Circuit breaker wiring device

Abstract

The utility model discloses a wiring device of a circuit breaker. The wiring device comprises a main body structure; the main body structure comprises a circuit breaker main body and a fixing plate used for installing the circuit breaker main body, the circuit breaker main body comprises an upper shell and a lower shell, the upper shell is provided with a switch, an inner cavity of the lower shell is provided with a binding post, and the outer wall of the lower shell is provided with an access hole for a wire to access; a first positioning mechanism; the first positioning mechanism comprises a positioning screw which is installed on the upper shell in a threaded mode, the upper end of the positioning screw is fixedly connected with a rotary knob, and an arc-shaped insulating block is rotatably installed at the lower end of the positioning screw. The device further comprises a second positioning mechanism. The device is simple in structure and convenient to use, through the arrangement of the positioning mechanism, the phenomena of looseness and separation are not prone to occurring in the long-term use process after wire connection is completed, and normal use of circuit breaker equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker wiring, in particular to a circuit breaker wiring device. Background Art

[0002] A circuit breaker is a switch device that can close, carry and disconnect the current under normal circuit conditions and close, carry and disconnect the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. When they have serious overloads or short circuits and undervoltage faults, they can automatically cut off the circuit. Its function is equivalent to the combination of fuse switches and over-underheating relays. Moreover, it is generally not necessary to change parts after breaking the fault current. It has been widely used.

[0003] After searching, the Chinese patent application number is: CN202010494551.3, which discloses a wiring structure for a circuit breaker, and relates to the technical field of circuit breakers. The wiring structure for a circuit breaker includes: an insulating wire shell, including an insulating plug-in terminal that can be inserted into the inlet of the circuit breaker, and an installation cavity is provided inside the insulating wire shell, and the installation cavity forms a conductive port on the insulating plug-in terminal; a wire connection mechanism, including a conductive member provided below the conductive port for electrically connecting to the wire; a pressure plate mechanism, including a conductive plate and an elastic member, the conductive plate is provided at the conductive port and is spaced from the conductive member; the elastic member is clamped between the conductive member and the conductive plate, and is insulated from at least one of the two; when the conductive plate is pressed, it can move to a first position where it contacts the conductive member and conducts the wire and the circuit breaker, and after the pressure is over, it can move to a second position where it is separated from the conductive member and disconnects the connection between the wire and the circuit breaker. The above structure can prevent the staff from getting an electric shock when the circuit breaker is disassembled, and ensure the personal safety of the staff.

[0004] The above technical solution still has defects. After the wires and the circuit breaker are connected, there is a lack of positioning function. During the long-term use of the circuit breaker, the wires may become loose or even detached, which may easily cause equipment failure. Therefore, we need to propose a circuit breaker wiring device. Utility Model Content

[0005] The purpose of the utility model is to provide a circuit breaker wiring device, which has a simple structure and is easy to use. Through the setting of a positioning mechanism, the device can prevent the wires from loosening and detaching during long-term use after the wires are connected, thereby ensuring the normal use of the circuit breaker equipment and solving the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A circuit breaker wiring device, comprising:

[0008] Main structure;

[0009] The main structure includes a circuit breaker body and a fixing plate for mounting the circuit breaker body, the circuit breaker body includes an upper shell and a lower shell, the upper shell is provided with a switch, the inner cavity of the lower shell is provided with a terminal, and the outer wall of the lower shell is provided with an access hole for wire access;

[0010] a first positioning mechanism;

[0011] The first positioning mechanism comprises a positioning screw threadedly mounted on the upper shell, the upper end of the positioning screw is fixedly connected to a knob, and the lower end of the positioning screw is rotatably mounted with an arc-shaped insulating block;

[0012] A second positioning mechanism is also included.

[0013] Preferably, a fixing seat for placing the wire is provided on one side of the terminal in the inner cavity of the lower shell, the fixing seat and the insulating block are designed in corresponding arc shapes, and convex strips are provided on the arc surfaces of the fixing seat and the insulating block for anti-slip.

[0014] Preferably, the inner cavity of the lower shell is symmetrically provided with U-shaped guide frames on both sides of the fixing seat, and guide blocks are symmetrically provided on both sides of the insulating block, and two groups of guide blocks are respectively slidably installed inside the two groups of guide frames.

[0015] Preferably, the second positioning mechanism comprises a positioning box arranged at one side of the circuit breaker body, the positioning box is provided with a wire hole for the guide to pass through, and the wire hole corresponds to the access hole on the outer wall of the lower shell one by one.

