An explosion-proof device opening mechanism

Abstract

The application relates to the technical field of explosion isolation devices, in particular to an explosion isolation device opening mechanism, which comprises a fixing beam, a hanging device and a fire extinguishing assembly, the fixing beam is connected with the fire extinguishing assembly through the hanging device, characterized in that a trigger assembly is further arranged on one side of the fire extinguishing assembly, a limiting beam for driving the trigger assembly is arranged, the limiting beam is connected with the fixing beam in a sliding structure mode, a power piece is connected with the fixing beam to drive the limiting beam to move forward and backward, the power piece is a gas cylinder or an oil cylinder; a front shock wave receiver and a rear shock wave receiver are respectively connected to the front end and the rear end of the trigger assembly; when the front shock wave receiver and the rear shock wave receiver do not complete triggering, the limiting beam is driven to slide through the control of the power piece, so that the explosion isolation device is operated in an independent mode, triggering and starting of the device can be realized through the control of the power piece in the case of an emergency non-triggering state, double protection is realized to ensure that the explosion isolation device can be started in time, and the fire caused by an explosion accident is prevented from further expanding.

Description

Technical fields:

[0001] This application relates to the field of explosion-proof device technology, and in particular to an explosion-proof device opening mechanism. 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] The explosion-proof device bidirectional opening mechanism, with application number CN202123116076.5, includes a fixed beam, a hanging device supported on the fixed beam on the explosion-proof main unit, an insertion clamp at the front end of the explosion-proof main unit, a limiting beam fixed to the fixed beam, a front shock wave receiver located in front of the explosion-proof main unit, and a rear shock wave receiver located behind the explosion-proof main unit. The hanging device is slidably connected to the fixed beam in the front-rear direction, and a limiting structure is provided on the fixed beam to prevent the hanging device from moving backward. The limiting beam extends to the front side of the insertion clamp, and a through hole is provided on the limiting beam for the front receiving rod to pass through. When the front side of the explosion-proof device explodes, the front shock wave pushes the insertion clamp to move backward, unlocking the piston and releasing high-pressure gas to trigger the explosion-proof device. When the rear side of the explosion-proof device explodes, the rear shock wave pushes the explosion-proof main unit forward, preventing the insertion clamp from moving, and the jet pipe moves forward, triggering the explosion-proof device.

[0004] This patent utilizes a front shock wave receiver and a rear shock wave receiver to receive the shock wave after a gas and coal dust explosion, and then transmits it to the triggering component. However, if the impact force is not strong enough, it cannot complete the triggering, which affects its use. Utility Model Content:

[0005] To solve the above-mentioned technical problems, this utility model provides an opening mechanism for an explosion-proof device. The technical problem it solves is that after a gas or coal dust explosion occurs in a tunnel, the shock wave cannot trigger the triggering component to detonate the explosion-proof main unit through the front or rear shock wave receiver. The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:

[0006] An explosion-proof device opening mechanism includes a fixed beam, a hanging device, and a fire extinguishing assembly. The fixed beam is connected to the fire extinguishing assembly via the hanging device. The mechanism is characterized by further comprising:

[0007] Triggering component, which is located on one side of the fire extinguishing component;

[0008] A limiting beam is used to actuate the trigger component; the limiting beam is connected to the fixed beam in a sliding structure.

[0009] The power component is connected to the fixed beam to drive the limiting beam to move back and forth.

[0010] A front shock wave receiver is connected to the front end of the triggering component.

[0011] The rear shock wave receiver is connected to the back end of the trigger component.

[0012] Furthermore, a slide is provided at the lower part of the fixed beam through a fixed structure. A dovetail groove is provided in the slide, and a slider is slidably arranged in the dovetail groove. The slider is connected to the limiting beam through a fixed structure.

[0013] Furthermore, baffles are installed on the slides on both sides of the dovetail groove in a fixed structure.

[0014] Furthermore, the triggering assembly includes a contact, a threaded sleeve, and a triggering movable sleeve. The contact is connected to the triggering movable sleeve through the threaded sleeve, and a cavity is provided between the contact and the triggering movable sleeve, with a toggle element provided inside the cavity.

[0015] A sleeve is fitted around the contact, and the sleeve is connected to the actuating element in a fixed manner.

[0016] Furthermore, the contact and the threaded sleeve are connected by a threaded engagement structure, and the threaded sleeve and the trigger movable sleeve are connected by a fixed structure.

[0017] Furthermore, the actuating element is an annular retaining ring, which is fitted inside the sleeve.

[0018] Furthermore, the power component is either a pneumatic cylinder or a hydraulic cylinder.

[0019] The beneficial effects of this utility model are: when the front shock wave receiver and the rear shock wave receiver have not been triggered, the limiting beam is driven to slide by the control power component, and it operates in an independent form. This ensures that the device can be triggered and started by controlling the power component in an emergency without triggering, thus providing double protection to ensure that the explosion-proof device can be started in time and to prevent the fire caused by the explosion from spreading further. Attached image description:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the exploded cross-section of part of the structure of this utility model.

