Air leakage prevention device for coal mine
By designing a leak-proof device for coal mines, using the structure of support, baffle, tie rod and rope, the poor ventilation problems caused by air leakage during coal mining are solved, and the working environment and ventilation quality are improved. Effect.
Patent Information
- Application Number
- CN202421311570.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-11
AI Technical Summary
During coal mining, air leakage caused poor ventilation of mines, which affected workers' health and safety, and increased the complexity and waste of ventilation systems.
A leak-proof device for coal mines is designed, and the opening and closing of the baffle is realized through a combined structure of support, baffle, tie rod and draw rope to prevent air leakage.
It effectively prevents air leakage in the mine, improves the working environment, improves the ventilation quality of the mine, and reduces the occurrence of gas accidents.
Smart Images
Figure CN222513518U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mine machinery, in particular to an air leakage prevention device for coal mines. Background Art
[0002] In the coal mining industry, when raw coal is transported down the mountain from the coal mining working surface to the centralized belt, a leaky coal well or coal storage bin must be arranged. The existence of a leaky coal well or coal storage bin provides the possibility of air leakage inside the mine. Mine leakage is an important factor affecting mine ventilation. Due to the existence of air leakage, the effective air volume of the mine is reduced, resulting in insufficient air volume underground in the mine. At the same time, the ineffective power of the main ventilation fan in the mine is increased, resulting in a lot of waste. The hazards of mine leakage are as follows: 1) Air leakage reduces the air volume at the workplace, which will cause the accumulation of harmful gases, the increase of air temperature, and the deterioration of climatic conditions, which not only affects the labor efficiency of underground workers, but also affects the health of workers and mine safety; 2) The existence of air leakage complicates the mine ventilation system, reduces the stability and reliability of the ventilation system, and affects the control and regulation effect of underground airflow; 3) It may cause spontaneous combustion of coal, and the leakage of air volume in the surface collapse area will bring harmful gases in the goaf area into the underground, directly threatening the safe production of the mining working face. Therefore, a coal mine anti-leakage device is proposed. Summary of the invention
[0003] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a device for preventing air leakage in coal mines.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-air leakage device for coal mines, comprising a support body, one side of the support body is movably connected with a baffle through a pin structure, a block is arranged above the baffle, a pull rope is fixedly connected to the side of the baffle away from the pin structure, a rope loop is arranged on one side of the support body, the pull rope is passed through the inside of the rope loop, one end of the pull rope is fixedly connected to a pull rod, one side of the support body is fixedly connected to a pull rod sleeve for limiting the pull rod, connecting threads are arranged at both ends of the pull rod, a threaded hole is opened inside the pull rod sleeve, and both ends of the pull rod can be threadedly connected in the threaded hole.
[0005] Preferably, the pin structure includes a fixed cylinder fixed on the support body, and the pin structure also includes a pin fixed on the baffle, and the pin moves inside the fixed cylinder.
[0006] Preferably, there are two stoppers, which are respectively fixed on both sides of the inner wall of the support body.
[0007] Preferably, a spring is fixedly connected to the bottom of the support body, and a rubber pad is connected to one side of the spring.
[0008] Preferably, a pulley is provided at the bottom of the rope loop.
[0009] Preferably, one end of the pull rod is fixedly connected with a knob.
[0010] Preferably, the pull rod is thick at both ends and thin in the middle. Beneficial Effects
[0011] Compared with the prior art, the air leakage prevention device for coal mines has the following beneficial effects:
[0012] The utility model discloses to be able to pull the baffle plate to open and close by arranging a pull rod and a pull rope, thereby achieving the effect of preventing air leakage; and the device has a simple structure, low cost and is easy to use, thereby can better improve the working environment, improve the ventilation quality of the mine, fundamentally put an end to the funnel air leakage phenomenon, avoid the negative pressure effect, and reduce the occurrence of gas accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlargement at the center A;
[0015] Figure 3 This is a schematic diagram of the installation structure of the baffle of the utility model;
[0016] Figure 4 It is a structural schematic diagram of the pull rod of the utility model.
