Water gun holder and method for stopping water flow from a water gun

Abstract

To improve the efficiency of shutting off water from a water gun that has become stuck in a high-pressure water jet. [Solution] The water gun holder 10 has an insertion port 40 into which the spray nozzle 28 is inserted, and comprises a spray space component 30 which constitutes a spray space that receives high-pressure water sprayed from the spray nozzle 28, a water receiving part that receives the high-pressure water, a gun support part 34 which supports the water gun 14, and an overall support part 36 which supports the entire spray space component 30 and the gun support part 34. The spray space component 30 has a drain port 44 which is formed to open the spray space toward at least one of the direction in which the high-pressure water is sprayed and a direction intersecting the spray direction. The method for stopping the water flow of a water gun comprises the steps of inserting the spray nozzle 28 of the water gun 14, which has stopped spraying high-pressure water, into the insertion port 40, supporting the water gun 14 with the gun support part 34, and stopping the water flow of the water gun 14.

Description

Technical Field

[0001] The present invention relates to a water gun holder used when stopping the water flow of a water gun in which the injection of high-pressure water has stopped, and a method for stopping the water flow of the water gun.

Background Art

[0002] In operations such as chiseling concrete of buildings or roads, removing coating films, and cleaning the outer walls of buildings, a water gun that injects high-pressure water toward an object may be used. A general conventional water gun includes an injection nozzle and a trigger that is pulled by the fingers of an operator. When the trigger is pulled, high-pressure water is injected, and when the trigger is released, the high-pressure water stops. However, in operations such as chiseling concrete, crushed concrete fragments or the like may enter the gap of the trigger and prevent the trigger from returning, resulting in the inability to stop the injection of high-pressure water.

[0003] In such a case, the operator needs to stop the water flow by supporting the water gun and manually adjusting it so that the trigger returns, stopping the operation of the high-pressure water generation device, or stopping the water supply to the water gun. Conventionally, however, there has been no water gun holder for supporting a water gun in which the injection of high-pressure water has stopped. Therefore, the operator has to support the water gun with one hand and perform the water flow stopping operation with the other hand, resulting in poor workability.

[0004] Patent Document 1 below discloses a spray gun stand (water gun holder) for supporting a spray gun when draining water accumulated in the pipeline of the spray gun (water gun). This spray gun stand has a cover that forms an accommodation space for accommodating the injection nozzle. When supporting the spray gun, the injection nozzle is inserted into an insertion port formed at one end of the cover.

[0005] However, this spray gun stand is designed to guide the water discharged from the spray nozzle into the containment space through an inlet to a drain hole located outside the containment space. Therefore, when supporting a spray gun that has been continuously spraying high-pressure water, there was a risk that the spray gun would move due to a reaction force in the opposite direction to the direction of the high-pressure water spray, causing the spray nozzle to come out of the inlet. As a result, the worker had to hold the spray gun with one hand while performing the water-stopping operation with the other, which resulted in poor work efficiency. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Utility Model Publication No. 63-173388 [Overview of the project]

[0007] The present invention was made to address the above-mentioned problems and aims to provide a water gun holder and a method for stopping the water flow of a water gun that can improve the workability of stopping the water flow of a water gun that has become unable to stop spraying high-pressure water.

[0008] To achieve the above objective, the water gun holder according to the present invention is characterized in that it is a water gun holder for temporarily supporting a water gun configured to spray high-pressure water from a spray nozzle, and comprises: a spray space component having an insertion port into which the spray nozzle is inserted and forming a spray space for receiving high-pressure water sprayed from the spray nozzle inserted into the insertion port; a water receiving portion provided in the spray space component for receiving high-pressure water sprayed from the spray nozzle; a gun support portion supporting the water gun with the spray nozzle inserted into the insertion port; and an overall support portion supporting the entire spray space component and the gun support portion, wherein the spray space component has a drain port formed to open the spray space toward at least one of the spray direction of the high-pressure water sprayed from the spray nozzle and a direction intersecting the spray direction.

[0009] In this configuration, the operator can easily stop the water flow of a water gun that has become stuck in a high-pressure water jet. Specifically, if the water gun becomes stuck in a high-pressure water jet during use, the operator inserts the jet nozzle into the insertion port of the jet space component and supports the water gun with the gun support. The high-pressure water then jetted from the jet nozzle into the jet space is received and depressurized in the water receiving section, and then discharged to the outside of the jet space through the drain port. The depressurized high-pressure water discharged from the drain port is formed to open the jet space in at least one direction, either in the direction of the high-pressure water jet or in a direction intersecting the jet direction. This suppresses the flow of high-pressure water from the water receiving section towards the insertion port, preventing the jet nozzle from coming out of the insertion port. Therefore, the operator can stop the water flow by releasing their hand from the water gun, adjusting the trigger to return to its original position, stopping the operation of the high-pressure water generator, or stopping the water supply to the water gun. In addition to shutting off the water flow from a water gun, this water gun holder can also be used as a temporary holder for a shut-off water gun during work. Furthermore, this water gun holder can be used for test firing to check the condition of the high-pressure water discharge from the water gun or the shut-off of the discharge after discharge before starting work.

