Anti-freezing water gun structure

Abstract

The utility model discloses an anti-freezing water gun structure which comprises a gun body, a water inlet channel, a switch assembly used for connecting and disconnecting water flow and a spray head assembly used for adjusting water spray are arranged in the gun body, a water inlet is formed in the lower end of the gun body, a water inlet cavity is formed between the lower end of the water inlet channel and the water inlet, a guide pipe is arranged in the water inlet cavity, and a water outlet is formed in the guide pipe. The guide pipe is sleeved with a piston capable of sliding up and down, the lower end of the guide pipe is provided with a sealing structure for blocking the lower end of the water inlet cavity, and a sealing chamber is defined by the piston, the inner side wall of the water inlet cavity, the outer side wall of the guide pipe and the sealing structure on the lower half section, located below the piston, of the water inlet cavity; an elastic reset piece which elastically ejects the piston upwards is arranged in the sealing chamber, and a relay water channel which is communicated with the water inlet and the water inlet channel is formed in the guide pipe. The utility model has the advantages of simple structure, durability and long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of water guns, in particular to an anti-freezing water gun structure. Background Art

[0002] When water turns into ice, its volume increases by one tenth. For conventional water guns, the water remaining in the water gun may burst the gun body or damage the internal components of the gun body during the process of turning into ice.

[0003] There are also some antifreeze water guns on the market. For example, TWM293796U discloses an anti-cracking structure for a water spray gun. When water freezes, the volume expansion force pushes the piston into the chamber, causing some water to flow out from the through hole, eliminating the pressure of expansion on the gun body. After the ice melts, the return spring pushes the piston back to its original position, restoring the original water spraying function of the water spray gun.

[0004] But such water gun still has the following shortcomings:

[0005] 1) The spring inside is immersed in water. As the spring is directly immersed in water, long-term contact will cause corrosion on the surface of the spring, especially when using water containing impurities or more corrosive water, the spring may be damaged faster. In addition, over time, the surface of the spring may rust, which will affect its elasticity and overall mechanical properties, thereby weakening the normal function of the water gun;

[0006] 2) The spring inside is immersed in water, and the water may freeze the spring. At low temperatures, the water inside the water gun will freeze, which will not only produce expansion pressure on the space around the spring, but may also directly freeze the spring itself, causing it to be unable to function normally. In this case, even a water gun with an anti-freeze design may not work due to spring failure, reducing the reliability of the water gun in low temperature environments;

[0007] 3) The spring cannot be disassembled and replaced, making it difficult to maintain. Once the spring is damaged or needs to be cleaned, or if you want to replace a spring with a different elastic force, it is difficult to disassemble and replace;

[0008] 4) The antifreeze structure is integrated with the sprinkler head and switch control, resulting in poor adaptability, that is, the sprinkler head and switch control must be customized according to the antifreeze structure, which is only applicable to the rear-pressure gun body and cannot be applied to other types of water guns. In addition, due to the high design dependence of the antifreeze structure on the sprinkler head and switch control, any modification or replacement of these core components needs to take into account the complex interactions between them. This not only restricts users from using accessories of other brands or models for replacement or upgrading, but also brings inconvenience to the repair and maintenance of the water gun. When faced with damage or performance degradation, users may find it difficult to find a suitable replacement, or have to completely replace the entire water gun instead of just replacing the damaged part.

[0009] Therefore, it is necessary to further improve and perfect the prior art to overcome these deficiencies, and the present invention is made based on this situation. Utility Model Content

[0010] The utility model aims to overcome the deficiencies of the prior art and provide an anti-freezing water gun structure which has a simple structure, is durable and has a long service life.

[0011] The utility model is realized by the following technical solutions:

[0012] In order to solve the above technical problems, the utility model provides an anti-freezing water gun structure, including a gun body, wherein the gun body is provided with a water inlet channel, a switch assembly for turning on and off the water flow, and a nozzle assembly for adjusting the water splash, a water inlet is provided at the lower end of the gun body, a water inlet chamber is provided between the lower end of the water inlet channel and the water inlet, a guide tube is provided in the water inlet chamber, a piston that can slide up and down is sleeved on the guide tube, a sealing structure for blocking the lower end of the water inlet chamber is provided at the lower end of the guide tube, and the lower half of the water inlet chamber located below the piston is surrounded by the piston, the inner side wall of the water inlet chamber, the outer side wall of the guide tube and the sealing structure to form a sealed chamber, an elastic reset part that elastically presses the piston upwards is provided in the sealed chamber, and a relay water channel connecting the water inlet and the water inlet channel is opened in the guide tube.

[0013] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, the switch assembly and the nozzle assembly are arranged at the head of the gun body, and the water inlet chamber is arranged at the handle of the gun body, so that the various components in the water inlet chamber are independent of the switch assembly and the nozzle assembly.

