Anti-explosion valve

Abstract

The utility model discloses an explosion-wave-proof valve, and particularly relates to the technical field of protective ventilation equipment, the explosion-wave-proof valve comprises a door frame, an explosion-proof door and a handle, the explosion-proof door is movably installed in the door frame, and an adjustable valve assembly is arranged on the surface of the explosion-proof door. The valve assembly comprises an air groove, a rolling shaft, a through groove, an inner ring, an air hole, a sliding groove, a reset spring, a sliding rod and a valve body, and the air groove is formed in the surface of the anti-explosion door. According to the anti-explosion door, the air groove and the rolling shaft are arranged, the rolling shaft is movably installed on the inner side of the air groove, when the anti-explosion door is used, the valve body is located on the outer side of the anti-explosion door, the reset spring can be extruded to cover the opening in the side end of the inner ring to complete door closing operation when the air pressure is too large, and if the rolling shaft is rotated to drive the valve body to be located on the inner side, the protection direction can be switched inwards and outwards; and the rolling shaft can be rotated by 90 degrees, and the air groove is blocked by means of the rolling shaft, so that the air groove can be closed without using the valve main body, and the adjustment usability of the anti-explosion valve main body is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of protective ventilation equipment, in particular to an explosion-proof wave valve. Background Art

[0002] The explosion-proof wave valve refers to the protective ventilation equipment used in civil air defense projects to ensure uninterrupted ventilation in the project in the event of an air raid. It is generally used in combination with a diffusion chamber. It is divided into two types: pendulum type and hose type according to different materials. The main body is a steel structure. It will automatically close when it is hit by a nuclear explosion shock wave to protect the ventilation equipment inside the project from damage. The explosion-proof wave valve is a protective device set at the air inlet and exhaust port and smoke outlet of the project. It can be quickly and automatically closed under the overpressure of the shock wave, and can automatically reset after the shock wave. After the valve is closed, most of the shock wave will be blocked outside the project. At the moment the valve is closed, a small part of the shock wave will enter the diffusion chamber and be weakened to the allowable pressure after diffusion;

[0003] When the explosion-proof valve is in use, the use direction of the valve is fixed. At the same time, it is not convenient to close the valve according to the use requirements, which is inconvenient when in use;

[0004] Therefore need a kind of explosion-proof wave valve to solve above-mentioned problem. Utility Model Content

[0005] The utility model aims to provide an explosion-proof valve to solve the problem in the above-mentioned background technology that the valve part of the explosion-proof valve is not convenient to adjust and use according to needs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof wave valve, comprising a door frame, an explosion-proof door and a handle, the explosion-proof door is movably installed inside the door frame, the surface of the explosion-proof door is provided with an adjustable valve assembly, the valve assembly includes an air groove, a roller, a through groove, an inner ring, an air hole, a slide groove, a reset spring, a slide rod and a valve body, the surface of the explosion-proof door is provided with an air groove, the air groove is movably installed with a roller, the interior of the roller is provided with a through groove, the interior of the through groove is provided with an inner ring, the interior of the inner ring is provided with an air hole, a slide groove is provided on one side of the inner ring, a reset spring is fixed inside the slide groove, a slide rod is fixed on one side of the reset spring, and the valve body is fixed on one side of the slide rod.

[0007] Preferably, a plurality of the air slots are arranged on the surface of the explosion-proof door, and the plurality of the air slots are distributed in parallel.

[0008] Preferably, four groups of the slide grooves are arranged on one side of the inner ring, and the four groups of the slide grooves are distributed in a ring shape.

[0009] Preferably, a limiting platform is fixed on one side inside the door frame, a rubber pad is fixed on one side of the limiting platform, and a shaping spring is arranged inside the rubber pad.

[0010] Preferably, a plurality of the limit platforms are fixed on one side inside the door frame, and the plurality of the limit platforms are symmetrically distributed.

[0011] Preferably, a mounting frame is fixed to one side of the explosion-proof door, a plug-in frame is provided on the inner side of the mounting frame, anti-slip convex strips are fixed to the surface of the plug-in frame, a dustproof plate is fixed to one side of the plug-in frame, and a dustproof net is installed inside the dustproof plate.

[0012] Preferably, a plurality of the anti-slip convex strips are fixed on the surface of the plug-in frame, and the plurality of the anti-slip convex strips are distributed at equal intervals.

[0013] Preferably, a handle is installed at one end of both sides of the explosion-proof door.

