CN218845212U

CN218845212U - Swing check valve

Info

Publication number: CN218845212U
Application number: CN202223317470.XU
Authority: CN
Inventors: 王明华; 齐日生; 黎小容
Original assignee: Positive Ball Valve Group Co ltd
Current assignee: Positive Ball Valve Group Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-11
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a swing check valve, including valve body, valve gap, disk seat, valve clack and rocking arm, the valve gap passes through bolt fixed connection in the valve body top, the valve body includes the runner and is located the entrance point and the exit end of runner both sides, and the valve body runner is provided with slowly closing mechanism in exit end one side, slowly closing mechanism includes vertical mounting panel, buffering arm, piston rod, movable sleeve and compression spring, and the movable sleeve slope is installed in vertical mounting panel, and the piston rod is slidably mounted in the movable sleeve and the piston rod is provided with in the movable sleeve inner chamber compression spring, and vertical mounting panel inclines towards valve clack one side and is provided with the buffering arm, and the one end of buffering arm is articulated bottom vertical mounting panel, the other end of buffering arm is articulated with the piston rod tip; the utility model discloses reduce the impact of valve clack to the valve body, the noise reduction prolongs the life of valve clack.

Description

Swing check valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a swing check valve.

Background

The check valve is a valve with a round valve clack and acts by self weight and medium pressure to block medium backflow, belongs to the automatic valve class, and is also called a check valve, a one-way valve, a backflow valve or an isolation valve, and the valve clack motion mode is divided into a lifting type and a swing type; the swing check valve is provided with a valve clack which is obliquely arranged and can rotate around a shaft, the working principle is similar to that of a lifting check valve, the check valve is commonly used as a bottom valve of a water pumping device, backflow of water can be prevented, and the stop valve are combined for use and can play a role in safety isolation.

Patent CN204717065U discloses a swing check valve, including hollow valve body, the valve body middle part is provided with disk seat, valve clack, the valve clack is articulated through a rocker and valve body, the valve clack is contradicted with the disk seat to separate the valve body for water intake portion, play water portion, the disk seat is provided with a plurality of annular grooves towards the one side of valve clack, the valve clack towards the one side of disk seat be provided with annular groove complex annular protruding, annular groove pegs graft with the cooperation of annular protruding the valve clack seals the disk seat aims at providing a sealing performance is good, valve clack and the stand wear and tear swing check valve of disk seat.

The problems presented in the above patents: the valve clack is at the in-process of opening, and following two kinds of circumstances can appear in the too big fluid impact, and one is valve clack and valve body inner wall collision cause the valve body inner wall wearing and tearing, and two of it strikes the too big connecting axle fracture that causes the hinged end of valve clack, improves valve body inner wall structure based on this problem.

Disclosure of Invention

The utility model aims at providing a swing check valve in order to overcome the shortcoming and not enough that prior art exists.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a swing check valve, includes valve body, valve gap, disk seat, valve clack and rocking arm, the valve gap passes through bolt fixed connection in the valve body top, the valve body includes the runner and is located the entrance point and the exit end of runner both sides, the valve body is provided with in entrance point one side the disk seat, the valve body inner wall articulates there are rocking arm and rocking arm towards disk seat one side fixedly connected with the valve clack, the valve body runner is provided with slowly closing mechanism in exit end one side, slowly closing mechanism includes vertical mounting panel, buffering arm, piston rod, movable sleeve and compression spring, movable sleeve slope mounting is in vertical mounting panel, piston rod slidable mounting is provided with in movable sleeve and piston rod movable sleeve inner chamber in movable sleeve compression spring, vertical mounting panel is provided with the buffering arm towards valve clack lopsidedness, the one end and the vertical mounting panel bottom of buffering arm are articulated, the other end and the tailpiece of the piston rod portion of buffering arm are articulated.

As a preferred technical scheme of the utility model, the valve clack back is provided with the extension, the buffer arm is provided with the spacing portion that is used for blockking the extension towards valve clack one side.

