Charging gun structure with gun head capable of being rapidly disassembled and assembled

Abstract

The utility model discloses a charging gun structure with a rapidly detachable gun head. The charging gun structure comprises a gun body, a gun head and a pin assembly. The gun head is arranged at the front end of the gun body, and a plurality of insertion holes with forward openings are formed in the gun head; the pin assembly is arranged in the gun body, and each pin of the pin assembly is located in the corresponding insertion hole; the gun body is provided with a concave cavity with a forward opening, the pin assembly is arranged in the concave cavity, the gun head is detachably arranged at the front end of the gun body through a first screw and covers the opening of the concave cavity in a sealing mode, the gun head and the pin assembly are detachably installed in a sealing mode, and the gun head and the pin assembly are fixedly connected through a second screw. After the gun head is aged or damaged, the gun head can be replaced only by loosening the first screw and the second screw, the gun body does not need to be replaced together, the gun head can be rapidly disassembled and assembled, the structure is simple, installation is stable, operation is very easy and convenient, the maintenance cost of the charging gun is greatly reduced, and convenience is brought to use.

Description

Technical Field

[0001] The utility model relates to the field of charging gun technology, in particular to a charging gun structure with a gun head capable of being quickly disassembled and assembled. Background Art

[0002] New energy vehicles are a new type of vehicle that does not rely on fossil fuels but only uses electricity as a power source, and integrates vehicle power control and drive to form advanced technology, new structure, and new technical principles. The invention and production of new energy vehicles can solve the problems of exhaust emissions from fuel vehicles polluting the environment and high energy consumption, and the charging gun is a device used to charge the power source of new energy vehicles.

[0003] The main structure of the current charging gun includes a gun body, a gun head and a pin assembly; the gun head is arranged at the front end of the gun body, and has a plurality of plug holes opening forward; the pin assembly is arranged in the gun body, and each pin of the pin assembly is respectively located in the corresponding plug hole, and each pin is plug-connected with the pin on the new energy vehicle to achieve conduction.

[0004] However, in the prior art, the gun head and the gun body are generally an integrally formed fixed connection structure, and the gun head and the gun body cannot be disassembled and separated. Because the gun head is connected to the charging port of the new energy vehicle during use, the working environment temperature is extremely high, which causes the gun head to be easily aged and damaged, and the replacement cycle is short. In the prior art, if the gun head needs to be replaced, the gun body needs to be replaced at the same time, which is very troublesome to disassemble and assemble, and the replacement cost is high. Therefore, it is necessary to improve the current charging gun. Utility Model Content

[0005] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a charging gun structure with a gun head that can be quickly disassembled and assembled, which can effectively solve the problems of the existing charging guns that are difficult to disassemble and assemble and the high cost of replacing the gun head.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A charging gun structure with a gun head that can be quickly disassembled and assembled, comprising a gun body, a gun head and a pin assembly; the gun head is arranged at the front end of the gun body, and has a plurality of plug holes with openings facing forward; the pin assembly is arranged in the gun body, and each pin of the pin assembly is respectively located in a corresponding plug hole; the gun body has a concave cavity with an opening facing forward, and the pin assembly is arranged in the concave cavity, the gun head is detachably arranged at the front end of the gun body by a first screw and seals and covers the opening of the concave cavity, and the gun head and the pin assembly are detachably sealed and installed from each other, and the gun head and the pin assembly are fixedly connected by a second screw.

[0008] As a preferred embodiment, the periphery of the gun head is provided with a plurality of first through holes, and correspondingly, the periphery of the front end surface of the gun body is provided with a plurality of first screw holes. There are a plurality of first screws, and the plurality of first screws respectively pass through the corresponding first through holes and are screwed and fixed with the corresponding first screw holes.

[0009] As a preferred solution, the number of the first through holes is four, which are symmetrically distributed on the left and right sides of the gun head. Correspondingly, the number of the first screw holes and the number of the first screws are four.

[0010] As a preferred solution, a first sealing ring is sandwiched between the gun head and the gun body to seal the assembly gap between the gun head and the gun body to achieve a better waterproof effect.

[0011] As a preferred solution, the pin assembly includes a sealing assembly, a first fixing member, a second fixing member, a DC pin, a grounding pin and a signal pin. The first fixing member is fixed to the front end of the sealing assembly, the second fixing member is fixedly connected to the first fixing member, the DC pin is fixed to the first fixing member, and the grounding pin and the signal pin are both fixed to the second fixing member.

