Integrated injection molding charging gun

The integrated injection-molded charging gun design, utilizing components such as retaining rings, gun handles, pressure caps, and pressing fasteners, solves the problem of loosening at the charging gun joints, achieving higher sealing performance and connection reliability, and extending service life.

CN223967426UActive Publication Date: 2026-03-03ZHONGSHAN TIANJIAOYI NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing charging guns are prone to loosening at the joints, which reduces their waterproof performance and affects their lifespan and reliability.

Method used

The charging gun adopts a one-piece injection molding design, combining a retaining ring, gun handle, pressure cap, and press-fit fastener. The one-piece molded connecting platform and snap-fit ​​slots achieve a reliable connection between the gun handle and the gun head, enhancing sealing and connection stability.

Benefits of technology

It improves the ease of assembly and waterproofing of the charging gun, enhances the stability and reliability of the connection, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integrated injection molding charging gun, which comprises an integrated gun head provided with a check ring on the surface, an integrated injection molding gun handle and a gland buckled on the gun handle, a connecting table with an opening in the top face is arranged in the gun handle, and a U-shaped groove is formed in the top face of the supporting plate. The gland is buckled to the top of the connecting table, and a pressing abutting buckling piece is arranged between the gland and the connecting table. The middle part of the pressing abutting fastener is rotatably connected into the U-shaped groove through a convex shaft; the top of one end of the pressing abutting fastener is provided with a pressing protrusion, and the bottom face of the other end of the pressing abutting fastener is fixedly provided with a clamping hook. A clamping protrusion is integrally formed on the top face of the check ring. The gun handle is reasonable in structural arrangement, the gun handle integrally formed through injection molding is matched with the gland, assembly convenience can be improved, sealing and waterproofness of the whole structure can be improved, connection between the gun handle and the gun head is achieved by pressing the abutting fastener, stability and reliability of connection are improved, and the service life of the gun handle is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of new energy vehicle charging technology, specifically relating to an integrated injection-molded charging gun. Background Technology

[0002] The charging gun is an essential component for charging new energy vehicles. It is generally connected to a power source and is inserted into the charging port of the new energy vehicle to complete the charging process. Since charging piles and other power sources are mostly installed outdoors, the operating environment is relatively complex. In order to prevent leakage, the charging gun needs to be waterproof. In the existing technology, the handle of the charging gun is composed of two parts, left and right, and is assembled from multiple accessories. During assembly, screws are used for connection and positioning. Over a long period of use, loosening or gaps may occur at the joints, reducing the waterproof performance and limiting its applicability. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated injection-molded charging gun with a reasonable structural design that is conducive to improving waterproof performance.

[0004] The technical solution to achieve the purpose of this utility model is an integrally injection-molded charging gun, including an integrally molded gun head with a retaining ring on its surface, and an integrally injection-molded gun handle and a pressure cover snapped onto the gun handle.

[0005] The gun handle has a connecting platform with an opening on the top surface. Two parallel support plates are integrally formed on the connecting platform, and the top surface of the support plates is provided with a U-shaped groove.

[0006] The pressure cap is snapped onto the top of the connecting platform, and a pressing and fastening element is provided between the pressure cap and the connecting platform;

[0007] The middle part of the pressing fastener is rotatably connected to the U-shaped groove via a convex shaft;

[0008] The pressure cap is provided with a button hole, and the top of one end of the pressing fastener is provided with a pressing protrusion, and the bottom surface of the other end is fixed with a hook.

[0009] The top surface of the retaining ring is integrally formed with a locking protrusion;

[0010] The pressing protrusion is located inside the button hole, and the hook is engaged on the locking protrusion to fix the gun head to the gun handle.

[0011] A further preferred embodiment is that the top surface of the connecting platform is integrally formed with a protrusion, and the bottom surface of the pressure cap is provided with an n-shaped clearance groove;

[0012] The pressure cap is snapped into the connecting platform, the protrusion is located in the n-shaped relief groove, and the pressing fastener is located between the protrusion and the top wall of the n-shaped relief groove.

[0013] A further preferred embodiment is that there is a gap between the protrusion and the top wall of the n-shaped recess, the gap being greater than the thickness of the pressing fastener.

[0014] A further preferred embodiment is that the outer wall of the connecting platform is provided with snap-fit ​​slots;

[0015] The inner wall of the pressure cap is provided with snap-fit ​​protrusions;

[0016] The buckle protrusion engages and is positioned within the buckle slot.

[0017] A further preferred embodiment is that the top and bottom surfaces of the pressing fastener are integrally formed with reinforcing ribs.

[0018] This utility model has positive effects: The structure of this utility model is reasonable. It adopts an integral injection-molded gun handle with a pressure cap, which can improve the convenience of assembly and also improve the overall sealing and waterproof performance. Furthermore, it achieves the connection between the gun handle and the gun head by pressing the fastener, which improves the stability and reliability of the connection and also helps to extend its service life. It is highly applicable. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0022] Figure 3 This is another structural view of the disassembled structure of this utility model.

