Mining explosion-proof power supply

Abstract

The utility model relates to the technical field of flame-proof power supplies, in particular to a mining flame-proof power supply, which comprises a box body, a cover plate is arranged on the top surface of the box body, fixing mechanisms used for fixing the cover plate on the box body are arranged on two opposite side surfaces of the box body, each fixing mechanism comprises a moving assembly, a clamping assembly is arranged in each moving assembly, and the clamping assemblies are arranged on the box body. And the moving assembly comprises two second rectangular frames which are symmetrical and fixed to the box body, a screw rod is rotationally connected between the side faces of the two short edges in each second rectangular frame, a sliding block is connected to the outer wall of each screw rod in a screwed mode, a rotating base is fixedly connected to one side face of each sliding block, and first rectangular frames are fixedly connected to the two sides of the top face of the cover plate correspondingly. According to the utility model, the L-shaped plate is rotated while the L-shaped plate is driven to move by the moving assembly, so that the cover plate can be fixed on the box body, the complexity caused by bolt fixation can be avoided, the efficiency of mounting and fixing the cover plate can be reduced, and the condition of bolt slippage does not need to be worried about.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof power supplies, in particular to a mine-used explosion-proof power supply. Background Art

[0002] A mining-grade flameproof power supply is a specially designed power supply primarily used in coal mines and other underground or surface mining areas where flammable gases or dust may be present. This flameproof power supply prevents the energy generated during normal operation or fault conditions from igniting explosive gas mixtures in the surrounding environment. It provides essential power support for monitoring and communication systems, emergency shelters, and underground transport vehicles.

[0003] When currently used, the existing flameproof power supply is usually placed in a flameproof box, which is then sealed in the box with multiple bolts. Since bolting is time-consuming, it will seriously delay the installation of the flameproof power supply. In addition, the bolts may slip, resulting in the cover of the flameproof box not being able to be sealed with the flameproof box, thereby weakening the explosion-proof function of the flameproof box. Utility Model Content

[0004] The purpose of the present utility model is to provide a flameproof power supply for mining, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A mining explosion-proof power supply comprises a box body, a cover plate is provided on the top surface of the box body, and fixing mechanisms for fixing the cover plate to the box body are provided on two opposite side surfaces of the box body, the fixing mechanism comprises a moving component, a clamping component is provided in the moving component, the moving component comprises two symmetrical rectangular frames 2 fixed to the box body, a screw is rotatably connected between the two short side surfaces inside the rectangular frame 2, a slider is screwedly connected to the outer wall of the screw, one side of the slider is fixedly connected to a rotating seat, and both sides of the top surface of the cover plate are fixedly connected to a rectangular frame 1, the clamping component comprises an L-shaped plate that rotates between the two rotating seats at corresponding positions, and one end of the L-shaped plate is fixedly connected to a clamping plate clamped in the rectangular frame 1 at the corresponding position.

[0007] Furthermore, two parallel L-shaped blocks are fixedly connected to the two ends of the two opposite side surfaces of the box body, the two L-shaped blocks at relative positions are staggered and have different heights, and the opposite ends of the two L-shaped blocks at relative positions are fixedly connected with a rack, and the bottom end of the inner side surface of the L-shaped plate is fixedly connected with a rotating block that rotates in the rotating seat at the corresponding position, and a rotating shaft that rotates through the rotating seat at the corresponding position is fixed through one side surface of the rotating block, and one-way bearings are provided at both ends of the outer wall of the rotating shaft, and a gear that meshes with the rack at the corresponding position is fixed to the outer wall of the one-way bearing.

[0008] Furthermore, both ends of the outer wall of the rotating shaft are provided with a plurality of cylindrical grooves at equal angles, a spring steel ball is fixedly connected to the inside of the cylindrical groove, and the inner wall of the one-way bearing is provided with a plurality of hemispherical grooves at equal angles for engaging with the spring steel balls at corresponding positions, and both ends of the outer wall of the rotating shaft are fixedly connected with two limit rings that contact the one-way bearings at corresponding positions.

