Charging safety low-voltage protection device for charging pile

Abstract

The utility model discloses a charging safety low-voltage protection device for a charging pile, which comprises a shell in which a low-voltage air switch is arranged, and is characterized in that four sliding holes are formed in the shell, a matching plate is arranged in the sliding holes in a sliding manner, one side of the matching plate is provided with a plug cylinder, and the other side of the matching plate is provided with a socket. An inserting cylinder is arranged in the shell, an inserting assembly used for being inserted into a wall hole is arranged at the bottom of the inserting cylinder, a plurality of sliding grooves are formed in the inserting cylinder, moving blocks are arranged in the sliding grooves in a sliding mode, and structures such as a matching plate, a rotating block, the inserting cylinder, the moving blocks and friction blocks are arranged in the shell, so that after the inserting cylinder is inserted into the wall hole, the inserting cylinder can be inserted into the wall hole; the movable block and the friction block can extend out of the inserting cylinder and then are clamped and fixed with a wall hole, and the movable block can be elastically reset through a spring, so that the movable block and the friction block are conveniently separated from the wall hole in a clamping manner, and recycling and reusing are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging pile technical field, specifically a charging pile charging safety low voltage protection device. BACKGROUND

[0002] The charging pile of new energy automobile is generally realized by air circuit breaker when carrying out low voltage protection, and the air circuit breaker can trigger circuit breaking to effectively protect the charging pile under low voltage environment. The air circuit breaker for charging pile charging low voltage protection has the defects that when the air circuit breaker is fixed on the wall, the expansion bolt is fixed and clamped with the hole in the wall. It is difficult to disassemble after fixed connection, and it is not convenient for subsequent maintenance and disassembly, and people have carried out a lot of research on this. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem that the charging pile charging safety low voltage protection device can solve the problems in the prior art.

[0004] The utility model is realized through the following technical schemes: a charging pile charging safety low voltage protection device of the utility model, including the casing, be provided with low voltage air switch in the casing, its characterized in that, be provided with four slide holes in the casing, be provided with the cooperation board that slides in the slide hole, the cooperation board one side is provided with the plug-in barrel, the plug-in barrel bottom is provided with the plug-in assembly for being inserted into the wall hole, be provided with a plurality of sliding grooves in the plug-in barrel, be provided with the moving block that slides in the sliding groove, be provided with the threaded shaft that rotates in the plug-in barrel, the threaded shaft outside is provided with mobile sliding block assembly.

[0005] Further technical scheme, the casing is provided with a through groove.

[0006] Further technical scheme, one side of the threaded shaft is provided with a rotating block.

[0007] Further technical scheme, the cooperation board top is provided with a rotating seat, and the rotating block is rotatably arranged in the rotating seat.

[0008] Further technical scheme, the rotating block top is provided with a clamping groove.

[0009] Further technical scheme, one side of the moving block is provided with a plurality of friction blocks.

[0010] Further technical scheme, the plug-in assembly includes an external thread barrel, and a round hole is formed in the external thread barrel.

[0011] Further technical scheme, the plug-in barrel bottom is provided with an internal thread hole, and the external thread barrel is threadedly connected with the internal thread hole.

[0012] A further technical solution includes a sliding slider assembly comprising a mating groove disposed within the sliding block, a lifting block being threadedly connected to the outer surface of the threaded shaft, four protrusions being disposed around the lifting block, the protrusions being slidably connected into the mating groove, an inclined surface being disposed between the protrusions and the mating groove, and an elastic structure being disposed between the sliding block and the insertion cylinder.

[0013] A further technical solution includes an elastic structure comprising protrusions on both sides of the movable block, wherein multiple springs are elastically disposed between the protrusions and the inner end wall of the insertion cylinder.

[0014] The beneficial effects of this utility model are as follows: First, by setting a mating plate, rotating block, plug-in cylinder, moving block and friction block in the housing, after the plug-in cylinder is inserted into the wall hole, the moving block and friction block can extend out of the plug-in cylinder and then be locked with the wall hole. In addition, a spring can be used to elastically reset the moving block, so that the moving block and friction block can be disengaged from the wall hole and can be recycled and reused.

