Lock catch structure for charging gun

By designing a locking structure consisting of a sliding rod, a sliding plate, a compression spring, a tension spring, and a positioning mechanism, the problem of the charging pile lock being difficult to reset was solved, achieving a stable lock on the charging gun, preventing it from falling and being damaged, and improving the practicality of the device.

CN224256462UActive Publication Date: 2026-05-19GUANGXI SUPER CHARGE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI SUPER CHARGE TECHNOLOGY CO LTD
Filing Date
2025-08-08
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The charging station's latch is difficult to reset after frequent tilting and pressing, affecting the sensitivity and stability of the lock. This results in the charging gun not locking securely and easily falling off the charging station, causing damage.

Method used

A locking structure including a slide bar, a slide plate, a compression spring, a tension spring, and a positioning mechanism is designed. Through the cooperation of the push plate and the squeezing block, the slide plate and the positioning block are moved to ensure the charging gun is securely locked and prevent damage caused by tilting and pressing.

Benefits of technology

It improves the stability and practicality of the charging gun's locking mechanism, prevents the charging gun from being damaged by drops, and extends the lifespan of the lock.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lock catch structure for a charging gun in the field of charging guns, which comprises a mounting plate, a placing seat, the charging gun and a lock catch mechanism, the placing seat is connected to one side of the mounting plate, the charging gun is inserted into the placing seat, the lock catch mechanism is connected to the outer side of the charging gun, and the lock catch mechanism is connected to the outer side of the charging gun. The lock catch mechanism comprises a shell fixed to the outer side wall of the charging gun, sliding rods are symmetrically fixed to the two sides of an inner cavity of the shell, a push plate is pushed, so that a connecting rod moves, an extrusion block is driven to move, an extension spring is stretched, the extrusion block extrudes the inclined face of a stress block, the stress block moves, and therefore the sliding plate is driven to move, and the charging gun is charged. And meanwhile, the clamping head retreats from the clamping groove and is unlocked, so that inclined pressing is avoided, the situation that due to the fact that an internal elastic structure is difficult to reset, the charging gun is locked unstably is prevented, the charging gun is prevented from falling off and being damaged is avoided, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of charging gun technology, specifically a locking structure for a charging gun. Background Technology

[0002] A charging pile is a charging device that provides energy replenishment for electric vehicles. Its function is similar to that of a gas pump in a gas station. It can be fixed to the ground or wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. It can charge various models of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected to the AC power grid, and the output end of the charging pile is equipped with a charging gun for charging electric vehicles.

[0003] Currently, commercial charging stations are provided to different car owners, each with different usage habits and unfamiliarity with the structure of the charging stations. When unlocking the charging gun, car owners may not accurately control the direction and force of pressing the latch. If the latch of some charging stations is frequently tilted and pressed, it can easily cause misalignment of the internal structure of the latch, making it difficult for the internal elastic structure to return to its original position. This affects the sensitivity and stability of the locking, reduces the service life of the latch, and makes the locking of the charging gun unstable, causing the charging gun to fall off the charging station and be damaged. To address this, we have proposed a latch structure for charging guns. Utility Model Content

[0004] The purpose of this utility model is to provide a locking structure for a charging gun, in order to solve the problem mentioned in the background art that if the locking mechanism of some charging piles is frequently tilted and pressed, the internal elastic structure is difficult to reset, thereby affecting the sensitivity and stability of the locking, making it easy for the charging gun to be unstable and causing the charging gun to fall off the charging pile and be damaged.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a locking structure for a charging gun, comprising a mounting plate, a placement seat, a charging gun, and a locking mechanism. The placement seat is connected to one side of the mounting plate, the charging gun is inserted into the interior of the placement seat, and the locking mechanism is connected to the outside of the charging gun. The locking mechanism includes a housing fixed to the outer wall of the charging gun. Sliding rods are symmetrically fixed on both sides of the inner cavity of the housing. A sliding plate slides along the outer wall of the sliding rods. A locking head is fixed to the bottom edge of the sliding plate. A compression spring is sleeved on the outer side of the sliding rods. A force-bearing block is fixed at the bottom center of the sliding plate. A connecting rod slides symmetrically through one side of the housing. A push plate is fixed to one end of the connecting rod, and a pressing block is fixed to the other end of the connecting rod. A tension spring is sleeved on the outer side of the connecting rod. A slot is provided at the top center of the placement seat.

