Locking structure and charging gun

Abstract

The utility model relates to the charging gun field, in particular to a locking structure and a charging gun, including lock seat, lock rod, locking subassembly and sliding subassembly, the sliding subassembly includes the slide rail that is provided on the lock seat and the slider that is slidably connected with the slide rail, the slide rail extends along the first direction, the lock rod is provided on the slider, and the lock rod is provided on the locking subassembly. The lock rod extends towards the first direction, and when the sliding block slides to a first preset position from other positions, the lock rod gradually extends out of the lock seat so as to be in locking fit with an external locking piece; the locking assembly comprises a first limiting piece and a second limiting piece, the first limiting piece is arranged on the sliding block, the second limiting piece is arranged on the lock seat or the sliding rail, and the second limiting piece is located at the first preset position; the utility model has the advantage of convenient operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging devices, and in particular relates to a locking structure and a charging gun. Background Art

[0002] Currently, when an electric vehicle is charged using a charging gun, the charging gun and the vehicle body need to be locked to prevent the charging gun from falling off the vehicle during the charging process. The existing locking structure is generally achieved through an electronic lock, specifically, an electronic lock rod is added inside the charging seat on the car, and the electronic lock rod cooperates with the lock buckle on the charging gun. After the charging gun is inserted into the charging seat, the lock button on the car is pressed, and the electronic lock rod and the charging gun are locked.

[0003] After the user removes the charging gun from the charging pile and inserts it into the charging seat of the car, the user needs to enter the car again and press the lock button to lock the charging gun. The locking structure on the existing electric vehicle has the problem of inconvenient charging operation. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the locking structure on the existing electric vehicle has the problem of inconvenient charging operation, and provides a locking structure and a charging gun.

[0005] In order to solve the above technical problems, on the one hand, the embodiment of the utility model provides a locking structure.

[0006] It includes a lock seat, a lock rod, a locking assembly and a sliding assembly.

[0007] The sliding assembly includes a slide rail disposed on the lock seat and a slider slidably connected to the slide rail, the slide rail extends along a first direction, the lock rod is disposed on the slider, the lock rod extends along the first direction, and when the slider slides to a first preset position, the lock rod extends out of the lock seat so as to be locked with an external locking member;

[0008] The locking assembly includes a first limiting member and a second limiting member, wherein the first limiting member is arranged on the sliding block, and the second limiting member is arranged on the lock seat or the sliding rail;

[0009] When the slider moves to the first preset position, the first limiting member and the second limiting member are locked and matched, so that the slider and the slide rail temporarily remain relatively still;

[0010] By applying an external force on the sliding block, the locking cooperation between the first limiting member and the second limiting member can be released.

[0011] Optionally, a sliding cavity and a through hole are provided in the lock seat, the sliding cavity extends along a first direction, and the through hole is provided at one end of the sliding cavity close to the first preset position;

[0012] The slider is arranged in the sliding cavity, and the slider can slide along the first direction in the sliding cavity; the locking rod is arranged on a side of the slider close to the first preset position, and when the slider moves to the first preset position, the locking rod passes through the lock seat from the through hole.

[0013] Optionally, the slider is provided with a first hole and a second hole, the bottom end of the first hole is connected to the top end of the second hole, the aperture of the first hole is larger than the aperture of the second hole, so that the bottom wall of the first hole forms a limiting surface;

[0014] The first limiting member comprises a limiting ring, a sealing plate, a spring, a limiting rod and a ball; the first end of the limiting rod is located in the first hole, the second end of the limiting rod is penetrated in the second hole, the ball is arranged on the second end, the limiting ring is fixed around the outside of the limiting rod, the spring is sleeved on the limiting rod, the spring and the limiting ring are both arranged in the first hole, the ball and the spring are respectively located on opposite sides of the limiting ring, the sealing plate closes the opening of the first hole, the diameter of the limiting ring is larger than the aperture of the second hole, so that the surface of the limiting ring close to the second hole can overlap the limiting surface;

[0015] A limiting groove is provided on the inner wall of the sliding cavity, the limiting groove is located at the first preset position, the limiting groove constitutes the second limiting member, and when the first limiting member moves to the first preset position, the ball can be stuck in the limiting groove.

