WO2020031235A1 - Cleaning nozzle, cleaning gun, and cleaning device - Google Patents

Cleaning nozzle, cleaning gun, and cleaning device Download PDF

Info

Publication number
WO2020031235A1
WO2020031235A1 PCT/JP2018/029418 JP2018029418W WO2020031235A1 WO 2020031235 A1 WO2020031235 A1 WO 2020031235A1 JP 2018029418 W JP2018029418 W JP 2018029418W WO 2020031235 A1 WO2020031235 A1 WO 2020031235A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning liquid
pressurized water
cleaning
nozzle
tip
Prior art date
Application number
PCT/JP2018/029418
Other languages
French (fr)
Japanese (ja)
Inventor
長谷川　可賀
Original Assignee
有限会社ガリュー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 有限会社ガリュー filed Critical 有限会社ガリュー
Priority to PCT/JP2018/029418 priority Critical patent/WO2020031235A1/en
Publication of WO2020031235A1 publication Critical patent/WO2020031235A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays

Definitions

  • the present invention relates to a cleaning nozzle, a cleaning gun, and a cleaning device.
  • a foaming cleaning device having an ejection section for ejecting a cleaning liquid in a mist form by introducing a compressed gas, and a foaming section for foaming a mist-like cleaning liquid ejected from the ejection section.
  • the foaming section has an introduction portion connected to the ejection portion, an enlarged portion having a larger flow area than the introduction portion, and a casing having a lead-out portion having a smaller flow area than the enlarged portion. And a porous member housed in the enlarged portion.
  • the present invention provides a cleaning nozzle, a cleaning gun, and a cleaning device that can sufficiently foam a mixture of a cleaning liquid and water.
  • a cleaning liquid inlet having a pressurized water inlet connected to a pressurized water supply source and a cleaning liquid inlet connected to a cleaning liquid supply source.
  • a tip-side nozzle portion for ejecting from an intermediate ejection port in the middle of the direction, an outer guide portion provided surrounding the cylindrical portion, and ejecting a foam ejected from the intermediate ejection port from an outer ejection port, and the cylinder Between the shaped part and the outer guide part
  • the Kisotogawa spout having a air introduction passage can be introduced outside air from the opposite side.
  • the intermediate outlet is an upstream side wall portion obliquely projecting radially outward from the cylindrical main body of the cylindrical portion toward the tip outlet side. And a downstream side wall protruding obliquely from the main body part inward in the radial direction and on the opposite side to the front end jet port.
  • the cylindrical portion has a configuration in which the cylindrical portion is directed to an inner side in the radial direction of the cylindrical portion and to a tip end outlet side, upstream of the intermediate outlet.
  • An upstream port that opens at an angle to the axial direction may be provided.
  • the upstream port is an upstream side wall portion obliquely projecting radially inward from the cylindrical main body of the cylindrical portion toward the tip outlet side, And a downstream side wall that projects diagonally outward from the main body in the radial direction and on the opposite side to the tip outlet.
  • a sixth aspect of the present invention is directed to any one of the first to fifth aspects, and a pressurized water supply switch which is connected to the pressurized water supply source and switches between supply and cutoff of pressurized water from the pressurized water supply source to the pressurized water inlet.
  • a cleaning liquid supply switching unit that is connected to the cleaning liquid supply source and switches between supply and cutoff of the cleaning liquid from the cleaning liquid supply source to the cleaning liquid introduction port.
  • 7A seventh aspect of the present invention includes the sixth aspect, the pressurized water supply source, and the cleaning liquid supply source.
  • FIG. 2 is a partial plan view showing a part of a cross section of a cleaning nozzle according to an embodiment of the present invention.
  • the cleaning device 11 includes a cleaning gun 12, a high-pressure water pump 13 as a pressurized water supply source, and a cleaning liquid storage tank 14 as a cleaning liquid supply source.
  • the high-pressure water pump 13 suctions water stored in a tank or water supplied from a water tap, and pressurizes and discharges the electric power.
  • the cleaning liquid storage tank 14 stores a cleaning liquid such as a surfactant.
  • the cleaning gun 12 includes a gun body 21, a pipe 22 extending from the gun body 21, a handle 23 provided at an intermediate position of the pipe 22, a cleaning liquid supply line 24 provided along the pipe 22, and a pipe 22. And a cleaning nozzle 25 attached to a tip end opposite to the gun body 21.
  • the cleaning nozzle 25 has a pressurized water inlet 28 connected to the pipe 22 and a cleaning liquid inlet 29 connected to the cleaning liquid supply line 24.
  • the pipe 22 has high rigidity as a whole and is difficult to deform.
  • the cleaning liquid supply line 24 has a low rigidity at an intermediate portion and is easily deformed.
  • the gun body 21 has a main body portion 31, a pipe connecting portion 32, a grip portion 33, a front guard portion 34, a lower guard portion 35, and a pressurized water introduction connection portion 36.
  • the pipe connecting portion 32 is provided at one end in the length direction of the main body 31.
  • the grip portion 33 extends from the end of the main body portion 31 on the opposite side to the pipe connecting portion 32 in a direction crossing the length direction of the main body portion 31.
  • the front guard portion 34 extends along the grip portion 33 from an intermediate position in the longitudinal direction of the main body portion 31 to the same side as the grip portion 33.
  • the lower guard portion 35 connects the grip portion 33 and the front guard portion 34 on opposite sides of the main body portion 31.
  • the pressurized water introduction connecting portion 36 protrudes to the same side as the front guard portion 34 from between the pipe connecting portion 32 and the front guard portion 34 in the main body portion 31.
  • the gun body 21 has a pressurized water supply switching lever 41 extending from the grip portion 33 and the front guard portion 34 of the main body portion 31 to the same side as these.
  • the pressurized water supply switching lever 41 is swingably connected to the main body 31.
  • the gun body 21 has a pressurized water introduction connection portion 36 connected to the high-pressure water pump 13 via a pipe 37.
  • the pressurized water supply switching lever 41 is included in the pressurized water supply switching unit 42 provided in the main body 31.
  • the pressurized water supply switching unit 42 switches between communication and blocking between the pressurized water introduction connection unit 36 and the pipe connection unit 32 via a flow path in the gun body 21.
  • the pressurized water supply switching section 42 is closed when the pressurized water supply switching lever 41 is close to the front guard section 34 of the front guard section 34 and the grip section 33.
  • the pressurized water supply switching unit 42 in the closed state cuts off communication between the pressurized water introduction connection unit 36 and the pipe connection unit 32 via the flow path in the gun body 21.
  • the pressurized water supply switching unit 42 is urged by a spring (not shown) so as to be in the closed state.
  • the pressurized water supply switching unit 42 is open when the pressurized water supply switching lever 41 is close to the grip 33 of the front guard 34 and the grip 33.
  • the pressurized water supply switching unit 42 in the open state allows the pressurized water introduction connection unit 36 and the pipe connection unit 32 to communicate with each other via a flow path in the gun body 21.
  • the grip portion 33 is gripped by the operator's hand, and the pressurized water supply switching lever 41 is operated by the finger of the hand, and is pulled toward the grip portion 33 side. Then, the pressurized water supply switching unit 42 is opened, and pressurized water from the high-pressure water pump 13 introduced into the pressurized water introduction connection unit 36 flows to the pipe connection unit 32.
  • the pressurized water supply switching unit 42 When the operation on the pressurized water supply switching lever 41 is released, the pressurized water supply switching unit 42 returns the pressurized water supply switching lever 41 to the front guard unit 34 side by the urging force of a spring (not shown) while introducing the pressurized water.
  • the closed state restricts the flow of the water of the high-pressure water pump 13 introduced into the connection part 36 to the pipe connection part 32.
  • the pipe 22 is connected to the pipe connecting portion 32 of the gun body 21.
  • the pipe 22 has a linear portion 45 and an inclined portion 46.
  • the linear portion 45 linearly extends from the pipe connecting portion 32 of the gun body 21 on an extension in the length direction of the main portion 31.
  • the main body portion 31 of the gun body 21 and the linear portion 45 of the pipe 22 have a continuous linear shape.
  • the inclined portion 46 extends from the end of the linear portion 45 on the opposite side to the gun body 21 while being slightly inclined with respect to the extending direction of the linear portion 45.
  • the inclined portion 46 is inclined with respect to the extension direction of the linear portion 45 so as to be located on the same side as the side on which the grip portion 33 extends with respect to the main body portion 31.
  • the end of the pipe 22 opposite to the gun body 21 is connected to the pressurized water inlet 28 of the cleaning nozzle 25. That is, the end of the inclined portion 46 opposite to the straight portion 45 is connected to the pressurized water inlet 28.
  • the gun body 21 supplies pressurized water from the high-pressure water pump 13 flowing from the pressurized water introduction connection portion 36 to the pipe connection portion 32 to the pressurized water introduction port 28 via the pipe 22. Therefore, the pressurized water supply switching unit 42 of the gun body 21 is connected to the high pressure water pump 13 and switches between supply and cutoff of the pressurized water from the high pressure water pump 13 to the pressurized water inlet 28 of the cleaning nozzle 25.
  • the handle 23 has an annular ring portion 51 and a rod-shaped handle main body portion 52.
  • the ring portion 51 has the straight portion 45 of the pipe 22 inserted therein, and is fixed to the straight portion 45 in this state.
  • the handle body 52 is fixed to the ring 51 so as to extend outward in the radial direction of the ring 51.
  • a handle body 52 extends from the straight portion 45 on the same side as the direction in which the grip portion 33 extends with respect to the straight portion 45 of the pipe 22 and the main body 31 of the gun body 21. The operator operates the cleaning gun 12 with the grip 33 of the gun main body 21 held by one hand and the handle main body 52 of the handle 23 held by the other hand.
  • the cleaning liquid supply line 24 has a cleaning liquid introduction connection portion 62 at the end on the gun body 21 side.
  • the cleaning liquid introduction connection section 62 is provided in front of the pressurized water introduction connection section 36 of the gun body 21.
  • the cleaning liquid supply line 24 has a cleaning liquid introduction connection portion 62 connected to the cleaning liquid storage tank 14 via a pipe 66.
  • the cleaning liquid supply line 24 has a cleaning liquid supply switching section 64 including a cleaning liquid supply switching lever 63 on the side opposite to the cleaning liquid introduction connection section 62 of the cleaning liquid introduction connection section 62.
  • the cleaning liquid supply line 24 has a nozzle-side connection part 65 connected to the cleaning liquid introduction port 29 of the cleaning nozzle 25 at an end opposite to the cleaning liquid introduction connection part 62 in the longitudinal direction.
  • the cleaning liquid supply switching unit 64 switches between communication and blocking between the cleaning liquid introduction connection unit 62 and the nozzle side connection unit 65 via the flow path in the cleaning liquid supply line 24.
  • the cleaning liquid supply switching unit 64 is opened when the cleaning liquid supply switching lever 63 is tilted to the side opposite to the gun body 21 and extends along the direction in which the cleaning liquid supply line 24 extends.
  • the cleaning liquid supply switching section 64 in the open state connects the cleaning liquid introduction connection section 62 and the nozzle-side connection section 65 via a flow path in the cleaning liquid supply line 24.
  • the cleaning liquid supply switching section 64 is closed when the cleaning liquid supply switching lever 63 is perpendicular to the direction in which the cleaning liquid supply line 24 extends.
  • the cleaning liquid supply switching unit 64 in the closed state interrupts communication between the cleaning liquid introduction connection unit 62 and the nozzle-side connection unit 65 via the flow path in the cleaning liquid supply line 24.
  • the cleaning liquid supply switching unit 64 is connected to the cleaning liquid storage tank 14 and switches between supplying and shutting off the cleaning liquid from the cleaning liquid storage tank 14 to the cleaning liquid inlet 29 of the cleaning nozzle 25.
  • the cleaning liquid supply switching unit 64 controls the flow path in the cleaning liquid supply line 24 between the cleaning liquid introduction connection unit 62 and the nozzle side connection unit 65 according to the angle of the cleaning liquid supply switching lever 63 with respect to the extending direction of the cleaning liquid supply line 24.
  • the amount of communication through is continuously changed from fully closed to fully open.
  • the cleaning liquid supply line 24 has a low-rigidity intermediate portion supported between the ring portion 51 of the handle 23 and the handle main body 52 via a support 71.
  • the cleaning nozzle 25 is connected to the base side nozzle part 81 having the pressurized water inlet 28 and the cleaning liquid inlet 29, the front side nozzle part 82 connected to the base side nozzle part 81, and the front side nozzle part 82. And an outer guide portion 83.
  • the proximal nozzle section 81 has a connecting nozzle section 85 connected to the pipe 22 and a proximal nozzle section main body 86 connected to the distal nozzle section 82.
  • connection nozzle portion 85 of the base end nozzle portion 81 has a connection body 301 and an internal pipe 302.
  • the connecting body 301 has a substantially hexagonal cylindrical shape, and has a screw screwed to one end in the axial direction thereof, as shown in FIG. 1, to a tip of the inclined portion 46 of the pipe 22 opposite to the straight portion 45.
  • a pressurized water inlet 28 which is a hole is formed.
  • the pressurized water inlet 28 is connected to the high-pressure water pump 13 via the pipe 22, the gun body 21, and the pipe 37.
  • the connection body 301 extends in the extension direction of the inclined portion 46 while being connected to the inclined portion 46.
  • the internal pipe 302 has a cylindrical shape, and pressurized water flows along the axial direction of the connecting body 301 from the end of the connecting body 301 opposite to the pressurized water inlet 28 shown in FIG. 1. It extends in a direction opposite to the inlet 28.
  • the connection body 301 and the internal pipe 302 are coaxially arranged and connected.
  • the portion of the internal pipe 302 extending outside the connection body 301 is a cylindrical internal extension 303.
  • connection body 301 has a linear connection body inside flow path 311 penetrating in the axial direction inside thereof.
  • One end of the flow path 311 in the base body serves as the pressurized water inlet 28.
  • the flow path 311 in the proximal end body is narrowed more on the inner pipe 302 side than on the pressurized water inlet 28 side.
  • a male screw 312 is formed on the outer peripheral portion of the connecting body 301 on the opposite side to the pressurized water inlet 28 in the axial direction.
  • the straight internal pipe flow path 314 in the internal pipe 302 is provided on the extension of the connection body internal flow path 311 and is continuous with the connection internal body flow path 311.
  • An end of the internal pipe 302 on the opposite side to the connection body 301, that is, a tip of the internal pipe 302 is an internal ejection port 316.
  • the base nozzle body 86 of the base nozzle 81 has a base body 91 and an internal pipe 92.
  • the base end body 91 has a substantially hexagonal cylindrical shape, and has a screw hole 321 that is screwed into the male screw 312 of the connection nozzle portion 85 at one end in the axial direction.
  • the internal pipe 92 has a cylindrical shape, and extends in the direction opposite to the screw hole 321 along the axial direction of the proximal body 91 from the end of the proximal body 91 opposite to the axial screw hole 321. .
  • the base body 91 and the internal pipe 92 are coaxially arranged and connected.
  • a portion of the internal pipe 92 extending outward from the base body 91 is a cylindrical internal extension 93.
  • the base end body 91 has a straight base end body inner passage 101 penetrating in the axial direction inside thereof.
  • One end of the base body internal flow path 101 is a screw hole 321.
  • the base body 91 is provided with a cleaning liquid inlet 29 which is a screw hole screwed into the nozzle side connection portion 65 of the cleaning liquid supply line 24 shown in FIG. 1, as shown in FIG. It is formed so as to be orthogonal to the middle part of the road 101.
  • a male screw 102 is formed in the proximal end body 91 at an outer peripheral portion opposite to the screw hole 321 in the axial direction.
  • connection nozzle portion 85 The male screw 312 of the connection nozzle portion 85 is screwed into the screw hole 321 of the base end nozzle portion main body 86, whereby the connection nozzle portion 85 and the base end nozzle portion main body 86 are aligned with the center axis. In this state, they are connected to each other to form the base end nozzle section 81.
  • the internal extension portion 303 of the internal pipe 302 of the connecting nozzle portion 85 is inserted into the flow path 101 in the proximal end body of the proximal end side nozzle portion main body 86 with a gap in the radial direction.
  • the internal outlet 316 of the internal pipe 302 of the connecting nozzle portion 85 is located on the opposite side of the screw hole 321 from the cleaning liquid inlet 29 of the flow path 101 in the base end body.
  • the internal extension portion 303 of the internal pipe 302 of the connection nozzle portion 85 extends from the cleaning liquid introduction port 29 of the base end internal body flow path 101 to a side opposite to the screw hole 321.
  • the straight internal pipe flow path 104 in the internal pipe 92 is provided on the extension of the base body internal flow path 101 and is continuous with the base internal body flow path 101.
  • the flow path 311 in the connection body and the flow path 314 in the internal pipe of the connection nozzle part 85, and the flow path 101 in the base body and the flow path 104 in the internal pipe of the base part 86 of the base side nozzle part are connected to the base side nozzle part.
  • a base-end-side nozzle section inner flow path 105 that penetrates 81 linearly in the axial direction is formed.
  • the cleaning liquid introduction port 29 is orthogonal to the flow path 105 in the base nozzle section.
  • the end of the internal pipe 92 opposite to the screw hole 321, that is, the tip of the internal pipe 92 is the internal outlet 106.
  • One end in the longitudinal direction of the flow path 105 in the proximal end nozzle portion is the pressurized water inlet 28 of the connecting nozzle portion 85, and the other end in the longitudinal direction is the internal outlet 106 of the proximal end nozzle portion main body 86.
  • the base-side nozzle portion 81 is provided with a flow of pressurized water introduced from the pipe 22 shown in FIG.
  • the cleaning liquid is sucked from the cleaning liquid storage tank 14 shown in FIG. 1 communicating with the nozzle 29 by the principle of an ejector, mixed with pressurized water, and ejected from the internal outlet 106 shown in FIG. Since the cleaning liquid is sucked by the flow of the pressurized water, which is the pressurized liquid, the suction force is increased as compared with the case where the cleaning liquid is suctioned by the flow of the pressurized gas, and the cleaning liquid supply line 24 and the pipe 66 shown in FIG. Also, the cleaning liquid can be favorably sucked from the cleaning liquid storage tank 14.
  • the distal nozzle section 82 has a distal body 121 and a distal pipe 122.
  • the distal end body 121 has a screw hole 123 formed at one end in the axial direction to be screwed into the male screw 102 of the base end nozzle portion main body 86 of the base end nozzle portion 81.
  • the distal end pipe 122 has a substantially cylindrical shape, and extends in an axial direction of the distal end body 121 from an end of the distal end body 121 opposite to the axial screw hole 123 in a direction opposite to the screw hole 123.
  • the tip body 121 and the tip pipe 122 are coaxially arranged and connected.
  • a portion of the tip pipe 122 that extends outside the tip body 121 is a tubular tip tubular portion 124 (tubular portion).
  • a linear body 131 in the distal end body that penetrates in the axial direction is formed inside the distal end body 121.
  • One end of the flow path 131 in the distal end body is formed by a screw hole 123.
  • a straight outside air intake passage 132 intersecting the inside passage body 131 is formed in the front end body 121 between the front end pipe 122 and the screw hole 123.
  • the outside air intake passage 132 is arranged on a surface whose central axis includes the central axis of the distal end body 121.
  • the outside air intake passage 132 is inclined so that the outer side in the radial direction of the distal end body 121 is located closer to the screw hole 123 in the axial direction of the distal end body 121.
  • the outside air intake passage 132 has a screw hole in the axial direction of the tip body 121 in which the outside air intake 133 opening outward in the radial direction of the tip body 121 is smaller than the outside air discharge opening 134 opening in the tip body inside passage 131. It is arranged on the 123 side. A plurality, specifically, three, of such outside air intake channels 132 are formed at equal intervals in the circumferential direction of the distal end side nozzle portion 82. As described above, the distal end side nozzle portion 82 has the outside air intake passage 132 including the outside air intake 133 and the outside air discharge port 134.
  • a straight channel groove 141 extending in the axial direction of the tip body 121 is formed in the outer peripheral portion of the tip body 121.
  • the flow path groove 141 is formed from a predetermined intermediate position on the distal end tubular portion 124 side to the end cylindrical portion 124 side end surface of the distal end body 121 with respect to the axial outside air intake 133 of the distal end body 121.
  • the flow channel 141 is open at the end face of the tip body 121 on the tip cylindrical portion 124 side.
  • a plurality of, specifically, three, flow passage grooves 141 are formed at equal intervals in the circumferential direction of the distal end body 121.
  • Each of the flow channel grooves 141 is disposed at a central position between the external air intake flow channel 132 shown in FIG. That is, the outside air intake passages 132 and the passage grooves 141 are alternately arranged at equal intervals in the circumferential direction of the distal end body 121.
  • one of the flow grooves 141 is formed with an engagement groove 142 in which the distal body 121 has a radial depth that is greater than the flow groove 141.
