A rotary automatic locking structure, a charging gun shell and an assembling and connecting method thereof

Abstract

The application relates to the technical field of charging gun shell mounting, in particular to a rotary automatic locking structure, a charging gun shell and an assembling and connecting method thereof. The rotary automatic locking structure comprises a mounting plate and a positioning column, the mounting plate is slidably provided with a clamping lock matched with the positioning column; a fixed disc is further arranged, the fixed disc is provided with a trigger assembly; a driving element is further arranged on the mounting plate, the driving element is matched with the trigger assembly, when the trigger assembly drives the driving element to act, the driving element can drive two groups of clamping locks to be inserted into locking grooves arranged on the positioning column; the charging gun shell comprises an upper shell and a lower shell, a wire bundling element is arranged in the upper shell; the upper shell and the lower shell are connected through an alignment structure, the positioning column is arranged on the wire bundling element, the mounting plate is arranged on the lower shell, and the connection state of the upper shell and the lower shell can be quickly locked when the two groups of locking plates are inserted into the locking grooves through the cooperation of the rotary automatic locking structures.

Description

Technical Field

[0001] This invention relates to the field of charging gun housing installation technology, specifically a rotary automatic locking structure, a charging gun housing, and a method for assembling and connecting them. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the structural stability and assembly efficiency of charging guns have attracted much attention. Currently, most charging gun housings on the market adopt a snap-fit ​​structure, with the upper and lower housings connected and fixed by screws.

[0003] Traditional screw connections require operators to align and tighten each screw individually, a complex, time-consuming, and labor-intensive process with low assembly efficiency. Furthermore, the tightening process is highly dependent on manual operation, which is affected by the operator's subjective factors, making it difficult to ensure that the tightening force of each screw is consistent: if too loose, it will cause the sealing connection to fail, or even cause the upper and lower housings to detach; while if too tight, it will cause the screw mounting holes to crack or strip.

[0004] During daily use, the repeated pulling and tugging of the charging gun during plugging and unplugging can cause micro-vibrations. Over time, this can lead to loosening of the screws, and in severe cases, even screws falling off, creating gaps at the shell connection surface. External moisture or dust can then enter the charging gun through these gaps, causing corrosion to the internal control module or wiring. When repairing the charging gun, technicians need to disassemble each screw one by one, a complicated process. Frequent disassembly and tightening can cause the screws to strip or damage the mounting holes, which in turn can damage the shell. Summary of the Invention

[0005] The purpose of this invention is to provide a rotary automatic locking structure, a charging gun housing, and an assembly and connection method thereof to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rotary automatic locking structure includes:

[0008] Mounting plate and positioning post, wherein the mounting plate is slidably provided with a locking component that cooperates with the positioning post;

[0009] It also includes a fixed plate, on which a triggering component is provided;

[0010] The mounting plate is also provided with a driving component, which cooperates with the trigger component. When the trigger component drives the driving component to move, the driving component can drive the two sets of locking components to insert into the locking slots opened on the positioning post.

[0011] The rotary automatic locking structure as described above: the locking component includes a locking plate slidably disposed on the mounting plate, and two sets of the locking plate are equidistantly disposed along the circumferential direction of the positioning post.

[0012] The rotary automatic locking structure as described above: the driving component includes a threaded rod rotatably mounted on the mounting plate, a threaded sleeve threadedly connected to the threaded rod, and two sets of hinged rods equidistantly arranged along the circumference of the threaded sleeve, with the ends of the two sets of hinged rods away from the threaded sleeve hinged to the locking plate.

[0013] The rotary automatic locking structure as described above: the triggering component includes a mounting and fixing sleeve, a linkage rod is inserted into the fixing sleeve, a drive rod is coaxially arranged on the linkage rod, a retaining spring is sleeved on the drive rod, one end of the retaining spring abuts against a baffle formed on the drive rod, and the other end abuts against the fixing plate, and a drive plate is arranged at the end of the drive rod away from the linkage rod, the drive plate cooperates with the adapter arranged on the threaded rod, and can drive the threaded rod to rotate.

[0014] The rotary automatic locking structure as described above: the adapter includes a driven disc coaxially disposed on the threaded rod, the driven disc having a ring of adaptive toothed structure, the adaptive toothed structure being adapted to the drive toothed structure disposed on the drive disc.

