Miniature circuit breaker reliable in fixation

Abstract

The utility model discloses a reliably fixed miniature circuit breaker, which comprises a guide rail and a circuit breaker body arranged on the guide rail, one side of the guide rail is provided with a plurality of fixing holes at equal intervals, one side of the circuit breaker body is provided with a pressure-bearing surface and abuts against one side of the guide rail, and the guide rail is provided with a plurality of fixing holes at equal intervals. A telescopic movable block is arranged on the other side of the circuit breaker body, and the circuit breaker body is provided with an elastic piece and abuts against the movable block, so that the movable block is inserted into the fixing hole and tightly pressed on the other side of the guide rail. According to the utility model, the fixing columns are inserted into the fixing holes, so that the circuit breaker body forms a first support holding point, the acting part abuts against the other side of the guide rail, and the acting part and the pressure-bearing surface form a force for clamping the guide rail to form a second support holding point, thereby enabling the circuit breaker body to be stably installed and fixed on the guide rail. And the circuit breaker body is prevented from displacing or being separated from the guide rail, so that the product has the advantages of high safety and firm fixation.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a small circuit breaker with reliable fixing. Background Art

[0002] A circuit breaker is a protective device that can automatically cut off a circuit. When the circuit is overloaded, short-circuited or encounters other abnormal situations, it can quickly cut off the power supply to protect electrical equipment from damage.

[0003] Existing miniature circuit breakers are generally fastened to the mounting rails by snapping. However, in this installation method, when the miniature circuit breaker is connected to the wire of the charging pile, the reaction force of the bent wire will push the miniature circuit breaker to move, causing the miniature circuit breaker to detach from the mounting rail, or in a working environment with severe vibration, it may move or detach, causing inconvenience to the user and unsafe electricity use. Therefore, the applicant has made a useful design and found a solution to the above-mentioned problem. The technical solution to be introduced below is produced in this context. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional small circuit breaker design and provide a product with high safety and firm fixation.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A reliably fixed small circuit breaker comprises a guide rail and a circuit breaker body arranged on the guide rail, wherein one side of the guide rail is provided with a plurality of equally spaced fixing holes, one side of the circuit breaker body is provided with a pressure-bearing surface and abuts against one side of the guide rail, and the other side of the circuit breaker body is provided with a retractable movable block, the circuit breaker body is provided with an elastic member and abuts against the movable block, so that the movable block is inserted into the fixing hole and pressed against the other side of the guide rail, so that the circuit breaker body is connected and fixed with the guide rail, and the movable block is provided with a control block, and when the control block is pulled, the movable block is separated from the fixing hole.

[0007] Preferably, an inclined surface is provided below the pressure-bearing surface, a support block is provided at the bottom of the circuit breaker body and is arranged opposite to the pressure-bearing surface, the support block is provided with a first through hole, limiting grooves are provided on both sides of the first through hole, and a yielding through hole is provided at the bottom of the first through hole.

[0008] Preferably, the movable block is slidably arranged in the yielding through hole, through holes are arranged on both sides of the movable block, the movable block is provided with a fixing column and inserted in the fixing hole, an acting part is arranged above the fixing column and abuts against one side of the guide rail.

[0009] Preferably, detachable guide pillars are provided on both sides of the clearance through hole and pass through the through hole, and the elastic member is arranged on the outer wall of the guide pillar, one end of the elastic member abuts against the clearance through hole, and the other end abuts against the movable block.

[0010] Preferably, one end of the control block is connected and fixed to the movable block, the control block is slidably arranged in the first through hole, limit blocks are provided on both sides of the control block, the limit blocks are slidably arranged in the limit grooves, and the control block is provided with a pull ring, which protrudes from one end of the circuit breaker body.

[0011] Preferably, the elastic member is configured as a spring.