[0010] Another feature of the water gun holder according to the present invention is that the spray space component is formed in a cylindrical shape.

[0011] In this configuration, the movement of the injection nozzle inserted into the insertion port can be suppressed by the peripheral wall of the cylindrical injection space component.

[0012] Another feature of the water gun holder according to the present invention is that the water receiving portion has a buffer portion that enlarges the area that receives the high-pressure water sprayed from the spray nozzle and provides buffering.

[0013] In this configuration, the impact of the high-pressure water sprayed from the nozzle hitting the water receiving section can be mitigated by the buffer section.

[0014] Another feature of the water gun holder according to the present invention is that the buffer portion is configured to be movable in the spraying direction, and the water receiving portion is positioned ahead of the buffer portion in the spraying direction and has an elastic portion that is elastically deformed when the buffer portion is pressed by high-pressure water sprayed from the spray nozzle.

[0015] In this configuration, the elastic part undergoes elastic deformation when the buffer part is pressed by the high-pressure water sprayed from the nozzle, thereby mitigating the impact when the high-pressure water hits the water receiving part.

[0016] Another feature of the water gun holder according to the present invention is that the water receiving portion is positioned between the buffer portion and the elastic portion, and has an auxiliary buffer portion that is formed to be pointed in a conical or pyramidal shape on the buffer portion side.

[0017] In this configuration, the surface of the auxiliary buffer, which is formed in a conical or pyramidal shape, can receive high-pressure water. Compared to the case where there is no auxiliary buffer, a larger area can be secured for the part of the water receiving section that is hit by high-pressure water, and the impact when high-pressure water hits the water receiving section can be effectively mitigated.

[0018] Another feature of the water gun holder according to the present invention is that the buffer portion is formed to be pointed in a conical or pyramidal shape on the insertion side.

[0019] In this configuration, a large surface area can be secured for the part of the buffer that is hit by high-pressure water, and the impact when high-pressure water hits the water receiving part can be effectively mitigated.

[0020] Another feature of the water gun holder according to the present invention is that the buffer portion has a water passage through which high-pressure water passes in the direction of the jet.

[0021] In this configuration, high-pressure water that hits the buffer can be drawn into the buffer to mitigate the impact.

[0022] Another feature of the water gun holder according to the present invention is that, in a state where the injection nozzle is inserted into the insertion port, there is a connecting portion that connects any one of the injection space forming portion, the gun support portion, and the overall support portion to the water gun, and the length of the connecting portion is determined such that the injection nozzle does not come out of the insertion port.

[0023] With this configuration, it is possible to prevent the water gun from falling off the water gun holder.

[0024] Another feature of the water gun holder according to the present invention is that the overall support portion has leg portions configured to support the entire injection space forming portion and the gun support portion in an inclined state where the insertion port faces obliquely upward.

[0025] With this configuration, it is easy for an operator to insert the injection nozzle of the water gun into the insertion port facing obliquely upward.

[0026] Another feature of the water gun holder according to the present invention is that the injection space forming portion and the gun support portion are integrally formed in a long and continuous manner, and the overall support portion has two leg portions formed in a rod shape. During use, the entire injection space forming portion and the gun support portion and the two leg portions are combined to form a tripod. When not in use, the entire injection space forming portion and the gun support portion and the two leg portions are folded so as to be parallel to each other.

[0027] With this configuration, since the entire injection space forming portion and the gun support portion are used as part of the tripod, the structure of the overall support portion can be simplified and the manufacturing cost can be reduced. Also, when not in use, the entire water gun holder can be folded compactly for storage.

[0028] Another feature of the water gun holder according to the present invention is that the insertion port has a smooth inner surface that gradually widens toward the outside of the injection space.

[0029] In this configuration, the operator can easily insert the spray nozzle along the inner surface of the insertion port.

[0030] To achieve the above objective, the water shut-off method for a water gun according to the present invention is characterized by a water gun holder comprising: an injection space component having an insertion port into which the spray nozzle of the water gun is inserted and constituting an injection space for receiving high-pressure water sprayed from the injection nozzle; a water receiving portion provided in the injection space component for receiving high-pressure water sprayed from the injection nozzle; and a gun support portion for supporting the water gun, wherein the injection space component has a drain port formed to open the injection space toward at least one of the injection direction of the high-pressure water sprayed from the injection nozzle and a direction intersecting the injection direction, and the method for shutting off water from a water gun comprises a nozzle insertion step of inserting the spray nozzle of the water gun, which has become unable to stop spraying high-pressure water, into the insertion port; a gun support step of supporting the water gun with the gun support portion; and a water shut-off step of shutting off water from the water gun.

