A circuit breaker for electromechanical equipment in coal mines

Abstract

The utility model relates to a circuit breaker for electromechanical equipment in a coal mine, comprising a low-voltage circuit breaker, a closing switch is arranged at the front side of the low-voltage circuit breaker, a warning mechanism is arranged at the lower side of the front end of the low-voltage circuit breaker, the warning mechanism comprises a box body, a warning light and a self-resetting normally open switch, the box body damping sliding is arranged at the front end of the low-voltage circuit breaker, the warning light is arranged at the front side of the box body, the self-resetting normally open switch is arranged at the upper side of the front end of the box body, and the self-resetting normally open switch is located behind the closing switch; the circuit of the self-resetting normally open switch is closed by squeezing the closing switch, and the warning light can be started to warn people, so as to avoid other staff members from mistakenly operating the closing circuit of the electromechanical equipment, and protect the personal safety of the maintenance personnel.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers, and in particular relates to a circuit breaker for electromechanical equipment of a coal mine. Background Art

[0002] A low-voltage circuit breaker is a switching device that can not only connect and disconnect normal load current and overload current, but also connect and disconnect short-circuit current. It can protect against load, short circuit, undervoltage and leakage. The remote-controlled low-voltage circuit breaker can individually switch on and off the equipment in the workplace, achieving the effect of remote overall and single-unit control. The existing circuit breakers are not equipped with warning devices. When maintenance personnel are powering off the electromechanical equipment for maintenance, other staff may not be aware of the situation and close the gate, causing the electromechanical equipment to be powered on, which may easily cause safety accidents. For this purpose, a coal mine electromechanical equipment circuit breaker is provided. Utility Model Content

[0003] The purpose of the utility model is to provide a circuit breaker for electromechanical equipment in a coal mine, so as to solve the problems existing in the background technology.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] A circuit breaker for electromechanical equipment in a coal mine comprises a low-voltage circuit breaker, a closing switch is mounted on the front side of the low-voltage circuit breaker, a warning mechanism is arranged on the lower side of the front end of the low-voltage circuit breaker, the warning mechanism comprises a box body, a warning light and a self-resetting normally open switch, the box body is damped and slidably arranged at the front end of the low-voltage circuit breaker, the warning light is mounted on the front side of the box body, the self-resetting normally open switch is mounted on the upper side of the front end of the box body, and the self-resetting normally open switch is located behind the closing switch.

[0006] Preferably, two assembly bars are fixedly mounted on the front end of the low-voltage circuit breaker, and slide grooves are provided at opposite ends of the two assembly bars. Slide bars matching the slide grooves are fixedly mounted on the upper sides of both left and right ends of the box body.

[0007] Preferably, an elastic rubber sheet is fixedly provided at one end of the two slide bars away from each other, and the elastic rubber sheet is slidably matched with the slide groove in an interference fit.

[0008] Preferably, a guiding slope is provided on the upper side of the end of the self-resetting normally open switch.

[0009] Preferably, the lower side of the front end of the box body is provided with anti-slip texture.

[0010] Preferably, a corrugated isolation rubber cover is provided between the closing switch and the low-voltage circuit breaker.

[0011] By disconnecting the closing switch, the rear end of the closing switch can squeeze the self-resetting switch provided on the upper side of the box body, so that the circuit of the self-resetting switch is connected. At this time, the warning light will light up to remind people to avoid people from accidentally closing the closing switch and causing safety accidents. After the maintenance is completed, the operator can turn off the warning light by slightly lifting the closing switch upwards and then pulling the box body downwards, which can avoid people from accidentally pulling the box body downwards and causing the indicator light to turn off; and the warning light can only be turned on when the closing switch is disconnected. When the closing switch is in the closed state, the warning light will not light up when the box body is slid upwards. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0013] Figure 1 This is a structural schematic diagram of a first embodiment of a circuit breaker for electromechanical equipment in a coal mine according to the utility model;

[0014] Figure 2 It is a right side view of the first embodiment of the utility model;

[0015] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0016] Figure 4 This is a schematic diagram of the structure explosion of the first embodiment of the utility model;

[0017] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0018] Figure 6 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0019] The main component symbols are described as follows:

[0020] A low voltage circuit breaker 1, a closing switch 11, a box body 12, a warning light 13, a self-resetting normally open switch 14, an assembly strip 15, a slide groove 151, a slide bar 152, a guide slope 16, an anti-slip pattern 17, and a pleated isolation rubber cover 21. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Embodiment 1:

[0023] like Figure 1-5As shown, a circuit breaker for electromechanical equipment of a coal mine of the utility model comprises a low-voltage circuit breaker 1, a closing switch 11 is mounted on the front side of the low-voltage circuit breaker 1, a warning mechanism is arranged on the lower side of the front end of the low-voltage circuit breaker 1, the warning mechanism comprises a box body 12, a warning light 13 and a self-resetting normally open switch 14, the box body 12 is slidingly damped and arranged at the front end of the low-voltage circuit breaker 1, an anti-slip pattern 17 is arranged on the lower side of the front end of the box body 12, the warning light 13 is mounted on the front side of the box body 12, the self-resetting normally open switch 14 is mounted on the upper side of the front end of the box body 12, the self-resetting normally open switch 14 is located behind the closing switch 11, and a guide slope 16 is arranged on the upper side of the end of the self-resetting normally open switch 14;

