CN217898921U

CN217898921U - Valve clack anti-collision structure of axial flow type check valve

Info

Publication number: CN217898921U
Application number: CN202221999832.5U
Authority: CN
Inventors: 韩泽海; 赵平
Original assignee: Dhv Valve & Foundry Suzhou Co ltd
Current assignee: Dhv Valve & Foundry Suzhou Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-11-25
Anticipated expiration: 2032-08-01

Abstract

The utility model relates to an axial-flow type check valve clack crashproof structure, including a valve body, the valve body is equipped with the support of a fusiformis, and the support pegs graft umbrella structure's valve clack, and one side that the valve clack is close to the support is connected with an at least first spring and a rubber buffer, and the one end of valve body is equipped with one in proper order nestedly and a clamping ring, and the valve body passes through screw fixed connection with the clamping ring, and the valve clack is equipped with a vertical annular plane, planar outer end department is equipped with an annular, the annular with the rubber buffer crimping. This axial-flow type check valve clack crashproof structure has the noise elimination shock attenuation, prevents the striking, and the easy access is examined and repaired, and the flow resistance advantage such as little.

Description

Valve clack anti-collision structure of axial flow type check valve

Technical Field

The utility model relates to an axial-flow check valve technical field, especially an axial-flow check valve clack crashproof structure.

Background

At present, the axial flow type check valve has the function of a common check valve, and is a preferred valve for oil and gas gathering and transportation pipe network systems, particularly for an oil transportation pump outlet at home and abroad. The valve clack of axial-flow check valve passes through the valve body support spacing when opening entirely usually, but when being used for the higher operating mode of pressure, because medium backpressure is big, in addition the medium impact, the striking of valve clack and support can be more serious, leads to the valve clack to warp, and sealed inefficacy.

Therefore, an anti-collision structure of the valve clack of the axial flow type check valve is developed for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose provides an axial-flow check valve clack crashproof structure in order to overcome prior art not enough, has the noise elimination shock attenuation, prevents the striking, and the easy access, flow resistance advantage such as little.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides an axial-flow type check valve clack crashproof structure, includes a valve body, the valve body is equipped with the support of a fusiformis, umbrella structure's valve clack is pegged graft to the support, the valve clack is close to one side of support is connected with an at least first spring and a rubber buffer, the one end of valve body is equipped with one in proper order nestedly and a clamping ring, the valve body with the clamping ring passes through screw fixed connection.

Preferably, the valve clack is provided with a vertical annular plane, an annular groove is formed in the outer end of the plane, and the annular groove is in compression joint with the rubber buffer pad.

Preferably, the plane is further provided with a plurality of counter bores, and the counter bores are fixedly connected with the first spring.

Preferably, one side of the support, which is close to the valve clack, is provided with an end face, and a convex column is arranged at the center of the end face.

Preferably, the convex column is sleeved with a second spring, one end of the second spring is abutted with the support, and the other end of the second spring is abutted with the valve clack.

Preferably, a horizontal through hole is formed in the center of the convex column, a push rod is inserted into the through hole, and one end of the push rod is fixedly connected with the valve clack.

Preferably, the valve body is provided with a T-shaped groove, the nesting is provided with a flange, and the T-shaped groove is abutted with the flange.

Preferably, the pressing ring is provided with a groove, and the groove is abutted to one end of the nesting.

Preferably, the nest is sleeved with a plurality of washers, one end of which abuts the flange.

Preferably, the valve flap is provided with an abutment surface which abuts against the nest.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model designs a damping spring, and the combined valve seat sealing structure of the hard seal and the soft seal has the effects of noise elimination and damping; the on-site overhaul of a user is facilitated; the unique axial flow shuttle type structure has the advantages of small flow resistance, large flow coefficient, small overall dimension and the like.

Drawings

FIG. 1 is the utility model discloses an axial-flow type check valve clack crashproof structure's schematic structure diagram.

Fig. 2 is an enlarged view of a portion a of fig. 1 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In fig. 1 to 2, an axial flow check valve clack anti-collision structure includes a valve body 6, a support 1, a clack 4, at least one first spring 2, a rubber buffer 3 and a second spring 5.

Inside support 1 that is equipped with a fusiformis of valve body 6, the fusiformis structure reduces the flow resistance, and 6 one end departments of valve body are equipped with a T-slot 61, and a valve clack 4 is pegged graft to support 1, and one side that valve clack 4 is close to support 1 is connected with a plurality of first springs 2 and a rubber buffer pad 3, is convenient for eliminate noise and the shock attenuation.