[0015] As described above, the rotary automatic locking structure has a protrusion formed on the outer wall of the linkage rod, and the protrusion is slidably disposed in the fitting groove opened on the inner wall of the fixed sleeve.

[0016] A charging gun housing is also proposed, employing the rotary automatic locking structure described above, comprising:

[0017] An upper housing and a lower housing, wherein a wire harness is installed inside the upper housing;

[0018] The upper and lower housings are connected by an alignment structure, and the positioning post is set on the wire harness. The mounting plate is installed on the lower housing. When the two sets of locking plates are inserted into the locking groove, the connection state of the upper and lower housings can be quickly locked.

[0019] The charging gun housing as described above: the alignment structure includes an alignment hole installed in the upper housing and a plug rod disposed in the lower housing.

[0020] A method for assembling and connecting the charging gun housing is also proposed, which adopts a rotary automatic locking structure as described above, including the following steps:

[0021] Step 1: After the upper and lower housings are aligned and aligned, apply downward pressure to the rotating cap while rotating it. During this process, the protrusion engages with the vertical groove so that the rotating cap can only drive the linkage rod to drive the drive rod to descend vertically, so that the drive plate moves closer to the driven plate.

[0022] Step 2: When the protrusion descends to its lowest position, the rotating cap can continue to rotate. During the rotation, the drive disc can drive the driven disc to rotate, and the threaded rod drives the threaded sleeve to rise, causing the two sets of locking plates to move closer to each other and insert into the locking groove to lock the connection between the upper and lower housings.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] By setting up an alignment structure and utilizing the alignment hole and the plug rod, the initial connection between the upper and lower housings can be achieved.

[0025] Meanwhile, by setting up a rotary automatic locking structure, the rotation automatic locking structure and the positioning column cooperate to drive the internal threaded rod to rotate when the installer rotates and presses down the rotating cap. This drives the two sets of locking plates to move closer to each other and insert into the locking groove on the locking part, thereby clamping the positioning column and achieving the purpose of quick connection. This can prevent the upper and lower housings from becoming loose due to vibration or drop during use.

[0026] In particular, when the rotating cap rotates, due to the setting of the upper fitting groove inside the fixed sleeve, the rotating cap can only drive the threaded rod to rotate after rotating to a specific angle and pressing down to the preset position; and due to the setting of the inclined groove, it can prevent the installer from over-rotating the rotating cap, thereby protecting the internal structure.

[0027] Once the connection between the upper and lower housings is locked, the spring releases its elastic potential energy, which drives the rotating cap to automatically reset. This prevents the connection between the upper and lower housings from being accidentally unlocked due to external scratches or accidental contact with the rotating cap during use.

[0028] During maintenance, simply rotate the screw rod in the opposite direction and press the rotating cap to reverse the screw rod, causing the locking plate to separate from the locking component, thus easily separating the upper and lower housings. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the charging gun housing.

[0030] Figure 2 This is a schematic diagram of the internal structure of the upper housing of the charging gun.

[0031] Figure 3 This is a schematic diagram of the structure inside the lower housing of the charging gun.

[0032] Figure 4 This is a schematic diagram of the locking mechanism inside the lower housing of the charging gun.

[0033] Figure 5 This is a schematic diagram of the components in the rotary automatic locking structure.

[0034] Figure 6 This is a schematic diagram of a rotary automatic locking structure.

[0035] Figure 7 This is a schematic diagram of the locking mechanism in a rotary automatic locking system.

[0036] Figure 8 This is a schematic diagram of the trigger component in a rotary automatic locking structure.

[0037] Figure 9 This is a schematic diagram of the trigger component in a rotary automatic locking structure.

[0038] Figure 10 This is a schematic diagram of the fitting groove in a rotary automatic locking structure.