[0016] Optionally, it further comprises a toggle member, wherein the toggle member is detachably connected to the slider;

[0017] The lock seat is provided with a sliding groove, the sliding groove extends along the first direction, the sliding groove communicates with the sliding cavity and the outside, and the toggle member is arranged in the sliding groove.

[0018] Optionally, a latch pin is further included, the slider is provided with a first latch slot, the toggle member is provided with a second latch slot, and the latch pin is inserted into the first latch slot and the second latch slot to pin-connect the toggle member and the slider.

[0019] Optionally, the toggle member includes a first toggle plate and a second toggle plate, the top end of the first toggle plate is connected to a plate surface of the second toggle plate close to the lock seat, the first toggle plate is perpendicular to the second toggle plate, the first toggle plate is provided with the second slot, and the second toggle plate is provided outside the lock seat;

[0020] The slider is provided with a receiving groove, the side wall of the receiving groove is provided with the first clamping groove, the first toggle plate is embedded in the receiving groove, the first clamping groove and the second clamping groove are opposite, and the clamping pin is inserted into the first clamping groove and the second clamping groove.

[0021] Optionally, a third limit member is further included, wherein the third limit member is arranged on the lock seat or the slide rail, and the third limit member is arranged at a second preset position. When the slider moves from the first preset position to the second preset position, the length of the lock rod extending out of the lock seat gradually decreases.

[0022] Optionally, a stop groove is provided on the inner wall of the sliding cavity, and the stop groove constitutes the third limiting member. When the first limiting member moves to the second preset position, the ball can be stuck in the stop groove, and the stop groove and the limiting groove are arranged at intervals along the first direction.

[0023] Optionally, the first limiting member is a ball plunger; a limiting groove is provided on the inner wall of the sliding cavity, the limiting groove constitutes the second limiting member, and the ball plunger is clamped in the limiting groove.

[0024] On the other hand, an embodiment of the utility model further provides a charging gun, comprising an upper cover, a gun body and the above-mentioned locking structure;

[0025] A cover groove is provided on the gun body, and the upper cover has an inner cavity facing the cover groove. The upper cover and the gun body are connected to make the cover groove and the inner cavity communicate with each other. The connected cover groove and the inner cavity form a closed cavity. The slide rail and the slide block are both arranged in the cavity, and the locking rod is penetrated by the upper cover; the second limit member is arranged on the bottom wall of the cover groove.

[0026] According to the locking structure and charging gun of the embodiment of the utility model, when charging, the user only needs to push the slider to slide along the first direction on the slide rail to the first preset position, and the first limiter and the second limiter will lock and cooperate, and the first limiter will be stationary relative to the second limiter, so that the position of the slider is relatively stationary. At this time, the lock rod extends out of the lock seat, and the lock rod can be inserted into the external device and lock with the locking member on the external device. The user no longer needs to enter the car to control the locking structure through the car, and the charging operation is more convenient. After charging is completed, only external force needs to be applied to the slider to complete the unlocking of the charging gun and the car, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a locking structure provided in an embodiment of the utility model applied to a charging gun;

[0028] Figure 2An exploded view of a locking structure provided in an embodiment of the utility model applied to a charging gun;

[0029] Figure 3 A half-section diagram of a locking structure provided in an embodiment of the utility model applied to a charging gun;

[0030] Figure 4 A cross-sectional view of a slider and a first position-limiting member of a locking structure provided in one embodiment of the utility model;

[0031] Figure 5 An exploded view of a slider and a first position-limiting member of a locking structure provided in one embodiment of the utility model;

[0032] Figure 6 A partial half-section diagram of a locking structure provided in an embodiment of the utility model applied to a charging gun;

[0033] Figure 7 An exploded view of a locking structure provided in an embodiment of the utility model applied to a charging gun.

