Universal circuit breaker safety operation mechanism

Abstract

A universal circuit breaker safety operation mechanism comprises a universal circuit breaker and a main shaft, the main shaft is arranged in the universal circuit breaker, the outer wall of the main shaft is fixedly connected with an operation self-locking body, a connecting rod is arranged below the operation self-locking body, a protective cover is arranged in front of the universal circuit breaker, and the main shaft is fixedly connected with the main shaft. A clamping mechanism is arranged in the protective cover, a first through hole is formed in the operation self-locking body, and a connecting mechanism is arranged in the first through hole. The threaded rod drives the threaded block to slide; the threaded block drives the pin rod to move; the pin rod drives the pin rod to rotate through a sliding groove formed in the supporting rod, so that the end of the supporting rod retracts into the cylinder, the cylinder penetrates through a first through hole and a second through hole, a circular ring is attached to the outer wall of the operation self-locking body, and the rotating wheel is reversely rotated; the supporting rod is opposite to the movement direction, and the reverse rotation end of the supporting rod is attached to the outer wall of the operation self-locking body.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a universal circuit breaker safety operating mechanism. Background Art

[0002] Universal circuit breaker, also known as frame circuit breaker, is a mechanical switch 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] For example, the operating mechanism of the universal circuit breaker with patent number CN213184163U includes a mechanism frame, a main shaft rotatably arranged on the mechanism frame, a connecting rod assembly linked with the main shaft, an opening half-shaft arranged on the mechanism frame, a closing half-shaft arranged on the mechanism frame, an energy storage spring assembly, an energy storage closing assembly arranged on the mechanism frame, an opening latch, and an opening lever arranged between the opening half-shaft and the opening latch. The above document still has shortcomings. When in use, two connecting shafts and a driving shaft are respectively arranged between the two lever support plates of the energy storage lever. The two connecting shafts and the driving shaft are distributed in a triangular shape between the two lever support plates. The energy storage lever adopts a triangular structure design, which is more stable. The invention discloses a universal circuit breaker having a plurality of operating mechanisms, a plurality of connecting rods and a plurality of connecting rods, and a plurality of connecting rods and a plurality of connecting rods. The plurality of connecting rods and a plurality of connecting rods are connected to each other by ... Summary of the invention

[0004] The utility model aims to solve the problem that the prior art is inconvenient to achieve safe operation, and provides a universal circuit breaker safe operation mechanism.

[0005] The utility model adopts a technical solution to solve the technical problem: the universal circuit breaker safety operating mechanism comprises a universal circuit breaker and a main shaft, the main shaft is arranged inside the universal circuit breaker, an operating self-locking body is fixedly connected to the outer wall of the main shaft, a connecting rod is arranged below the operating self-locking body, a protective cover is arranged in front of the universal circuit breaker, a clamping mechanism is arranged inside the protective cover, a first through hole is arranged inside the operating self-locking body, and a connecting mechanism is arranged inside the first through hole.

[0006] For further improvement, the connecting mechanism includes a cylinder, the outer wall of the cylinder is gap-matched with the first through hole, the outer walls of the cylinder and both ends of the screw are rotatably connected through bearings, the end of the screw is fixedly connected to a rotating wheel, the outer wall of the screw is threadedly connected to a threaded block, the outer wall of the threaded block is slidably connected to the cylinder, the surface of the threaded block is fixedly connected to a pin rod, the outer wall of the pin rod is slidably connected to a slide groove arranged in the support rod, the support rod is rotatably connected to the cylinder through a pin shaft, and the outer wall of the cylinder is fixedly connected to a ring.

[0007] Further improvement, the clamping mechanism includes a locking rod, the outer wall of the locking rod is fixedly connected to the protective cover, the locking rod is clamped with the clamping rod, the clamping rod is rotatably connected to the universal circuit breaker through a pin shaft, the clamping rod is fixedly connected to one end of the sliding rod, the outer wall of the sliding rod is slidably connected to the sleeve, the sleeve is fixedly connected to the interior of the universal circuit breaker, a spring is arranged inside the sleeve, and the two ends of the spring are respectively fixedly connected to the sleeve and the sliding rod.

[0008] For further improvement, a second through hole is provided inside the connecting rod, and the second through hole is clearance-matched with the outer wall of the cylinder.

[0009] For further improvement, a bent rod is fixedly connected below the protective cover, and a sliding block is fixedly connected to the end of the bent rod.

[0010] Further improvement, the outer wall of the sliding block is slidably connected to a slideway, and the slideway is fixedly connected to the inside of the universal circuit breaker.