[0014] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, the guide tube is detachably connected to the gun body, and the elastic reset member is detachably sleeved on the guide tube.

[0015] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, the sealing structure includes a sealing boss arranged at the lower end of the guide tube, and the sealing boss is connected to the lower end of the water inlet chamber through a thread.

[0016] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, a water inlet connector that can be connected to a water pipe is detachably connected to the water inlet, and the upper end of the water inlet connector is connected to the relay water channel of the guide pipe.

[0017] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, the sealing structure also includes a sealing gasket arranged between the water inlet connector and the sealing boss.

[0018] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, the water inlet connector is connected to the water inlet through a thread.

[0019] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, a screw groove capable of cooperating with a screwdriver or a bit is provided at the center of the lower surface of the sealing boss.

[0020] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, a circle of limiting steps for limiting the upward movement of the piston is provided at the upper end of the water inlet chamber.

[0021] In order to further solve the technical problem to be solved by the utility model, in an anti-freezing water gun structure provided by the utility model, the piston is provided with a plurality of sealing rings for sealing contact with the inner wall of the water inlet chamber or the outer wall of the guide tube.

[0022] Compared with the prior art, the utility model has the following advantages:

[0023] 1. The utility model has an antifreeze function. In a low-temperature environment, the water remaining in the water gun freezes and expands in volume. When the water freezes, the force of volume expansion pushes the piston downward, increasing the volume of the upper half of the water inlet chamber above the piston, thereby eliminating the pressure of expansion on the gun body. When the ice melts, the elastic reset member pushes the piston back to its original position, restoring the original water spraying function of the water gun. Such a design can achieve the antifreeze function.

[0024] 2. In the utility model, the elastic reset part is located in a sealed room and is not in contact with water, so the elastic reset part is well protected. Since the elastic reset part is designed to be in a sealed environment and is not in direct contact with water, it will not be damaged by freezing expansion or water corrosion, which greatly improves the durability and service life of the water gun.

[0025] 3. In the present invention, the antifreeze mechanism, i.e. the setting of the core components such as the guide tube, the piston and the elastic reset member, does not rely on the structure of the switch assembly and the nozzle assembly. This independence means: first, even if the switch or nozzle assembly fails or needs to be replaced, it will not affect the normal operation of the antifreeze mechanism, thus ensuring the reliability and durability of the water gun in harsh environments; second, since the antifreeze structure is independent of other main components such as the switch and the nozzle, this design can be easily adapted to different types of gun body designs, whether it is a front pressure type or a rear pressure type gun body. This universal design greatly expands the application range of the product, allowing the anti-freeze water gun to meet the needs of a wider range of users.

[0026] 4. In the utility model, the guide tube and the elastic reset member can be easily separated and reassembled from the gun body. In particular, the elastic reset member can be directly sleeved on the guide tube and is detachable. This means that when the user faces different usage requirements, such as the need to replace the elastic reset member that has failed due to wear, or to adjust the antifreeze ability according to the specific usage environment, it can be achieved through simple disassembly and assembly operations. Users can even choose elastic reset members with different elastic forces according to specific needs, so as to ensure the anti-freeze effect while meeting different cost control requirements. This detachable design greatly improves the flexibility and maintainability of the water gun, not only making it easier and more economical to repair and replace parts, but also providing users with customized solutions to adapt to different usage scenarios and needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0029] Figure 2 It is an explosion schematic diagram of the utility model;

[0030] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0031] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the gun body. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figures 1 to 4 The structure of an anti-freezing water gun shown in the figure comprises a gun body 1, in which a water inlet channel 11, a switch assembly 2 for turning on and off the water flow, and a nozzle assembly 3 for adjusting the water splash are arranged, and a water inlet 12 is arranged at the lower end of the gun body 1. The water inlet channel 11 in the gun body 1 is the main path of the water flow, and the water flow enters through the water inlet 12 at the bottom, is turned on and off by the switch assembly 2, and is finally sprayed out by the nozzle assembly 3. This process ensures the basic function of the water gun - spraying water flow.

[0034] A water inlet chamber 13 is provided between the lower end of the water inlet channel 11 and the water inlet 12. A guide tube 4 is provided in the water inlet chamber 13, and a piston 5 that can slide up and down is sleeved on the guide tube 4. The upper half of the water inlet chamber 13 located above the piston 5 is connected to the water inlet channel 11. The guide tube 4 in the water inlet chamber 13 cooperates with the sliding of the piston 5 to form a structure that can dynamically adjust the size of the space. When the temperature drops and the volume of water expands due to freezing, the piston 5 is pushed down to increase the space above the piston 5, thereby alleviating the internal pressure caused by the expansion of ice.