[0015] 2. After the external threaded cylinder is threadedly connected to the internal threaded hole, the external threaded cylinder allows personnel to easily insert the external threaded cylinder and the plug-in cylinder into the hole in the wall. The hexagonal slot allows personnel to rotate the external threaded cylinder to better lock and fix it with the internal threaded hole. Attached Figure Description

[0016] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of a charging pile charging safety low-voltage protection device according to the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the rear structure of the device;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the card connector assembly;

[0020] Figure 4 for Figure 3 A bottom view of the structure of the card connector assembly;

[0021] Figure 5 for Figure 4 A schematic diagram at point A in the middle;

[0022] Figure 6 for Figure 3 Internal structure diagram of the card connector assembly;

[0023] Figure 7 for Figure 6 A schematic diagram at point B in the middle;

[0024] In the figure, there are: housing 11, sliding hole 12, through groove 13, low-pressure air switch 14, rotating seat 21, rotating block 22, snap-fit ​​groove 23, mating plate 24, external threaded cylinder 25, hexagonal snap-fit ​​groove 26, round hole 27, moving block 28, friction block 29, sliding groove 31, plug-in cylinder 32, abutting groove 33, spring 34, protrusion 35, internal threaded hole 38, threaded shaft 39, lifting block 41, protrusion 42, and inclined surface 43. Detailed Implementation

[0025] like Figures 1-7 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationship of this utility model is consistent in the up, down, left, right, front and back directions. The charging pile charging safety low voltage protection device includes a housing 11. A low voltage air switch 14 is provided in the housing 11. Four sliding holes 12 are provided in the housing 11. A mating plate 24 is slidably provided in the sliding holes 12. A plug-in cylinder 32 is provided on one side of the mating plate 24. A plug-in component for plugging into a hole in the wall is provided at the bottom of the plug-in cylinder 32. Multiple sliding grooves 31 are provided in the plug-in cylinder 32. Moving blocks 28 are slidably provided in the sliding grooves 31. A threaded shaft 39 is rotatably provided in the plug-in cylinder 32. A rotating block 22 is provided on one side of the threaded shaft 39. A movable slider assembly that can drive multiple moving blocks 28 to extend out of the plug-in cylinder 32 is provided on the outside of the threaded shaft 39.

[0026] Advantageously, the housing 11 is provided with through slots 13 located on the upper and lower sides of the low-pressure air switch 14.

[0027] Advantageously, the top of the mating plate 24 is provided with a rotating seat 21, and the rotating block 22 is rotatably disposed in the rotating seat 21.

[0028] Advantageously, the top of the rotating block 22 is provided with a snap-fit ​​groove 23.

[0029] Advantageously, a plurality of friction blocks 29 are provided on one side of the movable block 28, and the friction blocks 29 play an anti-slip friction role.

[0030] Advantageously, the plug-in assembly includes an external threaded cylinder 25, with a circular hole 27 provided inside the external threaded cylinder 25, and the threaded shaft 39 is movably disposed in the circular hole 27.

[0031] Beneficially, the outer threaded cylinder 25 is provided with a hexagonal clamping groove 26 on the outer surface, which facilitates the rotation of the outer threaded cylinder 25 by clamping with tools, and the bottom of the insertion cylinder 32 is provided with an inner threaded hole 38, and the outer threaded cylinder 25 is connected in threaded cooperation with the inner threaded hole 38.

[0032] Beneficially, the movable sliding block assembly includes a counter groove 33 arranged in the movable block 28, and the outer surface of the threaded shaft 39 is provided with a lifting block 41 in threaded cooperation, and the lifting block 41 is provided with four protrusions 42 around, which are slidingly connected into the counter groove 33, and a slope 43 is arranged between the protrusions 42 and the counter groove 33, which is inclined to make the movable block 28 slide away from the threaded shaft 39 after the lifting block 41 and the protrusions 42 slide downward, and the movable block 28 is provided with a resilient structure between the movable block 28 and the insertion cylinder 32, so that the movable block 28 can be elastically returned.

[0033] Beneficially, the resilient structure includes protrusions 35 arranged on both sides of the movable block 28, and a plurality of springs 34 are elastically arranged between the protrusions 35 and the inner side wall of the insertion cylinder 32, so that the movable block 28 has the function of elastic reset towards the threaded shaft 39 after the protrusions 42 move upward.

[0034] By opening a hole corresponding to the sliding hole 12 in the wall body, and after installing the shell 11 on one side of the hole, the low-voltage air switch 14 is electrically connected with the charging pile, so that the low-voltage protection function of the charging pile can be realized.