[0031] In this configuration, when the water-stopping process is performed, the high-pressure water sprayed from the spray nozzle is received and depressurized in the water receiving section, and then discharged from the drain outlet in at least one direction, either in the spraying direction or a direction intersecting the spraying direction. This suppresses the flow of high-pressure water from the water receiving section towards the insertion port. Therefore, the operator can easily perform the water-stopping operation without worrying about the spray nozzle coming out of the insertion port. [Brief explanation of the drawing]

[0032] [Figure 1] This is a front view showing the water gun holder in use according to the first embodiment. [Figure 2] This is a perspective view showing the configuration of a water gun holder according to the first embodiment. [Figure 3]This diagram shows the configuration of the injection space and the gun support section, where (A) is a front view, (B) is a cross-sectional view along line IIIB-IIIB in (A), and (C) is a cross-sectional view along line IIIC-IIIC in (A). [Figure 4] This is a front view showing the configuration of the water receiving section. [Figure 5] This is a side view showing the legs of the overall support structure in a folded state. [Figure 6] (A) is a front view showing the configuration of the water receiving section of the water gun holder according to the second embodiment, and (B) is a front view showing the configuration of the water receiving section of the water gun holder according to the third embodiment. [Figure 7] (A) is a front view showing the configuration of the water receiving section of the water gun holder according to the fourth embodiment, and (B) is a front view showing the configuration of the water receiving section of the water gun holder according to the fifth embodiment. [Figure 8] This is a front view showing the configuration of the overall support section of the water gun holder according to the sixth embodiment. [Figure 9] This is a front view showing the configuration of the spray space component and the gun support component of the water gun holder according to the seventh embodiment. [Modes for carrying out the invention]

[0033] The water gun holder and water gun shutoff method according to the present invention will be described below with reference to the drawings.

[0034] Figure 1 is a front view showing the usage state of a water gun holder 10 according to the first embodiment of the present invention. As shown in Figure 1, a typical high-pressure water jet system 12 used for tasks such as chipping concrete from buildings and roads, stripping paint films, and cleaning the exterior walls of buildings comprises a water gun 14, a high-pressure water generator 16, a water supply pipe 18 for supplying high-pressure water generated by the high-pressure water generator 16 to the water gun 14, and an on / off valve 20 provided in the water supply pipe 18.

[0035] The water gun 14 shown in Figure 1 comprises a main body 22 to which the downstream end of the water supply pipe 18 is connected, and a grip 24, a trigger 26, and a spray nozzle 28 provided on the main body 22. High-pressure water is sprayed from the spray nozzle 28 when the trigger 26 is pulled by the fingers of the operator holding the grip 24, and the high-pressure water stops when the trigger 26 is released.

[0036] In tasks such as chipping concrete using a water gun 14, crushed concrete fragments may enter the gap in the trigger 26, causing the trigger 26 to become stuck and preventing the high-pressure water from being sprayed continuously. In such cases, the worker temporarily supports the water gun 14 with the water gun holder 10 to stop the water flow from the water gun 14.

[0037] (Configuration of the water gun holder according to the first embodiment) Figure 2 is a perspective view showing the configuration of the water gun holder 10 according to the first embodiment. Figure 3 is a diagram showing the configuration of the spray space component 30 and the gun support component 34, where (A) is a front view, (B) is a cross-sectional view taken along line IIIB-IIIB in (A), and (C) is a cross-sectional view taken along line IIIC-IIIC in (A). Figure 4 is a front view showing the configuration of the water receiving component 32. Figure 5 is a side view showing the legs 58 of the overall support component 36 in a folded state.

[0038] As shown in Figure 2, the water gun holder 10 comprises a spray space component 30, a water receiving portion 32 (Figure 4), a gun support portion 34, an overall support portion 36, and a connecting portion 38.

[0039] The injection space component 30 shown in Figure 2 is a bottomed cylindrical portion that constitutes the injection space S (Figures 3(B), (C)) that receives high-pressure water sprayed from the injection nozzle 28 of the water gun 14 (Figure 1). One end of the injection space component 30 is provided with an insertion port 40 into which the injection nozzle 28 is inserted, and the other end is provided with a bottom plate portion 42 (Figure 4), and the peripheral wall portion is provided with a plurality of drainage ports 44. In other words, the injection space component 30 of this embodiment is configured as a bottomed cylindrical tubular member having an insertion port 40, a bottom plate portion 42, and a plurality of drainage ports 44. The material of the injection space component 30 is not particularly limited, but it is desirable to use a metal material that is easy to ensure strength, such as iron, stainless steel, and aluminum.

