A mine explosion-proof power supply device

Abstract

The utility model relates to mine safety equipment technical field discloses a kind of mine explosion-proof power supply device, including power box, the upper portion of power box is fixedly connected with installation frame, the upper portion of installation frame is provided with quick-mounting mechanism;The quick-mounting mechanism includes the support plate contacted in the inside of installation frame, the upper portion of support plate is fixedly connected with cover plate, the inner wall of support plate is rotatably connected with rotating column, the lower portion of rotating column is hingedly connected with link plate, the side of link plate away from rotating column is hingedly connected with transverse plate, the inside bottom of support plate is provided with guide assembly, the upper portion of rotating column is fixedly connected with mounting plate, the inner wall of cover plate is provided with protection mechanism.In the utility model, rotating mounting plate drives rotating column, link plate linkage, cooperates guide assembly and guides the precision plug-in mounting frame of block, without aligning bolt hole one by one, avoid around large size box repeated operation, significantly save installation and maintenance time and manpower cost.

Description

Technical Field

[0001] This utility model relates to the field of mine safety equipment technology, and in particular to a mine explosion-proof power supply device. Background Technology

[0002] The explosion-proof power supply box for mining is a special electrical equipment for power distribution, control, and protection, suitable for flammable and explosive hazardous environments such as underground coal mines. Its core is designed and manufactured based on the explosion-proof principle. The outer shell of the box is made of high-strength metal materials, which have sufficient mechanical strength and sealing performance. When the electrical components inside the box generate arcs, sparks, or high temperatures due to faults, the outer shell can withstand the pressure generated by the explosion of the internal explosive gas mixture. At the same time, through structural parameters such as the gap and length of the explosion-proof joint surfaces between the various components of the outer shell, the propagation path of the explosion flame and high-temperature gas is extended and cooled, so that its energy is attenuated to the point that it is insufficient to ignite the flammable and explosive gas mixture outside the box.

[0003] In existing technologies, the installation structure of power box cover plates mostly uses bolt fastening. During installation and disassembly, multiple bolt holes need to be pre-set on the four sides of the cover plate. During installation, the bolt holes need to be aligned one by one and the bolts tightened. The operation steps are cumbersome. Especially when the power box is large, the operator needs to move around the box repeatedly to complete the installation of bolts in multiple positions, which consumes a lot of time and manpower. To address this issue, a mine explosion-proof power supply device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a mine explosion-proof power supply device, which aims to improve the existing power box cover bolt fastening structure, which is cumbersome to operate and requires repeated work around the box to install the large box, which is time-consuming and labor-intensive.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mine explosion-proof power supply device, including a power supply box, an installation frame fixedly connected to the upper part of the power supply box, and a quick-installation mechanism provided on the upper part of the installation frame;

[0006] The quick-installation mechanism includes a support plate that contacts the interior of the mounting frame. A cover plate is fixedly connected to the upper part of the support plate. A rotating column is rotatably connected to the inner wall of the support plate. A connecting plate is hinged to the lower part of the rotating column. A horizontal plate is hinged to the side of the connecting plate away from the rotating column. An insert block is fixedly connected to the side of the horizontal plate away from the connecting plate. A guide assembly is provided at the bottom inner side of the support plate. A mounting plate is fixedly connected to the upper part of the rotating column. A protective mechanism is provided on the inner wall of the cover plate.

[0007] As a further description of the above technical solution:

[0008] The guide assembly includes a fixing block fixedly connected to the bottom inner side of the support plate, and a telescopic rod fixedly connected to the inner wall of the fixing block. The side of the telescopic rod away from the rotating column is fixedly connected to the outer wall of the horizontal plate.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the insert block penetrates and is slidably connected to the inner wall of the support plate, and the side of the insert block away from the rotating column is inserted into the inner wall of the mounting frame.

[0011] As a further description of the above technical solution:

[0012] The mounting plate is internally connected to the inner wall of the cover plate by bolts.