[0034] The reference numerals in the specification are as follows: 100, upper cover; 101, inner chamber; 200, gun body; 201, cover groove; 202, slide plate;

[0035] 1. Lock seat; 11. Sliding cavity; 12. Through hole; 13. Sliding groove; 2. Lock rod; 31. Slide rail; 32. Sliding block; 321. First hole; 322. Second hole; 323. Accommodating groove; 324. First clamping groove; 4. First limiting member; 41. Closing plate; 42. Spring; 43. Limiting ring; 44. Limiting rod; 45. Ball; 51. Second limiting member; 52. Third limiting member; 6. Toggle member; 61. Second clamping groove; 62. First toggle plate; 63. Second toggle plate; 7. Pin. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0037] like Figures 1 to 4As shown, an embodiment of the utility model provides a locking structure, including a lock seat 1, a lock rod 2, a locking assembly and a sliding assembly, the sliding assembly including a slide rail 31 arranged on the lock seat 1 and a slider 32 slidably connected to the slide rail 31, the slide rail 31 extends along a first direction, the lock rod 2 is fixed on the slider 32, the lock rod 2 extends along the first direction, when the slider 32 slides from other positions to a first preset position, the lock rod 2 gradually extends out of the lock seat 1 so as to be locked with an external locking member. The locking assembly includes a first limit member 4 and a second limit member 51, the first limit member 4 is arranged on the slider 32, the second limit member 51 is arranged on the lock seat 1 or the slide rail 31, and the second limit member 51 is located at the first preset position; when the slider 32 drives the first limit member 4 to move to the first preset position, the first limit member 4 and the second limit member 51 can be locked so that the slider 32 and the slide rail remain temporarily relatively still; when the slider 32 is subjected to external force, the slider 32 drives the first limit member 4 to disengage from the second limit member 51 to release the locking cooperation between the slide rail and the slider.

[0038] In this embodiment, when the slider 32 slides along the first direction on the slide rail 31 to the first preset position, the first stopper 4 and the second stopper 51 are locked and matched, so that the first stopper 4 is stationary relative to the second stopper 51 and no longer moves along the slide rail 31. At this time, the lock rod 2 extends out of the lock seat 1, and the lock rod 2 can be inserted into the external device and locked with the locking member on the external device.

[0039] Taking an electric car and a charging gun as an example, the locking structure is set on the charging gun, the electric car is an external device and a lock buckle is set on the charging seat of the electric car. When the locking rod 2 extends out of the lock seat 1, the locking rod 2 is inserted into the charging seat of the electric car and locked with the lock buckle. At this time, the charging gun is locked with the charging seat of the electric car, and the charging gun will not fall during charging. Compared with the prior art, when using the charging gun, this embodiment can achieve the locking effect by applying an external force to the slider 32, and the operation is relatively simple. Moreover, the electronic devices of the electronic lock in the prior art are prone to problems when exposed to high temperature and the like, while the mechanical structure adopted in this embodiment is more stable than the prior art and more resistant to harsh working conditions.

[0040] Reference Figures 5 to 7 As an example, a sliding cavity 11 and a through hole 12 are provided in the lock seat 1. The sliding cavity 11 extends along a first direction, and the through hole 12 is provided at one end of the sliding cavity 11 close to the first preset position. A slider 32 is provided in the sliding cavity 11, and the slider 32 is slidably connected to the sliding cavity 11 to slide in the sliding cavity 11 along the first direction, and the sliding cavity 11 constitutes a slide rail 31; the lock rod 2 is provided at one side of the slider 32 close to the first preset position, and when the slider 32 moves to the first preset position, the lock rod 2 passes through the lock seat 1 from the through hole 12.

[0041] Reference Figure 4As an example, a first hole 321 and a second hole 322 are provided on the slider 32, the bottom end of the first hole 321 is connected to the top end of the second hole 322, the aperture of the first hole 321 is larger than the aperture of the second hole 322, the first hole 321 and the second hole 322 form a stepped hole, so that the bottom wall of the first hole 321 forms a limiting surface.

[0042] Reference Figure 4 and Figure 5 The first limiting member 4 includes a limiting ring 43, a sealing plate 41, a spring 42, a limiting rod 44 and a ball 45; the first end of the limiting rod 44 is located in the first hole 321, the second end of the limiting rod 44 is penetrated through the second hole 322, the ball 45 is arranged on the second end, the limiting ring 43 is fixed on the limiting rod 44 in a circumferential manner, the spring 42 is sleeved on the limiting rod 44, the spring 42 and the limiting ring 43 are both arranged in the first hole 321, the ball 45 and the spring 42 are respectively located on opposite sides of the limiting ring 43, the sealing plate 41 closes the opening of the first hole 321, the diameter of the limiting ring 43 is larger than the aperture of the second hole 322 so that the surface of the limiting ring 43 close to the second hole 322 can overlap on the limiting surface.