[0012] Beneficial effects:

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model enables the fixing column to be inserted into the fixing hole through the elastic member, so that the circuit breaker body forms a first supporting and holding point, and the action part abuts against the other side of the guide rail, and forms a force clamping the guide rail with the pressure-bearing surface to form a second supporting and holding point, so that the circuit breaker body is stably installed and fixed on the guide rail, and overcomes the force of the bent wire pushing the small circuit breaker and avoids the circuit breaker body from moving or leaving the guide rail in a working environment with severe vibration, thereby ensuring safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a small circuit breaker that is fixed and reliable in the utility model;

[0016] Figure 2 It is a schematic diagram of the side cross-section structure of a small circuit breaker that is reliably fixed according to the utility model;

[0017] Figure 3 This is an exploded view of a small circuit breaker that is fixed and reliable according to the utility model;

[0018] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0019] Figure numerals: 1. guide rail; 2. circuit breaker body; 3. movable block; 4. elastic member; 5. control block; 6. guide column; 11. fixing hole; 21. pressure-bearing surface; 22. support block; 23. first through hole; 24. limiting groove; 25. giving way through hole; 211. inclined surface; 31. through hole; 32. fixing column; 33. action part; 51. limiting block; 52. pull ring. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0023] Reference example Figures 1 to 3 A small circuit breaker with reliable fixing comprises a guide rail 1 and a circuit breaker body 2 arranged on the guide rail 1, a plurality of fixing holes 11 with equal intervals are arranged on one side of the guide rail 1, a pressure-bearing surface 21 is arranged on one side of the circuit breaker body 2 and abuts against one side of the guide rail 1, a retractable movable block 3 is arranged on the other side of the circuit breaker body 2, an elastic member 4 is arranged on the circuit breaker body 2 and abuts against the movable block 3, so that the movable block 3 is inserted into the fixing hole 11 and the movable block 3 is pressed against the other side of the guide rail 1, so that the circuit breaker body 2 is connected and fixed with the guide rail 1, and a control block 5 is arranged on the movable block 3, and when the control block 5 is pulled, the movable block 3 is separated from the fixing hole 11;

[0024] It is worth mentioning that an inclined surface 211 is provided below the pressure-bearing surface 21, a support block 22 is provided at the bottom of the circuit breaker body 2, and is arranged opposite to the pressure-bearing surface 21, a first through hole 23 is provided at the support block 22, and limiting grooves 24 are provided on both sides of the first through hole 23, and a yielding through hole 25 is provided at the bottom of the first through hole 23. The inclined surface 211 guides the guide rail 1 to enter the pressure-bearing surface 21, and the first through hole 23 provides a guiding function for the control block 5. The limiting groove 24 limits the distance that the control block 5 is pulled outward and the distance that the fixed column 32 and the action part 33 extend, and the yielding through hole 25 gives way to the movable block 3 for telescopic use;

[0025] It is worth mentioning that the movable block 3 is slidably arranged in the yielding through hole 25, and through holes 31 are arranged on both sides of the movable block 3. The movable block 3 is provided with a fixing column 32 and inserted into the fixing hole 11. An acting portion 33 is arranged above the fixing column 32 and abuts against one side of the guide rail 1.

[0026] It is worth mentioning that detachable guide posts 6 are provided on both sides of the clearance through hole 25 and pass through the through hole 31. The elastic member 4 is arranged on the outer wall of the guide post 6. One end of the elastic member 4 abuts against the clearance through hole 25, and the other end abuts against the movable block 3. The guide post 6 provides a guide for the telescopic movement of the movable block 3. The elastic member 4 enables the fixed post 32 to be stably inserted in the fixed hole 11 and the action part 33 to be pressed against the guide rail 1.

[0027] It is worth mentioning that one end of the control block 5 is connected and fixed to the movable block 3, the control block 5 is slidably arranged in the first through hole 23, and limit blocks 51 are arranged on both sides of the control block 5, and the limit blocks 51 are slidably arranged in the limit groove 24. The control block 5 is provided with a pull ring 52 and protrudes from one end of the circuit breaker body 2. The movable block 3 is retracted by the pull ring 52, so that the circuit breaker body 2 is separated from the guide rail 1, and the limit block 51 is used in conjunction with the limit groove 24;

[0028] It is worth mentioning that the elastic member 4 is configured as a spring.