[0017] In the figure:
[0018] 1. Support body; 2. Baffle; 3. Block; 4. Pull rope; 5. Rope loop; 6. Pull rod; 7. Pull rod sleeve; 8. Spring; 9. Rubber pad; 10. Pulley; 11. Knob; 601. Connecting thread; 701. Threaded hole; 101. Fixing cylinder; 201. Pin shaft. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1 to Figure 4As shown, the utility model provides a technical solution: an anti-air leakage device for coal mines, comprising a support body 1, one side of the support body 1 is movably connected with a baffle 2 through a pin structure, a block 3 is arranged above the baffle 2, a side of the baffle 2 away from the pin structure is fixedly connected with a pull rope 4, one side of the support body 1 is provided with a rope loop 5, the pull rope 4 is inserted into the rope loop 5, one end of the pull rope 4 is fixedly connected with a pull rod 6, one side of the support body 1 is fixedly connected with a pull rod sleeve 7 for limiting the pull rod 6, connecting threads 601 are arranged at both ends of the pull rod 6, a threaded hole 701 is opened in the pull rod sleeve 7, both ends of the pull rod 6 can be threadedly connected in the threaded hole 701, by arranging the pull rod 6 and the pull rope 4, the baffle 2 can be pulled to open and close, so as to achieve the effect of preventing air leakage, and the device has a simple structure, low cost, and is easy to use, thereby can better improve the working environment, improve the ventilation quality of the mine, fundamentally prevent the occurrence of funnel leakage, avoid the negative pressure effect, and reduce the occurrence of gas accidents.
[0021] Please pay attention to Figure 3 The pin structure includes a fixed cylinder 101 fixed on the support body 1 , and the pin structure also includes a pin 201 fixed on the baffle 2 , and the pin 201 moves inside the fixed cylinder 101 .
[0022] Please pay attention to Figure 1 There are two stoppers 3, which are fixed on both sides of the inner wall of the support body 1 respectively. A spring 8 is fixedly connected to the bottom of the support body 1, and a rubber pad 9 is connected to one side of the spring 8. A pulley 10 is provided at the bottom of the rope loop 5, and a knob 11 is fixedly connected to one end of the pull rod 6. The pull rod 6 is thick at both ends and thin in the middle.
[0023] Working principle: The utility model is capable of pulling the baffle 2 to open and close by setting a pull rod 6 and a pull rope 4, thereby achieving the effect of preventing air leakage. The device has a simple structure, low cost, and is easy to use, which can better improve the working environment and improve the ventilation quality of mines, fundamentally eliminating the funnel leakage phenomenon, avoiding the negative pressure effect, and reducing the occurrence of gas accidents.
[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for preventing air leakage in a coal mine, comprising a support body (1), characterized in that: One side of the support body (1) is movably connected to a baffle (2) via a pin structure, a block (3) is arranged above the baffle (2), a draw rope (4) is fixedly connected to the side of the baffle (2) away from the pin structure, a rope loop (5) is arranged on one side of the support body (1), the draw rope (4) is inserted into the rope loop (5), one end of the draw rope (4) is fixedly connected to a draw rod (6), one side of the support body (1) is fixedly connected to a draw rod loop (7) for limiting the draw rod (6), both ends of the draw rod (6) are provided with connecting threads (601), a threaded hole (701) is provided inside the draw rod loop (7), and both ends of the draw rod (6) can be threadedly connected to the threaded hole (701).
2. The device for preventing air leakage in coal mines according to claim 1, characterized in that: The pin structure comprises a fixed cylinder (101) fixed on the support body (1), and the pin structure further comprises a pin (201) fixed on the baffle (2), wherein the pin (201) moves inside the fixed cylinder (101).
3. The device for preventing air leakage in coal mines according to claim 1, characterized in that: There are two stoppers (3), which are respectively fixed on two sides of the inner wall of the support body (1).
4. The device for preventing air leakage in coal mines according to claim 1, characterized in that: A spring (8) is fixedly connected to the bottom of the support body (1), and a rubber pad (9) is connected to one side of the spring (8).
5. The device for preventing air leakage in coal mines according to claim 1, characterized in that: A pulley (10) is provided at the bottom of the rope loop (5).
6. The device for preventing air leakage in coal mines according to claim 1, characterized in that: One end of the pull rod (6) is fixedly connected to a knob (11).
7. The device for preventing air leakage in coal mines according to claim 1, characterized in that: The pull rod (6) is thick at both ends and thin in the middle.