Special anti-closing lock for circuit breaker

Abstract

The utility model relates to the field of anti-closing locks for circuit breakers, in particular to a special anti-closing lock for a circuit breaker. Comprising a housing which is provided with a mounting cavity; the sliding driving structure is arranged in the mounting cavity in a left-right sliding mode, an inclined sliding groove is formed in the sliding driving structure, and a ring part used for hanging a lock is arranged on the sliding driving structure; the lock rod is provided with a limiting part, the limiting part slides in the sliding groove, and the lock rod moves up and down under the sliding action of the sliding driving structure; a locking part is arranged below the lock rod and is used for extending out of the shell; according to the utility model, the switch-on button is locked through a simple structure, switch-on is prevented, the situation that the structure is separated and stuck is avoided, and the replacement cost of the lock is low.

Description

Technical Field

[0001] The utility model relates to the field of a circuit breaker closing prevention lock, in particular to a circuit breaker special anti-closing lock. Background Art

[0002] A circuit breaker is a mechanical switching device that can connect, carry and disconnect current under normal circuit conditions, and can also connect, carry for a certain time and disconnect current under specified abnormal circuit conditions.

[0003] When abnormal power consumption occurs in the circuit breaker, the circuit will be disconnected by opening the switch. Before finding the accident point and repairing it, it is necessary to prevent the circuit breaker from closing. Usually, the circuit breaker's special anti-closing lock is required. Locking the circuit breaker can prevent unauthorized or unpermitted personnel from closing the circuit breaker by mistake, thereby reducing accidents and damages caused by misoperation. When performing equipment maintenance, inspection or repair, by locking the circuit breaker, it can be ensured that the maintenance personnel will not accidentally close the circuit during operation, thereby improving the safety of maintenance work.

[0004] The circuit breaker anti-closing lock needs to run smoothly, have a simple structure, and not be easily stuck.

[0005] The existing old closing lock has a matching key. When the key is lost, the lock will be invalid, which is costly.

[0006] Therefore, there is an urgent need to provide an improved technical solution to solve the above technical problems. Utility Model Content

[0007] The purpose of the utility model is to provide a circuit breaker special anti-closing lock with a simple structure in view of the above-mentioned technical problems.

[0008] In view of this, the utility model provides a circuit breaker special anti-closing lock, which is characterized by comprising:

[0009] A housing, wherein the housing is provided with a mounting cavity;

[0010] A sliding drive structure, the sliding drive structure is slidably arranged in the installation cavity, and an inclined sliding groove is provided on the sliding drive structure, and a ring portion for padlock is provided on the sliding drive structure;

[0011] A locking rod, on which a limiting portion is provided, which slides in the sliding groove, and the locking rod moves up and down under the sliding action of the sliding drive structure;

[0012] A locking portion is provided below the locking rod, and the locking portion is used to extend out of the housing.

[0013] Furthermore, it also includes:

[0014] Slide grooves are arranged on both sides of the inner wall of the shell;

[0015] The sliding rods are arranged on both sides of the sliding drive structure and in the sliding grooves.

[0016] Furthermore, the sliding drive structure is divided into a first structural part and a second structural part. The first structural part and the second structural part are combined to form a hollow sliding cavity. Inclined sliding grooves are provided on both sides of the sliding cavity, and limiting parts are provided on both sides of the locking rod.

[0017] Furthermore, the first structural part and the second structural part are fixed by two or more snap connections.

[0018] Furthermore, it also includes:

[0019] A positioning block, which is arranged on the lower end surface of the housing;

[0020] The positioning hole is arranged on the side surface of the shell and is in the same plane as the lower end surface of the shell.

[0021] Furthermore, the shell includes a first shell and a second shell, the second shell constitutes an end face of the shell, and a plurality of supporting parts for supporting the second shell are provided on the inner wall of the first shell; a plurality of fixing holes are provided on the side wall of the first shell, and a plurality of fixing parts for being installed in the fixing holes are provided on the edge of the second shell.

[0022] Furthermore, there is a gap between the sliding drive structure and the housing.