[0043] A limiting groove is provided on the inner wall of the sliding cavity 11, the limiting groove is located at the first preset position, and the limiting groove constitutes a second limiting member 51. When the first limiting member 4 moves to the first preset position, the ball 45 can be inserted into the limiting groove. The spring 42 is a pressure spring 42, and the spring 42 always provides a force for the limiting rod 44 to extend the slider 32, so that the limiting rod 44 and the ball 45 thereon can have a tendency to extend the slider 32.

[0044] The first stopper 4 in this embodiment uses the spring 42 to drive the stopper rod 44 to slide along the axial direction of the first hole 321. The stopper rod 44 drives the ball 45 connected thereto to slide back and forth along the axial direction of the first hole 321. When the first stopper 4 moves to the first preset position, the ball 45 is directly opposite to the stopper groove. At this time, the spring 42 drives the ball 45 to snap into the stopper groove, completing the cooperation between the first stopper 4 and the second stopper 51. The slider 32 is always located at the first preset position without external interference. When there is external interference, the external force drives the first stopper rod 44 to move. At this time, the spring 42 contracts, the ball 45 and the stopper rod 44 move toward the slider 32, the ball 45 is separated from the stopper groove, and the first stopper 4 and the second stopper 51 are separated and no longer locked.

[0045] As an example, the locking structure further includes a toggle member 6, which is detachably connected to the slider 32. The lock base 1 is provided with a sliding groove 13, which extends along a first direction, connects the sliding cavity 11 with the outside, and the toggle member 6 is arranged in the sliding groove 13. The user applies an external force to the slider through the toggle member 6, and a plurality of stripes are arranged on the toggle member 6 to increase friction.

[0046] Reference Figure 6 and Figure 7 As an example, the locking structure also includes a latch 7, a first latch groove 324 is provided on the slider 32, and a second latch groove 61 is provided on the toggle member 6. The latch 7 is inserted into the first latch groove 324 and the second latch groove 61 to pin the toggle member 6 and the slider 32.

[0047] Reference Figure 7 As an example, the toggle member 6 includes a first toggle plate 62 and a second toggle plate 63, the top of the first toggle plate 62 is connected to the plate surface of the second toggle plate 63, the first toggle plate 62 is perpendicular to the second toggle plate 63, the first toggle plate 62 is provided with a second slot 61, and the second toggle plate 63 is provided outside the lock seat 1.

[0048] The slider 32 is provided with a receiving groove 323, the side wall of the receiving groove 323 is provided with a first clamping groove 324, the first toggle plate 62 is embedded in the receiving groove 323, the first clamping groove 324 and the second clamping groove 61 are directly opposite, and the bayonet 7 is inserted into the first clamping groove 324 and the second clamping groove 61. In this embodiment, the toggle member 6 and the slider 32 are pinned together by the bayonet 7, which facilitates the maintenance and replacement of the slider 32 or the toggle member 6.

[0049] As an example, a third limit member 52 is also included. The third limit member 52 is set on the lock seat 1 or the slide rail 31. The third limit member 52 is set at the second preset position. When the slider 32 moves from the first preset position to the second preset position, the length of the lock rod 2 extending out of the lock seat 1 decreases.

[0050] As an example, a stop groove is provided on the inner wall of the sliding cavity 11, and the stop groove is located at the second preset position. The stop groove constitutes a third limiter 52. When the first limiter 4 moves to the second preset position, the ball 45 can be inserted into the stop groove, and the stop groove and the limit groove are arranged at intervals along the first direction. The existence of the stop groove is mainly to prevent the slider 32 from sliding arbitrarily, thereby driving the lock rod 2 to slide arbitrarily, avoiding the lock rod 2 from shaking along the first direction when taking the charging gun, and even avoiding the lock rod 2 from interfering with the insertion of the charging gun when the charging gun is not inserted into the socket. In this embodiment, the second preset position allows the lock rod 2 to be located in the lock seat 1 as much as possible, and at most only a small part of the lock rod 2 extends out of the lock seat 1.

