Civil air defense anti-explosion overpressure exhaust valve

Abstract

The utility model relates to the technical field of valves, in particular to a civil air defense anti-explosion overpressure exhaust valve which comprises a connecting frame, a sealing door is attached to one end of the connecting frame, a first fixing ring is fixedly connected to the inner wall of the connecting frame, a sealing ring is fixedly connected to the upper end of the connecting frame, and the lower end of the sealing ring extends to the top end of the first fixing ring. One side of the sealing ring is attached to the outer wall of the sealing door, a first connecting groove is formed in the side, attached to the sealing door, of the sealing ring, and a plurality of elastic rings are fixedly connected to an inner cavity of the first connecting groove. Compared with the prior art, the sealing performance of the connecting frame and the sealing door is enhanced, the problem of gas leakage is reduced, and long-term normal use of the valve is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially relates to a civil air defense explosion -proof overpressure exhaust valve. BACKGROUND

[0002] Exhaust valve is a kind of valve that separates exhaust from turbine on turbocharged engine system, and the separation of exhaust reduces the speed of turbine and the rotation speed of compressor, and the main function of exhaust valve is to stabilize the boost pressure of turbocharged system to protect engine and turbocharger, and the exhaust valve is controlled by exhaust valve actuator, and the rotating device is controlled by the pressure of intake manifold.

[0003] In the prior art, the patent with the announcement number CN213017932U proposes an explosion-proof overpressure exhaust valve, an electric switch is added, when there are many valve bodies in the project, or the personnel cannot reach the valve body installation site, the electric switch can be used to close the device in batches in a short time, to meet the needs of emergency situation in wartime, and improve personnel safety, but in actual application, when the valve is used, the internal pressure of the valve is higher than the external pressure of the valve, so that the internal and external pressures of the valve are different, so that the valve is pushed by gas for a long time, which reduces the sealing property of the valve, so that the valve is prone to gas leakage when used, therefore, the utility model discloses a civil air defense explosion -proof overpressure exhaust valve. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims at providing a civil air defense explosion -proof overpressure exhaust valve to solve the problem of valve gas leakage.

[0005] In order to achieve the above purpose, the utility model provides a civil air defense explosion -proof overpressure exhaust valve, which comprises a connecting frame, one end of the connecting frame is attached with a sealing door, the inner wall of the connecting frame is fixedly connected with a first fixed ring, the upper end of the connecting frame is fixedly connected with a sealing ring, the lower end of the sealing ring extends to the top end of the first fixed ring, one side of the sealing ring is attached with the outer wall of the sealing door, the side, where the sealing ring is attached with the sealing door, is provided with a first connecting groove, and the inner cavity of the first connecting groove is fixedly connected with a plurality of elastic rings.

[0006] Preferably, one end of the connecting frame is rotatably connected with a connecting rod, and the sealing door is rotatably connected with the connecting rod of the connecting frame.

[0007] Preferably, the sealing door comprises two hollow hemispheres, the diameters of the two hollow hemispheres are different, and the two hollow hemispheres are fixedly connected in overlap.

[0008] Preferably, the first connecting groove comprises a plurality of annular connecting grooves and an annular communication groove.

[0009] Preferably, the bottom end of the sealing ring is provided with a plurality of second connecting grooves, the middle part of the first fixing ring is provided with a first air hole, the upper end of the connecting frame is provided with a plurality of second air holes, the second connecting grooves, the first air hole and the second air holes are communicated, the first air hole is communicated with the inner cavity of the connecting frame, the second connecting grooves are communicated with the first connecting grooves, the inner wall of the second air hole is fixedly connected with a second fixing ring and a third fixing ring, one end of the second fixing ring is fixedly connected with a spring, one end of the spring is fixedly connected with a sealing plate, one end of the sealing plate is attached to the third fixing ring, and the third fixing ring is located on one side of the first air hole.

