Mining explosion-proof shell convenient to overhaul
By designing a combined structure of sliding columns and sliding plates, the complex and time-consuming problem of mining explosion-proof shell maintenance is solved, and the roof opening and stable wire connection is achieved, which improves maintenance efficiency and equipment operation stability.
Patent Information
- Application Number
- CN202422666612.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-11-01
AI Technical Summary
The existing mining explosion-proof shells are complicated to operate, time-consuming and labor-intensive during maintenance, and increase downtime.
A mining explosion-proof shell is designed for easy maintenance. Through a combined structure of sliding columns, sliding plates and strong springs, the top cover can be easily opened to avoid dismantling the bolts and nuts; at the same time, stable clamping of the wires is achieved through the cooperation of the threaded rod and the clamping block.
It greatly shortens the downtime of equipment, improves maintenance efficiency, and maintains the stability of electrical connections.
Smart Images
Figure CN223142299U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine explosion protection, in particular to a mine explosion-proof housing convenient for maintenance. Background Art
[0002] A mine explosion-proof housing is an electrical equipment housing specially designed for coal mines and other potentially explosive environments. Its main function is to prevent internal sparks or high temperatures from igniting combustible gases or dust in the external environment through an explosion-proof housing. The design and manufacture of this housing follow strict industrial standards to ensure safe operation under harsh conditions and protect internal electrical components. Regular inspection of the explosion-proof housing is a key measure to ensure its long-term safe operation. Through methods such as visual inspection, sealing test, and fastener inspection, problems such as cracks, deformation, and seal aging of the housing can be detected and repaired in a timely manner.
[0003] In the prior art, when maintaining some mine explosion-proof housings, the top cover usually needs to be opened to check the internal electrical components. When opening the top cover, most of them use tools to unscrew the bolts and nuts used to fix between the top cover and the housing, and then remove the top cover to check the internal electrical components. This not only has complex operations, but also is time-consuming and laborious, thereby increasing the overall downtime. Therefore, in view of the above deficiencies, a mine explosion-proof housing convenient for maintenance is proposed. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a mine explosion-proof housing convenient for maintenance, aiming to improve the problem that when disassembling between the top cover and the housing in the prior art, the operation is not only complex but also time-consuming and laborious, increasing the downtime.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A mine explosion-proof housing convenient for maintenance, including an assembly plate, the top end of the assembly plate is fixedly connected with a housing, a plurality of mounting holes are opened at the top end of the housing, the top end of the housing is detachably connected with a top cover, the top end of the top cover is fixedly connected with a supporting component, a sliding column is slidably connected inside the top cover, a receiving hole is opened inside the sliding column, a sliding plate is slidably connected inside the receiving hole, a pressing rod is fixedly connected inside the sliding plate, two first strong springs are sleeved outside the pressing rod, an expansion hole is opened at the bottom end outside the pressing rod, an expansion rod is fixedly connected at the bottom end of the sliding column, and two movable holes are opened outside the expansion rod, and a rolling ball is movably connected inside the movable hole.
[0007] Further, the supporting component includes a plurality of fixing blocks, the bottom ends of the plurality of fixing blocks are fixedly connected to the top end of the top cover, and a handle is rotatably connected to the top ends of every two fixing blocks.
[0008] Further, a plurality of connecting columns are fixedly connected to the front end of the housing. A threaded rod is threadedly connected to the inner part of the top end of the connecting column. A clamping block one is rotatably connected to the bottom end of the threaded rod. A sliding rod is slidably connected to the inner part of the bottom end of the connecting column. A second strong spring is sleeved on the outer part of the sliding rod. A clamping block two is fixedly connected to the top end of the sliding rod.
[0009] Further, the outer bottom end of the pressing rod is slidably connected to the inside of the expanding rod, and the outer part of the rolling ball is movably connected to the inside of the expanding hole.
[0010] Further, one end of the first strong spring is fixedly connected to one side inside the accommodating hole, and the other end of the first strong spring is fixedly connected to one side of the sliding plate.
[0011] Further, a pressing disc is fixedly connected to the top end of the pressing rod, and the outer part of the expanding rod is slidably connected to the inside of the mounting hole.
[0012] Further, the outer part of the rolling ball is in contact with the inside of the mounting hole.
[0013] Further, a rotating disc is fixedly connected to the top end of the threaded rod, and the bottom end of the clamping block one is in contact with the top end of the clamping block two.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, by pressing the pressing disc, the rolling ball has more moving space, and the sliding column connecting the top cover and the mounting hole can be taken out, which can easily open the top cover without disassembling complex fasteners or performing other cumbersome operation processes, and this can greatly shorten the downtime of the equipment.