The valve flap 4 of the umbrella-shaped structure is provided with a vertical annular plane 41, an abutting surface 45 is arranged at the position, close to the nesting 8, of the valve flap 4, an annular groove 410 is arranged at the outer end of the plane 41, a counter bore 411 is arranged at the position, close to the inner position of the annular groove 410, the annular groove 410 is in compression joint with the rubber buffer cushion 3, and the abutting surface 45 abuts against the nesting 8. The counter bore 411 is arranged on the plane 41, the counter bore 411 is welded with one end of the first spring 2, and when the plane 41 of the valve clack 4 is abutted with the end face 11, the first spring 2 reduces vibration.

One side of the support 1 close to the valve flap 4 is provided with an end surface 11, the center of the end surface 11 is provided with a convex column 12, and the center of the convex column 12 is provided with a horizontal through hole 13. The convex column 12 is sleeved with a second spring 5, and the valve clack 4 and the nesting 8 are in compression joint under the force of the second spring 5. One end of the second spring 5 abuts against the support 1, and the other end of the second spring 5 abuts against the valve flap 4. One end of the push rod 42 is welded with the valve clack 4, the through hole 13 is inserted with the push rod 42, and the push rod 42 can move left and right in the through hole 13.

One end of the valve body 6 is sequentially provided with a nesting 8 and a pressing ring 7, the nesting 8 is provided with a flange 81, the nesting 8 is sleeved with a plurality of gaskets 9, the pressing ring 7 is provided with a groove 71, the valve body 6 is fixedly connected with the pressing ring 7 through screws, and the T-shaped groove 61 is abutted to the flange 81. Groove 71 abuts one end of nest 8 and one end of washer 9 abuts flange 81.

Welding the first spring 2 to the valve clack 4, then installing the first spring into the rubber buffer cushion 3, penetrating the valve clack 4 into the through hole 13 of the support 1, pressing the abutting surface 45 of the valve clack 4 and the nesting 8 by the second spring 5 under the action of spring force, and closing the valve; when valve clack 4 opened under hydraulic pressure, second spring 5 pressurized, first spring 2 and rubber buffer 3 respectively with terminal surface 11 butt, reduce vibrations, prevent valve clack 4 and 1 direct striking of support, satisfy spacing requirement, make the impact force reduce simultaneously.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides an axial-flow check valve clack crashproof structure which characterized in that: including a valve body (6), valve body (6) are equipped with support (1) of a fusiformis, support (1) is pegged graft a umbrella-type structure's valve clack (4), valve clack (4) are close to one side of support (1) is connected with an at least first spring (2) and a rubber buffer pad (3), the one end of valve body (6) is equipped with one in proper order nested (8) and a clamping ring (7), valve body (6) with clamping ring (7) are through screw fixed connection.

2. The axial flow check valve flap impact structure of claim 1, characterized in that the flap (4) is provided with a vertical annular flat surface (41), an annular groove (410) is provided at the outer end of the flat surface (41), and the annular groove (410) is pressed against the rubber cushion (3).

3. The axial flow check valve flap impact protection according to claim 2, characterized in that the plane (41) is further provided with a plurality of counter bores (411), the counter bores (411) being fixedly connected with the first spring (2).

4. The axial flow check valve flap impact protection according to claim 1, characterized in that the support (1) has an end surface (11) on the side close to the flap (4), and a boss (12) is provided at the center of the end surface (11).

5. The axial flow check valve flap impact protection according to claim 4, characterized in that the boss (12) is sleeved with a second spring (5), one end of the second spring (5) abuts against the support (1) and the other end abuts against the valve flap (4).

6. The axial flow check valve flap anti-collision structure according to claim 4, characterized in that a horizontal through hole (13) is formed at the center of the convex column (12), a push rod (42) is inserted into the through hole (13), and one end of the push rod (42) is fixedly connected with the flap (4).

7. The axial flow check valve flap impact protection according to claim 1, characterized in that the valve body (6) is provided with a T-shaped groove (61), the nest (8) is provided with a flange (81), and the T-shaped groove (61) abuts against the flange (81).

8. The axial flow check valve flap impact protection according to claim 1, characterized in that the pressure ring (7) is provided with a groove (71), the groove (71) abutting one end of the nest (8).

9. The axial flow check valve flap impact protection according to claim 7, characterized in that the nest (8) is sleeved with a plurality of washers (9), one end of the washers (9) abutting the flange (81).

10. The axial flow check valve flap impact protection according to claim 1, characterized in that the flap (4) is provided with an abutment surface (45), the abutment surface (45) abutting the nest (8).