As a preferred technical scheme of the utility model, valve body runner bottom is provided with arc sleeve pipe and arc pipe that the radian equals, arc pipe slidable mounting is provided with the retaining ring in arc sleeve pipe and arc pipe outer wall, arc sleeve pipe and arc pipe are to buffering arm one side bending, arc sheathed tube one end is kept away from to the arc pipe and the buffering arm is articulated.

As a preferred technical scheme of the utility model, vertical mounting panel is platelike and is located valve body exit end central point and puts the department.

As a preferred technical scheme of the utility model, the valve clack is provided with the arc towards entrance point one side, the arc middle part is towards entrance point one side protrusion.

As a preferred technical scheme of the utility model, the roof is provided with the fixed plate in the valve body, there is the linking arm through bolted connection on the fixed plate, the rotating pin connection is passed through on linking arm lower extreme and the swing arm.

As an optimized technical scheme of the utility model, the valve gap top is provided with the eye bolt.

To sum up, the beneficial effects of the utility model are that: can cushion the valve clack through setting up the buffering arm, receive fluid impact to open to the rear when the valve clack, fluid impact too big results in the valve clack and the collision of valve body inner wall, seriously cause the wearing and tearing of valve body inner wall to drop or the cracked problem of rocking arm hinged end, this application is through setting up parts such as buffering arm, piston rod, piston sleeve and compression spring, through the impact force of buffering arm small-angle swing reduction valve clack, and compression spring is in the energy storage state, the valve clack can quick return when the valve body runner is closed.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of the valve flap and the rocker arm in this embodiment;

fig. 4 is an enlarged view of a portion B of fig. 1.

Reference numerals: 1. a valve body; 2. a valve cover; 3. a valve seat; 4. a valve flap; 5. a rocker arm; 6. an inlet end; 7. an outlet end; 8. a slow closing mechanism; 9. mounting a plate; 10. a buffer arm; 11. a piston rod; 12. a movable sleeve; 13. a compression spring; 14. an extension portion; 15. a limiting part; 16. an arc-shaped sleeve; 17. an arc-shaped tube; 18. a retainer ring; 19. a fixing plate; 20. a connecting arm; 21. a rotation pin; 22. an eye bolt; 23. an arc-shaped plate.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 4, the swing check valve comprises a valve body 1, a valve cover 2, a valve seat 3, a valve clack 4 and a rocker arm 5, the valve cover 2 is fixedly connected to the top of the valve body 1 through a bolt, the valve body 1 comprises a flow channel, an inlet end 6 and an outlet end 7, the inlet end 6 and the outlet end are located on two sides of the flow channel, the valve body 1 is provided with the valve seat 3 on one side of the inlet end 6, the inner wall of the valve body 1 is hinged to the rocker arm 5 and the rocker arm 5 is fixedly connected to the valve clack 4 towards one side of the valve seat 3, the flow channel of the valve body 1 is provided with a slow-closing mechanism 8 on one side of the outlet end 7, the slow-closing mechanism 8 comprises a vertical mounting plate 9, a buffer arm 10, a piston rod 11, a movable sleeve 12 is obliquely installed on the vertical mounting plate 9, the piston rod 11 is slidably installed on the movable sleeve 12 and the piston rod 11, the piston rod 11 is provided with the compression spring 13 in an inner cavity of the movable sleeve 12, the vertical mounting plate 9 is obliquely provided with the buffer arm 10 towards one side of the valve clack 4, one end of the buffer arm 10 is hinged to the bottom of the vertical mounting plate, and the vertical mounting plate is located at the center of the outlet end 7 of the valve body 1.

Can cushion valve clack 4 through setting up buffering arm 10, receive fluid impact and open to the rear when valve clack 4, fluid impact too big leads to valve clack 4 and 1 inner wall collision of valve body, seriously cause 1 inner wall wearing and tearing of valve body to drop or the cracked problem of 5 hinged ends of rocking arm, this application is through setting up buffering arm 10, piston rod 11, parts such as piston bush and compression spring 13, reduce valve clack 4's impact force through 10 small-angle swings of buffering arm, and compression spring 13 is in the energy storage state, valve clack 4 can return fast when 1 runner of valve body is closed.

