Anti-jamming swing check valve

Abstract

The utility model discloses an anti-jamming swing check valve, and relates to the field of valves. The anti-jamming swing check valve comprises a valve body unit and a pollution discharge unit arranged below the valve body unit, the valve body unit comprises a valve body main body and a valve clack, a slide slope and a backflow slope are obliquely arranged on the inner bottom wall of the valve body main body, and a pollution discharge port is formed in the junction of the slide slope and the backflow slope. The valve clack is rotationally arranged in the valve body main body, the pollution discharge unit comprises a pollution discharge box, baffles and meshes, the pollution discharge box is installed in the pollution discharge opening, the two baffles are symmetrically arranged at the top of the pollution discharge box, and the meshes are selectively formed in the baffles. According to the anti-jamming swing check valve, the slide slope, the backflow slope and the drain outlet are designed in a matched mode, and meanwhile the baffles on the two sides are used for blocking impurities, so that the impurities are gathered on the baffles and enter the drain tank through the meshes to be collected, and the influence of the impurities in the valve body on rotation of the valve clack is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is anti -blocking type swing check valve. BACKGROUND

[0002] The valve body of swing check valve rotates around the pin shaft outside the valve body. When the medium flows forward, the valve disc is pushed open under the action of fluid pressure, and the valve is opened. When the medium stops flowing or flows reversely, the valve disc quickly closes under the action of self weight or reverse flow pressure, preventing the medium from flowing backward.

[0003] In the application of traditional swing check valve, impurities or particles are easily entered between the pin shaft of connecting rocker arm and the valve body. After these impurities or particles enter the pin shaft hole of the valve body, the rotation of the pin shaft is blocked, which affects the opening and closing action of the valve disc, and there is a leakage risk. In addition, when the medium in the pipeline system contains a certain amount of impurities, these impurities may accumulate around the valve disc, affecting the normal rotation of the valve disc, causing the valve to malfunction, and even damaging the valve. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides an anti-blocking swing check valve, which solves the problem that in the application of traditional swing check valve, impurities or particles are easily entered between the pin shaft of connecting rocker arm and the valve body. After these impurities or particles enter the pin shaft hole of the valve body, the rotation of the pin shaft is blocked, which affects the opening and closing action of the valve disc, and there is a leakage risk.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: an anti-blocking swing check valve, comprising a valve body unit and a blowdown unit arranged below the valve body unit, wherein the valve body unit comprises:

[0006] A valve body, the inner bottom wall of the valve body is inclined to form a landslide and a backflow slope, and a blowdown opening is formed at the junction of the landslide and the backflow slope;

[0007] A valve disc, which is rotatably arranged in the interior of the valve body and realizes the opening and closing of the valve by rotating the valve disc;

[0008] The blowdown unit comprises:

[0009] A blowdown tank is installed in the blowdown opening;

[0010] Two baffles are symmetrically arranged on the top of the blowdown tank;

[0011] Mesh holes are optionally formed on the baffles;

[0012] The impurities in the valve body are concentrated on the blowdown tank by the landslide and backflow slope, and the two side baffles block the impurities, so that the impurities are gathered on the baffles and enter the blowdown tank through the mesh holes to be collected, avoiding the influence of the impurities on the rotation of the valve disc.

[0013] Preferably, the liquid inlet and the liquid outlet are respectively fixedly installed on the two sides of the valve body.

[0014] Preferably, the valve cover is installed on the top end of the valve body through bolts.

[0015] Preferably, the sealing gasket is fixedly connected to the side surface of the valve disc through bolts, and the valve disc seals the liquid inlet through the sealing gasket.

[0016] Preferably, the reinforcing ribs are fixedly arranged on the other side of the valve disc.

[0017] Preferably, the rotating shaft is integrally arranged on the top of the valve disc, and the valve disc is rotatably connected to the valve body through the rotating shaft.

[0018] Preferably, the sealing groove is arranged in the bottom of the valve body and communicates with the blowdown port.

[0019] Preferably, the sealing plate is fixedly connected to the bottom of the blowdown tank and is fixedly connected in the sealing groove through bolts.

[0020] Preferably, the storage cavity is arranged in the blowdown tank.