[0009] Furthermore, both ends of the two opposing side surfaces of the box are fixedly connected with a fixing plate 1, the inner side surface of the L-shaped plate is fixedly connected with a fixing plate 2 corresponding to a fixing plate 1, and magnets are embedded and fixed on the side opposite to the fixing plate 1 and the fixing plate 2 at the corresponding position, and the two magnets at the relative positions attract each other.

[0010] Furthermore, fixed blocks are fixedly connected on both sides of the bottom ends of the two opposite side surfaces of the box body, the bottom end of the screw passes through the bottom surface of the rectangular frame 2 at the corresponding position and is fixedly connected to the worm gear, and the opposite sides of the two fixed blocks on the same side of the box body are rotatably connected to the worm gears meshing with the worm gears at the corresponding positions, and a connecting rod is fixedly connected between the two worm gears at the relative positions.

[0011] Furthermore, one end of one of the worms on the same side of the box body passes through the fixed block at the corresponding position and is fixedly connected to a pulley, the two pulleys are driven by a belt, and one end of the worm at the corresponding pulley is fixedly connected to a twisting block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By moving the L-shaped plate by moving the assembly and rotating the L-shaped plate at the same time, the cover plate can be fixed on the box body, which can avoid the tediousness caused by bolt fixing, reduce the efficiency of cover plate installation and fixation, and there is no need to worry about bolt slippage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the box in the utility model;

[0016] Figure 3 It is an enlarged view of point A in the present utility model;

[0017] Figure 4 This is a schematic diagram of the fixing mechanism structure in the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the mobile component in the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the clamping assembly in the utility model;

[0020] Figure 7 It is an enlarged view of point B in the present utility model.

[0021] In the figure: 1. Box body; 11. L-shaped block; 12. Rack; 13. Fixed plate 1; 14. Fixed block; 2. Cover plate; 21. Rectangular frame 1; 3. Fixing mechanism; 31. Moving assembly; 311. Rectangular frame 2; 312. Screw; 313. Slider; 314. Rotating seat; 315. Worm gear; 316. Worm; 317. Connecting rod; 318. Pulley; 319. Twist block; 32. Snap assembly; 321. L-shaped plate; 322. Clamping plate; 323. Rotating block; 324. Rotating shaft; 325. One-way bearing; 326. Gear; 327. Fixed plate 2; 328. Limiting ring. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 7The cam 32 is a kind of cam which is fixed on the cam 32 of the cam 32 and is fixed on the cam 32 of the cam 32.

[0024] Specifically, first put the power supply into the box body 1, then cover the opening of the box body 1 with the cover plate 2, and then move the L-shaped plate 321 by rotating the four screws 312 at the same time. When the L-shaped plate 321 moves to the appropriate position (the card plate 322 is higher than the height of the rectangular frame 21), the card plate 322 is turned downward by rotating the L-shaped plate 321, and then the screw 312 is rotated to make the L-shaped plate 321 drive the card plate 322 at the corresponding position to move downward until the card plate 322 is inserted into the rectangular frame 21 at the corresponding position. At this time, the cover plate 2 can be fixed on the box body 1, which can avoid the tediousness caused by bolt fixing, reduce the efficiency of installing and fixing the cover plate 2, and do not have to worry about the bolts slipping.

[0025] Example 1

[0026] like Figure 6 and Figure 7As shown, in this embodiment, two parallel L-shaped blocks 11 are fixedly connected to both ends of the two opposite sides of the box body 1. The two L-shaped blocks 11 at relative positions are staggered and have different heights. The opposite ends of the two L-shaped blocks 11 at relative positions are fixedly connected to the rack 12. The bottom end of the inner side surface of the L-shaped plate 321 is fixedly connected to a rotating block 323 that rotates in the rotating seat 314 at the corresponding position. A rotating shaft 324 that rotates through the rotating seat 314 at the corresponding position is fixed on one side of the rotating block 323. One-way bearings 325 are provided at both ends of the outer wall of the rotating shaft 324. A gear 326 that meshes with the rack 12 at the corresponding position is fixed to the outer wall of the one-way bearing 325. Both ends of the outer wall of the rotating shaft 324 are provided with multiple cylindrical grooves at equal angles in an annular manner, and spring steel balls are fixedly connected inside the cylindrical grooves. The inner wall of the one-way bearing 325 is provided with multiple hemispherical grooves at equal angles in an annular manner that engage with the spring steel balls at corresponding positions. Both ends of the outer wall of the rotating shaft 324 are fixedly connected with two limit rings 328 that contact the one-way bearings 325 at corresponding positions. The two ends of the two opposite side surfaces of the box body 1 are fixedly connected with fixed plates 13, and the inner surface of the L-shaped plate 321 is fixedly connected with fixed plate 2 327 at the corresponding position of fixed plate 13. The side opposite to the fixed plate 2 327 at the corresponding position of the fixed plate 13 is embedded with magnets, and the two magnets at relative positions attract each other.

