Circuit breaker short-circuit current test automatic closing device

Abstract

The utility model provides a circuit breaker short circuit current test automatic closing device, which comprises a box body, an electromagnet, a spring shock absorber, a mounting seat, an insulating rope buckle, a connecting seat, a balancing weight and a positioning slide bar, a base is fixed on the lower end surface in the box body, mounting vertical plates are fixed on the front and back sides of the upper end surface of the base, and a movable shaft is movably connected between the mounting vertical plates. A connecting base is fixed to the left end face of the movable plate; a balancing weight is connected to the lower end face of the connecting base; a spring shock absorber is fixed between the movable plate and the box body; a mounting base is fixed to the upper end face of the interior of the box body; according to the design, after the remote control breaking electromagnet is used, the balancing weight descends, the rope buckle is driven to pull the circuit breaker handle upwards to be switched on, personnel operation is not needed, and personnel danger caused by electric arc or explosion generated by a large-current test can be avoided.

Description

Technical Field

[0001] The utility model relates to an automatic closing device for short-circuit current testing of a circuit breaker, belonging to the technical field of inspection and detection. Background Art

[0002] In some existing short-circuit current tests, manual closing of the circuit breaker by wire pulling is used, which poses a safety hazard. Operational errors or arcing of the sample under test may endanger the safety of the operator. Secondly, the use of manual wire pulling cannot ensure the force or direction used for each closing, and the sample under test cannot be closed normally. Now, an automatic closing device for circuit breaker short-circuit current test is urgently needed to solve the above problems. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an automatic closing device for a short-circuit current test of a circuit breaker to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure. The design uses a remote-controlled disconnecting electromagnet to lower the counterweight block, driving the rope buckle to pull the circuit breaker handle upward to close the circuit breaker without human operation, which can avoid arcing or explosion caused by large current tests that may cause danger to personnel.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: an automatic closing device for short-circuit current test of a circuit breaker, comprising a box, an electromagnet, a spring shock absorber, a mounting seat, a positioning slide groove, an insulating rope buckle, a connecting seat, a counterweight and a positioning slide rod, a base is fixed to the lower end surface of the box, mounting vertical plates are fixed to both the front and rear sides of the upper end surface of the base, a movable shaft is movably connected between the mounting vertical plates, a movable plate is fixed between the movable shafts, an electromagnet is fixed to the upper end surface of the box, a connecting seat is fixed to the left end surface of the movable plate, and a counterweight is connected to the lower end surface of the connecting seat;

[0005] A spring shock absorber is fixed between the movable plate and the box body, a mounting seat is fixed to the upper end surface inside the box body, a positioning slide groove is opened inside the mounting seat, positioning slide rods are fixed to the front and rear end surfaces of the movable plate and are slidably connected to the positioning slide groove, an insulating rope buckle is fixed to the lower end surface of the movable plate, a mounting guide rail is fixed inside the box body, and a sample to be tested is installed on the front end surface of the mounting guide rail.

[0006] Furthermore, a bearing seat is arranged inside the mounting vertical plate, the inner diameter of the bearing seat is equal to the outer diameter of the movable shaft, and the two can be rotatably connected in a fitting manner.

[0007] Furthermore, the electromagnet is electrically connected to an external power source and an external controller through a wire, the specifications of the electromagnet match the specifications of the connecting socket, and the two can be connected in a fitting manner.

[0008] Furthermore, the specification of the positioning slide groove matches the specification of the positioning slide rod, and the two can fit and slide together, and the positioning slide groove is configured as an arc-shaped structure.

[0009] Furthermore, the insulating rope buckle is connected to the hanging buckle of the sample to be tested.

[0010] Furthermore, a rectangular groove is provided inside the mounting seat, and the inner wall of the rectangular groove is slidably connected to the front and rear side surfaces of the movable plate.

[0011] The beneficial effects of the utility model are as follows: the utility model is an automatic closing device for a short-circuit current test of a circuit breaker. Since the utility model adds an electromagnet, a spring shock absorber, a mounting seat, a positioning slide groove, an insulating rope buckle, a connecting seat, a counterweight block and a positioning slide rod, the design uses a remote-controlled disconnecting electromagnet and the counterweight block descends, driving the rope buckle to pull the circuit breaker handle upward to close the circuit breaker without human operation, which can avoid the danger of arc or explosion caused by large current tests and solve the problem of manual closing by wire pulling in the original short-circuit current test, which has safety hazards. Operational errors or arcing generated by the sample being tested may endanger the safety of the operator; secondly, the use of human wire pulling cannot ensure the force or direction used for each closing, and the sample being tested cannot be closed normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a structural cross-sectional view of an automatic closing device for short-circuit current testing of a circuit breaker according to the utility model;

[0014] Figure 2 This is a partial structural diagram of an automatic closing device for short-circuit current testing of a circuit breaker of the utility model;

[0015] Figure 3 This is a partial structural diagram of an automatic closing device for short-circuit current testing of a circuit breaker of the utility model;

[0016] In the figure: 1-box, 2-electromagnet, 3-mounting vertical plate, 4-base, 5-spring shock absorber, 6-mounting seat, 7-positioning slide, 8-mounting guide rail, 9-tested sample, 10-insulating rope buckle, 11-connecting seat, 12-counterweight block, 13-movable plate, 14-movable shaft, 15-positioning slide rod. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: an automatic closing device for short-circuit current test of a circuit breaker, comprising a box body 1, an electromagnet 2, a spring shock absorber 5, a mounting seat 6, a positioning slide groove 7, an insulating rope buckle 10, a connecting seat 11, a counterweight 12 and a positioning slide bar 15, a base 4 is fixed to the lower end surface of the box body 1, a mounting vertical plate 3 is fixed to both the front and rear sides of the upper end surface of the base 4, a movable shaft 14 is movably connected between the mounting vertical plates 3, a movable plate 13 is fixed between the movable shafts 14, an electromagnet 2 is fixed to the upper end surface of the box body 1, a connecting seat 11 is fixed to the left end surface of the movable plate 13, and a counterweight 12 is connected to the lower end surface of the connecting seat 11;