[0023] Reference numerals: 1. Retaining ring; 2. Gun head; 3. Gun handle; 4. Pressure cap; 5. Connecting platform; 6. Support plate; 7. U-shaped groove; 8. Pressing buckle; 9. Protruding shaft; 10. Button hole; 11. Pressing protrusion; 12. Hook; 13. Locking protrusion; 14. N-shaped clearance groove; 15. Buckling slot hole; 16. Buckling protrusion; 17. Reinforcing rib; 18. Protrusion. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] See Figures 1 to 3 As shown, a one-piece injection-molded charging gun includes a gun head 2 with a retaining ring 1 on its surface, a one-piece injection-molded gun handle 3, and a pressure cap 4 that snaps onto the gun handle. In this embodiment, the one-piece injection-molded gun handle is beneficial for improving the overall sealing and waterproof performance and is not easily damaged. The gun head is a conventional structure in the prior art, simply applied, and has corresponding plug-in ports or terminals.

[0026] In practical applications, the gun handle features a connecting platform 5 with an open top surface. Two parallel support plates 6 are integrally formed on the connecting platform, and the top surface of each support plate has a U-shaped groove 7. The connecting platform is primarily used to connect the cover, and also facilitates the gun body wiring operation. The shape of the cover matches the shape of the connecting platform, allowing it to fit snugly against the inner wall of the cover during assembly. When the cover is closed, the connecting platform also prevents rainwater from seeping in from its top surface.

[0027] During assembly, the pressure cap is snapped onto the top of the connecting platform, and a pressing abutment 8 is provided between the pressure cap and the connecting platform; furthermore, the middle part of the pressing abutment is rotatably connected to a U-shaped groove via a convex shaft 9; the pressure cap is provided with a button hole 10, and one end of the pressing abutment is provided with a pressing protrusion 11 at its top, and the bottom surface of the other end is fixed with a hook 12; the top surface of the retaining ring is integrally formed with a locking protrusion 13; during assembly, the pressing protrusion is positioned in the button hole, and the hook is engaged with the locking protrusion to fix the gun head to the gun handle. This structure improves the connection stability and reliability of the gun head, and also facilitates disassembly, assembly, and maintenance.

[0028] In this embodiment, the top surface of the connecting platform is integrally formed with a protrusion 18, and the bottom surface of the pressure cap is provided with an n-shaped recess 14. The pressure cap is snapped into the connecting platform, the protrusion is located within the n-shaped recess, and the pressing abutment is disposed between the protrusion and the top wall of the n-shaped recess. There is a gap between the protrusion and the top wall of the n-shaped recess, the height of which is greater than the thickness of the pressing abutment. The protrusion, in conjunction with the n-shaped recess, can limit the pressing abutment, preventing it from tilting or shaking, and ensuring a stable and reliable connection with the gun head.

[0029] Furthermore, the outer wall of the connecting platform is provided with a snap-fit ​​slot 15; the inner wall of the pressure cap is provided with snap-fit ​​protrusions 16; during assembly, the snap-fit ​​protrusions engage with the snap-fit ​​slots for positioning. This structure improves the effectiveness and stability of the connection between the pressure cap and the connecting platform, and also enhances the ease of connection.

[0030] Furthermore, in practical applications, the top and bottom surfaces of the pressing fastener are integrally formed with reinforcing ribs 17, which can improve the overall strength of the pressing fastener.

[0031] This utility model has positive effects: The structure of this utility model is reasonable. It adopts an integral injection-molded gun handle with a pressure cap, which can improve the convenience of assembly and also improve the overall sealing and waterproof performance. Furthermore, it achieves the connection between the gun handle and the gun head by pressing the fastener, which improves the stability and reliability of the connection and also helps to extend its service life. It is highly applicable.

[0032] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A one-piece injection-molded charging gun, comprising a gun head integrally molded and having a retaining ring on its surface, characterized in that: It also includes a one-piece injection-molded gun handle and a snap-on cap that attaches to the gun handle; The gun handle has a connecting platform with an opening on the top surface. Two parallel support plates are integrally formed on the connecting platform, and the top surface of the support plates is provided with a U-shaped groove. The pressure cap is snapped onto the top of the connecting platform, and a pressing and fastening element is provided between the pressure cap and the connecting platform; The middle part of the pressing fastener is rotatably connected to the U-shaped groove via a convex shaft; The pressure cap is provided with a button hole, and the top of one end of the pressing fastener is provided with a pressing protrusion, and the bottom surface of the other end is fixed with a hook. The top surface of the retaining ring is integrally formed with a locking protrusion; The pressing protrusion is located inside the button hole, and the hook is engaged on the locking protrusion to fix the gun head to the gun handle.

2. The integrated injection-molded charging gun according to claim 1, characterized in that: The top surface of the connecting platform is integrally formed with protrusions, and the bottom surface of the pressure cover is provided with an n-shaped clearance groove. The pressure cap is snapped into the connecting platform, the protrusion is located in the n-shaped relief groove, and the pressing fastener is located between the protrusion and the top wall of the n-shaped relief groove.

3. The integrated injection-molded charging gun according to claim 2, characterized in that: There is a gap between the protrusion and the top wall of the n-shaped recess, and the height of the gap is greater than the thickness of the pressing fastener.

4. The integrated injection-molded charging gun according to claim 1, characterized in that: The outer wall of the connecting platform is provided with snap-fit ​​slots; The inner wall of the pressure cap is provided with snap-fit ​​protrusions; The buckle protrusion engages and is positioned within the buckle slot.

5. The integrated injection-molded charging gun according to claim 1, characterized in that: The top and bottom surfaces of the pressing fastener are integrally formed with reinforcing ribs.