[0040] As shown in Figure 2, the insertion port 40 is formed in a funnel shape with a smooth inner surface that gradually widens outward from the injection space S (Figures 3(B), (C)). When the direction in which high-pressure water is ejected from the injection nozzle 28 inserted into the insertion port 40 is defined as the "injection direction," each of the multiple drainage ports 44 is formed to be the same shape and size so as to open the injection space S in a direction intersecting the injection direction.

[0041] As shown in Figures 3(A), (B), and (C), in this embodiment, each of the multiple drain ports 44 is formed in a linear shape extending in the axial direction of the injection space component 30, and these drain ports 44 are spaced apart from each other in the axial and circumferential directions. The spacing between the drain ports 44 in the axial direction is set to be approximately the same as the length of the drain port 44, and the spacing between the drain ports 44 in the circumferential direction is set to be an angular spacing of approximately 120 degrees. The shape and arrangement of the drain ports 44 are not particularly limited and may be changed as appropriate as long as the drainage of high-pressure water is not impaired.

[0042] Furthermore, as shown in Figure 2, the upper end of the injection space component 30 (gun support portion 34) is provided with a mounting portion 46 having a through hole 46a for attaching the connecting portion 38, and two bolts 48 for attaching the two legs 58 of the overall support portion 36. In addition, the lower end of the injection space component 30 is provided with two bolts 50 for attaching the anti-slip portion 60 of the overall support portion 36.

[0043] As shown in Figure 4, the water receiving section 32 is provided in the injection space configuration section 30 and is the part that receives the high-pressure water injected from the injection nozzle 28, and has a bottom plate section 42, a buffer section 52, an elastic section 54, and an auxiliary buffer section 56.

[0044] The buffer section 52 is a part that buffers the high-pressure water sprayed from the injection nozzle 28 by increasing the area that receives it, and has a cylindrical first section 53a and a conical second section 53b provided at the end of the first section 53a on the insertion port 40 side. In other words, the buffer section 52 is formed with a conical tip on the insertion port 40 side, which increases the area of ​​the surface of the buffer section 52 that is hit by high-pressure water. Also, as shown in Figure 3(C), the buffer section 52 is constructed by filling a metal mesh bag 52a with steel wool (metal scouring pad) 52b, and a fine water passage Q is secured inside the buffer section 52 that allows high-pressure water to pass through in the direction of injection. In other words, the buffer section 52 has a water passage Q that allows high-pressure water to pass through in the direction of injection, which increases the area of ​​the inside of the buffer section 52 that is hit by high-pressure water.

[0045] The buffer unit 52 is configured to be movable in the direction of the high-pressure water sprayed from the spray nozzle 28. Throughout the entire range of movement of the buffer unit 52, a drain port 44 (Figure 3(A)) is provided around the buffer unit 52. Therefore, the high-pressure water that hits the buffer unit 52 and is scattered is easily discharged from the drain port 44.

[0046] As shown in Figure 4, the elastic part 54 is positioned ahead of the buffer part 52 in the direction of high-pressure water injection, and is configured to elastically deform when the buffer part 52 is pressed by the high-pressure water injected from the injection nozzle 28. The elastic part 54 in this embodiment is a coil spring, which is compressed when the buffer part 52 is pressed by the high-pressure water and returns to its original state when the high-pressure water stops. The type of elastic part 54 is not particularly limited, and a leaf spring or rubber may be used instead of a coil spring.

[0047] As shown in Figure 4, the auxiliary buffer section 56 is the part that receives and buffers high-pressure water that penetrates the buffer section 52 in the injection direction and high-pressure water that passes around the buffer section 52. The auxiliary buffer section 56 is formed with a conical or pyramidal tip on the buffer section 52 side, which increases the surface area of ​​the auxiliary buffer section 56 that is struck by high-pressure water. The auxiliary buffer section 56 in this embodiment is made of a material that does not allow water to penetrate. Therefore, high-pressure water that hits the auxiliary buffer section 56 is easily discharged from the drain port 44 (Figure 3(A)) provided around the auxiliary buffer section 56 after hitting the surface of the conical or pyramidal tip.

[0048] The gun support portion 34 shown in Figure 2 is the part that supports the water gun 14 when the spray nozzle 28 shown in Figure 1 is inserted into the insertion port 40. In this embodiment, the entire cylindrical member that constitutes the spray space component 30 forms the gun support portion 34. In other words, the spray space component 30 and the gun support portion 34 are integrally formed from a single cylindrical member, with the portion of the cylindrical member that constitutes the spray space S being the spray space component 30, and the entire cylindrical member being the gun support portion 34.

[0049] As shown in Figure 2, the overall support section 36 is the part that supports the elongated, continuous, and integrally formed injection space component section 30 and gun support section 34 in an inclined state with the insertion opening 40 facing diagonally upward, and has two legs 58 and an anti-slip section 60.

