Auxiliary contact device of molded case circuit breaker

Abstract

The utility model relates to the technical field of auxiliary contacts of molded case circuit breakers, and discloses an auxiliary contact device of a molded case circuit breaker, which comprises a shell, the outer wall of the shell is fixedly connected with a cylinder, the output end of the cylinder is fixedly connected with a moving block, and the outer wall of the moving block is rotatably connected with a pull plate. A fixing plate is fixedly connected to the inner wall of the shell, a first linkage plate is rotationally connected to the outer wall of the fixing plate, the outer wall of the first linkage plate is rotationally connected to the inner wall of a pulling plate, a second linkage plate is rotationally connected to the inner wall of the pulling plate, and a limiting block is rotationally connected to the outer wall of the second linkage plate. According to the utility model, the output end of the air cylinder drives the moving block and the second linkage plate to rotate on the inner wall of the limiting block and the first linkage plate to rotate on the outer wall of the fixed plate so as to drive the sliding plate to slide on the outer wall of the first sliding rail, and then the contact body can be clamped and fixed through the first clamping block and the second clamping block; the effect of improving the stability of the contact body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary contacts of molded case circuit breakers, in particular to an auxiliary contact device of a molded case circuit breaker. Background Art

[0002] The auxiliary contact device of the molded case circuit breaker is a device used in electrical circuit breakers. Its function is to enhance the function of the circuit breaker, monitor the status of the circuit breaker and provide auxiliary means of operation and control. The auxiliary contact has a fault detection function and can monitor the abnormal condition of the circuit breaker contacts. When a fault occurs, the system can issue an alarm to help discover and solve the problem in time.

[0003] However, most auxiliary contacts of molded case circuit breakers currently cannot meet the requirements of quick fixation of contacts, which makes them unstable during operation and easily causes damage, thus creating danger. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an auxiliary contact device for a molded case circuit breaker, aiming to improve the problem that the contacts cannot be fixed, are unstable during operation, are easily damaged, and thus cause danger.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A molded case circuit breaker auxiliary contact device comprises a shell, the outer wall of the shell is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a moving block, the outer wall of the moving block is rotatably connected to a pull plate, the inner wall of the shell is fixedly connected to a fixed plate, the outer wall of the fixed plate is rotatably connected to a first linkage plate, the outer wall of the first linkage plate is rotatably connected to the inner wall of the pull plate, the inner wall of the pull plate is rotatably connected to a second linkage plate, the outer wall of the second linkage plate is rotatably connected to a limiting block, the outer wall of the limiting block is fixedly connected to a sliding plate, the outer wall of the sliding plate is fixedly connected to a first clamping block, the inner wall of the shell is fixedly connected to a first slide rail, the inner wall of the shell is fixedly connected to a second clamping block, the inner wall of the sliding plate is slidably connected to the outer wall of the first slide rail, and the inner wall of the shell is provided with a circuit component.

[0007] Preferably, the circuit assembly comprises a contact body, the lower surface of the contact body is arranged on the inner wall of the shell, the upper surface of the contact body is rotatably connected to a switch, and a circuit groove is opened inside the shell.

[0008] Preferably, a U-shaped support block is fixedly connected to the upper surface of the shell, and a fixing column is fixedly connected inside the U-shaped support block.

[0009] Preferably, the outer wall of the fixed column is rotatably connected to a rotating plate, and the outer wall of the rotating plate is fixedly connected to a wrench.

[0010] Preferably, a linkage column is rotatably connected inside the rotating plate, and a closing plate is fixedly connected to an outer wall of the linkage column.

[0011] Preferably, a rotating column is rotatably connected inside the combination plate, and a positioning block is fixedly connected to the lower surface of the rotating column.

[0012] Preferably, a cover plate is fixedly connected to the lower surface of the positioning block.

[0013] Preferably, the outer wall of the cover plate is slidably connected to a second slide rail, and the lower surface of the second slide rail is fixedly connected to the upper surface of the shell.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the output end of the cylinder drives the moving block, and the moving block can drive the pull plate to rotate on its outer wall, and the pull plate then pulls the second linkage plate to rotate on the inner wall of the limit block, and at the same time, the pull plate also pulls the first linkage plate to rotate on the outer wall of the fixed plate, thereby driving the sliding plate to slide on the outer wall of the first slide rail, and then the contact body is fixed by the first clamping block and the second clamping block, so that the contact body can be clamped and fixed, thereby achieving the effect of improving the stability of the contact body.

[0016] 2. In the utility model, the wrench is pulled upward, and the wrench drives the rotating plate, and the rotating plate rotates on the inner wall of the U-shaped support block through the fixed column, and then the rotating plate drives the push-pull plate to move through the linkage column, and then the push-pull plate drives the positioning block through the rotating column, and the positioning block drives the cover plate to slide on the inner wall of the second slide rail, and then the outer shell is opened, so that the contact body can be quickly installed and repaired.

