CN211859011U

CN211859011U - Assembly structure and rifle that charges

Info

Publication number: CN211859011U
Application number: CN202020571017.3U
Authority: CN
Inventors: 曾志坚; 陈贤明; 李学广
Original assignee: Sanco New Energy Technology Co Ltd
Current assignee: Shunke Zhilian Technology Co.,Ltd.
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-03
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses an assembly structure and rifle that charges, above-mentioned assembly structure includes main body cover, connect lid and tail-gate, main body cover is equipped with the first line hole of walking, connect cooperation portion and spacing portion that the lid is including connecting, cooperation portion cover locate main body cover outside and with main body cover screw-thread fit, spacing portion sets up with main body cover's terminal surface relatively, be equipped with the opening in the spacing portion, it walks the line hole with the first second of walking the line hole intercommunication to be equipped with in the tail-gate, the second walks the line hole and is used for matcing with the cable, the tail-gate includes joint portion and extension, joint portion locates between main body cover's terminal surface and the spacing portion, the opening is worn to establish and stretches out by the extension, but joint portion is elastic deformation structure. Above-mentioned assembly structure, the joint portion of tail card is spacing between main body cover's terminal surface and spacing portion to along with connecting the rotation of lid and being extruded, joint portion can take place to warp, can be better with main body cover's terminal surface and spacing portion laminating, have better sealed water-proof effects, easy operation simultaneously, easy dismounting.

Description

Assembly structure and rifle that charges

Technical Field

The utility model relates to a battery charging outfit technical field especially relates to an assembly structure and rifle that charges.

Background

New energy equipment, for example the electric motor car, through electric drive, compare in traditional fuel vehicle not have exhaust emissions scheduling problem, market share constantly enlarges, and new energy equipment needs charge, generally adopts the plug to charge with the mode of new energy equipment grafting, and most charging plug and other connectors at present hardly accomplish to exert the effect of protecting the line and can have very good waterproof function simultaneously again, and the maintenance dismouting is loaded down with trivial details inconvenient.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses lie in overcoming prior art not enough, provide one kind can the protecting wire, have good sealed water-proof effects and easy dismounting's assembly structure and rifle that charges.

The technical scheme is as follows:

an assembly structure comprising:

the main body shell is provided with a first wiring hole;

the connecting cover comprises a matching part and a limiting part which are connected, the matching part is sleeved outside the main body shell and is in threaded fit with the main body shell, the limiting part is arranged opposite to the end face of the main body shell, and a through hole is formed in the limiting part; and

the tail-gate, be equipped with in the tail-gate with the second of first wiring hole intercommunication is walked the line hole, the second is walked the line hole and is used for matcing with the cable, the tail-gate includes joint portion and extension, joint portion locates main body cover's terminal surface with between the spacing portion, the extension is worn to establish and is stretched out the opening, but joint portion is elastic deformation structure.

Above-mentioned assembly structure, the second on the tailcard is walked line hole and is walked the first line hole intercommunication in the main body cover and can be used to walk the line, the extension of tailcard stretches out the opening, the extension can protect the cable, the cooperation portion cover of connecting the lid is established outside with main body cover, and lock with main body cover through rotating, the joint portion of tailcard this moment is spacing between main body cover's terminal surface and spacing portion, and be extruded along with the rotation of connecting the lid, because joint portion is elastic deformation structure, joint portion pressurized can take place to warp, can be better with main body cover's terminal surface and spacing portion laminating, and the screw-thread fit of cooperation portion and main body cover, make above-mentioned assembly structure have better sealed water-proof effects, and easy operation, easy dismounting.

In one embodiment, the assembling structure further includes a gasket and a sealing ring, the gasket is disposed between the clamping portion and the end surface of the main body casing, the sealing ring is sleeved on the cable, and two sides of the sealing ring are respectively abutted to the gasket and the clamping portion. When the sealing ring is installed, two sides of the sealing ring are respectively abutted to the gasket and the clamping portion, deformation can occur, the sealing ring is sleeved outside the cable, the sealing ring deforms to enable the sealing ring and the cable to be matched more tightly, meanwhile, the sealing ring and the clamping portion can be matched more tightly, sundries such as water can be prevented from entering the main body shell through a gap between the tail clamp and the cable, and therefore the sealing performance can be further improved through the matching. In addition, no matter whether the tail clip is deformed such as bending or not in the using process, the sealing ring is arranged at the clamping part, and sundries can be prevented from entering the main body shell.