[0039] In the diagram: 101, upper housing; 102, lower housing; 2, rotating cap; 3, plug rod; 4, alignment hole; 5, wire harness; 6, positioning post; 601, locking groove; 7, driven plate; 701, adaptable toothed structure; 8, threaded sleeve; 9, threaded rod; 10, mounting plate; 1001, slide rod; 11, locking plate; 1101, limit slider; 12, hinge rod; 13, fixed sleeve; 1301, rotating groove; 1302, drive groove; 1303, inclined groove; 1304, vertical groove; 14, drive rod; 1401, baffle; 15, drive plate; 1501, drive toothed structure; 16, abutment spring; 17, linkage rod; 1701, protrusion; 18, fixed plate. Detailed Implementation

[0040] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0041] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0042] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail, in order to highlight the main points of this application.

[0043] Please see Figures 1-10 In this embodiment of the invention,

[0044] A rotary automatic locking structure includes:

[0045] Mounting plate 10 and positioning post 6, wherein a locking element that cooperates with positioning post 6 is slidably provided on mounting plate 10;

[0046] Please see Figure 4 , Figure 8 The aforementioned positioning post 6 is disposed on the wire harness 5, and the wire harness 5 is fixedly installed inside the upper housing 101; the mounting plate 10 is fixedly installed inside the lower housing 102.

[0047] The locking component includes a locking plate 11 that is slidably disposed on the mounting plate 10, and two sets of locking plates 11 are equidistantly disposed along the circumferential direction of the positioning post 6.

[0048] Specifically, please refer to Figure 7 The two sets of locking plates 11 are distributed along the vertical direction of the lower housing 102, and each set of locking plates 11 is fixedly provided with a limiting slider 1101. The limiting slider 1101 is slidably connected to the slide rod 1001 fixedly installed on the mounting plate 10. With the cooperation of the limiting slider 1101 and the slide rod 1001, the locking plate 11 can only move along the vertical direction of the lower housing 102, thereby cooperating with the positioning post 6 to lock the connection state between the upper housing 101 and the lower housing 102.

[0049] It also includes a fixed plate 18, on which a trigger component is provided; please refer to [link / reference]. Figure 8 The aforementioned fixed plate 18 is fixedly installed inside the lower housing 102;

[0050] Further, please refer to Figure 6 , Figure 8 , Figure 9 The mounting plate 10 is also provided with a driving component. The driving component cooperates with the trigger component. When the trigger component drives the driving component to move, the driving component can drive the two sets of locking components to insert into the locking groove 601 opened on the positioning post 6.

[0051] The driving component includes a threaded rod 9 rotatably mounted on the mounting plate 10. A threaded sleeve 8 is provided on the threaded rod 9 and is threadedly connected thereto. Two sets of hinged rods 12 are equidistantly arranged along the circumferential direction of the threaded sleeve 8. The ends of the two sets of hinged rods 12 away from the threaded sleeve 8 are hinged to the locking plate 11.

[0052] For details, please refer to Figure 6 , Figure 7 In the initial state, the threaded sleeve 8 is close to the mounting plate 10. At this time, under the connection of the fixed-length hinge rod 12, the two sets of locking plates 11 are far apart from each other and separated from the positioning post 6. At the same time, under the connection and cooperation of the locking plate 11 and the hinge rod 12, the threaded sleeve 8 can only move up and down along the axial direction of the threaded rod 9.

[0053] In summary, once the upper housing 101 and the lower housing 102 are aligned, the trigger assembly can drive the threaded rod 9 to rotate.

[0054] Subsequently, the rotating threaded rod 9 forces the threaded sleeve 8 to rise along the axial direction of the threaded rod 9, which in turn drives the two sets of locking plates 11 to move closer to each other and slowly insert into the locking groove 601.

[0055] When the threaded rod 9 can no longer rotate, the threaded sleeve 8 moves to the end of its stroke. At this time, the two sets of locking plates 11 have been fully inserted into the locking groove 601. By using the cooperation between the two sets of locking plates 11 and the locking groove 601, the positioning post 6 is held tightly, thereby locking the alignment connection between the lower housing 102 and the upper housing 101.

