JP3000621U - Accumulator water gun - Google Patents

Abstract

(57) [Summary] [Purpose] In a water gun of the accumulator type, the water stop mechanism provided in the middle of the pressurized water passage from the tank to the nozzle was improved,
The operation force of the trigger for switching the water stop mechanism to the water-passing state is reduced. [Structure] The water stop mechanism 7 includes a cylindrical valve body 40, a spool 41 in which a valve shaft portion 52 is reciprocally inserted into a valve chamber 55 in the valve body 40, and a spool 41 to a front water stop position. It is composed of a valve spring 43 for pressing and urging. The body 46 of the valve body 40 is provided with an inlet 46 for introducing water into the valve chamber 55.
An outlet 48 for guiding water to the nozzle 10 is provided in front of. Between the inner peripheral surface of the valve body 40, which faces the valve chamber 55, and the outer peripheral surface of the valve shaft portion 52 of the spool 41, O-rings 44, 44 for sealing water are arranged at both front and rear ends so that they do not move.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water gun in which water filled in a tank is pressurized with compressed air in advance, and when a trigger is operated, pressurized water is ejected from a nozzle at a tip.

[0002]

[Prior art]

 Water guns of this type are known from Japanese Utility Model Laid-Open No. 63-148088, Japanese Patent Laid-Open No. 26379/1992, and the like. Each of them has a tank for storing and pressurizing water on the body, and a water shut-off mechanism that is opened by a trigger in the middle of the pressurized water channel led out from the tank. In the former water gun, an air pump is built into the tank. In the latter case, an air pump is installed in the body and its pressurizing piston is reciprocated by a slider to compress the air. The slider can slide back and forth along the barrel of the body. The water stop mechanism in the latter Japanese Patent Laid-Open No. 4-263795 also serves as a safety valve for releasing pressure when the inside of the tank is excessively pressurized. Specifically, pull out an elastically deformable tube from the tank, sandwich this tube vertically with a stopper and a pinch bar that is urged by a spring toward the stopper, and crush and deform the tube to close the pressurized water channel. There is. The pinch bar is connected to the trigger and can be operated away from the tube against the spring pressure, but when the internal pressure of the tube exceeds a certain value, it is pushed up against the spring pressure and excessively pushed. Relieve pressure. A check valve is provided on the partition wall facing the tank mounting port to prevent pressurized air or water in the tank from flowing back to the air pump side.

In the former water shut-off mechanism of Japanese Utility Model Laid-Open No. 63-148088, a pipe shaft-shaped internal valve, a cylinder slidably fitted on the internal valve, and a cylinder are pressed toward the internal valve and urged. It is composed of a spring, etc., and the inner back end wall of the cylinder is brought into contact with the shaft end of the internal valve to close the inlet passage opening at the inner back end wall. When the trigger is squeezed, the cylinder moves backward against the spring and the water stop mechanism switches from the water stop state to the water pass state. In the present invention, an O-ring is used as a water-stop element in the water-stop mechanism, but JP-A-62-21400 discloses that an O-ring is used as a seal material for a piston of a reciprocating water hoop. There is.

[0004]

[Problems to be solved by the device]

 As described above, in the water stop mechanism in which the elastically deformable tube is crushed by the pinch bar by the spring force, the water cannot be surely stopped when the pressure in the tank is large. Increasing the set pressure of the spring can improve the water blocking function, but it causes a disadvantage that the operation resistance of the trigger increases. Since the same part of the tube is crushed and deformed by a pinch bar to stop the water, the tube easily deteriorates at the corresponding part, and there is also a disadvantage that sufficient durability cannot be obtained. Even in the case of a water stop mechanism in which the cylinder is pressed against the internal valve by a spring, water cannot be reliably stopped unless the spring pressure is set sufficiently high, and the trigger cannot be operated lightly. The inlet passage of the cylinder is connected to the tank via a tube, but the fact that this tube must be retracted together with the cylinder also contributes to the increase in operating resistance. A reciprocating air pump uses two check valves to allow only air to be sent into the tank. In many cases, air pumps for toys use reed valves or disc valves with simple structures as check valves. However, this type of simple valve has insufficient sealing force. Even when a spring is also used to urge the valve to move toward the closed position, if a foreign object is caught between the valve and the valve seat, the valve function will be immediately lost and a malfunction may occur.