[0012] As a preferred solution, a plurality of second through holes are provided on the gun head, a second screw hole is provided on the sealing assembly, a third through hole is provided on the first fixing member, the third through hole is connected between the second screw hole and the corresponding second through hole, a third screw hole is provided on the second fixing member, and there are multiple second screws, some of which pass through the corresponding second through holes and the third through holes in sequence and are screwed and fixed with the second screw holes, and another part of the second screws pass through the corresponding second through holes and are screwed and fixed with the third screw holes.

[0013] As a preferred solution, the head of the second screw is provided with a metal gasket and a silicone gasket, and the silicone gasket is clamped between the metal gasket and the outer side of the gun head to form a sealed and waterproof structure to prevent liquid from entering the interior of the product through the installation gap of the second screw.

[0014] As a preferred solution, the inner wall of the concave cavity is formed with a first limiting step and a second limiting step, the back side of the first fixing member abuts against the first limiting step, and the back side of the second fixing member abuts against the second limiting step to prevent the first fixing member and the second fixing member from retreating.

[0015] As a preferred solution, a second sealing ring is sandwiched between the first fixing member and the sealing assembly to facilitate sealing installation.

[0016] As a preferred solution, a third sealing ring is sandwiched between the first fixing member and the gun head, and the third sealing ring is located at the periphery of the DC pin. A fourth sealing ring is sandwiched between the second fixing member and the gun head, and the fourth sealing ring is located at the periphery of the grounding pin and the signal pin to prevent liquid from entering the interior of the product from each plug hole to achieve a waterproof effect.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0018] In this product, the gun head is detachably arranged at the front end of the gun body by a first screw and seals the opening of the concave cavity, and the gun head and the pin assembly are detachably sealed and installed with each other, and the gun head and the pin assembly are fixedly connected by a second screw. After the gun head is aged or damaged, only the first screw and the second screw need to be loosened to replace the gun head, and there is no need to replace the gun body together. The gun head can be quickly disassembled and assembled, the structure is simple, the installation is stable, and the operation is very easy, which greatly reduces the maintenance cost of the charging gun and brings convenience to use.

[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an assembly perspective view of a preferred embodiment of the utility model;

[0021] Figure 2 It is an exploded view of a preferred embodiment of the utility model;

[0022] Figure 3 It is an exploded view from another angle of the preferred embodiment of the utility model;

[0023] Figure 4 It is a partial assembly diagram of a preferred embodiment of the utility model;

[0024] Figure 5 It is a partial assembly diagram of another angle of a preferred embodiment of the utility model;

[0025] Figure 6 It is an enlarged schematic diagram of a gun body in a preferred embodiment of the utility model;

[0026] Figure 7 It is an enlarged schematic diagram of the gun head in the preferred embodiment of the utility model.

[0027] Description of the accompanying drawings:

[0028] 10. Gun body 11. Concave cavity

[0029] 12. First screw hole 13. First limiting step

[0030] 14. Second limit step 20. Gun head

[0031] 21. Plug hole 22. First through hole

[0032] 23. First annular groove 24. Second annular groove

[0033] 25. third annular groove 26. second through hole

[0034] 30. Pin assembly 31. Sealing assembly

[0035] 32. First fixing member 33. Second fixing member

[0036] 34. DC pin 35. Ground pin

[0037] 36. Signal pin 37. Second sealing ring

[0038] 38. Third screw 301. Second screw hole

[0039] 302, third through hole 303, third screw hole

[0040] 304, fourth through hole 305, fourth screw hole

[0041] 41. First screw 42. Second screw

[0042] 43. Metal gasket 44. Silicone gasket

[0043] 51. First sealing ring 52. Third sealing ring

[0044] 53. Fourth sealing ring. DETAILED DESCRIPTION

[0045] Please refer to Figures 1 to 7 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a gun body 10, a gun head 20 and a pin assembly 30.

[0046] The gun body 10 has a concave cavity 11 with an opening facing forward. In the present embodiment, a plurality of first screw holes 12 are provided on the periphery of the front end surface of the gun body 10. There are four first screw holes 12 which are arranged symmetrically on the left and right. In addition, a first limiting step 13 and a second limiting step 14 are formed on the inner wall of the concave cavity 11. There are two second limiting bosses 14 which are arranged at intervals on the left and right.