  • the engagement groove 142 is formed from the end of the flow channel 141 on the screw hole 123 side to a predetermined intermediate position in the extending direction of the flow channel 141.
  • the proximal nozzle portion main body 86 of the proximal nozzle portion 81 is screwed into the screw hole 123 of the distal body 121 with the male screw 102.
  • the internal extension 93 of the base end side nozzle portion main body 86 is inserted into the distal end body channel 131 with a gap in the radial direction of the distal end body 121.
  • the internal ejection port 106 of the internal extension portion 93 is surrounded by the distal end body 121.
  • the outside air discharge port 134 is disposed closer to the screw hole 123 than the internal ejection port 106 of the internal extension 93 in the axial direction of the distal end body 121.
  • the distal end nozzle portion 82 is provided with a distal end body 121 surrounding the internal ejection port 106 of the proximal end nozzle portion 81.
  • the distal end tubular portion 124 has a cylindrical distal end nozzle main body 151 (main body) and a distal end member 152 fixed inside the distal end of the distal end nozzle main body 151.
  • the distal end member 152 has an annular shape, and an inner peripheral side thereof serves as a distal end outlet 153.
  • the tip nozzle body 151 is a cylinder having a constant inner diameter and a constant outer diameter.
  • the tip member 152 has an inner diameter of the tip outlet 153 smaller than an inner diameter of the tip nozzle body 151.
  • the distal end cylindrical portion 124 has an upstream side wall 161 and a downstream side wall 162 between the front end outlet 153 and the front end body 121.
  • the upstream side wall 161 is closer to the distal end body 121 than the downstream side wall 162 is.
  • the upstream side wall 161 is on the upstream side of the downstream side wall 162 in the flow direction of the fluid in the distal end tubular portion 124.
  • the upstream side wall portion 161 and the downstream side wall portion 162 are aligned with each other in the circumferential direction of the distal end tubular portion 124.
  • the upstream side wall 161 projects obliquely outward from the cylindrical tip nozzle body 151 toward the tip outlet 153.
  • the upstream side wall 161 has a shape of a part of a substantially cylindrical shape, and protrudes radially outward from the tip nozzle body 151.
  • the downstream side wall 162 projects obliquely from the tip nozzle body 151 toward the inside in the radial direction and toward the side opposite to the tip outlet 153.
  • the downstream side wall 162 has a substantially cylindrical shape and is recessed radially inward from the tip nozzle body 151.
  • the edge of the upstream side wall 161 on the side of the tip outlet 153 and the edge of the downstream side wall 162 on the side of the tip body 121 are connected in a substantially annular shape to form an intermediate outlet 165 inside. That is, the intermediate ejection port 165 is formed by the edge of the upstream side wall 161 in the axial direction of the distal end tubular portion 124 on the tip ejection port 153 side and the edge of the downstream side wall 162 on the tip body 121 side. ing.
  • the intermediate ejection port 165 is directed outward in the radial direction of the tip cylindrical portion 124 and toward the tip ejection port 153, and is inclined with respect to the axial direction of the tip tubular portion 124, that is, the axial direction of the tip nozzle body portion 151. It is open.
  • the intermediate outlet 165 has a substantially circular shape when viewed in this direction.
  • the intermediate outlet 165 is provided at a position between the distal end outlet 153 and the distal end body 121 at an intermediate position in the axial direction of the distal end cylindrical portion 124.
  • the upstream side wall 161 and the downstream side wall 162 are formed by plastic deformation by obliquely piercing a cylindrical material with a rod-shaped tool having a conical tip.
  • An intermediate ejection port 165 is formed in the distal pipe 122 so as to penetrate from the outer peripheral side to the inner peripheral side of the distal pipe 122.
  • the distal end tubular portion 124 is provided with a plurality of, specifically, two, intermediate outlets 165 at equal intervals in the circumferential direction of the distal end tubular portion 124 by adjusting the position in the axial direction of the distal end tubular portion 124. It is formed with.
  • the distal end cylindrical portion 124 has an upstream side wall 171 and a downstream side wall 172 between the intermediate ejection port 165 and the distal end body 121.
  • the upstream side wall 171 is closer to the distal end body 121 than the downstream side wall 172 is.
  • the upstream side wall 171 is located on the upstream side of the downstream side wall 172 in the flow direction of the fluid in the distal end tubular portion 124.
  • the upstream side wall portion 171 and the downstream side wall portion 172 align the position of the distal end tubular portion 124 in the circumferential direction.
  • the upstream side wall 171 projects obliquely inward in the radial direction and toward the tip outlet 153 from the cylindrical tip nozzle body 151.
  • the upstream side wall 171 has a shape of a part of a substantially cylindrical shape and is recessed radially inward from the tip nozzle body 151.
  • the downstream side wall portion 172 projects obliquely outward from the tip nozzle body 151 in a direction radially outward and opposite to the tip ejection port 153.
  • the downstream side wall portion 172 has a part of a substantially cylindrical shape and protrudes radially outward from the tip nozzle body 151.
  • An upstream port 175 is formed on the inside by being connected in a substantially annular shape. That is, the upstream port 175 is formed by the end edge of the upstream side wall 171 in the axial direction of the front end cylindrical portion 124 on the front end outlet 153 side and the end edge of the downstream side wall 172 on the front end body 121 side. I have.
  • the upstream opening 175 opens obliquely in the axial direction of the distal end cylindrical portion 124, that is, in the axial direction of the distal end nozzle main body 151, inwardly in the radial direction of the distal end cylindrical portion 124 and toward the distal end outlet 153. are doing.
  • the upstream port 175 has a substantially circular shape when viewed in this direction.
  • the upstream port 175 is provided at a position between the intermediate jet port 165 and the distal end body 121, which is located in the middle of the distal end cylindrical portion 124 in the axial direction.
  • the distal end tubular portion 124 is provided with an upstream port 175 on the upstream side of the intermediate ejection port 165 in the flow direction of the fluid in the distal end tubular portion 124.
  • the end pipe 122 is formed by obliquely drilling a cylindrical material with a rod-shaped tool having a conical tip, so that the upstream side wall 171 and the downstream side wall 172 are formed by plastic deformation.
  • An upstream port 175 is formed in the distal pipe 122 so as to penetrate from the outer peripheral side to the inner peripheral side of the distal pipe 122.
  • the upstream end 175 is provided with a plurality of, specifically, two, upstream ports 175 in the distal end cylindrical portion 124 at equal intervals in the circumferential direction of the distal end cylindrical portion 124 by adjusting the position in the axial direction of the distal end cylindrical portion 124. Is formed.
  • Each of the upstream ports 175 is disposed at a central position between the intermediate jet ports 165 in the circumferential direction of the distal end cylindrical portion 124. That is, the intermediate ejection ports 165 and the upstream ports 175 are alternately arranged at equal intervals in the circumferential direction of the distal end tubular portion 124.
  • the straight end pipe 122 inside the end pipe 122 is provided on an extension of the end body flow path 131 and is continuous with the end body flow path 131.
  • the front-end pipe flow path 181 includes a straight main-body flow path 182 in the front-end nozzle main body 151 and a front-end outlet 153 on an extension thereof.
  • One end in the length direction of the flow path 185 in the front end nozzle portion is formed by the screw hole 123, and the other end in the length direction is formed by the front end outlet 153.
  • the intermediate outlet 165 and the upstream outlet 175 are branched from the upstream end in the flow direction of the fluid in the front-end-side nozzle section flow path 185 from the front-end discharge port 153 of the main body flow path 182.
  • the distal end outlet 153 of the distal end cylindrical portion 124 is narrowed to the in-body passage 182 in the distal end nozzle body 151.
  • the flow passage areas of the intermediate outlet 165 and the upstream outlet 175 are equal to each other, and are larger than the flow passage area of the front end outlet 153.
  • the outer guide portion 83 has a cylindrical guide member 201 and a stopper 202 provided at one end of the guide member 201 in the axial direction.
  • the guide member 201 has a screw hole 203 penetrating in the radial direction at one end in the axial direction, and the other end in the axial direction serves as the outer ejection port 205.
  • the stopper 202 is screwed into a screw hole 203 of the guide member 201.
  • the tip side nozzle portion 82 is inserted into the screw hole 203 side of the guide member 201 in the axial direction, with the tip end outlet 153 side in the axial direction leading, and the tip body 121 is fitted. .
  • the guide member 201 is slidable in the axial direction with respect to the distal end body 121. Therefore, the outer guide portion 83 is fitted to the tip side nozzle portion 82 so as to be slidable in the axial direction.
  • the stopper 202 is inserted into the engagement groove 142 of the distal end body 121 with the guide member 201 fitted in the distal end body 121.
  • the outer guide portion 83 allows the stopper 202 to move within the engagement groove 142 in the extending direction of the engagement groove 142, and is slidable with respect to the distal end side nozzle portion 82 in this range.
  • the stopper 202 when the stopper 202 is pressed against the bottom of the engagement groove 142 by adjusting the screwing amount into the screw hole 203, the stopper 202 regulates the sliding of the outer guide portion 83 with respect to the tip side nozzle portion 82, and the outer guide portion 83 is fixed to the tip side nozzle portion 82.
  • the stopper 202 is slightly separated from the bottom of the engagement groove 142, the outer guide portion 83 can slide with respect to the distal end nozzle portion 82 while moving the stopper 202 within the engagement groove 142.
  • the stopper 202 When the stopper 202 is located outside the inner peripheral surface of the guide member 201 in the radial direction of the guide member 201, the outer guide portion 83 can be removed from the tip side nozzle portion 82.
  • the cleaning nozzle 25 is used in a state where the stopper 202 is arranged in the engagement groove 142.
  • the outer guide portion 83 is provided so as to surround the distal end tubular portion 124 of the distal end side nozzle portion 82. Further, in this use state, the outer guide portion 83 forms an outer ejection flow path 211 between the distal end tubular portion 124 of the distal end side nozzle portion 82 and the distal end body 121.
  • One end of the outer ejection flow path 211 is an outer ejection port 205, and the outer ejection port 205 opens outside the cleaning nozzle 25 at the outer ejection port 205.
  • the outer guide portion 83 does not cover the outside air intake 133 of the distal end nozzle portion 82. That is, in this use state, the outside air intake channel 132 is always open to the outer surface of the cleaning nozzle 25.
  • the flow path groove 141 formed in the distal end body 121 is covered with the outer guide portion 83, and depending on the position of the outer guide portion 83, as shown in FIG. 4 or a part on the screw hole 123 side is not covered with the outer guide portion 83 as shown in FIG.
  • the outer ejection passage 211 is always in communication with the outside air introduction passage 212 in the passage groove 141 formed in the tip body 121.
  • the outside air introduction passage 212 opens the end of the outer ejection passage 211 on the side opposite to the outer ejection port 205 to the outside of the cleaning nozzle 25. Let it. In this state, the outer ejection flow passage 211 communicates with the outside of the cleaning nozzle 25 via the outside air introduction passage 212 even at the end opposite to the outer ejection port 205. Therefore, the outside air introduction passage 212 can introduce outside air into the outside ejection passage 211 between the distal end cylindrical portion 124 and the outside guide portion 83 from the side opposite to the outside ejection port 205.
  • the outer guide portion 83 is in a retracted state in which the stopper 202 is in contact with the end of the engagement groove 142 on the side opposite to the distal end jet port 153, and the distal end nozzle portion 82 has a cylindrical shape.
  • the part 124 protrudes from the outer jet 205.
  • the distal end outlet 153 of the distal end tubular portion 124 is located outside the outer outlet 205.
  • the flow channel 141 is entirely covered with the outer guide portion 83, and the outside air introduction path 212 extends from the side opposite to the outer jet port 205 to the outer jet channel 211. It is in a state where the introduction of outside air is suppressed.
  • the outer guide portion 83 pushes the distal end tubular portion 124 of the distal end nozzle portion 82 in the forward state in which the stopper 202 is in contact with the end of the engagement groove 142 on the distal end outlet 153 side. , And protrude outward from the outer ejection port 205 with a length shorter than the retracted state.
  • the tip ejection port 153 of the tip tubular portion 124 substantially coincides with the outer ejection port 205 in the axial position.
  • a part of the flow channel 141 on the screw hole 123 side is exposed outside the outer guide portion 83.
  • the outside air introduction passage 212 is in a state where outside air can be introduced into the outside ejection channel 211 from the side opposite to the outside ejection port 205.
  • the intermediate ejection port 165 and the upstream port 175 of the tip side nozzle portion 82 are always within the range of the outer ejection channel 211. It is in. In other words, in the cleaning nozzle 25 in the used state, the intermediate ejection port 165 and the upstream port 175 of the tip side nozzle portion 82 overlap the outer guide portion 83 with the position of the cleaning nozzle 25 in the axial direction.
  • the operator sets the cleaning liquid supply switching unit 64 to the open state with the cleaning liquid supply switching lever 63, and closes the front end outlet 153 and the outer outlet 205 of the cleaning nozzle 25.
  • the grip portion 33 of the gun body 21 is gripped and the pressurized water supply switching lever 41 is pulled.
  • pressurized water is introduced into the cleaning nozzle 25 into the pressurized water inlet 28 of the connecting nozzle portion 85 of the proximal nozzle portion 81, and flows through the internal outlet 316 into the flow path in the proximal body of the proximal nozzle portion main body 86. Accordingly, the gas flows into the inner pipe 101 from the base body inner flow path 101 and flows toward the inner jet port 106.
  • the base side nozzle section 81 introduces the cleaning liquid from the cleaning liquid storage tank 14 by the principle of an ejector with the flow of the pressurized water introduced into the pressurized water introduction port 28 toward the internal jet port 106 after being jetted from the internal jet port 316. It is sucked into the port 29 and mixed with the pressurized water in the flow path 105 in the base side nozzle portion and jetted from the internal jet port 106.
  • the mixed liquid of the pressurized water and the cleaning liquid spouted from the internal spout 106 of the base end nozzle portion 81 is spouted into the flow passage 131 in the front end body of the front end nozzle portion 82 to cause the front end flow passage 131 in the front end body to move forward It will flow toward the flow path 181 in the pipe.
  • the distal side nozzle portion 82 flows the mixed liquid of the pressurized water and the cleaning liquid in the distal end body flow path 131 thus ejected from the internal outlet 106 of the proximal side nozzle portion 81 by the principle of the ejector.
  • the outside air is sucked into the outside air intake passage 132 from the outside air intake 133 and is discharged from the outside air discharge port 134 to the front body flow passage 131.
  • the tip side nozzle section 82 mixes the taken-in outside air and the mixed liquid in the tip body internal flow path 131 to form a foam, flows in the main body internal flow path 182, and ejects it from the front end outlet 153.
  • the foam is also discharged from the plurality of intermediate outlets 165.
  • the distal end nozzle 82 causes the foam to be ejected from the distal end outlet 153 in which the distal end of the distal end cylindrical portion 124 is narrowed and the intermediate outlet 165 axially intermediate of the distal end cylindrical portion 124.
  • the foam ejected from the intermediate ejection port 165 in this manner passes through the outside ejection channel 211 in the outside guide portion 83 and is ejected from the outside ejection port 205. That is, the outer guide portion 83 causes the foam ejected from the intermediate ejection port 165 to be ejected from the outer ejection port 205 to the outside of the cleaning nozzle 25.
  • the outside air introduction passage 212 ejects from the intermediate ejection outlet 165 and flows through the outside ejection passage 211.
  • the air outside the washing nozzle 25 is sucked from the outside air introduction path 212 to the outside ejection channel 211, and the foam is injected into the outside ejection channel 211. Then, air is further mixed and jetted from the outer jet port 205.
  • the air introduced into the outer ejection channel 211 in the outside air introduction channel 212 flows through the upstream port 175 through the upstream port 175 due to the flow of the foam flowing in the internal channel 182 in the tip nozzle main body 151. 182 and mixed into a foam.
  • the mousse-like foam that has been sufficiently filled with air is blown out from the front end outlet 153 and the outer outlet 205.
  • the foam blown from the cleaning nozzle 25 onto the object to be cleaned has an improved adhesion to the object to be cleaned, and a longer time for staying on the object to be cleaned, so that the cleaning effect is further enhanced.
  • the foams ejected from the outer ejection port 205 of the outer guide portion 83 of the cleaning nozzle 25 are ejected collectively in a narrow range.
  • the foam ejected from the outer ejection port 205 spreads over a wide range and is ejected. In this manner, by sliding the outer guide portion 83 with respect to the distal end nozzle portion 82, the ejection pattern of the foam ejected from the outer ejection port 205 is continuously changed from a narrow state to a wide state. Can be.
  • the cleaning liquid supply switching unit 64 is fully closed by the cleaning liquid supply switching lever 63, the cleaning liquid is not introduced into the cleaning nozzle 25.
  • the cleaning nozzle 25 only the pressurized water contains a large amount of air and is jetted from the front jet port 153 and the outer jet port 205. Therefore, it is possible to suppress the rebound of the jetted pressurized water from the object to be washed.
  • the base-side nozzle portion 81 uses the flow of pressurized water introduced into the pressurized water inlet 28 connected to the high-pressure water pump 13, and the cleaning liquid storage tank 14 connected to the cleaning liquid inlet 29.
  • the cleaning liquid is sucked from the nozzle, mixed with the pressurized water, and ejected from the internal outlet 106.
  • the tip side nozzle portion 82 provided surrounding the internal ejection port 106 sucks outside air from the outside air inlet 133 by the flow of the mixed liquid of the cleaning liquid and the pressurized water ejected from the internal ejection port 106, and The mixture is mixed with the liquid mixed with the pressurized water and made into a foam, and is ejected from the tip end ejection port 153 in which the tip end of the tip end tubular section 124 is narrowed and the intermediate ejection port 165 axially intermediate of the tip end tubular section 124.
  • the outer guide portion 83 provided so as to surround the distal end cylindrical portion 124 causes the foam ejected from the intermediate outlet 165 to be ejected from the outer outlet 205.
  • air is sucked into the outside ejection passage 211 between the distal end tubular portion 124 and the outside guide portion 83 from the side opposite to the outside ejection port 205 via the outside air introduction passage 212, and Can be further aerated. Therefore, it is possible to sufficiently foam the mixed liquid of the cleaning liquid and the water.
  • the intermediate ejection port 165 opens obliquely with respect to the axial direction of the tip tubular portion 124 so as to be directed radially outward of the tip tubular portion 124 and toward the tip ejection port 153, that is, toward the outer ejection port 205.
  • the foam ejected from the intermediate ejection port 165 can be favorably ejected from the outer ejection port 205.
  • the intermediate jet port 165 is an upstream side wall that projects obliquely outward from the cylindrical tip nozzle body portion 151 of the tip tubular portion 124 toward the tip jet port 153 side, that is, the outside jet port 205 side. And a downstream side wall portion 162 projecting obliquely from the tip nozzle body portion 151 in a radially inward direction and opposite to the tip ejection port 153, that is, opposite to the outer ejection port 205. ing. For this reason, the downstream side wall portion 162 guides the foam from the inner main body flow path 182 to the outer jet outlet 205 of the outer jet flow path 211. In addition, the air flowing in the outer ejection passage 211 from the upstream side wall portion 161 flows in a direction in which the air collides with the inner peripheral surface of the outer guide portion 83, so that the air is more easily mixed with the foam.
  • distal end cylindrical portion 124 is directed to the radially inward direction of the distal end cylindrical portion 124 and the distal end outlet 153 side on the upstream side of the intermediate outlet 165 with respect to the axial direction of the distal end cylindrical portion 124.
  • An upstream port 175 that opens diagonally is provided. For this reason, the air flowing in the outer ejection flow path 211 can be introduced into the main body flow path 182 in the distal end tubular portion 124 and mixed with the foam flowing in the main body flow path 182.
  • the upstream port 175 has an upstream side wall portion 171 projecting obliquely inward in the radial direction and toward the tip ejection port 153 from the tubular tip nozzle body portion 151 of the tip tubular portion 124; And a downstream side wall portion 172 that projects obliquely outward from the portion 151 in the radial direction and on the opposite side to the tip ejection port 153. Therefore, the downstream side wall portion 172 guides air from the outer ejection flow passage 211 to the main body flow passage 182. Further, the upstream side wall portion 171 narrows the flow path 182 in the main body, disturbing the flow of the foam flowing in the flow path 182 in the main body, and the air from the upstream port 175 is mixed with the foam. It will be easier.
  • the intermediate outlet 165 and the upstream port 175 whose strength is to be reduced are alternately formed at equal intervals in the circumferential direction of the distal end cylindrical portion 124 in the distal end cylindrical portion 124, It is possible to prevent the strength of the distal end cylindrical portion 124 from decreasing in the direction.