[0050] As shown in Figure 5, the leg portion 58 is formed in a rod shape from a metal material such as iron, and a through hole 68 is formed at the upper end of the leg portion 58 through which a bolt 48 provided in the injection space component 30 (gun support portion 34) is inserted. The leg portion 58 is attached to the injection space component 30 (gun support portion 34) by screwing a nut 70 onto the bolt 48 inserted through the through hole 68.

[0051] As shown in Figure 2, the anti-slip section 60 has a base section 72 formed in the shape of a disc from a metal material such as iron, and two support plate sections 74 formed on the upper surface of the base section 72, facing each other. As shown in Figure 5, the support plate sections 74 have through holes 76 through which bolts 50 provided in the injection space component 30 (gun support section 34) are inserted. The anti-slip section 60 is attached to the injection space component 30 (gun support section 34) by screwing nuts 78 onto the bolts 50 inserted through the through holes 76.

[0052] As shown in Figure 2, when the water gun holder 10 is in use, the entire spray space component 30 and gun support 34 and the two legs 58 are assembled to form a tripod. As shown in Figure 5, when the water gun holder 10 is not in use, the entire spray space component 30 and gun support 34 and the two legs 58 are folded so that they are parallel to each other.

[0053] As shown in Figure 2, the connecting portion 38 is the part that connects the spray space component 30 (gun support portion 34) and the water gun 14 when the spray nozzle 28 (Figure 1) is inserted into the insertion port 40. The connecting portion 38 in this embodiment has a wire 62, a first hook 64 provided at one end of the wire 62, and a second hook 66 provided at the other end of the wire 62, with the first hook 64 hooked into the through hole 46a of the mounting portion 46.

[0054] As shown in Figure 1, when the operator supports the water gun 14 with the water gun holder 10, the second hook 66 is hooked onto the hook portion 24a of the water gun 14 by the operator's hand. The length of the connecting portion 38 is set so that the spray nozzle 28 does not come out of the insertion port 40, so that the water gun 14 does not fall out of the water gun holder 10.

[0055] (How to stop a water gun from leaking) When using the water gun 14 shown in Figure 1 for tasks such as breaking up concrete, crushed concrete fragments may enter the gap in the trigger 26, causing the trigger 26 to become stuck and preventing the high-pressure water from being sprayed continuously. In such cases, the worker should temporarily support the water gun 14 with the water gun holder 10 to stop the water flow. The method for stopping the water flow of the water gun 14 will be described below.

[0056] When shutting off the water flow from the water gun 14, the worker first prepares the water gun holder 10 in a usable state. That is, the entire spray space component 30 and gun support section 34 and the two legs 58 are assembled to form a tripod. Note that the water gun holder 10 can also be used to support the water gun 14 when the high-pressure water spray has stopped, so the worker may prepare the water gun holder 10 in a usable state at the construction site at all times.

[0057] Once the water gun holder 10 is ready, the operator performs the "nozzle insertion process" by inserting the spray nozzle 28 of the water gun 14, which is now continuously spraying high-pressure water, into the insertion port 40. Since the insertion port 40 is formed in a funnel shape with a smooth inner surface that gradually widens outward toward the outside of the spray space S, the operator can easily perform the "nozzle insertion process" by guiding the spray nozzle 28 with the inner surface of the insertion port 40.

[0058] Next, the worker performs a "gun support process" in which the water gun 14 is supported by the gun support section 34. In this embodiment, the entire cylindrical member constituting the spray space component 30 is the gun support section 34, so the worker inserts the entire spray nozzle 28 into the cylindrical member, i.e., the gun support section 34, and hooks the main body 22 onto the insertion opening 40. Then, the worker hooks the second hook 66 of the connecting section 38 onto the hooking section 24a of the water gun 14.

[0059] With the water gun 14 supported by the gun support section 34, the high-pressure water sprayed from the spray nozzle 28 is received and depressurized in the water receiving section 32 (Figure 4), and then discharged from the drain port 44 in a direction intersecting the spray direction. This suppresses the flow of high-pressure water from the water receiving section 32 towards the insertion port 40 (Figure 1), thereby preventing the spray nozzle 28 from coming out of the insertion port 40.

[0060] After supporting the water gun 14 through the above steps, the worker releases their hand from the water gun 14 and performs a "water shut-off process" to stop the water flow from the water gun 14. Specifically, this involves tasks such as adjusting the trigger 26 to return to its original position, stopping the operation of the high-pressure water generator 16, and operating the on / off valve 20 to stop the water supply to the water gun 14.