[0013] As a further description of the above technical solution:

[0014] The upper part of the cover plate has a circular groove, the inner diameter of which is greater than the length of the mounting plate.

[0015] As a further description of the above technical solution:

[0016] The protective mechanism includes a connecting spring fixedly connected to the inner wall of the cover plate, a plug-in plate fixedly connected to the other end of the connecting spring, the outer wall of the plug-in plate penetrating and slidably connected to the inner wall of the cover plate, a moving block fixedly connected to the right side of the plug-in plate, a baffle fixedly connected to the side of the moving block away from the plug-in plate, the outer wall of the baffle penetrating and slidably connected to the inner wall of the cover plate, a protective plate in contact with the inside of the circular groove, a positioning block fixedly connected to the right side of the protective plate, the plug-in plate near the protective plate being inserted into the inner wall of the positioning block, the bottom of the positioning block being inserted into the upper part of the cover plate, a positioning post fixedly connected to the bottom of the protective plate, and the bottom of the positioning post being inserted into the inner wall of the cover plate.

[0017] As a further description of the above technical solution:

[0018] The plug plate has an inclined surface on the side facing the protective plate, and the inclined surface is set upwards.

[0019] As a further description of the above technical solution:

[0020] The upper part of the moving block has a square groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the rotating mounting plate drives the rotating column and connecting plate to move together, and the guide component guides the plug to accurately insert into the mounting frame. There is no need to align the bolt holes one by one, avoiding repeated work around the large-sized box, which significantly saves time and labor costs for installation and maintenance. Moreover, the anti-loosening bolt fixation ensures the connection stability under vibration environment.

[0023] 2. In this utility model, the protective plate seals the circular groove of the cover plate, which can effectively prevent mine dust and water from entering the quick-assembly mechanism, thus avoiding corrosion or jamming of the parts. The inclined design of the plug-in plate enables the protective plate to be quickly locked and easily disassembled. Combined with the elastic reset function of the connecting spring, it simplifies the operation and enhances the sealing of the explosion-proof cavity, making it suitable for harsh working conditions in mines. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a mine explosion-proof power supply device proposed in this utility model.

[0025] Figure 2 This is a schematic diagram showing the disassembled mounting frame and support plate of a mine explosion-proof power supply device proposed in this utility model.

[0026] Figure 3 This is a schematic diagram showing the disassembled cover plate and rotating column of a mine explosion-proof power supply device proposed in this utility model.

[0027] Figure 4 This is a schematic diagram showing the disassembled cover plate of a mine explosion-proof power supply device proposed in this utility model;

[0028] Figure 5 This is an enlarged structural diagram of point A of a mine explosion-proof power supply device proposed in this utility model.

[0029] Legend:

[0030] 1. Power supply box; 2. Mounting frame; 3. Quick-installation mechanism; 301. Support plate; 302. Cover plate; 303. Insert block; 304. Rotating column; 305. Connecting plate; 306. Guide assembly; 3061. Fixing block; 3062. Telescopic rod; 307. Horizontal plate; 308. Bolt; 309. Mounting plate; 4. Protective mechanism; 401. Protective plate; 402. Positioning block; 403. Positioning column; 404. Baffle; 405. Moving block; 406. Connecting spring; 407. Insert plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-2 This utility model provides an embodiment of a mine explosion-proof power supply device, including a power supply box 1. The power supply box 1 is integrally formed from cast aluminum alloy, which has excellent explosion-proof performance and can withstand the impact of explosions of flammable gases such as methane in mines. An installation frame 2 is fixedly connected to the upper part of the power supply box 1. The installation frame 2 is welded to the power supply box 1, and the connection surface adopts an explosion-proof joint surface design. A quick-installation mechanism 3 is provided on the upper part of the installation frame 2. The quick-installation mechanism 3 can realize the quick disassembly and assembly of the top cover of the power supply box 1, which facilitates the later inspection and maintenance of the internal components of the power supply box 1.