[0010] Preferably, the upper end of the second air hole penetrates to the outside of the connecting frame, and the first air hole is a T-shaped groove.

[0011] The utility model discloses the beneficial effect has: through the position of connecting frame fixed first fixed ring, make connecting frame and first fixed ring fixed sealing ring's position, make connecting frame through sealing ring and sealing door attach, make the attach of connecting frame and sealing door be close, and the better sealing performance, through the outer wall of sealing ring and sealing door attach after will extrude the elastic ring in first connecting groove, make the elastic ring produce deformation, thereby make the elastic ring in the attach process of connecting frame and sealing door will produce the effect of pushing first connecting groove and sealing door attach, strengthen the attach close density of sealing ring and sealing door, thereby strengthen the sealing performance of connecting frame and sealing door, reduce the problem of gas leakage, guarantee the long -term normal use of valve, improve the service life.

[0012] When the gas pressure in the first air hole is too large, the sealing plate will be pushed to extrude the spring, so that the gas passes through the middle part of the third fixing ring, passes between the sealing plate and the second air hole, and then passes through the second air hole to flow to the outside of the connecting frame, so that the gas pressure in the inner cavity of the connecting frame is reduced, thereby reducing the explosion of the gas in the connecting frame, and improving the use safety of the gas valve. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Figure 1 It is the schematic diagram of the embodiment of the utility model;

[0015] Figure 2 It is the partial cutaway three-dimensional structure schematic diagram of the connecting frame of the utility model;

[0016] Figure 3The partial sectional structure schematic view of the sealing door is shown in the utility model.

[0017] Figure 4 The utility model discloses Figure 3 The enlarged structure schematic view of A place.

[0018] Marked as in the drawing:

[0019] 1, connecting frame, 2, sealing door, 3, first fixed ring, 4, sealing ring, 5, first connecting groove, 6, elastic ring, 7, second connecting groove, 8, first air hole, 9, second air hole, 10, second fixed ring, 11, third fixed ring, 12, sealing plate, 13, spring. Specific implementation

[0020] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is in combination with specific embodiment, and the utility model is further detailed.

[0021] It is to be noted that, unless otherwise defined, the technical terms or scientific terms used in the utility model should be the usual meaning understood by the person skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and its equivalent, and do not exclude other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship can also change accordingly.