[0024] The self-resetting normally open switch 14 is a simple device in the prior art. Its initial state is the disconnected state. The end of the self-resetting normally open switch 14 is pushed to close the circuit. When the end of the self-resetting normally open switch 14 is released, the end will be pushed to reset by the elastic reset member provided inside, thereby disconnecting the circuit. Since the end part of the self-resetting normally open switch 14 is light in weight, the reset elasticity of the elastic reset member is smaller than that of the closing switch 11. When the maintenance personnel inspect the electromechanical equipment, before closing the closing switch 11, they first slide the box body 12 upwards, and then close the closing switch 11 downwards. At this time, the closing switch 11 has an impact on the self-resetting normally open switch. 14 is squeezed, and the lower end of the end of the self-resetting normally open switch 14 abuts against the closing switch 11, so that the circuit of the self-resetting normally open switch 14 is connected, and the warning light 13 lights up to warn people, avoiding other staff from accidentally operating the closing switch, thereby ensuring the personal safety of the maintenance personnel; wherein the lower end of the end of the self-resetting normally open switch 14 abuts against the closing switch 11, and the box body 12 cannot slide downward when the closing switch 11 is disconnected, and is blocked by the end of the closing switch 11. After the maintenance personnel complete the maintenance, they need to slightly lift the closing switch 11 and then slide the box body 12 downward to turn off the warning light 13, avoiding the box body 12 being accidentally pulled by people;

[0025] Before maintenance, people can first push the corresponding closing switch 11 downward to short-circuit the circuit, and then push the box body 12 upward, and use the guide slope 16 to push the self-resetting normally open switch 14 to the rear side of the closing switch 11. This can also make the warning light 13 light up. However, compared with the former, this operation method can avoid the closing switch 11 from impacting the self-resetting normally open switch 14 downward, thereby increasing the service life of components.

[0026] In the preferred embodiment of the present invention, two assembly bars 15 are fixedly mounted on the front end of the low-voltage circuit breaker 1, and a slide groove 151 is provided at the opposite ends of the two assembly bars 15. Slide bars 152 matching the slide groove 151 are fixedly mounted on the upper sides of the left and right ends of the box body 12, and elastic rubber sheets are fixedly mounted at the ends of the two slide bars 152 away from each other, and the elastic rubber sheets are slidingly matched with the slide groove 151 by interference fit;

[0027] The box body 12 slides up and down in the slide groove 151 through the slide bar 152 assembled on the side. The elastic rubber sheet can prevent the box body 12 from loosening and sliding down, so that the slide bar 152 can be fixed at any position of the slide groove 151 through damping.

[0028] Embodiment 2:

[0029] like Figure 6 As shown, as a further optimization of the above-mentioned embodiment 1, a corrugated isolation rubber cover 21 is provided between the closing switch and the low-voltage circuit breaker 1 .

[0030] There will be a lot of dust and impurities in the working environment of the mining area. The low-voltage circuit breaker 1 needs to protect the low-voltage circuit breaker 1 while protecting the electromechanical equipment of the coal mine; the pleated isolation rubber cover 21 covers one end of the closing switch 11 without hindering the up and down rotation of the closing switch 11. The pleated isolation rubber cover 21 can protect the gap of the closing switch 11 to prevent mine dust from entering and affecting the normal use of the closing switch 11, thereby protecting the closing switch 11.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A circuit breaker for electromechanical equipment in a coal mine, including a low voltage circuit breaker, characterized in that: A closing switch is installed on the front side of the low-voltage circuit breaker, and a warning mechanism is provided on the lower side of the front end of the low-voltage circuit breaker. The warning mechanism includes a box body, a warning light and a self-resetting normally open switch. The box body is damped and slidably arranged at the front end of the low-voltage circuit breaker, the warning light is installed on the front side of the box body, the self-resetting normally open switch is installed on the upper side of the front end of the box body, and the self-resetting normally open switch is located behind the closing switch.

2. A circuit breaker for electromechanical equipment in a coal mine according to claim 1, characterized in that: Two assembly bars are fixedly mounted on the front end of the low-voltage circuit breaker, and slide grooves are provided at opposite ends of the two assembly bars. Slide bars matching the slide grooves are fixedly mounted on the upper sides of both left and right ends of the box body.

3. A circuit breaker for electromechanical equipment in a coal mine according to claim 2, characterized in that: An elastic rubber sheet is fixedly arranged at one end of the two slide bars which are away from each other, and the elastic rubber sheet is slidably matched with the slide groove in an interference fit.

4. A circuit breaker for electromechanical equipment in a coal mine according to claim 1, characterized in that: A guiding inclined surface is arranged on the upper side of the end of the self-resetting normally open switch.

5. A circuit breaker for electromechanical equipment in a coal mine according to claim 1, characterized in that: The lower side of the front end of the box body is provided with anti-slip patterns.

6. A circuit breaker for electromechanical equipment in a coal mine according to claim 1, characterized in that: A corrugated isolation rubber cover is provided between the closing switch and the low-voltage circuit breaker.

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