[0027] In this embodiment, when the cover plate 2 needs to be fixed on the box body 1, the L-shaped plate 321 can be moved up by rotating the screw rod 312, and the upward L-shaped plate 321 drives the four gears 326 at the corresponding positions to move up. When one of the gears 326 at the same rotating block 323 is engaged with the rack 12 at the corresponding position, the L-shaped plate 321 can be rotated until the fixing plate 13 is in contact with the fixing plate 2 327 at the corresponding position, and the fixing plate 13 and the magnets at the fixing plate 2 327 at the corresponding position are attracted to each other. At this time, the clamping plate 322 is facing downward and aligned with the corresponding The rectangular frame 121 at the position, and at this time the gear 326 is still engaged with the rack 12 at the corresponding position. When the L-shaped plate 321 continues to move upward, the L-shaped plate 321 is in contact with the fixed plate 2 327 at the corresponding position and the fixed plate 13 at the corresponding position. The L-shaped plate 321 is restricted from rotating, and the gear 326 is idling under the action of the spring steel ball and the hemispherical groove. When the gear 326 is disengaged from the rack 12 at the corresponding position, the L-shaped plate 321 drives the card plate 322 to move downward. At this time, the gear 326 is engaged with the one-way bearing 325 at the corresponding position. The L-shaped plate 321 is kept in an upright position by the action of the magnet, the spring steel ball and the hemisphere until the card plate 322 is inserted into the rectangular frame 1 21 at the corresponding position. At this time, the cover plate 2 can be fixed on the box body 1. When the cover plate 2 needs to be removed, the L-shaped plate 321 is moved upward. Since the L-shaped plate 321 is restricted by the fixing plate 1 13 and the fixing plate 2 327, the gear 326 can only rotate idly and cannot drive the L-shaped plate 321 to rotate. When the L-shaped plate 321 moves up to a higher position, the other gear 326 at the relative position is engaged with the L-shaped plate 321. The rack 12 at the corresponding position is engaged. Due to the action of the one-way bearing 325, when the L-shaped plate 321 moves up, the other gear 326 idles under the action of the one-way bearing 325 at the corresponding position. When the L-shaped plate 321 moves up to a suitable height, the L-shaped plate 321 is moved down. At this time, the rotation of the other gear 326 can drive the L-shaped plate 321 to reverse, so that the card plate 322 is disengaged from the rectangular frame 1 21 at the corresponding position, until the L-shaped plate 321 moves to the bottom end of the rectangular frame 2 311 at the corresponding position. At this time, the cover plate 2 can be removed from the box body 1.

[0028] Example 2

[0029] like Figure 5As shown, in this embodiment, both sides of the bottom ends of the two opposite side surfaces of the box body 1 are fixedly connected with fixed blocks 14, the bottom end of the screw 312 passes through the bottom surface of the rectangular frame 311 at the corresponding position and is fixedly connected to the worm gear 315, and the opposite sides of the two fixed blocks 14 on the same side of the box body 1 are rotatably connected to the worm 316 engaged with the worm gear 315 at the corresponding position, and a connecting rod 317 is fixedly connected between the two worm gears 316 at the relative positions, and one end of one of the worm gears 316 on the same side of the box body 1 passes through the fixed block 14 at the corresponding position and is fixedly connected to the pulley 318, and the two pulleys 318 are driven by a belt, and one end of the worm gear 316 at the corresponding pulley 318 is fixedly connected to the screw block 319.