An object of the present invention is to obtain a pressure accumulating water gun equipped with a water shut-off mechanism that can easily operate a trigger and can reliably maintain a water shut-off state even when a large pressure acts on a pressurized water channel. It is in. An object of the present invention is to provide a pressure-accumulation water gun that has a simple structure, can reliably prevent backflow of air and water, and can continuously exhibit a valve function even when foreign matter is caught. An object of the present invention is to improve the durability of a check valve and a water stop mechanism, which are important functional parts in a pressure accumulation type water gun. An object of the present invention is to obtain a water gun that can keep the accumulated pressure in the tank at a predetermined value and can be used safely.

[0006]

[Means for Solving the Problems]

 The water gun of the present invention, as shown in FIG. 3, has a body 1, a tank 2 that is detachably attached to a mounting port 8 of the body 1, and a reciprocating motion that pressurizes and supplies air into the tank 2 through an air passage 23. -Type air pump 6, a water stop mechanism 7 provided in the middle of a pressurized water passage 37 which is exposed from the inside of the tank 2, and a switch mechanism for switching the water stop mechanism 7 between a water stop state and a water flow state. The trigger 5 and the nozzle 10 provided at the end of the pressurized water channel 37 are provided. As shown in FIG. 1, the water shut-off mechanism 7 includes an inlet 46 through which the water in the tank 2 passes through the pressurized water passage 37 to the internal valve chamber 55, and the water introduced into the valve chamber 55 through the pressurized water passage 37 and the nozzle 10. Valve body 40 having an outlet 48 for passing through, a spool 41 in which a valve shaft portion 52 is reciprocally inserted into a valve chamber 55 in the valve body 40, and a biasing movement of the spool 41 toward a water stop position. And a valve spring 43. Between the inner peripheral surface of the valve body 40 facing the valve chamber 55 and the outer peripheral surface of the valve shaft portion 52 of the spool 41, when the spool 41 is at the water stop position, the valve shaft portion 52 is slidably circumscribed. An O-ring 44 for sealing water is arranged so as not to move. Further, an interlocking piece 54 that is operated to be moved by the trigger 5 is provided near the shaft end of the valve shaft portion 52 of the spool 41 protruding outside the valve body 40. More specifically, as shown in FIG. 1, the valve body 40 has a cylindrical body case 47 having an opening 46 at the front end and an inlet 46 in the body, and a body case 47 having an outlet 48. The valve shaft portion 52 of the spool 41 is inserted from the rear end wall of the main body case 47 so that the front end portion of the spool 41 crosses the valve chamber 55 toward the outlet 48. Between the inner peripheral surface of the body case 47 facing the valve chamber 55 and the outer peripheral surface of the valve shaft portion 52 of the spool 41, two O-rings 44 and 44 are arranged at both front and rear ends. A compression coil type holding spring 45 is arranged between the rings 44, 44 so as to press the O-rings 44, 44 and prevent the floating of the O-rings 44, 44. The holding spring 45 is fitted around the valve shaft portion 52.

In addition, the outlet end of the air passage 23 led out from the air pump 6 is connected to the air inlet 24 provided on the inner back wall of the mounting opening 8 of the body 1 as shown in FIGS. The port 24 is provided with a check valve 21 that allows air to flow only from the air pump 6 side toward the tank 2. The check valve 21 includes a tubular valve case 29 having an empty chamber communicating with the air inlet 24, and a vent hole 31 provided on the outer wall of the tubular wall of the valve case 29. It is composed of a tubular rubber ring 30 that closes.