[0061] (Effects of the first embodiment) According to the first embodiment, the above configuration can achieve the following effects. Specifically, the drain port 44 shown in Figure 3(C) is formed to open the injection space S in a direction intersecting the injection direction of high-pressure water, so that the flow of high-pressure water from the water receiving section 32 toward the insertion port 40 (Figure 1) in the injection space S can be suppressed, and the injection nozzle 28 can be prevented from coming out of the insertion port 40. Therefore, the operator can release their hand from the water gun 14 and perform tasks such as adjusting the trigger 26 to return to its original position, stopping the operation of the high-pressure water generator 16, and operating the on / off valve 20 to stop the water supply to the water gun 14.

[0062] Since the injection space component 30 shown in Figure 1 is formed in a cylindrical shape, the movement of the injection nozzle 28 inserted into the insertion port 40 can be suppressed by the peripheral wall of the injection space component 30.

[0063] The water receiving section 32 shown in Figure 4 has a buffer section 52 that enlarges the area that receives the high-pressure water sprayed from the spray nozzle 28 and provides buffering, so the impact when the high-pressure water hits the water receiving section 32 can be mitigated by the buffer section 52.

[0064] The water receiving section 32 shown in Figure 4 is positioned further forward in the spraying direction than the buffer section 52 and has an elastic section 54 that is elastically deformed when the buffer section 52 is pressed by the high-pressure water sprayed from the spray nozzle 28. As a result of the elastic deformation of the elastic section 54, the impact when the high-pressure water hits the water receiving section 32 can be mitigated.

[0065] As shown in Figure 4, the auxiliary buffer portion 56 is formed with a conical or pyramidal tip on the buffer portion 52 side. Compared to the case where the auxiliary buffer portion 56 is absent, a larger surface area can be secured for the part of the water receiving portion 32 that is hit by high-pressure water, and the impact when high-pressure water hits the water receiving portion 32 can be effectively mitigated.

[0066] As shown in Figure 4, the buffer portion 52 is formed with a conical or pyramidal tip on the insertion opening 40 (Figure 1) side, which allows for a wider surface area of ​​the part of the water receiving portion 32 that is hit by high-pressure water, and effectively mitigates the impact when high-pressure water hits the water receiving portion 32.

[0067] The buffer section 52 shown in Figure 3(C) has a water passage Q that allows high-pressure water to pass through in the direction of injection, so that the high-pressure water that hits the buffer section 52 can be taken into the buffer section 52 and the impact can be mitigated.

[0068] The length of the connecting portion 38 shown in Figure 1 is set so that the spray nozzle 28 does not come out of the insertion port 40, thereby preventing the water gun 14 from falling out of the water gun holder 10.

[0069] As shown in Figure 2, the legs 58 of the overall support unit 36 ​​are configured to support the entire spray space component 30 and gun support unit 34 in an inclined state with the insertion opening 40 facing diagonally upward. Combined with the fact that the insertion opening 40 is funnel-shaped, this makes it easy to insert the spray nozzle 28 (Figure 1) of the water gun 14 into the insertion opening 40. Furthermore, since the entire spray space component 30 and gun support unit 34 are used as part of a tripod, the structure of the overall support unit 36 ​​can be simplified and manufacturing costs can be reduced.

[0070] As shown in Figure 5, when the water gun holder 10 is not in use, the entire spray space component 30 and gun support portion 34 and the two legs 58 are folded so that they are parallel to each other, allowing the entire water gun holder 10 to be folded and stored compactly.

[0071] (modified version) In carrying out the present invention, the invention is not limited to the first embodiment described above, and various modifications are possible as long as they do not depart from the purpose of the invention. That is, in the first embodiment, the water gun 14 shown in Figure 1 is configured for commercial use at construction sites and other similar locations, but the water gun 14 may be configured for household use such as car washing or cleaning exterior structures. In this case, the water gun 14 may be connected to a water supply via a water supply pipe 18.

[0072] In the first embodiment, the injection space component 30 is formed in the shape of a bottomed cylindrical shape, but the injection space component 30 may be formed in other shapes such as a bottomed rectangular tube shape.

[0073] In the first embodiment, each of the multiple drain ports 44 is formed to have the same shape and size as the others, but they may be formed to have different shapes and sizes. Furthermore, the "direction intersecting the injection direction" as the direction in which the injection space S is opened at the drain port 44 is not limited to the "direction perpendicular to the injection direction," but may be appropriately changed depending on the shape and size of the drain port 44.

[0074] In the first embodiment, the auxiliary buffer portion 56 is formed of a material that does not allow high-pressure water to penetrate, but the auxiliary buffer portion 56 may be formed of a material that allows high-pressure water to penetrate, such as steel wool (metal scouring pad), similar to the buffer portion 52.

[0075] In the first embodiment, the buffer portion 52 is formed in a conical shape, but the shape of the buffer portion 52 is not particularly limited and may be formed in a pyramidal shape, a bullet shape, or a hemispherical shape. Also, pebbles or sponge may be packed into the metal mesh bag 52a instead of steel wool 52b, and the metal mesh bag 52a may be omitted if the steel wool 52b or sponge can maintain its shape. Furthermore, the buffer portion 52 may be formed of a material that does not allow high-pressure water to penetrate.

