Multi-channel anti-freezing water gun

Abstract

The utility model discloses a multiple water channel anti-freezing water gun, including gun body, water outlet shower head, control switch and water inlet joint etc, mainly sets up independent water inlet pipe in the tail part of gun body, and the one end of this water inlet pipe is sealedly connected with gun body through first sealing member, and is communicated to the water outlet passage in the head part of gun body, and the on-off of water outlet passage can be controlled by control switch, and the other end of water inlet pipe is sealedly connected with the water inlet joint of gun body tail part through second sealing member. Thus, the sealed, not water protection cavity of intercommunication is formed between the outer wall of water inlet pipe and the inner wall of gun body, and its beneficial effect lies in: first, the multiple water channel structure is constituted through protection cavity, and the possible freeze crack risk is isolated outside gun body, second, when the accumulated water in water inlet pipe expands and cracks due to low temperature, the water flowing out of the crack is contained in protection cavity, and will not leak to the outside of gun body, third, the service life of water gun in low temperature environment is greatly prolonged, and also guarantees the working stability under extremely cold weather conditions.

Description

Technical Field

[0001] This utility model relates to an antifreeze water gun, and more particularly to an antifreeze water gun that prevents the gun body from freezing and cracking through a multi-channel waterway structure. Background Technology

[0002] Existing antifreeze water guns typically include a gun body, a water nozzle located at the head of the gun body, a water inlet connector located at the tail of the gun body, and a control switch located on the gun body. The head of the gun body has a water outlet channel that connects to the water nozzle, while the tail of the gun body has an integrally formed water inlet channel. This water inlet channel is connected to the water inlet connector, and the operation of the control switch can control the opening and closing of the water inlet channel and the water outlet channel, thereby realizing the water outlet nozzle's water output or water stoppage.

[0003] However, the drawback of this existing technology is that its water inlet channel is machined directly inside the gun body, forming a single integral structure. Therefore, even when the water gun is turned off, water remains in the inlet channel. In extremely cold environments, this water, due to direct contact with the low temperature, is highly susceptible to freezing and expansion. Because the resulting expansion stress has nowhere to dissipate, it eventually causes the gun body itself to crack. Once the gun body cracks, the entire water gun becomes ineffective. This not only significantly shortens the product's lifespan but also makes it difficult to operate stably in extremely cold climates, thus failing to meet the true needs of users. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect that the water inlet channel of the existing antifreeze water gun is integrally formed with the gun body, which is prone to cracking due to the freezing expansion of internal water under severe cold conditions. The aim is to provide a multi-channel antifreeze water gun that can effectively prevent the gun body from cracking in extremely cold environments, thereby significantly extending the product's service life and ensuring its working stability.

[0005] The technical problem of this utility model is solved by the following technical solution: A multi-channel antifreeze water gun includes a gun body, a water nozzle located at the head of the gun body, a water inlet connector located at the tail of the gun body, and a control switch located on the gun body. The head of the gun body has a water outlet channel communicating with the water nozzle, and the tail of the gun body has an independent water inlet pipe. One end of the water inlet pipe is sealed to the gun body through a first sealing member and communicates with the water outlet channel. The control switch controls the opening and closing of the water inlet pipe and the water outlet channel. The other end is sealed to the water inlet connector through a second sealing member. A sealed, water-free protective cavity is formed between the outer wall of the water inlet pipe and the inner wall of the gun body.

[0006] The protective cavity is configured to contain water flowing out of the crack in the water inlet pipe when it freezes and cracks, preventing leakage to the outside of the gun body.

[0007] The protective cavity is an annular cavity.

[0008] The gun body is provided with a horizontal hole that vertically penetrates and interrupts the water outlet channel, thereby dividing the water outlet channel into a front channel and a rear channel. The control switch is installed in the horizontal hole.

[0009] A water inlet is provided between the horizontal hole and the rear channel, which are interconnected.

[0010] The control switch includes a valve spindle disposed in the transverse hole, a water-sealing gasket disposed on the valve spindle, and a U-shaped trigger disposed outside the gun body. The two ends of the valve spindle extend from the two ends of the transverse hole and are respectively connected to the two ends of the U-shaped trigger. The U-shaped trigger is moved back and forth, driving the valve spindle to rotate around the axis of the transverse hole, and causing the water-sealing gasket to open or close the water inlet hole in a sealing manner, thereby controlling the opening and closing of the rear channel and the front channel.