In one embodiment, a first yielding groove is formed in the end face of the clamping portion, the sealing ring is arranged in the first yielding groove, and the depth of the first yielding groove is smaller than the thickness of the sealing ring. Through setting up the first groove of stepping down, can carry on spacingly to the mounted position of sealing washer, make things convenient for the assembly of sealing washer, simultaneously because the degree of depth in the first groove of stepping down is less than the thickness of sealing washer, along with joint portion is close the gasket, can make the sealing washer by extrusion deformation and with cable or the first inner wall contact in groove of stepping down inseparabler, can be better prevent that debris from getting into in the main body cover by between joint portion and the cable.

In one embodiment, a second yielding groove is formed in the end face of the main body shell, and the gasket is arranged in the second yielding groove. The second groove of stepping down can make things convenient for the installation of gasket, and the echelonment structure of second groove edge of stepping down simultaneously also can further prevent that debris from getting into in the main part shell.

In one embodiment, the assembling structure further comprises a locking member connected with the inner wall of the first wiring hole, and the locking member is used for being connected with the cable. The retaining member can carry on spacingly to the cable, prevents that cable position skew from influencing the sealed effect between cable and the tail-gate.

In one embodiment, the locking member comprises a first split body and a second split body, the first split body is detachably connected with the second split body, and the first split body and the second split body enclose a clamping space for clamping the cable. Through the detachable connection of the first split body and the second split body, the cable can be clamped more conveniently.

In one embodiment, the locking member further includes a fixing body, a first notch is formed in the middle of the first split body in a concave manner in the direction away from the second split body, a first positioning hole is formed in the end portion of the first split body, a second notch is formed in the middle of the second split body in a concave manner in the direction away from the first split body, a second positioning hole corresponding to the first positioning hole is formed in the end portion of the second split body, the fixing body penetrates through the first positioning hole and is in threaded fit with the second positioning hole, the first notch and the second notch are matched to form the clamping space, a limiting groove is formed in the inner wall of the first wiring hole, and the same side end portion of the first split body and the same side end portion of the second split body both extend into the limiting groove. In the structure, the distance between the first split body and the second split body can be adjusted through the fixed connecting body, so that the groove wall of the first notch and the groove wall of the second notch are matched to clamp cables, at the moment, the first split body and the second split body can clamp the cables of different gears, the applicability is wider, meanwhile, the end part of the first split body, which is at the same side as the end part of the second split body, extends into the limiting groove, circumferential rotation of the first split body and the second split body can be prevented, the cables are guaranteed not to be twisted, and the cables can be protected.

In one embodiment, the protruding portion is an elastically deformable structure, and an outer diameter of one end of the protruding portion, which is close to the clamping portion, is larger than an inner diameter of the through opening. If the cable receives external force when the relative main body cover of external force takes place the bending when using, certain deformation also can take place thereupon to the extension, prevents that the cable from directly taking place hard contact with main body cover, can carry out better protection to the cable, because the one end external diameter that the extension is close to joint portion is great, is interference fit with the opening when wearing to establish the opening, and the outer wall part of extension is extrudeed this moment, and is inseparabler with the cooperation of opening, can play better waterproof sealing effect.

In one embodiment, the outer diameter of the protruding portion gradually decreases in a direction away from the clamping portion, and a functional groove is formed in the outer surface of the protruding portion in the circumferential direction. The one end that joint portion was kept away from to the extension this moment can be better along with the crooked certain deformation that takes place of cable, and the function groove that sets up along circumference on the surface of extension can provide when crooked to the extension and give way, makes the extension change crooked, has carried out better protection to the cable.

A rifle charges, includes as above-mentioned arbitrary assembly structure, cooperation portion cover is located main body cover's one end, main body cover's the other end be equipped with be used for with cable electric connection's charging plug.

Above-mentioned rifle charges, the cable can pass the second and walk the line hole, first walk the line hole and with charging plug electric connection, the opening is stretched out to the extension of tailcard, the extension can protect the cable, the cooperation portion cover of connecting the lid is established outside with main body cover, and lock through rotating and main body cover, the joint portion of tailcard this moment is spacing between main body cover's terminal surface and spacing portion, and be extruded along with the rotation of connecting the lid, because joint portion is elastic deformation structure, can take place to warp when joint portion pressurized, terminal surface and the spacing portion laminating with main body cover that can be better, and the screw-thread fit of cooperation portion and main body cover, make above-mentioned rifle that charges have better sealed water-proof effects, easy operation, easy dismounting.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a side view of a charging gun according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a charging gun according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is an exploded view of a charging gun according to an embodiment of the present invention.

