KR101271642B1 - Spray apparatus of liquid substance - Google Patents

Abstract

PURPOSE: A liquid spray device is provided to use the high pressure air to spray liquid such as foundation, and to separably connect a nozzle unit, an accommodation container, and a main body, thereby facilitating replacement and cleaning. CONSTITUTION: A liquid spray device comprises a main body(200), a sub-body, a liquid supply unit, a nozzle unit, a gas supply unit, and a nozzle control unit. The sub-body is separably combined with the main body. The liquid supply unit is installed on the sub-body, and supplies liquid to be sprayed. The nozzle unit is separably combined with the sub-body, and uses the high pressure air to spray the liquid, which is supplied by the liquid supply unit, to the outside. The gas supply unit supplies the high pressure air to the nozzle unit. The nozzle control unit controls the nozzle unit in order to adjust the spray of the liquid.

Description

Spray apparatus of liquid substance

The present invention relates to a liquid ejection apparatus, and relates to a liquid ejection apparatus in which a nozzle unit, a receiving container, and a main body are detachably coupled to each other.

Liquid injection device is a device that can inject a liquid or gas through a nozzle according to the user's operation, has been applied in various fields such as a nebulizer, a spray, a cosmetic container, a mouthwash.

A foundation injector may be used as an example using a liquid injector. A conventional foundation injector fills the foundation in a container, and injects the foundation into the container to inject the foundation to the outside. In order to properly control the amount of foundation filled in the mother body, it is equipped with a discharge valve that provides a discharge path of the foundation and a pressurized pump that injects the foundation, thereby forming a structure to discharge the foundation by injection of compressed air.

Korean Patent Application Publication No. 10-2003-0001052 discloses a foundation injection mechanism. The foundation injection mechanism is provided with a push button reciprocated by an external force and a slide pin coupled with the push button to reciprocate to pressurize the slide pin to reciprocate the push button, and the pressing force of the slide pin. A discharge rod configured to receive a pressing force of the slide pin and to flow the foundation by having a push rod reciprocating to the rod and a tube surrounding the outer circumference of the push rod and supporting the push rod to reciprocate. A nozzle having a flow path formed on the reciprocating path and an opening / closing opening interposed in the flow path, the injection opening and closing of the flow path opening and closing the flow path as the reciprocating opening and closing flows by pressurization of the push rod, and the foundation being discharged according to opening and closing of the flow path. And a nozzle.

However, the liquid ejecting mechanism only discharges the foundation from the inside of the container, and the ejected foundation is cumbersome because the user directly applies the spray on the face and is difficult to apply uniformly on the face surface. In addition, the liquid injection mechanism is difficult to replace and clean the separation and separation between the components is not easy.

The present invention has been made to solve the above problems, and relates to a liquid injection device for injecting a liquid, such as a foundation through a high-pressure air, the main body, the injection nozzle, the receiving container and the like are separated from each other. .

The liquid injection unit according to the present invention for achieving the above object is a main body, a sub body detachably coupled to the main body, a liquid supply part that is detachably installed in the sub body, and supplies a liquid to be injected; A nozzle unit detachably coupled to the sub-body, for injecting the liquid supplied from the liquid supply unit to the outside by a high pressure air, a gas supply unit for supplying high pressure air to the nozzle unit, and injection of the liquid It comprises a nozzle control unit for controlling the nozzle unit to intermittent.

The liquid supply part is detachably installed in the sub-body, an inner space in which the liquid is accommodated is provided, and an opening for injecting the liquid into the inner space is formed on an outer circumferential surface thereof, It is preferable to include a case provided with a coupling portion coupled to communicate with the nozzle portion so that the received liquid is supplied to the nozzle portion, and an opening and closing stopper for opening and closing the injection port.

The liquid supply part is inserted into the inner space, and the liquid is accommodated therein, the discharge portion coupled to the coupling portion such that the liquid contained therein can be discharged to the nozzle unit through the coupling portion when inserted into the inner space It further has a cartridge.

The sub-body is provided with an installation space in which the nozzle unit is installed, a through hole is formed on the outer circumferential surface so that the case is inserted through and coupled to the nozzle unit, and the case is partially inserted into the through hole. The hook portion is formed on the side surface so that the hook portion can be caught by the edge of the through hole so as to protrude out of the sub-body, and the injection hole is formed on the outer surface exposed to the outside when inserted into the through hole.