[0033] Reference Figures 2-3 The quick-installation mechanism 3 includes a support plate 301 that contacts the interior of the mounting frame 2. A cover plate 302 is fixedly connected to the upper part of the support plate 301. The support plate 301 is made of high-strength steel plate, which has strong load-bearing capacity and can provide stable support for the cover plate 302. The cover plate 302 is welded and fixed to the support plate 301, resulting in a stable structure. The cover plate 302 adopts an explosion-proof design and forms a complete explosion-proof cavity with the power supply box 1. A rotating column 304 is rotatably connected to the inner wall of the support plate 301. The rotating column 304 is made of stainless steel, which is rust-proof and rotates smoothly, making operation effortless. A connecting plate 305 is hinged to the lower part of the rotating column 304. A horizontal plate 307 is hinged to the side of the connecting plate 305 away from the rotating column 304. The connecting plate 305 can flexibly transmit the force of the rotating column 304. The horizontal plate 307 is telescopically extended. Wear-resistant bushings are provided at the hinge between the horizontal plate 307 and the connecting plate 305 to reduce wear and extend service life. A plug block 303 is fixedly connected to the side of the horizontal plate 307 away from the connecting plate 305. The two move along the same trajectory. A guide component 306 is provided on the bottom inner side of the support plate 301. The guide component 306 can provide precise guidance for the movement of the horizontal plate 307 and avoid deviation. An mounting plate 309 is fixedly connected to the upper part of the rotating column 304. The surface of the mounting plate 309 is provided with anti-slip texture to facilitate manual rotation of the rotating column 304 by the operator. A protective mechanism 4 is provided on the inner wall of the cover plate 302. The protective mechanism 4 can protect the operating parts of the quick-installation mechanism 3 to prevent dust and water from the mine from entering and affecting the operation of the mechanism.

[0034] Reference Figures 2-3The guide assembly 306 includes a fixing block 3061 fixedly connected to the bottom inner side of the support plate 301. A telescopic rod 3062 is fixedly connected to the inner wall of the fixing block 3061. The fixing block 3061 and the support plate 301 are an integrated structure with stable structure. The telescopic rod 3062 adopts a multi-stage telescopic structure with stable telescopic stroke, which can provide stable support for the horizontal plate 307. The side of the telescopic rod 3062 away from the rotating column 304 is fixedly connected to the outer wall of the horizontal plate 307. The two are fixed to ensure that the horizontal plate 307 moves in a straight line. The outer wall of the insert block 303 is penetrating and slidably connected to the inner wall of the support plate 301. The support plate 301 is provided with a guide hole that matches the insert block 303 to reduce sliding resistance. The side of the insert block 303 away from the rotating column 304 is inserted into the inner wall of the mounting frame 2. The quick fixation of the cover plate 302 is achieved through the insertion and cooperation of the insert block 303 and the mounting frame 2.

[0035] Furthermore, the interior of the mounting plate 309 is threadedly connected to the inner wall of the cover plate 302 by bolts 308. The bolts 308 are designed to prevent loosening, adapt to the vibration environment in the mine, and prevent loosening. A circular groove is provided on the upper part of the cover plate 302. The inner diameter of the circular groove is larger than the length of the mounting plate 309. The circular groove provides a space for the mounting plate 309, making the surface of the cover plate 302 flat. The larger diameter allows sufficient space for the rotation of the mounting plate 309 and avoids interference.