Description of reference numerals:

100. the main part shell, 101, first wire hole, 200, connection lid, 210, cooperation portion, 220, spacing portion, 230, holding screw, 300, tail card, 310, joint portion, first groove of stepping down, 320, extension, 321, function groove, 400, gasket, 500, sealing washer, 600, retaining member, 610, first components of a whole that can function independently, 620, second components of a whole that can function independently, 630, rigid coupling body, 10, cable, 20, charging plug.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 3, an embodiment discloses an assembly structure, including main body cover 100, connection cover 200 and tail card 300, main body cover 100 is equipped with first wiring hole 101, connection cover 200 is including cooperation portion 210 and spacing portion 220 of connecting, cooperation portion 210 cover is located outside main body cover 100 and is screw-thread fit with main body cover 100, spacing portion 220 sets up with main body cover 100's terminal surface relatively, be equipped with the opening on spacing portion 220, be equipped with the second wiring hole that communicates with first wiring hole 101 in the tail card 300, the second wiring hole is used for matching with cable 10, tail card 300 includes joint portion 310 and extension 320, joint portion 310 is located between main body cover 100's terminal surface and spacing portion 220, extension 320 wears to establish and stretches out the opening, joint portion 310 is the elastically deformable structure.

Above-mentioned assembly structure, the second on the tailcard 300 is walked the line hole and is walked the line hole 101 intercommunication in the main body cover 100 and can be used to walk the line, the extension 320 of tailcard 300 stretches out the opening, extension 320 can protect cable 10, the cooperation portion 210 cover of connecting lid 200 is established outside main body cover 100, and lock with main body cover 100 through rotating, the joint portion 310 of tailcard 300 is spacing between the terminal surface of main body cover 100 and spacing portion 220 this moment, and be extruded along with the rotation of connecting lid 200, because joint portion 310 is elastic deformation structure, can take place to warp when joint portion 310 is stressed, can be better with the laminating of the terminal surface of main body cover 100 and spacing portion 220, and the screw-thread fit of cooperation portion 210 and main body cover 100, make above-mentioned assembly structure have better sealed water-proof effects, easy operation simultaneously, easy dismounting.

Optionally, the main body casing 100 is externally provided with a protrusion and a first thread portion for thread-fitting with the fitting portion 210, the protrusion is disposed on one side of the first thread portion away from the tail clip 300, the protrusion can be used for limiting the installation of the connection cover 200, and meanwhile, whether the connection cover 200 is installed in place can be conveniently known through the distance between the connection cover 200 and the protrusion. Specifically, the boss portion is provided around the circumference of the main body casing 100.

Optionally, the matching portion 210 is a tubular structure, the aperture of the through opening is smaller than the inner diameter of the matching portion 210, the outer diameter of the clamping portion 310 is matched with the inner diameter of the matching portion 210, the outer edge of the clamping portion 310 can be abutted to the limiting portion 220, the clamping portion 310 is pressed by the end face of the main body casing 100 and the limiting portion 220 in a matched mode, and the sealing effect of the assembling structure is improved through elastic deformation of the clamping portion 310.

Optionally, the matching portion 210 is provided with a stop hole, the main body casing 100 is provided with a stop groove, the stop hole and the stop groove are correspondingly arranged, the stop hole is penetrated by the fastening screw 230 and extends into the stop groove, circumferential fixing of the connection cover 200 and the main body casing 100 is achieved, and the connection cover 200 is prevented from falling off.

In one embodiment, as shown in fig. 3 and 4, the assembling structure further includes a gasket 400 and a sealing ring 500, the gasket 400 is disposed between the clamping portion 310 and the end surface of the main body casing 100, the sealing ring 500 is configured to be sleeved outside the cable 10, and two sides of the sealing ring 500 are respectively abutted against the gasket 400 and the clamping portion 310. When installing, its both sides of sealing washer 500 respectively with gasket 400, joint portion 310 butt, consequently can take place deformation, because sealing washer 500 cover is established outside cable 10, sealing washer 500 takes place deformation and can make the cooperation between sealing washer 500 and the cable 10 inseparabler, also can make the cooperation between sealing washer 500 and the joint portion 310 inseparabler simultaneously, can prevent in debris such as water from getting into main body cover 100 by the clearance between tail card 300 and the cable 10 this moment, consequently above-mentioned cooperation can further improve sealing performance. In addition, no matter whether the tail clip 300 is deformed such as bent or not in the using process, the sealing ring 500 is arranged at the clipping portion 310, so that foreign matters can be prevented from entering the main body housing 100.