[0016] Preferably, a positioning block is slidably mounted inside the positioning box, a through hole corresponding to the wire hole is formed on the positioning block, and an inner wall of the through hole is provided with anti-slip grooves.

[0017] Preferably, protrusions are provided on both sides of the upper end of the positioning block, and connecting rods are provided between the inner top and inner bottom on both sides of the positioning box. The connecting rods are slidably inserted in the protrusions, and a compression spring is sleeved on the connecting rods between the inner bottom of the positioning box and the protrusions.

[0018] Preferably, a connecting block is provided on the top of the positioning block, the connecting block is slidably plugged into the top of the positioning box, and a pressing block is provided on the upper end of the connecting block.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model installs a circuit breaker body on a fixing plate, wherein the circuit breaker body comprises an upper shell and a lower shell, a switch is arranged on the upper shell, a terminal is arranged in the lower shell, a first positioning mechanism comprising a positioning screw is arranged on the upper shell, a knob is arranged at the upper end of the positioning screw, and an insulating block is arranged at the lower end of the positioning screw. The device has a simple structure and is easy to use. Through the arrangement of the positioning mechanism, the loosening and separation phenomena are not likely to occur during long-term use after the wire connection is completed, thereby ensuring the normal use of the circuit breaker equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the main body of the circuit breaker of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the first positioning mechanism of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the guide frame of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the second positioning mechanism of the utility model.

[0026] In the figure: 1. fixing plate; 2. lower shell; 3. upper shell; 4. switch; 5. terminal; 6. positioning box; 7. wire hole; 8. positioning block; 9. through hole; 10. anti-slip groove; 11. bump; 12. connecting rod; 13. compression spring; 14. connecting block; 15. pressing block; 16. positioning screw; 17. knob; 18. insulating block; 19. guide block; 20. guide frame. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0028] See also Figure 1-4 , the utility model provides a technical solution:

[0029] A circuit breaker wiring device, comprising:

[0030] Main structure; the main structure includes a circuit breaker body and a fixing plate 1 for installing the circuit breaker body. The circuit breaker body includes an upper shell 3 and a lower shell 2. A switch 4 is provided on the upper shell 3. A terminal 5 is provided in the inner cavity of the lower shell 2. An access hole for wire access is opened on the outer wall of the lower shell 2.

[0031] The first positioning mechanism; the first positioning mechanism includes a positioning screw 16 threadedly installed on the upper shell 3. The upper end of the positioning screw 16 is fixedly connected with a knob 17. The lower end of the positioning screw 16 is rotatably installed with an arc-shaped insulating block 18.

[0032] On one side of the terminal 5 in the inner cavity of the lower shell 2, there is a fixing seat for placing the wire. The fixing seat and the insulating block 18 are designed in a corresponding arc shape, and convex strips are provided on the arc surfaces of the fixing seat and the insulating block 18 for anti-slip. On both sides of the fixing seat in the inner cavity of the lower shell 2, there are symmetrically arranged U-shaped guide frames 20. On both sides of the insulating block 18, there are symmetrically arranged guide blocks 19. The two groups of guide blocks 19 are respectively slidably installed inside the two groups of guide frames 20.

[0033] During actual use, the wire is connected to the inside of the lower shell 2 through the access hole and connected to the terminal 5. After the connection is completed, the knob 17 is rotated. Since the insulating block 18 is rotatably installed at the lower end of the positioning screw 16, the insulating block 18 and the fixing seat on one side of the terminal 5 are arranged in a corresponding arc shape, and the guide blocks 19 on both sides of the insulating block 18 are slidably installed in the guide frames 20 on one side of the fixing seat, so that the insulating block 18 can be lowered to firmly press against the fixing seat, thus playing a role in preventing detachment.

[0034] Furthermore, please refer to Figure 1 and Figure 5 :

[0035] It also includes a second positioning mechanism.

[0036] The second positioning mechanism includes a positioning box 6 provided on one side of the circuit breaker body. A wire hole 7 for guiding the wire is opened on the positioning box 6. The wire hole 7 corresponds to the access hole on the outer wall of the lower shell 2 one by one. A positioning block 8 is slidably installed inside the positioning box 6. A through hole 9 corresponding to the wire hole 7 is opened on the positioning block 8. Anti-slip threads 10 are provided on the inner wall of the through hole 9. On both sides of the upper end of the positioning block 8, there are convex blocks 11. A connecting rod 12 is provided between the inner top and inner bottom on both sides of the positioning box 6. The connecting rod 12 is slidably inserted into the convex blocks 11. A compression spring 13 is sleeved on the connecting rod 12 between the inner bottom of the positioning box 6 and the convex blocks 11. A connecting block 14 is provided on the top of the positioning block 8. The connecting block 14 is slidably inserted into the top of the positioning box 6. A pressing block 15 is provided at the upper end of the connecting block 14.