[0017] 3. In the utility model, the wrench drives the rotating plate, and the rotating plate rotates on the inner wall of the U-shaped support block through the fixed column. The rotating plate can drive the push-pull plate to move through the linkage column. Then the push-pull plate can drive the positioning block through the rotating column, and the positioning block drives the cover plate to slide on the inner wall of the second slide rail. The contact body can be protected by the shell, thereby adapting to different industrial environments and climatic conditions and ensuring reliable operation under various harsh conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of an auxiliary contact device for a molded case circuit breaker proposed by the utility model;

[0019] Figure 2 A schematic diagram of a sliding block of an auxiliary contact device of a molded case circuit breaker proposed by the utility model;

[0020] Figure 3The utility model is a schematic diagram of a cover plate of an auxiliary contact device of a molded case circuit breaker.

[0021] Legend:

[0022] 1. Housing; 2. Cylinder; 3. Moving block; 4. Pull plate; 5. Fixed plate; 6. First linkage plate; 7. Second linkage plate; 8. Limit block; 9. Sliding plate; 10. First clamping block; 11. First slide rail; 12. Second clamping block; 13. Contact body; 14. Switch; 15. Line groove; 16. U-shaped support block; 17. Fixed column; 18. Rotating plate; 19. Wrench; 20. Linkage column; 21. Closing plate; 22. Rotating column; 23. Second slide rail; 24. Cover plate; 25. Positioning block. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-2 The utility model provides an embodiment: an auxiliary contact device of a molded case circuit breaker, comprising a shell 1, an outer wall of the shell 1 is fixedly connected to a cylinder 2, an output end of the cylinder 2 is fixedly connected to a moving block 3, an outer wall of the moving block 3 is rotatably connected to a pull plate 4, an inner wall of the shell 1 is fixedly connected to a fixed plate 5, an outer wall of the fixed plate 5 is rotatably connected to a first linkage plate 6, an outer wall of the first linkage plate 6 is rotatably connected to the inner wall of the pull plate 4, an inner wall of the pull plate 4 is rotatably connected to a second linkage plate 7, and an outer wall of the second linkage plate 7 is rotatably connected to a limiting block 8, The outer wall of the limit block 8 is fixedly connected with a sliding plate 9, the outer wall of the sliding plate 9 is fixedly connected with a first clamping block 10, the inner wall of the housing 1 is fixedly connected with a first slide rail 11, the inner wall of the housing 1 is fixedly connected with a second clamping block 12, the inner part of the sliding plate 9 is slidably connected to the outer wall of the first slide rail 11, and the inner wall of the housing 1 is provided with a circuit assembly; the circuit assembly includes a contact body 13, the lower surface of the contact body 13 is provided on the inner wall of the housing 1, the upper surface of the contact body 13 is rotatably connected with a switch 14, and a line groove 15 is provided inside the housing 1;

[0025] Specifically, the shell 1 has a fixing effect on the cylinder 2. When the cylinder 2 is turned on, the output end of the cylinder 2 drives the moving block 3 to move, and the moving block 3 drives the pull plate 4 to rotate on its outer wall. The pull plate 4 then pulls the second linkage plate 7 to rotate on the inner wall of the limit block 8. At the same time, the pull plate 4 also pulls the first linkage plate 6 to rotate on the outer wall of the fixed plate 5, thereby driving the sliding plate 9 to slide on the outer wall of the first slide rail 11, and then the contact body 13 is fixed by the first clamping block 10 fixed by the sliding plate 9 and the second clamping block 12 on the inner wall of the shell 1, and the shell 1 has a supporting effect on the contact body 13. When the switch 14 is set, the line can be sorted through the line groove 15.

[0026] Reference Figure 1-3 The upper surface of the housing 1 is fixedly connected with a U-shaped support block 16, and the interior of the U-shaped support block 16 is fixedly connected with a fixed column 17; the outer wall of the fixed column 17 is rotatably connected with a rotating plate 18, and the outer wall of the rotating plate 18 is fixedly connected with a wrench 19; the interior of the rotating plate 18 is rotatably connected with a linkage column 20, and the outer wall of the linkage column 20 is fixedly connected with a closing plate 21; the interior of the closing plate 21 is rotatably connected with a rotating column 22, and the lower surface of the rotating column 22 is fixedly connected with a positioning block 25; the lower surface of the positioning block 25 is fixedly connected with a cover plate 24; the outer wall of the cover plate 24 is slidably connected with a second slide rail 23, and the lower surface of the second slide rail 23 is fixedly connected to the upper surface of the housing 1;

[0027] Specifically, the shell 1 has a fixed supporting function for the U-shaped support block 16, the U-shaped support block 16 can determine the position of the fixed column 17, the rotating plate 18 can rotate on the outer wall of the fixed column 17, the rotating plate 18 has a fixed supporting function for the wrench 19, the linkage column 20 can rotate inside the rotating plate 18, and the closing plate 21 can fix the position of the linkage column 20, the closing plate 21 can rotate on the outer wall of the rotating column 22, and the positioning block 25 can fix the position of the rotating column 22, the cover plate 24 has a fixed supporting function for the positioning block 25, and the positioning block 25 can drive the cover plate 24 when it moves, the cover plate 24 can slide on the inner wall of the second slide rail 23, and the shell 1 has a fixed supporting function for the second slide rail 23.