[0006] As a further description of the above technical solution:

[0007] The top end of the compression spring is fixedly connected to the top of the inner cavity of the housing, and the bottom end of the compression spring is fixedly connected to the top of the slide plate.

[0008] As a further description of the above technical solution:

[0009] One end of the tension spring is fixedly connected to one side of the compression block, and the other end of the tension spring is fixedly connected to one side of the inner cavity of the outer shell.

[0010] As a further description of the above technical solution:

[0011] One side of the force-bearing block and one side of the extrusion block are provided with inclined surfaces, and the inclined surfaces of the force-bearing block and the extrusion block are in contact with each other.

[0012] As a further description of the above technical solution:

[0013] The placement base is provided with a positioning mechanism. The positioning mechanism includes mounting cavities symmetrically opened on the inner side wall of the placement base. A return spring is fixed in the middle of one side of the mounting cavity. A moving plate is fixed at one end of the return spring. A positioning block is fixed in the middle of one side of the moving plate. Positioning grooves are symmetrically opened on the outer end of the charging gun.

[0014] As a further description of the above technical solution:

[0015] The movable plate slides inside the mounting cavity, and the outer side wall of the movable plate is in contact with the inner side wall of the mounting cavity.

[0016] As a further description of the above technical solution:

[0017] The end of the positioning block is provided with an arc surface, and the positioning groove is an arc-shaped groove.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The locking structure used in this charging gun moves the connecting rod by pushing the push plate, which in turn moves the compression block, stretching the tension spring. The compression block then presses against the inclined surface of the force-bearing block, causing the force-bearing block to move, which in turn moves the sliding plate. The sliding plate rises and compresses the compression spring, while simultaneously causing the locking head to exit the slot and release the lock. This prevents tilting and pressing, prevents the internal elastic structure from failing to reset, and avoids unstable locking of the charging gun. It also prevents the charging gun from falling and being damaged, thus improving the practicality of the device.

[0020] 2. The locking structure used in this charging gun involves inserting the charging gun into the placement base and pressing the arc surface of the positioning block, causing the positioning block to retract into the mounting cavity. This moves the moving plate and presses the return spring. When the positioning block aligns with the positioning groove, the return spring resets the moving plate, causing the positioning block to return to its original position and embed itself in the positioning groove. This provides initial positioning and locking of the charging gun. The addition of this locking structure further enhances the stability of the locking mechanism, improves the practicality of the device, and prevents the charging gun from falling. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a locking structure for a charging gun proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of the internal structure of the outer shell of a locking structure for a charging gun proposed in this utility model.

[0023] Figure 3 A schematic diagram of the slot opening structure of a locking structure for a charging gun proposed in this utility model;

[0024] Figure 4 A schematic diagram of the reset spring mounting structure of a locking structure for a charging gun proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the positioning groove of a locking structure for a charging gun proposed in this utility model.

[0026] In the diagram: 100, mounting plate; 200, placement base; 300, charging gun; 400, locking mechanism; 410, outer shell; 420, sliding rod; 430, sliding plate; 431, locking head; 440, compression spring; 450, force-bearing block; 460, connecting rod; 461, push plate; 470, pressing block; 480, tension spring; 490, slot; 500, positioning mechanism; 510, mounting cavity; 520, return spring; 530, moving plate; 540, positioning block; 550, positioning groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] This utility model provides a locking structure for a charging gun, which avoids tilting and pressing, prevents the internal elastic structure from failing to reset, and ensures an unstable locking mechanism for the charging gun. This also prevents the charging gun from being damaged by drops, improving the practicality of the device. Please refer to [link / reference]. Figure 1 It includes a mounting plate 100, a placement base 200, a charging gun 300, and a locking mechanism 400;

[0031] Please refer to it again. Figure 1 The mounting plate 100 is used to mount the placement base 200, the charging gun 300, and the locking mechanism 400;

[0032] Please refer to it again. Figure 1 The placement base 200 is connected to one side of the mounting plate 100, the charging gun 300 is inserted into the inside of the placement base 200, and the locking mechanism 400 is connected to the outside of the charging gun 300.