[0016] 2. In the utility model, by screwing the threaded rod to drive the clamping block one to contact the clamping block two supported by the elastic force of the second strong spring, the wire can be clamped tightly, which can prevent the cable from loosening due to vibration during long-term use and maintain the long-term stability of the electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional view of a mine explosion-proof housing convenient for maintenance proposed by the utility model;
[0018] Figure 2 is a schematic structural view of an assembly plate of a mine explosion-proof housing convenient for maintenance proposed by the utility model;
[0019] Figure 3 Schematic diagram of the housing structure of a mine explosion-proof housing that is convenient for maintenance proposed by the present utility model;
[0020] Figure 4 Schematic diagram of the sliding column structure of a mine explosion-proof housing that is convenient for maintenance proposed by the present utility model.
[0021] Legend description:
[0022] 1. Assembly plate; 2. Housing; 3. Mounting hole; 4. Top cover; 5. Fixed block; 6. Handle; 7. Sliding column; 8. Accommodation hole; 9. Sliding plate; 10. Pushing rod; 11. Pressing disc; 12. First strong spring; 13. Expansion hole; 14. Expansion rod; 15. Moving hole; 16. Ball; 17. Connecting column; 18. Threaded rod; 19. Rotating disc; 20. First clamping block; 21. Sliding rod; 22. Second strong spring; 23. Second clamping block. Specific implementation manner
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] Referring to Figure 1 - Figure 3 , an embodiment provided by the present utility model: A mine explosion-proof housing that is convenient for maintenance includes an assembly plate 1. The top end of the assembly plate 1 is fixedly connected to a housing 2 to form a stable basic structure, ensuring the stability of the housing 2 in the mine environment. A plurality of mounting holes 3 are opened at the top end of the housing 2. The top end of the housing 2 is detachably connected to a top cover 4 to facilitate the operator to quickly open the top cover 4 for maintenance or replacement of internal components. The top end of the top cover 4 is fixedly connected to a support assembly. The support assembly includes a plurality of fixed blocks 5. The bottom ends of the plurality of fixed blocks 5 are fixedly connected to the top end of the top cover 4. The top ends of every two fixed blocks 5 are rotatably connected to a handle 6 to facilitate the operator to hold and rotate the handle 6 to realize the opening and closing of the top cover 4. A sliding column 7 is slidably connected inside the top cover 4 for connecting forces. An accommodation hole 8 is opened inside the sliding column 7 to provide additional accommodation space. A sliding plate 9 is slidably connected inside the accommodation hole 8;
[0025] Inside the sliding plate 9, a pressing rod 10 is fixedly connected for applying force. At the top end of the pressing rod 10, a pressing disc 11 is fixedly connected for convenient manual operation. Two first strong springs 12 are sleeved outside the pressing rod 10 to provide spring force and resilience. One end of the first strong spring 12 is fixedly connected to one side inside the receiving hole 8, and the other end of the first strong spring 12 is fixedly connected to one side of the sliding plate 9. An expansion hole 13 is formed at the bottom end outside the pressing rod 10. At the bottom end of the sliding column 7, an expansion rod 14 is fixedly connected. The outside of the expansion rod 14 is slidably connected inside the mounting hole 3. The bottom end outside the pressing rod 10 is slidably connected inside the expansion rod 14. Two moving holes 15 are formed in the outside of the expansion rod 14. Inside the moving holes 15, balls 16 are movably connected. This design enables the expansion hole 13 to contact the balls 16 when the pressing disc 11 is pressed, changing the positions of the balls 16. The outside of the balls 16 contacts the inside of the mounting hole 3, and the outside of the balls 16 is movably connected inside the expansion hole 13.
[0026] Refer to Figure 1 , Figure 2 and Figure 4 , at the front end of the housing 2, a plurality of connecting columns 17 are fixedly connected. Inside the top ends of the connecting columns 17, threaded rods 18 are threadedly connected. At the top ends of the threaded rods 18, rotating discs 19 are fixedly connected. When the operator rotates the rotating disc 19, the threaded rod 18 will rotate accordingly and move along the axial direction of the connecting column 17. At the bottom end of the threaded rod 18, a first clamping block 20 is rotatably connected, enabling the first clamping block 20 to move downward under the drive of the threaded rod 18 while maintaining a certain degree of freedom to adapt to the clamping requirements of different wires. Inside the bottom end of the connecting column 17, a sliding rod 21 is slidably connected. A second strong spring 22 is sleeved outside the sliding rod 21. At the top end of the sliding rod 21, a second clamping block 23 is fixedly connected. The second strong spring 22 provides the necessary resilience to ensure the pressure balance between the first clamping block 20 and the second clamping block 23 and the firm clamping of the wire. The bottom end of the first clamping block 20 contacts the top end of the second clamping block 23.