[0011] The beneficial effects of the utility model are as follows: the utility model, through the cooperation among the cylinder, the screw, the rotating wheel, the threaded block, the pin rod, the support rod and the circular ring, rotates the rotating wheel, the rotating wheel drives the screw rod to rotate, the screw drives the threaded block to slide, the threaded block drives the pin rod to move, the pin rod drives the pin rod to rotate through the sliding groove arranged in the support rod, so that the end of the support rod is retracted into the interior of the cylinder, the cylinder is passed through the first through hole and the second through hole, and the circular ring is fitted with the outer wall of the operating self-locking body, the rotating wheel is rotated in the opposite direction, the support rod has the opposite movement direction to the above-mentioned direction, the reversely rotated end of the support rod is fitted with the outer wall of the operating self-locking body, and the operating self-locking body and the connecting rod are connected, the assembly process is simple, the assembly efficiency is high, the risk of electric shock is reduced under simple operation, and safe operation is easy to achieve.

[0012] Through the cooperation between the locking rod, the clamping rod, the sliding rod, the sleeve and the spring, the protective cover drives the locking rod to move. When the locking rod contacts the clamping rod, the locking rod drives the clamping rod to rotate, and the clamping rod drives the sliding rod to move. The sliding rod slides inside the sleeve, and the sliding rod compresses the spring. When the locking rod reaches the clamping groove position inside the clamping rod, the spring drives the clamping rod to rotate in the opposite direction under the elastic action, and the clamping rod is clamped with the locking rod to clamp and fix the position of the protective cover in front of the universal circuit breaker. The protective cover on the universal circuit breaker is not only simple in structure, but also very easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the connection between the locking rod, the clamping rod and the sliding rod in the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the connection between the first through hole, the second through hole and the connecting rod in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the connection between the screw rod, the rotating wheel and the threaded block in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the connection between the locking rod, the clamping rod and the cross rod in the utility model;

[0018] Figure 6 It is a structural schematic diagram of the connection between the universal circuit breaker and the slideway in the utility model.

[0019] Explanation of the reference numerals: 1. universal circuit breaker, 2. main shaft, 3. connecting mechanism, 301. cylinder, 302. screw, 303. rotating wheel, 304. threaded block, 305. pin, 306. support rod, 307. ring, 4. clamping mechanism, 401. locking rod, 402. clamping rod, 403. sliding rod, 404. sleeve, 405. spring, 4a1. cross bar, 5. operating self-locking body, 6. connecting rod, 7. protective cover, 8. first through hole, 9. second through hole, 10. bent rod, 11. slider, 12. slideway. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings: Embodiment 1:

[0021] Refer to the attached Figure 1-6 : In this embodiment, a universal circuit breaker safety operating mechanism includes a universal circuit breaker 1 and a main shaft 2, the main shaft 2 is arranged inside the universal circuit breaker 1, an operating self-locking body 5 is fixedly connected to the outer wall of the main shaft 2, a connecting rod 6 is arranged below the operating self-locking body 5, a protective cover 7 is arranged in front of the universal circuit breaker 1, the protective cover 7 protects the internal structure, a clamping mechanism 4 is arranged inside the protective cover 7, the clamping mechanism 4 facilitates the clamping and fixing of the protective cover 7, a first through hole 8 is arranged inside the operating self-locking body 5, a connecting mechanism 3 is arranged inside the first through hole 8, and the connecting mechanism 3 realizes the connection between the operating self-locking body 5 and the connecting rod 6;

[0022] A second through hole 9 is provided inside the connecting rod 6, and the second through hole 9 is gap-matched with the outer wall of the cylinder 301, and the cylinder 301 can pass through the second through hole 9. A bent rod 10 is fixedly connected to the bottom of the protective cover 7, and the protective cover 7 drives the bent rod 10 to move. A slider 11 is fixedly connected to the end of the bent rod 10, and the bent rod 10 drives the slider 11 to move. The outer wall of the slider 11 is slidably connected to the slideway 12, and the slider 11 slides inside the slideway 12, and the slideway 12 is fixed to the inside of the universal circuit breaker 1.

[0023] The connecting mechanism 3 includes a cylinder 301, a screw rod 302, a rotating wheel 303, a threaded block 304, a pin rod 305, a support rod 306 and a ring 307. The outer wall of the cylinder 301 is in clearance fit with the first through hole 8, and the cylinder 301 can pass through the first through hole 8. The outer walls of the cylinder 301 and both ends of the screw rod 302 are rotatably connected through bearings. The end of the screw rod 302 is fixedly connected with a rotating wheel 303, and the rotating wheel 303 drives the screw rod 302 to rotate. The outer wall of the screw rod 302 is threadedly connected with the threaded block 304, and the screw 302 drives the threaded block 304 to slide.

