Safety explosion-proof device

Abstract

The utility model relates to the technical field of coal mine ventilation safety explosion prevention, in particular to a safety explosion-proof device. The explosion-proof mechanism is arranged in the pipeline, through cooperation of a spring, a supporting cylinder, a supporting rod and a spring, when explosion occurs, impact force of explosion can abut against an explosion-proof steel plate, at the moment, the spring shrinks, the supporting cylinder, the explosion-proof steel plate and the like are conveniently driven to move, the explosion-proof steel plate abuts against a fixing ring, and therefore explosion is conveniently prevented from damaging the pipeline and the ventilator; through cooperation of a fixing ring, an anti-explosion steel plate, a supporting cylinder and the like, the whole device is prevented from being affected by the hydraulic cylinder during use or explosion, the anti-explosion impact resistance is improved conveniently, meanwhile, the hydraulic cylinder drives the anti-explosion steel plate, the supporting cylinder and the like to move conveniently, the practicability and safety are high, and the device is suitable for popularization and application. And use by people is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine ventilation safety and explosion prevention, in particular to a safety explosion-proof device. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. Most coal mines produce gas, so ventilation is generally required during mining. In addition, there are some explosive items in the mines, so some safety explosion-proof devices are needed for safety.

[0003] After searching, the utility model patent with Chinese patent publication (announcement) number CN218324928U discloses a safety explosion-proof device for coal mine ventilation, which is roughly described as comprising a ventilation duct, the inner cavity of the ventilation duct is fixedly connected with a ventilation fan, the outlet end of the inner cavity of the ventilation duct is fixedly connected with a first slide rail and a second slide rail, one end of the connecting rod is fixedly connected with the second fixed wheel, and the other end of the connecting rod is fixedly connected with the first fixed wheel. When it is in use, although the first slide rail, the second slide rail, the hydraulic cylinder and the explosion-proof steel plate can be arranged in the ventilation duct, when an explosion occurs in an adjacent tunnel, the hydraulic cylinder can push the explosion-proof steel plate against the ventilation duct through the first slide rail and the second slide rail. At the outlet end, the shock wave generated by the explosion is blocked, effectively preventing the explosion impact from causing damage to the ventilation ducts and ventilation fans. However, the above device still has certain problems. 1. If the impact force of the explosion is greater than the top force of the hydraulic cylinder, the hydraulic cylinder will be damaged. At this time, the explosion-proof steel plate will be impacted open, and the ventilation ducts and ventilation fans will still be damaged. 2. The above device does not have emergency measures, and the hydraulic cylinder needs to be opened and used manually. If the hydraulic cylinder is damaged or repaired when it needs to be used, the explosion-proof steel plate cannot be controlled to block the explosion. Therefore, the ventilation ducts and ventilation fans will still be damaged, and the practicality is relatively insufficient. For this reason, we propose a safety explosion-proof device. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a safety explosion-proof device to solve the problems of the prior art mentioned in the background technology: 1. If the impact force of the explosion is greater than the top force of the hydraulic cylinder, the hydraulic cylinder will be damaged. At this time, the explosion-proof steel plate will be impacted open, and the ventilation duct and the ventilation fan will still be damaged; 2. The above device does not have any emergency measures, and the hydraulic cylinder needs to be opened manually for use. If the hydraulic cylinder is damaged or under repair when it needs to be used, the explosion-proof steel plate cannot be controlled to block the explosion. Therefore, the ventilation duct and the ventilation fan will still be damaged, resulting in a relatively insufficient practicality.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model provides the following technical solution: a safety explosion-proof device, comprising:

[0008] pipeline;

[0009] An explosion-proof mechanism is arranged in a pipeline, and the explosion-proof mechanism includes a support plate and two fixing rings, and the support plate and the two fixing rings are fixedly connected in the pipeline, a hydraulic cylinder and a plurality of ventilation fans are installed on the support plate, and an output end of the hydraulic cylinder is fixedly connected to a support rod, a support tube is slidingly sleeved on the support rod, a spring is fixedly arranged between the support tube and the support rod, two explosion-proof steel plates and two support blocks are fixedly sleeved on the support tube, and the support blocks are fixedly connected to the explosion-proof steel plates, which is convenient for automatic operation under non-human control, blocks explosions, improves safety and explosion-proof and impact resistance, and has high practicality.

[0010] Preferably, a support frame is fixedly connected inside the pipeline, and a telescopic rod is provided between the support frame and the support tube.

[0011] Furthermore, a ring groove is provided on the fixing ring, and the explosion-proof steel plate is matched with the ring groove.

[0012] Furthermore, a guide ring is fixedly connected to the fixing ring.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a safety explosion-proof device, which has the following beneficial effects:

[0015] The safety explosion-proof device, through the cooperation of the spring, the support tube, the support rod and the spring, is convenient for when an explosion occurs, the impact force of the explosion will press against the explosion-proof steel plate, and the spring will contract at this time, which is convenient for driving the support tube, the explosion-proof steel plate, etc. to move, so that the explosion-proof steel plate presses against the fixed ring, thereby preventing the explosion from damaging the pipeline and the ventilator, facilitating emergency use, and improving practicality and safety. Through the cooperation of the fixed ring, the explosion-proof steel plate, the support tube, etc., the overall device is prevented from being affected by the hydraulic cylinder during use or explosion, which is convenient for improving the explosion-proof and impact resistance, and also convenient for the hydraulic cylinder to drive the explosion-proof steel plate, the support tube, etc. to move. It has high practicality and safety and is more convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main plane effect of a partial section of this application;