[0029] The use principle of the utility model is now described as follows:

[0030] Example 1

[0031] First, install the guide rail 1 on the wall or cabinet, and pull the movable block 3 inward through the pull ring 52, and similarly, the fixed column 32 and the action part 33 are also retracted, and the elastic member 4 is stored with energy, and the circuit breaker body 2 is placed on the guide rail 1, and the force applied to the pull ring 52 is released, and the elastic member 4 releases energy;

[0032] The fixing column 32 is inserted into the fixing hole 11 to form a first support and holding point, the action portion 33 abuts against one side of the guide rail 1, and the other side of the guide rail 1 is pressed against the pressure-bearing surface 21, so that a clamping force is formed between the action portion 33 and the pressure-bearing surface 21 to form a second support and holding point, and the connection and fixation between the circuit breaker body 2 and the guide rail 1 is completed;

[0033] If the fixing post 32 abuts against one side of the guide rail 1 and does not enter the fixing hole 11 , the circuit breaker body 2 may be moved so that the fixing post 32 overlaps with the fixing hole 11 and the fixing post 32 smoothly enters the fixing hole 11 .

[0034] Example 2

[0035] By pulling the movable block 3 outward through the pull ring 52, the limit block 51 leaves one end of the limit groove 24, so that the movable block 3 retracts, the fixing column 32 leaves the fixing hole 11, and the action portion 33 leaves one side of the guide rail 1 until the limit block 51 abuts against the other end of the limit groove 24. At this time, the disassembly steps of the circuit breaker body 2 and the guide rail 1 are completed.

[0036] The above design scheme can make the product have the advantages of high safety and firm fixation.

[0037] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A reliably fixed miniature circuit breaker, comprising a guide rail (1) and a circuit breaker body (2) arranged on the guide rail (1), characterized in that: A plurality of equally spaced fixing holes (11) are provided on one side of the guide rail (1); a pressure-bearing surface (21) is provided on one side of the circuit breaker body (2) and abuts against one side of the guide rail (1); a retractable movable block (3) is provided on the other side of the circuit breaker body (2); an elastic member (4) is provided on the circuit breaker body (2) and abuts against the movable block (3), so that the movable block (3) is inserted into the fixing hole (11) and the movable block (3) is pressed against the other side of the guide rail (1), so that the circuit breaker body (2) and the guide rail (1) are connected and fixed; the movable block (3) is provided with a control block (5); when the control block (5) is pulled, the movable block (3) is separated from the fixing hole (11).

2. The reliably fixed miniature circuit breaker according to claim 1 is characterized in that: An inclined surface (211) is provided below the pressure-bearing surface (21), a support block (22) is provided at the bottom of the circuit breaker body (2) and is arranged opposite to the pressure-bearing surface (21), the support block (22) is provided with a first through hole (23), limiting grooves (24) are provided on both sides of the first through hole (23), and a clearance through hole (25) is provided at the bottom of the first through hole (23).

3. The reliably fixed miniature circuit breaker according to claim 2 is characterized in that: The movable block (3) is slidably arranged in the clearance through hole (25), and through holes (31) are arranged on both sides of the movable block (3). The movable block (3) is provided with a fixing column (32) and inserted into the fixing hole (11), and an action portion (33) is arranged above the fixing column (32) and abuts against one side of the guide rail (1).

4. The reliably fixed miniature circuit breaker according to claim 3 is characterized in that: Removable guide pillars (6) are provided on both sides of the clearance through hole (25) and pass through the through hole (31). The elastic member (4) is arranged on the outer wall of the guide pillar (6). One end of the elastic member (4) abuts against the clearance through hole (25) and the other end abuts against the movable block (3).

5. The reliably fixed miniature circuit breaker according to claim 4 is characterized in that: One end of the control block (5) is connected and fixed to the movable block (3); the control block (5) is slidably arranged in the first through hole (23); limit blocks (51) are arranged on both sides of the control block (5); the limit blocks (51) are slidably arranged in the limit grooves (24); and the control block (5) is provided with a pull ring (52) which protrudes from one end of the circuit breaker body (2).

6. The reliably fixed miniature circuit breaker according to claim 3 is characterized in that: The elastic member (4) is configured as a spring.

Images