[0051] Reference Figures 1 to 7In one embodiment, this embodiment further provides a charging gun, which includes an upper cover 100, a gun body 200 and the above-mentioned locking structure. The gun body 200 is provided with a cover groove 201. The upper cover 100 has an inner cavity 101 opening toward the cover groove 201. The upper cover 100 and the gun body 200 are connected as a whole through a buckle, and the upper cover 100 is arranged in the cover groove 201. The gun body 200 and the upper cover 100 surround a closed cavity, and the closed cavity is formed by the cover groove and the inner cavity. The whole formed by the gun body 200 and the upper cover 100 constitutes a lock seat 1 in the locking structure.

[0052] Two slides 202 are arranged on the bottom wall of the cover groove 201, and the two slides 202 are parallel to each other. The inner wall of the upper cover 100, the bottom wall of the cover groove 201 and the opposite sides of the two slides 202 surround a sliding cavity 11 of the locking structure. The two slides 202 constitute a sliding rail 31 in the locking structure. The upper wall of the slider 32 abuts against the inner wall of the upper cover 100, and the two side walls of the slider 32 abut against the two slides 202 respectively. The slider 32 can slide along the slider 202 in the gap between the two slides 202 along the first direction.

[0053] The sliding groove 13 in the locking structure is arranged at the top of the upper cover 100, and the through hole 12 in the locking structure is also arranged on the upper cover 100. The limiting groove and the stopping groove are both arranged on the bottom wall of the cover groove 201, and the limiting groove and the stopping groove are arranged at intervals. Specifically, the limiting groove and the stopping groove are respectively located at both ends of the extension direction of the slide plate 202.

[0054] The working principle of the charging gun of the embodiment of the utility model is as follows: when the charging gun is inserted into the charging seat of the electric vehicle, the toggle member 6 is manually pushed so that the toggle member 6 drives the slider 32 to move from the second preset position to the first preset position, and the ball 45 of the first limiting member 4 is inserted into the limiting groove. At this time, the locking rod 2 extends out of the upper cover 100 from the through hole 12 of the upper cover 100, and the locking rod 2 is locked with the lock buckle on the charging seat of the electric vehicle.

[0055] When charging is finished, the toggle member 6 is manually pushed, and the toggle member 6 drives the slider 32 to move from the first preset position to the second preset position. When the first limit member 4 is facing the stop groove on the second preset position, the ball 45 of the first limit member 4 is stuck in the stop groove, and the locking rod 2 retracts to the initial position. At this time, the user can unplug the charging gun from the car.

[0056] In other embodiments, the first stopper 4 is a first magnet, the second stopper 51 is a second magnet, and the third stopper 52 is a third magnet, and the first magnet can be adsorbed with the second magnet or the third magnet, respectively. When the first stopper 4 moves to the first preset position, the first magnet adsorbs the second magnet, so that the first slider 32 is located at the first preset position and does not move. Similarly, when the first stopper 4 moves to the second preset position, the first magnet adsorbs the third magnet, so that the first slider 32 is located at the second preset position and does not move.

[0057] In other embodiments, the slide rail 31 is a track, which is a common technical means in machinery. As long as the slider 32 can be used in conjunction with the slide rail 31 to complete the sliding of the slider 32 along the slide rail 31, it will not be elaborated.

[0058] In other embodiments, the first limiting member 4 is a ball plunger. A limiting groove is provided on the inner wall of the sliding cavity 11, the limiting groove is located at the first preset position, the limiting groove constitutes the second limiting member 51, and the ball plunger is engaged with the limiting groove. The structure of the limiting groove in this embodiment is the same as that of the limiting groove in the above embodiment, but the first limiting member 4 in this embodiment directly adopts a common ball plunger, the ball plunger is fixed on the slider 32, and the ball of the ball plunger faces the surface where the limiting groove is located. When the ball plunger moves until it is facing the limiting groove, the ball of the ball plunger is engaged in the limiting groove.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking structure, characterized in that: It includes a lock seat, a lock rod, a locking assembly and a sliding assembly. The sliding assembly includes a slide rail disposed on the lock seat and a slider slidably connected to the slide rail, the slide rail extends along a first direction, the lock rod is disposed on the slider, the lock rod extends along the first direction, and when the slider slides to a first preset position, the lock rod extends out of the lock seat so as to be locked with an external locking member; The locking assembly includes a first limiting member and a second limiting member, wherein the first limiting member is arranged on the sliding block, and the second limiting member is arranged on the lock seat or the sliding rail; When the slider moves to the first preset position, the first limiting member and the second limiting member are locked and matched, so that the slider and the slide rail temporarily remain relatively still; By applying an external force on the sliding block, the locking cooperation between the first limiting member and the second limiting member can be released.

