JP2005238101A - Covering body and covering body for valve of sprinkler nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a covering body for a valve of a sprinkler nozzle with which the valve can be turned without removing the covering body provided to protect a tool engaging part. <P>SOLUTION: In the covering body 23 for the valve 13 of the sprinkler nozzle, a cutting line 24 through which the tip 21A of the tool 21 is penetrated is provided on a covering main body 23A for closing an opening part 12C. The cutting line 24 is formed so that the width (w) thereof is narrower than the width w2 of the tool engaging part. When the tip 21A of the tool 21 is penetrated through the cutting line 24, the cutting line 24 is elastically deformed to be forcibly widened and engaged with the tool engaging part 22 in this state to turn the the tool 21, so that valve 13 is turned and the quantity of water to be sprinkled is controlled. When the tool is withdrawn, the cutting line 24 is restored and closed. Thus, the valve 13 is turned without removing the covering body 23. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cover and a cover of a valve of a watering nozzle.

Conventionally, as this type, a water supply port provided in the lower part of the nozzle body and connected to the water supply pipe, a cavity provided in the upper part of the nozzle body, a water spray hole communicating with the cavity and the outside, and the water supply port A cylindrical valve case that is interposed between the hollow portion and has a communication hole formed in the side wall thereof, and is rotatably inserted into the valve case and communicated with the water supply port at the lower end and communicated with the communication hole on the side wall. And a valve with a water control hole. A valve mounting hole is formed on the upper surface of the nozzle body, and the valve is inserted into the upper surface of the valve inserted into the mounting hole by a screwdriver (driver). A tool engaging portion for moving is formed in a groove shape or the like, and a cap-like cover made of rubber, synthetic resin or the like is provided in the opening of the mounting hole so that sand or the like does not enter the tool engaging portion. Removable A watering nozzle is known (for example, Patent Document 1).
Japanese Utility Model Publication No. 6-34753

  In the prior art, when adjusting the amount of water spray, first remove the cover from the upper part of the valve case, then insert a tool such as a screwdriver and engage the tip of the valve with the tool engaging part. Is rotated to adjust the degree of overlap between the communication hole and the water control hole, and at the end of the work, the cover is reattached to the upper part of the valve case.

  However, if the cover is removed and reattached every time work is performed, there is a problem in that the work of adjusting the sprinkling amount is reduced.

  Therefore, the problem to be solved is to protect the tool engaging portion in various devices in which a tool such as a screw turning tool is inserted and its tip is engaged with the tool engaging portion to rotate the rotating shaft. It is a point which provides the cover body which can rotate a rotating shaft, without removing the cover body provided in this. Also, a cover provided to protect the tool engaging portion in a watering nozzle that inserts a tool such as a screw turning tool and engages the tip of the tool with the tool engaging portion to rotate the valve for adjusting the amount of water spraying. It is a point which provides the valve | bulb cover body of the watering nozzle which can rotate a valve | bulb without attaching / detaching.

  According to the first aspect of the present invention, the tool engaging portion that can engage the tip of the tool is provided on the base end surface, and the opening of the mounting hole in which the tip of the rotating shaft is rotatably inserted is opposed to the tool engaging portion. A cover formed by an elastic body provided so as to close the opening, wherein a cover or a gap through which the tip of the tool can pass is provided in the cover body closing the opening. It is.

  The invention according to claim 2 is the cover according to claim 1, wherein a wide hole is formed through the end of the cut or gap in the longitudinal direction.

  The invention of claim 3 forms a watering nozzle by inserting a watering amount adjusting valve having a tool engaging portion engageable with the tip of a tool on the upper end surface into an attachment hole provided on the upper surface side, In the cover of the valve of the watering nozzle formed by an elastic body that is fitted to the opening of the attachment hole of the watering nozzle and closes the opening, the cover body that closes the opening is attached to the cover body. It is a cover of the valve of the watering nozzle characterized by providing the cut | interruption or clearance gap which can penetrate the front-end | tip of a tool, and forming the width | variety of this cut | interval or clearance gap substantially the same as the width | variety of the said tool engaging part.

  According to a fourth aspect of the present invention, there is provided a cover for a watering nozzle according to the third aspect, wherein a wide hole is formed so as to penetrate the longitudinal end of the cut or gap.

