JP3139028U - Aqua Gun - Google Patents

Abstract

An aqua gun capable of adjusting the amount of water sprayed by lever operation.
A lever 32 is rotatably supported on a handle 12 and a flow port 52 communicating with a small diameter portion 41 is formed at an inlet of a small diameter portion 41 connected to a large diameter portion 42 of a cylinder 13. The piston 71 is movably accommodated in the cylinder 13, and the lever 32 is locked to the piston rear end 72 extending from the cap 61. A valve portion 75 to be inserted into the flow passage 52 of the cylinder 13 is formed in the piston 71, and a lap region 113 in which the outer peripheral surface 111 of the valve portion 75 and the inner peripheral surface 112 of the cylinder 13 face each other is set. When the lever 32 is operated, the piston 71 is retracted by the lever 32 to open the through-flow port 52, and then the lap amount 114 of the lap region 113 is reduced in proportion to the displacement amount 121 of the lever 32. It is configured so that the amount of water spray is proportional.
[Selection] Figure 2

Description

  The present invention relates to an aqua gun used for watering plants and flowers, washing cars, and the like.

  Conventionally, aqua guns have been used for watering plants and flowers and washing cars.

  A handle for gripping is provided on the gun body of the aqua gun, and a lever for operation is provided on the handle. A piston is connected to the lever, and a valve body for water stop is formed at the tip of the piston.

  The valve body is configured to open and close a flow passage opening of a cylinder through which water for sprinkling flows, and by operating the lever to open and close the flow passage opening with the valve body, It is comprised so that the water supplied from can be sprinkled from the water sprinkling part of the said cylinder tip through the said through-flow port.

  However, such an aqua gun is configured such that the valve body at the tip of the piston opens the flow opening when the piston is retracted by lever operation.

  For this reason, when the said valve body opens the said flow opening, it is comprised so that water may be sprinkled from the said aqua gun, and the flow rate by which the water sprayed from the said aqua gun with respect to the opening degree of the lever which shows the said lever displacement amount Increases as the opening degree of the lever reaches a predetermined value, as shown by a characteristic curve 1001 in FIG.

  Thereby, the amount of watering could not be adjusted by lever operation.

  This invention is made | formed in view of such a conventional subject, and it aims at providing the aqua gun which can adjust the amount of watering by lever operation.

  In order to solve the above-mentioned problem, in the aqua gun according to claim 1 of the present invention, the amount of water flowing through the cylinder is controlled by operating the lever provided in the gun body and moving the piston in the cylinder. The aqua gun is characterized in that the length of the piston in the cylinder is set to be equal to the stroke amount from the operation start point of the lever to immediately before the operation end point.

  Thereby, fine control of water volume is attained only by operation of a lever.

  Further, in the aqua gun according to the second aspect, in the aqua gun that operates a piston by operating a lever provided on the gun body to open and close the flow port of the watering cylinder, the aqua gun is inserted into the flow port of the cylinder. A valve portion is provided on the piston, and a lap region is set in which the outer peripheral surface of the valve portion and the inner peripheral surface of the cylinder face each other, and the wrap amount of the lap region is proportional to the displacement amount of the lever. Set to change.

  That is, the piston that operates in response to the lever operation is provided with a valve portion that is inserted into the flow port of the watering cylinder, and the outer peripheral surface of the valve portion and the inner peripheral surface of the cylinder face each other. The lap area is set.

  For this reason, when the piston is operated in accordance with the lever operation, the lap amount in the lap region is changed by the piston being operated in accordance with the displacement amount of the lever. A corresponding amount of water flows through the cylinder through the flow port.

  At this time, the wrap amount of the wrap region is set to change in proportion to the displacement amount of the lever. For this reason, the water of the flow volume according to the displacement amount of the said lever can be sprinkled.

  As described above, in the aqua gun according to the present invention, the length of the piston in the cylinder is set to be the same as the stroke amount from the operation start point of the lever to immediately before the operation end point. Can be controlled.

  Further, in the aqua gun according to the second aspect, by operating the piston in accordance with the amount of displacement of the lever and changing the amount of lap in the lap region, water having a flow rate corresponding to the change in the amount of lap is supplied to the flow opening. It is possible to flow through the inside of the cylinder and spray water.