[0035] The lower end of the guide tube 4 is provided with a sealing structure that blocks the lower end of the water inlet chamber 13, and the lower half of the water inlet chamber 13 located below the piston 5 is surrounded by the piston 5, the inner wall of the water inlet chamber 13, the outer wall of the guide tube 4 and the sealing structure to form an annular sealing chamber 131. The sealing chamber 131 is provided with an elastic reset member 6 that elastically presses the piston 5 upward. Of course, a relay water channel 41 is opened in the guide tube 4 to connect the water inlet 12 and the water inlet channel 11.

[0036] The elastic reset member 6 is preferably a spring.

[0037] During normal use, water flows into the water gun from the water inlet 12, passes through the relay waterway 41 and the water inlet channel 11 in sequence, and is finally sprayed out from the nozzle assembly 3, wherein the switch assembly 2 on the water inlet channel 11 is used to control the on and off of the water flow.

[0038] In a low-temperature environment, the water remaining in the water gun freezes and expands in volume. When the water freezes, the force of volume expansion pushes the piston 5 downward, increasing the volume of the upper half of the water inlet chamber 13 above the piston 5, thereby eliminating the pressure of expansion on the gun body. When the ice melts, the elastic reset member 6 pushes the piston 5 back to its original position, restoring the original water spraying function of the water gun. This design can achieve the function of antifreeze.

[0039] The more important innovation of the utility model is that the elastic reset member 6 is located in the sealed chamber 131 and is not in contact with water, so the elastic reset member 6 is well protected. Since the elastic reset member 6 is designed to be located in a sealed environment and is not in direct contact with water, it will not be damaged by freezing expansion or water corrosion, which greatly improves the durability and service life of the water gun.

[0040] More specifically, the switch assembly 2 and the nozzle assembly 3 are arranged at the head of the gun body 1, and the water inlet chamber 13 is arranged at the handle of the gun body 1, so that the various components in the water inlet chamber 13 (mainly referring to the guide tube 4, the piston 5 and the elastic return member 6 and other components) are independent of the switch assembly 2 and the nozzle assembly 3.

[0041] The most notable feature of this design is the independence of the antifreeze structure. The antifreeze mechanism, namely the core components such as the guide tube 4, the piston 5 and the elastic reset member 6, does not rely on the structure of the switch assembly 2 and the nozzle assembly 3. This independence means: first, even if the switch or nozzle assembly fails or needs to be replaced, it will not affect the normal operation of the antifreeze mechanism, ensuring the reliability and durability of the water gun in harsh environments; second, due to the independence of the antifreeze structure from other main components such as the switch and the nozzle, this design can be easily adapted to different types of gun body designs, whether it is a front pressure type or a rear pressure type gun body. This universal design greatly expands the application range of the product, allowing the anti-freeze water gun to meet the needs of a wider range of users.

[0042] More specifically, the guide tube 4 is detachably connected to the gun body 1, and the elastic reset member 6 is detachably sleeved on the guide tube 4. This structure allows the guide tube 4 and the elastic reset member 6 (usually a spring-type component) to be easily separated and reassembled from the gun body 1.

[0043] The detachable structure between the guide tube 4 and the gun body 1 is preferably as follows: a sealing boss 42 is provided at the lower end of the guide tube 4, and the sealing boss 42 is connected to the lower end of the water inlet chamber 13 by threading, thereby achieving a firm and detachable connection between the guide tube 4 and the gun body 1.

[0044] In addition, the design of the elastic reset member 6 also takes into account the convenience of the user. It can be directly mounted on the guide tube 4 and is detachable. This means that when the user faces different usage requirements, such as replacing the elastic reset member 6 that has failed due to wear, or adjusting the antifreeze ability according to a specific usage environment, it can be achieved through simple disassembly and assembly operations. The user can even choose elastic reset members 6 with different elastic forces according to specific needs, so as to ensure the antifreeze effect while meeting different cost control requirements.

[0045] This detachable design greatly improves the flexibility and maintainability of the water gun, not only making repair and replacement of parts easier and more economical, but also providing users with customized solutions to suit different usage scenarios and needs.

[0046] As mentioned above, in order to form the sealing chamber 131 for protecting the elastic reset member 6, the lower end of the guide tube 4 is designed with a sealing structure that can block the lower end of the water inlet chamber 13, and the sealing structure includes a sealing boss 42 provided at the lower end of the guide tube 4. The sealing boss 42 is connected to the lower end of the water inlet chamber 13 in a threaded manner, and this threaded connection not only ensures the sealing and stability of the connection, but also facilitates the operation of the user when maintenance or replacement of parts is required.

[0047] More specifically, the sealing structure further includes a sealing gasket 8 disposed between the water inlet connector 7 (described in detail later) and the sealing boss 42 to further enhance the sealing effect.