Abstract

The present invention has: a proximal-side nozzle part (81) that sucks cleaning liquid from a cleaning liquid supply source (14) connected to a cleaning liquid inlet (29) by the flow of pressurized water introduced from a pressurized water inlet (28), mixes the cleaning liquid with pressurized water, and ejects the mixture from an internal jet port (106); a distal-side nozzle part (82) that sucks outside air from an outside air inlet (133) by the flow of liquid ejected from the internal jet port (106), mixes the outside air with the liquid to form a foam, and ejects the foam from a narrowed distal-end jet port (153) at the distal end of a cylindrical part (124) and an intermediate jet port (165) in the axial-direction center of the cylindrical part (124); an outside guide part (83) that ejects the foam ejected from the intermediate jet port (165) from an outside jet port (205); and an outside air introduction path (212) through which outside air can be introduced from the side opposite the outside jet port (205) between the cylindrical part (124) and the outside guide part (83).

Description

洗浄ノズル、洗浄ガンおよび洗浄装置Cleaning nozzle, cleaning gun and cleaning equipment
　本発明は、洗浄ノズル、洗浄ガンおよび洗浄装置に関する。 The present invention relates to a cleaning nozzle, a cleaning gun, and a cleaning device.
　圧縮ガスが導入されることにより洗浄液をミスト状に噴出させる噴出部と、噴出部から噴出させられるミスト状の洗浄液を発泡させる発泡部とを有する発泡洗浄装置がある。発泡部は、噴出部に連結される導入部と、この導入部より流路面積が大とされる拡大部と、この拡大部より流路面積が小とされる導出部とを有するケーシングと、拡大部内に収納される多孔質部材とを有している。 発 泡 There is a foaming cleaning device having an ejection section for ejecting a cleaning liquid in a mist form by introducing a compressed gas, and a foaming section for foaming a mist-like cleaning liquid ejected from the ejection section. The foaming section has an introduction portion connected to the ejection portion, an enlarged portion having a larger flow area than the introduction portion, and a casing having a lead-out portion having a smaller flow area than the enlarged portion. And a porous member housed in the enlarged portion.
特開２００１－３４７２３８号公報JP 2001-347238 A
　ところで、加圧水の流れで洗浄液を吸引し、加圧水と混合して噴出させる洗浄装置がある。このような洗浄装置では、洗浄液と水との混合液を十分に発泡させることができない。 洗浄 By the way, there is a cleaning apparatus that suctions a cleaning liquid by a flow of pressurized water, mixes the cleaning liquid with the pressurized water, and jets out the cleaning liquid. In such a cleaning device, the mixed liquid of the cleaning liquid and the water cannot be sufficiently foamed.
　本発明は、洗浄液と水との混合液を十分に発泡させることが可能となる洗浄ノズル、洗浄ガンおよび洗浄装置を提供する。 The present invention provides a cleaning nozzle, a cleaning gun, and a cleaning device that can sufficiently foam a mixture of a cleaning liquid and water.
　本発明の第１の態様は、加圧水供給源に接続される加圧水導入口および洗浄液供給源に接続される洗浄液導入口を有し、前記加圧水導入口に導入された加圧水の流れで前記洗浄液導入口に接続された洗浄液供給源から洗浄液を吸引して前記加圧水と混合して内部噴出口から噴出させる基端側ノズル部と、外気取入口を有し、前記内部噴出口を囲んで設けられ、該内部噴出口から噴出された液体の流れで前記外気取入口から外気を吸引して前記液体と混合し泡状体にして筒状部の先端の絞られた先端噴出口および前記筒状部の軸方向中間の中間噴出口から噴出させる先端側ノズル部と、前記筒状部を囲んで設けられ、前記中間噴出口から噴出された泡状体を外側噴出口から噴出させる外側ガイド部と、前記筒状部と前記外側ガイド部との間に前記外側噴出口とは反対側から外気を導入可能な外気導入路と、を有する。 According to a first aspect of the present invention, there is provided a cleaning liquid inlet having a pressurized water inlet connected to a pressurized water supply source and a cleaning liquid inlet connected to a cleaning liquid supply source. A base end side nozzle section for sucking a cleaning liquid from a cleaning liquid supply source connected to the nozzle, mixing the cleaning liquid with the pressurized water, and discharging the mixed liquid from the internal discharge port, and an outside air intake port, provided around the internal discharge port, The flow of the liquid ejected from the internal ejection port sucks the outside air from the outside air intake, mixes the liquid with the liquid, forms a foam, and narrows the tip end of the tubular portion, and the shaft of the tubular portion. A tip-side nozzle portion for ejecting from an intermediate ejection port in the middle of the direction, an outer guide portion provided surrounding the cylindrical portion, and ejecting a foam ejected from the intermediate ejection port from an outer ejection port, and the cylinder Between the shaped part and the outer guide part The Kisotogawa spout having a air introduction passage can be introduced outside air from the opposite side.
　本発明の第２の態様として、前記中間噴出口は、前記筒状部の径方向外方かつ前記先端噴出口側に指向して前記筒状部の軸方向に対し斜めに開口していても良い。 As a second aspect of the present invention, even if the intermediate ejection port is opened obliquely with respect to the axial direction of the tubular portion so as to be directed radially outward of the tubular portion and toward the tip ejection port side. good.
　本発明の第３の態様として、前記中間噴出口は、前記筒状部の筒状の本体部から、径方向外方かつ前記先端噴出口側に指向して斜めに突出する上流側壁部と、前記本体部から、径方向内方かつ前記先端噴出口とは反対側に指向して斜めに突出する下流側壁部と、により形成されていても良い。 As a third aspect of the present invention, the intermediate outlet is an upstream side wall portion obliquely projecting radially outward from the cylindrical main body of the cylindrical portion toward the tip outlet side. And a downstream side wall protruding obliquely from the main body part inward in the radial direction and on the opposite side to the front end jet port.
　本発明の第４の態様として、前記筒状部には、前記中間噴出口よりも上流側に、前記筒状部の径方向内方かつ前記先端噴出口側に指向して前記筒状部の軸方向に対し斜めに開口する上流口が、設けられていても良い。 As a fourth aspect of the present invention, the cylindrical portion has a configuration in which the cylindrical portion is directed to an inner side in the radial direction of the cylindrical portion and to a tip end outlet side, upstream of the intermediate outlet. An upstream port that opens at an angle to the axial direction may be provided.
　本発明の第５の態様として、前記上流口は、前記筒状部の筒状の本体部から、径方向内方かつ前記先端噴出口側に指向して斜めに突出する上流側壁部と、前記本体部から、径方向外方かつ前記先端噴出口とは反対側に指向して斜めに突出する下流側壁部と、により形成されていても良い。 As a fifth aspect of the present invention, the upstream port is an upstream side wall portion obliquely projecting radially inward from the cylindrical main body of the cylindrical portion toward the tip outlet side, And a downstream side wall that projects diagonally outward from the main body in the radial direction and on the opposite side to the tip outlet.
　本発明の第６の態様は、第１から第５のいずれか一態様と、前記加圧水供給源に接続されて該加圧水供給源から前記加圧水導入口への加圧水の供給および遮断を切り替える加圧水供給切替部と、前記洗浄液供給源に接続されて該洗浄液供給源から前記洗浄液導入口への洗浄液の供給および遮断を切り替える洗浄液供給切替部と、を含む。 A sixth aspect of the present invention is directed to any one of the first to fifth aspects, and a pressurized water supply switch which is connected to the pressurized water supply source and switches between supply and cutoff of pressurized water from the pressurized water supply source to the pressurized water inlet. A cleaning liquid supply switching unit that is connected to the cleaning liquid supply source and switches between supply and cutoff of the cleaning liquid from the cleaning liquid supply source to the cleaning liquid introduction port.
　本発明の第７の態様は、第６の態様と、前記加圧水供給源と、前記洗浄液供給源とを含む。 ７A seventh aspect of the present invention includes the sixth aspect, the pressurized water supply source, and the cleaning liquid supply source.
　本発明によれば、洗浄液と水との混合液を十分に発泡させることが可能となる。 According to the present invention, it is possible to sufficiently foam a mixture of a cleaning liquid and water.
本発明に係る一実施形態の洗浄装置を示す側面図である。It is a side view showing the cleaning device of one embodiment concerning the present invention. 本発明に係る一実施形態の洗浄ノズルを示す断面図である。It is sectional drawing which shows the cleaning nozzle of one Embodiment concerning this invention. 本発明に係る一実施形態の洗浄ノズルを示す正面図である。It is a front view showing the washing nozzle of one embodiment concerning the present invention. 本発明に係る一実施形態の洗浄ノズルを示す一部を断面とした部分平面図である。FIG. 2 is a partial plan view showing a part of a cross section of a cleaning nozzle according to an embodiment of the present invention.
　本発明に係る一実施形態の洗浄ノズル、洗浄ガンおよび洗浄装置を図面を参照して以下に説明する。 洗浄 A cleaning nozzle, a cleaning gun, and a cleaning apparatus according to an embodiment of the present invention will be described below with reference to the drawings.
　図１に示すように、本実施形態に係る洗浄装置１１は、洗浄ガン１２と、加圧水供給源である高圧水ポンプ１３と、洗浄液供給源である洗浄液貯留タンク１４と、を有している。高圧水ポンプ１３は、タンクに貯留された水あるいは水道の蛇口から供給された水を吸引し電動で加圧して吐出するものである。洗浄液貯留タンク１４は界面活性剤等の洗浄液を貯留するものである。 As shown in FIG. 1, the cleaning device 11 according to the present embodiment includes a cleaning gun 12, a high-pressure water pump 13 as a pressurized water supply source, and a cleaning liquid storage tank 14 as a cleaning liquid supply source. The high-pressure water pump 13 suctions water stored in a tank or water supplied from a water tap, and pressurizes and discharges the electric power. The cleaning liquid storage tank 14 stores a cleaning liquid such as a surfactant.
　洗浄ガン１２は、ガン本体２１と、ガン本体２１から延出するパイプ２２と、パイプ２２の途中位置に設けられたハンドル２３と、パイプ２２に沿って設けられた洗浄液供給ライン２４と、パイプ２２のガン本体２１とは反対側の先端部に取り付けられた洗浄ノズル２５と、を有している。 The cleaning gun 12 includes a gun body 21, a pipe 22 extending from the gun body 21, a handle 23 provided at an intermediate position of the pipe 22, a cleaning liquid supply line 24 provided along the pipe 22, and a pipe 22. And a cleaning nozzle 25 attached to a tip end opposite to the gun body 21.
　洗浄ノズル２５は、パイプ２２に接続される加圧水導入口２８と、洗浄液供給ライン２４に接続される洗浄液導入口２９と、を有している。パイプ２２は全体的に高剛性で変形困難となっている。洗浄液供給ライン２４は中間部分が低剛性で変形容易となっている。 The cleaning nozzle 25 has a pressurized water inlet 28 connected to the pipe 22 and a cleaning liquid inlet 29 connected to the cleaning liquid supply line 24. The pipe 22 has high rigidity as a whole and is difficult to deform. The cleaning liquid supply line 24 has a low rigidity at an intermediate portion and is easily deformed.
　ガン本体２１は、主体部３１と、パイプ連結部３２と、グリップ部３３と、前方ガード部３４と、下方ガード部３５と、加圧水導入接続部３６と、を有している。 The gun body 21 has a main body portion 31, a pipe connecting portion 32, a grip portion 33, a front guard portion 34, a lower guard portion 35, and a pressurized water introduction connection portion 36.
　パイプ連結部３２は、主体部３１の長さ方向の一端部に設けられている。グリップ部３３は、主体部３１の長さ方向のパイプ連結部３２とは反対側の端部から主体部３１の長さ方向に対して交差する方向に延出している。前方ガード部３４は、主体部３１の長さ方向の中間位置からグリップ部３３と同側に、グリップ部３３に沿って延出している。下方ガード部３５は、グリップ部３３および前方ガード部３４の主体部３１とは反対側同士を連結している。加圧水導入接続部３６は、主体部３１におけるパイプ連結部３２と前方ガード部３４との間から、前方ガード部３４と同側に突出している。 The pipe connecting portion 32 is provided at one end in the length direction of the main body 31. The grip portion 33 extends from the end of the main body portion 31 on the opposite side to the pipe connecting portion 32 in a direction crossing the length direction of the main body portion 31. The front guard portion 34 extends along the grip portion 33 from an intermediate position in the longitudinal direction of the main body portion 31 to the same side as the grip portion 33. The lower guard portion 35 connects the grip portion 33 and the front guard portion 34 on opposite sides of the main body portion 31. The pressurized water introduction connecting portion 36 protrudes to the same side as the front guard portion 34 from between the pipe connecting portion 32 and the front guard portion 34 in the main body portion 31.
　ガン本体２１は、主体部３１におけるグリップ部３３と前方ガード部３４との間から、これらと同側に延出する加圧水供給切替レバー４１を有している。加圧水供給切替レバー４１は、主体部３１に揺動可能に連結されている。ガン本体２１は、加圧水導入接続部３６が、配管３７を介して高圧水ポンプ１３に接続されている。 The gun body 21 has a pressurized water supply switching lever 41 extending from the grip portion 33 and the front guard portion 34 of the main body portion 31 to the same side as these. The pressurized water supply switching lever 41 is swingably connected to the main body 31. The gun body 21 has a pressurized water introduction connection portion 36 connected to the high-pressure water pump 13 via a pipe 37.
　加圧水供給切替レバー４１は、主体部３１内に設けられた加圧水供給切替部４２に含まれる。加圧水供給切替部４２は、加圧水導入接続部３６とパイプ連結部３２との、ガン本体２１内の流路を介しての連通および遮断を切り替える。 The pressurized water supply switching lever 41 is included in the pressurized water supply switching unit 42 provided in the main body 31. The pressurized water supply switching unit 42 switches between communication and blocking between the pressurized water introduction connection unit 36 and the pipe connection unit 32 via a flow path in the gun body 21.
　加圧水供給切替部４２は、加圧水供給切替レバー４１が、前方ガード部３４およびグリップ部３３のうち前方ガード部３４に近づいている状態では、閉状態となる。閉状態の加圧水供給切替部４２は、加圧水導入接続部３６とパイプ連結部３２とのガン本体２１内の流路を介しての連通を遮断する。加圧水供給切替部４２は、この閉状態になるように図示略のスプリングで付勢されている。 The pressurized water supply switching section 42 is closed when the pressurized water supply switching lever 41 is close to the front guard section 34 of the front guard section 34 and the grip section 33. The pressurized water supply switching unit 42 in the closed state cuts off communication between the pressurized water introduction connection unit 36 and the pipe connection unit 32 via the flow path in the gun body 21. The pressurized water supply switching unit 42 is urged by a spring (not shown) so as to be in the closed state.
　加圧水供給切替部４２は、加圧水供給切替レバー４１が、前方ガード部３４およびグリップ部３３のうちグリップ部３３に近づいている状態では、開状態となる。開状態の加圧水供給切替部４２は、加圧水導入接続部３６とパイプ連結部３２とをガン本体２１内の流路を介して連通させる。 The pressurized water supply switching unit 42 is open when the pressurized water supply switching lever 41 is close to the grip 33 of the front guard 34 and the grip 33. The pressurized water supply switching unit 42 in the open state allows the pressurized water introduction connection unit 36 and the pipe connection unit 32 to communicate with each other via a flow path in the gun body 21.
　ガン本体２１は、操作時には、グリップ部３３が作業者の手で握られることになり、この手の指で加圧水供給切替レバー４１が操作されてグリップ部３３側に引かれる。すると、加圧水供給切替部４２は、開状態になり、加圧水導入接続部３６に導入されている高圧水ポンプ１３からの加圧水をパイプ連結部３２に流すことになる。 When the gun body 21 is operated, the grip portion 33 is gripped by the operator's hand, and the pressurized water supply switching lever 41 is operated by the finger of the hand, and is pulled toward the grip portion 33 side. Then, the pressurized water supply switching unit 42 is opened, and pressurized water from the high-pressure water pump 13 introduced into the pressurized water introduction connection unit 36 flows to the pipe connection unit 32.
　また、この加圧水供給切替レバー４１への操作が解除されると、加圧水供給切替部４２は、図示略のスプリングの付勢力で、加圧水供給切替レバー４１を前方ガード部３４側に戻しつつ、加圧水導入接続部３６に導入されている高圧水ポンプ１３の水のパイプ連結部３２への流れを規制する閉状態になる。 When the operation on the pressurized water supply switching lever 41 is released, the pressurized water supply switching unit 42 returns the pressurized water supply switching lever 41 to the front guard unit 34 side by the urging force of a spring (not shown) while introducing the pressurized water. The closed state restricts the flow of the water of the high-pressure water pump 13 introduced into the connection part 36 to the pipe connection part 32.
　ガン本体２１には、パイプ連結部３２にパイプ２２が連結されている。パイプ２２は、直線状部４５と、傾斜部４６とを有している。直線状部４５は、ガン本体２１のパイプ連結部３２から主体部３１の長さ方向の延長線上に直線状に延出している。言い換えれば、ガン本体２１の主体部３１とパイプ２２の直線状部４５とは、連続する直線状をなしている。 The pipe 22 is connected to the pipe connecting portion 32 of the gun body 21. The pipe 22 has a linear portion 45 and an inclined portion 46. The linear portion 45 linearly extends from the pipe connecting portion 32 of the gun body 21 on an extension in the length direction of the main portion 31. In other words, the main body portion 31 of the gun body 21 and the linear portion 45 of the pipe 22 have a continuous linear shape.
　傾斜部４６は、直線状部４５のガン本体２１とは反対側の端部から直線状部４５の延長方向に対し若干傾斜して延出している。傾斜部４６は、直線状部４５の延長方向に対して、主体部３１に対しグリップ部３３が延出する側と同側に位置するように傾斜している。 The inclined portion 46 extends from the end of the linear portion 45 on the opposite side to the gun body 21 while being slightly inclined with respect to the extending direction of the linear portion 45. The inclined portion 46 is inclined with respect to the extension direction of the linear portion 45 so as to be located on the same side as the side on which the grip portion 33 extends with respect to the main body portion 31.
　パイプ２２は、そのガン本体２１とは反対端である先端部が洗浄ノズル２５の加圧水導入口２８に連結されている。すなわち、傾斜部４６の直線状部４５とは反対側の端部が加圧水導入口２８に接続されている。ガン本体２１は、加圧水導入接続部３６からパイプ連結部３２に流れる、高圧水ポンプ１３からの加圧水をパイプ２２を介して加圧水導入口２８に供給する。よって、ガン本体２１の加圧水供給切替部４２は、高圧水ポンプ１３に接続されて高圧水ポンプ１３から洗浄ノズル２５の加圧水導入口２８への加圧水の供給および遮断を切り替える。 The end of the pipe 22 opposite to the gun body 21 is connected to the pressurized water inlet 28 of the cleaning nozzle 25. That is, the end of the inclined portion 46 opposite to the straight portion 45 is connected to the pressurized water inlet 28. The gun body 21 supplies pressurized water from the high-pressure water pump 13 flowing from the pressurized water introduction connection portion 36 to the pipe connection portion 32 to the pressurized water introduction port 28 via the pipe 22. Therefore, the pressurized water supply switching unit 42 of the gun body 21 is connected to the high pressure water pump 13 and switches between supply and cutoff of the pressurized water from the high pressure water pump 13 to the pressurized water inlet 28 of the cleaning nozzle 25.
　ハンドル２３は、円環状のリング部５１と、棒状のハンドル本体部５２と、を有している。リング部５１は、パイプ２２の直線状部４５が内側に挿通されており、この状態で直線状部４５に固定されている。ハンドル本体部５２は、リング部５１に、リング部５１の径方向に沿って外方に延出するように固定されている。パイプ２２の直線状部４５およびガン本体２１の主体部３１に対するグリップ部３３の延出方向と同側に、直線状部４５からハンドル本体部５２が延出している。洗浄ガン１２は、作業者によって、ガン本体２１のグリップ部３３が一方の手で握られ、ハンドル２３のハンドル本体部５２が他方の手で握られて操作される。 The handle 23 has an annular ring portion 51 and a rod-shaped handle main body portion 52. The ring portion 51 has the straight portion 45 of the pipe 22 inserted therein, and is fixed to the straight portion 45 in this state. The handle body 52 is fixed to the ring 51 so as to extend outward in the radial direction of the ring 51. A handle body 52 extends from the straight portion 45 on the same side as the direction in which the grip portion 33 extends with respect to the straight portion 45 of the pipe 22 and the main body 31 of the gun body 21. The operator operates the cleaning gun 12 with the grip 33 of the gun main body 21 held by one hand and the handle main body 52 of the handle 23 held by the other hand.
　洗浄液供給ライン２４は、その長さ方向の一端側が、パイプ２２の直線状部４５のガン本体２１側に、バンド６１で固定されている。洗浄液供給ライン２４は、ガン本体２１側の端部に、洗浄液導入接続部６２を有している。洗浄液導入接続部６２は、ガン本体２１の加圧水導入接続部３６の前に並んで設けられている。洗浄液供給ライン２４は、洗浄液導入接続部６２が配管６６を介して洗浄液貯留タンク１４に接続されている。 One end of the cleaning liquid supply line 24 in the longitudinal direction is fixed to the gun body 21 side of the linear portion 45 of the pipe 22 by a band 61. The cleaning liquid supply line 24 has a cleaning liquid introduction connection portion 62 at the end on the gun body 21 side. The cleaning liquid introduction connection section 62 is provided in front of the pressurized water introduction connection section 36 of the gun body 21. The cleaning liquid supply line 24 has a cleaning liquid introduction connection portion 62 connected to the cleaning liquid storage tank 14 via a pipe 66.
