Bidirectional opening explosion suppression device with limiting structure

Abstract

The utility model relates to the technical field of explosive-proof devices, in particular to a bidirectional opening explosive-proof device with a limiting structure, which comprises a fixed beam, a limiting beam, a hanging mechanism and an explosive-proof unit, the fixed beam is connected with the explosive-proof unit through the limiting beam and the hanging mechanism, and the bidirectional opening explosive-proof device is characterized in that the hanging mechanism comprises a hinge block; the fixed beam is provided with a hinged block, the hinged block is connected with the fixed beam in a hinged structure mode, the hinged block is connected with the explosion-proof unit in a hinged structure mode, a notch is formed in the periphery of the hinged block, and a limiting piece for preventing the explosion-proof unit from moving towards the rear side through the notch is further arranged on the periphery of the hinged block. The limiting function can still be achieved, the structure is simpler, and installation is more convenient.

Description

Technical fields:

[0001] This application relates to the field of explosion-proof device technology, and in particular to a bidirectional opening explosion-proof device with a limiting structure. Background technology:

[0002] The automatic explosion-proof device in underground coal mines is fixed to the roof of the roadway by anchor bolts. When a gas and coal dust explosion occurs in the underground coal mine, the shock wave receiving plate receives the shock wave signal, which drives the push rod to move and triggers the locking device inside the main body. This triggers the device to activate, causing the extinguishing medium inside the main body to spray out within 10 seconds, forming an extinguishing medium cloud with an effective length of more than 30m.

[0003] For example, our company's utility model patent application number CN202320815627.7—a bidirectional opening explosion-proof device—includes a fixed beam and, from front to back, a front shock wave receiver, a sliding sleeve, an air jet pipe, and an explosion-proof main unit. The front shock wave receiver and the air jet pipe are both slidably connected inside the sliding sleeve, and the air jet pipe is fixedly connected to the front end of the explosion-proof main unit. The fixed beam is also provided with a limiting beam to restrict the forward movement of the sliding sleeve. Several hanging rods arranged along its extension direction are hinged to the bottom surface of the fixed beam. The bottom end of the hanging rod is hinged to the explosion-proof main unit. The fixed beam is also provided with a limiting plate located behind the hanging rod. A limiting bolt that reaches the hanging rod is threadedly connected to the limiting plate.

[0004] This patent application uses the limiting bolts on the limiting plate to limit the hanging rod, which can effectively prevent the explosion-proof host from moving backward. However, it requires additional welding to add a limiting plate and setting the limiting bolts on the limiting plate. After repeated impacts, the weld at the connection between the limiting plate and the fixed beam is prone to cracking, resulting in poor structural stability and affecting use. Utility model content:

[0005] To solve the above-mentioned technical problems, this utility model provides a bidirectional opening explosion-proof device with a limiting structure. The technical problem solved is that the explosion-proof main unit requires an additional limiting plate and limiting bolts to achieve the limiting purpose. The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A bidirectional opening explosion-proof device with a limiting structure includes a fixed beam, a limiting beam, a hanging mechanism, and an explosion-proof unit. The fixed beam is connected to the explosion-proof unit through the limiting beam and the hanging mechanism. The hanging mechanism includes:

[0007] The hinge block is connected to the fixed beam in a hinged structure, and the hinge block is also connected to the explosion-proof unit in a hinged structure.

[0008] The notch is located on the outer periphery of the hinge block;

[0009] And a limiting component that prevents the explosion-proof unit from moving rearward through a notch.

[0010] Furthermore, the explosion-proof unit includes, from front to back, a front receiving plate, a front receiving rod, a mounting clamp, a sliding sleeve, an air jet pipe, an explosion-proof main unit, a deflector, a rear receiving rod, and a rear receiving plate.

[0011] Furthermore, the fixed beam is provided with an upper mounting seat in a fixed structure manner, and the upper mounting seat is connected to the hinge block through a hinge structure of shaft A;

[0012] The explosion-proof main unit is equipped with a lower mounting base in a fixed structure, and the lower mounting base is connected to the hinge block through a hinge structure of shaft B.