[0008]

[Action]

 Since the water shut-off mechanism 7 uses the reciprocating spool 41 as a valve element to switch the valve state and seals water with the O-ring 44 provided between the valve body 40 and the spool 41, the internal pressure of the tank 2 is high. Even in such a case, it is not necessary to increase the spring force of the valve spring 43 for urging the spool 41 for movement. The sealing force for stopping water is obtained by the O-ring 44, and the spring force of the valve spring 43 is sufficient if it can move to the water-stop position by overcoming the frictional force of the spool 41 with the O-ring 44. Is. In FIG. 4, the check valve 21 composed of the tubular valve case 29 and the rubber ring 30 mounted on the tubular wall of the valve case 29 has a rubber ring 30 which receives its own elasticity and internal pressure in the tank 2. Since it closely adheres to the outer peripheral surface of the valve case 29 and simultaneously closes the vent hole 31 and its peripheral portion, backflow can be reliably prevented. Even if a foreign substance is caught in the inner surface of the rubber ring 30, the foreign substance and its peripheral portion are simultaneously sealed and the valve function is continuously exerted. Since the water stop mechanism 7 is sealed by the O-ring 44 and the rubber ring 30 is used for check, the operation parts of the water stop mechanism 7 and the check valve 21 are not deformed due to wear or fatigue.

[0009]

[Effect of device]

 In the present invention, the water shut-off mechanism 7 is switched between the water shut-off state and the water flow state by the spool 41 that reciprocates in the valve chamber 55 by the trigger 5, and the water is sealed at the water shut-off position by the valve shaft portion 52. Since the O-ring 44 is provided between the valve body 40 and the valve body 40, the spring force of the valve spring 43 for urging the spool 41 to move to the water stop position is small even when the internal pressure of the tank 2 is high. Can handle in half. Therefore, while surely stopping water, the spool 41 can reduce the operation force when it is moved backward by the trigger 5 against the valve spring 43. Moreover, in the valve chamber 55, since the water pressure is evenly applied to the peripheral surface of the valve shaft portion 52 at the sealing position, the trigger 5 can be operated lightly with a small force. The check valve 21 of the air pump 6 is composed of a tubular valve case 29 and a rubber ring 30 that is in close contact with the tubular wall, and the elasticity of the rubber ring 30 itself and the internal pressure of the tank 2 acting on the rubber ring 30. Since the vent hole 31 is held closed by and, backflow can be reliably prevented even if the internal pressure of the tank 2 fluctuates. Even if foreign matter is bitten into the inner surface of the rubber ring 30, the rubber ring 30 is deformed to seal the vent hole 31 and its surroundings together with the foreign matter. For example, when the tank 2 is filled with water mixed with mud. Even in this case, the failure of the check valve 21 due to the foreign matter being bitten can be eliminated and the water gun can be continuously used. As described above, the O-ring 44 and the rubber ring 30 are used in the operating parts of the water stop mechanism 7 and the check valve 21, which are important functional parts in the accumulator type water gun, to prevent wear and abrasion caused by repeated use. Since fatigue deformation is avoided, the water resistance of the water stop mechanism 7 and the check valve 21 is improved, and a water gun that has a longer life and is less likely to malfunction than the conventional example can be obtained.

[0010]

【Example】

 1 to 8 show an embodiment of an accumulator type water gun according to the present invention. In FIG. 2, the water gun is formed in a model of a submachine gun. Reference numeral 1 is a body, 2 is a tank detachably mounted above the body 1, 3 is a barrel integrally provided with the body 1, 4 is a grip for pumping which is supported on the barrel 3 so as to be slidable back and forth, and 5 is a trigger. The body 1 is formed by joining a pair of left and right body divided bodies that are divided by a vertical plane that passes through the barrel axis in a lid-like manner. As shown in FIG. 3, a reciprocating air pump 6 and a water stop mechanism 7 are arranged inside the hollow of the body 1, and the inside of a mounting port 8 for the tank 2 provided at the upper rear end of the body 1 is arranged. A connecting plate 9 is arranged in the. The barrel 3 is formed in a stepped shape in order to position the barrel 3 as high as possible without hindering the front-back movement of the piston rod 20 of the air pump 6. The nozzle 10 is arranged inside the tip of the barrel 3. The tank 2 is a cylindrical blow-molded product having an opening at one end, and has a male screw 12 for mounting on the outer peripheral surface of the cylindrical wall of the opening. As shown in FIG. 4, the tank 2 can be detachably integrated with the body 1 by screwing the male screw 12 into the female screw (not shown) on the inner peripheral surface of the mounting port 8 so that the end wall 2a of the opening is The seal ring 25 mounted on the front surface of the connecting plate 9 is closely attached. In order to support the tank 2 containing water in a stable manner, the body of the tank 2 is supported by a holder 13 in a state of being laid horizontally, and a pair of tank stays 14 imitating a sighting tool are provided on the upper front end of the body 1. The holder 13 has a circular ring portion 15 for supporting the tank 2 as shown in FIG. 7, and a lower end of the ring portion 15 is provided with an inverted T-shaped leg portion 16 which is fixed by being sandwiched between left and right body divided bodies. is there. The tank stay 14 is circumscribed on the lower half peripheral surface of the tank 2 to support the cylinder side of the tank 2 from below.

