CN212322923U - Short-circuit protection device for electrical switch for coal mine - Google Patents

Abstract

The utility model discloses an electrical switch short-circuit protection device for coal mine relates to electrical protection equipment technical field, specifically includes the casing, and the lateral surface of casing is equipped with the closing plate, and the viewing aperture has been seted up at the middle part of closing plate, and the inside of viewing aperture is equipped with explosion-proof rack and explosion-proof glass, and the inside of casing is equipped with oxygen sensor and treater, and a lateral wall of casing is equipped with the deoxidization storehouse, and the inside in deoxidization storehouse is equipped with the deoxidization agent, and the inside wall in deoxidization storehouse is equipped with locking pop-up mechanism. This electrical switch short-circuit protection device for coal mine, setting through the deoxidant, make the inside oxygen content of the device be in safe state all the time, reach the purpose that prevents the explosion accident and take place, cooperation setting through except that oxygen storehouse and locking pop-up mechanism, constitute a second grade sealing mechanism that can partially open in the inside of casing, sealed dirt-proof purpose has been reached, cooperation setting through explosion-proof glass and explosion-proof rack, thereby the effect of reinforcing security performance has been played, purpose safe in utilization has been reached.

Description

Short-circuit protection device for electrical switch for coal mine

Technical Field

The utility model relates to an electrical protection equipment technical field specifically is electrical switch short-circuit protection device for colliery.

Background

The mining area electrical equipment switch 'three-opening one-prevention' is the basis, wherein the 'three-opening one-prevention' means switch alarming, uncovering power failure, uncovering locking and prevention of non-professional persons from unauthorized uncovering operation.

Especially gas and buggy are the main potential safety hazard in coal mine in the coal mining environment, and the oxygen content in the inside air of mine will guarantee not to be less than 20%, and the required oxygen content of far above gas explosion is not less than 12% and the required oxygen content of buggy explosion is not less than 18%, therefore current protection device still exists the hidden danger of explosion when taking place unexpected short circuit, consequently leads to a cascade probably to fear the consequence, for this reason, the utility model provides a can thoroughly eliminate the electric switch short-circuit protection device for coal mine of explosion hidden danger.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an electrical switch short-circuit protection device for coal mine has solved the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the short-circuit protection device for the electrical switch for the coal mine comprises a shell, wherein a sealing plate is hinged to the outer side surface of the shell through a rotating shaft, a viewing port is formed in the middle of the sealing plate, an oxygen sensor and a processor are fixedly mounted on the inner side wall of the shell, an oxygen removal bin is inserted into one side of the inner side wall of the shell in a plugging mode, a ventilation window is formed in one side surface of the oxygen removal bin, an cover plate is hinged to the outer surface of the ventilation window through a rotating shaft, a bin door is hinged to the other side surface of the oxygen removal bin through a rotating shaft, a clamping connector is fixedly connected to one side surface of the bin door, and.

Optionally, the locking pop-up mechanism includes the shell, the spliced eye has been seted up to the lateral surface of shell, the spacing slide rail of inside wall fixedly connected with of shell, the surface sliding connection of spacing slide rail has the locking slider, the Y shape guide way has been seted up to one side of locking slider upper surface, the opposite side of locking slider upper surface with the equal fixedly connected with joint post in one side of shell inside wall, two the upper end and the lower extreme of reset spring have been cup jointed respectively to the surface of joint post, one side of diapire rotates through the pivot in the shell and is connected with L shape locking pull rod, the one end sliding connection of L shape locking pull rod in the inside of Y shape guide way, a side fixedly connected with locking hook of locking slider, the lower fixed surface of locking slider is connected with and holds the piece.

Optionally, the lateral surface fixedly connected with slide rail of apron, the surface sliding connection of slide rail has the sliding block, the upper surface of sliding block articulates through the pivot has the movable rod, the one end of movable rod passes a side of shell and with the surface fixed connection who holds the splice block, spacing draw-in groove has been seted up to joint's surface, spacing draw-in groove with locking hook looks adaptation.