[0013] Furthermore, the notch is located on the lower part of the hinge block near the limiting beam, and the limiting component is integrated with the lower mounting base.

[0014] Furthermore, the notch is located on the upper part of the hinge block, away from the limiting beam, and the limiting component is integrated with the upper mounting base.

[0015] Furthermore, the limiting component is a stop block, and the two stops are fixedly connected to the upper mounting base and the lower mounting base respectively.

[0016] The beneficial effects of this utility model are: by opening a notch in the hinge block, and by using a limiting member to abut against the notch to prevent the explosion-proof unit from moving to the rear, the design of the above structure can replace the design of the limiting bolt and the limiting plate, and still achieve the limiting function. The structure is simpler and the installation is more convenient. Attached image description:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the connection structure between the fixed beam and the explosion-proof host through the hanging mechanism under normal conditions.

[0019] Figure 3 This is a schematic diagram of the connection structure between the fixed beam and the explosion-proof host through the suspension mechanism when the rear end of the present invention is subjected to an impact.

[0020] In the picture:

[0021] 1. Fixed beam, 2. Limiting beam, 3. Hanging mechanism, 31. Hinge block, 32. Notch, 33. Limiting component, 41. Front receiving plate, 42. Front receiving rod, 43. Insertion hoop, 44. Sliding sleeve, 45. Jet pipe, 46. Explosion-proof main unit, 47. Flow deflector, 48. Rear receiving rod, 49. Rear receiving plate, 5. Upper mounting base, 6. Shaft A, 7. Lower mounting base, 8. Shaft B. Detailed implementation method:

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows:

[0023] A bidirectional opening explosion-proof device with a limiting structure includes a fixed beam 1, a limiting beam 2, a hanging mechanism 3, and an explosion-proof unit. The fixed beam 1 is connected to the explosion-proof unit through the limiting beam 2 and the hanging mechanism 3. The characteristic feature is that the hanging mechanism 3 includes a hinge block 31, which is connected to the fixed beam 1 and the explosion-proof unit in a hinged manner. The hinge block 31 has a notch 32 on its outer periphery and is also provided with a limiting member 33 that prevents the explosion-proof unit from moving backward through the notch 32. By using the above structural design, the limiting function can still be achieved instead of the limiting bolt and limiting plate design. The structure is simpler and the installation is more convenient.

[0024] Specifically, the explosion-proof unit includes a front receiving plate 41, a front receiving rod 42, a mounting clamp 43, a sliding sleeve 44, an air jet pipe 45, an explosion-proof main unit 46, a flow guide 47, a rear receiving rod 48, and a rear receiving plate 49 arranged sequentially from front to back. The front receiving rod 42 and the air jet pipe 45 are slidably connected in the sliding sleeve 44. The limiting beam 2 has a groove for the front receiving rod 42 to pass through, and the groove can accommodate the up and down movement of the front receiving rod 42.

[0025] It should be noted that the fixed beam 1 is provided with an upper mounting seat 5 in a fixed structure, and the upper mounting seat 5 is connected to the hinge block 31 through a hinge structure of shaft A6; the explosion-proof host 46 is provided with a lower mounting seat 7 in a fixed structure, and the lower mounting seat 7 is connected to the hinge block 31 through a hinge structure of shaft B8. The upper mounting seat 5 and the lower mounting seat 7 can be plate-shaped or two plates side by side.

[0026] It should be noted that the notch 32 is opened on the side of the lower part of the hinge block 31 near the limiting beam 2. The limiting member 33 is fixedly set on the side wall of the lower mounting base 7 below the notch 32, and the lower end face of the limiting member 33 is in contact with the explosion-proof host 46 to transmit the pressure on the limiting block 33 to the explosion-proof host 46. In order to further increase the structural stability, the limiting block 33 and the lower mounting base 7 are designed as an integral part.