  According to the first aspect of the present invention, when the tip of the tool is penetrated into the cut or gap, the cut or gap is elastically deformed and widened, and in this state, is engaged with the tool engaging portion, and the tool is rotated. The rotating shaft can be rotated by moving. When the tool is pulled out, the cut or gap is restored and closed, and the rotating shaft can be rotated without attaching or detaching the cover.

  According to the invention of claim 2, when the tip of the tool passes through the cut or gap or when the tool is rotated, even if local stress is generated at the end of the cut or the end of the gap, it can be dispersed. it can.

  According to the third aspect of the present invention, when the tip of the tool is penetrated into the cut or gap, the cut or gap is elastically deformed and expanded, and in this state, the tool engages with the tool engaging portion, and the tool is rotated. By moving, the valve can be rotated to adjust the amount of water spray. When the tool is pulled out, the cut or gap is restored and closed, and the valve can be rotated without removing the cover.

  According to the invention of claim 4, even when a local stress is generated at the end of the cut or at the end of the gap when the tip of the tool penetrates the cut or the gap or when the tool is rotated, this can be dispersed. it can.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  1 to 3 show a first embodiment, in which 1 is a water pipe embedded in a road or the like, and a water pipe 2 is erected on the water pipe 1. The water supply pipe 2 is connected to a water supply port 4 provided at the lower portion of the nozzle body 3 through an O-ring 5. A cavity 8 is formed in the upper part of the water supply port 4 through a partition wall 7 having a water passage hole 6. The hollow portion 8 is provided with four water spray holes 10 which are water spray ports communicating with the upper surface 9 of the nozzle body 3 in four radial directions. A first mounting hole 9A into which the tubular valve case 12 is inserted vertically extends along the axis Z to the cavity 8 at the center of the upper surface 9 of the nozzle body 3. A female screw 11 is provided vertically on the partition wall 7 of the nozzle body 3. Then, a male screw 12A formed at the lower portion of the cylindrical valve case 12 inserted into the attachment hole 9A is screwed into the female screw 11, and a second screw formed through the shaft center Z of the valve case 12 is formed therethrough. The mounting hole 12B is provided on the upper surface 9 side of the nozzle body 3, and a shaft-like valve 13 as a rotating shaft is rotatably inserted into the second mounting hole 12B. The lower surface of the valve case 12 is watertightly provided on the upper surface of the partition wall 7, and a communication hole 15 is formed in the side wall 14 of the valve case 12 to communicate the inside and the outside.

  Further, the valve 13 has a guide hole 16 formed in a lower portion on the tip side, and a water control system capable of communicating with the communication hole 15 by rotating the valve 13 on a side wall 17 of the guide hole 16. A hole 18 is formed. A water passage is formed from the water supply port 4 to the water spray hole 10 through the water passage hole 6, the water passage hole 6, the guide hole 16, the water control hole 18, the communication hole 15, and the cavity portion 8. In the figure, 19 is an O-ring for ensuring watertightness. Further, a pin 20A is inserted into a groove 20 formed in the valve 13 from the outside of the valve case 12 to prevent the cock-type valve 13 from being turned off. Further, a tool engaging portion 22 for rotating the valve 13 by a tip 21A of a screw turning tool (driver) 21 is formed on the upper end surface which is the base end surface of the valve 13. The tool engaging portion 22 is formed by a flat single-groove groove on the upper end surface of the valve 13 so as to pass through the axis Z. On the other hand, the tip 21A, which is a tool main body engaged with the tool engaging portion 22, is formed in an elongated shape so as to be referred to as a flathead screwdriver.

  Further, a cap-like cover 23 is detachably provided on the upper portion of the valve case 12 so that sand or the like does not enter the tool engaging portion 22. The cover body 23 is formed by forming a cut 24 through which the tip 21A can penetrate in the cover body main body 23A, and the cover body main body 23A is fitted into the square hole-shaped opening 12C above the second mounting hole 12B. It is a thin plate shape with a square plane, made of a material that can be deformed and restored with a relatively weak force such as rubber or elastic synthetic resin, specifically, a force that rotates the screw turning tool 21, Further, the cut 24 is formed in a flat single character shape in accordance with the shape of the tip 21A, and the longitudinal direction A of the flat single character shape passes through the axis Z and faces the angular direction of the cover body 23A. The width w of the cut 24 is 0 mm because both surfaces are in close contact. In addition, the width W may be formed with a narrow gap narrower than the width W1 of the tip 21A and consequently the width W2 of the tool engaging portion 22 (w = 0 mm, w ≦ W1, w ≦ W2). Further, the length l of the cut 24 is formed to be substantially the same as or shorter than the length L1 of the tip 21A (L1 ≧ l, l ≧ L1), and the length l of the cut 24 is the length of the tool engaging portion 22. The length is shorter than or substantially equal to L2 (l ≦ L2). Further, at both ends of the cut 24 in the longitudinal direction A, a hole 25 having a width of a planar circle having a width d slightly larger than the width w of the cut 24 is formed to form ends. The cover body 23A need not be entirely formed of rubber or elastic synthetic resin, and may be disposed at least near the periphery of the cut 24.