The nozzle unit is detachably installed at the front end of the sub-body, the discharge port is formed in the front, the nozzle cap is provided with a communication space communicated to the discharge port therein, and detachably coupled to the rear of the nozzle cap, A liquid discharge port and a gas discharge port are formed at the front to discharge the liquid and the high pressure air into the communication space, and an injection hole is formed at the outer circumferential surface to inject the liquid from the liquid supply part, and a liquid passage communicates with the liquid discharge port inside. And, one end is in communication with the gas outlet, the other end is a gas passage communicating with the gas supply unit, both ends of the nozzle body formed with an injection passage communicating with the liquid passage and the injection port, respectively, the front end is introduced into the discharge port, the rear end The part is installed in the nozzle body, there is formed a connecting passage communicating with the liquid outlet therein, By a pressure difference generated by the air sprayed through the ejection outlet group includes an ejection port provided with a nozzle tip which communicates with the connecting passage so as to be the liquid is injected to the outside.

The liquid passage and the connecting passage are formed extending in the front and rear direction, the nozzle control unit opening and closing needles slidably installed in the liquid passage and the connecting passage in the front and rear directions so that the front end portion can open and close the injection port of the nozzle tip, and the opening and closing And a driving portion for sliding the needle in the front-rear direction.

The driving unit is slidably installed in the sub-body in the front and rear direction so that the front end is in contact with the rear end of the opening and closing needle, the rear end extends to be drawn into the main body, the needle push pin formed with a through hole at the rear end, An end is inserted into the through hole, the pivot pin is rotatably installed on the main body to rotate the needle push pin back and forth by rotation, and one end is hinged to the other end of the pivot pin. It is installed rotatably on the main body, provided with a gripping portion protruding to the outside of the main body so that the user can grip on the outer circumferential surface to rotate the needle push pin back when the gripping portion rotates in the direction to the inside of the main body Rotate the pivot pin to rotate the pivot pin in the direction in which the gripping portion is drawn out of the main body. An elastic force on the lever so as to rotate the pivot pin in a direction to advance the needle needle pin, and the grip part rotates in a direction in which the gripping portion is drawn out of the main body to advance the opening / closing needle to close the injection hole; And a second elastic member for providing an elastic force less than the elastic force of the first elastic member so that the needle push pin moves backward to open the injection hole when the needle push pin is retracted.

The gas supply unit includes a first tube communicating with the gas passage of the nozzle body, a second tube installed in the main body, connected to a gas supply device, and supplied with high pressure air from the gas supply device, and the first and It is installed between the second tube, and interlocked with the lever to control the air supply from the second tube to the first tube, when the lever is rotated in the direction in which the grip portion is introduced into the main body the first The valve unit for communicating the first and the second tube with each other so that the air is supplied to the first tube, and shuts off the air supply to the first tube when the lever is rotated in the direction in which the holding portion is drawn out to the outside of the main body; Equipped.

The liquid spraying device according to the present invention injects a liquid such as a foundation through high pressure air, and the main body, the injection nozzle, the receiving container, etc. are detachably coupled to each other, thereby making it easy to exchange and clean.

1 is a perspective view of a liquid injection apparatus according to the present invention,
Figure 2 is an exploded perspective view of the liquid injection device according to the present invention,
3 is a cross-sectional view of a liquid injection apparatus according to the present invention,
4 is a partial cross-sectional view of the valve unit of the liquid jet apparatus according to the present invention,
5 is a cross-sectional view of a liquid injection apparatus according to another embodiment of the present invention.

Hereinafter, the liquid spraying value according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in more detail.

1 to 3 show a liquid injection apparatus 100 according to the present invention.

Referring to the drawings, the liquid injection apparatus 100 is installed in the main body 200, the sub main body 230 detachably coupled to the main main body 200, the sub main body 230, the injection target A liquid supply unit 300 for supplying a liquid, and a nozzle unit 400 that is detachably coupled to the sub-body 230, for injecting the liquid contained in the container into the outside by a high-pressure air, and the main body. And a gas supply unit 500 installed at 200 to transfer the high pressure air supplied from the gas supply device to the nozzle unit.

The main body 200 includes a main body 210 provided with an installation space 211 therein, and a main cap 220 installed in front of the main body 210.