[0022] As Figures 1-4As shown, a human defense explosion overpressure exhaust valve, including the connecting frame 1, one end of the connecting frame 1 is attached to the sealing door 2, the inner wall of the connecting frame 1 is fixedly connected with the first fixed ring 3, the upper end of the connecting frame 1 is fixedly connected with the sealing ring 4, the lower end of the sealing ring 4 extends to the top end of the first fixed ring 3, one side of the sealing ring 4 is attached to the outer wall of the sealing door 2, the side of the sealing ring 4 attached to the sealing door 2 is provided with the first connecting groove 5, the inner cavity of the first connecting groove 5 is fixedly connected with a plurality of elastic rings 6, one end of the connecting frame 1 is rotatably connected with the connecting rod, the sealing door 2 is rotatably connected with the connecting rod of the connecting frame 1, the sealing door 2 comprises two hollow hemispheres, the diameters of the two hollow hemispheres are different, and the two hollow hemispheres are fixedly connected in overlap, the first connecting groove 5 comprises a plurality of annular connecting grooves and an annular communication groove, in use, the one end of the connecting frame 1 is attached to the sealing door 2, the inner wall of the connecting frame 1 is fixedly connected with the first fixed ring 3, the upper end of the connecting frame 1 is fixedly connected with the sealing ring 4, the lower end of the sealing ring 4 extends to the top end of the first fixed ring 3, so that the connecting frame 1 and the sealing door 2 are combined into an exhaust valve, the position of the first fixed ring 3 is fixed by the connecting frame 1, the position of the sealing ring 4 is fixed by the connecting frame 1 and the first fixed ring 3, the connecting frame 1 is attached to the sealing door 2 through the sealing ring 4, the attachment between the connecting frame 1 and the sealing door 2 is tight, and the sealing performance is better, one side of the sealing ring 4 is attached to the outer wall of the sealing door 2, the side of the sealing ring 4 attached to the sealing door 2 is provided with the first connecting groove 5, the inner cavity of the first connecting groove 5 is fixedly connected with a plurality of elastic rings 6, so that the elastic rings 6 in the first connecting groove 5 are extruded after the sealing ring 4 is attached to the outer wall of the sealing door 2, the elastic rings 6 are deformed, so that the elastic rings 6 push the first connecting groove 5 to be attached to the sealing door 2 during the attachment of the connecting frame 1 and the sealing door 2, the attachment tightness of the sealing ring 4 and the sealing door 2 is enhanced, the sealing performance of the connecting frame 1 and the sealing door 2 is enhanced, the long-term normal use of the valve is ensured, the service life is improved, the sealing door 2 comprises two hollow hemispheres, the diameters of the two hollow hemispheres are different, and the two hollow hemispheres are fixedly connected in overlap, so that a hole is formed between the two hollow hemispheres of the sealing door 2, thereby increasing the impact amount that can be absorbed by the sealing door 2 when the sealing door 2 is impacted by high-pressure gas, reducing the deformation of the sealing door 2 at the attachment position with the connecting frame 1, thereby ensuring the subsequent normal use of the sealing door 2 and improving the service life of the sealing door 2, the first connecting groove 5 comprises a plurality of annular connecting grooves and an annular communication groove, so that the gas pressure in the first connecting groove 5 is uniform after the sealing door 2 and the sealing ring 4 are attached, thereby ensuring that the attachment effect of the sealing ring 4 and the sealing door 2 is good.

[0023] As a preferred embodiment in the present embodiment, as Figure 2 and Figure 4As shown, the bottom end of the sealing ring 4 is provided with a plurality of second connecting grooves 7, the middle part of the first fixed ring 3 is provided with a first air hole 8, the upper end of the connecting frame 1 is provided with a plurality of second air holes 9, the second connecting grooves 7, the first air hole 8 and the second air hole 9 are communicated, the first air hole 8 is communicated with the inner cavity of the connecting frame 1, the second connecting grooves 7 are communicated with the first connecting grooves 5, the inner wall of the second air hole 9 is fixedly connected with a second fixed ring 10 and a third fixed ring 11, one end of the second fixed ring 10 is fixedly connected with a spring 13, one end of the spring 13 is fixedly connected with a sealing plate 12, one end of the sealing plate 12 is attached to the third fixed ring 11, the third fixed ring 11 is located on one side of the first air hole 8, the upper end of the second air hole 9 penetrates to the outside of the connecting frame 1, the first air hole 8 is a T-shaped groove, the diameter value of the sealing plate 12 is greater than the inner wall diameter value of the third fixed ring 11 and less than the diameter value of the second air hole 9, by the bottom end of the sealing ring 4 being provided with a plurality of second connecting grooves 7, the middle part of the first fixed ring 3 being provided with a first air hole 8, the upper end of the connecting frame 1 being provided with a plurality of second air holes 9, the second connecting grooves 7, the first air hole 8 and the second air hole 9 being communicated, the first air hole 8 being communicated with the inner cavity of the connecting frame 1, the second connecting grooves 7 being communicated with the first connecting grooves 5, the gas pressure in the first connecting grooves 5, the first air hole 8 and the connecting frame 1 is the same, the gas in the first air hole 8 can enter the second air hole 9, by the inner wall of the second air hole 9 being fixedly connected with a second fixed ring 10 and a third fixed ring 11, one end of the second fixed ring 10 being fixedly connected with a spring 13, the other end of the spring 13 being fixedly connected with a sealing plate 12, one end of the sealing plate 12 being attached to the third fixed ring 11, the third fixed ring 11 being located on one side of the first air hole 8, when the gas pressure in the first air hole 8 is too large, the sealing plate 12 is pushed to extrude the spring 13, so that the gas passes through the middle part of the third fixed ring 11, passes between the sealing plate 12 and the second air hole 9, and then flows to the outside of the connecting frame 1 through the second air hole 9, so that the gas pressure in the inner cavity of the connecting frame 1 is reduced, thereby reducing the explosion of the gas in the connecting frame 1, improving the use safety of the gas valve, the upper end of the second air hole 9 penetrates to the outside of the connecting frame 1, so that the gas in the connecting frame 1 can flow out of the inner cavity of the connecting frame 1 through the first air hole 8 and the second air hole 9, releasing part of the gas and reducing the pressure of the stamping gas, thereby prolonging the service life of the valve, the first air hole 8 is a T-shaped groove, so that the gas in the connecting frame 1, the first air hole 8, the first connecting grooves 5 and the second air hole 9 can flow, and the diameter value of the sealing plate 12 is greater than the inner wall diameter value of the third fixed ring 11 and less than the diameter value of the second air hole 9, so that the sealing plate 12 and the gas can move in the second air hole 9.