　洗浄液供給ライン２４は、洗浄液導入接続部６２の洗浄液導入接続部６２とは反対側に、洗浄液供給切替レバー６３を含む洗浄液供給切替部６４を有している。洗浄液供給ライン２４は、長さ方向の洗浄液導入接続部６２とは反対側の端部が、洗浄ノズル２５の洗浄液導入口２９に接続されるノズル側接続部６５となっている。 The cleaning liquid supply line 24 has a cleaning liquid supply switching section 64 including a cleaning liquid supply switching lever 63 on the side opposite to the cleaning liquid introduction connection section 62 of the cleaning liquid introduction connection section 62. The cleaning liquid supply line 24 has a nozzle-side connection part 65 connected to the cleaning liquid introduction port 29 of the cleaning nozzle 25 at an end opposite to the cleaning liquid introduction connection part 62 in the longitudinal direction.
　洗浄液供給切替部６４は、洗浄液導入接続部６２とノズル側接続部６５との、洗浄液供給ライン２４内の流路を介しての連通および遮断を切り替える。洗浄液供給切替部６４は、洗浄液供給切替レバー６３がガン本体２１とは反対側に倒されて洗浄液供給ライン２４の延在方向に沿う状態になると、開状態になる。開状態の洗浄液供給切替部６４は、洗浄液導入接続部６２とノズル側接続部６５とを、洗浄液供給ライン２４内の流路を介して連通させる。 (4) The cleaning liquid supply switching unit 64 switches between communication and blocking between the cleaning liquid introduction connection unit 62 and the nozzle side connection unit 65 via the flow path in the cleaning liquid supply line 24. The cleaning liquid supply switching unit 64 is opened when the cleaning liquid supply switching lever 63 is tilted to the side opposite to the gun body 21 and extends along the direction in which the cleaning liquid supply line 24 extends. The cleaning liquid supply switching section 64 in the open state connects the cleaning liquid introduction connection section 62 and the nozzle-side connection section 65 via a flow path in the cleaning liquid supply line 24.
　また、洗浄液供給切替部６４は、洗浄液供給切替レバー６３が洗浄液供給ライン２４の延在方向に対し直交する状態になると、閉状態になる。閉状態の洗浄液供給切替部６４は、洗浄液導入接続部６２とノズル側接続部６５との、洗浄液供給ライン２４内の流路を介しての連通を遮断する。 The cleaning liquid supply switching section 64 is closed when the cleaning liquid supply switching lever 63 is perpendicular to the direction in which the cleaning liquid supply line 24 extends. The cleaning liquid supply switching unit 64 in the closed state interrupts communication between the cleaning liquid introduction connection unit 62 and the nozzle-side connection unit 65 via the flow path in the cleaning liquid supply line 24.
　よって、洗浄液供給切替部６４は、洗浄液貯留タンク１４に接続されて洗浄液貯留タンク１４から洗浄ノズル２５の洗浄液導入口２９への洗浄液の供給および遮断を切り替える。洗浄液供給切替部６４は、洗浄液供給ライン２４の延在方向に対する洗浄液供給切替レバー６３の角度に応じて、洗浄液導入接続部６２とノズル側接続部６５との、洗浄液供給ライン２４内の流路を介しての連通量を全閉から全開までの間で無段階に変更する。 Therefore, the cleaning liquid supply switching unit 64 is connected to the cleaning liquid storage tank 14 and switches between supplying and shutting off the cleaning liquid from the cleaning liquid storage tank 14 to the cleaning liquid inlet 29 of the cleaning nozzle 25. The cleaning liquid supply switching unit 64 controls the flow path in the cleaning liquid supply line 24 between the cleaning liquid introduction connection unit 62 and the nozzle side connection unit 65 according to the angle of the cleaning liquid supply switching lever 63 with respect to the extending direction of the cleaning liquid supply line 24. The amount of communication through is continuously changed from fully closed to fully open.
　洗浄液供給ライン２４は、低剛性の中間部分が、ハンドル２３のリング部５１とハンドル本体部５２との間に支持具７１を介して支持されている。 The cleaning liquid supply line 24 has a low-rigidity intermediate portion supported between the ring portion 51 of the handle 23 and the handle main body 52 via a support 71.
　洗浄ノズル２５は、加圧水導入口２８と洗浄液導入口２９とを有する基端側ノズル部８１と、基端側ノズル部８１に連結される先端側ノズル部８２と、先端側ノズル部８２に連結される外側ガイド部８３と、を有している。基端側ノズル部８１は、パイプ２２に連結される連結ノズル部８５と、先端側ノズル部８２に連結される基端側ノズル部本体８６と、を有している。 The cleaning nozzle 25 is connected to the base side nozzle part 81 having the pressurized water inlet 28 and the cleaning liquid inlet 29, the front side nozzle part 82 connected to the base side nozzle part 81, and the front side nozzle part 82. And an outer guide portion 83. The proximal nozzle section 81 has a connecting nozzle section 85 connected to the pipe 22 and a proximal nozzle section main body 86 connected to the distal nozzle section 82.
　図２に示すように、基端側ノズル部８１の連結ノズル部８５は、連結ボディ３０１と、内部パイプ３０２と、を有している。連結ボディ３０１は、略六角筒状であり、軸方向の一端部に、図１に示すように、パイプ２２の傾斜部４６の直線状部４５とは反対側の先端部に螺合されるネジ穴である加圧水導入口２８が形成されている。加圧水導入口２８が、パイプ２２、ガン本体２１および配管３７を介して高圧水ポンプ１３に接続される。連結ボディ３０１は、傾斜部４６に連結された状態で傾斜部４６の延長方向に延在する。 連結 As shown in FIG. 2, the connection nozzle portion 85 of the base end nozzle portion 81 has a connection body 301 and an internal pipe 302. The connecting body 301 has a substantially hexagonal cylindrical shape, and has a screw screwed to one end in the axial direction thereof, as shown in FIG. 1, to a tip of the inclined portion 46 of the pipe 22 opposite to the straight portion 45. A pressurized water inlet 28 which is a hole is formed. The pressurized water inlet 28 is connected to the high-pressure water pump 13 via the pipe 22, the gun body 21, and the pipe 37. The connection body 301 extends in the extension direction of the inclined portion 46 while being connected to the inclined portion 46.
　図２に示すように、内部パイプ３０２は、円筒状であり、連結ボディ３０１の軸方向の図１に示す加圧水導入口２８とは反対側の端部から連結ボディ３０１の軸方向に沿って加圧水導入口２８とは反対方向に延出する。連結ボディ３０１と内部パイプ３０２とは同軸状に配置されて連結されている。内部パイプ３０２の連結ボディ３０１よりも外側に延出する部分が円筒状の内部延出部３０３となっている。 As shown in FIG. 2, the internal pipe 302 has a cylindrical shape, and pressurized water flows along the axial direction of the connecting body 301 from the end of the connecting body 301 opposite to the pressurized water inlet 28 shown in FIG. 1. It extends in a direction opposite to the inlet 28. The connection body 301 and the internal pipe 302 are coaxially arranged and connected. The portion of the internal pipe 302 extending outside the connection body 301 is a cylindrical internal extension 303.
　連結ボディ３０１には、その内側に、軸方向に貫通する直線状の連結ボディ内流路３１１が形成されている。この基端ボディ内流路３１１の一端部が加圧水導入口２８となっている。基端ボディ内流路３１１は、加圧水導入口２８側よりも内部パイプ３０２側の方が絞られている。また、連結ボディ３０１には、軸方向の加圧水導入口２８とは反対側の外周部にオネジ３１２が形成されている。 The connection body 301 has a linear connection body inside flow path 311 penetrating in the axial direction inside thereof. One end of the flow path 311 in the base body serves as the pressurized water inlet 28. The flow path 311 in the proximal end body is narrowed more on the inner pipe 302 side than on the pressurized water inlet 28 side. Further, a male screw 312 is formed on the outer peripheral portion of the connecting body 301 on the opposite side to the pressurized water inlet 28 in the axial direction.
　内部パイプ３０２内の直線状の内部パイプ内流路３１４は、連結ボディ内流路３１１の延長線上に連結ボディ内流路３１１と連続して設けられている。内部パイプ３０２の連結ボディ３０１とは反対側の端部、すなわち内部パイプ３０２の先端部が内部噴出口３１６となっている。 The straight internal pipe flow path 314 in the internal pipe 302 is provided on the extension of the connection body internal flow path 311 and is continuous with the connection internal body flow path 311. An end of the internal pipe 302 on the opposite side to the connection body 301, that is, a tip of the internal pipe 302 is an internal ejection port 316.
　基端側ノズル部８１の基端側ノズル部本体８６は、基端ボディ９１と、内部パイプ９２と、を有している。基端ボディ９１は、略六角筒状であり、軸方向の一端部に、連結ノズル部８５のオネジ３１２に螺合されるネジ穴３２１が形成されている。 基 The base nozzle body 86 of the base nozzle 81 has a base body 91 and an internal pipe 92. The base end body 91 has a substantially hexagonal cylindrical shape, and has a screw hole 321 that is screwed into the male screw 312 of the connection nozzle portion 85 at one end in the axial direction.
　内部パイプ９２は、円筒状であり、基端ボディ９１の軸方向のネジ穴３２１とは反対側の端部から基端ボディ９１の軸方向に沿ってネジ穴３２１とは反対方向に延出する。基端ボディ９１と内部パイプ９２とは同軸状に配置されて連結されている。内部パイプ９２の基端ボディ９１よりも外側に延出する部分が円筒状の内部延出部９３となっている。 The internal pipe 92 has a cylindrical shape, and extends in the direction opposite to the screw hole 321 along the axial direction of the proximal body 91 from the end of the proximal body 91 opposite to the axial screw hole 321. . The base body 91 and the internal pipe 92 are coaxially arranged and connected. A portion of the internal pipe 92 extending outward from the base body 91 is a cylindrical internal extension 93.
　基端ボディ９１には、その内側に、軸方向に貫通する直線状の基端ボディ内流路１０１が形成されている。この基端ボディ内流路１０１の一端部がネジ穴３２１となっている。また、基端ボディ９１には、図１に示す洗浄液供給ライン２４のノズル側接続部６５に螺合されるネジ穴である洗浄液導入口２９が、図２に示すように、基端ボディ内流路１０１の中間部分に直交するように形成されている。基端ボディ９１には、軸方向のネジ穴３２１とは反対側の外周部にオネジ１０２が形成されている。 The base end body 91 has a straight base end body inner passage 101 penetrating in the axial direction inside thereof. One end of the base body internal flow path 101 is a screw hole 321. The base body 91 is provided with a cleaning liquid inlet 29 which is a screw hole screwed into the nozzle side connection portion 65 of the cleaning liquid supply line 24 shown in FIG. 1, as shown in FIG. It is formed so as to be orthogonal to the middle part of the road 101. A male screw 102 is formed in the proximal end body 91 at an outer peripheral portion opposite to the screw hole 321 in the axial direction.
　基端側ノズル部本体８６のネジ穴３２１に連結ノズル部８５のオネジ３１２が螺合されることになり、これにより、連結ノズル部８５と基端側ノズル部本体８６とが中心軸線を一致させた状態で連結されて基端側ノズル部８１となる。その際に、基端側ノズル部本体８６の基端ボディ内流路１０１内に、連結ノズル部８５の内部パイプ３０２の内部延出部３０３が径方向に隙間をもって挿入される。 The male screw 312 of the connection nozzle portion 85 is screwed into the screw hole 321 of the base end nozzle portion main body 86, whereby the connection nozzle portion 85 and the base end nozzle portion main body 86 are aligned with the center axis. In this state, they are connected to each other to form the base end nozzle section 81. At this time, the internal extension portion 303 of the internal pipe 302 of the connecting nozzle portion 85 is inserted into the flow path 101 in the proximal end body of the proximal end side nozzle portion main body 86 with a gap in the radial direction.
　連結ノズル部８５の内部パイプ３０２の内部噴出口３１６は、基端ボディ内流路１０１の洗浄液導入口２９よりもネジ穴３２１とは反対側に位置している。言い換えれば、連結ノズル部８５の内部パイプ３０２の内部延出部３０３は、基端ボディ内流路１０１の洗浄液導入口２９よりもネジ穴３２１とは反対側まで延出している。 内部 The internal outlet 316 of the internal pipe 302 of the connecting nozzle portion 85 is located on the opposite side of the screw hole 321 from the cleaning liquid inlet 29 of the flow path 101 in the base end body. In other words, the internal extension portion 303 of the internal pipe 302 of the connection nozzle portion 85 extends from the cleaning liquid introduction port 29 of the base end internal body flow path 101 to a side opposite to the screw hole 321.
　内部パイプ９２内の直線状の内部パイプ内流路１０４は、基端ボディ内流路１０１の延長線上に基端ボディ内流路１０１と連続して設けられている。連結ノズル部８５の連結ボディ内流路３１１及び内部パイプ内流路３１４と、基端側ノズル部本体８６の基端ボディ内流路１０１と内部パイプ内流路１０４とが、基端側ノズル部８１を軸方向に直線状に貫通する基端側ノズル部内流路１０５を構成している。この基端側ノズル部内流路１０５に洗浄液導入口２９が直交している。 直線 The straight internal pipe flow path 104 in the internal pipe 92 is provided on the extension of the base body internal flow path 101 and is continuous with the base internal body flow path 101. The flow path 311 in the connection body and the flow path 314 in the internal pipe of the connection nozzle part 85, and the flow path 101 in the base body and the flow path 104 in the internal pipe of the base part 86 of the base side nozzle part are connected to the base side nozzle part. A base-end-side nozzle section inner flow path 105 that penetrates 81 linearly in the axial direction is formed. The cleaning liquid introduction port 29 is orthogonal to the flow path 105 in the base nozzle section.
　内部パイプ９２のネジ穴３２１とは反対側の端部、すなわち内部パイプ９２の先端部が内部噴出口１０６となっている。基端側ノズル部内流路１０５は、長さ方向の一端が連結ノズル部８５の加圧水導入口２８であり、長さ方向の他端が基端側ノズル部本体８６の内部噴出口１０６である。 端 The end of the internal pipe 92 opposite to the screw hole 321, that is, the tip of the internal pipe 92 is the internal outlet 106. One end in the longitudinal direction of the flow path 105 in the proximal end nozzle portion is the pressurized water inlet 28 of the connecting nozzle portion 85, and the other end in the longitudinal direction is the internal outlet 106 of the proximal end nozzle portion main body 86.
　基端側ノズル部８１は、連結ノズル部８５の加圧水導入口２８に図１に示すパイプ２２から導入された加圧水の図２に示す基端側ノズル部内流路１０５での流れで、洗浄液導入口２９に連通する図１に示す洗浄液貯留タンク１４から洗浄液を、エジェクタの原理により吸引し、加圧水と混合して図２に示す内部噴出口１０６から噴出させる。加圧液体である加圧水の流れによって洗浄液を吸引するため、加圧気体の流れによって洗浄液を吸引する場合と比べて吸引力が大きくなり、図１に示す洗浄液供給ライン２４および配管６６が長くなっても洗浄液貯留タンク１４から良好に洗浄液を吸引することができる。 The base-side nozzle portion 81 is provided with a flow of pressurized water introduced from the pipe 22 shown in FIG. The cleaning liquid is sucked from the cleaning liquid storage tank 14 shown in FIG. 1 communicating with the nozzle 29 by the principle of an ejector, mixed with pressurized water, and ejected from the internal outlet 106 shown in FIG. Since the cleaning liquid is sucked by the flow of the pressurized water, which is the pressurized liquid, the suction force is increased as compared with the case where the cleaning liquid is suctioned by the flow of the pressurized gas, and the cleaning liquid supply line 24 and the pipe 66 shown in FIG. Also, the cleaning liquid can be favorably sucked from the cleaning liquid storage tank 14.
　図２に示すように、先端側ノズル部８２は、先端ボディ１２１と、先端パイプ１２２とを有している。先端ボディ１２１には、軸方向の一端部に、基端側ノズル部８１の基端側ノズル部本体８６のオネジ１０２に螺合されるネジ穴１２３が形成されている。先端パイプ１２２は、略円筒状であり、先端ボディ１２１の軸方向のネジ穴１２３とは反対側の端部から先端ボディ１２１の軸方向に沿ってネジ穴１２３とは反対方向に延出する。先端ボディ１２１と先端パイプ１２２とは同軸状に配置されて連結されている。先端パイプ１２２の先端ボディ１２１よりも外側に延出する部分が筒状の先端筒状部１２４（筒状部）となっている。 先端 As shown in FIG. 2, the distal nozzle section 82 has a distal body 121 and a distal pipe 122. The distal end body 121 has a screw hole 123 formed at one end in the axial direction to be screwed into the male screw 102 of the base end nozzle portion main body 86 of the base end nozzle portion 81. The distal end pipe 122 has a substantially cylindrical shape, and extends in an axial direction of the distal end body 121 from an end of the distal end body 121 opposite to the axial screw hole 123 in a direction opposite to the screw hole 123. The tip body 121 and the tip pipe 122 are coaxially arranged and connected. A portion of the tip pipe 122 that extends outside the tip body 121 is a tubular tip tubular portion 124 (tubular portion).
　先端ボディ１２１には、その内側に、軸方向に貫通する直線状の先端ボディ内流路１３１が形成されている。この先端ボディ内流路１３１の一端部はネジ穴１２３によって形成されている。 A linear body 131 in the distal end body that penetrates in the axial direction is formed inside the distal end body 121. One end of the flow path 131 in the distal end body is formed by a screw hole 123.
　先端ボディ１２１には、先端ボディ内流路１３１に交差する直線状の外気取入流路１３２が、先端パイプ１２２とネジ穴１２３との間に形成されている。外気取入流路１３２は、その中心軸線が先端ボディ１２１の中心軸線を含む面に配置されている。外気取入流路１３２は、先端ボディ１２１の径方向における外側ほど、先端ボディ１２１の軸方向におけるネジ穴１２３側に位置するように傾斜している。 A straight outside air intake passage 132 intersecting the inside passage body 131 is formed in the front end body 121 between the front end pipe 122 and the screw hole 123. The outside air intake passage 132 is arranged on a surface whose central axis includes the central axis of the distal end body 121. The outside air intake passage 132 is inclined so that the outer side in the radial direction of the distal end body 121 is located closer to the screw hole 123 in the axial direction of the distal end body 121.
　よって、外気取入流路１３２は、先端ボディ１２１の径方向の外側に開口する外気取入口１３３が、先端ボディ内流路１３１に開口する外気放出口１３４よりも先端ボディ１２１の軸方向におけるネジ穴１２３側に配置されている。このような外気取入流路１３２が、先端側ノズル部８２の周方向に等間隔で複数、具体的には３カ所形成されている。このように先端側ノズル部８２は、外気取入口１３３および外気放出口１３４を含む外気取入流路１３２を有している。 Therefore, the outside air intake passage 132 has a screw hole in the axial direction of the tip body 121 in which the outside air intake 133 opening outward in the radial direction of the tip body 121 is smaller than the outside air discharge opening 134 opening in the tip body inside passage 131. It is arranged on the 123 side. A plurality, specifically, three, of such outside air intake channels 132 are formed at equal intervals in the circumferential direction of the distal end side nozzle portion 82. As described above, the distal end side nozzle portion 82 has the outside air intake passage 132 including the outside air intake 133 and the outside air discharge port 134.
　先端ボディ１２１には、外周部に、先端ボディ１２１の軸方向に延在する直線状の流路溝１４１が形成されている。流路溝１４１は、先端ボディ１２１の軸方向の外気取入口１３３よりも先端筒状部１２４側の中間所定位置から先端ボディ１２１の先端筒状部１２４側の端面まで形成されている。流路溝１４１は、先端ボディ１２１の先端筒状部１２４側の端面に開口している。 A straight channel groove 141 extending in the axial direction of the tip body 121 is formed in the outer peripheral portion of the tip body 121. The flow path groove 141 is formed from a predetermined intermediate position on the distal end tubular portion 124 side to the end cylindrical portion 124 side end surface of the distal end body 121 with respect to the axial outside air intake 133 of the distal end body 121. The flow channel 141 is open at the end face of the tip body 121 on the tip cylindrical portion 124 side.
　図３に示すように、このような流路溝１４１が、先端ボディ１２１の周方向に等間隔で複数、具体的には３カ所形成されている。流路溝１４１は、それぞれが、先端ボディ１２１の周方向に隣り合う図２に示す外気取入流路１３２と外気取入流路１３２との間の中央位置に配置されている。すなわち、外気取入流路１３２と流路溝１４１とが先端ボディ１２１の周方向に交互に等間隔で配置されている。 As shown in FIG. 3, a plurality of, specifically, three, flow passage grooves 141 are formed at equal intervals in the circumferential direction of the distal end body 121. Each of the flow channel grooves 141 is disposed at a central position between the external air intake flow channel 132 shown in FIG. That is, the outside air intake passages 132 and the passage grooves 141 are alternately arranged at equal intervals in the circumferential direction of the distal end body 121.
　図２に示すように、流路溝１４１の一つには、先端ボディ１２１の径方向における深さが、流路溝１４１よりも深い係合溝１４２が形成されている。係合溝１４２は、流路溝１４１のネジ穴１２３側の端部から流路溝１４１の延在方向の中間所定位置まで形成されている。 As shown in FIG. 2, one of the flow grooves 141 is formed with an engagement groove 142 in which the distal body 121 has a radial depth that is greater than the flow groove 141. The engagement groove 142 is formed from the end of the flow channel 141 on the screw hole 123 side to a predetermined intermediate position in the extending direction of the flow channel 141.
　先端ボディ１２１のネジ穴１２３に基端側ノズル部８１の基端側ノズル部本体８６がオネジ１０２において螺合される。その際に、先端ボディ内流路１３１には、基端側ノズル部本体８６の内部延出部９３が、先端ボディ１２１の径方向に隙間をもって挿入される。ネジ穴１２３に基端側ノズル部８１が螺合された取付状態で、内部延出部９３の内部噴出口１０６は、先端ボディ１２１に囲まれる。また、この取付状態で、外気放出口１３４が、先端ボディ１２１の軸方向において、内部延出部９３の内部噴出口１０６よりも、ネジ穴１２３側に配置される。先端側ノズル部８２は、その先端ボディ１２１が、基端側ノズル部８１の内部噴出口１０６を囲んで設けられている。 基 The proximal nozzle portion main body 86 of the proximal nozzle portion 81 is screwed into the screw hole 123 of the distal body 121 with the male screw 102. At this time, the internal extension 93 of the base end side nozzle portion main body 86 is inserted into the distal end body channel 131 with a gap in the radial direction of the distal end body 121. In a mounting state in which the proximal nozzle portion 81 is screwed into the screw hole 123, the internal ejection port 106 of the internal extension portion 93 is surrounded by the distal end body 121. Further, in this mounted state, the outside air discharge port 134 is disposed closer to the screw hole 123 than the internal ejection port 106 of the internal extension 93 in the axial direction of the distal end body 121. The distal end nozzle portion 82 is provided with a distal end body 121 surrounding the internal ejection port 106 of the proximal end nozzle portion 81.