[0023] The beneficial effects of the utility model are:

[0024] 1. The utility model locks the closing button through a simple structure to prevent closing, the structure will not be separated and stuck, and the replacement cost of the lock is low.

[0025] 2. The utility model provides sliding grooves and limit parts on both sides to achieve structural stability during sliding, and will not cause guide deviation due to uneven force, making sliding smoother and less prone to jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the installation position structure of the sliding drive structure and the housing of the utility model;

[0028] Figure 3 The three-dimensional structural diagram of the sliding drive structure of the utility model is shown in FIG.

[0029] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the utility model;

[0030] Figure 5 This is a schematic diagram of the position structure of the positioning block of the utility model.

[0031] The symbols in the figure are:

[0032] 1. Installation cavity; 2. Sliding drive structure; 3. Shell; 4. Sliding groove; 5. Ring; 6. Lock rod; 7. Limiting part; 8. Locking part; 9. Sliding groove; 10. Sliding rod; 11. First structural part; 12. Second structural part; 13. Sliding cavity; 14. Buckle; 15. Positioning block; 16. Positioning hole; 17. First shell; 18. Second shell; 19. Support part; 20. Fixing hole; 21. Fixing part; 22. Wear-resistant part; 23. Installation part. Specific embodiments

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0034] Embodiment 1:

[0035] This embodiment provides a circuit breaker dedicated anti-closing lock, which is characterized by comprising:

[0036] The housing 3 is provided with a mounting cavity 1;

[0037] A sliding drive structure 2, the sliding drive structure 2 is slidably disposed in the installation cavity 1, and an inclined sliding groove 4 is provided on the sliding drive structure 2, and a ring portion 5 for a padlock is provided on the sliding drive structure 2;

[0038] A locking rod 6, on which a limiting portion 7 is provided, the limiting portion 7 slides in the sliding groove 4, and the locking rod 6 moves up and down under the sliding action of the sliding drive structure 2;

[0039] A locking portion 8 is provided below the locking rod 6 , and the locking portion 8 is used to extend out of the housing 3 .

[0040] The front, back, left, and right positions of the structure described in this embodiment are Figure 1The direction is consistent with that in the figure, the shell 3 is provided with a mounting cavity 1, and an opening is provided on the left side of the shell 3. For the convenience of installation, an opening can also be provided on the right side of the shell 3. The sliding drive structure 2 is a square structure with a clearance fit with the mounting cavity 1. A sliding groove 4 is provided from the upper left to the lower right on the front surface or the rear surface of the sliding drive structure 2. A ring portion 5 for padlocking is installed on the left side of the sliding drive structure 2. When the sliding drive structure 2 slides to the rightmost end, the ring portion 5 slides into the shell 3. When it slides to the leftmost end, the ring portion 5 is outside the shell 3. By padlocking the ring portion 5, the limit is achieved. There is also a padlock in the shell 3 that can be used. A locking rod 6 moves up and down, and a limiting portion 7 which is also inclined is provided on the side of the locking rod 6, or two columns are used to form a limit, and an opening is provided below the shell 3, and a locking portion 8 is provided below the locking rod 6. The locking portion 8 is arranged in the opening below the shell 3. When the sliding drive structure 2 is pushed to the right through the ring portion 5, the locking rod 6 moves upward in the shell 3, and the locking portion 8 is retracted into the shell 3. When the sliding drive structure 2 is pulled to the left through the ring portion 5, the locking rod 6 moves downward in the shell 3, and the locking portion 8 extends out, abutting against the back of the closing button of the circuit breaker energy storage mechanism, thereby preventing the circuit breaker from being closed and preventing electrical accidents.

[0041] The closing button is locked by a simple structure to prevent closing, and the structure will not be separated and stuck. When the key is lost, only the utility model needs to be replaced without replacing the entire circuit breaker.

[0042] Embodiment 2:

[0043] This embodiment provides a circuit breaker dedicated anti-closing lock, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0044] Also includes:

[0045] Slide grooves 9 are arranged on both sides of the inner wall of the housing 3;

[0046] The sliding rod 10 is arranged on both sides of the sliding drive structure 2 and is arranged in the sliding groove 9 .