[0014] Compared with the prior art, the utility model has the following beneficial effects: by providing an air slot and a roller, the roller is movably installed on the inner side of the air slot, when in use, the valve body is located on the outer side of the explosion-proof door, and when the wind pressure is too large, the reset spring can be squeezed to cover the opening at the side end of the inner ring to complete the door closing operation, and if the roller is rotated to drive the valve body to be located on the inner side, the protection direction can be converted inside and outside, and the roller can also be rotated 90 degrees to complete the blocking of the air slot with the help of the roller, so that the air slot can be closed without using the valve body, thereby realizing the adjustable usability of the explosion-proof valve body;

[0015] By setting a limit platform, the limit platform is located inside the door frame and is used to limit the explosion-proof door when the explosion-proof door is closed. A rubber pad is installed on the inside of the limit platform to assist in shock absorption protection when the explosion-proof door collides with the limit platform, thereby realizing the shock absorption protection of the explosion-proof wave valve when the explosion-proof door is closed.

[0016] By providing a dustproof plate and a dustproof net, the installation frame is located on the outside of the wind slot. When in use, the plug-in frame on the inner side of the dustproof plate can be stuck on the inner side of the installation frame to complete the installation of the dustproof plate. The dustproof net on the inner side of the dustproof plate can assist in dust and debris removal during air exchange operations, thereby enhancing the dustproofness of the explosion-proof wave valve when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the air duct of the utility model;

[0020] Figure 4 This is a schematic diagram of the front cross-sectional structure of the limit platform of the utility model;

[0021] Figure 5 It is a schematic diagram of the front cross-sectional structure of the dustproof plate of the utility model.

[0022] In the figure: 1. door frame; 2. explosion-proof door; 3. air slot; 4. roller; 5. through slot; 6. inner ring; 7. air hole; 8. slide slot; 9. return spring; 10. slide bar; 11. valve body; 12. limit table; 13. rubber pad; 14. shaping spring; 15. installation frame; 16. plug-in rack; 17. anti-slip convex strip; 18. dustproof plate; 19. dustproof net; 20. handle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 , an embodiment provided by the utility model: an explosion-proof wave valve, comprising a door frame 1, an explosion-proof door 2 and a handle 20, the explosion-proof door 2 is movably installed inside the door frame 1, an adjustable valve assembly is arranged on the surface of the explosion-proof door 2, the valve assembly comprises an air slot 3, a roller 4, a through slot 5, an inner ring 6, an air hole 7, a slide 8, a reset spring 9, a slide rod 10 and a valve body 11, the surface of the explosion-proof door 2 is provided with an air slot 3, a plurality of air slots 3 are arranged on the surface of the explosion-proof door 2, and the plurality of air slots 3 are distributed in parallel, a roller 4 is movably installed inside the air slot 3, a through slot 5 is arranged inside the roller 4, an inner ring 6 is installed inside the through slot 5, an air hole 7 is arranged inside the inner ring 6, a slide 8 is arranged on one side of the inner ring 6, four groups of slides 8 are arranged on one side of the inner ring 6, and the four groups of slides 8 are distributed in an annular manner, a reset spring 9 is fixed inside the slide 8, a slide rod 10 is fixed on one side of the reset spring 9, and a valve body 11 is fixed on one side of the slide rod 10;

[0025] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, when in use, the direction of the valve body 11 is the positive use direction. When the wind pressure is too high, the valve body 11 can be pressed, and the valve body 11 squeezes the return spring 9 and contacts the inner ring 6 to block the air hole 7. At the same time, if the roller 4 is manually rotated, the roller 4 can be driven to completely block the air slot 3, and the use of the roller 4 can be closed;

[0026] A limiting platform 12 is fixed on one side of the door frame 1. A plurality of limiting platforms 12 are fixed on one side of the door frame 1. The plurality of limiting platforms 12 are symmetrically distributed. A rubber pad 13 is fixed on one side of the limiting platform 12. A shaping spring 14 is arranged inside the rubber pad 13.