Specifically, the gasket 400 is an annular structure, the gasket 400 is used to be sleeved outside the cable 10, and both the gasket 400 and the sealing ring 500 are used to be matched with the cable 10. At this time, it is ensured that the seal ring 500 can be deformed by compression to improve the sealing performance.

In one embodiment, a first receding groove is formed on an end surface of the clamping portion 310, the sealing ring 500 is disposed in the first receding groove, and a depth of the first receding groove is smaller than a thickness of the sealing ring 500. Through setting up the first groove of stepping down, can carry on spacingly to the mounted position of sealing washer 500, make things convenient for sealing washer 500's assembly, simultaneously because the degree of depth in the first groove of stepping down is less than sealing washer 500's thickness, along with joint portion 310 is close gasket 400, can make sealing washer 500 by extrusion deformation and with cable 10 or the first inner wall contact in groove of stepping down inseparabler, can be better prevent that debris from getting into in main body cover 100 by between joint portion 310 and the cable 10.

In one embodiment, a second recess is formed on an end surface of the main body housing 100, and the gasket 400 is disposed in the second recess. The second receding groove can facilitate the installation of the gasket 400, and meanwhile, the stepped structure at the edge of the second receding groove can further prevent impurities from entering the main body housing 100.

Optionally, the thickness of the shim 400 is greater than or equal to the depth of the second relief groove. This ensures the function of the gasket 400 to press the seal ring 500.

In one embodiment, as shown in fig. 3 and 4, the assembling structure further includes a locker 600, the locker 600 is coupled to the inner wall of the first wire hole 101, and the locker 600 is used to couple with the cable 10. The retaining member 600 can limit the cable 10 and prevent the cable 10 from deviating to affect the sealing effect between the cable 10 and the tail clamp 300.

In one embodiment, as shown in fig. 3 and 4, the locking member 600 includes a first body 610 and a second body 620, the first body 610 and the second body 620 are detachably connected, and the first body 610 and the second body 620 enclose a holding space for holding the cable 10. Through the detachable connection of the first division 610 and the second division 620, the cable 10 can be more conveniently clamped.

In one embodiment, as shown in fig. 3 and 4, the locking member 600 further includes a fixing body 630, a middle portion of the first split body 610 is recessed towards a direction away from the second split body 620 to form a first notch, an end portion of the first split body 610 is provided with a first positioning hole, a middle portion of the second split body 620 is recessed towards a direction away from the first split body 610 to form a second notch, an end portion of the second split body 620 is provided with a second positioning hole corresponding to the first positioning hole, the fixing body 630 penetrates through the first positioning hole and is in threaded fit with the second positioning hole, the first notch and the second notch are matched to form a clamping space, an inner wall of the first wire passing hole 101 is provided with a limiting groove, and the same side end portions of the first split body 610 and the second split body 620 extend into the limiting groove. In the above structure, the distance between the first split body 610 and the second split body 620 can be adjusted through the fixing body 630, so that the groove wall of the first notch and the groove wall of the second notch are matched to clamp the cable 10, at this time, the first split body 610 and the second split body 620 can clamp the cables 10 of different gears, the applicability is wider, meanwhile, the same side end parts of the first split body 610 and the second split body 620 extend into the limiting groove, circumferential rotation of the first split body 610 and the second split body 620 can be prevented, the cable 10 is ensured not to be twisted, and the cable 10 can be protected.

In other embodiments, a fastening portion may be disposed on an inner wall of the first wire hole 101, the locking member 600 is a rope, and two ends of the locking member 600 are respectively used for connecting with the cable 10 and the fastening portion, and the cable 10 may also be fixed.

In other embodiments, a bayonet is provided on the first sub-body 610, a buckle is provided on the second sub-body 620, and the buckle enables the first sub-body 610 and the second sub-body 620 to be clamped by being inserted into the bayonet, so that the first sub-body 610 and the second sub-body 620 can be detachably connected.

In one embodiment, as shown in fig. 3 and 4, the extension 320 is an elastically deformable structure, and an outer diameter of an end of the extension 320 near the clamping portion 310 is larger than an inner diameter of the through opening. If the cable 10 receives external force when relative main body cover 100 takes place the bending when using, certain deformation also can take place thereupon for extension 320, prevent that cable 10 is direct to take place hard contact with main body cover 100, can carry out better protection to cable 10, because extension 320 is close to the one end external diameter of joint portion 310 great, be interference fit with the opening when wearing to establish the opening, the outer wall part of extension 320 is extrudeed this moment, it is inseparabler with the cooperation of opening, can play better waterproof sealing effect.