[0033] Please refer to it again. Figure 2 The locking mechanism 400 includes a housing 410 fixed to the outer wall of the charging gun 300. Slide rods 420 are symmetrically fixed on both sides of the inner cavity of the housing 410. A slide plate 430 slides on the outer wall of the slide rods 420. A locking head 431 is fixed on the bottom edge of the slide plate 430.

[0034] Please refer to it again. Figure 2A compression spring 440 is sleeved on the outside of the slide rod 420. A force-bearing block 450 is fixed in the middle of the bottom of the slide plate 430. A connecting rod 460 slides symmetrically through one side of the outer shell 410. A push plate 461 is fixed at one end of the connecting rod 460. A pressing block 470 is fixed at the other end of the connecting rod 460. A tension spring 480 is sleeved on the outside of the connecting rod 460.

[0035] Please refer to it again. Figure 3 A slot 490 is provided at the top center of the placement seat 200.

[0036] In summary, by pushing the push plate 461, the connecting rod 460 moves, causing the pressing block 470 to move, which in turn stretches the tension spring 480. The pressing block 470 then presses the inclined surface of the force-bearing block 450, causing the force-bearing block 450 to move. This, in turn, moves the sliding plate 430, causing it to rise and press the compression spring 440. Simultaneously, the locking head 431 exits the slot 490, releasing the lock. This prevents tilting and pressing, avoids the internal elastic structure from failing to reset, and prevents the charging gun 300 from becoming unstable. It also prevents the charging gun 300 from falling and being damaged, thus improving the practicality of the device.

[0037] Please refer to it again. Figure 2 The top end of the compression spring 440 is fixedly connected to the top of the inner cavity of the housing 410, and the bottom end of the compression spring 440 is fixedly connected to the top of the slide plate 430.

[0038] Please refer to it again. Figure 2 One end of the tension spring 480 is fixedly connected to one side of the compression block 470, and the other end of the tension spring 480 is fixedly connected to one side of the inner cavity of the outer shell 410.

[0039] Please refer to it again. Figure 2 One side of the force-bearing block 450 and one side of the extrusion block 470 are provided with inclined surfaces, and the inclined surfaces of the force-bearing block 450 and the extrusion block 470 are in contact with each other.

[0040] Please refer to it again. Figure 4 and Figure 5 The placement base 200 is provided with a positioning mechanism 500. The positioning mechanism 500 includes mounting cavities 510 symmetrically opened on the inner side wall of the placement base 200. A return spring 520 is fixed in the middle of one side of the mounting cavity 510. A moving plate 530 is fixed at one end of the return spring 520. A positioning block 540 is fixed in the middle of one side of the moving plate 530. A positioning groove 550 is symmetrically opened on the outer end of the charging gun 300.

[0041] Please refer to it again. Figure 4 The movable plate 530 slides inside the mounting cavity 510, and the outer side wall of the movable plate 530 is in contact with the inner side wall of the mounting cavity 510.

[0042] Please refer to it again. Figure 4 and Figure 5 The end of the positioning block 540 is provided with an arc surface, and the positioning groove 550 is an arc-shaped groove.

[0043] In summary, by inserting the charging gun 300 into the placement base 200, the arc surface of the positioning block 540 is pressed, causing the positioning block 540 to retract into the mounting cavity 510. This drives the moving plate 530 to move, pressing the return spring 520. When the positioning block 540 aligns with the positioning groove 550, the return spring 520 resets the moving plate 530, causing the positioning block 540 to reset and embed itself in the positioning groove 550. This provides initial positioning and locking of the charging gun 300. The addition of a locking structure further enhances the stability of the locking, improves the practicality of the device, and prevents it from falling.

