Sliding sleeve fixing type explosion suppression device

Abstract

The utility model relates to a sliding sleeve fixed type explosion-proof device, which comprises a gas ejector pipe, a fixed beam connected with the gas ejector pipe in a sliding manner, and a sliding sleeve sleeved on the gas ejector pipe, and the sliding sleeve is connected with the fixed beam through a vertical beam. The sliding sleeve is connected to the fixed beam through the vertical beam, so that positioning of the vertical beam is achieved while the sliding sleeve is installed, installation of the vertical beam is facilitated, meanwhile, the hanging plate needs to be located in the middle of the long limiting hole, forward or backward movement of the air injection pipe is facilitated, the position of the hanging plate is relatively simple, and the hanging plate is convenient to use. Therefore, the installation is convenient; through the limitation of the position of the limiting platform and the limitation of the length of the limiting platform, the limiting marble moves to the outer side of the sliding sleeve at the first time of moving backwards to leave the limiting platform, so that the piston is conveniently and quickly unlocked.

Description

Technical Field

[0001] The utility model relates to the field of explosion isolation, in particular to the technical field of explosion isolation in underground coal mines, and specifically refers to a sliding sleeve fixed type explosion isolation device. Background Art

[0002] Currently, underground coal mine explosion-proof devices are widely used in many coal mines in my country. These devices not only improve coal mine production safety but also effectively reduce the incidence of gas explosion accidents. In practical applications, explosion-proof devices have demonstrated high reliability and stability, capable of long-term stable operation in harsh underground environments.

[0003] The solution disclosed in the patent application number 2010206603387, entitled "Underground Explosion-Proof Device for Coal Mines," is that the explosion-proof main unit is fixedly connected to a fixed beam, which means that the device can only perform one-way explosion-proofing. In actual applications, since the specific location of the gas and coal dust explosion cannot be determined, the explosion-proof device can only be installed by predicting the location where the gas and coal dust explosion may occur, and then directing the shock wave receiving device toward the predicted location. If the prediction is inaccurate, the shock wave receiving device cannot receive the shock wave generated by the gas and coal dust explosion.

[0004] For this purpose, the patent application number 2021231160765, entitled "Two-way Opening Mechanism of Explosion-proof Device", solves the above-mentioned problem. In this technical solution, the jet pipe is slidably connected to the sliding sleeve. The jet pipe cooperates with the limiting platform in the sliding sleeve to push the limiting ball to extend into the jet pipe, so that the limiting ball blocks the movement of the piston. A groove is provided in the sliding sleeve in front of the limiting platform. When the limiting ball is in the groove, the piston is unlocked. At the same time, when an explosion occurs on the front side, this solution relies on the hanging plate to be pressed against the rear end of the limiting long hole to achieve the stationary state of the hanging plate and the flameproof host. The movement of the sliding sleeve caused by the explosion enables the limiting ball to enter the groove. When an explosion occurs on the rear side, the sliding sleeve is restricted from moving forward by the limiting beam, and the flameproof host and the jet pipe move forward, thereby allowing the limiting ball to enter the groove. Therefore, in this solution, only the hanging plate is used to support the flameproof host, which will cause unstable connection of the flameproof host. At the same time, the hanging scraper needs to be pressed against the rear end of the limiting long hole during installation, which makes the installation complicated. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a sliding sleeve fixed explosion-proof device, which uses a vertical beam to connect the sliding sleeve to the fixed beam, thereby cooperating with the hanging plate to support the explosion-proof host, thereby enhancing the stability of the explosion-proof host and the fixed beam. At the same time, it is necessary to locate the hanging plate in the middle part of the limiting long hole to facilitate the forward or backward movement of the jet pipe. The setting of the corresponding hanging plate position is relatively simple, thereby facilitating easy installation.

[0006] The utility model is realized through the following technical solution: a sliding sleeve fixed explosion-proof device, comprising a explosion-proof main unit fixedly connected to an injection pipe, a fixed beam for mounting the explosion-proof main unit, and a sliding sleeve sleeved on the injection pipe, wherein the fixed beam is connected to a vertical beam, the injection pipe is connected to a shock wave receiver, and the sliding sleeve is fixed to the vertical beam.

[0007] When the utility model is in use, the vertical beam is used to connect the sliding sleeve to the fixed beam, thereby cooperating with the hanging plate to support the flameproof host, thereby enhancing the stability of the flameproof host and the fixed beam. At the same time, it is necessary to make the hanging plate located in the middle part of the limiting long hole, so as to facilitate the forward or backward movement of the jet pipe. The setting of the corresponding hanging plate position is relatively simple, thereby achieving easy installation.