　先端筒状部１２４は、円筒状の先端ノズル本体部１５１（本体部）と、先端ノズル本体部１５１の先端部内に固定された先端部材１５２とを有している。先端部材１５２は、円環状であり、その内周側が先端噴出口１５３となっている。先端ノズル本体部１５１は、一定内径であって一定外径の円筒である。先端部材１５２は、その先端噴出口１５３の内径が、先端ノズル本体部１５１の内径よりも小径となっている。 The distal end tubular portion 124 has a cylindrical distal end nozzle main body 151 (main body) and a distal end member 152 fixed inside the distal end of the distal end nozzle main body 151. The distal end member 152 has an annular shape, and an inner peripheral side thereof serves as a distal end outlet 153. The tip nozzle body 151 is a cylinder having a constant inner diameter and a constant outer diameter. The tip member 152 has an inner diameter of the tip outlet 153 smaller than an inner diameter of the tip nozzle body 151.
　図４に示すように、先端筒状部１２４は、先端噴出口１５３と先端ボディ１２１との間に、上流側壁部１６１と下流側壁部１６２と、を有している。上流側壁部１６１は、下流側壁部１６２よりも先端ボディ１２１側にある。言い換えれば、先端筒状部１２４内での流体の流れ方向において、上流側壁部１６１は、下流側壁部１６２よりも上流側にある。上流側壁部１６１と下流側壁部１６２とは、先端筒状部１２４の周方向における位置を合わせている。 先端 As shown in FIG. 4, the distal end cylindrical portion 124 has an upstream side wall 161 and a downstream side wall 162 between the front end outlet 153 and the front end body 121. The upstream side wall 161 is closer to the distal end body 121 than the downstream side wall 162 is. In other words, the upstream side wall 161 is on the upstream side of the downstream side wall 162 in the flow direction of the fluid in the distal end tubular portion 124. The upstream side wall portion 161 and the downstream side wall portion 162 are aligned with each other in the circumferential direction of the distal end tubular portion 124.
　上流側壁部１６１は、円筒形の先端ノズル本体部１５１から径方向外方かつ先端噴出口１５３側に指向して斜めに突出している。上流側壁部１６１は、略円筒の一部の形状をなして先端ノズル本体部１５１よりも径方向外方に突出している。 The upstream side wall 161 projects obliquely outward from the cylindrical tip nozzle body 151 toward the tip outlet 153. The upstream side wall 161 has a shape of a part of a substantially cylindrical shape, and protrudes radially outward from the tip nozzle body 151.
　下流側壁部１６２は、先端ノズル本体部１５１から、径方向内方かつ先端噴出口１５３とは反対側に指向して斜めに突出している。下流側壁部１６２は、略円筒の一部の形状をなして先端ノズル本体部１５１よりも径方向内方に凹んでいる。 The downstream side wall 162 projects obliquely from the tip nozzle body 151 toward the inside in the radial direction and toward the side opposite to the tip outlet 153. The downstream side wall 162 has a substantially cylindrical shape and is recessed radially inward from the tip nozzle body 151.
　上流側壁部１６１の先端噴出口１５３側の端縁部と、下流側壁部１６２の先端ボディ１２１側の端縁部とが、略円環状に繋がって内側に中間噴出口１６５を形成している。すなわち、中間噴出口１６５は、先端筒状部１２４の軸方向における上流側壁部１６１の先端噴出口１５３側の端縁部と、下流側壁部１６２の先端ボディ１２１側の端縁部とによって形成されている。 (4) The edge of the upstream side wall 161 on the side of the tip outlet 153 and the edge of the downstream side wall 162 on the side of the tip body 121 are connected in a substantially annular shape to form an intermediate outlet 165 inside. That is, the intermediate ejection port 165 is formed by the edge of the upstream side wall 161 in the axial direction of the distal end tubular portion 124 on the tip ejection port 153 side and the edge of the downstream side wall 162 on the tip body 121 side. ing.
　よって、中間噴出口１６５は、先端筒状部１２４の径方向外方かつ先端噴出口１５３側に指向して先端筒状部１２４の軸方向、すなわち先端ノズル本体部１５１の軸方向に対し斜めに開口している。中間噴出口１６５は、この指向方向に見て略円形状をなしている。中間噴出口１６５は、先端筒状部１２４の軸方向の中間位置となる、先端噴出口１５３と先端ボディ１２１との間位置に設けられている。 Therefore, the intermediate ejection port 165 is directed outward in the radial direction of the tip cylindrical portion 124 and toward the tip ejection port 153, and is inclined with respect to the axial direction of the tip tubular portion 124, that is, the axial direction of the tip nozzle body portion 151. It is open. The intermediate outlet 165 has a substantially circular shape when viewed in this direction. The intermediate outlet 165 is provided at a position between the distal end outlet 153 and the distal end body 121 at an intermediate position in the axial direction of the distal end cylindrical portion 124.
　先端パイプ１２２は、円筒形の素材が、円錐状の先端部を有する棒状の工具で斜めに穴開けされることで、上流側壁部１６１および下流側壁部１６２が塑性変形によって形成される。先端パイプ１２２には、中間噴出口１６５が、先端パイプ１２２の外周側から内周側に貫通して形成されている。 In the tip pipe 122, the upstream side wall 161 and the downstream side wall 162 are formed by plastic deformation by obliquely piercing a cylindrical material with a rod-shaped tool having a conical tip. An intermediate ejection port 165 is formed in the distal pipe 122 so as to penetrate from the outer peripheral side to the inner peripheral side of the distal pipe 122.
　先端筒状部１２４には、上記の中間噴出口１６５が、複数、具体的には２カ所、先端筒状部１２４の軸方向における位置を合わせて、先端筒状部１２４の周方向に等間隔で形成されている。 The distal end tubular portion 124 is provided with a plurality of, specifically, two, intermediate outlets 165 at equal intervals in the circumferential direction of the distal end tubular portion 124 by adjusting the position in the axial direction of the distal end tubular portion 124. It is formed with.
　図２に示すように、先端筒状部１２４は、中間噴出口１６５と先端ボディ１２１との間に、上流側壁部１７１と、下流側壁部１７２と、を有している。上流側壁部１７１は、下流側壁部１７２よりも先端ボディ１２１側にある。言い換えれば、先端筒状部１２４内での流体の流れ方向において、上流側壁部１７１は下流側壁部１７２よりも上流側にある。上流側壁部１７１と下流側壁部１７２とは、先端筒状部１２４の周方向における位置を合わせている。 As shown in FIG. 2, the distal end cylindrical portion 124 has an upstream side wall 171 and a downstream side wall 172 between the intermediate ejection port 165 and the distal end body 121. The upstream side wall 171 is closer to the distal end body 121 than the downstream side wall 172 is. In other words, the upstream side wall 171 is located on the upstream side of the downstream side wall 172 in the flow direction of the fluid in the distal end tubular portion 124. The upstream side wall portion 171 and the downstream side wall portion 172 align the position of the distal end tubular portion 124 in the circumferential direction.
　上流側壁部１７１は、円筒形の先端ノズル本体部１５１から径方向内方かつ先端噴出口１５３側に指向して斜めに突出している。上流側壁部１７１は、略円筒の一部の形状をなして先端ノズル本体部１５１よりも径方向内方に凹んでいる。 The upstream side wall 171 projects obliquely inward in the radial direction and toward the tip outlet 153 from the cylindrical tip nozzle body 151. The upstream side wall 171 has a shape of a part of a substantially cylindrical shape and is recessed radially inward from the tip nozzle body 151.
　下流側壁部１７２は、先端ノズル本体部１５１から、径方向外方かつ先端噴出口１５３とは反対側に指向して斜めに突出している。下流側壁部１７２は、略円筒の一部の形状をなして先端ノズル本体部１５１から径方向外方に突出している。 The downstream side wall portion 172 projects obliquely outward from the tip nozzle body 151 in a direction radially outward and opposite to the tip ejection port 153. The downstream side wall portion 172 has a part of a substantially cylindrical shape and protrudes radially outward from the tip nozzle body 151.
　先端筒状部１２４の軸方向における上流側壁部１７１の先端噴出口１５３側の端縁部と、先端筒状部１２４の軸方向における下流側壁部１７２の先端ボディ１２１側の端縁部とが、略円環状に繋がって内側に上流口１７５を形成している。すなわち、上流口１７５は、先端筒状部１２４の軸方向における上流側壁部１７１の先端噴出口１５３側の端縁部と、下流側壁部１７２の先端ボディ１２１側の端縁部とによって形成されている。 An end edge of the upstream side wall portion 171 in the axial direction of the distal end tubular portion 124 on the distal end outlet 153 side, and an end edge of the downstream side wall portion 172 in the axial direction of the distal end cylindrical portion 124 on the distal end body 121 side, An upstream port 175 is formed on the inside by being connected in a substantially annular shape. That is, the upstream port 175 is formed by the end edge of the upstream side wall 171 in the axial direction of the front end cylindrical portion 124 on the front end outlet 153 side and the end edge of the downstream side wall 172 on the front end body 121 side. I have.
　よって、上流口１７５は、先端筒状部１２４の径方向内方かつ先端噴出口１５３側に指向して先端筒状部１２４の軸方向、すなわち先端ノズル本体部１５１の軸方向に対し斜めに開口している。上流口１７５は、この指向方向に見て略円形状をなしている。上流口１７５は、先端筒状部１２４の軸方向の中間となる、中間噴出口１６５と先端ボディ１２１との間位置に設けられている。言い換えれば、先端筒状部１２４には、先端筒状部１２４内の流体の流れ方向における中間噴出口１６５よりも、上流側に上流口１７５が設けられている。 Therefore, the upstream opening 175 opens obliquely in the axial direction of the distal end cylindrical portion 124, that is, in the axial direction of the distal end nozzle main body 151, inwardly in the radial direction of the distal end cylindrical portion 124 and toward the distal end outlet 153. are doing. The upstream port 175 has a substantially circular shape when viewed in this direction. The upstream port 175 is provided at a position between the intermediate jet port 165 and the distal end body 121, which is located in the middle of the distal end cylindrical portion 124 in the axial direction. In other words, the distal end tubular portion 124 is provided with an upstream port 175 on the upstream side of the intermediate ejection port 165 in the flow direction of the fluid in the distal end tubular portion 124.
　先端パイプ１２２は、円筒形の素材が、円錐状の先端部を有する棒状の工具で斜めに穴開けされることで、上流側壁部１７１および下流側壁部１７２が塑性変形によって形成される。先端パイプ１２２には、上流口１７５が、先端パイプ１２２の外周側から内周側に貫通して形成される。 The end pipe 122 is formed by obliquely drilling a cylindrical material with a rod-shaped tool having a conical tip, so that the upstream side wall 171 and the downstream side wall 172 are formed by plastic deformation. An upstream port 175 is formed in the distal pipe 122 so as to penetrate from the outer peripheral side to the inner peripheral side of the distal pipe 122.
　先端筒状部１２４には、上記の上流口１７５が、複数、具体的には２カ所、先端筒状部１２４の軸方向における位置を合わせて、先端筒状部１２４の周方向に等間隔で形成されている。上流口１７５は、それぞれが、先端筒状部１２４の周方向における中間噴出口１６５と中間噴出口１６５との間の中央位置に配置されている。すなわち、中間噴出口１６５と上流口１７５とが先端筒状部１２４の周方向に交互に等間隔で配置されている。 The upstream end 175 is provided with a plurality of, specifically, two, upstream ports 175 in the distal end cylindrical portion 124 at equal intervals in the circumferential direction of the distal end cylindrical portion 124 by adjusting the position in the axial direction of the distal end cylindrical portion 124. Is formed. Each of the upstream ports 175 is disposed at a central position between the intermediate jet ports 165 in the circumferential direction of the distal end cylindrical portion 124. That is, the intermediate ejection ports 165 and the upstream ports 175 are alternately arranged at equal intervals in the circumferential direction of the distal end tubular portion 124.
　先端パイプ１２２内の直線状の先端パイプ内流路１８１は、先端ボディ内流路１３１の延長線上に先端ボディ内流路１３１と連続して設けられている。先端パイプ内流路１８１は、先端ノズル本体部１５１内の直線状の本体内流路１８２と、その延長線上の先端噴出口１５３とからなっている。 直線 The straight end pipe 122 inside the end pipe 122 is provided on an extension of the end body flow path 131 and is continuous with the end body flow path 131. The front-end pipe flow path 181 includes a straight main-body flow path 182 in the front-end nozzle main body 151 and a front-end outlet 153 on an extension thereof.
　先端ボディ内流路１３１と、本体内流路１８２および先端噴出口１５３からなる先端パイプ内流路１８１とが、先端側ノズル部８２を軸方向に直線状に貫通する先端側ノズル部内流路１８５を構成している。先端側ノズル部内流路１８５は、その長さ方向の一端部がネジ穴１２３で形成されており、その長さ方向の他端部が先端噴出口１５３で形成されている。 A front-end body passage 131 and a front-end pipe passage 181 composed of a main-body inside passage 182 and a front-end outlet 153 penetrate the front-end side nozzle portion 82 linearly in the axial direction. Is composed. One end in the length direction of the flow path 185 in the front end nozzle portion is formed by the screw hole 123, and the other end in the length direction is formed by the front end outlet 153.
　中間噴出口１６５および上流口１７５は、本体内流路１８２の先端噴出口１５３よりも、先端側ノズル部内流路１８５の流体の流れ方向における上流側から分岐している。先端筒状部１２４は、その先端の先端噴出口１５３が、先端ノズル本体部１５１内の本体内流路１８２に対し絞られている。中間噴出口１６５および上流口１７５のそれぞれの流路面積は、同等であり、先端噴出口１５３の流路面積よりも大きくなっている。 The intermediate outlet 165 and the upstream outlet 175 are branched from the upstream end in the flow direction of the fluid in the front-end-side nozzle section flow path 185 from the front-end discharge port 153 of the main body flow path 182. The distal end outlet 153 of the distal end cylindrical portion 124 is narrowed to the in-body passage 182 in the distal end nozzle body 151. The flow passage areas of the intermediate outlet 165 and the upstream outlet 175 are equal to each other, and are larger than the flow passage area of the front end outlet 153.
　外側ガイド部８３は、円筒状のガイド部材２０１と、ガイド部材２０１の軸方向の一端側に設けられたストッパ２０２とを有している。ガイド部材２０１は、軸方向の一端側に径方向に貫通するネジ穴２０３が形成されており、軸方向の他端側が外側噴出口２０５となっている。ストッパ２０２は、ガイド部材２０１のネジ穴２０３に螺合されている。 The outer guide portion 83 has a cylindrical guide member 201 and a stopper 202 provided at one end of the guide member 201 in the axial direction. The guide member 201 has a screw hole 203 penetrating in the radial direction at one end in the axial direction, and the other end in the axial direction serves as the outer ejection port 205. The stopper 202 is screwed into a screw hole 203 of the guide member 201.
　外側ガイド部８３には、ガイド部材２０１内の軸方向のネジ穴２０３側に、先端側ノズル部８２が軸方向の先端噴出口１５３側を先頭にして挿入され、先端ボディ１２１が嵌合される。ガイド部材２０１は、先端ボディ１２１に対して軸方向に摺動可能となっている。よって、外側ガイド部８３は、先端側ノズル部８２に対して軸方向に摺動可能に嵌合されている。 In the outer guide portion 83, the tip side nozzle portion 82 is inserted into the screw hole 203 side of the guide member 201 in the axial direction, with the tip end outlet 153 side in the axial direction leading, and the tip body 121 is fitted. . The guide member 201 is slidable in the axial direction with respect to the distal end body 121. Therefore, the outer guide portion 83 is fitted to the tip side nozzle portion 82 so as to be slidable in the axial direction.
　外側ガイド部８３は、ガイド部材２０１が先端ボディ１２１に嵌合された状態で、ストッパ２０２が先端ボディ１２１の係合溝１４２に入り込んでいる。これにより、外側ガイド部８３は、ストッパ２０２が係合溝１４２内で係合溝１４２の延在方向に移動し、この範囲で、先端側ノズル部８２に対して摺動可能となっている。 In the outer guide portion 83, the stopper 202 is inserted into the engagement groove 142 of the distal end body 121 with the guide member 201 fitted in the distal end body 121. As a result, the outer guide portion 83 allows the stopper 202 to move within the engagement groove 142 in the extending direction of the engagement groove 142, and is slidable with respect to the distal end side nozzle portion 82 in this range.
　ここで、ストッパ２０２は、ネジ穴２０３への螺合量の調整により、係合溝１４２の底部に押し付けられると、外側ガイド部８３の先端側ノズル部８２に対する摺動を規制し、外側ガイド部８３を先端側ノズル部８２に固定した状態になる。ストッパ２０２が、係合溝１４２の底部から若干離間すると、外側ガイド部８３は、ストッパ２０２を係合溝１４２内で移動させながら先端側ノズル部８２に対して摺動可能となる。ストッパ２０２が、ガイド部材２０１の内周面よりもガイド部材２０１の径方向における外側に位置すると、外側ガイド部８３は、先端側ノズル部８２から取り外し可能となる。 Here, when the stopper 202 is pressed against the bottom of the engagement groove 142 by adjusting the screwing amount into the screw hole 203, the stopper 202 regulates the sliding of the outer guide portion 83 with respect to the tip side nozzle portion 82, and the outer guide portion 83 is fixed to the tip side nozzle portion 82. When the stopper 202 is slightly separated from the bottom of the engagement groove 142, the outer guide portion 83 can slide with respect to the distal end nozzle portion 82 while moving the stopper 202 within the engagement groove 142. When the stopper 202 is located outside the inner peripheral surface of the guide member 201 in the radial direction of the guide member 201, the outer guide portion 83 can be removed from the tip side nozzle portion 82.
　洗浄ノズル２５は、ストッパ２０２を係合溝１４２内に配置した状態で使用される。この使用状態で、外側ガイド部８３は、先端側ノズル部８２の先端筒状部１２４を囲んで設けられる。また、この使用状態で、外側ガイド部８３は、先端側ノズル部８２の先端筒状部１２４および先端ボディ１２１との間に、外側噴出流路２１１を形成する。外側噴出流路２１１は、一端が外側噴出口２０５であり、外側噴出口２０５において洗浄ノズル２５の外部に開口する。 The cleaning nozzle 25 is used in a state where the stopper 202 is arranged in the engagement groove 142. In this use state, the outer guide portion 83 is provided so as to surround the distal end tubular portion 124 of the distal end side nozzle portion 82. Further, in this use state, the outer guide portion 83 forms an outer ejection flow path 211 between the distal end tubular portion 124 of the distal end side nozzle portion 82 and the distal end body 121. One end of the outer ejection flow path 211 is an outer ejection port 205, and the outer ejection port 205 opens outside the cleaning nozzle 25 at the outer ejection port 205.
　なお、この使用状態で、外側ガイド部８３は、先端側ノズル部８２の外気取入口１３３を覆うことはない。すなわち、この使用状態で、外気取入流路１３２は、洗浄ノズル２５における外面に常時開口することになる。また、この使用状態で、先端ボディ１２１に形成された流路溝１４１は、外側ガイド部８３で覆われており、外側ガイド部８３の位置によって、図２に示すように全体が外側ガイド部８３で覆われたり、図４に示すようにネジ穴１２３側の一部が外側ガイド部８３では覆われない状態となる。 In this use state, the outer guide portion 83 does not cover the outside air intake 133 of the distal end nozzle portion 82. That is, in this use state, the outside air intake channel 132 is always open to the outer surface of the cleaning nozzle 25. In this use state, the flow path groove 141 formed in the distal end body 121 is covered with the outer guide portion 83, and depending on the position of the outer guide portion 83, as shown in FIG. 4 or a part on the screw hole 123 side is not covered with the outer guide portion 83 as shown in FIG.
　外側噴出流路２１１は、先端ボディ１２１に形成された流路溝１４１内の外気導入路２１２に常時連通する。外気導入路２１２は、流路溝１４１が外側ガイド部８３よりも軸方向の外側に位置すると、外側噴出流路２１１の外側噴出口２０５とは反対側の端部を洗浄ノズル２５の外部に開口させる。この状態で、外側噴出流路２１１は、外側噴出口２０５とは反対側の端部においても外気導入路２１２を介して洗浄ノズル２５の外部に連通する。よって、外気導入路２１２は、先端筒状部１２４と外側ガイド部８３との間の外側噴出流路２１１に外側噴出口２０５とは反対側から外気を導入可能である。 The outer ejection passage 211 is always in communication with the outside air introduction passage 212 in the passage groove 141 formed in the tip body 121. When the channel groove 141 is located outside the outer guide portion 83 in the axial direction, the outside air introduction passage 212 opens the end of the outer ejection passage 211 on the side opposite to the outer ejection port 205 to the outside of the cleaning nozzle 25. Let it. In this state, the outer ejection flow passage 211 communicates with the outside of the cleaning nozzle 25 via the outside air introduction passage 212 even at the end opposite to the outer ejection port 205. Therefore, the outside air introduction passage 212 can introduce outside air into the outside ejection passage 211 between the distal end cylindrical portion 124 and the outside guide portion 83 from the side opposite to the outside ejection port 205.