[0047] The slide grooves 9 are arranged on both sides of the front and rear inner walls of the shell 3, and two parallel slide grooves 9 are arranged on one inner wall. There are four slide grooves 9 in total. Sliding rods 10 are also arranged on the front and rear sides of the sliding drive structure 2. The sliding rods 10 can be long strips or can be composed of two cylinders. There is one or a group of sliding rods 10 in each slide groove 9, so that the sliding drive structure 2 can slide on the guide of the slide groove 9, and the driving structure is more stable. The sliding rods 10 are arranged to be composed of two cylinders, which can reduce the contact area, thereby reducing the resistance caused by friction and making the sliding smoother.

[0048] The sliding drive structure 2 is divided into a first structural part 11 and a second structural part 12. The first structural part 11 and the second structural part 12 are combined to form a hollow sliding cavity 13. Inclined sliding grooves 4 are provided on both sides of the sliding cavity 13, and limiting parts 7 arranged in the sliding grooves 4 are provided on both sides of the locking rod 6.

[0049] The sliding drive structure 2 is divided into two parts, namely a first structural part 11 and a second structural part 12. The first structural part 11 and the second structural part 12 are combined to form a hollow sliding cavity 13. The locking rod 6 slides in the sliding cavity 13. Inclined sliding grooves 4 are provided on both sides of the sliding cavity 13. Limiting parts 7 are provided on both sides of the locking rod 6. The limiting parts 7 are slidably set in the sliding grooves 4. By providing the sliding grooves 4 and the limiting parts 7 on both sides, the stability of the structure during sliding is achieved, and the guide deviation caused by uneven force will not occur, making the sliding smoother and less prone to jamming.

[0050] Embodiment 3:

[0051] This embodiment provides a circuit breaker dedicated anti-closing lock, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] The first structure portion 11 and the second structure portion 12 are connected and fixed via two or more buckles 14 .

[0053] The second structural part 12 constitutes an end face of the sliding drive structure 2. A right-angle bent buckle 14 is provided on each of the left and right sides of the first structural part 11. The buckle 14 can be buckled on the second structural part 12 to achieve fixation, and multiple buckles 14 can be provided to increase stability. By setting it as a detachable installation structure, the locking rod 6 is easier to install.

[0054] Also includes:

[0055] A positioning block 15, which is arranged on the lower end surface of the housing 3;

[0056] The positioning hole 16 is arranged on the side surface of the housing 3 and is in the same plane as the lower end surface of the housing 3 .

[0057] The positioning block 15 is a square structure. An opening of the same shape as that for installing the positioning block 15 is provided on the energy storage mechanism. The positioning block 15 is inserted into the opening to achieve one-point fixation. A protruding sheet structure is provided on the side of the housing 3. The lower end surface of the sheet structure is in the same plane as the lower end surface of the housing 3. A positioning hole 16 is provided on the sheet structure. The positioning hole 16 is fixed to the upper end surface of the energy storage mechanism through screws and the positioning hole 16 to achieve the installation of the circuit breaker special anti-closing lock.

[0058] The housing 3 includes a first shell 17 and a second shell 18. The second shell 18 constitutes an end surface of the housing 3, and a plurality of supporting portions 19 for supporting the second shell 18 are provided on the inner wall of the first shell 17; a plurality of fixing holes 20 are provided on the side wall of the first shell 17, and a plurality of fixing portions 21 for being installed in the fixing holes 20 are provided on the edge of the second shell 18.

[0059] The shell 3 is provided with two parts, the second shell 18 constitutes the front end face of the shell 3, and a plurality of supporting parts 19 for supporting the second shell 18 are provided on the inner wall of the first shell 17; a plurality of fixing holes 20 are provided on the side wall of the first shell 17, and a plurality of fixing parts 21 for being installed in the fixing holes 20 are provided on the edge of the second shell 18; during installation, the first shell 17 can be slightly expanded, and the second shell 18 is installed into the first shell 17, and the end face of the second shell 18 is in contact with the supporting part 19 to achieve support, and is fixed in the fixing hole 20 by the fixing part 21 to achieve fixation, with a simple structure and convenient disassembly.