[0030] In this embodiment, the four worms 316 can be rotated simultaneously by rotating one of the screw blocks 319. The rotating worm 316 can rotate the worm wheel 315 at the corresponding position. The rotating worm wheel 315 can rotate the screw 312 at the corresponding position, so that the slider 313 can slide in the rectangular frame 311 at the corresponding position, thereby driving the L-shaped plate 321 to slide, thereby facilitating the fixing of the cover plate 2 on the box body 1 or removing the cover plate 2 from the box body 1.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A flameproof power supply for mining, characterized in that: The invention comprises a box body (1), wherein a cover plate (2) is provided on the top surface of the box body (1), and fixing mechanisms (3) for fixing the cover plate (2) on the box body (1) are provided on two opposite side surfaces of the box body (1), wherein the fixing mechanism (3) comprises a moving component (31), wherein a snap-fit ​​component (32) is provided inside the moving component (31), and wherein the moving component (31) comprises two symmetrical rectangular frames (311) fixed to the box body (1), wherein two short side surfaces inside the rectangular frame (311) are rotatably connected to each other. A screw rod (312) is provided, the outer wall of the screw rod (312) is screwedly connected to a slider (313), one side of the slider (313) is fixedly connected to a rotating seat (314), both sides of the top surface of the cover plate (2) are fixedly connected to a rectangular frame (21), the clamping assembly (32) includes an L-shaped plate (321) that rotates between two rotating seats (314) at corresponding positions, and one end of the L-shaped plate (321) is fixedly connected to a clamping plate (322) that is clamped inside the rectangular frame (21) at the corresponding position.

2. A mine flameproof power supply according to claim 1, characterized in that: Two parallel L-shaped blocks (11) are fixedly connected to both ends of the two opposite side surfaces of the box body (1), the two L-shaped blocks (11) at relative positions are staggered and have different heights, and the opposite ends of the two L-shaped blocks (11) at relative positions are fixedly connected to a rack (12), the bottom end of the inner side surface of the L-shaped plate (321) is fixedly connected to a rotating block (323) that rotates in the rotating seat (314) at the corresponding position, a rotating shaft (324) that rotates through the rotating seat (314) at the corresponding position is fixed through one side surface of the rotating block (323), and one-way bearings (325) are provided at both ends of the outer wall of the rotating shaft (324), and a gear (326) that meshes with the rack (12) at the corresponding position is fixed to the outer wall of the one-way bearing (325).

3. A mine flameproof power supply according to claim 2, characterized in that: A plurality of cylindrical grooves are formed at equal angles in an annular manner at both ends of the outer wall of the rotating shaft (324), and spring steel balls are fixedly connected to the interior of the cylindrical grooves. A plurality of hemispherical grooves are formed at equal angles in an annular manner on the inner wall of the one-way bearing (325) for engaging with the spring steel balls at corresponding positions. Two limiting rings (328) are fixedly connected to both ends of the outer wall of the rotating shaft (324) for contacting the one-way bearing (325) at corresponding positions.

4. A mine flameproof power supply according to claim 3, characterized in that: The two ends of the two opposite side surfaces of the box body (1) are fixedly connected with a fixing plate 1 (13), and the inner side surface of the L-shaped plate (321) is fixedly connected with a fixing plate 2 (327) corresponding to the fixing plate 1 (13). The side opposite to the fixing plate 1 (13) and the fixing plate 2 (327) at the corresponding position are both embedded with magnets, and the two magnets at the relative positions attract each other.

5. A mine flameproof power supply according to claim 4, characterized in that: The bottom ends of the two opposite side surfaces of the box body (1) are fixedly connected to fixed blocks (14), the bottom end of the screw (312) passes through the bottom surface of the second rectangular frame (311) at the corresponding position and is fixedly connected to a worm gear (315), and the opposite side surfaces of the two fixed blocks (14) on the same side of the box body (1) are rotatably connected to worm gears (316) meshing with the worm gears (315) at the corresponding positions, and a connecting rod (317) is fixedly connected between the two worm gears (316) at the opposite positions.

6. A mine flameproof power supply according to claim 5, characterized in that: One end of one of the worms (316) on the same side of the box (1) passes through a fixed block (14) at a corresponding position and is fixedly connected to a pulley (318); a belt is driven between the two pulleys (318); and one end of the worm (316) at the corresponding pulley (318) is fixedly connected to a twisting block (319).

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