The main body 210 is formed to be open in the front, divided in the front and rear directions. The main body 210 has a through hole 212 formed to penetrate in an up and down direction so that the upper portion of the lever 453 of the nozzle unit 400 to be described later is protruded. At this time, the through groove 212 preferably extends a predetermined length in the front-rear direction.

The main body 210 is formed to be curved such that the rear end of the main body 210 is positioned above the front end so that the user can easily grip it. On the rear end surface of the main body 210, a supply port 213 penetrated in the front and rear directions is formed so that the air nozzle 501 of the gas supply unit 500 to be described later may be inserted therethrough. In addition, a hose joint 214 is installed at the rear end of the main body 210 to prevent the gas supply pipe (not shown) and the air nozzle 501 of the gas supply device coupled to each other from being separated.

The front end surface of the main body 210 is formed with a coupling member 215 extending along the edge so that the main cap 220 can be coupled. The coupling member 215 protrudes forward to be drawn into the main cap 220 and is stepped inward with respect to the outer surface of the main body 210. A plurality of coupling members 215 are provided on the outer circumferential surface of the coupling member 215. It is preferable that the first coupling hole 216 is formed.

The main cap 220 is a closing plate 221 for closing the front end surface of the open main body 210, the edge member 222 extending along the outer circumferential surface of the closure plate 221, the edge member 222 It is provided with a connecting member 223 installed in front of.

The closing plate 221 is formed in a plate shape having an area corresponding to the front end surface of the main body 210, the first side so as to penetrate in the front and rear directions so that the needle push pin 451 of the nozzle unit to be described later can be installed An installation tool 221a is formed. In addition, the closing plate 221 is penetrated in the front and rear direction so that the air supply pipe of the gas supply unit 500 to be described later to be penetrated at a position spaced with respect to the first installation port (221a) 221b Is formed.

In addition, the closing plate 221 has an insertion groove 221d is formed so that the first insertion protrusion 223c of the connection member 223 which will be described later is inserted into the front end surface in order to easily connect the connection member 223. . Insertion groove 221d is preferably formed extending along the edge of the closing plate 221 to form a closed orbit.

The edge member 222 extends along the outer circumferential surface of the closing plate 221 and is formed to protrude rearward with respect to the closing plate 221 so that the coupling member 215 of the main body 210 can be inserted. Edge member 222 has a first locking jaw (not shown) so that the coupling member 215 can be inserted into the first coupling hole 216 on the inner side of the position opposite to the first coupling hole 216 when the coupling member 215 is inserted Is formed.

The connecting member 223 is formed in a plate shape having an area that can cover the entire surface of the rim member 222, and the third through the front and rear directions at positions opposite to the first and second mounting holes (221a, 221b), respectively; And fourth mounting holes 223a and 223b are formed. In addition, the connection member 223 has a first insertion protrusion 223c extending along the edge thereof so as to be introduced into the edge member 222 on the rear surface opposite to the edge member 222.

In addition, the connecting member 223 has a seating member 223f formed to protrude forward so that the case 310 of the liquid supply unit 300 to be described later inserted into the sub main body 230 can be easily seated on the front surface. . The seating member 223f is formed to surround the lower part of the case 310, and an opening is formed to penetrate through the bottom surface of the front side in a vertical direction so that the coupling portion 312 of the case 310 to be described later may be inserted therethrough. It is preferable.

The sub main body 230 is provided with an inner space 231 so that the nozzle unit and the receiving container can be installed therein, and the rear side of the sub main body 230 is inserted into the second inserting protrusion 223 d of the connecting member 223 to be fit. It is formed so as to be open. An insertion hole is formed in the front of the sub-body 230 so as to penetrate in the front and rear directions so that the front portion of the nozzle unit may be installed to protrude.

The sub main body 230 extends along the edge of the insertion hole, and a screw member 234 protruding upward is formed. The screw member 234 has male threads formed on the outer circumferential surface thereof so as to be screwed with the nozzle cap 410 of the nozzle unit to be described later. The upper surface of the sub-body 230 is formed with a through hole 233 penetrated in the vertical direction so that the receiving vessel can be inserted through. At this time, the through hole 233 is preferably formed to extend a predetermined length in the left and right directions.