Optionally, the outer side surface of the sealing plate is fixedly connected with a rubber ring, one side of the outer side surface of the sealing plate is fixedly connected with a lock, the other side of the inner side wall of the shell is fixedly connected with a lock body, and the lock body is matched with the lock.

Optionally, the viewing aperture is a rectangular stepped window, the outer side of the inner side wall of the viewing aperture is fixedly connected with an explosion-proof net rack, and the inner side of the inner side wall of the viewing aperture is fixedly connected with explosion-proof glass.

Optionally, the type of oxygen sensor is O2-A2, the oxygen sensor with the treater passes through wire conductive connection, the inside in oxygen removal storehouse is equipped with the oxygen-eliminating agent, the inside of Y shape guide way is the echelonment.

(III) advantageous effects

The utility model provides an electrical switch short-circuit protection device for colliery possesses following beneficial effect:

1. the short-circuit protection device for the coal mine electric switch is characterized in that the oxygen sensor, the processor and the oxygen scavenger are arranged in a matched mode, the oxygen scavenger can absorb oxygen in air to enable the oxygen content in the device to be below the lowest critical point of explosion, when the oxygen sensor detects that the oxygen content in the device exceeds a set safety value, a signal is input into the processor through a conducting wire so as to remind a worker to replace or add the oxygen scavenger, the oxygen content in the coal mine electric switch short-circuit protection device is enabled to be always in a safe state, the explosion accident is prevented, a secondary sealing mechanism capable of being partially opened is formed in the shell through the matched arrangement of the oxygen removing bin and the locking pop-up mechanism, when a bin door is opened, the movable rod is pulled under the action of the locking pop-up mechanism to simultaneously close the cover plate, and the oxygen scavenger in the oxygen removing bin can be added or replaced, the cover plate is opened by pushing the movable rod under the action of the locking pop-up mechanism when the bin door is closed, so that air inside the deaerating bin and air inside the coal mine electric switch short-circuit protection device can circulate, and a deaerator can be replaced or added when the coal mine electric switch short-circuit protection device is guaranteed to be always in a sealing state during use, so that the purpose of sealing and dust prevention is achieved.

2. This electrical switch short-circuit protection device for coal mine, cooperation through explosion-proof glass and explosion-proof rack sets up, the cascaded viewing aperture of rectangle divides two-layer fixedly connected with explosion-proof glass and explosion-proof rack from inside to outside respectively, explosion-proof rack both can prevent to cause explosion-proof glass to damage because of accidental collision from the outside, can play the supporting role to explosion-proof glass again, can also make the staff observe this electrical switch short-circuit protection device for coal mine's internal aspect through the viewing aperture, thereby the effect of reinforcing security performance has been played, convenient to use's purpose has been reached.

Drawings

FIG. 1 is a schematic view of the main structure of the protection device of the present invention;

FIG. 2 is a schematic side sectional view of the sealing plate of the present invention;

FIG. 3 is a schematic view of the sectional structure of the oxygen removing chamber of the present invention;

FIG. 4 is a schematic structural view of the locking slider of the present invention;

FIG. 5 is a schematic view of the movement track of the L-shaped locking pull rod of the present invention;

fig. 6 is a schematic view of the closed structure of the locking ejection mechanism of the present invention;

fig. 7 is the utility model discloses the locking pop-up mechanism opens the structure sketch map.