  Therefore, the amount of water spray can be adjusted based on the operation amount of the lever.

  At this time, the lap amount is set to change in proportion to the displacement amount of the lever. For this reason, the amount of water spray can be adjusted in proportion to the operation amount of the lever.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 to FIG. 3 are views showing an aqua gun 1 according to the present embodiment. The aqua gun 1 is used when watering a plant or a flower or washing a car.

  The gun body 11 of the aqua gun 1 is integrally formed with a handle 12 for gripping and a cylinder 13 connected to the upper end of the handle 12, and the cylinder 13 extends in the distal direction. I'm out.

  A water supply hose is connected to the proximal end portion of the handle 12 (not shown), and a supply path 21 for supplying water from the hose is formed in the handle 12. ing. The water spraying part 14 is provided in the front-end | tip part of the said cylinder 13 (refer FIG. 1), and it is comprised so that the water supplied to the said cylinder 13 from the said supply path 21 can be sprinkled from the said water sprinkling part 14. FIG. .

  As shown in detail in FIGS. 2 and 3, a support column 31 is erected on the back surface of the handle 12, and the upper end of a lever 32 is rotatably supported at the tip of the support column 31. Has been. As a result, the lever 32 is gripped together with the handle 12, and the lever 32 can be operated by gripping.

  A small diameter portion 41 is formed on the distal end side of the cylinder 13, and a large diameter portion 42 having a larger diameter than the small diameter portion 41 is formed on the proximal end side. The large-diameter portion 42 is connected to the supply path 21 and is configured to be supplied with water from the supply path 21.

  A stepped portion 51 is formed between the large diameter portion 42 and the small diameter portion 41, and an inlet of the small diameter portion 41 provided continuously to the large diameter portion 42 communicates with the small diameter portion 41. A flow port 52 is formed.

  A cap 61 is provided at the rear end portion of the cylinder 13, and the cap 61 is screwed to the rear end portion of the cylinder 13. As a result, the rear end of the large-diameter portion 42 is closed by the cap 61.

  A piston 71 is accommodated in the cylinder 13, and the piston 71 is held movably in the length direction. The piston 71 includes a small-diameter piston rear end portion 72, a medium-diameter piston central portion 73 provided on the front end side of the piston rear end portion 72, and a large diameter provided on the front end side from the piston central portion 73. The large-diameter step portion 74 and a valve portion 75 (piston) provided on the distal end side of the large-diameter step portion 74.

  The piston rear end portion 72 passes through the cap 61 via an O-ring 81, and the upper end portion of the lever 32 is fitted in a portion of the piston rear end portion 72 extending outward from the cap 61. Locked together. Thus, by operating the lever 32 together with the handle 12, the lever 32 can be tilted around the support point 82 by the support column 31 and the piston 71 can be moved backward. .

  In addition, a ring-shaped fitting member 91 is loosely fitted to the piston rear end portion 72 at a position on the front end side of the cap 61, and between the fitting member 91 and the large-diameter stepped portion 74. The coil spring 92 is elastically supported. Thereby, the piston 71 is urged toward the distal direction.

  The valve part 75 is formed in a cylindrical shape, and the valve part 75 is formed in a size to be inserted into the flow port 52 of the cylinder 13. The corner portion 101 formed on the proximal end side of the valve portion 75 is configured to abut on the stepped portion 51 formed between the small diameter portion 41 and the large diameter portion 42. The flow opening 52 can be closed by

  In this aqua gun 1, a lap region 113 is set in which the outer peripheral surface 111 of the valve portion 75 and the inner peripheral surface 112 of the small diameter portion 41 of the cylinder 13 face each other, and the piston 32 is operated by operating the lever 32. The lap amount 114 is configured to decrease as the 71 is moved backward.

  At this time, the aqua gun 1 is configured such that the lap amount 114 of the lap region 113 changes in proportion to the displacement amount 121 of the lever 32.