3 and 4, the air pump 6 includes a cylinder 18 having a syringe barrel shape, a piston 19 that reciprocates in the cylinder 18, and a piston rod 20 that connects the piston 19 and the front grip 4. Separately, check valves 21 and 22 are provided on the connecting plate 9 and the piston 19, respectively. When the grip 4 is reciprocally moved back and forth along the barrel 3, air flowing into the cylinder 18 is pressurized by the piston 19. The pressurized air is sent to the tank 2 via the air passage 23 connected to the rear end of the cylinder 18. The air passage 23 is made of a plastic tube, and its outlet end is connected to the air inlet 24 of the connecting plate 9. 4 and 5, the connecting plate 9 is made of a disk-shaped plastic molded product, and an annular groove 26 for fitting the seal ring 25 is formed along the front surface of the outer peripheral edge of the connecting plate 9 and is surrounded by the annular groove 26. An air inlet 24 and a cylindrical boss 27 for passing a pressurized water passage 37 are provided above and below the plate surface. A check valve 21 which allows air to flow only from the air pump 6 toward the tank 2 is externally fitted and fixed to the front side of the air inlet 24. 4 and 5, the check valve 21 includes a bottomed cylindrical valve case 29 having a rear end opened and a flange projecting to the front end, and a cylindrical case mounted on the cylindrical wall of the valve case 29. It consists of a mulling 30. Vent holes 31 are provided at the upper and lower portions of the cylinder wall of the valve case 29 so as to penetrate the inside and outside. After the rubber ring 30 is attached to the valve case 29, the valve case 29 is externally fitted and fixed to the air inlet 24, so that the outside of the vent hole 31 that communicates with the air inlet 24 via the empty chamber in the valve case 29. Is closed by a rubber ring 30 to prevent movement of air and water from the outer surface of the rubber ring 30 toward the vent hole 31. When the tank 2 is attached to the mounting port 8, the check valve 21, the cylindrical boss 27, and the pressurized water passage 37 penetrating the cylindrical boss 27 enter the tank 2 as shown in FIG.

In FIG. 4, the piston 19 of the air pump 6 is made of a plastic molded product formed in a multi-stage tubular shape. An O-ring 32 for airtight sealing is attached to the front large diameter tubular portion, and the rear end small diameter tubular portion is mounted. The check valve 22 is integrally provided in the. The check valve 22 is formed similarly to the check valve 21 described above. That is, the ventilation holes 34 are provided in the upper and lower sides of the cylindrical wall of the valve case portion 33 so as to penetrate through the inside and outside, and the rubber ring 35 is attached to the outer periphery of the cylindrical wall of the valve case portion 33. When the piston 19 moves toward the rear of the cylinder 18, the rubber ring 35 comes into close contact with the cylinder wall to close the vent hole 34, and when the piston 19 moves toward the front, as shown in FIG. A part of the ring 35 is deformed so as to be lifted up from the cylinder wall to allow air to flow into the cylinder 18 from the vent hole 34. Also in the check valve 21, the rubber ring 30 is similarly deformed to allow the flow of the pressurized air. When the grip 4 is repeatedly reciprocated, the air pump 6 operates and air is sent into the tank 2 mounted in the mounting port 8 through the air passage 23, and the water in the tank 2 is pressurized with compressed air. As shown in FIGS. 2 and 7, the grip 4 is composed of a pair of left and right divided bodies, and the front and rear of the divided body are fastened and fixed with screws 65. In order to guide the pressurized water to the nozzle 10, one end of the pressurized water passage 37 is supported by the connecting plate 9 and the other end is connected to the nozzle 10. Further, the water stop mechanism 7 is provided in the middle of the pressurized water passage 37, so that the pressurized water can be intermittently fed. The pressurized water passage 37 is made of a plastic tube, and a cap 38 for weight is fixed to the end portion on the tank 2 side as shown in FIG.