　外側ガイド部８３は、図２に示すように、ストッパ２０２を係合溝１４２の先端噴出口１５３とは反対側の端部に当接させた後退状態では、先端側ノズル部８２の先端筒状部１２４を外側噴出口２０５から突出させる。この後退状態では、先端筒状部１２４の先端噴出口１５３は、外側噴出口２０５よりも外側に位置する。また、この後退状態では、流路溝１４１は、全体が外側ガイド部８３で覆われた状態になり、外気導入路２１２は、外側噴出流路２１１への外側噴出口２０５とは反対側からの外気の導入を抑制する状態となる。 As shown in FIG. 2, the outer guide portion 83 is in a retracted state in which the stopper 202 is in contact with the end of the engagement groove 142 on the side opposite to the distal end jet port 153, and the distal end nozzle portion 82 has a cylindrical shape. The part 124 protrudes from the outer jet 205. In the retracted state, the distal end outlet 153 of the distal end tubular portion 124 is located outside the outer outlet 205. In this retreating state, the flow channel 141 is entirely covered with the outer guide portion 83, and the outside air introduction path 212 extends from the side opposite to the outer jet port 205 to the outer jet channel 211. It is in a state where the introduction of outside air is suppressed.
　外側ガイド部８３は、図４に示すように、ストッパ２０２を係合溝１４２の先端噴出口１５３側の端部に当接させた前進状態では、先端側ノズル部８２の先端筒状部１２４を、後退状態よりも短い長さで外側噴出口２０５から外側に突出させる。この前進状態では、先端筒状部１２４の先端噴出口１５３は、外側噴出口２０５と軸方向の位置が略一致する。また、この前進状態では、流路溝１４１は、ネジ穴１２３側の一部が外側ガイド部８３よりも外側に露出する状態となる。その結果、外気導入路２１２は、外側噴出流路２１１に外側噴出口２０５とは反対側から外気を導入可能な状態となる。 As shown in FIG. 4, the outer guide portion 83 pushes the distal end tubular portion 124 of the distal end nozzle portion 82 in the forward state in which the stopper 202 is in contact with the end of the engagement groove 142 on the distal end outlet 153 side. , And protrude outward from the outer ejection port 205 with a length shorter than the retracted state. In this forward state, the tip ejection port 153 of the tip tubular portion 124 substantially coincides with the outer ejection port 205 in the axial position. In this forward state, a part of the flow channel 141 on the screw hole 123 side is exposed outside the outer guide portion 83. As a result, the outside air introduction passage 212 is in a state where outside air can be introduced into the outside ejection channel 211 from the side opposite to the outside ejection port 205.
　なお、先端側ノズル部８２のストッパ２０２を係合溝１４２内に配置した使用状態にあれば、先端側ノズル部８２の中間噴出口１６５および上流口１７５は、常に外側噴出流路２１１の範囲内にある。言い換えれば、使用状態にある洗浄ノズル２５は、先端側ノズル部８２の中間噴出口１６５および上流口１７５が、外側ガイド部８３と、洗浄ノズル２５の軸方向における位置を重ね合わせている。 When the stopper 202 of the tip side nozzle portion 82 is used in a state where the stopper 202 is disposed in the engagement groove 142, the intermediate ejection port 165 and the upstream port 175 of the tip side nozzle portion 82 are always within the range of the outer ejection channel 211. It is in. In other words, in the cleaning nozzle 25 in the used state, the intermediate ejection port 165 and the upstream port 175 of the tip side nozzle portion 82 overlap the outer guide portion 83 with the position of the cleaning nozzle 25 in the axial direction.
　以上の構成の洗浄装置１１で洗浄対象物を洗浄する場合、作業者は、洗浄液供給切替レバー６３で洗浄液供給切替部６４を開状態とし、洗浄ノズル２５の先端噴出口１５３および外側噴出口２０５を洗浄対象物に向けた状態として、ガン本体２１のグリップ部３３を把持して加圧水供給切替レバー４１を引く。すると、洗浄ノズル２５には、加圧水が基端側ノズル部８１の連結ノズル部８５の加圧水導入口２８に導入されて内部噴出口３１６から、基端側ノズル部本体８６の基端ボディ内流路１０１内に噴出することになり、基端ボディ内流路１０１から内部パイプ内流路１０４内を内部噴出口１０６に向けて流れることになる。 When cleaning an object to be cleaned with the cleaning device 11 having the above configuration, the operator sets the cleaning liquid supply switching unit 64 to the open state with the cleaning liquid supply switching lever 63, and closes the front end outlet 153 and the outer outlet 205 of the cleaning nozzle 25. In a state of facing the cleaning object, the grip portion 33 of the gun body 21 is gripped and the pressurized water supply switching lever 41 is pulled. Then, pressurized water is introduced into the cleaning nozzle 25 into the pressurized water inlet 28 of the connecting nozzle portion 85 of the proximal nozzle portion 81, and flows through the internal outlet 316 into the flow path in the proximal body of the proximal nozzle portion main body 86. Accordingly, the gas flows into the inner pipe 101 from the base body inner flow path 101 and flows toward the inner jet port 106.
　基端側ノズル部８１は、加圧水導入口２８に導入された加圧水の内部噴出口３１６から噴出した後の内部噴出口１０６に向けた流れで、エジェクタの原理により洗浄液貯留タンク１４から洗浄液を洗浄液導入口２９に吸引して基端側ノズル部内流路１０５で加圧水と混合して内部噴出口１０６から噴出させる。このように基端側ノズル部８１の内部噴出口１０６から噴出する加圧水と洗浄液との混合液体が、先端側ノズル部８２の先端ボディ内流路１３１に噴出されて先端ボディ内流路１３１を先端パイプ内流路１８１に向けて流れることになる。 The base side nozzle section 81 introduces the cleaning liquid from the cleaning liquid storage tank 14 by the principle of an ejector with the flow of the pressurized water introduced into the pressurized water introduction port 28 toward the internal jet port 106 after being jetted from the internal jet port 316. It is sucked into the port 29 and mixed with the pressurized water in the flow path 105 in the base side nozzle portion and jetted from the internal jet port 106. As described above, the mixed liquid of the pressurized water and the cleaning liquid spouted from the internal spout 106 of the base end nozzle portion 81 is spouted into the flow passage 131 in the front end body of the front end nozzle portion 82 to cause the front end flow passage 131 in the front end body to move forward It will flow toward the flow path 181 in the pipe.
　すると、先端側ノズル部８２は、このように基端側ノズル部８１の内部噴出口１０６から噴出された、加圧水と洗浄液との混合液体の先端ボディ内流路１３１での流れで、エジェクタの原理により、外気取入口１３３から外気取入流路１３２に外気を吸引して、外気放出口１３４から先端ボディ内流路１３１に放出させる。そして、先端側ノズル部８２は、取り入れた外気と混合液体とを先端ボディ内流路１３１で混合して泡状体にして、本体内流路１８２内で流し、先端噴出口１５３から噴出させる。 Then, the distal side nozzle portion 82 flows the mixed liquid of the pressurized water and the cleaning liquid in the distal end body flow path 131 thus ejected from the internal outlet 106 of the proximal side nozzle portion 81 by the principle of the ejector. Thereby, the outside air is sucked into the outside air intake passage 132 from the outside air intake 133 and is discharged from the outside air discharge port 134 to the front body flow passage 131. Then, the tip side nozzle section 82 mixes the taken-in outside air and the mixed liquid in the tip body internal flow path 131 to form a foam, flows in the main body internal flow path 182, and ejects it from the front end outlet 153.
　その際に、先端噴出口１５３が、それよりも上流側の本体内流路１８２よりも絞られているため、泡状体は、複数の中間噴出口１６５からも噴出する。すなわち、先端側ノズル部８２は、泡状体を先端筒状部１２４の先端の絞られた先端噴出口１５３および先端筒状部１２４の軸方向中間の中間噴出口１６５から噴出させる。 際 At this time, since the front end outlet 153 is narrowed more than the main body internal flow path 182 on the upstream side, the foam is also discharged from the plurality of intermediate outlets 165. In other words, the distal end nozzle 82 causes the foam to be ejected from the distal end outlet 153 in which the distal end of the distal end cylindrical portion 124 is narrowed and the intermediate outlet 165 axially intermediate of the distal end cylindrical portion 124.
　このように中間噴出口１６５から噴出した泡状体は、外側ガイド部８３内の外側噴出流路２１１内を通って外側噴出口２０５から噴出する。すなわち、外側ガイド部８３は、中間噴出口１６５から噴出された泡状体を外側噴出口２０５から洗浄ノズル２５の外部に噴出させる。 泡 The foam ejected from the intermediate ejection port 165 in this manner passes through the outside ejection channel 211 in the outside guide portion 83 and is ejected from the outside ejection port 205. That is, the outer guide portion 83 causes the foam ejected from the intermediate ejection port 165 to be ejected from the outer ejection port 205 to the outside of the cleaning nozzle 25.
　このとき、外気導入路２１２が、外側噴出流路２１１に外側噴出口２０５とは反対側から外気を導入可能な状態となっていれば、中間噴出口１６５から噴出し外側噴出流路２１１を流れて外側噴出口２０５から噴出する泡状体の流れで、外気導入路２１２から外側噴出流路２１１に洗浄ノズル２５の外の空気を吸引することになり、泡状体に外側噴出流路２１１内でさらに空気を混合して外側噴出口２０５から噴出させることになる。加えて、外気導入路２１２で外側噴出流路２１１に導入された空気は、先端ノズル本体部１５１内の本体内流路１８２で流れる泡状体の流れで上流口１７５を介して本体内流路１８２内に導入されて泡状体に混合される。 At this time, if the outside air introduction passage 212 is in a state in which outside air can be introduced into the outside ejection passage 211 from the side opposite to the outside ejection outlet 205, the outside air introduction passage 212 ejects from the intermediate ejection outlet 165 and flows through the outside ejection passage 211. With the flow of the foam ejected from the outside ejection port 205, the air outside the washing nozzle 25 is sucked from the outside air introduction path 212 to the outside ejection channel 211, and the foam is injected into the outside ejection channel 211. Then, air is further mixed and jetted from the outer jet port 205. In addition, the air introduced into the outer ejection channel 211 in the outside air introduction channel 212 flows through the upstream port 175 through the upstream port 175 due to the flow of the foam flowing in the internal channel 182 in the tip nozzle main body 151. 182 and mixed into a foam.
　このようにして、空気を十分に含んで発泡したムース状の泡状体が、先端噴出口１５３および外側噴出口２０５から噴出する。これにより、洗浄ノズル２５から洗浄対象物に吹き付けられた泡状体は、洗浄対象物への密着性が高まり、洗浄対象物へ留まる時間が長くなって、より洗浄効果が高まることになる。 ム ー In this way, the mousse-like foam that has been sufficiently filled with air is blown out from the front end outlet 153 and the outer outlet 205. Thus, the foam blown from the cleaning nozzle 25 onto the object to be cleaned has an improved adhesion to the object to be cleaned, and a longer time for staying on the object to be cleaned, so that the cleaning effect is further enhanced.
　ここで、外側ガイド部８３を前進状態にすると、洗浄ノズル２５の外側ガイド部８３の外側噴出口２０５から噴出する泡状体は、狭い範囲にまとまって噴出することになる。外側ガイド部８３を後退状態にすると、外側噴出口２０５から噴出する泡状体は、広い範囲に広がって噴出することになる。このようにして、外側ガイド部８３を先端側ノズル部８２に対して摺動させることで、外側噴出口２０５から噴出する泡状体の噴出パターンを狭い状態から広い状態に連続的に変化させることができる。 Here, when the outer guide portion 83 is set in the forward state, the foams ejected from the outer ejection port 205 of the outer guide portion 83 of the cleaning nozzle 25 are ejected collectively in a narrow range. When the outer guide portion 83 is set in the retracted state, the foam ejected from the outer ejection port 205 spreads over a wide range and is ejected. In this manner, by sliding the outer guide portion 83 with respect to the distal end nozzle portion 82, the ejection pattern of the foam ejected from the outer ejection port 205 is continuously changed from a narrow state to a wide state. Can be.
　また、洗浄液供給切替レバー６３で洗浄液供給切替部６４の開弁量を調整することで、加圧水に混ざる洗浄液の流量を調整することができる。よって、先端噴出口１５３および外側噴出口２０５から噴出する泡状体の洗浄液の濃度を調整することができることになり、発泡状態等を調整することができることになる。 (4) By adjusting the valve opening amount of the cleaning liquid supply switching unit 64 with the cleaning liquid supply switching lever 63, the flow rate of the cleaning liquid mixed with the pressurized water can be adjusted. Therefore, it is possible to adjust the concentration of the cleaning liquid of the foam that is ejected from the tip ejection port 153 and the outer ejection port 205, and it is possible to adjust the foaming state and the like.
　また、洗浄液供給切替レバー６３で洗浄液供給切替部６４を全閉状態にすれば、洗浄液が洗浄ノズル２５に導入されない。その結果、洗浄ノズル２５では、加圧水のみが空気を多く含んで先端噴出口１５３および外側噴出口２０５から噴出することになる。よって、噴出する加圧水の洗浄対象物からの跳ね返りを抑制することができる。 If the cleaning liquid supply switching unit 64 is fully closed by the cleaning liquid supply switching lever 63, the cleaning liquid is not introduced into the cleaning nozzle 25. As a result, in the cleaning nozzle 25, only the pressurized water contains a large amount of air and is jetted from the front jet port 153 and the outer jet port 205. Therefore, it is possible to suppress the rebound of the jetted pressurized water from the object to be washed.
　以上に述べた洗浄ノズル２５は、基端側ノズル部８１が、高圧水ポンプ１３に接続された加圧水導入口２８に導入される加圧水の流れで、洗浄液導入口２９に接続された洗浄液貯留タンク１４から洗浄液を吸引して加圧水と混合して内部噴出口１０６から噴出させる。すると、内部噴出口１０６を囲んで設けられた先端側ノズル部８２は、内部噴出口１０６から噴出された洗浄液と加圧水との混合液体の流れで外気取入口１３３から外気を吸引して、洗浄液と加圧水との混合液体に混合し泡状体にして先端筒状部１２４の先端の絞られた先端噴出口１５３および先端筒状部１２４の軸方向中間の中間噴出口１６５から噴出させる。すると、先端筒状部１２４を囲んで設けられた外側ガイド部８３が、中間噴出口１６５から噴出された泡状体を外側噴出口２０５から噴出させる。このとき、先端筒状部１２４と外側ガイド部８３との間の外側噴出流路２１１に、外側噴出口２０５とは反対側から外気導入路２１２を介して空気を吸い込むことになり、泡状体にさらに空気を含ませることができる。したがって、洗浄液と水との混合液を十分に発泡させることが可能となる。 In the cleaning nozzle 25 described above, the base-side nozzle portion 81 uses the flow of pressurized water introduced into the pressurized water inlet 28 connected to the high-pressure water pump 13, and the cleaning liquid storage tank 14 connected to the cleaning liquid inlet 29. The cleaning liquid is sucked from the nozzle, mixed with the pressurized water, and ejected from the internal outlet 106. Then, the tip side nozzle portion 82 provided surrounding the internal ejection port 106 sucks outside air from the outside air inlet 133 by the flow of the mixed liquid of the cleaning liquid and the pressurized water ejected from the internal ejection port 106, and The mixture is mixed with the liquid mixed with the pressurized water and made into a foam, and is ejected from the tip end ejection port 153 in which the tip end of the tip end tubular section 124 is narrowed and the intermediate ejection port 165 axially intermediate of the tip end tubular section 124. Then, the outer guide portion 83 provided so as to surround the distal end cylindrical portion 124 causes the foam ejected from the intermediate outlet 165 to be ejected from the outer outlet 205. At this time, air is sucked into the outside ejection passage 211 between the distal end tubular portion 124 and the outside guide portion 83 from the side opposite to the outside ejection port 205 via the outside air introduction passage 212, and Can be further aerated. Therefore, it is possible to sufficiently foam the mixed liquid of the cleaning liquid and the water.
　また、中間噴出口１６５は、先端筒状部１２４の径方向外方かつ先端噴出口１５３側すなわち外側噴出口２０５側に指向して先端筒状部１２４の軸方向に対し斜めに開口している。このため、中間噴出口１６５から噴出された泡状体を良好に外側噴出口２０５から噴出させることができる。 Further, the intermediate ejection port 165 opens obliquely with respect to the axial direction of the tip tubular portion 124 so as to be directed radially outward of the tip tubular portion 124 and toward the tip ejection port 153, that is, toward the outer ejection port 205. . Thus, the foam ejected from the intermediate ejection port 165 can be favorably ejected from the outer ejection port 205.
　また、中間噴出口１６５は、先端筒状部１２４の筒状の先端ノズル本体部１５１から、径方向外方かつ先端噴出口１５３側すなわち外側噴出口２０５側に指向して斜めに突出する上流側壁部１６１と、先端ノズル本体部１５１から、径方向内方かつ先端噴出口１５３とは反対側すなわち外側噴出口２０５とは反対側に指向して斜めに突出する下流側壁部１６２と、により形成されている。このため、下流側壁部１６２が本体内流路１８２から外側噴出流路２１１の外側噴出口２０５に向けて泡状体を案内することになる。また、上流側壁部１６１が外側噴出流路２１１内で流れる空気を、外側ガイド部８３の内周面に衝突する方向に流すことになり、よって空気がより泡状体に混ざりやすくなる。 The intermediate jet port 165 is an upstream side wall that projects obliquely outward from the cylindrical tip nozzle body portion 151 of the tip tubular portion 124 toward the tip jet port 153 side, that is, the outside jet port 205 side. And a downstream side wall portion 162 projecting obliquely from the tip nozzle body portion 151 in a radially inward direction and opposite to the tip ejection port 153, that is, opposite to the outer ejection port 205. ing. For this reason, the downstream side wall portion 162 guides the foam from the inner main body flow path 182 to the outer jet outlet 205 of the outer jet flow path 211. In addition, the air flowing in the outer ejection passage 211 from the upstream side wall portion 161 flows in a direction in which the air collides with the inner peripheral surface of the outer guide portion 83, so that the air is more easily mixed with the foam.
　また、先端筒状部１２４には、中間噴出口１６５よりも上流側に、先端筒状部１２４の径方向内方かつ先端噴出口１５３側に指向して先端筒状部１２４の軸方向に対し斜めに開口する上流口１７５が設けられている。このため、外側噴出流路２１１内で流れる空気を先端筒状部１２４内の本体内流路１８２に導入して、本体内流路１８２を流れる泡状体に混ぜることができる。 In addition, the distal end cylindrical portion 124 is directed to the radially inward direction of the distal end cylindrical portion 124 and the distal end outlet 153 side on the upstream side of the intermediate outlet 165 with respect to the axial direction of the distal end cylindrical portion 124. An upstream port 175 that opens diagonally is provided. For this reason, the air flowing in the outer ejection flow path 211 can be introduced into the main body flow path 182 in the distal end tubular portion 124 and mixed with the foam flowing in the main body flow path 182.
　また、上流口１７５は、先端筒状部１２４の筒状の先端ノズル本体部１５１から、径方向内方かつ先端噴出口１５３側に指向して斜めに突出する上流側壁部１７１と、先端ノズル本体部１５１から、径方向外方かつ先端噴出口１５３とは反対側に指向して斜めに突出する下流側壁部１７２と、により形成されている。このため、下流側壁部１７２が、外側噴出流路２１１から本体内流路１８２に空気を案内することになる。また、上流側壁部１７１が本体内流路１８２を絞ることになって、本体内流路１８２内で流れる泡状体の流れを乱すことになり、泡状体に上流口１７５からの空気が混ざりやすくなる。 Further, the upstream port 175 has an upstream side wall portion 171 projecting obliquely inward in the radial direction and toward the tip ejection port 153 from the tubular tip nozzle body portion 151 of the tip tubular portion 124; And a downstream side wall portion 172 that projects obliquely outward from the portion 151 in the radial direction and on the opposite side to the tip ejection port 153. Therefore, the downstream side wall portion 172 guides air from the outer ejection flow passage 211 to the main body flow passage 182. Further, the upstream side wall portion 171 narrows the flow path 182 in the main body, disturbing the flow of the foam flowing in the flow path 182 in the main body, and the air from the upstream port 175 is mixed with the foam. It will be easier.
　また、先端筒状部１２４には、その強度を低下させることになる中間噴出口１６５と上流口１７５とが、先端筒状部１２４の周方向に交互に等間隔で形成されているため、特定方向に先端筒状部１２４の強度が低下してしまうことを抑制することができる。 In addition, since the intermediate outlet 165 and the upstream port 175 whose strength is to be reduced are alternately formed at equal intervals in the circumferential direction of the distal end cylindrical portion 124 in the distal end cylindrical portion 124, It is possible to prevent the strength of the distal end cylindrical portion 124 from decreasing in the direction.
　上記した洗浄ノズル、洗浄ガンおよび洗浄装置によれば、洗浄液と水との混合液を十分に発泡させることが可能となる。 According to the above-described cleaning nozzle, cleaning gun, and cleaning device, it is possible to sufficiently foam a mixture of the cleaning liquid and water.
　１１　洗浄装置
　１２　洗浄ガン
　１３　高圧水ポンプ（加圧水供給源）
　１４　洗浄液貯留タンク（洗浄液供給源）
　２５　洗浄ノズル
　２８　加圧水導入口
　２９　洗浄液導入口
　４２　加圧水供給切替部
　６４　洗浄液供給切替部
　８１　基端側ノズル部
　８２　先端側ノズル部
　８３　外側ガイド部
　１０６　内部噴出口
　１２４　先端筒状部（筒状部）
　１３３　外気取入口
　１５１　先端ノズル本体部（本体部）
　１５３　先端噴出口
　１６１　上流側壁部
　１６２　下流側壁部
　１６５　中間噴出口
　１７１　上流側壁部
　１７２　下流側壁部
　１７５　上流口
　２０５　外側噴出口
　２１２　外気導入路 11 Cleaning device 12 Cleaning gun 13 High pressure water pump (Pressure water supply source)
14 Cleaning liquid storage tank (cleaning liquid supply source)
Reference Signs List 25 cleaning nozzle 28 pressurized water introduction port 29 cleaning liquid introduction port 42 pressurized water supply switching section 64 cleaning liquid supply switching section 81 base end side nozzle section 82 tip side nozzle section 83 outer guide section 106 internal ejection port 124 tip end cylindrical part (cylindrical part)
133 outside air inlet 151 tip nozzle body (body)
153 Front jet port 161 Upstream side wall section 162 Downstream side wall section 165 Intermediate jet port 171 Upstream side wall section 172 Downstream side wall section 175 Upstream port 205 Outside jet port 212 Outside air introduction path