In the figure: 1. a housing; 101. an oxygen sensor; 102. a processor; 2. a sealing plate; 201. a rubber ring; 3. a viewing port; 301. an explosion-proof net rack; 302. explosion-proof glass; 4. a lock head; 5. an oxygen removal bin; 501. a ventilation window; 502. a cover plate; 503. a slide rail; 504. a slider; 505. a movable rod; 506. a bin gate; 507. a clamping head; 508. a limiting clamping groove; 6. a lock body; 7. a locking ejection mechanism; 701. a housing; 702. inserting holes; 703. a limiting slide rail; 704. a locking slide block; 705. a Y-shaped guide groove; 706. a clamping column; 707. a return spring; 708. an L-shaped locking pull rod; 709. a locking hook; 710. a bearing block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 7, the present invention provides a technical solution: the short-circuit protection device for the electrical switch for the coal mine comprises a shell 1, wherein a sealing plate 2 is hinged to the outer side surface of the shell 1 through a rotating shaft, a rubber ring 201 is fixedly connected to the outer side surface of the sealing plate 2, an observation port 3 is formed in the middle of the sealing plate 2, the observation port 3 is a rectangular step-shaped window, an explosion-proof net rack 301 is fixedly connected to the outer side of the inner side wall of the observation port 3, explosion-proof glass 302 is fixedly connected to the inner side of the inner side wall of the observation port 3, the explosion-proof glass 302 and the explosion-proof net rack 301 are arranged in a matched mode, the rectangular step-shaped observation port 3 is divided into two layers, the explosion-proof glass 302 and the explosion-proof net rack 301 are fixedly connected from inside to outside, the explosion-proof net rack 301 can prevent the explosion-proof glass 302 from being damaged due to accidental, thereby playing a role of enhancing the safety performance, achieving the purpose of convenient use, one side of the outer side surface of the sealing plate 2 is fixedly connected with a lock 4, the other side of the inner side wall of the shell 1 is fixedly connected with a lock 6, the lock 6 is matched with the lock 4, the inner side wall of the shell 1 is fixedly provided with an oxygen sensor 101 and a processor 102, the model of the oxygen sensor 101 is O2-A2, the oxygen sensor 101 is electrically connected with the processor 102 through a lead, one side of the inner side wall of the shell 1 is inserted with an oxygen removal bin 5, the oxygen removal bin 5 is internally provided with an oxygen scavenger, the oxygen scavenger can be placed in a proper amount according to the size of the internal space of the device, two types of a fast reaction type and a slow reaction type can be placed simultaneously, the oxygen content of the fast reaction type oxygen scavenger in the internal air of the device is reduced in the shortest time, and, one of basic conditions of explosion accidents is removed, the safety of the interior of the device is ensured, through the matching arrangement of the oxygen sensor 101, the processor 102 and the oxygen scavenger, the oxygen scavenger can absorb oxygen in air to enable the oxygen content in the interior of the device to be below the lowest critical point of explosion, when the oxygen sensor 101 detects that the oxygen content in the interior of the device exceeds a set safety value, a signal is input into the processor 102 through a lead, so as to remind a worker to replace or add the oxygen scavenger, the oxygen content in the interior of the electrical switch short-circuit protection device for the coal mine is always in a safe state, the purpose of preventing explosion accidents is achieved, one side surface of the oxygen removal bin 5 is provided with a vent window 501, the outer surface of the vent window 501 is hinged with a cover plate 502 through a rotating shaft, the outer side surface of the cover plate 502 is fixedly connected with a sliding rail 503, the outer surface of the sliding, the upper surface of the sliding block 504 is hinged with a movable rod 505 through a rotating shaft, the other side surface of the oxygen removing bin 5 is hinged with a bin door 506 through a rotating shaft, one side surface of the bin door 506 is fixedly connected with a clamping joint 507, the outer surface of the clamping joint 507 is provided with a limit clamping groove 508, one side of the inner side wall of the oxygen removing bin 5 is fixedly connected with a locking ejection mechanism 7, the locking ejection mechanism 7 comprises a shell 701, the outer side surface of the shell 701 is provided with an insertion hole 702, the inner side wall of the shell 701 is fixedly connected with a limit sliding rail 703, the outer surface of the limit sliding rail 703 is slidably connected with a locking sliding block 704, one side of the upper surface of the locking sliding block 704 is provided with a Y-shaped guide groove 705, the inside of the Y-shaped guide groove 705 is in a ladder shape, the other side of the upper surface of the, one side of the bottom wall in the shell 701 is rotatably connected with an L-shaped locking pull rod 708 through a rotating shaft, one end of the L-shaped locking pull rod 708 is connected inside a Y-shaped guide groove 705 in a sliding mode, one side face of a locking sliding block 704 is fixedly connected with a locking hook 709, the locking hook 709 is matched with a limiting clamping groove 508, the lower surface of the locking sliding block 704 is fixedly connected with a bearing block 710, the outer surface of the bearing block 710 is fixedly connected with one end of a movable rod 505, a secondary sealing mechanism capable of being partially opened is formed inside the shell 1 through the matching arrangement of the oxygen removal bin 5 and the locking ejection mechanism 7, when the bin door 506 is opened, the movable rod 505 is pulled under the action of the locking ejection mechanism 7 to close the cover plate 502 at the same time, the oxygen remover in the oxygen removal bin 5 can be added or replaced, when the bin door 506 is closed, the movable rod 505 is pushed under the action of the locking ejection mechanism 7 to open the cover plate 502, so that the air in the oxygen removal, during use, the deoxidant can be replaced or added under the condition that the inside of the short-circuit protection device of the electrical switch for the coal mine is always in a sealed state, so that the purpose of sealing and dust prevention is achieved.