  Next, the operation of the above configuration will be described. When water is supplied from the water supply pipe 1 to the nozzle body 3 through the water supply pipe 2, the water passes through the water passage hole 6, the guide hole 16, the water control hole 18, the communication hole 15, and reaches the cavity portion 8. Water can be sprinkled from the portion 8 through the sprinkling hole 10 to the surroundings. Then, when adjusting to increase the amount of water spray, with the cover 23 fitted in the upper part of the second mounting hole 12B in advance, the tip 21A of the screw turning tool 21 is pushed through the cut 24 to widen it. At the same time, the tip 21 A is brought into contact with the upper end surface of the valve 13. Next, when the screw turning tool 21 is rotated on the axis Z, the tip 21A is inserted into and engaged with the tool engaging portion 22, so that the valve 13 is rotated and the communication hole 15 and the water control hole 18 are connected. A superposition | polymerization area is increased, a lot of water reaches the cavity part 8, and can increase the amount of water spray. After that, when the tip 21A is extracted from the cut 24, the widened cut 24 is restored to the original width w by its restoring force, and the opening area is narrowed. Therefore, intrusion of dust and the like is automatically prevented. Can do. On the other hand, when the amount of water spray is decreased, the screw 13 is applied to the tool engaging portion 22 through the cut 24 to apply the tool 21 and the like, and the valve 13 is rotated in the reverse direction so that the overlapping area of the communication hole 15 and the water control hole 18 is increased. By reducing it, the amount of watering can be reduced.

  As described above, in the embodiment, in the cover 23 of the valve 13 of the watering nozzle, the cover body 23A that closes the opening 12C is provided with the cut 24 through which the tip 21A of the tool 21 can penetrate, and the cut 24 When the width w is made narrower than the width W2 of the tool engaging portion 22, and the tip 21A of the tool 21 is passed through the cut 24, the cut 24 is elastically deformed and expanded, and in this state the tool engaging portion The valve 13 can be rotated to adjust the amount of water spray by engaging the tool 22 and rotating the tool 21, and when the tool 21 is pulled out, the cut 24 is restored and closed, and the cover 23 is attached and detached. The valve 13 can be rotated without doing so.

  Further, by forming a wide hole 25 at the end of the cut 24 in the longitudinal direction A, when the tip 21A of the tool 21 is passed through the cut 24 or when the tool 21 is rotated, the cut 24 Even if the local stress is generated at the end, it can be dispersed, so that breakage of the cut 24 can be prevented.

  Further, the length 24 of the cut 24 is formed to be shorter than the length L1 of the tool engaging portion 22, so that when the tip 21A of the tool 21 penetrates the cut 24, the cut 24 is greatly elastically deformed and spreads. When the tool 21 is pulled out, the cut 24 is restored and closed, and the valve 13 can be rotated without removing the cover 23.

4 to 6 show the second embodiment, and the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The cover body 23 'is formed by forming a gap 31 through which the tip 21A can penetrate in the cover body main body 23A', and the cover body main body 23A 'is fitted into the circular hole-shaped opening 9B above the first attachment hole 9A. A flat plate with a flat surface that can be deformed and restored with a relatively weak force such as rubber or elastic synthetic resin, specifically, a force that rotates the screw turning tool 21 Further, the gap 31 is formed in a plane single character shape in accordance with the shape of the tip 21A, and the longitudinal direction A ′ of the plane single character shape is radially directed around the axis Z. The width w ′ of the gap 31 is narrower or substantially the same as the width W1 of the tip 21A and eventually the width W2 of the tool engaging portion 22 (w ≦ W1, w ≦ W2), and the length l ′ of the gap 31 Is shorter than, substantially the same as, or longer than the length L1 of the tip 21A. The length l is shorter than or substantially equal to the length L2 of the tool engaging portion 22 (l ≦ L1, L1 ≦ l, l ≦ L2). Also forming the end to form a semi-circular hole portion 32 having the same diameter in the longitudinal direction A ^〃 ends of the gap 31.