[0044] In practical use, when locking the charging gun 300, the person skilled in the art pushes the push plate 461, causing the connecting rod 460 to move, which in turn moves the pressing block 470, stretching the tension spring 480. The pressing block 470 then presses the inclined surface of the force-bearing block 450, causing the force-bearing block 450 to move, thereby moving the sliding plate 430. This causes the sliding plate 430 to rise, compressing the compression spring 440. As the sliding plate 430 rises, it also causes the locking head 431 to rise. Then, the charging gun 300 is inserted into the placement seat 200, pressing the arc surface of the positioning block 540, causing... The positioning block 540 retracts into the mounting cavity 510, causing the moving plate 530 to move and press the reset spring 520. When the positioning block 540 is aligned with the positioning groove 550, the reset of the reset spring 520 causes the moving plate 530 to reset, so that the positioning block 540 is embedded in the positioning groove 550, thereby initially positioning and locking the charging gun 300. The push plate 461 is loosened, and the reset of the compression spring 440 and the tension spring 480 causes the slide plate 430 and the pressing block 470 to reset, so that the card head 431 is embedded in the card slot 490, completing the locking.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A locking structure for a charging gun, characterized in that: The device includes a mounting plate (100), a placement base (200), a charging gun (300), and a locking mechanism (400). The placement base (200) is connected to one side of the mounting plate (100), and the charging gun (300) is inserted into the interior of the placement base (200). The locking mechanism (400) is connected to the outside of the charging gun (300). The locking mechanism (400) includes a housing (410) fixed to the outer wall of the charging gun (300). Slide rods (420) are symmetrically fixed on both sides of the inner cavity of the housing (410), and a sliding plate (430) slides on the outer wall of the slide rods (420). The bottom edge of the slide plate (430) is fixed with a clip (431), the outer side of the slide rod (420) is fitted with a compression spring (440), the bottom center of the slide plate (430) is fixed with a force block (450), a connecting rod (460) is symmetrically slidably through one side of the outer shell (410), a push plate (461) is fixed at one end of the connecting rod (460), a pressing block (470) is fixed at the other end of the connecting rod (460), a tension spring (480) is fitted on the outer side of the connecting rod (460), and a slot (490) is opened at the top center of the placement seat (200).

2. The locking structure for a charging gun according to claim 1, characterized in that: The top end of the compression spring (440) is fixedly connected to the top of the inner cavity of the housing (410), and the bottom end of the compression spring (440) is fixedly connected to the top of the slide plate (430).

3. The locking structure for a charging gun according to claim 1, characterized in that: One end of the tension spring (480) is fixedly connected to one side of the compression block (470), and the other end of the tension spring (480) is fixedly connected to one side of the inner cavity of the outer shell (410).

4. The locking structure for a charging gun according to claim 1, characterized in that: One side of the force-bearing block (450) and one side of the extrusion block (470) are provided with inclined surfaces, and the inclined surfaces of the force-bearing block (450) and the extrusion block (470) are in contact with each other.

5. The locking structure for a charging gun according to claim 1, characterized in that: The placement base (200) is provided with a positioning mechanism (500). The positioning mechanism (500) includes mounting cavities (510) symmetrically opened on the inner side wall of the placement base (200). A return spring (520) is fixed in the middle of one side of the mounting cavity (510). A moving plate (530) is fixed at one end of the return spring (520). A positioning block (540) is fixed in the middle of one side of the moving plate (530). A positioning groove (550) is symmetrically opened on the outer end of the charging gun (300).

6. The locking structure for a charging gun according to claim 5, characterized in that: The movable plate (530) slides inside the mounting cavity (510), and the outer sidewall of the movable plate (530) is in contact with the inner sidewall of the mounting cavity (510).

7. A locking structure for a charging gun according to claim 5, characterized in that: The end of the positioning block (540) is provided with an arc surface, and the positioning groove (550) is an arc-shaped groove.