  Thus, when the lever 32 is gripped and operated together with the handle 12, the piston 71 is retracted at the distal end portion of the lever 32, and the corner portion 101 on the base end side of the valve portion 75 is moved to the small diameter portion. 41 and the large-diameter portion 42 are separated from the step portion 51, so that the lap amount 114 of the lap region 113 is reduced in proportion to the displacement amount 121 of the lever 32 after opening the flow passage 52. As a result, the flow rate in the wrap region 113 is increased, and the opening degree of the lever indicated by the displacement 121 of the lever 32 and the flow port 52 are increased as shown by the characteristic curve 131 in FIG. Thus, the flow rate of water sprayed from the water spraying portion provided in the cylinder 13 is proportional.

  Thereby, the length (lap amount) of the piston 71 fitted in the cylinder 13 in the cylinder 13 is set to be the same as the stroke amount (displacement amount) from the operation start point of the lever 32 to immediately before the operation end point. .

  In the present embodiment according to the above configuration, the piston 71 that operates according to the lever operation is provided with a valve portion 75 that is inserted into the flow opening 52 of the watering cylinder 13. A lap region 113 is set in which the outer peripheral surface 111 of the cylinder 13 and the inner peripheral surface 112 of the cylinder 13 face each other.

  For this reason, when the piston 71 is operated according to the lever operation, the lap amount 114 of the lap region 113 is changed by the piston 71 being operated according to the displacement amount 121 of the lever 32. Water with a flow rate corresponding to the change in the lap amount 114 flows into the small diameter portion 41 of the cylinder 13 through the flow port 52.

  For this reason, by operating the piston 71 in accordance with the displacement amount 121 of the lever 32 to vary the wrap amount 114 of the lap region 113, water having a flow rate corresponding to the change in the lap amount 114 is obtained. Water can be supplied to the water spraying portion on the tip end side of the cylinder 13 through the water flow port 52.

  Therefore, the amount of water spray can be adjusted based on the operation amount of the lever 32.

  At this time, the lap amount 114 of the lap region 113 is set to change in proportion to the displacement amount 121 of the lever 32.

  For this reason, the water of the flow volume according to the displacement amount 121 of the said lever 32 can be sprinkled, and the amount of water spraying can be adjusted in proportion to the operation amount of the said lever 32. FIG.

  That is, the length (lap amount 114) in the cylinder 13 of the piston 71 fitted in the cylinder 13 is set to be the same as the stroke amount (displacement amount 121) from the operation start point of the lever 32 to immediately before the operation end point. Therefore, fine control of the amount of water can be performed by operating only the lever 32.

  In the present embodiment, the aqua gun 1 in which the lever 32 is supported on the back surface of the handle 12 is shown. However, the present invention is not limited to this shape.

  For example, as shown in FIG. 5, the present invention can be applied to the aqua gun 1 in which a lever 32 is supported on the front surface portion of the handle 12.

It is sectional drawing which shows one embodiment of this invention. It is sectional drawing of the principal part which shows the same embodiment. It is sectional drawing of the principal part which shows the time of the aqua gun of the embodiment fully opened. It is a figure which shows the characteristic curve of the embodiment. It is sectional drawing which shows other embodiment. It is a figure which shows the characteristic curve of the conventional aqua gun.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Aqua gun 11 Gun body 12 Handle 13 Cylinder 32 Lever 52 Flow port 71 Piston 75 Valve part 111 Outer peripheral surface 112 Inner peripheral surface 113 Lap area 114 Lap amount 121 Displacement amount

Claims (2)

An aqua gun that operates a lever provided in the gun body to move the piston in the cylinder and control the amount of water flowing through the cylinder,
The length of the piston in the cylinder is set to be the same as the stroke amount from the operation start point of the lever to immediately before the operation end point. In the aqua gun that operates the lever provided on the gun body to actuate the piston and open and close the flow port of the watering cylinder,
A valve portion to be inserted into the flow port of the cylinder is provided in the piston, a lap region is set in which the outer peripheral surface of the valve portion and the inner peripheral surface of the cylinder face each other, and the displacement amount of the lever The aqua gun is characterized in that the lap amount of the lap region is changed in proportion.

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