CN113074016B - Shock wave resistant coal mine protection device with efficient pressure relief function - Google Patents

Abstract

The invention discloses an anti-shock wave type coal mine protection device for high-efficiency pressure relief. A filter and purification port for ventilating and filtering harmful substances is opened at an upper angle; the sleeve cover is fitted and connected to the top outside of the explosion-proof cover, and the cover is correspondingly provided with a vent for pressure relief, and the sleeve cover The bottom of the shaft is connected to the space formed by the installation groove; the ring plate is movably connected to the inner bottom of the mine air outlet; the longitudinal threaded rod is connected to the bottom of the explosion-proof cover on the axis of symmetry, and the longitudinal threaded rod passes through the bevel teeth The connector is connected with a transverse threaded rod. The high-efficiency pressure relief anti-shock wave type coal mine protection device can perform rapid pressure relief, can filter air and sundries, clean the filtered sundries, and automatically reset after cleaning.

Description

A high-efficiency pressure relief anti-shock wave type coal mine protection device

technical field

The invention relates to the technical field of coal mine protection devices, in particular to an anti-shock wave type coal mine protection device for high-efficiency pressure relief.

Background technique

When excavating the coal mine in the mine, there will be some explosive materials and materials in the mine. In order to prevent accidents, an efficient pressure relief anti-shock wave coal mine protection device will be installed at the vent of the mine. However, now Some high-efficiency pressure relief anti-shock wave coal mine protection devices have the following problems:

Notification number CN212716722U discloses a safety explosion-proof device for coal mine ventilation, which relies on wind power to drive the device, which is energy-saving and environmentally friendly, and can filter the air. However, it is inconvenient to clean up filtered sundries during use, and it is inconvenient to automatically reset after cleaning.

Therefore, we propose a high-efficiency pressure relief anti-shock wave coal mine protection device in order to solve the above-mentioned problems.

Contents of the invention

The object of the present invention is to provide a kind of high-efficiency pressure relief anti-shock wave type coal mine protection device, to solve the problem that the existing high-efficiency pressure relief anti-shock wave type coal mine protection device on the market proposed by the above-mentioned background technology is not convenient for filtering the sundries Clean up, and automatically reset after cleaning.

In order to achieve the above object, the present invention provides the following technical solutions: a high-efficiency pressure relief anti-shock wave coal mine protection device, including a mine air outlet, which is set on the bottom of the mine area, and the top of the mine air outlet is nested and connected with a Protective explosion-proof cover, and filter purification ports for ventilation and filtering harmful substances are opened at equal angles on the explosion-proof cover;

The sleeve cover is fitted and connected to the top outside of the explosion-proof cover, and the cover is correspondingly provided with a vent for pressure relief, and the bottom of the cover is connected to the space formed by the installation groove, and the installation groove is opened in the top of the mine vent;

The ring plate is movably connected to the inner bottom of the mine air outlet, and fits the inner wall of the mine air outlet;

A longitudinal threaded rod, the axis of symmetry is connected to the bottom of the explosion-proof cover, and the longitudinal threaded rod is connected with a transverse threaded rod through a bevel tooth connector, and the transverse threaded rod is symmetrically arranged at the bottom of the explosion-proof cover, and the transverse threaded rod is installed through the The sleeve rod is connected to the side wall of the explosion-proof cover.

Preferably, a connecting rod is fixedly installed on the end of the ring plate, and the connecting rod is connected in the space formed by the vertical groove, and the vertical groove is symmetrically opened on the side wall of the mine air outlet, and the connecting rod The top is fixed with the first pull rope for connection, and the top of the first pull rope is wound on the helical toothed roller. The top, and the first torsion spring for reset is connected between the helical tooth roller and the installation groove, and the top of the helical tooth roller is connected with special-shaped convex teeth meshing with it, and the special-shaped convex teeth are equiangularly distributed on the cover. bottom, so that when the ring plate moves up, it will synchronously drive the connecting rod to move in the vertical groove, and then relax the first pull rope, and the first torsion spring on the helical tooth roller will rotate, and then drive the helical tooth roller Rotating, the helical toothed roller will mesh with the special-shaped convex teeth, thereby driving the cover to rotate in the installation groove.

Preferably, the helical-toothed roller forms a reciprocating rotation structure with the installation groove through the action of the first pull cord and the first torsion spring, and the engagement between the helical-toothed roller and the special-shaped convex teeth drives the cover to rotate in the installation groove, so that the first The tightening and loosening of the pull cord will drive the first torsion spring to reverse and reset, and then drive the helical gear roller to reciprocate, thereby driving the cover to rotate and reset.

Preferably, the number and position of the filter and purification openings on the explosion-proof cover correspond to the number and position of the ventilation openings on the sleeve cover, and the rotation of the sleeve cover drives the filtration and purification ports to coincide with the ventilation openings, so that the sleeve cover is on the explosion-proof cover. After rotating, the air vent and the filter purification port provided on the explosion-proof cover will be punched, and then the high pressure will be unloaded.

Preferably, the top left side of the circular ring plate is fixed with a second stay cord, and the top of the second stay cord is wound on the end of the longitudinal threaded rod, and the rear end of the longitudinal threaded rod is connected to the side of the explosion-proof cover. A second torsion spring is connected between the walls, and the middle part of the longitudinal threaded rod and the middle part of the transverse threaded rod connected by the bevel tooth connector are threaded with a cleaning brush, and the outer side of the cleaning brush is fixed with a limit rod to prevent rotation , the top of the limit rod is connected to the limit groove, and the limit groove is opened at the bottom of the explosion-proof cover, and the limit groove is located on both sides of the filter and purification port, and the position of the filter and purification port is the same as that of the cleaning brush. Correspondingly, after the ring plate is moved, the second stay rope will be relaxed, and the second torsion spring on the longitudinal threaded rod will reset and then drive the longitudinal threaded rod to rotate. After the longitudinal threaded rod rotates, it will pass through the cone. The tooth connecting piece drives the horizontal threaded rod to rotate synchronously, and then drives the cleaning brush to clean the filter and purification port synchronously.

Preferably, the longitudinal threaded rod drives other longitudinal threaded rods and transverse threaded rods to rotate synchronously through the second pull cord and the second torsion spring, thereby forming a linkage structure, and the rotation of the longitudinal threaded rod and the transverse threaded rod will drive the cleaning The brush is moved so that after the longitudinal threaded rod rotates, the other longitudinal threaded rods and transverse threaded rods can be driven to rotate through the bevel tooth connector, which has a compact structure and high cleaning efficiency.

Preferably, the limiting rods are symmetrically arranged on both sides of the cleaning brush, and the cleaning brush keeps moving linearly through the limiting rod and the limiting groove, so that when the longitudinal threaded rod and the transverse threaded rod rotate, the limiting position on the cleaning brush The rod and the limit groove will limit the movement track of the cleaning brush to prevent the phenomenon of rotation.

Compared with the prior art, the beneficial effects of the present invention are: the high-efficiency pressure relief anti-shock wave type coal mine protection device;

(1) After the connecting rod moves up in the vertical groove through the set filter and purification port, the air vent, the connecting rod, the first pull cord, the helical gear roller, the first torsion spring and the special-shaped convex teeth, the first When the pull rope is relaxed, the first torsion spring installed on the helical tooth roller will rotate, and then drive the helical tooth roller to rotate, and the helical tooth roller will drive the sleeve cover on the top of the explosion-proof cover by meshing with the special-shaped convex teeth. Rotate, and then overlap the filter purification port with the ventilation port, so as to efficiently relieve the pressure inside the mine exhaust port, and at the same time, it can also purify and filter harmful substances;

(2) Through the ring plate, the second pull cord, the longitudinal threaded rod, the second torsion spring, the transverse threaded rod, the cleaning brush, the limit rod and the limit groove, after the ring plate moves, it will drive the The second pull cord is relaxed, and the longitudinal threaded rod will rotate under the action of the second torsion spring turning force. After the longitudinal threaded rod rotates, it will drive the horizontal threaded rod to rotate synchronously through the bevel tooth connector. After the threaded rod rotates, it will drive the cleaning brush to clean the sundries at the filter and purification port, and the limiting rod will slide in the limiting groove, thereby maintaining the linear movement of the cleaning brush.

Description of drawings

Fig. 1 is a schematic diagram of the overall front view structure of the present invention;

Fig. 2 is a schematic diagram of the position structure of the filter purification port and the ventilation port before the work of the present invention;

Fig. 3 is a schematic diagram of the top view structure of the vertical groove of the present invention;

Fig. 4 is a schematic diagram of the side view structure of the connection between the special-shaped convex tooth and the helical tooth roller of the present invention;

Fig. 5 is a schematic diagram of the top view of the connection between the special-shaped convex teeth and the helical rollers of the present invention;

Fig. 6 is a schematic bottom view of the explosion-proof cover according to the present invention.

In the figure: 1. Mine exhaust outlet; 2. Explosion-proof cover; 3. Filtration and purification port; 4. Cover; 5. Air vent; 6. Ring plate; 7. Connecting rod; 8. Vertical groove; 9. 1. Pull cord; 10. Helical gear roller; 11. Mounting groove; 12. First torsion spring; 13. Special-shaped convex teeth; 14. Second stay cord; 15. Longitudinal threaded rod; 16. Second torsion spring; 17. Bevel tooth connector; 18, horizontal threaded rod; 19, installation sleeve rod; 20, cleaning brush; 201, limit rod; 202, limit groove.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-6, the present invention provides a technical solution: a high-efficiency pressure relief anti-shock wave coal mine protection device, including a mine air outlet 1, which is set on the bottom of the mine area, and the top of the mine air outlet 1 is nested The explosion-proof cover 2 for protection is connected, and the filter purification port 3 for ventilation and filtering harmful substances is opened at an equal angle on the explosion-proof cover 2;

The cover 4 is sleeved and connected to the top outside of the explosion-proof cover 2, and the cover 4 is correspondingly provided with a vent 5 for pressure relief, and the bottom of the cover 4 is connected to the space formed by the installation groove 11, and The installation slot 11 is set on the top of the mine air outlet 1;

The ring plate 6 is movably connected to the inner bottom of the mine air outlet 1, and fits with the inner wall of the mine air outlet 1;

Longitudinal threaded rod 15, the axis of symmetry is connected to the bottom of explosion-proof cover 2, and longitudinal threaded rod 15 is connected with transverse threaded rod 18 through bevel tooth connector 17, and transverse threaded rod 18 is symmetrically arranged on the bottom of explosion-proof cover 2, and transverse threaded The rod 18 is connected to the side wall of the explosion-proof cover 2 through a mounting sleeve rod 19 .

