CN220102270U

CN220102270U - Silencing check valve

Info

Publication number: CN220102270U
Application number: CN202321685187.4U
Authority: CN
Inventors: 朴东升; 李晓军; 敬慎俊; 张万云; 孙哲; 朱凌丽
Original assignee: Shanghai Sino Korea Ez Joint Valve Co ltd
Current assignee: Shanghai Yijiete Intelligent Technology Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-11-28
Anticipated expiration: 2033-06-29

Abstract

The utility model discloses a silencing check valve, which is characterized by comprising a valve body and a valve core; the valve core is arranged in the valve body in a sliding way. The silencing check valve disclosed by the utility model has the advantages that the sliding stroke of the valve core is short, so that the valve core can be rapidly closed when a pump is stopped, the generation of a water hammer effect is prevented, and huge noise is not generated.

Description

Silencing check valve

Technical Field

The utility model relates to the field of valves, in particular to a silencing check valve.

Background

The check valve is a valve with a circular valve clack as an opening and closing part and can stop the medium from flowing backwards by the action of the self weight and the medium pressure. The check valve in the prior art can not be closed quickly when the pump is stopped because of long opening and closing stroke of the valve clack, so that huge water hammer sound can be generated, and noise pollution is caused to the surrounding environment.

Disclosure of Invention

The utility model particularly provides a silencing check valve.

The utility model provides a silencing check valve, which comprises a valve body and a valve core; the valve core is arranged in the valve body in a sliding way.

Preferably, the valve core comprises a valve clack (111) and a valve shaft; the valve shaft comprises a first shaft body (110), a second shaft body (109) and a third shaft body (103); the first shaft body (110), the second shaft body (109) and the third shaft body (103) are sequentially connected to form a ladder shape; the valve clack (111) is sleeved on the first shaft body (110) through a shaft sleeve and is in sliding connection with the first shaft body (110).

Preferably, the silencing check valve provided by the utility model further comprises a spring (112); the spring (112) is sleeved on the first shaft body (110); one end of the spring (112) is clamped at the top of the valve clack (111), and the other end of the spring is clamped with the bottom of the second shaft body (109).

Preferably, the valve body comprises an arc-shaped first ring body (104) and an arc-shaped second ring body (105); the first ring body (104) is coaxially arranged on the top surface of the second ring body (105); the first ring body (104) and the second ring body (105) are integrally formed into a waist drum shape; a first flange plate (101) is fixed at the top of the first ring body (104); a second flange plate (106) is fixed at the bottom of the second ring body (105); the valve shaft is arranged at the center of the valve body; the side wall of the third shaft body (103) is fixed with the inner wall of the first flange plate (101) through a plurality of first connecting ribs (102); the side wall of the first shaft body (110) close to the bottom is fixed with the inner wall of the second flange plate (106) through a plurality of second connecting ribs (108).

Preferably, the first connecting rib (102) and the second connecting rib (108) are cylindrical.

Preferably, the valve clack (111) is of an arc umbrella-shaped structure; the inner wall of the second ring body (105) is provided with an annular convex rib (113) along the circumferential direction of the second ring body; the peripheral dimension of the valve flap (111) is larger than the inner diameter of the annular rib (113).

Preferably, the silencing check valve provided by the utility model further comprises a plurality of reinforcing ribs (107); the plurality of reinforcing ribs (107) are arrayed around the first shaft body (110); one end of the reinforcing rib (107) is fixed with the outer wall of the first shaft body (110), and the other end of the reinforcing rib is fixed with the inner wall of the annular rib (113).

Preferably, the reinforcing rib (107) is plate-shaped; one end of the reinforcing rib (107) is wider than the other end; one wider end of the reinforcing rib (107) is clamped with the annular convex rib (113).

Preferably, the first flange (101), the valve body and the second flange (106) are integrally formed.

The silencing check valve provided by the utility model has the advantages that the sliding stroke of the valve core is short, so that the valve core can be rapidly closed when a pump is stopped, the generation of a water hammer effect is prevented, and huge noise is not generated.

Drawings

FIG. 1 is a schematic view of a first view of a muffler check valve according to the present utility model;

FIG. 2 is a schematic view of a second view angle structure of the muffler check valve provided by the present utility model;

FIG. 3 is a schematic view of a third view of the muffler check valve provided by the present utility model;

FIG. 4 is a schematic view of a first view cross-sectional structure of the noise elimination check valve according to the present utility model;

fig. 5 is a schematic view of a second view cross-sectional structure of the noise elimination check valve provided by the utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, the silencing check valve provided in the present embodiment includes a valve body and a valve core; the valve core is arranged in the valve body in a sliding way. It can be appreciated by those skilled in the art that the silencing check valve provided in this embodiment has a short sliding stroke, so that when the pump is stopped, the valve core can be quickly closed to prevent the occurrence of the water hammer effect, and thus, no huge noise is generated.

Further, the valve core comprises a valve flap 111 and a valve shaft; the valve shaft comprises a first shaft body 110, a second shaft body 109 and a third shaft body 103; the first shaft body 110, the second shaft body 109 and the third shaft body 103 are sequentially connected to form a step shape; the valve flap 111 is sleeved on the first shaft body 110 through a shaft sleeve and is slidably connected with the first shaft body 110. It will be appreciated by those skilled in the art that the sliding distance of the valve flap 111 is limited by the stepped shape formed between the first shaft body 110 and the second shaft body 109, so that when the pump is stopped, the valve flap 111 can be rapidly closed by means of its own gravity, thereby preventing the occurrence of the water hammer effect.