The liquid supply part is detachably installed in the sub main body 230, and an accommodation space 311 is provided therein for receiving liquid therein, and an opening 316 for injecting liquid into the accommodation space 311 on an outer circumferential surface thereof. It is provided with a case 310 and an opening and closing stopper 320 for opening and closing the opening 316.

The case 310 is formed of a transparent synthetic resin material so as to check the amount of the liquid contained therein from the outside. The case 310 has a coupling portion 312 formed at a lower portion of the lower portion facing the nozzle portion 400 so as to be inserted into the injection hole of the nozzle portion 400 to be described later.

The coupling portion 312 is formed to protrude downwardly of the case 310 so that the coupling portion 312 can be inserted into the injection hole 426, there is provided a flow path (not shown) in communication with the receiving space 311, At the bottom surface, an outlet hole communicating with the flow path is formed.

In addition, the case 310 has a locking jaw portion which is caught by the edge of the through hole 233 on the outer circumferential surface to protrude out of the sub-body 230 so that the user can easily grip when coupled to the through hole 233. 315 is formed. The case 310 is formed to be stepped so that the lower side of the side is introduced into the receiving space 311, and the locking jaw is provided, and the injection hole 426 is exposed to the outside when inserted into the through hole 233. It is preferably formed on the upper surface of the). A through hole is formed in the rear surface of the case 310 so as to penetrate the inside of the container so as to be maintained at atmospheric pressure.

The opening and closing stopper 320 includes an insertion part 322 inserted into the opening 316 of the case 310 and a head part 321 coupled to an upper end of the insertion part 322.

Meanwhile, the liquid contained in the case 310 and sprayed through the nozzle unit 400 is a cosmetic such as a liquid foundation, but is not limited thereto, and may be a liquid material such as water, a liquid paint, or a medicine.

Insertion portion 322 has a cross section of a size corresponding to the opening 316, the O-ring (not shown) is provided on the outer peripheral surface to maintain the watertight with the case 310 when inserted into the opening 316. The head portion 321 is formed in a cross section larger than the opening 316 so that the insertion portion 322 protrudes out of the case 310 when inserted into the through hole 233.

Meanwhile, FIG. 5 illustrates a liquid supply part 330 according to another embodiment of the present invention.

Elements having the same functions as those in the previous drawings are denoted by the same reference numerals.

Referring to the drawings, the liquid supply unit 330 is inserted into the receiving space 311 of the case 310, and further includes a cartridge 331 containing the liquid therein. When the cartridge 331 is inserted into the accommodation space 311, the liquid contained therein may be discharged to the nozzle unit 400 through the coupling unit 312 and the discharge unit 332 coupled to the coupling unit 312. ).

The discharge part 332 is formed to protrude downwardly of the cartridge 331 to be inserted into the flow path 313 of the coupling portion 312, the inner path for the liquid flow therein is provided, the bottom surface The discharge hole is formed in communication with the inner path. The liquid contained in the cartridge 331 is discharged through the discharge part 332 and flows into the injection hole 426 of the nozzle part 400.

On the other hand, although not shown in the drawings, the opening and closing stopper 320 may be installed in the opening 316 of the case 310, the cartridge 331 is inserted to close the receiving space 311 of the case 310. have.

The nozzle unit 400 is detachably installed in the sub-body 230, a discharge port 411 is formed in the front, the nozzle cap 410 is provided with a communication space 412 communicating with the discharge port 411 therein ), A liquid passage 421 which is installed at the rear of the nozzle cap 410 and communicates with the receiving container so that the liquid can be transferred therein, and a gas passage 422 communicating with the gas supply unit 500. The nozzle body 420 and the front end are introduced into the discharge port 411, the rear end is installed in the nozzle body 420, the connecting passage 431 is formed in communication with the liquid passage 421 therein, the front end surface And a nozzle tip 430 having an injection hole 432 communicating with the liquid passage 421, and an opening and closing part 440 that opens and closes the injection hole 432 of the nozzle tip 430.

The nozzle cap 410 is formed in a conical shape in which the cross section becomes narrower toward the front, and a female thread is formed on the inner circumferential surface to be screwed to the screw member 234 of the sub-body 230 on the rear inner circumferential surface.