[0021] The anti-blocking swing check valve has the following beneficial effects: the anti-blocking swing check valve is designed by cooperating the landslide, the backflow slope and the blowdown port, the two side baffles block the impurities, the impurities are gathered on the baffles and enter the blowdown tank through the mesh holes to be collected, the influence of the impurities in the valve body on the rotation of the valve disc is effectively avoided, the problem that the traditional swing check valve is blocked by the impurities entering the pin shaft hole to affect the rotation of the pin shaft, the opening and closing movement of the valve disc is affected, and there is a leakage risk is solved, and the operation reliability and service life of the valve are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 It is a whole structure schematic view of the present application.

[0024] Figure 2 It is a structural section view of the utility model;

[0025] Figure 3 It is a structural section view of the valve body main body of the utility model;

[0026] Figure 4 It is a structural section view of the pollution discharge unit of the utility model.

[0027] In the figure: 1, valve body unit;11, valve body main body;111, landslide;112, backflow slope;113, pollution discharge port;114, sealing groove;12, valve flap;13, liquid inlet interface;14, liquid outlet interface;15, valve cover;16, sealing pad;17, reinforcing rib;2, pollution discharge unit;21, pollution discharge tank;22, baffle;23, mesh;24, sealing plate;25, storage cavity. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantage of the embodiment of the application more clear, the technical scheme in the embodiment of the application is described clearly and completely, obviously, the described embodiment is a part of the embodiment of the application, rather than all the embodiments. Based on the embodiment in the application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the application.

[0029] The application embodiment provides a jam-preventing swing check valve, solves the problem that impurities or particles are easily entered between the pin shaft of the connecting rocker arm and the valve body in the application of the traditional swing check valve after long-term use. After the impurities or particles enter the pin shaft hole of the valve body, the rotation of the pin shaft is blocked, and then the opening and closing action of the valve flap is affected, and there is a leakage risk.

[0030] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.

[0031] The utility model embodiment discloses a jam-preventing swing check valve.

[0032] According to the drawings Figures 1-4 As shown in the figure, it comprises a valve body unit 1 and a pollution discharge unit 2 arranged below the valve body unit 1, and the valve body unit 1 comprises:

[0033] Valve body main body 11, the inner bottom wall of valve body main body 11 is inclined and is provided with landslide 111 and backflow slope 112, and the junction of landslide 111 and backflow slope 112 is provided with pollution discharge port 113;

[0034] Valve flap 12, which is rotatably arranged in the interior of valve body main body 11, and realizes the opening and closing of the valve by the rotation of valve flap 12;

[0035] The blow-off unit 2 comprises:

[0036] a blow-off box 21 installed in the blow-off port 113;

[0037] two baffle plates 22 symmetrically arranged on the top of the blow-off box 21;

[0038] a mesh 23 optionally arranged on the baffle plate 22;

[0039] The impurities inside the valve body 11 are concentrated on the blow-off box 21 by the landslide 111 and the backflow slope 112, and the two baffle plates 22 block the impurities, so that the impurities are gathered on the baffle plates 22 and enter the blow-off box 21 through the mesh 23 for collection, avoiding the influence of the impurities on the rotation of the valve disc 12.

[0040] The impurities are gathered on the baffle plates 22 and enter the blow-off box 21 through the mesh 23 for collection by the cooperation of the landslide 111, the backflow slope 112 and the blow-off port 113, and the two baffle plates 22 block the impurities, effectively avoiding the influence of the impurities inside the valve body on the rotation of the valve disc 12, solving the problem that the traditional swing check valve is blocked by the impurities entering the pin hole, causing the valve disc 12 to be affected in opening and closing action and having a leakage risk, and improving the operation reliability and service life of the valve.

[0041] Further, the liquid inlet 13 and the liquid outlet 14 are respectively fixedly installed on the two sides of the valve body 11.

[0042] Further, the valve cover 15 is bolted to the top end of the valve body 11.

[0043] Further, the sealing gasket 16 is bolted to the side of the valve disc 12, and the valve disc 12 seals the liquid inlet 13 through the sealing gasket 16.

[0044] The sealing gasket 16 is bolted to the side of the valve disc 12, and the valve disc 12 seals the liquid inlet 13 through the sealing gasket 16 when the valve is closed, ensuring the sealing performance of the valve.

[0045] Further, the reinforcing rib 17 is fixedly arranged on the other side of the valve disc 12.

[0046] The reinforcing rib 17 arranged on the valve disc 12 enhances the structural strength of the valve disc 12, so that the valve can withstand greater fluid pressure and working load, improving the stability and safety of the valve and prolonging the service life of the valve.