[0047] The gun head 20 is arranged at the front end of the gun body 10, and has a plurality of plug holes 21 with openings facing forward; the pin assembly 30 is arranged in the gun body 10, and each pin of the pin assembly 30 is located in the corresponding plug hole 21. Specifically, the pin assembly 30 is arranged in the concave cavity 11, and the gun head 20 is detachably arranged at the front end of the gun body 10 by a first screw 41 and seals the opening of the concave cavity 11, and the gun head 20 and the pin assembly 30 are detachably sealed and installed from each other, and the gun head 20 and the pin assembly 30 are fixedly connected by a second screw 42. Specifically:

[0048] The periphery of the gun head 20 is provided with a plurality of first through holes 22, and the first screws 41 are multiple, and the multiple first screws 41 pass through the corresponding first through holes 22 and are screwed and fixed with the corresponding first screw holes 12. There are four first through holes 22, which are symmetrically distributed on the left and right sides of the gun head 20, and correspondingly, there are four first screws 41, and the structure design is reasonable. The first screws 41 are self-tapping screws. And, the rear end surface of the gun head 20 is concavely provided with a first annular groove 23, a second annular groove 24 and a third annular groove 25. In addition, a first sealing ring 51 is sandwiched between the gun head 20 and the gun body 10 to seal the assembly gap between the gun head 20 and the gun body 10 to achieve a better waterproof effect, and the first sealing ring 51 is arranged in the first annular groove 23 and fixed. In addition, a plurality of second through holes 26 are provided on the gun head 20, and the number of the second through holes 26 is four, but not limited.

[0049] The pin assembly 30 includes a sealing assembly 31, a first fixing member 32, a second fixing member 33, a DC pin 34, a grounding pin 35 and a signal pin 36; the first fixing member 32 is fixed to the front end of the sealing assembly 31, the second fixing member 33 is fixedly connected to the first fixing member 32, the DC pin 34 is fixed on the first fixing member 32, and the grounding pin 35 and the signal pin 36 are both fixed on the second fixing member 33. In the present embodiment, a second screw hole 301 is provided on the sealing assembly 31, and the second screw holes 301 are three arranged in a triangle, and the number of the second screw holes 301 is not limited; the back of the first fixing member 32 abuts against the first limiting step 13 to prevent the first fixing member 32 from retreating, and a third through hole 302 is provided on the first fixing member 32, and the third through hole 302 is connected between the second screw hole 301 and the corresponding second through hole 26; the back of the second fixing member 33 abuts against the second limiting step 14 to prevent the second fixing member 33 from retreating, and a third screw hole 303 is provided on the second fixing member 33, and the third screw hole 303 is one, which is not limited; there are multiple second screws 42, and the multiple second screws 42 are self-tapping screws, wherein some of the second screws 42 pass through the corresponding second through hole 26 and the third through hole 302 in sequence and are screwed and fixed with the second screw hole 301, and another part of the second screws 42 pass through the corresponding second through hole 26 and are screwed and fixed with the third screw hole 303. And, the head of the second screw 42 is provided with a metal gasket 43 and a silicone gasket 44, and the silicone gasket 44 is clamped between the metal gasket 43 and the outer side of the gun head 20 to form a sealed and waterproof structure to prevent liquid from entering the interior of the product from the installation gap of the second screw 42. In addition, a second sealing ring 37 is clamped between the first fixing member 32 and the sealing assembly 31 to form a sealed installation structure. In addition, the second fixing member 33 is fixed to the first fixing member 32 by the third screw 38, and the structure is simple and easy to assemble. Specifically, the second fixing member 33 is provided with a fourth through hole 304, and the first fixing member 32 is provided with a fourth screw hole 305. The third screw 38 passes through the fourth through hole 304 and is screwed and fixed with the fourth screw hole 305. The third screw 38 is a self-tapping screw, and there are two third screws 38, but it is not limited.

[0050] In addition, a third sealing ring 52 is sandwiched between the first fixing member 32 and the gun head 20, and the third sealing ring 52 is located on the periphery of the DC pin 34. A fourth sealing ring 53 is sandwiched between the second fixing member 33 and the gun head 20, and the fourth sealing ring 53 is located on the periphery of the grounding pin 35 and the signal pin 36 to prevent liquid from entering the interior of the product from each plug hole 21, thereby achieving a waterproof effect. Moreover, the third sealing ring 52 and the fourth sealing ring 53 are respectively fixed in the second annular groove 24 and the third annular groove 25, and are firmly installed.

[0051] The assembly process and method of use of this embodiment are described in detail as follows:

[0052] During assembly, first assemble the DC pin 34 to the first fixing member 32, and assemble the grounding pin 35 and the signal pin 36 to the second fixing member 33, then pass the third screw 38 through the fourth through hole 304 and screw it with the fourth screw hole 305 to form the pin assembly 30, then put the metal gasket 43 and the silicone gasket 44 on each second screw 42, then fix the first sealing ring 51, the third sealing ring 52 and the fourth sealing ring 53 in the first annular groove 23, the second annular groove 24 and the third annular groove 25 respectively, then fix the gun head 20 to the front end of the pin assembly 30 by the second screw 42, finally, place the pin assembly 30 into the concave cavity 11, and assemble the gun head 20 to the gun body 10, and multiple first screws 41 pass through the corresponding first through holes 22 respectively and screw it with the corresponding first screw holes 12 to be fixed, and the gun head 20 is finally installed.