[0056] Preferably, please refer to Figure 5 , Figure 6 , Figure 8 , Figure 9 , Figure 10 The triggering component includes a mounting sleeve 13, which is fixedly mounted on the lower housing 102, and a linkage rod 17 is inserted inside the mounting sleeve 13; specifically, a rotating cap 2 is coaxially fixedly mounted on the linkage rod 17, the rotating cap 2 as follows Figure 9 As shown, it is fitted onto the outer shell of the fixed sleeve 13;

[0057] Specifically, the rotating cap 2 is provided with tightening and loosening markings (not shown in the figure). These markings facilitate the installer to lock or release the upper housing 101 and lower housing 102 according to the marking prompts. A drive rod 14 is coaxially provided on the linkage rod 17. An abutment spring 16 is sleeved on the drive rod 14. One end of the abutment spring 16 abuts against the baffle 1401 formed on the drive rod 14, and the other end abuts against the fixed plate 18. A drive plate 15 is provided at the end of the drive rod 14 away from the linkage rod 17. The drive plate 15 cooperates with the adapter provided on the threaded rod 9 to drive the threaded rod 9 to rotate.

[0058] Specifically, the aforementioned abutment spring 16 is always in a compressed state, pushing the drive rod 14 to tend to move towards the outside of the lower housing 102, so that in the initial state, a certain height difference is formed between the rotating cap 2 and the fixed sleeve 13.

[0059] Please see Figure 5 The adapter includes a driven disk 7 coaxially mounted on the threaded rod 9, and a ring of adaptive tooth structure 701 is provided on the driven disk 7. The adaptive tooth structure 701 is adapted to the drive tooth structure 1501 provided on the drive disk 15.

[0060] A protrusion 1701 is also formed on the outer wall of the linkage rod 17, and the protrusion 1701 is slidably disposed in the fitting groove opened on the inner wall of the fixed sleeve 13.

[0061] For details, please refer to Figure 9 , Figure 10 The aforementioned fitting groove includes a rotating groove 1301 and a driving groove 1302 formed on the inner wall of the fixed sleeve 13. Both the rotating groove 1301 and the driving groove 1302 are annular grooves formed along the circumferential direction of the fixed sleeve 13. The rotating groove 1301 is away from the lower housing 102. The rotating groove 1301 and the driving groove 1302 are connected by a vertical groove 1304. In particular, a section of inclined groove 1303 is connected to both sides of the connection between the driving groove 1302 and the vertical groove 1304.

[0062] In the initial state, the protrusion 1701 is placed in the rotating groove 1301. At this time, in conjunction with the elastic potential energy stored in the abutment spring 16, the linkage rod 17 and the rotating cap 2 can be maintained at a fixed height.

[0063] After the upper housing 101 and lower housing 102 are aligned and connected, rotate the rotating cap 2 while applying downward pressure. During this process, the protrusion 1701 can slide within the rotating groove 1301 until the protrusion 1701 engages with the vertical groove 1304. The continuously applied downward pressure forces the protrusion 1701 into the vertical groove 1304 and slides rapidly along it. During this process, the operator needs to rotate the rotating cap 2 counterclockwise (engaging) while maintaining downward pressure, according to the markings. Figure 6 , Figure 8 , Figure 9 (Description); During rotation, the protrusion 1701 engages with the inclined groove 1303 on the left and slides along the inclined groove 1303, thereby driving the rotating cap 2, drive rod 14 and linkage rod 17 to descend further until the protrusion 1701 engages with the drive groove 1302, at which point the drive tooth structure 1501 on the drive disk 15 can mesh with the adaptive tooth structure 701 on the driven disk 7, thereby further preventing accidental contact; then, with the continuous rotation of the rotating cap 2, the drive disk 15 can drive the driven disk 7 to rotate counterclockwise; then the threaded rod 9, which is coaxially fixed with the driven disk 7, can drive the threaded sleeve 8 to rise, thereby pulling the two sets of locking plates 11 to gradually insert into the locking groove 601, completing the clamping and locking of the positioning post 6;

[0064] After the rotating cap 2 rotates one revolution, the threaded sleeve 8 rises to its highest point, and the two sets of locking plates 11 are fully inserted into the locking groove 601. At this time, the protrusion 1701 will cooperate with the right inclined groove 1303 and move to engage with the vertical groove 1304. Subsequently, the installer will be unable to continue to apply rotational force in the same direction, thus prompting the installer to release the force. Immediately afterwards, as the installer releases the rotating cap 2, the abutment spring 16 releases elastic potential energy, pushing the drive rod 14 and the linkage rod 17 to rise rapidly, so that the protrusion 1701 slides rapidly along the vertical groove 1304 and finally engages with the rotating groove 1301.