[0008] When an explosion occurs at the rear, the flameproof main unit and the jet pipe move forward. Since the sliding sleeve is fixed to the vertical beam, the jet pipe moves forward, driving the limit ball forward and falling into the groove of the sliding sleeve, thereby unlocking the piston and releasing high-pressure gas to trigger the flameproof device.

[0009] When an explosion occurs on the front side, the explosion-proof host and the jet pipe move backward. The backward movement of the jet pipe drives the limit ball to move backward, causing the limit ball to move to the outside of the sliding sleeve, thereby unlocking the piston and releasing high-pressure gas to trigger the explosion-proof device.

[0010] Preferably, the sliding sleeve is located at the lower end of the vertical beam.

[0011] The arrangement of this preferred solution facilitates the positioning and connection of the vertical beam and the sliding sleeve.

[0012] Preferably, a limiting platform in the sliding sleeve limits the limiting ball from popping out, and the rear side surface of the limiting platform is coplanar with the rear end surface of the sliding sleeve.

[0013] This preferred solution limits the position of the limiting platform, and when the limiting ball moves backward and leaves the limiting platform, it moves to the outside of the sliding sleeve, thereby facilitating rapid unlocking of the piston.

[0014] Preferably, a limiting ring is fixedly connected to the rear end surface of the sliding sleeve, and the distance between the limiting ring and the air injection pipe is greater than the depth of the limiting ball penetrating into the inner cavity of the air injection pipe.

[0015] This preferred solution uses the setting of the limiting ring to prevent the limiting ball from continuing to move outward after the limiting ball pops out and unlocks the piston.

[0016] Preferably, the front receiving tube of the front shock wave receiver is threadedly connected with a stud, which is threadedly connected to the air injection tube. This preferred solution facilitates the connection between the air injection tube and the front receiving tube through the provision of the stud.

[0017] Preferably, the fixed beam is fixedly connected to the vertical beam by bolts. The arrangement of this preferred solution facilitates the connection and disassembly of the fixed beam and the vertical beam.

[0018] Preferably, the length of the limiting platform is adapted to the diameter of the limiting ball.

[0019] The arrangement of this preferred solution facilitates the limiting ball to fall into the groove or hit the limiting ring at the first time, thereby unlocking the piston at the first time.

[0020] The beneficial effects of the present invention are as follows: the sliding sleeve is connected to the fixed beam by using a vertical beam, thereby cooperating with the hanging plate to support the explosion-proof host, thereby enhancing the stability of the explosion-proof host and the fixed beam. At the same time, the hanging plate needs to be located in the middle part of the limiting long hole, so as to facilitate the forward or backward movement of the jet pipe. The setting of the corresponding hanging plate position is relatively simple, so it is easy to install; by limiting the position of the limiting platform and the length of the limiting platform, when the limiting ball moves backward and leaves the limiting platform, it moves to the outside of the sliding sleeve as soon as possible, thereby facilitating the rapid unlocking of the piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 for Figure 1 A in the middle is an enlarged schematic diagram;

[0023] As shown in the figure:

[0024] 1. Flameproof main engine, 2. Jet pipe, 3. Front shock wave receiver, 4. Rear shock wave receiver, 5. Vertical beam, 6. Fixed beam, 7. Hanging plate, 8. Front receiving tube, 9. Piston, 10. Stud, 11. Sliding sleeve, 12. Groove, 13. Limiting platform, 14. Limiting ring, 15. Limiting ball. DETAILED DESCRIPTION

[0025] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0026] Refer to the attached Figure 1-2 The utility model provides a sliding sleeve fixed explosion-proof device, comprising a fixed beam 6, a explosion-proof main unit 1 located below the fixed beam 6, and an injection pipe 2 that passes through the explosion-proof main unit 1 and is fixedly connected to the explosion-proof main unit. The fixed beam 6 is slidably connected to the explosion-proof main unit 1 through a hanging device. A limiting structure that blocks the hanging device from moving backward is provided on the fixed beam 6. The hanging device comprises a hanging plate 7, a roller that is slidably connected to the fixed beam 6 is axially connected to the hanging plate 7, the limiting structure comprises a limiting hole, and the hanging plate 7 passes through the limiting hole. When the hanging plate reaches the rear side or front side of the limiting hole, the limiting hole limits the hanging plate from continuing to move backward or forward.

[0027] The jet pipe 2 includes a sliding tube that is slidably connected to a sliding sleeve 11, and an air storage tube connected to the sliding tube. A piston 9 is provided in the sliding tube. An opening for placing a limiting ball 15 is opened on the sliding tube. A limiting platform 13 is provided on the inner circumferential surface of the sliding sleeve to limit the popping out of the limiting ball 15. The part of the limiting ball 15 inserted into the inner cavity of the sliding tube limits the sliding of the piston 9.