[0011] The sealing gasket has an arc surface on the side facing the valve spindle, which fits tightly against the outer surface of the valve spindle; the sealing gasket has a positioning hole, and the valve spindle has a positioning block that mates with the positioning hole.

[0012] One end of the water inlet pipe is inserted into the rear channel, and the first sealing element is fitted onto one end of the water inlet pipe and makes a sealing contact with the inner circumferential surface of the rear channel.

[0013] The water inlet connector includes a shaft tube and an insert tube coaxially disposed around the shaft tube. The insert tube is fixedly inserted into the port at the rear of the gun body and simultaneously abuts against the end face of the other end of the water inlet tube. The shaft tube is inserted into the other end of the water inlet tube. The second sealing element is fitted outside the shaft tube and makes sealing contact with the inner circumferential surface of the other end of the water inlet tube.

[0014] Both the first and second seals are O-rings.

[0015] Compared with the prior art, the technical solution of this utility model is to set an independent water inlet pipe inside the tail of the gun body. One end of the water inlet pipe is sealed to the gun body through a first sealing element and connected to the water outlet channel inside the head of the gun body. The connection between the water inlet pipe and the water outlet channel is controlled by a control switch. The other end of the water inlet pipe is sealed to the water inlet connector at the tail of the gun body through a second sealing element. Thus, a sealed, water-free protective cavity is formed between the outer wall of the water inlet pipe and the inner wall of the gun body. Its advantages are: first, the protective cavity forms a multi-channel structure, isolating the possible risk of freezing and cracking outside the gun body; second, when the water in the water inlet pipe expands and cracks due to low temperature, the water flowing out of the crack is contained in the protective cavity and will not leak to the outside of the gun body; third, it greatly extends the service life of the water gun in low-temperature environments and also ensures its working stability in extremely cold climates. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the present invention under water-cut conditions.

[0017] Figure 2 This is a cross-sectional view of the present invention in the water-flow state.

[0018] Figure 3 This is a cross-sectional structural diagram of the water inlet pipe under the condition of freezing and cracking at low temperature.

[0019] Figure 4 This is one of the exploded perspective views of this utility model.

[0020] Figure 5 This is another perspective exploded view of the present invention.

[0021] Figure 6 This is a schematic diagram of the water inlet pipe.

[0022] Figure 7 This is a schematic diagram of the water-sealing gasket. Detailed Implementation

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1-7 As shown, 1. Gun body, 11. Water outlet channel, 111. Front channel, 112. Rear channel, 12. Protective cavity, 13. Horizontal hole, 14. Water inlet hole, 2. Water outlet nozzle, 21. Water spray base, 22. Water distribution plate, 23. Multi-section cover, 24. Elastic pin, 25. Sealing ring, 3. Control switch, 31. Valve spindle, 311. Positioning block, 32. U-shaped trigger, 33. Pin, 4. Water inlet connector, 41. Shaft tube, 42. Insert tube, 5. Water inlet pipe, 51. Crack, 6. First seal, 7. Second seal, 8. Water sealing gasket, 81. Positioning hole, 82. Arc surface. The same labels in each figure represent the same parts.

[0025] A multi-channel antifreeze water gun, such as Figures 1-5 As shown, this is a water spraying device suitable for watering gardens or rinsing dirty items. Its core improvement lies in the structure of the tail of the gun body to solve the problem of easy freezing and cracking in extremely cold environments. The structure includes the gun body 1, the water nozzle 2 set at the head of the gun body, the water inlet connector 4 set at the tail of the gun body, and the control switch 3 set on the gun body.

[0026] The water nozzle 2 includes a water spray base 21, a water distribution plate 22 with a rotating seal installed at the front of the water spray base, and a multi-section cover 23 fixedly installed at the front of the water distribution plate. The water nozzle 2 is sealed and fixed inside the port of the gun head by the water spray base 21. A sealing ring 25 is provided between the water spray base 21 and the water distribution plate 22 as a dynamic seal. A segmented positioning mechanism, such as an elastic pin 24, is also provided to position the relative rotational position of the water distribution plate 22 so as to realize the selection of different water spray patterns.