[0076] In the first embodiment, the connecting portion 38 is configured to connect the spray space component 30 or the gun support portion 34 to the water gun 14, but the connecting portion 38 may also be configured to connect the overall support portion 36 to the water gun 14. In other words, the connecting portion 38 may be configured to connect the water gun 14 to any one of the spray space component 30, the gun support portion 34, and the overall support portion 36.

[0077] In the first embodiment, the connecting portion 38 is composed of a wire 62, a first hook 64, and a second hook 66. However, a rod or the like may be used instead of the wire 62, and bolts, nuts, or other connecting members may be used instead of the first hook 64 and the second hook 66.

[0078] Figure 6(A) is a front view showing the configuration of the water receiving section 80 of the water gun holder according to the second embodiment, and Figure 6(B) is a front view showing the configuration of the water receiving section 82 of the water gun holder according to the third embodiment. Figure 7(A) is a front view showing the configuration of the water receiving section 84 of the water gun holder according to the fourth embodiment, and Figure 7(B) is a front view showing the configuration of the water receiving section 86 of the water gun holder according to the fifth embodiment.

[0079] In the first embodiment, the water receiving section 32 shown in Figure 4 has a bottom plate section 42, a buffer section 52, an elastic section 54, and an auxiliary buffer section 56. However, as shown in Figure 6(A), the water receiving section 80 may omit the auxiliary buffer section 56 and have only a bottom plate section 42, a buffer section 52, and an elastic section 54. Also, as shown in Figure 6(B), the water receiving section 82 may omit the elastic section 54 and the auxiliary buffer section 56 and have only a bottom plate section 42. Furthermore, as shown in Figure 7(A), the water receiving section 84 may omit the buffer section 52, the elastic section 54, and the auxiliary buffer section 56 and have only a bottom plate section 42.

[0080] Even in these cases, the high-pressure water injected from the injection nozzle 28 (Figure 1) into the injection space S is received and depressurized by the water receiving sections 80, 82, and 84, so the flow of high-pressure water from the water receiving sections 80, 82, and 84 toward the insertion port 40 can be suppressed, and the injection nozzle 28 can be prevented from coming out of the insertion port 40.

[0081] In the first embodiment, the drain port 44 of the injection space component 30 is formed to open the injection space S only in a direction intersecting the injection direction of the high-pressure water. However, the drain port 44 may be formed to open the injection space S only in the injection direction of the high-pressure water, or it may be formed to open in both the injection direction and a direction intersecting the injection direction. In other words, the drain port 44 may be formed to open the injection space S in at least one of the injection direction of the high-pressure water and a direction intersecting the injection direction.

[0082] When the drain port 44 opens the injection space S in the direction of high-pressure water injection, multiple drain ports 44 may be formed in the bottom plate portion 42, as shown in the water receiving portion 86 in Figure 7(B). Alternatively, the injection space component 30 may be formed in a cylindrical shape without a bottom plate portion 42, provided that a water receiving portion can be formed. These configurations may also be used in the water receiving portion 32 shown in Figure 4 and the water receiving portions 80 and 82 shown in Figures 6(A) and (B).

[0083] Figure 8 is a front view showing the configuration of a water gun holder 88 according to the sixth embodiment. In the first embodiment, the overall support portion 36 is composed of two legs 58 and an anti-slip portion 60, but as shown in Figure 8, the overall support portion 90 may be composed of a fixing member 94 that fixes the entire spray space component 30 and gun support portion 34 to a pipe member 92 installed at a construction site. The type of fixing member 94 is not particularly limited, but Figure 8 shows an example using a wire.

[0084] Figure 9 is a front view showing the configuration of the water gun holder 96 according to the seventh embodiment. In the first embodiment, the spray space component 30 and the gun support component 34 are made of a single cylindrical member, but they may be made of parts with different shapes. For example, as shown in Figure 9, the spray space component 98 may be made of a cylindrical part, and the gun support component 100 may be made of the cylindrical part (spray space component 98) and a half-cylindrical part. The insertion opening 102 of the spray space component 98 may be formed in the shape of a half-funnel with a smooth inner surface that gradually widens outward toward the outside of the spray space S, and two stoppers 104 may be formed facing each other at the tip of the gun support component 100 to prevent the water gun 14 from moving laterally.