[0017] Figure 2 This is a schematic diagram of the plane effect of the left view of this application;

[0018] Figure 3 For this application Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0019] Figure 4 For this application Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0020] In the figure: 1. pipeline; 2. support plate; 3. fixing ring; 4. hydraulic cylinder; 5. ventilation fan; 6. support rod; 7. support tube; 8. spring; 9. explosion-proof steel plate; 10. support block; 11. support frame; 12. telescopic rod; 13. ring groove; 14. guide ring. DETAILED DESCRIPTION

[0021] Example

[0022] See also Figure 1-Figure 4 , a safety explosion-proof device, comprising:

[0023] Pipeline 1;

[0024] exist Figure 1 , Figure 2 and Figure 4 In the embodiment, an explosion-proof mechanism is arranged in a pipeline 1. The explosion-proof mechanism comprises a support plate 2 and two fixing rings 3. The support plate 2 and the two fixing rings 3 are fixedly connected in the pipeline 1. A hydraulic cylinder 4 and a plurality of ventilation fans 5 are installed on the support plate 2. A support rod 6 is fixedly connected to the output end of the hydraulic cylinder 4. A support tube 7 is slidingly sleeved on the support rod 6. A spring 8 is fixedly arranged between the support tube 7 and the support rod 6. Two explosion-proof steel plates 9 and two support blocks 10 are fixedly sleeved on the support tube 7. The support block 10 is fixedly connected to the explosion-proof steel plate 9. The ventilation fan 5 is used for ventilation. The support block 10 is convenient for guiding the wind. The cooperation of the spring 8, the support rod 6, the support tube 7, etc. is convenient for emergency use and automatic operation under non-human control. When an explosion comes, the explosion impacts the explosion-proof steel plate 9. Because of the impact force, the spring 8 will be compressed at this time, so the explosion-proof steel plate 9 will move and press on the fixing ring 3, thereby facilitating avoiding the explosion from affecting the ventilation fan 5 and the pipeline 1, improving the safety and explosion-proof and impact resistance, and having high practicality.

[0025] exist Figure 1 and Figure 2 In the figure, a support frame 11 is fixedly connected inside the pipeline 1, and a telescopic rod 12 is arranged between the support frame 11 and the support tube 7 to improve the stability of the support tube 7.

[0026] exist Figure 1 and Figure 3 In the embodiment, a ring groove 13 is provided on the fixing ring 3, and the explosion-proof steel plate 9 is matched with the ring groove 13, so that when an explosion occurs, the explosion-proof steel plate 9 can enter the ring groove 13, thereby preventing the explosion from passing through the gap.

[0027] exist Figure 1 and Figure 3 In the figure, a guide ring 14 is fixedly connected to the fixing ring 3 to guide the wind for better ventilation.

[0028] It should be further explained that the ventilation fan 5 and the hydraulic cylinder 4 in this embodiment are conventional equipment purchased on the market and known to those skilled in the art. The models can be selected or customized according to actual needs. In this patent, we only use them and do not improve their structure and function. For those skilled in the art, their setting method, installation method and electrical connection method only need to be debugged and operated according to the requirements of their instruction manual, and will not be described in detail here. The ventilation fan 5 and the hydraulic cylinder 4 are provided with matching control switches. The installation position of the control switch is selected according to actual use requirements to facilitate the operator to operate and control.

[0029] In summary, the working principle and working process of the safety explosion-proof device are as follows: when in use, the safety explosion-proof device is first placed at the location where it is required to be used. Then, when encountering an explosion, people can start the hydraulic cylinder 4 to make the hydraulic cylinder 4 drive the support rod 6, the support tube 7, etc. to move, so that the explosion-proof steel plate 9 can be pressed against the fixed ring 3. If people do not have time to start the hydraulic cylinder 4, when the explosion impacts the explosion-proof steel plate 9, due to the spring 8, the impact force will force the support tube 7 to compress the spring 8, so that the explosion-proof steel plate 9 can be pressed against the fixed ring 3. In this way, emergency explosion protection can be effectively achieved, and damage to the pipeline 1 and the ventilation fan 5 can be avoided, thereby improving practicality and safety, and being more convenient for people to use.

Claims

1. A safety explosion-proof device, characterized in that: include: Pipeline (1); An explosion-proof mechanism is provided in a pipeline (1), comprising a support plate (2) and two fixing rings (3), the support plate (2) and the two fixing rings (3) being fixedly connected in the pipeline (1), a hydraulic cylinder (4) and a plurality of ventilation fans (5) being mounted on the support plate (2), an output end of the hydraulic cylinder (4) being fixedly connected to a support rod (6), a support cylinder (7) being slidably sleeved on the support rod (6), a spring (8) being fixedly arranged between the support cylinder (7) and the support rod (6), two explosion-proof steel plates (9) and two support blocks (10) being fixedly sleeved on the support cylinder (7), and the support blocks (10) being fixedly connected to the explosion-proof steel plates (9).

2. A safety explosion-proof device according to claim 1, characterized in that: A support frame (11) is fixedly connected inside the pipeline (1), and a telescopic rod (12) is arranged between the support frame (11) and the support tube (7).

3. A safety explosion-proof device according to claim 2, characterized in that: The fixing ring (3) is provided with an annular groove (13), and the explosion-proof steel plate (9) is adapted to the annular groove (13).

4. A safety explosion-proof device according to claim 3, characterized in that: A guide ring (14) is fixedly connected to the fixing ring (3).

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