In FIG. 1 and FIG. 3, the water stop mechanism 7 is located in the body 1 in front of and below the air pump 6 and above the trigger 5, and the valve main body 40, the spool 41, and the valve body 40 each made of a plastic molded product. A valve holder 42, a compression coil type valve spring 43, two O-rings 44 and a holding spring 45 incorporated in the valve body 40, and the like are provided as constituent members. The valve main body 40 is composed of a tubular main body case 47 having an inlet 46 in the body portion, and a cap 49 having an outlet 48 and externally fitted and fixed to the main body case 47 from the front to close the front surface of the opening. A regulation wall 50 is provided in the middle of the outlet 48. The pressurized water passage 37 led out from the tank 2 is connected to the inlet 46, and the pressurized water passage 37 leading to the nozzle 10 is connected to the outlet 48. The spool 41 has a valve shaft portion 52 formed of a shaft body having a circular cross section, and a spring receiving piece 53 and an interlocking piece 54 operated by the trigger 5 are vertically projected near the rear end of the valve shaft portion 52. I am doing it. The valve shaft portion 52 is reciprocally inserted into the valve chamber 55 such that the front end portion thereof projects from the rear end wall side of the main body case 47 toward the outlet 48. Then, the front end of the valve spring 43 is made to act on the spring receiving piece 53 and the interlocking piece 54 located outside the main body case 47, so that the valve spring 43 stops the front end of the valve shaft portion 52 from contacting the regulating wall 50. The entire spool 41 is urged to move toward the water position (solid line in FIG. 1). The rear end of the valve spring 43 is received by a box-shaped spring receiving frame 56 provided on the inner surface of the body 1. The lower wall 56a of the spring receiving frame 56 also has a guide function of moving the interlocking piece 54 only in the front-rear direction, and restricts the interlocking piece 54 from swinging around the valve shaft portion 52. When the spool 41 is at the water stop position in FIG. 1, the valve shaft portion 52 crosses the valve chamber 55 across the front and rear, and the front end thereof is fitted into the cylindrical wall on the outlet 48 side. In this state, in order to prevent the pressurized water that has entered the valve chamber 55 from leaking to the outlet 48 side or from the spool hole in the end wall of the main body case 47, the outer peripheral surface of the valve shaft portion 52 and the main body case 47 are prevented. Between the inner circumferential surface of the valve shaft 55 and the inner peripheral surface of the valve chamber 55, and the retaining rings 45 that press the rings 44 and 44 between the rings 44 and 44. It is fitted to. Each O-ring 44 is pressed against the outer peripheral surface of the valve shaft portion 52 and the inner peripheral surface of the valve chamber 55 to be deformed, and exerts a sealing pressure against the inner pressure of the tank 2. The holding spring 45 is composed of a compression coil spring, and pushes both the orings 44, 44 in opposite directions to prevent the respective o-rings 44 from moving or moving together with the spool 41.