Claims (7)

  1. 　加圧水供給源に接続される加圧水導入口および洗浄液供給源に接続される洗浄液導入口を有し、前記加圧水導入口に導入された加圧水の流れで前記洗浄液導入口に接続された洗浄液供給源から洗浄液を吸引して前記加圧水と混合して内部噴出口から噴出させる基端側ノズル部と、
    　外気取入口を有し、前記内部噴出口を囲んで設けられ、該内部噴出口から噴出された液体の流れで前記外気取入口から外気を吸引して前記液体と混合し泡状体にして筒状部の先端の絞られた先端噴出口および前記筒状部の軸方向中間の中間噴出口から噴出させる先端側ノズル部と、
    　前記筒状部を囲んで設けられ、前記中間噴出口から噴出された泡状体を外側噴出口から噴出させる外側ガイド部と、
    　前記筒状部と前記外側ガイド部との間に前記外側噴出口とは反対側から外気を導入可能な外気導入路と、を有する洗浄ノズル。     A cleaning liquid inlet having a pressurized water inlet connected to the pressurized water supply source and a cleaning liquid inlet connected to the cleaning liquid supply source, and a cleaning liquid supplied from the cleaning liquid supply connected to the cleaning liquid inlet through the flow of the pressurized water introduced into the pressurized water inlet. A base end side nozzle section for sucking and mixing with the pressurized water and jetting from the internal jet port,
    A cylinder having an outside air intake, provided around the internal ejection port, sucking outside air from the outside air intake with a flow of the liquid ejected from the internal ejection port, and mixing with the liquid to form a foam. A tip-side nozzle portion that is ejected from a narrowed-end tip ejection port and an axially intermediate intermediate ejection port of the cylindrical portion,
    An outer guide portion provided around the cylindrical portion and configured to eject the foam ejected from the intermediate ejection port from the outside ejection port,
    A washing nozzle having an outside air introduction passage between the cylindrical portion and the outside guide portion, which can introduce outside air from a side opposite to the outside ejection port.
  2. 　前記中間噴出口は、前記筒状部の径方向外方かつ前記先端噴出口側に指向して前記筒状部の軸方向に対し斜めに開口している、請求項１に記載の洗浄ノズル。 2. The cleaning nozzle according to claim 1, wherein the intermediate ejection port is opened obliquely with respect to the axial direction of the tubular portion so as to be directed radially outward of the tubular portion and toward the tip ejection port.
  3. 　前記中間噴出口は、前記筒状部の筒状の本体部から、径方向外方かつ前記先端噴出口側に指向して斜めに突出する上流側壁部と、前記本体部から、径方向内方かつ前記先端噴出口とは反対側に指向して斜めに突出する下流側壁部と、により形成されている、請求項２に記載の洗浄ノズル。 The intermediate outlet is an upstream side wall portion obliquely protruding radially outward from the cylindrical main body of the cylindrical portion toward the tip outlet side, and a radial inward from the main body. The cleaning nozzle according to claim 2, further comprising: a downstream side wall that projects obliquely in a direction opposite to the tip ejection port.
  4. 　前記筒状部には、前記中間噴出口よりも上流側に、前記筒状部の径方向内方かつ前記先端噴出口側に指向して前記筒状部の軸方向に対し斜めに開口する上流口が、設けられている、請求項１から３のいずれか一項に記載の洗浄ノズル。 The cylindrical portion has an upstream opening obliquely with respect to the axial direction of the cylindrical portion toward the upstream side of the intermediate outlet and radially inward of the cylindrical portion and toward the tip outlet side. The cleaning nozzle according to any one of claims 1 to 3, wherein a mouth is provided.
  5. 　前記上流口は、前記筒状部の筒状の本体部から、径方向内方かつ前記先端噴出口側に指向して斜めに突出する上流側壁部と、前記本体部から、径方向外方かつ前記先端噴出口とは反対側に指向して斜めに突出する下流側壁部と、により形成されている、請求項４に記載の洗浄ノズル。 The upstream port is an upstream side wall portion obliquely protruding from the cylindrical main body portion of the cylindrical portion toward the radially inward side and toward the tip outlet side, and a radially outward and from the main body portion. The cleaning nozzle according to claim 4, wherein the cleaning nozzle is formed by: a downstream side wall portion obliquely protruding in a direction opposite to the tip ejection port.
  6. 　請求項１から５のいずれか一項に記載の洗浄ノズルと、
    　前記加圧水供給源に接続されて該加圧水供給源から前記加圧水導入口への加圧水の供給および遮断を切り替える加圧水供給切替部と、
    　前記洗浄液供給源に接続されて該洗浄液供給源から前記洗浄液導入口への洗浄液の供給および遮断を切り替える洗浄液供給切替部と、
    を含む洗浄ガン。     A cleaning nozzle according to any one of claims 1 to 5,
    A pressurized water supply switching unit that is connected to the pressurized water supply source and switches between supply and cutoff of pressurized water from the pressurized water supply source to the pressurized water inlet,
    A cleaning liquid supply switching unit that is connected to the cleaning liquid supply source and switches supply and cutoff of the cleaning liquid from the cleaning liquid supply source to the cleaning liquid introduction port;
    Including cleaning gun.
  7. 　請求項６に記載の洗浄ガンと、
    　前記加圧水供給源と、
    　前記洗浄液供給源と、
    を含む洗浄装置。     A cleaning gun according to claim 6,
    The pressurized water supply source,
    The cleaning liquid supply source,
    Cleaning equipment including.
PCT/JP2018/029418 2018-08-06 2018-08-06 Cleaning nozzle, cleaning gun, and cleaning device WO2020031235A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/029418 WO2020031235A1 (en) 2018-08-06 2018-08-06 Cleaning nozzle, cleaning gun, and cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/029418 WO2020031235A1 (en) 2018-08-06 2018-08-06 Cleaning nozzle, cleaning gun, and cleaning device