[0060] There is a gap between the sliding drive structure 2 and the housing 3 .

[0061] There is a gap between the sliding drive structure 2 and the housing 3 to prevent the sliding drive structure 2 from contacting the inner wall of the housing 3, thereby reducing friction and thus reducing resistance, making the left and right sliding of the sliding drive structure 2 smoother.

[0062] The lock rod 6 is provided with a plurality of wear-resistant portions 22 , and the wear-resistant portions 22 are arranged between the lock rod 6 and the sliding drive structure 2 .

[0063] By providing a plurality of wear-resistant portions 22 , the contact area between the locking rod 6 and the sliding drive structure 2 can be reduced, thereby reducing friction, reducing sliding resistance, and reducing wear of the locking rod 6 .

[0064] The second housing 18 is provided with a plurality of mounting portions 23 that abut against the sliding drive structure 2 . The mounting portions 23 can limit the sliding drive structure 2 , and can reduce the contact area between the sliding drive structure 2 and the second housing 18 , thereby reducing friction resistance.

[0065] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which belong to the protection scope of the present application.

Claims

1. A circuit breaker special anti-closing lock, characterized in that: include: A housing (3), wherein the housing (3) is provided with a mounting cavity (1); A sliding drive structure (2), the sliding drive structure (2) is slidably arranged in the installation cavity (1) to the left and right, and an inclined sliding groove (4) is provided on the sliding drive structure (2), and a ring portion (5) for padlock is provided on the sliding drive structure (2); A locking rod (6), wherein a limiting portion (7) is provided on the locking rod (6), wherein the limiting portion (7) slides in the sliding groove (4), and the locking rod (6) moves up and down under the sliding action of the sliding drive structure (2); A locking portion (8) is provided below the locking rod (6), and the locking portion (8) is used to extend out of the housing (3).

2. A circuit breaker special anti-closing lock according to claim 1, characterized in that: Also includes: A slide groove (9), the slide groove (9) is arranged on both sides of the inner wall of the shell (3); A sliding rod (10) is arranged on both sides of the sliding drive structure (2) and is arranged in the sliding groove (9).

3. A circuit breaker special anti-closing lock according to claim 1, characterized in that: The sliding drive structure (2) is divided into a first structural part (11) and a second structural part (12). The first structural part (11) and the second structural part (12) are combined to form a hollow sliding cavity (13). Inclined sliding grooves (4) are provided on both sides of the sliding cavity (13). Limiting parts (7) arranged in the sliding grooves (4) are provided on both sides of the locking rod (6).

4. A circuit breaker special anti-closing lock according to claim 3, characterized in that: The first structural part (11) and the second structural part (12) are connected and fixed by two or more buckles (14).

5. A circuit breaker special anti-closing lock according to claim 1, characterized in that: Also includes: A positioning block (15), the positioning block (15) being arranged on the lower end surface of the housing (3); A positioning hole (16) is arranged on the side of the housing (3) and is in the same plane as the lower end surface of the housing (3).

6. A circuit breaker special anti-closing lock according to claim 1, characterized in that: The housing (3) comprises a first housing (17) and a second housing (18), the second housing (18) constituting an end surface of the housing (3), and a plurality of supporting parts (19) for supporting the second housing (18) are provided on the inner wall of the first housing (17); a plurality of fixing holes (20) are provided on the side wall of the first housing (17), and a plurality of fixing parts (21) for mounting in the fixing holes (20) are provided on the edge of the second housing (18).

7. A circuit breaker special anti-closing lock according to claim 1, characterized in that: There is a gap between the sliding drive structure (2) and the housing (3).

8. A circuit breaker special anti-closing lock according to claim 1, characterized in that: The locking rod (6) is provided with a plurality of wear-resistant parts (22), and the wear-resistant parts (22) are arranged between the locking rod (6) and the sliding drive structure (2).

Images