The trigger 5 is a plastic molded product integrally formed with a finger hook 57, a horizontal plate-like slide portion 58, and an operation piece 59 protruding above the slide portion 58. The trigger 5 is attached to the body 1 so that the operation piece 59 is positioned adjacent to the front surface of the interlocking piece 54 of the spool 41, and the slide portion 58 is freely slidable forward and backward by a guide frame (not shown) provided in the body 1. Guide and support. When the trigger 5 is pulled and squeezed as shown by the arrow a in FIG. 1, the spool 41 withdraws to the water passage position (state of the imaginary line in FIG. 1) against the urging force of the valve spring 43 as shown by the arrow b. As a result, the inlet 46 and the outlet 48 of the valve body 40 communicate with each other via the valve chamber 55. When the operating force of the trigger 5 is released, the spool 41 is pushed back by the valve spring 43, moves forward, and returns to the water stop position. At this time, in order to prevent the tip of the valve shaft portion 52 from being caught by the O-ring 44, a tapered guide surface 60 is formed at the tip of the valve shaft portion 52. The valve holder 42 is a case for stably fixing the valve body 40 in the body 1. In FIG. 6, the valve holder 42 is formed in a rectangular box shape with an open upper surface, and the recess 62 into which the cylindrical wall of the outlet 48 is fitted and the cylindrical wall of the inlet 46 are formed on three adjacent side walls. A recess 63 into which the valve is fitted and a recess 64 for avoiding contact with the valve shaft 52 are provided. After the valve main body 40 is assembled in the valve holder 42, the valve main body 40 and the valve holder 42 are adhesively fixed so as not to move relative to each other. At this time, the cylinder wall of the inlet 46 is projected obliquely upward. This is because, as shown in FIG. 3, the piston rod 20 is located directly above the valve body 40, and the pressurized water passage 37 is arranged avoiding this. The valve holder 42, the cylinder 18, and the connecting plate 9 are all positioned and clamped by the left and right body divided bodies. The body divided bodies are press-fitted to each other, and the key portions are fastened with screws. At the time of use, water is put in the tank 2 up to about 75% of the total volume, and the rear end of the tank 2 is screwed into the mounting opening 8 of the body 1 with the muzzle facing downward. Next, the grip 4 is operated back and forth to operate the air pump 6, and compressed air is sent into the tank 2 to accumulate pressure. When the trigger 5 is squeezed in this state, the water stop mechanism 7 is opened and operated so that water can be ejected from the nozzle 10. When the trigger 5 is held in the pulled state, water is continuously ejected until the pressure in the tank 2 drops to atmospheric pressure. After that, when the grip 4 for pumping is operated back and forth again to accumulate pressure, water can be ejected again.

(Other Embodiment) FIG. 9 shows another embodiment of the present invention relating to the water stop mechanism 7. In this case, an inlet 46 and an outlet 48 are provided in the body of the main body case 47, and the opening at the rear end of the main body case 47 is closed by a cap 49. The spool 41 is divided into a valve shaft portion 52 and an operation shaft portion 67, and the operation shaft portion 67 is integrally formed with a spring receiving piece 53 and an interlocking piece 54. After the operation shaft portion 67 is inserted through the spool hole provided in the cap 49, the valve shaft portion 52 is externally fitted and fixed to the small diameter shaft portion at the tip of the operation shaft portion 67. At the water stop position shown by the solid line, grooves are formed at two peripheral surfaces of the valve shaft portion 52 sandwiching the inlet 46 in the front and rear, and the O-rings 44 and 44 are mounted in the grooves. When the spool 41 is retracted to the water flow position shown by the imaginary line against the biasing force of the valve spring 43, the inlet 46 and the outlet 48 communicate with each other via the valve chamber 55. As can be understood from this embodiment, the O-ring 44 can be mounted on the spool side, and may be mounted on the main body case 47 side if necessary. FIG. 10 shows another embodiment in which a safety valve 68 is added to the cylinder 18 of the air pump 6. The safety valve 68 here has the same structure as the check valve 22 provided in the piston 19 described in the previous embodiment, forms a valve case portion 69 integrally with the end wall of the cylinder 18, and The air vents 70 are provided at the upper and lower portions in a penetrating manner. A tubular rubber ring 71 is attached to the tubular wall of the valve case portion 69 in a state where the vent port 70 is closed from the outside. Further, a cylindrical pressure ring 72 formed of a spring plate or a plastic molded product is attached to the outer surface of the rubber ring 71. The tightening force of the pressure ring 72 compensates for the insufficient sealing force of the rubber ring 71. The pressure ring 72 is divided at one position in the circumferential direction like the retaining ring, and is mounted in a state where the whole is expanded and deformed. When the internal pressure in the tank 2 reaches a predetermined value, the safety valve 68 expands and deforms the rubber ring 71 and the pressurizing ring 72 so that the vent 70 and the space inside the body 1 communicate with each other. Disable the injection and prevent the internal pressure of the tank 2 from rising excessively.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part including a water stop mechanism.