[0035] Since the size of the hole is large enough to accommodate the insertion of the insertion cylinder 32, the person can clamp into the clamping groove 23 by using tools, and then push the matching plate 24, the insertion cylinder 32 and the outer threaded cylinder 25 into the wall hole as a whole, and then rotate the clamping groove 23 and the rotating block 22 to make the threaded shaft 39 rotate, since the threaded shaft 39 is in threaded cooperation with the lifting block 41, and the protrusions 42 are in sliding cooperation with the counter groove 33, and then the movable block 28 is in sliding cooperation with the sliding groove 31, so that the lifting block 41 can slide downward.

[0036] Secondly, since the protrusions 42 are limited to rotate and slide downward, under the action of the slope 43, the protrusions 42 can drive the movable block 28 to extend out of the sliding groove 31 after moving downward, and then the friction block 29 can be clamped into the wall hole, so that the shell 11 can be firmly fixed on one side of the wall.

[0037] When disassembling the shell 11, only the rotating block 22 needs to be rotated in the opposite direction, so that the threaded shaft 39 drives the lifting block 41 and the protrusions 42 to move upward, and since the springs 34 are arranged, the movable block 28 can be elastically returned into the insertion cylinder 32, so that the movable block 28 and the friction block 29 are disconnected from the clamping of the wall hole.

[0038] A through hole is provided in the slide hole 12 to match the insertion tube 32 to slide the insertion tube 32 out.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application; therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A charging safety low-voltage protection device for a charging pile, comprising a shell (11), a low-voltage air switch (14) is arranged in the shell (11), characterized in that, Four sliding holes (12) are arranged in the shell (11), a matching plate (24) is arranged in the sliding holes (12), a plug-in barrel (32) is arranged on one side of the matching plate (24), a plug-in assembly for plugging into a wall hole is arranged at the bottom of the plug-in barrel (32), a plurality of sliding grooves (31) are arranged in the plug-in barrel (32), a moving block (28) is arranged in the sliding grooves (31), a threaded shaft (39) is arranged in the plug-in barrel (32) and rotates, and a moving sliding block assembly is arranged on the outer side of the threaded shaft (39).

2. The charging safety low-voltage protection device for a charging pile according to claim 1, characterized in that: The shell (11) is provided with a penetrating groove (13).

3. The charging safety low-voltage protection device for charging piles according to claim 1, characterized in that: One side of the threaded shaft (39) is provided with a rotating block (22).

4. The charging safety low-voltage protection device for charging piles according to claim 3, characterized in that: The top of the matching plate (24) is provided with a rotating seat (21), and the rotating block (22) is arranged in the rotating seat (21) and rotates.

5. The charging safety low-voltage protection device for charging piles according to claim 3, characterized in that: The top of the rotating block (22) is provided with a clamping groove (23).

6. The charging safety low-voltage protection device for charging piles according to claim 1, characterized in that: One side of the moving block (28) is provided with a plurality of friction blocks (29).

7. The charging safety low-voltage protection device for charging piles according to claim 1, characterized in that: The plug-in assembly comprises an outer threaded barrel (25), and a circular hole (27) is arranged in the outer threaded barrel (25).

8. The charging safety low-voltage protection device for charging piles according to claim 7, characterized in that: The bottom of the plug-in barrel (32) is provided with an inner threaded hole (38), and the outer threaded barrel (25) is threadedly connected with the inner threaded hole (38).

9. The charging safety low-voltage protection device of a charging pile according to any one of claims 1-8, characterized in that: The moving sliding block assembly comprises an abutting groove (33) arranged in the moving block (28), a lifting block (41) is threadedly connected with the outer surface of the threaded shaft (39), four protrusions (42) are arranged around the lifting block (41), the protrusions (42) are slidably connected into the abutting groove (33), an inclined surface (43) is arranged between the protrusions (42) and the abutting groove (33), and an elastic structure is arranged between the moving block (28) and the plug-in barrel (32).

10. The charging pile charging safety low-voltage protection device according to claim 9, characterized in that: The elastic structure comprises protrusions (35) arranged on both sides of the moving block (28), a plurality of springs (34) are elastically arranged between the protrusions (35) and the inner side end wall of the plug-in barrel (32).

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