When in use, the sealing plate 2 is closed through the matching of the lock body 6 and the lock head 4, so that the coal mine electrical switch short-circuit protection device is in a sealing state, then the bin door 506 is pressed to push the receiving block 710 to slide downwards through the clamping joint 507, the receiving block 710 drives the locking sliding block 704 to slide, the sliding of the locking sliding block 704 acts on the return spring 707 and the movable rod 505, so that the return spring 707 extends to store energy, one end of the L-shaped locking pull rod 708 slides in the Y-shaped guide groove 705 (the motion direction refers to figure 5), the locking state of the locking hook 709 and the limiting clamping groove 508 is opened, the locking sliding block 704 moves upwards under the contraction action of the return spring 707, the movable rod 505 is pulled to close the cover plate 502 while the bin door 506 is opened, at the moment, the interior of the device is still in a sealing state, the deoxidant is placed in the oxygen removal bin 5, and the device can, meanwhile, a proper amount of fast reaction type and slow reaction type are placed, then the bin door 506 is closed, the clamping joint 507 pushes the bearing block 710 to slide downwards, the bearing block 710 drives the locking sliding block 704 to slide, the sliding of the locking sliding block 704 acts on the reset spring 707 and the movable rod 505, the reset spring 707 extends to store energy, one end of the L-shaped locking pull rod 708 slides inside the Y-shaped guide groove 705 (the moving direction refers to fig. 5), when the L-shaped locking pull rod moves to the forked notch of the Y-shaped guide groove 705, the L-shaped locking pull rod 705 is clamped under the contraction action of the reset spring 707, the movable rod 505 slides downwards to push the cover plate 502 open, air inside the oxygen removing bin 5 is enabled to be communicated with air inside the coal mine electric switch short-circuit protection device, and the inside of the coal mine electric switch short circuit protection device.