  Next, the operation of the above configuration will be described. When ground water or the like is sent from the water supply pipe 1 to the nozzle body 3 through the water supply pipe 2, this water can be sprayed to the surroundings through the water sprinkling holes 10, and the cover 31 is previously provided when adjusting to increase the amount of water spray. Is inserted into the opening 9B in the upper part of the first mounting hole 9A so as to penetrate the tip 21A of the screw turning tool 21 so as to widen the gap 31, and the tip 21A passes through the upper end surface of the valve 13. Abut. Next, when the screw turning tool 21 is rotated on the axis Z, the tip 21A is inserted into and engaged with the tool engaging portion 22, so that the valve 13 is rotated and the amount of water spray can be increased. Thereafter, when the tip 21A is extracted from the gap 31, the widened gap 31 is restored to the original width w 'by its restoring force, and the opening area is narrowed. Therefore, intrusion of dust and the like is automatically reduced. be able to. On the other hand, when the amount of water spray is reduced, a screw is applied to the tool engaging portion 22 through the gap 31 to apply the tool 21 or the like, and the valve 13 is rotated in the reverse direction, so that the overlapping area of the communication hole 15 and the water control hole 18 is increased. By reducing it, the amount of watering can be reduced.

  As described above, in the embodiment, in the cover body 23 ′ of the valve 13 of the watering nozzle, the gap body 31A that closes the opening 9B is provided with the gap 31 through which the tip 21A of the tool 21 can pass, and the gap 31 Is formed to be narrower than the width W2 of the tool engaging portion 22. When the tip 21A of the tool 21 is passed through the gap 31, the gap 31 is elastically deformed and spreads, engages with the tool engaging portion 22 in this state, and rotates the tool 21 to turn on the valve 13. , And the amount of water spray can be adjusted, and when the tool 21 is pulled out, the gap 31 is restored and closed, and the valve 13 can be rotated without removing the cover 23.

  Further, the semicircular hole portion 32 is formed so as to communicate with the end of the gap 31 in the longitudinal direction A, so that when the tip 21A of the tool 21 passes through the gap 31 or when the tool 21 is rotated, the gap Even if local stress is generated at the end of 31, it can be dispersed, so that breakage of the gap 31 can be prevented.

  In addition, since the length l ′ of the gap 31 is shorter than the length L2 of the tool engaging portion 22, entry of dust and the like can be reduced from the gap 31 of the cover 23.

FIG. 7 shows the third embodiment, and the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the first and second embodiments, the tool engaging portion has a plane one-letter shape, but in the third embodiment, a plane cross-shaped portion is rotated by a tool called a plus screwdriver or the like. 23 ^〃 is a cover body 23 ^</ b ^> A formed with a planar cross-shaped cut 24 ^〃 or a gap through which a flat cross-shaped tip 21 ^</ b ^{> A} can penetrate, and the cover body 23 ^</ b> A ^角 is a square hole-shaped opening 12 </ b ^> C. It is a thin plate with a rectangular plane so that it can be fitted to the screw, and it can be deformed and restored with a relatively weak force such as rubber or elastic synthetic resin, specifically, a force that turns the screw 21 ^〃 It is made of a possible material, and the cut 24 ^{切 れ} is formed in accordance with the shape of the tip 21A ^、, the center of which is substantially coincident with the axis Z, and the longitudinal direction A ^状 is radial about the axis Z Suitable for. Width The width of slit 24 ^〃 w ^〃 the width W1 of the front end 21A ^〃, thus a narrow or almost the same than the tool engagement portion 22 ^〃 width W2 of (w ≦ W1, w ≦ W2), also it cuts 24 ^〃 of the length l ^〃 is less than or tip 21A ^〃 length L1, is formed substantially equal to or longer (l ≦ L1, L1 ≦ l ). Furthermore, the length ^l〃 is shorter, substantially the same as or longer than the length L2 of the tool engaging portion ^22〃 (l ≦ L2, L2 ≦ l). Also forming the end by forming a circular hole portion 25 ^〃 having the same diameter in the longitudinal direction A ^〃 ends of cuts 24 ^〃.