[0022] In the picture:

[0023] 1. Fixed beam, 2. Hanging device, 3. Fire extinguishing assembly, 4. Trigger assembly, 41. Contact, 42. Threaded sleeve, 43. Trigger movable sleeve, 5. Limiting beam, 6. Power component, 7. Front shock wave receiver, 8. Rear shock wave receiver, 9. Slide rail, 10. Slider, 11. Baffle, 12. Cavity, 13. Actuating component, 14. Sleeve. Detailed implementation method:

[0024] 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:

[0025] An explosion-proof device opening mechanism includes a fixed beam 1, a hanging device 2, and a fire extinguishing component 3. The fixed beam 1 is connected to the fire extinguishing component 3 via the hanging device 2. The mechanism further includes a triggering component 4, which is located on one side of the fire extinguishing component 3 and is used to activate a limiting beam 5. The limiting beam 5 is connected to the fixed beam 1 via a sliding structure. A power component 6, which is connected to the fixed beam 1, drives the limiting beam 5 to move back and forth. The power component 6 is a pneumatic cylinder or a hydraulic cylinder. A front shock wave receiver 7 and a rear shock wave receiver 8 are respectively connected to the front and rear ends of the triggering component 4. When the front shock wave receiver 7 and the rear shock wave receiver 8 have not been triggered, the limiting beam 5 is slid by controlling the power component 6, thereby activating the triggering component 4. This allows it to operate independently, ensuring that the device can be activated by controlling the power component in an emergency without triggering, providing dual protection to ensure timely activation of the explosion-proof device and prevent further expansion of fire caused by an explosion.

[0026] It should be noted that a slide rail 9 is provided at the lower part of the fixed beam 1 through a fixed structure. A dovetail groove is provided in the slide rail 9, and a slider 10 is slidably arranged in the dovetail groove. The slider 10 is connected to the limiting beam 5 through a fixed structure. The dovetail groove structure can not only satisfy the movement in the front and back direction, but also play a role in suspending the limiting beam 5.

[0027] The slide rails 9 on both sides of the dovetail groove are equipped with baffles 11 in a fixed structure to prevent the slider 10 from sliding out of the slide rail 9.

[0028] It should be noted that the triggering assembly 4 includes a contact 41, a threaded sleeve 42, and a trigger movable sleeve 43. The contact 41 is connected to the trigger movable sleeve 43 via the threaded sleeve 42, and a cavity 12 is provided between the contact 41 and the trigger movable sleeve 43. An actuating element 13 is provided inside the cavity 12, and a gap is left between the inner wall of the actuating element 13 and the threaded sleeve 42, allowing the actuating element 13 to move within the cavity 12. A sleeve 14 is fitted outside the contact 41, and the sleeve 14 is connected to the actuating element 13 in a fixed structure. Other structures of the triggering assembly 4 and the fire extinguishing assembly are described in detail in an air-dropped fire extinguishing bomb with application number CN202022192171.2, and will not be repeated here.

[0029] Specifically, the contact 41 is connected to the threaded sleeve 42 by a threaded engagement structure, and the threaded sleeve 42 is connected to the trigger movable sleeve 43 by a fixed structure.

[0030] The actuating element 13 is an annular retaining ring, which is sleeved inside the sleeve 14. A gap is left between the annular retaining ring and the threaded sleeve 42, which allows the triggering component 4 to tilt inside the annular retaining ring.

[0031] The working principle and process of this utility model are as follows:

[0032] When the shock wave receiver 8 fails to trigger the trigger assembly 4, the operator, upon seeing this on the monitor, activates the cylinder 6. The cylinder 6 outputs an axial extension that pushes the slider 10 along the slide rail 9 via the limiting beam 5. The lower part of the limiting beam 5 pushes the actuating element 13 via the sleeve 14. The actuating element 13 abuts against one side of the trigger movable sleeve 43, thereby pushing the trigger movable sleeve 43, threaded sleeve 42, and contact 41 to move backward. When they reach a certain position, the unlock piston is released, releasing high-pressure gas to trigger the fire extinguishing assembly 3.

[0033] 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. An explosion-proof device opening mechanism, comprising a fixed beam (1), a hanging device (2), and a fire extinguishing assembly (3), wherein the fixed beam (1) is connected to the fire extinguishing assembly (3) via the hanging device (2), characterized in that, Also includes: Triggering component (4), which is located on one side of the fire extinguishing component (3); The limiting beam (5) is used to actuate the trigger component (4), and the limiting beam (5) is connected to the fixed beam (1) in a sliding structure manner; The power component (6) is connected to the fixed beam (1) to drive the limiting beam (5) to move back and forth; The front shock wave receiver (7) is connected to the front end of the triggering component (4); The rear shock wave receiver (8) is connected to the rear end of the trigger component (4).

2. The explosion-proof device opening mechanism according to claim 1, characterized in that: The lower part of the fixed beam (1) is provided with a slide (9) by means of a fixed structure. A dovetail groove is provided in the slide (9). A slider (10) is slidably provided in the dovetail groove. The slider (10) is connected to the limiting beam (5) by means of a fixed structure.

3. The explosion-proof device opening mechanism according to claim 1, characterized in that: The slides (9) on both sides of the dovetail groove are equipped with baffles (11) in a fixed structure.

4. The explosion-proof device opening mechanism according to claim 1, characterized in that: The trigger assembly (4) includes a contact (41), a threaded sleeve (42) and a trigger movable sleeve (43). The contact (41) is connected to the trigger movable sleeve (43) through the threaded sleeve (42), and a cavity (12) is provided between the contact (41) and the trigger movable sleeve (43). A toggle element (13) is provided in the cavity (12). A sleeve (14) is fitted around the contact (41), and the sleeve (14) is connected to the actuating member (13) in a fixed structure.

5. The explosion-proof device opening mechanism according to claim 4, characterized in that: The contact (41) and the threaded sleeve (42) are connected by a threaded engagement structure, and the threaded sleeve (42) and the trigger movable sleeve (43) are connected by a fixed structure.

6. The explosion-proof device opening mechanism according to claim 4, characterized in that: The actuating element (13) is an annular retaining ring, which is sleeved inside the sleeve (14).

7. The explosion-proof device opening mechanism according to claim 1, characterized in that: The power component (6) is a cylinder or a hydraulic cylinder.

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