The utility model discloses a theory of operation and beneficial effect: the short-circuit protection device for the coal mine electric switch is characterized in that through the matching arrangement of the oxygen sensor 101, the processor 102 and the oxygen scavenger, the oxygen scavenger can absorb oxygen in air to enable the internal oxygen content of the device to be below the lowest critical point of explosion, when the oxygen sensor 101 detects that the internal oxygen content of the device exceeds a set safety value, a signal is input into the processor 102 through a conducting wire so as to remind a worker to replace or add the oxygen scavenger, the internal oxygen content of the short-circuit protection device for the coal mine electric switch is always in a safe state to achieve the purpose of preventing explosion accidents, through the matching arrangement of the oxygen removing bin 5 and the locking pop-up mechanism 7, a secondary sealing mechanism capable of being partially opened is formed inside the shell 1, when the bin door 506 is opened, the movable rod 505 is pulled under the action of the locking pop-up mechanism 7 to simultaneously close the cover plate 502, can add or change the deoxidant inside the deoxidization storehouse 5, promote the movable rod 505 to open the cover plate 502 under the effect of locking pop-up mechanism 7 while closing the door 506, make the air inside the deoxidization storehouse 5 circulate with the air inside the electrical switch short-circuit protection device for coal mine, can guarantee that the interior of the electrical switch short-circuit protection device for coal mine can be changed or added deoxidant under the sealing state all the time when using, has reached the purpose of sealing and dust-proof, through the cooperation arrangement of explosion-proof glass 302 and explosion-proof net rack 301, the rectangular step-shaped viewing aperture 3 is divided into two layers from inside to outside and fixedly connected with explosion-proof glass 302 and explosion-proof net rack 301 respectively, explosion-proof net rack 301 can prevent the explosion-proof glass 302 from damaging from outside because of accidental collision, can play a supporting role to explosion-proof glass 302, can also make the staff observe the internal situation of the electrical switch short-circuit protection device for coal mine through viewing aperture 3, thereby playing the role of enhancing the safety performance and achieving the purpose of convenient use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. Electrical switch short-circuit protection device for coal mine, including casing (1), its characterized in that: the oxygen removing device is characterized in that a sealing plate (2) is hinged to the outer side face of the shell (1) through a rotating shaft, an observation port (3) is formed in the middle of the sealing plate (2), an oxygen sensor (101) and a processor (102) are fixedly mounted on the inner side wall of the shell (1), an oxygen removing bin (5) is inserted into one side of the inner side wall of the shell (1), a ventilating window (501) is formed in one side of the oxygen removing bin (5), a cover plate (502) is hinged to the outer surface of the ventilating window (501) through the rotating shaft, a bin door (506) is hinged to the other side face of the oxygen removing bin (5) through the rotating shaft, a clamping head (507) is fixedly connected to one side of the inner side wall of the bin door (506), and a locking ejection.

2. The electrical switch short-circuit protection device for coal mines as set forth in claim 1, wherein: the locking ejection mechanism (7) comprises a shell (701), an insertion hole (702) is formed in the outer side face of the shell (701), a limiting slide rail (703) is fixedly connected to the inner side wall of the shell (701), a locking slide block (704) is connected to the outer surface of the limiting slide rail (703) in a sliding mode, a Y-shaped guide groove (705) is formed in one side of the upper surface of the locking slide block (704), clamping columns (706) are fixedly connected to the other side of the upper surface of the locking slide block (704) and one side of the inner side wall of the shell (701), the upper end and the lower end of a return spring (707) are sleeved on the outer surfaces of the two clamping columns (706) respectively, an L-shaped locking pull rod (708) is rotatably connected to one side of the inner bottom wall of the shell (701) through a rotating shaft, and one end of the L-shaped locking pull rod (, a side face of the locking sliding block (704) is fixedly connected with a locking hook (709), and the lower surface of the locking sliding block (704) is fixedly connected with a bearing block (710).

3. The electrical switch short-circuit protection device for coal mines as set forth in claim 2, wherein: lateral surface fixedly connected with slide rail (503) of apron (502), the surface sliding connection of slide rail (503) has sliding block (504), the upper surface of sliding block (504) articulates through the pivot has movable rod (505), the one end of movable rod (505) is passed the side of shell (701) and with the fixed surface of bearing block (710) is connected, spacing draw-in groove (508) have been seted up to the surface of joint (507), spacing draw-in groove (508) with locking hook (709) looks adaptation.

4. The electrical switch short-circuit protection device for coal mines as set forth in claim 1, wherein: the outer side face of the sealing plate (2) is fixedly connected with a rubber ring (201), one side of the outer side face of the sealing plate (2) is fixedly connected with a lock head (4), the other side of the inner side wall of the shell (1) is fixedly connected with a lock body (6), and the lock body (6) is matched with the lock head (4).

5. The electrical switch short-circuit protection device for coal mines as set forth in claim 1, wherein: viewing aperture (3) are the cascaded window of rectangle, the explosion-proof rack of outside fixedly connected with (301) of viewing aperture (3) inside wall, the explosion-proof glass of inboard fixedly connected with (302) of viewing aperture (3) inside wall.

6. The electrical switch short-circuit protection device for coal mines as set forth in claim 2, wherein: the oxygen sensor (101) is O2-A2 in model, the oxygen sensor (101) is in conductive connection with the processor (102) through a conducting wire, an oxygen scavenger is arranged in the oxygen removal bin (5), and the Y-shaped guide groove (705) is stepped.

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