[0036] Reference Figures 4-5 The protective mechanism 4 includes a connecting spring 406 fixedly connected to the inner wall of the cover plate 302. A plug-in plate 407 is fixedly connected to the other end of the connecting spring 406. The connecting spring 406 is made of high-elasticity spring steel, with good deformation recovery, providing continuous elastic force to the plug-in plate 407. The plug-in plate 407 is made of wear-resistant engineering plastic, combining rigidity and toughness. The outer wall of the plug-in plate 407 penetrates and slides through the inner wall of the cover plate 302. A guide rail is provided on the cover plate 302 to ensure smooth sliding of the plug-in plate 407. A moving block 405 is fixedly connected to the right side of the plug-in plate 407. The moving block 405 and the plug-in plate 407 are an integrated structure, facilitating operation by the operator. The movable block 405 drives the plug-in plate 407 to move. A baffle 404 is fixedly connected to the side of the movable block 405 away from the plug-in plate 407. The baffle 404 reduces the entry of dust and provides protection for the movable block 405 while enhancing the sealing of the mechanism. The outer wall of the baffle 404 is slidably connected to the inner wall of the cover plate 302. The cover plate 302 provides stable sliding support for the baffle 404. A protective plate 401 is in contact with the inside of the circular groove. The protective plate 401 can completely cover the circular groove to prevent dust and water from entering. A positioning block 402 is fixedly connected to the right side of the protective plate 401. The positioning block 402 is welded and fixed to the protective plate 401, and the connection is firm.

[0037] Furthermore, the side of the plug-in plate 407 near the protective plate 401 is plugged into the inner wall of the positioning block 402, and the protective plate 401 is quickly fixed through the plug-in engagement. The bottom of the positioning block 402 is plugged into the upper part of the cover plate 302, which further improves the stability of the installation of the protective plate 401. The bottom of the protective plate 401 is fixedly connected to the positioning post 403, which can position and guide the protective plate 401 for easy and quick installation. The bottom of the positioning post 403 is plugged into the inner wall of the cover plate 302, and the plug-in setting ensures that the protective plate 401 is installed accurately.

[0038] Reference Figures 4-5 The plug plate 407 has an inclined surface on the side facing the protective plate 401. The inclined surface is set upwards. The inclined surface design makes it easy for the plug plate 407 to automatically avoid the protective plate 401 during installation, without manual operation, thus improving installation efficiency. The upward angle design of the inclined surface ensures that the plug plate 407 automatically resets and locks after the protective plate 401 is installed. The upper part of the moving block 405 has a square groove. The square groove makes it easy for the operator to pull the moving block 405 with their fingers, making the operation more convenient.

[0039] Working principle: When installing the cover plate 302, manually rotate the mounting plate 309, which drives the stainless steel rotating column 304 to rotate on the inner wall of the support plate 301. The rotating column 304 drives the horizontal plate 307 to move through the hinged connecting plate 305. The horizontal plate 307 maintains linear motion under the action of the guide assembly 306. The multi-stage telescopic rod 3062 on its inner wall provides stable support and guidance for the horizontal plate 307. Finally, the horizontal plate 307 drives the insert block 303 to pass through the guide hole of the support plate 301 and be inserted into the inner wall of the mounting frame 2. Then, the mounting plate 309 is fixed to the inner wall of the cover plate 302 with the anti-loosening bolt 308, realizing the rapid fixation of the cover plate 302 and the power box 1, forming a complete explosion-proof cavity.

[0040] Then, the support plate 301 is attached to the inside of the mounting frame 2, so that the quick-installation mechanism 3 is aligned with the installation position. Then, the protective plate 401 is placed over the circular groove on the upper part of the cover plate 302. When the protective plate 401 is pressed, the positioning block 402 on its right side presses the inclined surface of the plug plate 407 in the protective mechanism 4, pushing the plug plate 407 to slide along the guide rail of the cover plate 302 and compressing the connecting spring 406. When the positioning post 403 at the bottom of the protective plate 401 is inserted into the inner wall of the cover plate 302 and the bottom of the positioning block 402 is attached to the upper part of the cover plate 302, the connecting spring 406 elastically resets and drives the plug plate 407 to insert into the inner wall of the positioning block 402, completing the automatic locking of the protective plate 401 and realizing the sealing protection of the operating part of the quick-installation mechanism 3 in the circular groove.