Next, the operation of the above configuration will be described. In a state in which the cover body 23 ^〃 fitted in the opening 12C, as to penetrate so as push the cut 24 ^〃 the drive tool 21 ^〃 tip 21A ^〃, the upper end surface of the valve 13 ^〃 tip 21A ^〃 Abut. Next, when rotating the drive tool 21 ^〃 on the axis Z, since the front end 21A ^〃 engaged by inserting the tool engagement portion 22 ^〃, valve 13 ^〃 rotates, can increase the water spray amount. Thereafter, when the front end 21A ^〃 slit 24 ^〃 extracting more, the cuts 24 ^〃 which had spread will narrow the opening area and returns to the initial width w ^〃 by its restoring force, the penetration of this for dust automatically to in the embodiment as described above, which can be reduced, the valve 13 ^〃 of covering 23 ^〃 sprinkler nozzle, the covering body 23A which closes the opening 12C ^〃 tool 21 ^〃 tip 21A ^〃 is through the possible slit 24 ^〃〃 provided, narrowing form the cut 24 ^〃 width w ^〃 than the tool engagement portion 22 ^〃 width W2 of. And when passing through the tool 21 ^〃 tip 21A ^〃 the break 24 ^〃, cuts 24 ^〃 are pushed apart elastically deformed to engage the tool engagement portion 22 ^〃 in this state, and the tool 21 ^〃 times by dynamic it is possible to adjust the water spray amount by rotating the valve 13 ^〃, it is pulled out of the tool 21 ^〃 slit 24 ^〃〃 closes to restore the valve 13 without detaching the covering 23 ^〃 It can be rotated.

Further, by communicating with the end of the gap 31 ^{〃 in} the longitudinal direction A ^〃 and penetrating through the hole 25 ^{、, the} tool 21 ^{回 動} is rotated when the tip 21A ^工具 of the tool 21 ^〃 is passed through the cut 24 ^や. when the local stress at the edge of the slit 24 ^〃 can be dispersed also occur.

Moreover, the cuts 24 ^〃 length l ^〃 is the that formed shorter than the length L2 of the tool engagement portion 22, it is possible to reduce the penetration of dust from the covering 23 ^〃 cuts 24 ^〃.

  As described above, the cover according to the present invention can be applied to various uses such as screw shafts of bolts of various devices in addition to the watering nozzle.

It is a disassembled perspective view which shows Example 1 of this invention. It is sectional drawing which shows Example 1 of this invention. It is a perspective view of the principal part which shows Example 1 of this invention. It is a disassembled perspective view which shows Example 2 of this invention. It is sectional drawing which shows Example 2 of this invention. It is a perspective view of the principal part which shows Example 2 of this invention. It is a disassembled perspective view which shows Example 3 of this invention.

Explanation of symbols

3 Nozzle body 9 Upper surface 9A Mounting hole 9B Opening
12 Mounting hole
12C opening
13 Valve (Rotating shaft)
21 tools
21A tip
24 cuts
25 holes
31 Clearance w W Width

Claims (4)

  A tool engaging portion engageable with the tip of the tool is formed by an elastic body provided to close the opening at the opening of the mounting hole in which the tip of the rotating shaft is rotatably inserted. In the cover, a cover or a gap through which the tip of the tool can pass is provided in a cover body that closes the opening.   The cover according to claim 1, wherein a wide hole is formed so as to penetrate at an end in a longitudinal direction of the cut or gap.   A sprinkling nozzle is formed by inserting a water sprinkling amount adjusting valve having a tool engaging portion that can engage with the tip of the tool on the upper end surface into a mounting hole provided on the upper surface side, and the mounting hole of the sprinkling nozzle In the cover of the valve of the watering nozzle formed by an elastic body provided so as to be fitted to the opening of the nozzle and closing the opening, the tip of the tool can penetrate the cover body closing the opening A cover for a valve of a watering nozzle, characterized in that a cut or gap is provided, and the width of the cut or gap is formed to be substantially the same as or narrower than the width of the tool engaging portion.   4. A cover for a valve of a watering nozzle according to claim 3, wherein a wide hole is formed so as to penetrate at a longitudinal end of the cut or gap.

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