2. The locking structure according to claim 1, characterized in that: A sliding cavity and a through hole are provided in the lock seat, the sliding cavity extends along the first direction, and the through hole is provided at one end of the sliding cavity close to the first preset position; The slider is arranged in the sliding cavity, and the slider can slide along the first direction in the sliding cavity; the locking rod is arranged on a side of the slider close to the first preset position, and when the slider moves to the first preset position, the locking rod passes through the lock seat from the through hole.

3. The locking structure according to claim 2, characterized in that: The slider is provided with a first hole and a second hole, the bottom end of the first hole is connected to the top end of the second hole, the aperture of the first hole is larger than the aperture of the second hole, so that the bottom wall of the first hole forms a limiting surface; The first limiting member comprises a limiting ring, a sealing plate, a spring, a limiting rod and a ball; the first end of the limiting rod is located in the first hole, the second end of the limiting rod is penetrated in the second hole, the ball is arranged on the second end, the limiting ring is fixed around the outside of the limiting rod, the spring is sleeved on the limiting rod, the spring and the limiting ring are both arranged in the first hole, the ball and the spring are respectively located on opposite sides of the limiting ring, the sealing plate closes the opening of the first hole, the diameter of the limiting ring is larger than the aperture of the second hole, so that the surface of the limiting ring close to the second hole can overlap the limiting surface; A limiting groove is provided on the inner wall of the sliding cavity, the limiting groove is located at the first preset position, the limiting groove constitutes the second limiting member, and when the first limiting member moves to the first preset position, the ball can be stuck in the limiting groove.

4. The locking structure according to claim 2, characterized in that: Also includes a toggle member, the toggle member is detachably connected to the slider; The lock seat is provided with a sliding groove, the sliding groove extends along the first direction, the sliding groove communicates with the sliding cavity and the outside, and the toggle member is arranged in the sliding groove.

5. The locking structure according to claim 4, characterized in that: It also includes a latch pin, a first latch slot is provided on the slider, a second latch slot is provided on the toggle member, and the latch pin is inserted into the first latch slot and the second latch slot to pin the toggle member and the slider.

6. The locking structure according to claim 5, characterized in that: The toggle member includes a first toggle plate and a second toggle plate, the top end of the first toggle plate is connected to the plate surface of the second toggle plate close to the lock seat, the first toggle plate is perpendicular to the second toggle plate, the first toggle plate is provided with the second slot, and the second toggle plate is provided outside the lock seat; The slider is provided with a receiving groove, the side wall of the receiving groove is provided with the first clamping groove, the first toggle plate is embedded in the receiving groove, the first clamping groove and the second clamping groove are opposite, and the clamping pin is inserted into the first clamping groove and the second clamping groove.

7. The locking structure according to claim 3, characterized in that: It also includes a third limiter, which is arranged on the lock seat or the slide rail. The third limiter is arranged at a second preset position. When the slide block moves from the first preset position to the second preset position, the length of the lock rod extending out of the lock seat gradually decreases.

8. The locking structure according to claim 7, characterized in that: A stop groove is provided on the inner wall of the sliding cavity, and the stop groove constitutes the third limiting member. When the first limiting member moves to the second preset position, the ball can be stuck in the stop groove, and the stop groove and the limiting groove are arranged at intervals along the first direction.

9. The locking structure according to claim 2, characterized in that: The first limiting member is a ball plunger; a limiting groove is arranged on the inner wall of the sliding cavity, the limiting groove constitutes the second limiting member, and the ball plunger is clamped in the limiting groove.

10. A charging gun, characterized in that: It comprises an upper cover, a gun body and a locking structure according to any one of claims 1 to 9; The gun body is provided with a cover groove, the upper cover has an inner cavity facing the cover groove, the upper cover is connected to the gun body so that the cover groove and the inner cavity are connected, and the connected cover groove and the inner cavity form a closed cavity, the slide rail and the slide block are both arranged in the cavity, and the locking rod is passed through the upper cover; The second limiting member is arranged on the bottom wall of the cover groove.

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