[0027] Working principle: Firstly, when it is necessary to separate the top cover 4 from the top end of the housing 2, press the pressing disc 11 first. The pressing of the pressing disc 11 will drive the pressing rod 10 to move downward. Then, under the movement of the pressing rod 10, the sliding plate 9 is driven to slide inside the receiving hole 8. Then, under the sliding of the sliding plate 9, the upper tension spring I 12 is stretched, and the bottom tension spring I 12 is contracted. Under the movement of the pressing rod 10, the expansion hole 13 is also driven to move, which causes a part of the pressing ball 16 to move downward, making the expansion hole 13 contact the ball 16, giving the ball 16 more movement space. Subsequently, the engaged part between the ball 16 and the inside of the top cover 4 slides into the movable hole 15, which makes the engaged part disappear, enabling the separation of the top cover 4 and the housing 2, realizing the rapid separation of the top cover 4 and the housing 2. The above two tension springs I 12 are respectively subjected to the stretching and contracting forces, and will respectively generate restoring elastic forces, which are used to keep a part of the ball 16 in the engaged state. When it is necessary to clamp the wire, first turn the rotating disc 19. The turning of the rotating disc 19 drives the threaded rod 18 to move. Then, under the rotation of the threaded rod 18, the clamping block I 20 is driven to move downward. Then, under the movement of the clamping block I 20, it contacts the clamping block II 23. Subsequently, the clamping block II 23 drives the sliding rod 21 to move downward, and then drives the tension spring II 22 to be stressed. This will generate an elastic force that is exactly opposite to the downward force of the clamping block I 20, realizing the opposite movement of the clamping block I 20 and the clamping block II 23, and achieving the clamping of the wire.
[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An explosion-proof housing for mining, which is convenient for maintenance, includes an assembly plate (1), and is characterized in that: The top end of the assembly plate (1) is fixedly connected to a housing (2). A plurality of mounting holes (3) are provided at the top end of the housing (2). The top end of the housing (2) is detachably connected to a top cover (4). A support assembly is fixedly connected to the top end of the top cover (4). A sliding column (7) is slidably connected inside the top cover (4). A receiving hole (8) is provided inside the sliding column (7). A sliding plate (9) is slidably connected inside the receiving hole (8). A pressing rod (10) is fixedly connected inside the sliding plate (9). Two first strong springs (12) are sleeved outside the pressing rod (10). An expansion hole (13) is provided at the bottom end outside the pressing rod (10). The bottom end of the sliding column (7) is fixedly connected to an expansion rod (14). Two moving holes (15) are provided outside the expansion rod (14). A rolling ball (16) is movably connected inside the moving hole (15).
2. The explosion-proof housing for mining use according to claim 1, characterized in that: The support assembly includes a plurality of fixing blocks (5). The bottom ends of the plurality of fixing blocks (5) are fixedly connected to the top end of the top cover (4). A handle (6) is rotatably connected to the top ends of every two fixing blocks (5).
3. The explosion-proof housing for mining use that is convenient for maintenance according to claim 1, wherein: A plurality of connecting columns (17) are fixedly connected to the front end of the housing (2). A threaded rod (18) is threadedly connected to the inside of the top end of the connecting column (17). A first clamping block (20) is rotatably connected to the bottom end of the threaded rod (18). A sliding rod (21) is slidably connected to the inside of the bottom end of the connecting column (17). A second strong spring (22) is sleeved outside the sliding rod (21). A second clamping block (23) is fixedly connected to the top end of the sliding rod (21).
4. A mine explosion-proof housing convenient for maintenance according to claim 1, characterized in that: The bottom end outside the pressing rod (10) is slidably connected to the inside of the expansion rod (14). The outside of the rolling ball (16) is movably connected to the inside of the expansion hole (13).
5. The explosion-proof housing for mining use that is convenient for maintenance according to claim 1, wherein: One end of the first strong spring (12) is fixedly connected to one side inside the receiving hole (8). The other end of the first strong spring (12) is fixedly connected to one side of the sliding plate (9).
6. The explosion-proof housing for mine use according to claim 1, characterized in that: A pressing disc (11) is fixedly connected to the top end of the pressing rod (10). The outside of the expansion rod (14) is slidably connected to the inside of the mounting hole (3).
7. A mine explosion-proof housing convenient for maintenance according to claim 1, characterized in that: The outside of the rolling ball (16) is in contact with the inside of the mounting hole (3).
8. The explosion-proof housing for mine use according to claim 3, characterized in that: A rotating disc (19) is fixedly connected to the top end of the threaded rod (18). The bottom end of the first clamping block (20) is in contact with the top end of the second clamping block (23).