Optionally, the tail clip 300 is an integrally formed structure, and the material of the tail clip 300 is tpu (thermoplastic polyurethanes), which has good elastic deformation capability and aging resistance capability, so as to ensure that the assembly structure can continuously maintain the sealing effect.

In one embodiment, as shown in fig. 3 and 4, the outer diameter of the protrusion 320 gradually decreases in a direction away from the clamping portion 310, and a functional groove 321 is circumferentially formed on the outer surface of the protrusion 320. The one end that joint portion 310 was kept away from to extension 320 at this moment can be better along with the crooked certain deformation that takes place of cable 10, and along the function groove 321 of circumference setting on the surface of extension 320, can provide when crooked extension 320 and give way, make extension 320 change crooked, has carried out better protection to cable 10.

Alternatively, as shown in fig. 4, a plurality of functional grooves 321 are spaced outside the protrusion 320, and different functional grooves 321 are spaced along the length direction of the cable 10.

As shown in fig. 1 to 4, an embodiment discloses a charging gun, which includes an assembly structure as described in any of the above embodiments, a fitting portion 210 is sleeved at one end of a main body housing, and a charging plug 20 for electrically connecting with a cable 10 is disposed at the other end of the main body housing 100.

Above-mentioned rifle that charges, the cable 10 can pass the second and walk the line hole, first walk line hole 101 and with charging plug 20 electric connection, the portion 320 that stretches out of tail card 300 stretches out the opening, the portion 320 that stretches out can protect cable 10, the cooperation portion 210 cover of connecting lid 200 is established outside with main body cover 100, and lock with main body cover 100 through rotating, the joint portion 310 of tail card 300 is spacing between main body cover 100's terminal surface and spacing portion 220 this moment, and be extruded along with the rotation of connecting lid 200, because joint portion 310 is elastic deformation structure, can take place to warp when joint portion 310 is stressed, can be better with main body cover 100's terminal surface and the laminating of spacing portion 220, and cooperation portion 210 and main body cover 100's screw-thread fit, make above-mentioned rifle that charges have better sealed water-proof effects, easy operation simultaneously, easy dismounting.

Optionally, the middle of the main body housing 100 is provided with a wavy protrusion, which is convenient to hold and use.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An assembling structure, characterized by comprising:

the main body shell is provided with a first wiring hole;

2. The assembly structure of claim 1, further comprising a gasket and a sealing ring, wherein the gasket is arranged between the clamping portion and the end surface of the main body housing, the sealing ring is sleeved outside the cable, and two sides of the sealing ring are respectively abutted to the gasket and the clamping portion.

3. The assembling structure of claim 2, wherein a first receding groove is formed in an end surface of the clamping portion, the sealing ring is arranged in the first receding groove, and the depth of the first receding groove is smaller than the thickness of the sealing ring.

4. The assembling structure according to claim 2, wherein a second receding groove is formed in an end surface of the main body casing, and the gasket is disposed in the second receding groove.

5. The assembly structure according to any one of claims 1 to 4, further comprising a retaining member connected to an inner wall of the first wire hole, the retaining member being configured to be connected to the cable.

6. The assembling structure according to claim 5, wherein the locking member includes a first division and a second division, the first division is detachably connected with the second division, and the first division and the second division enclose a clamping space for clamping the cable.

7. The assembling structure of claim 6, wherein the locking member further comprises a fixing body, a first notch is formed in the middle of the first split body in a concave manner in the direction away from the second split body, a first positioning hole is formed in the end portion of the first split body, a second notch is formed in the middle of the second split body in a concave manner in the direction away from the first split body, a second positioning hole corresponding to the first positioning hole is formed in the end portion of the second split body, the fixing body penetrates through the first positioning hole and is in threaded fit with the second positioning hole, the first notch and the second notch are matched to form the clamping space, a limiting groove is formed in the inner wall of the first wiring hole, and the same side end portions of the first split body and the second split body extend into the limiting groove.

8. The fitting structure according to any one of claims 1 to 4, wherein the protruding portion is an elastically deformable structure, and an outer diameter of an end of the protruding portion near the click portion is larger than an inner diameter of the through opening.

9. The fitting structure according to claim 8, characterized in that an outer diameter of the protruding portion is gradually reduced in a direction away from the catching portion, and a functional groove is provided on an outer surface of the protruding portion in a circumferential direction.

10. A charging gun, comprising the assembling structure of any one of claims 1 to 9, wherein the fitting portion is fitted to one end of the main body case, and the other end of the main body case is provided with a charging plug for electrically connecting with the cable.