[0085] When supporting the water gun 14 with the water gun holder 96, the operator first inserts the tip of the spray nozzle 28 into the insertion port 102, which is located lower than the tip of the gun support part 100. Then, while positioning the base end of the spray nozzle 28 between the two stoppers 104, the operator places the water gun 14 on the gun support part 100. Therefore, it is easy for the operator to insert the tip of the spray nozzle 28 into the insertion port 102 and to place the water gun 14 on the gun support part 100. [Explanation of symbols]

[0086] Q...Water channel, S...Injection space, 10...Water gun holder, 12...High-pressure water injection system, 14...Water gun, 16...High-pressure water generator, 18...Water supply pipe, 20...On / off valve, 22...Main body, 24...Grip, 24a...Hook, 26...Trigger, 28...Injection nozzle, 30...Injection space component, 32...Water receiving part, 34...Gun support part, 36...Overall support part, 38...Connecting part, 40...Insertion port, 42...Bottom plate part, 44...Drain port, 46...Mounting part, 46a...Through hole, 48, 50...Bolt, 52...Buffer part, 52a...Metal mesh bag, 52b...Steel 53a...First part, 53b...Second part, 54...Elastic part, 56...Auxiliary cushioning part, 58...Leg part, 60...Anti-slip part, 62...Wire, 64...First hook, 66...Second hook, 68...Through hole, 70...Nut, 72...Base part, 74...Support plate part, 76...Through hole, 78...Nut, 80, 82, 84, 86...Water receiving part, 88...Water gun holder, 90...Overall support part, 92...Pipe member, 94...Fixing member, 96...Water gun holder, 98...Spray space component part, 100...Gun support part, 102...Insertion port, 104...Stopper.

Claims

1. A water gun holder for temporarily supporting a water gun configured to spray high-pressure water from a nozzle, A spray space component having an insertion port into which the spray nozzle is inserted, and forming a spray space that receives high-pressure water sprayed from the spray nozzle inserted into the insertion port, A water receiving section is provided in the aforementioned injection space configuration and receives the high-pressure water injected from the injection nozzle, A gun support section that supports the water gun when the spray nozzle is inserted into the insertion port, The system comprises an overall support portion that supports the entire injection space component and the gun support portion, The water gun holder has a drain port formed to open the injection space component to at least one of the injection direction of the high-pressure water ejected from the injection nozzle and a direction intersecting the injection direction.

2. The water gun holder according to claim 1, wherein the injection space component is formed in a cylindrical shape.

3. The water gun holder according to claim 2, wherein the water receiving portion has a buffer portion that enlarges the area for receiving the high-pressure water sprayed from the spray nozzle and provides buffering.

4. The buffer portion is configured to be movable in the injection direction, The water gun holder according to claim 3, wherein the water receiving portion is positioned ahead of the buffer portion in the spraying direction and has an elastic portion that is elastically deformed when the buffer portion is pressed by high-pressure water sprayed from the spray nozzle.

5. The water gun holder according to claim 4, wherein the water receiving portion is disposed between the buffer portion and the elastic portion and has an auxiliary buffer portion that is pointed in a conical or pyramidal shape on the buffer portion side.

6. The water gun holder according to any one of claims 3 to 5, wherein the buffer portion is formed to be pointed in a conical or pyramidal shape on the insertion side.

7. The water gun holder according to any one of claims 3 to 5, wherein the buffer portion has a water passage that allows high-pressure water to pass through in the direction of injection.

8. With the spray nozzle inserted into the insertion port, the water gun is provided with a connecting portion that connects the water gun to one of the spray space component, the gun support portion, and the overall support portion. The water gun holder according to any one of claims 3 to 5, wherein the length of the connecting portion is determined to such an extent that the spray nozzle does not come out of the insertion opening.

9. The water gun holder according to any one of claims 3 to 5, wherein the overall support portion has legs configured to support the entire spray space component and the gun support portion in an inclined state in which the insertion opening faces diagonally upward.

10. The injection space component and the gun support component are formed integrally in a long, continuous manner. The overall support section has two legs formed in the shape of a rod, The water gun holder according to claim 9, wherein when in use, the entire spray space component and the gun support component and the two legs are assembled to form a tripod, and when not in use, the entire spray space component and the gun support component and the two legs are folded so that they are parallel to each other.

11. The water gun holder according to any one of claims 3 to 5, wherein the insertion port has a smooth inner surface that gradually widens outward toward the outside of the spray space.

12. A method for stopping water flow from a water gun using a water gun holder comprising: an insertion port into which the spray nozzle of the water gun is inserted, and a spray space component that constitutes a spray space for receiving high-pressure water sprayed from the spray nozzle; a water receiving component provided in the spray space component for receiving high-pressure water sprayed from the spray nozzle; and a gun support component for supporting the water gun, wherein the spray space component has a drain port formed to open the spray space toward at least one of the spray direction of the high-pressure water sprayed from the spray nozzle and a direction intersecting the spray direction, A nozzle insertion step in which the spray nozzle of the water gun, which has become unable to stop spraying high-pressure water, is inserted into the insertion port, A gun support step in which the water gun is supported by the gun support part, A method for stopping the water flow of a water gun, comprising a water-stopping step for stopping the water flow of the water gun.

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