[0065] After the rotating cap 2 returns to its initial height, gently rotate the rotating cap 2 to misalign the protrusion 1701 with the vertical groove 1304, and press the rotating cap 2 downwards. Once it is confirmed that the rotating cap 2 cannot be lowered, the connection between the upper housing 101 and the lower housing 102 is locked. With the cooperation of the rotating groove 1301, the vertical groove 1304 and the inclined groove 1303, it is possible to prevent the upper housing 101 and the lower housing 102 from being accidentally unlocked due to external objects scraping or accidentally touching the rotating cap 2 during the use of the charging gun. At the same time, it can keep the connection between the upper housing 101 and the lower housing 102 in a stable state.

[0066] Subsequently, when disassembling and repairing the charging gun housing, rotate and press the rotating cap 2 in the opposite direction until the rotating cap 2 engages with the drive groove 1302. Then, rotate the rotating cap 2 in the opposite direction. At this time, the drive disc 15 engages with the driven disc 7 and drives the threaded rod 9 to reverse. Then, the threaded rod 9 drives the threaded sleeve 8 to descend and forces the two sets of locking plates 11 to move away from each other and withdraw from the locking groove 601, thereby releasing the locking connection between the upper housing 101 and the lower housing 102. Then, the lower housing 102 can be easily disassembled.

[0067] A charging gun housing is also proposed, employing the rotary automatic locking structure described above, comprising:

[0068] Upper housing 101 and lower housing 102, wherein a wire harness 5 is installed inside the upper housing 101;

[0069] For details, please refer to Figure 2 , Figure 4 The aforementioned wire harness 5 is fixed inside the upper housing 101, which can organize and fix the wires installed in the upper housing 101, prevent the wires from being distributed messily, and reduce the interference of the wires when connecting the upper housing 101 and the lower housing 102.

[0070] The upper housing 101 and the lower housing 102 are connected by an alignment structure, and the positioning post 6 is set on the wire harness 5. The mounting plate 10 is installed on the lower housing 102. When the two sets of locking plates 11 are inserted into the locking groove 601, the connection state of the upper housing 101 and the lower housing 102 can be quickly locked.

[0071] The alignment structure includes an alignment hole 4 installed in the upper housing 101 and a plug rod 3 disposed in the lower housing 102;

[0072] Please see Figure 2 , Figure 3 The aforementioned alignment holes 4 are provided in multiple sets in the upper housing 101, and correspondingly, the insertion rods 3 are also provided in multiple sets in the lower housing 102.

[0073] When aligning the upper housing 101 and the lower housing 102, the insertion rod 3 is aligned with the alignment hole 4, which enables the initial contact of the connection surfaces of the upper housing 101 and the lower housing 102, making it easier to fix the connection state of the two in the future.

[0074] Please see Figure 4 The positioning post 6 is mounted on the wire harness 5;

[0075] In summary, with the cooperation of the alignment structure, the upper housing 101 and the lower housing 102 first complete the initial alignment. At this time, the connecting surfaces of the upper housing 101 and the lower housing 102 are tightly fitted. Subsequently, with the cooperation of the rotary automatic locking structure, the connection state of the upper housing 101 and the lower housing 102 can be locked so that the upper housing 101 and the lower housing 102 are fixedly connected to form a sealed chamber, which protects the internal circuits and electronic control module, so that the charging gun can be put into normal use.

[0076] A method for assembling and connecting the charging gun housing is also proposed, which adopts a rotary automatic locking structure as described above, including the following steps:

[0077] Step 1: After the upper housing 101 and the lower housing 102 are aligned and overlapped, the rotating cap 2 is rotated while applying downward pressure. During this process, the protrusion 1701 engages with the vertical groove 1304 so that the rotating cap 2 can only drive the linkage rod 17 to drive the drive rod 14 to descend vertically, so that the drive disk 15 moves closer to the driven disk 7.