[0024] The outer wall of the threaded block 304 is slidably connected to the cylinder 301, and a pin 305 is fixedly connected to the surface of the threaded block 304. The threaded block 304 drives the pin 305 to move. The outer wall of the pin 305 is slidably connected to the slide groove provided in the support rod 306. The pin 305 drives the support rod 306 to move through the slide groove provided inside. The support rod 306 is rotatably connected to the cylinder 301 through the pin shaft. A ring 307 is fixedly connected to the outer wall of the cylinder 301, and the ring 307 cannot pass through the first through hole 8;

[0025] By rotating the rotating wheel 303, the rotating wheel 303 drives the screw rod 302 to rotate, the screw rod 302 drives the threaded block 304 to slide, the threaded block 304 drives the pin rod 305 to move, the pin rod 305 drives the pin rod 306 to rotate through the slide groove provided in the support rod 306, so that the end of the support rod 306 is retracted into the interior of the cylinder 301, the cylinder 301 is passed through the first through hole 8 and the second through hole 9, and the ring 307 is fitted with the outer wall of the operating self-locking body 5, the rotating wheel 303 is reversed, the support rod 306 moves in the opposite direction to the above-mentioned direction, and the reverse rotation end of the support rod 306 is fitted with the outer wall of the operating self-locking body 5, so that the operating self-locking body 5 is connected with the connecting rod 6. The assembly process is simple and the assembly efficiency is high. The risk of electric shock is reduced under simple operation, and safe operation is easy to achieve.

[0026] The clamping mechanism 4 includes a locking rod 401, a clamping rod 402, a slide bar 403, a sleeve 404 and a spring 405. The outer wall of the locking rod 401 is fixedly connected to the protective cover 7. The protective cover 7 drives the locking rod 401 to move. The locking rod 401 is clamped with the clamping rod 402. The locking rod 401 and the clamping rod 402 are clamped to fix the position of the protective cover 7. The clamping rod 402 is rotationally connected to the universal circuit breaker 1 through a pin shaft. The clamping rod 402 is fixedly connected to one end of the slide bar 403, and the clamping rod 402 and the slide bar 403 move together.

[0027] The outer wall of the slide bar 403 is slidably connected to the sleeve 404, the slide bar 403 slides inside the sleeve 404, the sleeve 404 is fixed inside the universal circuit breaker 1, and a spring 405 is arranged inside the sleeve 404. The model of the spring 405 is selected according to the actual use requirements and meets the working requirements. The spring 405 can drive the slide bar 403 to slide under the elastic action, and the two ends of the spring 405 are fixedly connected to the sleeve 404 and the slide bar 403 respectively;

[0028] The protective cover 7 drives the locking rod 401 to move. When the locking rod 401 contacts the clamping rod 402, the locking rod 401 drives the clamping rod 402 to rotate. The clamping rod 402 drives the sliding rod 403 to move. The sliding rod 403 slides inside the sleeve 404. The sliding rod 403 compresses the spring 405. When the locking rod 401 reaches the clamping groove position inside the clamping rod 402, the spring 405 drives the clamping rod 402 to rotate in the opposite direction under the elastic action. The clamping rod 402 is clamped with the locking rod 401, and the position of the protective cover 7 is clamped and fixed in front of the universal circuit breaker 1. The protective cover 7 on the universal circuit breaker 1 is not only simple in structure, but also very easy to assemble.

[0029] Working principle:

[0030] When the safety operating mechanism of the universal circuit breaker is connected with the operating self-locking body 5;

[0031] Installation operation phase:

[0032] The rotating wheel 303 is rotated, and the rotating wheel 303 drives the screw rod 302 to rotate, and the screw rod 302 drives the threaded block 304 to slide, and the threaded block 304 drives the pin rod 305 to move, and the pin rod 305 drives the pin rod 306 to rotate through the sliding groove provided in the support rod 306, so that the end of the support rod 306 is retracted into the interior of the cylinder 301, and the connecting rod 6 is inserted into the interior of the operating self-locking body 5, so that the position of the second through hole 9 corresponds to the position of the first through hole 8, and the cylinder 301 passes through the first through hole 8 and the second through hole 9, and the ring 307 is fitted with the outer wall of the operating self-locking body 5, and the rotating wheel 303 is reversed. The support rod 306 moves in the opposite direction to the above-mentioned direction, and the reverse rotation end of the support rod 306 is fitted with the outer wall of the operating self-locking body 5, so that the operating self-locking body 5 is connected with the connecting rod 6. The assembly process is simple and the assembly efficiency is high. The risk of electric shock is reduced under simple operation, which is convenient for achieving safe operation.