[0037] By providing a second positioning mechanism including a positioning box 6 on the fixed plate 1, a positioning block 8 is slidably installed inside the positioning box 6, a through hole 9 corresponding to the wire hole 7 on the positioning box 6 is provided on the positioning block 8, a connecting rod 12 with a compression spring 13 is provided in the positioning box 6, the connecting rod 12 is slidably inserted into the protrusion 11 on the positioning block 8, and a connecting block 14 with a pressing block 15 is provided on the positioning block 8. In actual use, the pressing block 15 is pressed downward when wiring, so that the through hole 9 on the positioning block 8 corresponds to the wire hole 7, and the pressing block 15 is released after the guide passes through the wire hole 7 and the through hole 9. Under the action of the compression spring 13, the positioning block 8 rebounds inside the positioning box 6, thereby being able to exert an upward clamping force on the wire, so that the guide will not easily become loose or offset at the positioning box 6. When replacement or maintenance is required, the wire can be easily pulled out by pressing the pressing block 15 again.

[0038] The anti-slip grooves 10 are arranged on the inner wall of the through hole 9, which can play a good anti-slip role and further improve the fixing ability of the wire.

[0039] In general, the device has a simple structure and is easy to use. Through the setting of the dual positioning mechanism, it can prevent the wires from loosening or coming off during long-term use after connection, thereby ensuring the normal use of the circuit breaker equipment.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A circuit breaker wiring device, characterized in that: Comprising: Main body structure; The main body structure includes a circuit breaker main body and a fixing plate (1) for mounting the circuit breaker main body. The circuit breaker main body includes an upper shell (3) and a lower shell (2). A switch (4) is provided on the upper shell (3). A terminal (5) is provided in the inner cavity of the lower shell (2). An access hole for wire access is provided on the outer wall of the lower shell (2). First positioning mechanism; The first positioning mechanism includes a positioning screw (16) threadedly mounted on the upper shell (3). The upper end of the positioning screw (16) is fixedly connected with a knob (17). The lower end of the positioning screw (16) is rotatably mounted with an arc-shaped insulating block (18). It further includes a second positioning mechanism.

2. A circuit breaker wiring device according to claim 1, characterized in that: A fixing seat for placing wires is provided on one side of the terminal (5) in the inner cavity of the lower shell (2). The fixing seat and the insulating block (18) are designed in a corresponding arc shape, and convex strips for anti-slip are provided on the arc surfaces of the fixing seat and the insulating block (18).

3. A circuit breaker wiring device according to claim 2, characterized in that: On both sides of the fixing seat in the inner cavity of the lower shell (2), a U-shaped guide frame (20) is symmetrically provided. On both sides of the insulating block (18), guide blocks (19) are symmetrically provided. The two groups of guide blocks (19) are respectively slidably mounted inside the two groups of guide frames (20).

4. A circuit breaker wiring device according to claim 1, characterized in that: The second positioning mechanism includes a positioning box (6) provided on one side of the circuit breaker main body. A wire hole (7) for guiding is provided on the positioning box (6). The wire hole (7) corresponds to the access hole on the outer wall of the lower shell (2) one by one.

5. A circuit breaker wiring device according to claim 4, characterized in that: A positioning block (8) is slidably mounted inside the positioning box (6). A through hole (9) corresponding to the wire hole (7) is provided on the positioning block (8). Anti-slip threads (10) are provided on the inner wall of the through hole (9).

6. A circuit breaker wiring device according to claim 5, characterized in that: On both sides of the upper end of the positioning block (8), convex blocks (11) are provided. A connecting rod (12) is provided between the inner top and inner bottom on both sides of the positioning box (6). The connecting rod (12) is slidably inserted into the convex blocks (11). A compression spring (13) is sleeved on the connecting rod (12) between the inner bottom of the positioning box (6) and the convex blocks (11).

7. A circuit breaker wiring device according to claim 6, characterized in that: A connecting block (14) is provided on the top of the positioning block (8). The connecting block (14) is slidably inserted into the top of the positioning box (6). A pressing block (15) is provided at the upper end of the connecting block (14).

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