[0027] The gun body 1 has a "7" shaped shape. The head of the gun body is provided with a water outlet channel 11 that connects to the water nozzle 2. The tail of the gun body is provided with an integrally formed cavity. The middle of the gun body, that is, the "7" shaped bend of the gun body, is provided with a horizontal hole 13 that runs horizontally through the gun body 1 from the side. This horizontal hole also vertically interrupts the water outlet channel 11, thereby dividing the water outlet channel into a front channel 111 and a rear channel 112. The horizontal hole 13 and the rear channel 112 are provided with interconnected water inlet holes 14.

[0028] The control switch 3 includes a valve spindle 31 disposed in the transverse hole 13, a water-sealing gasket 8 disposed on the valve spindle, and a U-shaped trigger 32 disposed outside the gun body 1. The valve spindle 31 and the transverse hole 13 are respectively configured as a cylindrical shaft and a cylindrical hole to form a mutual rotational fit. The two ends of the valve spindle 31 extend from the two ends of the transverse hole 13 and are respectively connected to the two ends of the U-shaped trigger 32 by pins 33 to form a fixation. Moreover, the two ends of the valve spindle 31 also contact the inner circumferential surface of the transverse hole 13 through the fitted valve core ring to form a rotational seal. In this embodiment, the valve core ring is selected as an O-ring.

[0029] The sealing gasket 8 can be made of rubber or other materials with sealing properties. It is an arc-shaped piece, and the side of the sealing gasket 8 facing the valve spindle 31 has a... Figure 7 The arc surface 82 shown fits tightly against the outer surface of the valve core shaft; the sealing gasket 8 is provided with a positioning hole 81, and the valve core shaft 31 is provided with a positioning block 311 that cooperates with the positioning hole 81, thereby forming a positioning installation between the two.

[0030] In this way, by simply operating the U-shaped trigger 32 to move it back and forth, the valve core shaft 31 can be driven to rotate in both directions around the axis of the transverse hole 13, thereby causing the sealing gasket 8 to open or close the water inlet hole 14 in a sealing manner, thus controlling the opening and closing of the rear channel 112 and the front channel 111.

[0031] An independent water inlet pipe 5 is provided inside the tail section of the gun body, that is, inside the one-piece molded cavity. One end of the water inlet pipe is sealed to the gun body 1 through a first sealing member 6, that is, as shown in the figure. Figures 1-3As shown, the top end of the water inlet pipe 5 is inserted into the rear channel 112, and the first sealing member 6 is fitted onto the top end of the water inlet pipe and makes a sealing contact with the inner circumferential surface of the rear channel 112. At this time, the water inlet pipe 5 will be sealed and connected to the rear channel 112. Therefore, the connection and disconnection between the water inlet pipe 5 and the water outlet channel 11 are also controlled by the control switch 3.

[0032] The other end of the water inlet pipe, that is Figures 1-3 The bottom end of the water inlet pipe shown is sealed to the water inlet connector 4 through the second sealing element 7. The specific structure is as follows: the water inlet connector 4 includes a shaft tube 41 and an insert tube 42 coaxially arranged around the shaft tube. The insert tube is fixedly inserted into the port at the tail of the gun body and simultaneously abuts against the end face of the bottom end of the water inlet pipe. The insert tube 42 can be fixed by threaded tightening and sealing, while the shaft tube 41 is inserted into the bottom end of the water inlet pipe, and the second sealing element 7 is fitted on the outside of the shaft tube 41 and seals against the inner circumferential surface of the bottom end of the water inlet pipe to form a sealed connection. Furthermore, since the shaft tube 41 is an internally hollow tube, after the water inlet connector 4 is connected to the water supply pipe, the water source can directly enter the water inlet pipe 5 through the shaft tube 41.

[0033] The first sealing element 6 and the second sealing element 7 can be selected from O-rings.

[0034] Then, a sealed, water-free protective cavity 12 is formed between the outer wall of the water inlet pipe 5 and the inner wall of the gun body 1. This protective cavity is an annular cavity, mainly as follows: Figure 3 The structure shown is designed so that when the water inlet pipe 5 freezes and cracks, the water flowing out of the crack 51 can be contained in the protective cavity 12 and will not leak to the outside of the gun body 1. At this time, the water gun can still be used normally for a long time, instead of being unusable at the moment of freezing and cracking. For the sake of safe use, only a new water inlet pipe 5 needs to be replaced.