The nozzle body 420 is coupled to the rear portion of the nozzle cap 410, it is preferably installed to close the rear surface of the inner space 231. The nozzle body 420 is formed in a cylindrical shape having an outer diameter smaller than the inner diameter of the insertion hole so that the nozzle body 420 can be easily inserted into the insertion hole of the sub-body 230.

The nozzle body 420 is formed with a liquid discharge port 424 for discharging the liquid in the center of the front surface, the liquid discharge port 424 is formed to communicate with the liquid passage 421. At this time, the liquid passage 421 is extended in the front and rear direction. In addition, the nozzle body 420 has a gas discharge port 425 is formed on the front surface of the position spaced apart from the liquid discharge port 424 so that air can be discharged to the communication space 412, the gas discharge port 425 is a gas It is formed in communication with the passage 422. The high pressure air supplied from the gas supply part 500 flows into the communication space 412 of the nozzle cap 410 through the gas passage 422, and is injected to the outside through the discharge port 411.

On the other hand, an injection hole 426 is formed on the outer circumferential surface of the nozzle body 420 so that the coupling portion 312 of the case 310 can be inserted, and both ends of the nozzle body 420 are respectively injected with the injection hole 426 and the liquid. An injection passage 427 is formed in communication with the passage 421. At this time, the injection passage 427 is preferably formed to be inclined in the direction crossing with respect to the liquid passage (421).

The liquid contained in the case 310 flows into the liquid passage 421 of the nozzle body 420 through the coupling portion 312 of the case 310 and flows to the nozzle tip 430 along the liquid passage 421. It is sprayed to the outside of the nozzle cap 410 through the nozzle tip 430. On the other hand, the injection hole 426 is preferably provided with an input nipple 423 so that the coupling portion 312 of the case 310 can be easily inserted.

The nozzle tip 430 extends forward, and is formed in a conical shape whose outer diameter decreases toward the front so that the front end portion can be easily inserted into the discharge port 411. The connection passage 431 of the nozzle tip 430 extends in the front-rear direction in parallel with the liquid passage 421 of the nozzle body 420 so that the opening and closing needle 441 of the opening and closing portion 440 to be described later can be easily installed. do.

The liquid in the liquid passage 421 flows into the connection passage 431 of the nozzle tip 430, and the liquid passes through the discharge hole 411 according to the venturi effect generated by the high pressure air injected into the outside through the discharge hole 411. Is blown out through. That is, the pressure difference is generated by the flow rate of the high-pressure air injected through the discharge port 411, the suction force is generated in the discharge port 411 by the pressure difference, the liquid in the connection passage 431 is ejected to the outside.

The opening and closing portion 440 includes an opening and closing needle 441 which is slidably installed in the front and rear directions of the liquid passage 421 and the connection passage 431 so that one end thereof can open and close the injection hole 432 of the nozzle tip 430; The driving unit 450 slides the opening / closing needle 441 in the front-rear direction.

The opening and closing needle 441 extends in all directions, and a rear end thereof is installed to penetrate the rear surface of the nozzle body 420. The opening and closing needle 441 is formed to have a smaller cross section toward the front to easily open and close the injection hole 432 of the nozzle tip 430. In addition, an interference protrusion 442 is formed at a rear end of the opening / closing needle 441 to prevent the entire opening / closing needle 441 from being introduced into the nozzle body 420.

The driving unit is slidably installed in the front and rear direction in the main body 200 so that the front end is in contact with the rear end of the opening and closing needle 441, the needle push pin 451 and the through hole is formed in the rear end, and the through hole Rotating pin 452 is inserted into the end and is rotatably installed on the main body 200 to rotate the needle push pin 451 back and forth by rotation, and rotatably installed on the main body 200. And an end portion is hinged to the other end of the pivot pin 452 to rotate the pivot pin 452 back and forth by rotation, and the injection hole 432 is closed by the opening and closing needle 441. In order to rotate the lever 453 in the direction in which the pivot pin 452 is forward to provide a first elastic member 454 and the needle push pin 451 when the reverse direction of the injection hole 432 The first elastic to move the opening and closing needle 441 to the rear to open A second elastic member 455 is provided to provide an elastic force smaller than that of the member 454.