FIG. 2 is a perspective view of the entire appearance.

FIG. 3 is a side view schematically illustrating the entire internal structure.

FIG. 4 is a vertical sectional side view showing the internal structure of the rear part of the body.

FIG. 5 is a perspective view showing a check valve and its peripheral members.

FIG. 6 is an exploded perspective view showing a valve body and a valve holder separately.

7 is a cross-sectional view taken along the line AA in FIG.

FIG. 8 is a vertical cross-sectional side view for explaining the operation of the check valve of the air pump.

FIG. 9 is a vertical sectional side view showing another embodiment of the water stop mechanism.

FIG. 10 is a vertical sectional side view showing another embodiment in which a safety valve is added to a cylinder of an air pump.

[Explanation of symbols]

 1 Body 2 Tank 5 Trigger 6 Air Pump 7 Water Stop Mechanism 8 Mounting Port 10 Nozzle 23 Air Passage 24 Inlet Port 29 Valve Case 30 Rubber Ring 31 Vent 37 Pressure Water Channel 40 Valve Body 41 Spool 43 Valve Spring 44 O-ring 46 Inlet 48 outlet 52 valve shaft 54 interlocking piece 55 valve chamber

Claims (3)

[Scope of utility model registration request] 1. A body 1, a tank 2 detachably attached to a mounting opening 8 of the body 1, and an air passage 2 in the tank 2.
Reciprocating air pump 6 that pressurizes and feeds air through 3
And the pressurized water channel 37 that has been drawn out from the inside of the tank 2
A water stop mechanism 7 provided in the middle of the water, a trigger 5 for switching the water stop mechanism 7 between a water stop state and a water flow state, and a nozzle 10 provided at the end of the pressurized water passage 37. In the accumulator type water gun, the water stop mechanism 7 includes a nozzle 46 through which an inlet 46 for passing the water in the tank 2 to the internal valve chamber 55 through the pressurized water passage 37 and the water introduced to the valve chamber 55 through the pressurized water passage 37. Exit 48 through 10
And a spool 41 in which a valve shaft portion 52 is reciprocally inserted into a valve chamber 55 in the valve body 40, and a valve spring 43 for urging the spool 41 to move toward a water stop position.
When the spool 41 is at the water stop position between the inner peripheral surface of the valve body 40 facing the valve chamber 55 and the outer peripheral surface of the valve shaft portion 52 of the spool 41, the valve shaft portion 52 is An O-ring 44, which is slidably circumscribing to seal water, is arranged so as not to move, and is moved by a trigger 5 to a position near a shaft end of a valve shaft portion 52 of a spool 41 protruding outside the valve body 40. A pressure-accumulation type water gun, which is provided with an interlocking piece 54 to be operated. 2. The valve main body 40 has a cylindrical main body case 47 having an opening 46 at the front end and an inlet 46 in the body, and an outlet 4.
A cap 4 for closing the front surface of the opening of the main body case 47 having
9 from the rear end wall of the main body case 47 to the valve shaft portion 5 of the spool 41.
2 is inserted with the front end of the spool 2 crossing the valve chamber 55 toward the outlet 48, and the inner peripheral surface of the main body case 47 facing the valve chamber 55 and the spool 41.
Two O-rings 44, 44 are arranged at the front and rear ends between the outer peripheral surface of the valve shaft 52 and the O-rings 44, 44 between the O-rings 44, 44.
2. A water gun of a pressure accumulating type according to claim 1, wherein a compression coil type holding spring 45 which presses against said No. 4 and prevents these floating motions is arranged so as to be fitted around the outer periphery of said valve shaft portion 52. 3. An air passage 23 led out from the air pump 6.
Is connected to an air inlet 24 provided on the inner back wall of the mounting port 8 of the body 1, and the check port 24 allows the air to flow only from the air pump 6 side toward the tank 2. A check valve 21 is provided, and the check valve 21 is provided on a cylindrical valve case 29 having an empty chamber communicating with the air inlet 24 and an outer circumference of a cylindrical wall of the valve case 29. The accumulator-type water gun according to claim 1 or 2, which comprises a cylindrical rubber ring 30 for closing the ventilation port 31.