[0035] The working principle and beneficial effects of this utility model are as follows: External water source such as Figure 2 As indicated by the arrow, the water flows sequentially through the shaft tube 41 of the water inlet connector 4, the water inlet pipe 5, the rear channel 112, the water inlet hole 14, and the front channel 111, finally spraying out from the water outlet nozzle 2. In extremely cold environments, the protective cavity 12 forms a multi-channel structure, isolating the potential risk of freezing and cracking outside the gun body 1. Even if the water in the water inlet pipe 5 freezes and expands, causing the water inlet pipe to rupture, the water flowing out of the crack 51 will be contained in the sealed protective cavity 12, thus isolating it from the outside of the gun body 1 and effectively preventing the gun body itself from cracking due to freezing expansion.

[0036] Because this design limits the risk of freezing and cracking to the independent water inlet pipe 5, and through the isolation effect of the protective cavity 12, the integrity of the gun body 1 and the normal use of the water gun are ensured, thereby greatly extending the product's service life and operational stability in low-temperature environments.

[0037] The basic principles and main features of this utility model have been described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-channel antifreeze water gun, comprising a gun body (1), a water nozzle (2) disposed at the head of the gun body, a water inlet connector (4) disposed at the tail of the gun body, and a control switch (3) disposed on the gun body, wherein the head of the gun body is provided with a water outlet channel (11) communicating with the water nozzle (2), characterized in that, The gun body is provided with an independent water inlet pipe (5) at the tail. One end of the water inlet pipe is sealed to the gun body (1) through a first sealing member (6) and connected to the water outlet channel (11). The control switch (3) controls the opening and closing of the water inlet pipe (5) and the water outlet channel (11). The other end is sealed to the water inlet connector (4) through a second sealing member (7). A sealed, water-free protective cavity (12) is formed between the outer wall of the water inlet pipe (5) and the inner wall of the gun body (1).

2. A freeze-proof lance according to claim 1, characterized in that The protective cavity (12) is configured to contain water flowing out of the crack (51) when the water inlet pipe (5) freezes and cracks, so as not to leak to the outside of the gun body (1).

3. A freeze-proof lance according to claim 1, wherein The protective cavity (12) is an annular cavity.

4. The freeze-proofing multiple water channel water gun according to claim 1, wherein, The gun body (1) is provided with a horizontal hole (13), which vertically penetrates and interrupts the water outlet channel (11), thereby dividing the water outlet channel (11) into a front channel (111) and a rear channel (112). The control switch (3) is installed in the horizontal hole (13).

5. A freeze-proof lance according to claim 4, characterized in that A water inlet hole (14) is provided between the horizontal hole (13) and the rear channel (112).

6. A multi-channel antifreeze water gun according to claim 5, characterized in that, The control switch (3) includes a valve core shaft (31) disposed in the transverse hole (13), a water sealing gasket (8) disposed on the valve core shaft, and a U-shaped trigger (32) disposed outside the gun body (1). The two ends of the valve core shaft (31) extend from the two ends of the transverse hole (13) and are respectively connected to the two ends of the U-shaped trigger (32). The U-shaped trigger (32) is moved back and forth, driving the valve core shaft (31) to rotate around the axis of the transverse hole (13), and driving the water sealing gasket (8) to seal and open or close the water inlet hole (14), thereby controlling the opening and closing of the rear channel (112) and the front channel (111).

7. A multi-channel antifreeze water gun according to claim 6, characterized in that, The sealing gasket (8) has an arc surface (82) on the side facing the valve spindle (31), which fits tightly against the outer surface of the valve spindle (31); the sealing gasket (8) has a positioning hole (81), and the valve spindle (31) has a positioning block (311) that cooperates with the positioning hole (81).

8. A freeze-proof lance according to claim 4, wherein One end of the water inlet pipe (5) is inserted into the rear channel (112), and the first sealing element (6) is fitted onto one end of the water inlet pipe and makes a sealing contact with the inner circumferential surface of the rear channel (112).

9. The freeze-proofing multiple water channel water gun according to claim 1, wherein, The water inlet connector (4) includes a shaft tube (41) and an insert tube (42) coaxially arranged around the shaft tube. The insert tube is fixedly inserted into the port at the tail of the gun body and simultaneously abuts against the end face of the other end of the water inlet pipe (5). The shaft tube (41) is inserted into the other end of the water inlet pipe. The second sealing element (7) is fitted outside the shaft tube (41) and seals against the inner circumferential surface of the other end of the water inlet pipe (5).

10. The freeze-proofing multiple waterway water gun according to claim 1, wherein, Both the first seal (6) and the second seal (7) are O-rings.

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