[0019] A spring shock absorber 5 is fixed between the movable plate 13 and the box body 1, a mounting seat 6 is fixed to the upper end surface inside the box body 1, a positioning slide groove 7 is opened inside the mounting seat 6, positioning slide rods 15 are fixed to the front and rear end surfaces of the movable plate 13 and are slidably connected with the positioning slide groove 7, an insulating rope buckle 10 is fixed to the lower end surface of the movable plate 13, a mounting guide rail 8 is fixed inside the box body 1, and a sample to be tested 9 is installed on the front end surface of the mounting guide rail 8. This design uses a remote-controlled disconnecting electromagnet 2, and the rear counterweight block 12 descends, driving the rope buckle to pull the circuit breaker handle upward to close the switch, without human operation, which can avoid arcing or explosion caused by large current tests and cause danger to personnel.

[0020] As the first embodiment of the utility model: a bearing seat is arranged inside the mounting riser 3, the inner diameter of the bearing seat is equal to the outer diameter of the movable shaft 14, and the two can be connected in a close fit and rotation. The design enables the movable plate 13 to flip up and down between the mounting risers 3 by the close fit and rotation connection between the movable shaft 14 and the bearing seat. The electromagnet 2 is electrically connected to the external power supply and the external controller through a wire. The specifications of the electromagnet 2 match the specifications of the connecting seat 11, and the two can be connected in a close fit. The design controls the on and off of the electromagnet 2 through the external controller to control the position of the counterweight 12.

[0021] A rectangular groove is provided inside the mounting seat 6, and the inner wall of the rectangular groove is fitted and slidably connected with the front and rear side surfaces of the movable plate 13. The specifications of the positioning slide groove 7 match the specifications of the positioning slide rod 15, and the two can be fitted and slidably connected. The positioning slide groove 7 is set to an arc structure. This design limits the up and down flipping movement trajectory of the movable plate 13 by fitting and slidingly bonding the positioning slide groove 7 and the positioning slide rod 15, and the movement is more stable. The insulating rope buckle 10 is connected with the hook of the sample 9 to be tested. This design drives the insulating rope buckle 10 to rise by flipping the movable plate 13 upward, and then drives the opening and closing switch of the sample 9 to rise, so that the circuit short circuit test can be completed.

[0022] As a second embodiment of the present utility model: the electromagnet 2 is disconnected by an external controller, at which time the electromagnet 2 is separated from the connecting seat 11, the counterweight 12 descends, and the movable shaft 14 is connected to the bearing seat by rotation, so that the movable plate 13 can flip up and down between the mounting vertical plates 3, and the counterweight 12 drives the left end of the movable plate 13 to flip downward, and the right end of the movable plate 13 flips upward to drive the insulating rope buckle 10 to rise, and then drives the opening and closing of the sample under test 9 to rise, that is, the circuit short-circuit test can be completed, and the positioning slide groove 7 and the positioning slide rod 15 are fitted and slidably bonded, so that the up and down flipping activity trajectory of the movable plate 13 is limited, and the activity is more stable.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circuit breaker short-circuit current test automatic closing device, comprising a box, an electromagnet, a spring shock absorber, a mounting seat, a positioning slide, an insulating rope buckle, a connecting seat, a counterweight and a positioning slide, characterized in that: A base is fixed to the lower end surface of the box body, mounting vertical plates are fixed to the front and rear sides of the upper end surface of the base, a movable shaft is movably connected between the mounting vertical plates, a movable plate is fixed between the movable shafts, an electromagnet is fixed to the upper end surface of the box body, a connecting seat is fixed to the left end surface of the movable plate, and a counterweight is connected to the lower end surface of the connecting seat; A spring shock absorber is fixed between the movable plate and the box body, a mounting seat is fixed to the upper end surface inside the box body, a positioning slide groove is opened inside the mounting seat, positioning slide rods are fixed to the front and rear end surfaces of the movable plate and are slidably connected to the positioning slide groove, an insulating rope buckle is fixed to the lower end surface of the movable plate, a mounting guide rail is fixed inside the box body, and a sample to be tested is installed on the front end surface of the mounting guide rail.

2. The circuit breaker short-circuit current test automatic closing device according to claim 1, characterized in that: A bearing seat is arranged inside the mounting vertical plate, the inner diameter of the bearing seat is equal to the outer diameter of the movable shaft, and the two can be rotatably connected in a fitting manner.

3. The circuit breaker short-circuit current test automatic closing device according to claim 1, characterized in that: The electromagnet is electrically connected to an external power source and an external controller through a wire. The specifications of the electromagnet match those of the connecting socket, and the two can be connected in a fitting manner.

4. The circuit breaker short-circuit current test automatic closing device according to claim 1, characterized in that: The specification of the positioning slide groove matches that of the positioning slide rod, and the two can fit and slide together, and the positioning slide groove is configured as an arc-shaped structure.

5. The circuit breaker short-circuit current test automatic closing device according to claim 1, characterized in that: The insulating rope buckle is connected to the tested sample hanging buckle.

6. The circuit breaker short-circuit current test automatic closing device according to claim 1, characterized in that: A rectangular groove is provided inside the mounting seat, and the inner wall of the rectangular groove is slidably connected to the front and rear side surfaces of the movable plate.

Images