[0028] Working principle: When this device is needed, pull the wrench 19 upward, the wrench 19 can drive the rotating plate 18, the rotating plate 18 rotates on the inner wall of the U-shaped support block 16 through the fixed column 17, and then the rotating plate 18 can drive the closing plate 21 to move through the linkage column 20, and then the closing plate 21 can drive the positioning block 25 through the rotating column 22, and the positioning block 25 can drive the cover plate 24 to slide on the inner wall of the second slide rail 23, and the shell 1 can be opened, and then the contact body 13 is placed on the inner wall of the shell 1, and then the state of the switch 14 is set, and then the line is sorted through the line groove 15, and then the cylinder 2 is turned on, and the output end of the cylinder 2 can drive the moving block 3 to move, and the moving block 3 can drive The pull plate 4 rotates on its outer wall, and then pulls the second linkage plate 7 to rotate on the inner wall of the limit block 8. At the same time, the pull plate 4 also pulls the first linkage plate 6 to rotate on the outer wall of the fixed plate 5, thereby driving the sliding plate 9 to slide on the outer wall of the first slide rail 11, and then the contact body 13 can be fixed by the first clamping block 10 fixed by the sliding plate 9 and the second clamping block 12 on the inner wall of the shell 1, that is, the device can not only clamp and fix the contact body 13 to improve the stability of the contact body 13, but also achieve the effect of rapid installation and maintenance of the contact body 13, and at the same time can adapt to different industrial environments and climatic conditions to ensure reliable operation under various harsh conditions.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A molded case circuit breaker auxiliary contact device, comprising a housing (1), characterized in that: The outer wall of the housing (1) is fixedly connected to a cylinder (2), the output end of the cylinder (2) is fixedly connected to a moving block (3), the outer wall of the moving block (3) is rotatably connected to a pulling plate (4), the inner wall of the housing (1) is fixedly connected to a fixing plate (5), the outer wall of the fixing plate (5) is rotatably connected to a first linkage plate (6), the outer wall of the first linkage plate (6) is rotatably connected to the inner wall of the pulling plate (4), the inner wall of the pulling plate (4) is rotatably connected to a second linkage plate (7), The outer wall of the second linkage plate (7) is rotatably connected to a limit block (8), the outer wall of the limit block (8) is fixedly connected to a sliding plate (9), the outer wall of the sliding plate (9) is fixedly connected to a first clamping block (10), the inner wall of the housing (1) is fixedly connected to a first slide rail (11), the inner wall of the housing (1) is fixedly connected to a second clamping block (12), the interior of the sliding plate (9) is slidably connected to the outer wall of the first slide rail (11), and the inner wall of the housing (1) is provided with a circuit component.

2. The auxiliary contact device of a molded case circuit breaker according to claim 1, characterized in that: The circuit assembly comprises a contact body (13), the lower surface of the contact body (13) is arranged on the inner wall of the housing (1), the upper surface of the contact body (13) is rotatably connected to a switch (14), and a circuit groove (15) is provided inside the housing (1).

3. The auxiliary contact device of a molded case circuit breaker according to claim 2, characterized in that: A U-shaped support block (16) is fixedly connected to the upper surface of the housing (1), and a fixing column (17) is fixedly connected inside the U-shaped support block (16).

4. The auxiliary contact device of a molded case circuit breaker according to claim 3, characterized in that: The outer wall of the fixed column (17) is rotatably connected to a rotating plate (18), and the outer wall of the rotating plate (18) is fixedly connected to a wrench (19).

5. The auxiliary contact device of a molded case circuit breaker according to claim 4, characterized in that: The interior of the rotating plate (18) is rotatably connected to a linkage column (20), and the outer wall of the linkage column (20) is fixedly connected to a closing plate (21).

6. The auxiliary contact device of a molded case circuit breaker according to claim 5, characterized in that: The interior of the combination plate (21) is rotatably connected to a rotating column (22), and the lower surface of the rotating column (22) is fixedly connected to a positioning block (25).

7. The auxiliary contact device of a molded case circuit breaker according to claim 6, characterized in that: The lower surface of the positioning block (25) is fixedly connected with a cover plate (24).

8. The auxiliary contact device of a molded case circuit breaker according to claim 7, characterized in that: The outer wall of the cover plate (24) is slidably connected to a second slide rail (23), and the lower surface of the second slide rail (23) is fixedly connected to the upper surface of the housing (1).

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