The back of the valve clack 4 is provided with an extension part 14, the buffer arm 10 is provided with a limiting part 15 used for blocking the extension part 14 towards one side of the valve clack 4, the swing path of the valve clack 4 is limited, and the extension part 14 is in contact with the limiting part 15 after the valve clack 4 is opened to a certain degree, so that the swing angle is prevented from being too large.

The bottom of the flow channel of the valve body 1 is provided with an arc sleeve 16 and an arc tube 17 which have the same radian, the arc tube 17 is slidably mounted on the outer wall of the arc sleeve 16 and the outer wall of the arc tube 17 and is provided with a retainer ring 18, the arc sleeve 16 and the arc tube 17 bend towards one side of the buffering arm 10, one end of the arc tube 17 far away from the arc sleeve 16 is hinged with the buffering arm 10, two side faces of the buffering arm 10 are both provided with a connecting structure, the connection is stable, the small-angle swinging process is stable, and the service life is prolonged.

The valve clack 4 is provided with the arc 23 towards inlet end 6 one side, and the arc 23 middle part is protruding towards inlet end 6 one side, cuts apart reduction impact to rivers, and thus rivers can flow to the valve clack 4 lower tip part and open valve clack 4 fast.

The inner top wall of the valve body 1 is provided with a fixed plate 19, the fixed plate 19 is connected with a connecting arm 20 through a bolt, and the lower end of the connecting arm 20 is connected with the upper end of a swing arm through a rotating pin 21.

The top of the valve cover 2 is provided with an eyelet bolt 22, which is convenient for later transportation and provides a lifting point.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications fall within the scope of the present invention, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a swing check valve, includes valve body, valve gap, disk seat, valve clack and rocking arm, the valve gap passes through bolt fixed connection in the valve body top, the valve body includes the runner and is located the entrance point and the exit end of runner both sides, the valve body is provided with in entrance point one side the disk seat, the valve body inner wall articulates there are rocking arm and rocking arm towards disk seat one side fixedly connected with the valve clack, its characterized in that: the valve body runner is provided with in exit end one side and slowly closes the mechanism, slowly close the mechanism and include vertical mounting panel, buffering arm, piston rod, movable sleeve and compression spring, the movable sleeve slope is installed in vertical mounting panel, piston rod slidable mounting is provided with in the movable sleeve inner chamber in movable sleeve and piston rod compression spring, vertical mounting panel is provided with the buffering arm towards valve clack lopsidedness, the one end and the vertical mounting panel bottom of buffering arm are articulated, the other end and the tailpiece of the piston rod of buffering arm are articulated.

2. The swing check valve of claim 1, wherein: the back of the valve clack is provided with an extension part, and one side of the buffer arm, which faces the valve clack, is provided with a limiting part for blocking the extension part.

3. The swing check valve of claim 2, wherein: the valve body runner bottom is provided with arc sleeve pipe and the arc pipe that the radian equals, arc pipe slidable mounting is provided with the retaining ring in arc sleeve pipe and arc pipe outer wall, arc sleeve pipe and arc pipe are crooked to buffer arm one side, the arc sheathed tube one end is kept away from to the arc pipe is articulated with buffer arm.

4. The swing check valve of claim 1, wherein: the vertical mounting plate is plate-shaped and is positioned at the center of the outlet end of the valve body.

5. The swing check valve of claim 1, wherein: one side of the valve clack, which faces the inlet end, is provided with an arc-shaped plate, and the middle part of the arc-shaped plate protrudes towards one side of the inlet end.

6. The swing check valve of claim 1, wherein: the valve body inner top wall is provided with a fixed plate, a connecting arm is connected to the fixed plate through a bolt, and the lower end of the connecting arm is connected with the upper end of the swing arm through a rotating pin.

7. The swing check valve of claim 1, wherein: and the top of the valve cover is provided with an eyelet bolt.