[0078] Step 2: When the protrusion 1701 descends to the lowest position, the rotating cap 2 can continue to rotate. During the rotation, the drive disc 15 can drive the driven disc 7 to rotate, and the threaded rod 9 drives the threaded sleeve 8 to rise, causing the two sets of locking plates 11 to move closer to each other and insert into the locking groove 601 to lock the connection between the upper housing 101 and the lower housing 102.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0080] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotary automatic locking structure, characterized in that, include: Mounting plate (10) and positioning post (6), wherein a locking element that cooperates with positioning post (6) is slidably provided on mounting plate (10); It also includes a fixed disk (18), on which a triggering component is provided; The mounting plate (10) is also provided with a driving component. The driving component cooperates with the trigger component. When the trigger component drives the driving component to move, the driving component can drive the two sets of locking components to be inserted into the locking groove (601) opened on the positioning post (6).

2. The rotary automatic locking structure according to claim 1, characterized in that, The locking mechanism includes a locking plate (11) that is slidably disposed on the mounting plate (10), and two sets of the locking plate (11) are equidistantly disposed along the circumferential direction of the positioning post (6).

3. The rotary automatic locking structure according to claim 2, characterized in that, The driving component includes a threaded rod (9) rotatably mounted on the mounting plate (10), and a threaded sleeve (8) threadedly connected thereto is provided on the threaded rod (9). The threaded sleeve (8) is provided with two sets of hinged rods (12) equidistantly along its circumference. The ends of the two sets of hinged rods (12) away from the threaded sleeve (8) are hinged to the locking plate (11).

4. The rotary automatic locking structure according to claim 3, characterized in that, The triggering component includes a mounting sleeve (13), a linkage rod (17) is inserted inside the mounting sleeve (13), a drive rod (14) is coaxially arranged on the linkage rod (17), an abutment spring (16) is sleeved on the drive rod (14), one end of the abutment spring (16) abuts against a baffle (1401) formed on the drive rod (14), and the other end abuts against the fixed plate (18). A drive plate (15) is arranged at the end of the drive rod (14) away from the linkage rod (17). The drive plate (15) cooperates with the adapter set on the threaded rod (9) and can drive the threaded rod (9) to rotate.

5. The rotary automatic locking structure according to claim 4, characterized in that, The adapter includes a driven disk (7) coaxially mounted on the threaded rod (9), and a ring of adaptive toothed structure (701) is provided on the driven disk (7), which is adapted to the drive toothed structure (1501) provided on the drive disk (15).

6. The rotary automatic locking structure according to claim 5, characterized in that, A protrusion (1701) is also formed on the outer wall of the linkage rod (17), and the protrusion (1701) is slidably disposed in the fitting groove opened on the inner wall of the fixed sleeve (13).

7. A charging gun housing, comprising the rotary automatic locking structure as described in claim 1, further comprising: The upper housing (101) and the lower housing (102), wherein a wire harness (5) is installed inside the upper housing (101); characterized in that: The upper housing (101) and the lower housing (102) are connected by an alignment structure, and the positioning post (6) is set on the wire harness (5). The mounting plate (10) is installed on the lower housing (102). When the two sets of locking plates (11) are inserted into the locking groove (601), the connection state of the upper housing (101) and the lower housing (102) can be quickly locked.

8. A charging gun housing according to claim 7, characterized in that, The alignment structure includes an alignment hole (4) installed in the upper housing (101) and a plug rod (3) disposed in the lower housing (102).

9. A method for assembling and connecting a charging gun housing, characterized in that, The rotary automatic locking structure according to claim 1 includes the following steps: Step 1: After the upper housing (101) and the lower housing (102) are aligned and overlapped, the rotating cap (2) is rotated while applying downward pressure. During this process, the protrusion (1701) engages with the vertical groove (1304) so ​​that the rotating cap (2) can only drive the linkage rod (17) to drive the drive rod (14) to descend vertically, so that the drive disk (15) moves closer to the driven disk (7). Step 2: When the protrusion (1701) descends to the lowest position, the rotating cap (2) can continue to rotate. During the rotation, the drive disk (15) can drive the driven disk (7) to rotate, and the threaded rod (9) drives the threaded sleeve (8) to rise, driving the two sets of locking plates (11) to approach each other and insert into the locking groove (601) to lock the connection between the upper housing (101) and the lower housing (102).

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