[0048] More specifically, the water inlet 12 is detachably connected to a water inlet connector 7 that can be connected to a water pipe, and the upper end of the water inlet connector 7 is connected to the relay water channel 41 of the guide tube 4, thereby achieving a smooth connection between the water source and the inside of the water gun.

[0049] More specifically, the detachable connection structure here is preferably: the water inlet connector 7 is connected to the water inlet 12 by threads. This detachable connection structure is not only convenient for installation and maintenance, but also increases the flexibility and applicability of the overall system.

[0050] Of course, when maintaining or replacing the internal parts of the water gun, it is necessary to pay attention to the disassembly order between the water inlet connector 7 and the guide tube 4. Since the water inlet connector 7 blocks the guide tube 4 from below, the water inlet connector 7 must be disassembled before disassembling the guide tube 4. This clear order helps to protect the parts from damage and ensures a smooth disassembly process.

[0051] More specifically, in order to further facilitate the disassembly and maintenance of the guide tube 4, a screw groove 421, such as a hexagonal socket, is designed at the center of the lower surface of the sealing boss 42. This design allows the use of tools such as a screwdriver or a bit, simplifies the disassembly process, facilitates users to quickly maintain or replace parts, and greatly improves the maintenance efficiency and user experience of the water gun.

[0052] More specifically, in order to control the movement range of the piston 5, a limit step 132 is designed at the upper end of the water inlet chamber 13 to limit the upward movement of the piston 5. This design not only protects the internal structure from damage that may be caused by excessive movement, but also ensures the stability and reliability of the water gun during use.

[0053] More specifically, the piston 5 is equipped with a plurality of sealing rings 9, which are in close contact with the inner wall of the water inlet chamber 13 or the outer wall of the guide tube 4. This design significantly increases the sealing effect between the piston 5 and the surrounding wall surface, prevents water leakage, and thus improves the sealing performance and efficiency of the overall system.

Claims

1. An anti-freezing water gun structure, characterized in that: The invention comprises a gun body (1), wherein the gun body (1) is provided with a water inlet channel (11), a switch assembly (2) for turning on and off the water flow, and a spray head assembly (3) for adjusting the water spray; a water inlet (12) is provided at the lower end of the gun body (1); a water inlet cavity (13) is provided between the lower end of the water inlet channel (11) and the water inlet (12); a guide tube (4) is provided in the water inlet cavity (13); a piston (5) which can slide up and down is sleeved on the guide tube (4); A sealing structure is provided at the lower end to block the lower end of the water inlet chamber (13), and the lower half of the water inlet chamber (13) located below the piston (5) is surrounded by the piston (5), the inner wall of the water inlet chamber (13), the outer wall of the guide tube (4) and the sealing structure to form a sealing chamber (131). An elastic reset member (6) is provided in the sealing chamber (131) to elastically press the piston (5) upward, and a relay water channel (41) is provided in the guide tube (4) to connect the water inlet (12) and the water inlet channel (11).

2. The anti-freezing water gun structure according to claim 1, characterized in that: The switch assembly (2) and the spray head assembly (3) are arranged at the head of the gun body (1), and the water inlet chamber (13) is arranged at the handle of the gun body (1), so that each element in the water inlet chamber (13) is independent of the switch assembly (2) and the spray head assembly (3).

3. The anti-freezing water gun structure according to claim 1, characterized in that: The guide tube (4) is detachably connected to the gun body (1), and the elastic reset member (6) is detachably sleeved on the guide tube (4).

4. The anti-freezing water gun structure according to claim 3 is characterized in that: The sealing structure comprises a sealing boss (42) arranged at the lower end of the guide tube (4), and the sealing boss (42) is connected to the lower end of the water inlet chamber (13) via threads.

5. The anti-freezing water gun structure according to claim 4 is characterized in that: A water inlet connector (7) capable of being connected to a water pipe is detachably connected to the water inlet (12), and the upper end of the water inlet connector (7) is in communication with a relay water channel (41) of the guide pipe (4).

6. The anti-freezing water gun structure according to claim 5, characterized in that: The sealing structure also includes a sealing gasket (8) arranged between the water inlet connector (7) and the sealing boss (42).

7. The anti-freezing water gun structure according to claim 5, characterized in that: The water inlet connector (7) is connected to the water inlet (12) via threads.

8. The anti-freezing water gun structure according to claim 4, characterized in that: A screw groove (421) capable of cooperating with a screwdriver or a screwdriver bit is provided at the center of the lower surface of the sealing boss (42).

9. The anti-freezing water gun structure according to claim 1, characterized in that: The upper end of the water inlet chamber (13) is provided with a circle of limiting steps (132) for limiting the upward movement of the piston (5).

10. The anti-freezing water gun structure according to claim 1, characterized in that: The piston (5) is provided with a plurality of sealing rings (9) for sealingly contacting the inner wall of the water inlet chamber (13) or the outer wall of the guide tube (4).

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