[0028] A vertical beam is provided directly above the sliding sleeve, and the sliding sleeve 11 is fixedly connected to the fixed beam 6 through the vertical beam 5. The fixed beam 6 is fixedly connected to the vertical beam 5 through bolts. The vertical beam 5 is fixed to the sliding sleeve 11. There are various ways to fix the vertical beam and the sliding sleeve, such as welding the vertical beam and the sliding sleeve, fixing the bottom end of the vertical beam with a clamp sleeved on the circumferential surface of the sliding sleeve, and realizing the fixation of the vertical beam and the sliding sleeve by the clamp, and fixing the sliding sleeve to the vertical beam by bolts and flanges, that is, two flanges are provided on the circumferential surface of the sliding sleeve, one flange is fixed to the sliding sleeve, and the other flange is fixed to the vertical beam, and the two flanges are fixed by bolts.

[0029] The rear side surface of the limiting platform 13 is coplanar with the rear end surface of the sliding sleeve 11. The length of the limiting platform 13 is adapted to the diameter of the limiting ball 15. The sliding sleeve 11 is provided with a groove 12 located in front of the limiting platform 13. The rear end surface of the sliding sleeve 11 is fixedly connected to a limiting ring 14. The distance between the limiting ring 14 and the sliding tube is greater than the depth of the limiting ball penetrating into the inner cavity of the jet tube. The distance between the limiting ring 14 and the sliding tube is adapted to the depth of the groove. The limiting ring is located behind the limiting platform and the groove is located in front of the limiting platform.

[0030] A front shock wave receiver is provided in front of the flameproof main unit 1, and a rear shock wave receiver is provided in the rear. The front shock wave receiver's front receiving tube 8 is threadedly connected to a stud 10, which is threadedly fixed within the sliding tube of the air injection tube 2. The rear shock wave receiver's rear receiving tube 4 is connected to the gas storage tube.

[0031] When the utility model is in use, when the flameproof main unit 1 is connected to the fixed beam 6, the hanging plate 7 needs to be located in the middle part of the limiting long hole, so as to facilitate the flameproof main unit 1 to move forward or backward. When an explosion occurs on the rear side, the flameproof main unit 1 and the jet pipe 2 move forward. The jet pipe 2 moves forward, which drives the limiting ball 15 to move forward. Fixed by the vertical beam, the sliding sleeve is in a stationary state. The limiting ball 15 moves forward and falls into the groove 12, thereby unlocking the piston 9 and releasing the high-pressure gas to trigger the flameproof device.

[0032] When an explosion occurs on the front side, the flameproof main unit 1 and the jet pipe 2 move backward. The backward movement of the jet pipe 2 drives the limiting ball 15 to move backward. Fixed by the vertical beam, the sliding sleeve is in a stationary state. The limiting ball 15 moves backward to the outside of the sliding sleeve 11 and presses against the inner circumference of the limiting ring, thereby unlocking the piston 9 and releasing the high-pressure gas to trigger the flameproof device.

[0033] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution 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 depart 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 sliding sleeve fixed type explosion-proof device, comprising an explosion-proof main unit fixedly connected to an air jet pipe (2), a fixed beam for mounting the explosion-proof main unit, and a sliding sleeve (11) sleeved on the air jet pipe (2), wherein a vertical beam is connected to the fixed beam, and the air jet pipe is connected to a shock wave receiver, characterized in that: The sliding sleeve (11) is fixedly connected to the vertical beam (5).

2. The sliding sleeve fixed explosion-proof device according to claim 1, characterized in that: The sliding sleeve is located at the lower end of the vertical beam.

3. The sliding sleeve fixed explosion-proof device according to claim 1, characterized in that: The limiting platform (13) in the sliding sleeve limits the limiting ball (15) from popping out, and the rear side surface of the limiting platform (13) is coplanar with the rear end surface of the sliding sleeve (11).

4. The sliding sleeve fixed explosion-proof device according to claim 1 or 3, characterized in that: A limiting ring (14) is fixedly connected to the rear end surface of the sliding sleeve (11), and the distance between the limiting ring and the air injection pipe is greater than the depth of the limiting ball penetrating into the inner cavity of the air injection pipe.

5. The sliding sleeve fixed explosion-proof device according to claim 1, characterized in that: The front receiving tube (8) of the front shock wave receiver is threadedly connected with a stud (10), and the stud (10) is threadedly connected to the jet tube (2).

6. The sliding sleeve fixed explosion-proof device according to claim 1, characterized in that: The fixed beam (6) is fixedly connected to the vertical beam (5) by bolts.

7. The sliding sleeve fixed explosion-proof device according to claim 3, characterized in that: The length of the limiting platform (13) is adapted to the diameter of the limiting ball (15).

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