Further, the silencing check valve provided in the present embodiment further includes a spring 112; the spring 112 is sleeved on the first shaft body 110; one end of the spring 112 is clamped at the top of the valve clack 111, and the other end is clamped with the bottom of the second shaft body 109. It will be appreciated by those skilled in the art that the spring 112 first further reduces the sliding distance of the flap 111 and the second accelerates the return closure of the flap 111, thereby further improving the silencing effect of the silencing check valve provided by the present embodiment.

Further, the valve body comprises an arc-shaped first ring body 104 and an arc-shaped second ring body 105; the first ring body 104 is coaxially arranged on the top surface of the second ring body 105; the first ring body 104 and the second ring body 105 are integrally formed in a waist drum shape; a first flange plate 101 is fixed on the top of the first ring body 104; a second flange 106 is fixed at the bottom of the second ring 105; the valve shaft is arranged at the center of the valve body; the side wall of the third shaft body 103 is fixed with the inner wall of the first flange plate 101 through a plurality of first connecting ribs 102; the side wall of the first shaft body 110 near the bottom is fixed to the inner wall of the second flange 106 by a plurality of second connecting ribs 108. As will be appreciated by those skilled in the art, by the valve shaft, the valve flap 111 is ensured to slide in the axial direction of the valve shaft, thereby ensuring that the valve flap 111 is opened and closed quickly.

Further, the first connecting rib 102 and the second connecting rib 108 are both cylindrical. Those skilled in the art will appreciate that the cylindrical configuration is advantageous for fluid flow therethrough.

Further, the valve clack 111 has an arc umbrella-shaped structure; the inner wall of the second ring body 105 is provided with an annular convex rib 113 along the circumferential direction; the outer peripheral dimension of the valve flap 111 is greater than the inner diameter of the annular ridge 113. It will be appreciated by those skilled in the art that the opening and closing of the muffler check valve provided in this embodiment is achieved by the opening and closing of the valve flap 111 and the annular rib 113.

Further, the silencing check valve provided in the present embodiment further includes a plurality of reinforcing ribs 107; a plurality of the reinforcing ribs 107 are arrayed around the first shaft 110; one end of the reinforcing rib 107 is fixed to the outer wall of the first shaft body 110, and the other end is fixed to the inner wall of the annular rib 113. It will be appreciated by those skilled in the art that the reinforcing rib 107 makes the structure of the annular rib 113 more firm, and prevents the annular rib 113 from falling off due to multiple impacts of the valve flap 111, thereby improving the service life of the noise elimination check valve provided in the present embodiment.

Further, the reinforcing rib 107 is plate-shaped; one end of the reinforcing rib 107 is wider than the other end; the wider end of the reinforcing rib 107 is clamped with the annular rib 113. It will be appreciated by those skilled in the art that such a configuration, on the one hand, does not interfere with the inflow of the backflow, and on the other hand, further enhances the connection of the annular rib 113 to the second ring 105 by increasing the contact surface of the rib 107 with the annular rib 113.

Further, the first flange 101, the valve body, and the second flange 106 are integrally formed.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A silencing check valve is characterized by comprising a valve body and a valve core; the valve core is arranged in the valve body in a sliding way;

the valve core comprises a valve clack (111) and a valve shaft; the valve shaft comprises a first shaft body (110), a second shaft body (109) and a third shaft body (103); the first shaft body (110), the second shaft body (109) and the third shaft body (103) are sequentially connected to form a ladder shape; the valve clack (111) is sleeved on the first shaft body (110) through a shaft sleeve and is in sliding connection with the first shaft body (110);

also comprises a spring (112); the spring (112) is sleeved on the first shaft body (110); one end of the spring (112) is clamped at the top of the valve clack (111), and the other end of the spring is clamped with the bottom of the second shaft body (109);

the valve body comprises an arc-shaped first ring body (104) and an arc-shaped second ring body (105); the first ring body (104) is coaxially arranged on the top surface of the second ring body (105); the first ring body (104) and the second ring body (105) are integrally formed into a waist drum shape; a first flange plate (101) is fixed at the top of the first ring body (104); a second flange plate (106) is fixed at the bottom of the second ring body (105); the valve shaft is arranged at the center of the valve body; the side wall of the third shaft body (103) is fixed with the inner wall of the first flange plate (101) through a plurality of first connecting ribs (102); the side wall of the first shaft body (110) close to the bottom is fixed with the inner wall of the second flange plate (106) through a plurality of second connecting ribs (108).

2. The muffling check valve of claim 1, wherein the first connecting bead (102) and the second connecting bead (108) are each cylindrical.

3. The muffling check valve of claim 2, wherein the valve flap (111) is of an arcuate umbrella-like structure; the inner wall of the second ring body (105) is provided with an annular convex rib (113) along the circumferential direction of the second ring body; the peripheral dimension of the valve flap (111) is larger than the inner diameter of the annular rib (113).

4. The muffling check valve of claim 3, further comprising a plurality of ribs (107); the plurality of reinforcing ribs (107) are arrayed around the first shaft body (110); one end of the reinforcing rib (107) is fixed with the outer wall of the first shaft body (110), and the other end of the reinforcing rib is fixed with the inner wall of the annular rib (113).

5. The muffler check valve as defined in claim 4, wherein the reinforcing rib (107) is plate-shaped; one end of the reinforcing rib (107) is wider than the other end; one wider end of the reinforcing rib (107) is clamped with the annular convex rib (113).

6. The muffling check valve of claim 5, wherein the first flange (101), valve body, and second flange (106) are integrally formed.