[0033] Protective cover installation stage:

[0034] When it is necessary to install the protective cover 7, the slider 11 is aligned with the position of the slideway 12, the slider 11 is inserted into the inside of the slideway 12, the protective cover 7 is inserted into the inside of the universal circuit breaker 1, and the protective cover 7 drives the locking rod 401 to move. When the locking rod 401 contacts the clamping rod 402, the locking rod 401 drives the clamping rod 402 to rotate, and the clamping rod 402 drives the sliding rod 403 to move. The sliding rod 403 slides inside the sleeve 404, and the sliding rod 403 compresses the spring 405. When the locking rod 401 reaches the clamping groove position inside the clamping rod 402, the spring 405 drives the clamping rod 402 to rotate in the opposite direction under the elastic action, and the clamping rod 402 is clamped with the locking rod 401, so that the position of the protective cover 7 is clamped and fixed in front of the universal circuit breaker 1. The protective cover 7 on the universal circuit breaker 1 is not only simple in structure, but also very easy to assemble. Embodiment 2:

[0035] Refer to the attached Figure 1-6 : In this embodiment, a universal circuit breaker safety operating mechanism, the clamping mechanism 4 also includes a cross bar 4a1, the cross bar 4a1 is fixed to the outer wall of the clamping rod 402, the cross bar 4a1 drives the clamping rod 402 to move, and a hollow mechanism for the cross bar 4a1 to move is provided inside the universal circuit breaker 1;

[0036] Through the action of the cross bar 4a1, when the protective cover 7 needs to be disassembled, the cross bar 4a1 is pulled upward, and the cross bar 4a1 drives the clamping rod 402 to move, and the clamping rod 402 is separated from the locking rod 401, so that the protective cover 7 is disassembled.

[0037] Working principle:

[0038] When the protective cover 7 needs to be disassembled, the cross bar 4a1 is pulled upwards, and the cross bar 4a1 drives the clamping rod 402 to move, and the clamping rod 402 is separated from the locking rod 401, so that the protective cover 7 is disassembled.

[0039] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A universal circuit breaker safety operating mechanism, comprising a universal circuit breaker (1) and a main shaft (2), wherein the main shaft (2) is arranged inside the universal circuit breaker (1), and is characterized in that: An operating self-locking body (5) is fixedly connected to the outer wall of the main shaft (2), a connecting rod (6) is arranged below the operating self-locking body (5), a protective cover (7) is arranged in front of the universal circuit breaker (1), a clamping mechanism (4) is arranged inside the protective cover (7), a first through hole (8) is arranged inside the operating self-locking body (5), and a connecting mechanism (3) is arranged inside the first through hole (8).

2. The universal circuit breaker safety operating mechanism according to claim 1 is characterized in that: The connection mechanism (3) comprises a cylinder (301), the outer wall of the cylinder (301) being loosely matched with the first through hole (8), the outer walls of the cylinder (301) and both ends of the screw rod (302) being rotatably connected via bearings, a rotating wheel (303) being fixedly connected to the end of the screw rod (302), a threaded block (304) being threadedly connected to the outer wall of the screw rod (302), the outer wall of the threaded block (304) being slidably connected to the cylinder (301), a pin rod (305) being fixedly connected to the surface of the threaded block (304), the outer wall of the pin rod (305) being slidably connected to a sliding groove provided in a support rod (306), the support rod (306) being rotatably connected to the cylinder (301) via a pin shaft, and a ring (307) being fixedly connected to the outer wall of the cylinder (301).

3. The universal circuit breaker safety operating mechanism according to claim 1 is characterized in that: The clamping mechanism (4) comprises a locking rod (401), the outer wall of the locking rod (401) is fixedly connected to the protective cover (7), the locking rod (401) is clamped to a clamping rod (402), the clamping rod (402) is rotatably connected to the universal circuit breaker (1) via a pin, the clamping rod (402) is fixedly connected to one end of a sliding rod (403), the outer wall of the sliding rod (403) is slidably connected to a sleeve (404), the sleeve (404) is fixedly connected to the interior of the universal circuit breaker (1), a spring (405) is arranged inside the sleeve (404), and the two ends of the spring (405) are respectively fixedly connected to the sleeve (404) and the sliding rod (403).

4. The universal circuit breaker safety operating mechanism according to claim 1 is characterized in that: A second through hole (9) is provided inside the connecting rod (6), and the second through hole (9) is clearance-matched with the outer wall of the cylinder (301).

5. The universal circuit breaker safety operating mechanism according to claim 1 is characterized in that: A bent rod (10) is fixedly connected below the protective cover (7), and a sliding block (11) is fixedly connected to the end of the bent rod (10).

6. The universal circuit breaker safety operating mechanism according to claim 5 is characterized in that: The outer wall of the sliding block (11) is slidably connected to a slideway (12), and the slideway (12) is fixedly connected to the interior of the universal circuit breaker (1).

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