Publications (1)

Publication Number Publication Date
WO2020031235A1 true WO2020031235A1 (en) 2020-02-13

Family

ID=69413294

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/029418 WO2020031235A1 (en) 2018-08-06 2018-08-06 Cleaning nozzle, cleaning gun, and cleaning device

Country Status (1)

Country Link
WO (1) WO2020031235A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005288394A (en) * 2004-04-05 2005-10-20 Mitsubishi Electric Corp Bubble jetting device
JP2009022841A (en) * 2007-07-17 2009-02-05 Noritz Corp Cleaning apparatus
JP3165523U (en) * 2010-11-06 2011-01-27 株式会社Ｒｙｕ High pressure simple washing dryer
JP2013126615A (en) * 2011-12-16 2013-06-27 Ryobi Ltd High-pressure washer nozzle, and high-pressure washer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005288394A (en) * 2004-04-05 2005-10-20 Mitsubishi Electric Corp Bubble jetting device
JP2009022841A (en) * 2007-07-17 2009-02-05 Noritz Corp Cleaning apparatus
JP3165523U (en) * 2010-11-06 2011-01-27 株式会社Ｒｙｕ High pressure simple washing dryer
JP2013126615A (en) * 2011-12-16 2013-06-27 Ryobi Ltd High-pressure washer nozzle, and high-pressure washer

Similar Documents

Publication Publication Date Title
CN101983038B (en) Water jet surgical instrument
US4071195A (en) Spray and foam producing nozzle apparatus
JP4398469B2 (en) washing machine
JPWO2009004744A1 (en) Fluid ejection gun
KR20090018773A (en) Facial treatment device
JP2008110318A (en) Liquid spraying nozzle
JP6080657B2 (en) Fluid ejection gun
CN100408199C (en) Liquid-like body-jetting adapter and liquid-like body feeder/container
KR101599519B1 (en) Spray apparatus of liquid substance
KR101634243B1 (en) Chemical injection apparatus
KR20160072457A (en) A nozzle for spraying mixed fluid
TWI617360B (en) Vacuum spray apparatus and uses thereof
KR100328011B1 (en) Discharge head for discharging media
JP5646243B2 (en) Fluid ejection gun
JP6843423B2 (en) Nozzle device for oral cleaning device
WO2020031235A1 (en) Cleaning nozzle, cleaning gun, and cleaning device
JP2008114211A (en) Fluid ejection device
KR102249477B1 (en) Mist spray
JP2009291699A (en) Nozzle device for fire extinguishing
JP2006297568A (en) Blast nozzle and blast gun with the same
JP5728198B2 (en) Suction device tip structure, suction adapter having the tip structure, and suction-type cleaning gun
JP5946597B1 (en) Spray nozzle device
JP2006035081A (en) Nozzle for spraying chemical and spray
US9527100B2 (en) Injector nozzle
JP2006007183A (en) Fluid blowgun

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18929631

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18929631

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP