Spring control opening type double-opening single-eruption fire extinguishing agent explosion suppression device

Abstract

The utility model relates to a spring control opening type double-opening single-eruption fire extinguishing agent explosion suppression device which comprises a high-pressure gas storage bin, a powder storage bin and a transmission rod, one end of the high-pressure gas storage bin is fixedly connected with a piston sleeve a, the other end of the high-pressure gas storage bin is fixedly connected with a piston sleeve b communicated with the powder storage bin, and the transmission rod penetrates through the high-pressure gas storage bin and the powder storage bin. A piston a matched with the piston sleeve a and a piston b matched with the piston sleeve b are fixedly connected to the transmission rod, a protrusion is arranged on the outer ring of the transmission rod, the transmission rod is sleeved with springs located on the two sides of the protrusion, the ends, away from the protrusion, of the springs are fixedly arranged, and initial positioning of the transmission rod and axial movement of the transmission rod in any direction are achieved through the springs. The elastic force of the spring needs to be overcome, so that the triggering pressure of the explosion suppression device can be set, the two ends of the transmission rod are fixedly connected with the receiving plates, explosion impact at the two ends of the roadway can drive the transmission rod to axially move, triggering of the explosion suppression device can be achieved through any axial movement, and therefore explosion suppression is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof devices, in particular to a spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device. Background Art

[0002] Mine explosion-proof devices generally use the principle that the speed of the air shock wave generated by the explosion is much greater than the speed of the flame. When the air shock wave arrives, the flame-retardant explosion-proof device is triggered, thereby releasing the fire extinguishing powder in advance to block the flame and prevent other secondary disasters from occurring in the mine.

[0003] The utility model with authorization announcement number CN216130957U discloses an automatic explosion-proof device for mining, which receives shock waves through a shock wave receiving part, and a transmission rod is fixedly connected to a trigger positioning part. The trigger positioning part is sleeved on a first sleeve, and a groove corresponding to the outer side of the first sleeve is provided on the trigger positioning part. A limiting hole is provided on the first sleeve, and a round steel ball is arranged in the limiting hole. The triggering and locking of the trigger mechanism are realized by the steel ball. However, the trigger mechanism is fixed in the limiting hole for a long time by the steel ball, and may rust or deform, thereby resulting in failure to trigger when an explosion occurs, affecting the safety of use in the mine.

[0004] Moreover, many explosion-proof devices can only receive explosion impact from one side and cannot achieve two-way triggering. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides a spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device.

[0006] The utility model is realized through the following technical scheme, and provides a spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device, comprising a high-pressure gas storage bin, a powder storage bin and a transfer rod, one end of the high-pressure gas storage bin is fixedly connected to a piston sleeve a, and the other end is fixedly connected to a piston sleeve b connected to the powder storage bin, the transfer rod passes through the high-pressure gas storage bin and the powder storage bin, both ends of the transfer rod are fixedly connected to receiving plates, a piston a adapted to the piston sleeve a and a piston b adapted to the piston sleeve b are fixedly connected to the transfer rod, a protrusion is provided on the outer ring of the transfer rod, and springs located on both sides of the protrusion are sleeved on the transfer rod, and the ends of the springs away from the protrusions are fixedly arranged.

[0007] In this scheme, both ends of the transmission rod 3 are fixedly connected with a receiving plate 13, so the explosion impact at the tunnel end can impact the receiving plate 13, thereby driving the transmission rod 13 to overcome the elastic force of the spring and slide axially. After the transmission rod 13 slides axially, the piston b7 disengages from the piston sleeve b6, thereby realizing the connection between the high-pressure gas storage bin 1 and the powder storage bin 2 through the piston sleeve b6, and the high-pressure gas in the high-pressure gas storage bin 1 flushes out the fire extinguishing powder in the powder storage bin to achieve explosion isolation.

[0008] As an optimization, the springs on both sides of the protrusion are integrally arranged, and the protrusion passes through the middle of the spring. In this solution, the protrusion passes through the middle of a spring, so that any axial movement of the transmission rod can compress the spring.

[0009] As an optimization, the protrusion is a pin passing through the transmission rod. In this solution, the pin passing through the transmission rod is used as a protrusion, thereby driving the spring to be compressed during movement.

[0010] As an optimization, the end of the piston sleeve a away from the high-pressure gas storage bin is fixedly connected with a spring sleeve, and the end of the spring away from the protrusion is fixed in the spring sleeve. In this solution, the spring end is fixed by the spring sleeve.

[0011] As an optimization, the end of the spring sleeve away from the piston sleeve a is threadedly connected with an adjustment sleeve, and the end of the spring away from the protrusion is respectively pressed against the adjustment sleeve and the piston sleeve a. In this solution, the initial compression of the spring can be adjusted by rotating the adjustment sleeve, thereby adjusting the opening pressure.

[0012] As an optimization, a locking groove is formed on the outer ring of the transmission rod, and a locking bolt fastened to the locking groove is threadedly connected to the piston sleeve a. The locking bolt in this solution is tightened in the locking groove to limit the axial movement of the transmission rod, thereby preventing mis-triggering during transportation and installation.

[0013] As an optimization, the transmission rod is provided with a hollow section, and the piston a and the piston b are both fixedly connected to the hollow section. In this solution, the hollow section of the transmission rod is separately processed from the rest of the parts and then connected to each other.

[0014] As an optimization, a piston baffle adapted to the piston b is fixedly connected in the powder storage bin, and a gas through hole is opened on the piston baffle. The piston baffle in this solution limits the stroke of the piston b moving in this direction, and the gas through hole realizes the passage of high-pressure gas.

[0015] The beneficial effects of the utility model are as follows: the utility model is a spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device, in which the initial positioning of the transmission rod is realized by a spring, and the axial movement of the transmission rod in any direction needs to overcome the elastic force of the spring, so that the triggering pressure of the explosion-proof device can be set, and both ends of the transmission rod are fixedly connected to the receiving plate, and the explosion impact at both ends of the tunnel can drive the transmission rod to move axially, and any axial movement can trigger the explosion-proof device, thereby realizing explosion-proof. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 2 It is a partial enlarged view of the piston a of the utility model;

[0018] Figure 3 It is a partial enlarged view of the piston b of the utility model;

[0019] As shown in the figure:

[0020] 1. High-pressure gas storage bin, 2. Powder storage bin, 3. Transfer rod, 4. Piston sleeve a, 5. Piston a, 6. Piston sleeve b, 7. Piston b, 8. Spring, 9. Pin shaft, 10. Adjusting sleeve, 11. Locking bolt, 12. Piston baffle, 13. Receiving plate, 14. Spring sleeve. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0022] like Figures 1 to 3 As shown, the utility model is a spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device, comprising a high-pressure gas storage bin 1, a powder storage bin 2 and a transfer rod 3. The high-pressure gas storage bin 1 is a closed long strip cavity, one end of which is connected to the powder storage bin 2 by a flange, and the other end of the powder storage bin is open. A sealing film is installed on the opening to prevent the fire extinguishing powder from spilling out. The sealing film is broken after the explosion-proof device is triggered.

[0023] The transmission rod 3 passes through the high-pressure gas storage bin 1 and the powder storage bin 2. Both ends of the transmission rod 3 are fixedly connected with receiving plates 13. After receiving the explosion impact, the receiving plates 13 at both ends drive the transmission rod 3 to slide axially.

[0024] One end of the high-pressure gas storage bin 1 is fixedly connected with a piston sleeve a4, which is a circular sleeve and passes through one end of the high-pressure gas storage bin 1, and the other end is fixedly connected with a piston sleeve b6 connected to the powder storage bin 2, which is also a circular sleeve and passes through the other end of the high-pressure gas storage bin 1, and the high-pressure gas enters the powder storage bin 2 through the piston sleeve b6. The transmission rod 3 passes through the piston sleeve a4 and the piston sleeve b6.

[0025] The transmission rod 3 is provided with a hollow section, and the piston a5 and the piston b7 are both fixedly connected to the hollow section. In this embodiment, the two ends of the transmission rod 3 are partially inserted into the hollow section to achieve docking.

[0026] A piston a5 matched with the piston sleeve a4 and a piston b7 matched with the piston sleeve b6 are fixedly connected to the transmission rod 3. The length of the piston sleeve a4 is greater than that of the piston sleeve b6. The piston b7 can slide axially with the transmission rod 3 and escape from the piston sleeve b6 at both ends, thereby realizing the connection between the high-pressure gas storage bin 1 and the powder storage bin 2. In this process, the piston a5 is always in the piston sleeve a4 to realize the blocking of this end of the high-pressure gas storage bin 1.

[0027] The outer ring of the transmission rod 3 is provided with a protrusion, and the transmission rod 3 is sleeved with springs located on both sides of the protrusion. In this embodiment, the spring is sleeved on the transmission rod 3, and the end of the spring away from the protrusion is fixedly arranged.

[0028] In this embodiment, the springs on both sides of the protrusion are integrally arranged, that is, the same spring, and the protrusion passes through the middle of the spring. When the protrusion moves to one end following the transmission rod 3, part of the spring in the moving direction is compressed, and part of the spring in the other direction is stretched, so that the explosion-proof device can be triggered only when the shock wave is large enough to prevent false triggering.

[0029] The protrusion in this embodiment is a pin 9 passing through the transmission rod 3. Both ends of the pin 9 extend out of the transmission rod 3 and pass through the middle of the spring.

[0030] In order to fix the two ends of the spring, the end of the piston sleeve a4 away from the high-pressure gas storage tank 1 is fixedly connected to the spring sleeve 14, and the end of the spring away from the protrusion is fixed in the spring sleeve 14.

[0031] The inner diameter of the spring sleeve 14 is larger than the inner diameter of the piston sleeve a4. The end of the spring sleeve 14 away from the piston sleeve a4 is threadedly connected with the adjustment sleeve 10. The end of the spring away from the protrusion is respectively pressed against the adjustment sleeve 10 and the piston sleeve a4. By rotating the adjustment sleeve 10, the initial compression of the spring can be adjusted, thereby adjusting the opening pressure.

[0032] A piston baffle 12 adapted to the piston b7 is fixedly connected in the powder storage bin 2, and a gas through hole is opened on the piston baffle 12. The piston baffle limits the stroke of the piston b moving in this direction, and the gas through hole realizes the passage of high-pressure gas.

[0033] The outer ring of the transmission rod 3 is provided with a locking groove, and the piston sleeve a4 is threadedly connected with a locking bolt 11 fastened to the locking groove. The locking bolt is tightened in the locking groove to limit the axial movement of the transmission rod, thereby preventing mis-triggering during transportation and installation.

[0034] The cross section of the powder storage bin 2 is circular, elliptical or polygonal, and the cross section of the high-pressure gas storage bin 1 is circular, elliptical or polygonal.

[0035] The use of the utility model:

[0036] When in use, components such as the high-pressure gas storage bin 1 and the powder storage bin 2 are fixed on the top of the tunnel, the high-pressure gas storage bin 1 is filled with high-pressure gas, the powder storage bin 2 is filled with fire extinguishing powder, and receiving plates 13 are fixedly connected to both ends of the transmission rod 3. Therefore, the explosion impact at the tunnel end can impact the receiving plate 13, thereby driving the transmission rod 13 to overcome the elastic force of the spring and slide axially.

[0037] After the transmission rod 13 slides axially, the piston b7 escapes from the piston sleeve b6, thereby connecting the high-pressure gas storage bin 1 and the powder storage bin 2 through the piston sleeve b6. The high-pressure gas in the high-pressure gas storage bin 1 flushes out the fire extinguishing powder in the powder storage bin to achieve explosion isolation.

[0038] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A spring-controlled double-opening single-spraying explosion-proof device for fire extinguishing agent, comprising a high-pressure gas storage bin (1), a powder storage bin (2) and a transmission rod (3), characterized in that: The high-pressure gas storage bin (1) is fixedly connected to a piston sleeve a (4) at one end and to a piston sleeve b (6) connected to a powder storage bin (2) at the other end. The transmission rod (3) passes through the high-pressure gas storage bin (1) and the powder storage bin (2). Both ends of the transmission rod (3) are fixedly connected to receiving plates (13). The transmission rod (3) is fixedly connected to a piston a (5) adapted to the piston sleeve a (4) and a piston b (7) adapted to the piston sleeve b (6). A protrusion is provided on the outer ring of the transmission rod (3). The transmission rod (3) is sleeved with springs located on both sides of the protrusion. The spring is fixedly arranged at the end away from the protrusion.

2. A spring-controlled double-opening single-spraying fire extinguishing agent explosion-proof device according to claim 1, characterized in that: The springs on both sides of the protrusion are arranged integrally, and the protrusion passes through the middle of the spring.

3. A spring-controlled double-opening single-spraying fire extinguishing agent explosion-proof device according to claim 1, characterized in that: The protrusion is a pin shaft (9) that passes through the transmission rod (3).

4. A spring-controlled double-opening single-spraying fire extinguishing agent explosion-proof device according to claim 1, characterized in that: One end of the piston sleeve a (4) away from the high-pressure gas storage bin (1) is fixedly connected to a spring sleeve (14), and the end of the spring away from the protrusion is fixed in the spring sleeve (14).

5. A spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device according to claim 4, characterized in that: One end of the spring sleeve (14) away from the piston sleeve a (4) is threadedly connected to the adjustment sleeve (10), and the end of the spring away from the protrusion is respectively pressed against the adjustment sleeve (10) and the piston sleeve a (4).

6. A spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device according to claim 1, characterized in that: The outer ring of the transmission rod (3) is provided with a locking groove, and the piston sleeve a (4) is threadedly connected with a locking bolt (11) which is fastened to the locking groove.

7. A spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device according to claim 1, characterized in that: The transmission rod (3) is provided with a hollow section, and the piston a (5) and the piston b (7) are both fixedly connected to the hollow section.

8. The spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device according to claim 1, characterized in that: A piston baffle (12) adapted to the piston b (7) is fixedly connected in the powder storage bin (2), and a gas passing hole is formed in the piston baffle (12).

9. The spring-controlled opening double-opening single-spraying fire extinguishing agent explosion-proof device according to claim 1, characterized in that: The cross-section of the powder storage bin (2) is circular, elliptical or polygonal, and the cross-section of the high-pressure gas storage bin (1) is circular, elliptical or polygonal.

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