[0024] Those skilled in the art will understand that the above discussion of any of the embodiments is merely exemplary in nature and is not intended to imply that the scope of the present application, including the claims, is limited to these examples; the above embodiments or technical features among different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0025] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications and variations are intended to be encompassed by the appended claims.

Claims

1. A civil air defense anti-explosion overpressure exhaust valve comprising a connecting frame (1), characterized in that, One end of the connecting frame (1) is attached with a sealing door (2), the inner wall of the connecting frame (1) is fixedly connected with a first fixed ring (3), the upper end of the connecting frame (1) is fixedly connected with a sealing ring (4), the lower end of the sealing ring (4) extends to the top end of the first fixed ring (3), one side of the sealing ring (4) is attached with the outer wall of the sealing door (2), the side of the sealing ring (4) attached with the sealing door (2) is provided with a first connecting groove (5), the inner cavity of the first connecting groove (5) is fixedly connected with a plurality of elastic rings (6).

2. The civil defense anti-explosion overpressure exhaust valve according to claim 1, characterized in that, One end of the connecting frame (1) is rotatably connected with a connecting rod, the sealing door (2) is rotatably connected with the connecting rod of the connecting frame (1).

3. The civil defense anti-explosion overpressure exhaust valve according to claim 1, characterized in that, The sealing door (2) comprises two hollow hemispheres, the diameters of the two hollow hemispheres are different, and the two hollow hemispheres are fixedly connected in overlap.

4. The civil defense explosion pressure relief valve according to claim 1, wherein The first connecting groove (5) comprises a plurality of annular connecting grooves and an annular communication groove.

5. The civil defense explosion pressure relief valve according to claim 1, wherein The bottom end of the sealing ring (4) is provided with a plurality of second connecting grooves (7), the middle part of the first fixed ring (3) is provided with a first air hole (8), the upper end of the connecting frame (1) is provided with a plurality of second air holes (9), the second connecting grooves (7), the first air hole (8) and the second air holes (9) are communicated, the first air hole (8) is communicated with the inner cavity of the connecting frame (1), the second connecting grooves (7) are communicated with the first connecting groove (5), the inner wall of the second air hole (9) is fixedly connected with a second fixed ring (10) and a third fixed ring (11), one end of the second fixed ring (10) is fixedly connected with a spring (13), one end of the spring (13) is fixedly connected with a sealing plate (12), one end of the sealing plate (12) is attached with the third fixed ring (11), and the third fixed ring (11) is located on one side of the first air hole (8).

6. The civil defense explosion pressure relief valve according to claim 5, wherein The upper end of the second air hole (9) penetrates to the outside of the connecting frame (1), and the first air hole (8) is a T-shaped groove.

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