[0053] During use, when the gun head 20 is aged or damaged, it is only necessary to remove the four first screws 41 and the four second screws 42 to remove and replace the aged or damaged gun head 20, replace the first sealing ring 51, the third sealing ring 52, the fourth sealing ring 53 and the sealing rings on each pin (not shown in the figure), assemble the new gun head 20 and fix it with the first screw 41 and the second screw 42, and no professional personnel is required to operate and replace it, which saves time and effort, and the disassembly and assembly process is simple, and the replacement cost is low.

[0054] The design focus of the utility model is that the gun head in this product is detachably arranged at the front end of the gun body by a first screw and seals and covers the opening of the concave cavity, and the gun head and the pin assembly are detachably and sealably installed with each other, and the gun head and the pin assembly are fixedly connected by a second screw. After the gun head is aged or damaged, only the first screw and the second screw need to be loosened to replace the gun head, and there is no need to replace it together with the gun body. The gun head can be quickly disassembled and assembled, the structure is simple, the installation is stable, and the operation is very easy, which greatly reduces the maintenance cost of the charging gun and brings convenience to use.

[0055] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A charging gun structure with a gun head that can be quickly disassembled and assembled, comprising a gun body, a gun head and a pin assembly; the gun head is arranged at the front end of the gun body, and has a plurality of plug holes with openings facing forward; the pin assembly is arranged in the gun body, and each pin of the pin assembly is respectively located in a corresponding plug hole; the characteristics are: The gun body has a concave cavity with an opening facing forward, the pin assembly is arranged in the concave cavity, the gun head is detachably arranged at the front end of the gun body by a first screw and seals the opening of the concave cavity, and the gun head and the pin assembly are detachably sealed and installed with each other, and the gun head and the pin assembly are fixedly connected by a second screw.

2. The charging gun structure with a quick-detachable gun head according to claim 1, characterized in that: The periphery of the gun head is provided with a plurality of first through holes, and correspondingly, the periphery of the front end surface of the gun body is provided with a plurality of first screw holes. There are a plurality of first screws, and the plurality of first screws respectively pass through the corresponding first through holes and are screwed and fixed with the corresponding first screw holes.

3. The charging gun structure with a quick-detachable gun head according to claim 2, characterized in that: There are four first through holes, which are symmetrically distributed on the left and right sides of the gun head. Correspondingly, there are four first screw holes and four first screws.

4. The charging gun structure with a quick-detachable gun head according to claim 1, characterized in that: A first sealing ring is sandwiched between the gun head and the gun body.

5. The charging gun structure with a quick-detachable gun head according to claim 1, characterized in that: The pin assembly includes a sealing assembly, a first fixing member, a second fixing member, a DC pin, a grounding pin and a signal pin. The first fixing member is fixed to the front end of the sealing assembly, the second fixing member is fixedly connected to the first fixing member, the DC pin is fixed to the first fixing member, and the grounding pin and the signal pin are both fixed to the second fixing member.

6. The charging gun structure with a quick-detachable gun head according to claim 5, characterized in that: The gun head is provided with a plurality of second through holes, the sealing assembly is provided with a second screw hole, the first fixing member is provided with a third through hole, the third through hole is connected between the second screw hole and the corresponding second through hole, the second fixing member is provided with a third screw hole, there are a plurality of second screws, some of which pass through the corresponding second through holes and the third through holes in sequence and are screwed and fixed with the second screw holes, and the other part of the second screws pass through the corresponding second through holes and are screwed and fixed with the third screw holes.

7. The charging gun structure with a quick-detachable gun head according to claim 6, characterized in that: The head of the second screw is covered with a metal gasket and a silicone gasket, and the silicone gasket is clamped between the metal gasket and the outer side surface of the gun head.

8. The charging gun structure with a quick-detachable gun head according to claim 5, characterized in that: The inner wall of the concave cavity is formed with a first limiting step and a second limiting step, the back side of the first fixing member abuts against the first limiting step, and the back side of the second fixing member abuts against the second limiting step.

9. The charging gun structure with a quick-detachable gun head according to claim 5, characterized in that: A second sealing ring is sandwiched between the first fixing member and the sealing assembly.

10. The charging gun structure with a quick-detachable gun head according to claim 5, characterized in that: A third sealing ring is sandwiched between the first fixing member and the gun head, and the third sealing ring is located at the periphery of the DC pin. A fourth sealing ring is sandwiched between the second fixing member and the gun head, and the fourth sealing ring is located at the periphery of the grounding pin and the signal pin.

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