The needle push pin 451 is installed to penetrate the first mounting hole 221a of the closing plate 221 and the third mounting hole 223a of the connecting member 223 and extends in the front-rear direction. The needle push pin 451 is provided so that the front end portion is in contact with the rear end portion of the opening and closing needle 441, and the through hole 233 formed at the other end portion is formed to penetrate in the vertical direction.

The pivot pin 452 has a front end inserted into the through hole of the needle push pin 451, and a first arm member 456 installed inside the main body 200 so that the rear end is rotatable in the vertical direction, and the first arm member. A second arm member 457 extending forward is formed at the rear end of the 456. The second arm member 457 extends in a direction crossing the extending direction of the first arm member 456, and preferably extends above the first arm member 456. An end of the second arm member 457 is hinged to the front end of the lever 453.

The lever 453 is provided with a gripping portion 458 on the upper portion to allow the user to grip, and the installation space of the main body 210 so that the gripping portion 458 protrudes out through the through groove 212. (211) It is rotatably installed on the upper side. The lever 453 is formed to extend forwardly about the rotation axis.

A coupling arm 459 is provided at the front of the lever 453 so as to be coupled to the other end of the second arm member 457 of the pivot pin 452. The coupling arm 459 extends a predetermined length downward to be easily coupled to the pivot pin 452.

The first elastic member 454 is formed of a coil spring having a predetermined elasticity and is installed in the valve unit 510 of the gas supply unit 500 to be described later to press the needle push pin 451 to move forward. The lever 453 provides an elastic force in the direction of rotating upward.

The second elastic member 455 is fixed to the interference protrusion 442 of the opening and closing needle 441, the other end is fixed to the rear of the nozzle body 420 to provide an elastic force to move the opening and closing needle 441 to the rear. The coil spring is formed. At this time, the second elastic member 455 is the first elastic member 454 so that the opening and closing needle 441 is moved forward when the lever 453 is not in operation to close the discharge port 411 of the nozzle tip 430 It is desirable to be formed to have a smaller elastic force.

Referring to the operation of the drive unit configured as mentioned above is as follows.

When spraying the liquid, first, the user grips the gripping portion 458 and then rotates the lever 453 downward. When the lever 453 is rotated downward, the second arm member 457 hinged to the coupling arm 459 is rotated downward, and the first arm member (457) is rotated backward. 456 is pivoted backwards. The needle push pin 451 is slid backward by the first arm member 456 which is rotated rearward, and the needle push pin 451 is spaced apart from the other end of the opening and closing needle 441. At this time, the opening and closing needle 441 is slid rearward by the elastic force of the second elastic member 455, and the discharge port 411 is opened by the movement of the opening and closing needle 441. The liquid is injected to the outside through the open discharge port 411.

When stopping the injection of the liquid, the user stops applying the pressing force from the lever 453. At this time, the second arm member 457 pivoted upward by the elastic force of the first elastic member 454 and hinged to the coupling arm 459 by the lever 453 pivoting upward. Rotate upwards. The first arm member 456 rotates forward by the second arm member 457 pivoting upward, and the needle push pin 451 is moved forward by the first arm member 456 pivoted forward. The opening and closing needle 441 is slid forward by the needle push pin 451 to close the discharge port 411.

The gas supply unit 500 is installed in the main body 200 and the first tube 502 communicating with the gas passage 422 of the nozzle body 420, the high-pressure air supplied from the gas supply device is the main In communication with the gas supply device to be drawn into the main body 200, the air nozzle 501 is installed to penetrate the rear portion of the main body 200 and the high pressure air to be supplied from the gas supply device The second tube 503 communicated with the air nozzle 501 and the first and second tubes 502 and 503 are interposed between the second tube 503 and the first tube 502 interlocked with the lever 453. And a valve unit 510 for controlling the air supply.

On the other hand, the gas supplied to the gas supply unit 500 through the gas supply device is not limited to high-pressure air may use oxygen or carbon.

One end of the first tube 502 may be connected to the gas passage 422 at the rear end of the nozzle body 420, and the other end may be inserted into the main body 200 to be coupled to the valve unit 510. So that it extends backwards. The first tube 502 is provided with a flow path through which air flows, and is preferably formed of a flexible rubber material so as to be easily bent.

One end of the second tube 503 communicates with the air nozzle 501, the other end is coupled to the valve unit, and a flow path through which air flows is provided, and is flexible to be easily bent in the main body 200. It is made of one rubber material.