[0047] Further, the rotating shaft is integrally arranged on the top of the valve disc 12, and the valve disc 12 is rotationally connected with the valve body 11 through the rotating shaft.

[0048] Further, the bottom of the valve body 11 is provided with a sealing groove 114 communicated with the blowdown port 113.

[0049] Further, the bottom of the blowdown tank 21 is fixedly connected with a sealing plate 24, and the sealing plate 24 is fixedly connected in the sealing groove 114 through bolts.

[0050] The bottom of the blowdown tank 21 is fixedly connected with the sealing plate 24, and the sealing plate 24 is fixedly connected in the sealing groove 114 through bolts, so as to ensure the sealing between the blowdown tank 21 and the valve body 11 and prevent fluid leakage.

[0051] Further, the inside of the blowdown tank 21 is provided with a storage cavity 25.

[0052] The valve disc 12 is rotationally arranged in the inside of the valve body 11, when the medium flows from the liquid inlet 13, and the flow rate and hydraulic pressure are greater than the set valve opening pressure, the valve disc 12 will automatically rotate to the opening direction to be opened, and the medium normally flows; and when the flow rate and hydraulic pressure of the medium are less than the closing pressure or the medium flows reversely, the valve disc 12 will be closed, so as to ensure the unidirectional flow of the medium.

[0053] The inner bottom wall of the valve body 11 is obliquely provided with a sliding slope 111 and a backflow slope 112, and the blowdown port 113 is arranged at the junction of the two. In the medium flow process, the impurities in the inside of the valve body 11 will be concentrated to the blowdown port 113 along the sliding slope 111 and the backflow slope 112. The blowdown tank 21 is installed in the blowdown port 113, and the two baffles 22 are symmetrically arranged at the top of the blowdown tank 21, and the mesh holes 23 are selectively arranged on the baffles 22. The impurities can enter the blowdown tank 21 through the mesh holes 23 to be collected, so as to avoid the influence of the impurities on the rotation of the valve disc 12.

[0054] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A non-jamming swing check valve comprising a valve body unit (1) and a blowdown unit (2) provided below the valve body unit (1), characterized in that, The valve body unit (1) comprises: a valve body (11), an inner bottom wall of which is obliquely provided with a sliding slope (111) and a backflow slope (112), and a junction of the sliding slope (111) and the backflow slope (112) is provided with a blowdown port (113); a valve disc (12) rotatably arranged in the valve body (11) and enabling opening and closing of the valve by rotation of the valve disc (12); a blowdown unit (2) comprising: a blowdown tank (21) installed in the blowdown port (113); two baffle plates (22) symmetrically arranged on the top of the blowdown tank (21); a mesh (23) optionally provided on the baffle plate (22); the sliding slope (111) and the backflow slope (112) enable impurities in the valve body (11) to be concentrated on the blowdown tank (21), and the two baffle plates (22) block the impurities, so that the impurities are gathered on the baffle plates (22) and enter the blowdown tank (21) through the mesh (23) to be collected, avoiding the impurities from affecting rotation of the valve disc (12).

2. The anti-seizing swing check valve according to claim 1, wherein two liquid inlet interfaces (13) and liquid outlet interfaces (14) are respectively fixedly installed on the two sides of the valve body (11).

3. The anti-seizing swing check valve of claim 1, wherein a valve cover (15) is bolted to the top end of the valve body (11).

4. The anti-seizing swing check valve of claim 3, wherein a sealing gasket (16) is bolted to the side of the valve disc (12), and the valve disc (12) seals the liquid inlet interface (13) by the sealing gasket (16).

5. The anti-seizing swing check valve of claim 1, wherein a reinforcing rib (17) is fixedly arranged on the other side of the valve disc (12).

6. The anti-seizing swing check valve of claim 1, wherein a rotating shaft is integrally arranged on the top of the valve disc (12), and the valve disc (12) is rotatably connected with the valve body (11) by the rotating shaft.

7. The anti-seizing swing check valve of claim 1, wherein a sealing groove (114) is provided in the bottom of the valve body (11) and communicates with the blowdown port (113).

8. The anti-seizing swing check valve of claim 7, wherein, a sealing plate (24) is fixedly connected to the bottom of the blowdown tank (21) and bolted in the sealing groove (114).

9. The non-clogging swing check valve of claim 1, wherein, a storage cavity (25) is provided in the blowdown tank (21).

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