[0027] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when in use, multiple groups of limit platforms 12 are located on the inner side of the door frame 1, and are used to assist in limiting the explosion-proof door 2 when the explosion-proof door 2 is closed. At the same time, the rubber pads 13 on the surface of the limit platforms 12 can assist in shock absorption protection when closing the explosion-proof door 2, and the inner shaped springs 14 can enhance the use effect of the rubber pads 13;

[0028] A mounting frame 15 is fixed to one side of the explosion-proof door 2, a plug-in frame 16 is arranged on the inner side of the mounting frame 15, a non-slip convex strip 17 is fixed to the surface of the plug-in frame 16, a plurality of non-slip convex strips 17 are fixed to the surface of the plug-in frame 16, and the plurality of non-slip convex strips 17 are distributed at equal intervals, a dustproof plate 18 is fixed to one side of the plug-in frame 16, a dustproof net 19 is installed inside the dustproof plate 18, and a handle 20 is installed at one end of both sides of the explosion-proof door 2;

[0029] Specifically, Figure 1 and Figure 5 As shown, when in use, the dustproof plate 18 is docked with the mounting frame 15 with the assistance of the inner plug-in frame 16 and installed on the outer side of the air duct 3. The dustproof plate 18 and the dustproof net 19 can be used to prevent dust during ventilation.

[0030] Working principle: When in use, multiple sets of limit platforms 12 are installed on the inner side of the door frame 1, which cooperate with the rubber pads 13 to perform limit and shock absorption protection when the explosion-proof door 2 is closed. The dustproof plate 18 and the dustproof net 19 are clamped on the installation frame 15 with the help of the plug-in frame 16 on the inner side for use. They are located on the outer side of the wind slot 3 and can be used for dust filtration when the wind slot 3 is ventilated. In the later stage, the dustproof plate 18 can also be removed for maintenance. Multiple sets of wind slots 3 are located on the surface of the explosion-proof door 2 for use, and the inner side is movable. There is a roller 4 which can rotate. In the initial state, the valve body 11 is located at the outer side. When the wind pressure is too large, the valve body 11 can be pressed against the inner ring 6 to block the wind hole 7, thereby completing the closing of the wind slot 3. When in use, the roller 4 on the inner side of the wind slot 3 can also be rotated for adjustment. If the position of the valve body 11 is turned inward, the inner side can be protected from wind pressure, or it can be used for normally open ventilation on the outer side. If the roller 4 is rotated ninety degrees, the wind slot 3 can be blocked with the help of the roller 4, and the wind slot 3 is not used for ventilation.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An explosion-proof valve, comprising a door frame (1), an explosion-proof door (2) and a handle (20), characterized in that: An explosion-proof door (2) is movably installed inside the door frame (1), and an adjustable valve assembly is arranged on the surface of the explosion-proof door (2); The valve assembly comprises an air groove (3), a roller (4), a through groove (5), an inner ring (6), an air hole (7), a slide groove (8), a reset spring (9), a slide rod (10) and a valve body (11); the surface of the explosion-proof door (2) is provided with an air groove (3); the interior of the air groove (3) is movably mounted with a roller (4); the interior of the roller (4) is provided with a through groove (5); the interior of the through groove (5) is mounted with an inner ring (6); the interior of the inner ring (6) is provided with an air hole (7); a slide groove (8) is provided on one side of the inner ring (6); a reset spring (9) is fixed inside the slide groove (8); a slide rod (10) is fixed on one side of the reset spring (9); and the valve body (11) is fixed on one side of the slide rod (10).

2. The explosion-proof valve according to claim 1, characterized in that: A plurality of the air slots (3) are arranged on the surface of the explosion-proof door (2), and the plurality of the air slots (3) are distributed in parallel.

3. The explosion-proof valve according to claim 1, characterized in that: Four groups of the slide grooves (8) are arranged on one side of the inner ring (6), and the four groups of the slide grooves (8) are distributed in a ring shape.

4. The explosion-proof valve according to claim 1, characterized in that: A limiting platform (12) is fixed on one side inside the door frame (1), a rubber pad (13) is fixed on one side of the limiting platform (12), and a shaping spring (14) is arranged inside the rubber pad (13).

5. The explosion-proof valve according to claim 4, characterized in that: A plurality of the limiting platforms (12) are fixed on one side inside the door frame (1), and the plurality of limiting platforms (12) are symmetrically distributed.

6. The explosion-proof valve according to claim 1, characterized in that: A mounting frame (15) is fixed on one side of the explosion-proof door (2), a plug-in frame (16) is arranged on the inner side of the mounting frame (15), a non-slip convex strip (17) is fixed on the surface of the plug-in frame (16), a dustproof plate (18) is fixed on one side of the plug-in frame (16), and a dustproof net (19) is installed inside the dustproof plate (18).

7. The explosion-proof valve according to claim 6, characterized in that: A plurality of the anti-slip convex strips (17) are fixed on the surface of the plug-in frame (16), and the plurality of the anti-slip convex strips (17) are distributed at equal intervals.

8. The explosion-proof valve according to claim 1, characterized in that: A handle (20) is installed at one end of both sides of the explosion-proof door (2).

Images