The end portion of the ring plate 6 is fixedly equipped with a connecting rod 7, and the connecting rod 7 is connected in the space formed by the vertical groove 8, and the vertical groove 8 is symmetrically opened on the side wall of the mine air outlet 1, and the connecting rod 7 The top is fixed with the first pull rope 9 for connection, and the top of the first pull rope 9 is wound on the helical toothed roller 10. The top of mouth 1, and the first torsion spring 12 for reset is connected between the helical tooth roller 10 and the installation groove 11, and the top of the helical tooth roller 10 is connected with the special-shaped convex tooth 13 meshing with it, and the special-shaped convex tooth 13 Equiangularly distributed on the bottom of the cover 4, the helical toothed roller 10 forms a reciprocating rotation structure with the installation groove 11 through the action of the first pull cord 9 and the first torsion spring 12, and the meshing of the helical toothed roller 10 and the special-shaped convex tooth 13 drives The sleeve cover 4 rotates in the installation groove 11, and the number and position of the filter and purification port 3 opened on the explosion-proof cover 2 correspond to the number and position of the vent 5 provided on the cover 4, and the cover 4 rotates to drive the filter and purification port 3 and Vent 5 is overlapped, as shown in Figure 1-5, first, the device is installed at the mine exhaust outlet 1, when the wind is discharged from the mine exhaust outlet 1, it will push the ring plate 6 to go up. When the ring plate 6 moves up, it will drive the connecting rod 7 to move up synchronously in the vertical groove 8. After the connecting rod 7 moves up, the first pull cord 9 fixed on the top will be in a relaxed state. After the rope 9 was loosened, the first torsion spring 12 whose initial state on the helical toothed roller 10 was reversed would rotate, and the first torsion spring 12 would drive the helical toothed roller 10 to rotate, and the helical toothed roller 10 would rotate with the The special-shaped protruding teeth 13 mesh with each other, and then drive the cover 4 to rotate in the installation groove 11. After the cover 4 rotates, the air vent 5 opened on the top will coincide with the position of the filter and purification port 3 opened on the explosion-proof cover 2. , and then make the wind pass through the filter and purification port 3 and then be discharged from the vent 5, and then when the inside of the mine vent 1 explodes, the shock wave will drive the ring plate 6 to move up, thereby affecting the inside of the mine vent 1. The high pressure is unloaded, and the filter purification port 3 can intercept and purify some sundries and harmful substances.

The top left side of the ring plate 6 is fixed with a second stay cord 14, and the top of the second stay cord 14 is wound around the end of the longitudinal threaded rod 15, and the rear end of the longitudinal threaded rod 15 is connected to the explosion-proof cover 2 The second torsion spring 16 is connected between the side walls, and the middle part of the longitudinal threaded rod 15 and the middle part of the transverse threaded rod 18 connected by the bevel tooth connector 17 are all threaded with a cleaning brush 20, and the outer side of the cleaning brush 20 is fixed. There is a limit rod 201 to prevent rotation, the top of the limit rod 201 is connected in the limit groove 202, and the limit groove 202 is opened at the bottom of the explosion-proof cover 2, and the limit groove 202 is located on both sides of the filter and purification port 3, Moreover, the filter and purification port 3 corresponds to the position of the cleaning brush 20, and the longitudinal threaded rod 15 drives other longitudinal threaded rods 15 and transverse threaded rods 18 to rotate synchronously through the second stay cord 14 and the second torsion spring 16, thereby forming a linkage structure , and the rotation of the longitudinal threaded rod 15 and the transverse threaded rod 18 will drive the cleaning brush 20 to move, the limiting rod 201 is symmetrically arranged on both sides of the cleaning brush 20, and the cleaning brush 20 is kept Linear movement, as shown in Fig. 1, Fig. 3 and Fig. 6, when the ring plate 6 moves upward, it will also drive the second stay cord 14 to be relaxed, and the initial state installed on the longitudinal threaded rod 15 is reversed. The second torsion spring 16 will start to reset and rotate, and then drive the longitudinal threaded rod 15 to rotate. After the longitudinal threaded rod 15 rotates, the remaining longitudinal threaded rod 15 and the horizontal threaded rod 18 will be driven to rotate synchronously through the bevel tooth connector 17. And then drive four cleaning brushes 20 to move synchronously, when cleaning brushes 20 are active, the stop bar 201 that its outer side is fixed will move in the stop groove 202 synchronously, thereby keep cleaning brushes 20 and can only move in a straight line without moving. Misalignment will occur.

Working principle: When using the high-efficiency pressure relief anti-shock wave coal mine protection device, as shown in Figure 1-5, firstly, the circular plate 6 moves up, the first pull rope 9 is loosened, and the helical toothed roller 10 will be on the second Rotate under the drive of a torsion spring 12, after the helical gear roller 10 rotates, it will drive the sleeve cover 4 to rotate through the engagement with the special-shaped convex teeth 13, so that the ventilation port 5 and the filter purification port 3 opened on the explosion-proof cover 2 The positions are overlapped, and then the high pressure is unloaded and the air is filtered;

As shown in Fig. 1, Fig. 3 and Fig. 6, the ring plate 6 moves up, the second pull cord 14 relaxes the longitudinal threaded rod 15 and rotates under the drive of the second torsion spring 16, and the longitudinal threaded rod 15 passes through the bevel tooth connector 17 drives remaining longitudinal threaded rods 15 and transverse threaded rods 18 to rotate synchronously, thereby driving four cleaning brushes 20 to clean up synchronously.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

Claims (4)

1. An anti-shock wave type coal mine protection device for efficient pressure relief, characterized in that: comprising: The mine air outlet is set on the bottom surface of the mine area, and the top of the mine air outlet is nested and connected with an explosion-proof cover for protection, and the explosion-proof cover is provided with a filter purification port for ventilation and filtering harmful substances at an equal angle; The sleeve cover is fitted and connected to the top outside of the explosion-proof cover, and the cover is correspondingly provided with a vent for pressure relief, and the bottom of the cover is connected to the space formed by the installation groove, and the installation groove is opened in the top of the mine vent; The ring plate is movably connected to the inner bottom of the mine air outlet, and fits with the inner wall of the mine air outlet; the end of the ring plate is fixedly equipped with a connecting rod, and the connecting rod is connected to the In the space formed by the vertical groove, and the vertical groove is symmetrically opened on the side wall of the mine air outlet, and the top of the connecting rod is fixed with the first stay rope for connection, and the top of the first stay rope is wound on the inclined On the toothed roller, the shaft of the helical toothed roller is connected in the installation groove, and the installation groove is opened on the top of the mine air outlet, and the first torsion spring for reset is connected between the helical tooth roller and the installation groove, and The top of the helical tooth roller is connected with special-shaped convex teeth meshing with it, and the special-shaped convex teeth are equiangularly distributed on the bottom of the cover; A longitudinal threaded rod, the axis of symmetry is connected to the bottom of the explosion-proof cover, and the longitudinal threaded rod is connected with a transverse threaded rod through a bevel tooth connector, and the transverse threaded rod is symmetrically arranged at the bottom of the explosion-proof cover, and the transverse threaded rod is installed through the The sleeve rod is connected to the side wall of the explosion-proof cover; the top left side of the ring plate is fixed with a second stay rope, and the top of the second stay rope is wound on the end of the longitudinal threaded rod, and the longitudinal thread A second torsion spring is connected between the rear end of the rod and the side wall of the explosion-proof cover, and the middle part of the longitudinal threaded rod and the middle part of the transverse threaded rod connected by the bevel tooth connector are threaded with a cleaning brush, and the cleaning brush The outer side is fixed with a limit rod to prevent rotation, the top of the limit rod is connected to the limit groove, and the limit groove is opened at the bottom of the explosion-proof cover, and the limit groove is located on both sides of the filter purification port, And the filter purification port corresponds to the position of the cleaning brush. 2. A high-efficiency pressure relief anti-shock wave coal mine protection device according to claim 1, characterized in that: the helical toothed roller forms a reciprocating rotation structure through the action of the first pull cord and the first torsion spring and the installation groove , and the engagement of the helical gear roller and the special-shaped convex teeth drives the cover to rotate in the installation groove. 3. A high-efficiency pressure relief anti-shock wave coal mine protection device according to claim 1, characterized in that: the longitudinal threaded rod drives other longitudinal threaded rods and transverse threads through the second pull rope and the second torsion spring The rods rotate synchronously to form a linkage structure, and the rotation of the longitudinal threaded rod and the transverse threaded rod will drive the cleaning brush to move. 4. A high-efficiency pressure relief anti-shock wave coal mine protection device according to claim 1, characterized in that: the limit rods are symmetrically arranged on both sides of the cleaning brush, and the cleaning brush passes through the limit rod and the limit rod. The slot keeps moving in a straight line.

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