The valve unit 510 is fixed to the inside of the main body 200 under the lever 453, and has a housing 511 in which a chamber 516 is provided, in which a first elastic member 454 is installed, and the housing 511. An elevating bar 512 is provided on the upper surface to be capable of raising and lowering in the vertical direction.

The housing 511 is formed of a rectangular parallelepiped having a chamber 516 in which the first elastic member 454 is installed. An elevating passage 515 is provided in the housing 511 so that the elevating bar 512 can be slidably installed in the up and down direction, and the elevating passage 515 communicates with the upper portion of the chamber 516. The upper surface of the 511 is formed to be open.

In addition, the housing 511 is provided with a first passage 517 which is connected to the second tube 503 in communication with the outer peripheral surface of the rear, the first passage 517 is the air supplied through the second tube 503 Is formed to communicate with the lifting passage 515 to be introduced into the lifting passage 515. The housing 511 is provided with a second passage 518 in which the first tube 502 is connected in communication with the front outer circumferential surface, and the second passage 518 is formed in communication with the chamber 516.

The elevating bar 512 is inserted into the elevating passage 515 so as to be slidably installed in the housing 511 in a vertical direction. The elevating bar 512 is formed to have an outer diameter corresponding to the inner diameter of the elevating passage 515, and the upper end is in contact with the lower surface of the lever 453, and the lower end is the upper end of the first elastic member 454 installed in the chamber 516. It is preferable to extend longer than the length of the lifting passage 515 to be in contact with. The lower end of the elevating bar 512 prevents the elevating bar 512 from being separated from the housing 511 by the elastic force of the first elastic member 454 and easily contacts the upper edge of the first elastic member 454. The separation prevention plate 513 having an outer diameter larger than the inner diameter of the elevating passage 515 is installed to be possible.

In addition, the elevating bar 512 is formed on the outer circumferential surface opposite to the first passage 517, extending grooves 514 extending in the vertical direction so as to communicate with the first passage 517. At this time, the extension groove 514 when the lever 453 is lowered and the lifting bar 512 slides downward, the lower side is introduced into the chamber 516, the lever 453 is raised to raise the lifting bar 512 upward. When sliding, the lifting bar 512 is preferably formed on an outer circumferential surface of the lifting bar 512 at a position introduced into the lifting passage 515.

When the user grips the gripping portion 458 of the lever 453 and then lowers the lever 453, the lifting bar 512 in contact with the lower surface of the lever 453 is drawn into the housing 511. When the elevating bar 512 is lowered, the lower portion of the extension groove 514 formed on the outer circumferential surface of the elevating bar 512 is exposed to the chamber 516 to communicate with the tube groove 516 of the extension groove 514. At this time, the high pressure air in the second tube 503 is introduced into the chamber 516 through the extension groove 514, the high pressure air introduced into the chamber 516 is the first tube 502 through the second passage 518. Flows into). The high pressure air flows into the gas passage 422 of the nozzle body 420 along the first tube 502 and flows into the nozzle cap 410 along the gas passage 422 to discharge the outlet 411 of the nozzle cap 410. Sprayed to the outside through). The liquid is injected to the outside through the injection hole 432 of the nozzle tip 430 by the venturi effect generated by the high pressure air is injected.

When the user releases the contact state to the grip portion 458 of the lever 453, the elevating bar 512 is moved upward by the elastic force of the first elastic member 454, by the elevating bar 512 The extension groove 514 is drawn into the lifting passage 515. When the extension groove 514 is introduced, the supply of high pressure air from the second tube 503 to the chamber 516 is stopped, and the inflow of the high pressure air into the gas passage 422 of the nozzle body 420 is stopped.

Liquid injection device 100 according to the present invention configured as described above is to inject a liquid, such as a foundation through a high-pressure air to save the time required to apply the liquid, the body, the injection nozzle, the container These are mutually separable, so that they are easy to exchange and clean.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, these are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments thereof are possible.

Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

100: liquid injection device
200: main body
210: main body
220: main cap
230: sub-body
300: liquid supply
400: nozzle unit
500: gas supply unit

Claims (8)

Main body;
A sub body detachably coupled to the main body;
A liquid supply unit installed in the sub-body and supplying a liquid to be injected;
A nozzle unit detachably coupled to the sub-body, for injecting the liquid supplied from the liquid supply unit to the outside by a high pressure air;
A gas supply unit supplying high pressure air to the nozzle unit;
And a nozzle controller configured to control the nozzle to intercept the injection of the liquid.
The nozzle unit
A nozzle cap detachably installed at a front end of the sub-body, having a discharge port formed at a front thereof, and a communication space communicating with the discharge hole therein;
It is detachably coupled to the rear of the nozzle cap, a liquid discharge port and a gas discharge port is formed in the front to discharge the liquid and high pressure air into the communication space, an injection hole is formed so that the liquid is injected from the liquid supply portion on the outer peripheral surface A nozzle having a liquid passage communicating with the liquid discharge port, one end communicating with the gas discharge port, the other end communicating with the gas supply unit, and an injection passage communicating with both ends of the liquid passage and the injection port, respectively; Body;
A front end is introduced into the discharge port, a rear end is installed in the nozzle body, a connection passage communicating with the liquid discharge port is formed therein, and a front end surface is formed by the pressure difference generated by the air injected through the discharge port. And a nozzle tip having an injection hole communicating with the connection passage so that the liquid can be injected to the outside.
The method of claim 1,
The liquid supply part
Removably installed in the sub-body, there is provided an inner space for receiving the liquid therein, an opening for injecting the liquid into the inner space is formed on the outer peripheral surface, the liquid contained in the inner space A case having a coupling part coupled to communicate with the nozzle part so as to be supplied to the nozzle part;
Liquid injection device comprising a; opening and closing stopper for opening and closing the opening.
The method of claim 2,
The liquid supply part
A cartridge inserted into the inner space and having a discharge portion coupled to the coupling portion so that the liquid is received therein and the liquid contained therein is discharged to the nozzle portion through the coupling portion when inserted into the inner space; Liquid injection device characterized in that it further comprises.
The method according to claim 2 or 3,
The sub main body is provided with an installation space in which the nozzle unit is installed, and a through hole is formed at an outer circumferential surface thereof so as to be inserted into the case so as to be coupled to the nozzle unit.
The case has a locking portion formed on the side surface so that a part of the case can be caught by the edge of the through hole to protrude to the outside of the sub-body when inserted into the through hole, the opening on the outer surface exposed to the outside when inserted into the through hole Liquid injection device characterized in that formed.
delete The method of claim 1,
The liquid passage and the connecting passage is formed extending in the front and rear directions,
The nozzle control unit
An opening / closing needle slidably installed in the liquid passage and the connecting passage in the front-rear direction so that a front end portion can open and close the injection hole of the nozzle tip;
And a drive unit for sliding the opening and closing needle in the front and rear directions.
The method according to claim 6,
The driving unit
A needle push pin installed in the sub main body so as to slide forward and backward in front and rear ends of the opening and closing needles, the rear end extending into the main body and having a through hole formed at a rear end thereof;
Rotating pin is inserted into the through hole so that the end is penetrated, rotatably installed in the main body to advance the needle push pin back and forth by the rotation;
One end is hinged to the other end of the pivot pin, the other end is rotatably installed on the main body, provided with a gripping portion protruding to the outside of the main body so that the user can be gripped on the outer circumferential surface the gripping portion inside the main body Rotate the pivot pin in a direction of retracting the needle push pin when pivoting in the direction drawn in, and rotate the pivot pin in a direction of advancing the needle push pin when pivoting in the direction in which the gripping portion is drawn out of the main body. A lever to rotate;
A first elastic member providing an elastic force to the lever to rotate in the direction in which the gripping portion is drawn out of the main body to advance the opening / closing needle to close the injection hole;
And a second elastic member which provides an elastic force less than that of the first elastic member so that the needle push pin moves backward to open the injection hole when the needle push pin is moved backward.
The method of claim 7, wherein
The gas supply unit
A first tube communicating with the gas passage of the nozzle body;
A second tube installed in the main body and communicating with the gas supply device to receive high pressure air from the gas supply device;
The lever is installed between the first and second tubes, and interlocked with the lever to control the air supply from the second tube to the first tube. The first and second tubes communicate with each other so that air is supplied to the first tube during rotation, and when the lever is rotated in a direction in which the gripping portion is drawn out of the main body, the air supply to the first tube is blocked. And a valve unit.

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