[0027] The notch 32 can also be opened on the upper part of the hinge block 31 away from the limiting beam 2. The limiting member 33 is integrated with the upper mounting base 5. Similarly, the limiting member 33 is set above the notch 32 here. The upper end face of the limiting member 33 is in contact with the fixed beam 1. Two sets of hanging mechanisms 3 are provided. Each set of hanging mechanisms 3 is provided with two notches 32 and two limiting members 33 to limit the hinge block 31 in two directions, and the limiting effect is better.

[0028] Specifically, the limiting component 33 is a stop block, and the two stops are fixedly connected to the upper mounting base 5 and the lower mounting base 7 respectively.

[0029] The working principle and process of this utility model are as follows:

[0030] When a gas or coal dust explosion occurs in the roadway in front of the explosion-proof device, the front receiving plate 41 converts the received impact force into thrust, which is transmitted to the mounting hoop 43 through the front receiving rod 42. The main unit of the explosion-proof device is suspended on the hanging mechanism 3, and the limiting member 33 blocks one side of the notch 32, preventing the hinge block 31 from rotating. The explosion-proof main unit 46 is stationary, and the mounting hoop 43 and the sliding sleeve 44 are connected together by threads. They move axially backward along the outer circumference of the jet pipe 45. When they move to a certain position, the unlocking piston releases high-pressure gas to trigger the explosion-proof device.

[0031] When a gas or coal dust explosion occurs in the roadway behind the explosion-proof device, the rear receiving plate 49 converts the received impact force into thrust, which pushes the explosion-proof host 46 forward through the rear receiving rod 48. At this time, the limiting member 33 can no longer block the rotation of the hinge block 31, so the explosion-proof host 46 can move forward. However, the insertion hoop 43 and the sliding sleeve 44 cannot move due to the obstruction of the limiting beam 2. At this time, the jet pipe 45 moves axially forward in the axial hole of the sliding sleeve 44 under the push of the explosion-proof host 46. When it moves to a certain position, the unlocking piston releases high-pressure gas to trigger the explosion-proof device, thereby realizing bidirectional triggering of the explosion-proof device.

[0032] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A bidirectional opening explosion-proof device with a limiting structure, comprising a fixed beam (1), a limiting beam (2), a hanging mechanism (3), and an explosion-proof unit, wherein the fixed beam (1) is connected to the explosion-proof unit through the limiting beam (2) and the hanging mechanism (3), characterized in that, The suspension mechanism (3) includes: Hinged block (31), the hinged block (31) is connected to the fixed beam (1) in a hinged structure, and the hinged block (31) is connected to the explosion-proof unit in a hinged structure. Notch (32) is formed on the outer periphery of the hinge block (31); And a limiting element (33) that prevents the explosion-proof unit from moving rearward through the notch (32).

2. The bidirectional opening explosion-proof device with a limiting structure according to claim 1, characterized in that: The explosion-proof unit includes, from front to back, a front receiving plate (41), a front receiving rod (42), a mounting clamp (43), a sliding sleeve (44), an air jet pipe (45), an explosion-proof main unit (46), a flow deflector (47), a rear receiving rod (48), and a rear receiving plate (49).

3. The bidirectional opening explosion-proof device with a limiting structure according to claim 2, characterized in that: The fixed beam (1) is provided with an upper mounting seat (5) in a fixed structure manner. The upper mounting seat (5) is connected to the hinge block (31) through the hinge structure of shaft A (6). The explosion-proof main unit (46) is provided with a lower mounting base (7) in a fixed structure. The lower mounting base (7) and the hinge block (31) are hinged through shaft B (8).

4. A bidirectional opening explosion-proof device with a limiting structure according to claim 3, characterized in that: The notch (32) is opened on the side of the lower part of the hinge block (31) near the limiting beam (2), and the limiting member (33) is integrated with the lower mounting base (7).

5. A bidirectional opening explosion-proof device with a limiting structure according to claim 3 or 4, characterized in that: The notch (32) is opened on the upper part of the hinge block (31) away from the limiting beam (2), and the limiting member (33) is integrated with the upper mounting base (5).

6. A bidirectional opening explosion-proof device with a limiting structure according to claim 5, characterized in that: The limiting component (33) is a stop block, and the two stops are fixedly connected to the upper mounting base (5) and the lower mounting base (7) respectively.

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