[0041] When it is necessary to inspect the internal components of the power supply box 1, first pull the moving block 405 through the square groove on the upper part of the moving block 405, so that the baffle 404 and the plug plate 407 slide synchronously, so that the plug plate 407 is separated from the positioning block 402, remove the protective plate 401 to expose the mounting plate 309, loosen the bolt 308 and rotate the mounting plate 309 in the opposite direction, so that the horizontal plate 307 is retracted through the rotating column 304 and the connecting plate 305, so that the plug 303 is separated from the mounting frame 2, and the cover plate 302 can be quickly removed for inspection.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mine explosion-proof power supply device, comprising a power supply box (1), characterized in that: The upper part of the power supply box (1) is fixedly connected to the mounting frame (2), and the upper part of the mounting frame (2) is provided with a quick-installation mechanism (3); The quick-installation mechanism (3) includes a support plate (301) that contacts the interior of the mounting frame (2). A cover plate (302) is fixedly connected to the upper part of the support plate (301). A rotating column (304) is rotatably connected to the inner wall of the support plate (301). A connecting plate (305) is hinged to the lower part of the rotating column (304). A horizontal plate (307) is hinged to the side of the connecting plate (305) away from the rotating column (304). An insert block (303) is fixedly connected to the side of the horizontal plate (307) away from the connecting plate (305). A guide assembly (306) is provided at the bottom inner side of the support plate (301). An mounting plate (309) is fixedly connected to the upper part of the rotating column (304). A protective mechanism (4) is provided on the inner wall of the cover plate (302).

2. The explosion-proof power supply device for mining according to claim 1, characterized in that: The guide assembly (306) includes a fixing block (3061) fixedly connected to the bottom inner side of the support plate (301), and a telescopic rod (3062) fixedly connected to the inner wall of the fixing block (3061). The side of the telescopic rod (3062) away from the rotating column (304) is fixedly connected to the outer wall of the horizontal plate (307).

3. The explosion-proof power supply device for mining according to claim 1, characterized in that: The outer wall of the insert (303) is slidably connected to the inner wall of the support plate (301), and the side of the insert (303) away from the rotating column (304) is inserted into the inner wall of the mounting frame (2).

4. The explosion-proof power supply device for mining according to claim 1, characterized in that: The interior of the mounting plate (309) is threadedly connected to the inner wall of the cover plate (302) by bolts (308).

5. A mine explosion-proof power supply device according to claim 1, characterized in that: The upper part of the cover plate (302) is provided with a circular groove, the inner diameter of which is greater than the length of the mounting plate (309).

6. A mine explosion-proof power supply device according to claim 1, characterized in that: The protective mechanism (4) includes a connecting spring (406) fixedly connected to the inner wall of the cover plate (302). The other end of the connecting spring (406) is fixedly connected to a plug plate (407). The outer wall of the plug plate (407) is slidably connected to the inner wall of the cover plate (302). A moving block (405) is fixedly connected to the right side of the plug plate (407). A baffle (404) is fixedly connected to the side of the moving block (405) away from the plug plate (407). The outer wall of the baffle (404) is slidably connected to the baffle. A protective plate (401) is in contact with the inner wall of the cover plate (302). A positioning block (402) is fixedly connected to the right side of the protective plate (401). The side of the plug-in plate (407) near the protective plate (401) is inserted into the inner wall of the positioning block (402). The bottom of the positioning block (402) is inserted into the upper part of the cover plate (302). A positioning post (403) is fixedly connected to the bottom of the protective plate (401). The bottom of the positioning post (403) is inserted into the inner wall of the cover plate (302).

7. A mine explosion-proof power supply device according to claim 6, characterized in that: The plug plate (407) has an inclined surface on the side facing the protective plate (401), and the inclined surface is set upward.

8. A mine explosion-proof power supply device according to claim 6, characterized in that: The upper part of the movable block (405) is provided with a square groove.

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