CN218408652U

CN218408652U - Check valve for waste incineration system

Info

Publication number: CN218408652U
Application number: CN202222830816.XU
Authority: CN
Inventors: 徐红星; 周福祥; 杨勋寄; 周剑; 董昕
Original assignee: Lishui Branch Of Shanghai Haoyi Valve Group Co ltd
Current assignee: Lishui Branch Of Shanghai Haoyi Valve Group Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-01-31
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a check valve for a waste incineration system, which belongs to the technical field of valves and comprises a valve body, wherein the left end and the right end of the valve body are respectively provided with a flow inlet pipe and a flow outlet pipe, a valve shaft is hinged in the valve body, a rocker arm is pivoted on the valve shaft, a valve clack is fixedly installed on the rocker arm, and an elastic sealing body is fixedly installed on the end surface of the valve clack close to the flow inlet pipe; the valve body is close to fixed mounting on the inside wall of outlet flow pipe has the buffer block, and the tip fixedly connected with elasticity stopper of valve shaft is kept away from to the rocking arm, and elasticity stopper uses with the buffer block cooperation. The utility model provides a prior art stop valve on the return valve clack and valve body can regularly bump, make easily appear not hard up between valve clack and the rocking arm, cause the position of valve clack to appear the deviation, and then lead to the problem that sealing performance descends, easy operation is convenient, and the practicality is strong.

Description

Check valve for waste incineration system

Technical Field

The utility model relates to the technical field of valves, specifically be a check valve for msw incineration system.

Background

The check valve is also called a check valve, a one-way valve or a check valve, and is used for preventing the medium in the pipeline from flowing in a directional mode and not flowing backwards. The check valve is a common valve device, and the principle of the check valve is that opening and closing are realized by the force of medium flowing, and the check valve is mainly used on a pipeline in which the medium flows in a single direction and only allows the medium to flow in one direction so as to prevent accidents.

In actual use, however, the flow rate of the medium is usually very fast. The check valve needs frequent opening and closing, leads to valve clack and valve body on the check valve to collide, makes appearing becoming flexible between valve clack and the rocking arm easily, causes the position of valve clack to appear the deviation, and then leads to the problem that sealing performance descends.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve for msw incineration system to solve prior art and stop valve clack and valve body on the return valve and can regularly bump, make easily appear not hard up between valve clack and the rocking arm, cause the position of valve clack to appear the deviation, and then lead to the problem that sealing performance descends.

In order to achieve the above purpose, the utility model provides a following technical scheme: a check valve for a waste incineration system comprises a valve body, wherein a flow inlet pipe and a flow outlet pipe are respectively arranged at the left end and the right end of the valve body, a valve shaft is hinged in the valve body, a rocker arm is pivoted on the valve shaft, a valve clack is fixedly installed on the rocker arm, and an elastic sealing body is fixedly installed on the end face, close to the flow inlet pipe, of the valve clack; the valve body is close to fixed mounting on the inside wall of play flow tube has the buffer block, the tip fixedly connected with elasticity stopper of valve shaft is kept away from to the rocking arm, elasticity stopper and buffer block cooperation are used.

As the utility model discloses an preferred technical scheme: the valve clack includes the base disc, the base disc is circular, elasticity seal fixed mounting is on the base disc, the cross sectional area of elasticity seal is greater than the cross sectional area of inlet flow pipe, the excircle periphery of base disc upper surface is certain angle design to the center.

As the utility model discloses an preferred technical scheme: the base plate central point puts and installs the threaded rod, the connecting hole has been seted up to the rocking arm, the threaded rod tip runs through the connecting hole, the threaded rod end connection has the nut.

As the utility model discloses a preferred technical scheme: and a damping ring surrounding the threaded rod is arranged on the surface of the base plate.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model relates to an ingenious, simple structure through setting up elastic seal body, elastic limiting block and buffer block, has effectively alleviateed the collision dynamics between valve clack and the valve body inner wall, has prolonged the life of check valve.

2. Through the design that the outer periphery of the base disc forms a certain angle to the center, the center of gravity of the base disc is located in the middle of the base disc, and the stability of the valve clack is improved in the opening and closing processes. Correspondingly, the threaded rod is sleeved in the connecting hole on the rocker arm, so that the rocker arm is connected more tightly, and the effect of preventing looseness can be achieved.

3. The damping rings are inconsistent with the rocker arms, so that the stability between the valve clack and the rocker arms is improved, the effect of buffering is achieved when the valve clack is opened and closed, and the influence of impact on the valve clack is reduced.

Drawings

FIG. 1 is a schematic view of a check valve for a waste incineration system according to the present invention;

FIG. 2 is a schematic structural view of the valve flap of the present invention;

fig. 3 is a schematic structural view of the middle rocker arm of the present invention.

In the figure: the valve comprises a valve body 1, an inlet flow pipe 2, an outlet flow pipe 3, a valve cover 4, a valve shaft 5, a rocker arm 6, a base plate 7, a nut 8, an elastic limiting block 9, a buffer block 10, an elastic sealing body 11, a damping ring 12, a connecting hole 13 and a threaded rod 14.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a check valve for waste incineration system, includes valve body 1, and both ends are equipped with into flow tube 2 and play flow tube 3 respectively about valve body 1, have the valve pocket between into flow tube 2 and play flow tube 3, and valve gap 4 is installed at the top of valve pocket.

Articulated in the valve body 1 have a valve shaft 5, and the pin joint has rocking arm 6 on the valve shaft 5, and fixed mounting has the valve clack on the rocking arm 6, and the valve clack includes basal disc 7, and basal disc 7 is circular, and the excircle periphery of basal disc 7 upper surface is certain angle design to the center, and the angle of design is 5. The design that a certain angle is formed from the outer circumference of the base disc 7 to the center enables the gravity center of the base disc 7 to be in the middle position of the base disc 7, and the stability of the valve clack is improved in the opening and closing processes.

An elastic sealing body 11 is fixedly arranged on the base plate 7, the cross-sectional area of the elastic sealing body 11 is larger than that of the inflow pipe 2, and the elastic sealing body 11 is used for blocking and sealing the inflow pipe 2.

A threaded rod 14 is installed in the center of the base plate 7, a connecting hole 13 is formed in the rocker arm 6, the end portion of the threaded rod 14 penetrates through the connecting hole 13, and a nut 8 is connected to the end portion of the threaded rod 14. The threaded rod 14 is sleeved in the connecting hole 13 on the rocker arm 6, so that the connection is tighter, and the effect of preventing loosening can be achieved. Meanwhile, the damping ring 12 surrounding the threaded rod 14 is arranged on the surface of the base disc 7, so that the damping effect is achieved when the valve clack is opened and closed, and the influence of impact on the valve clack is reduced.

The valve body 1 is close to fixedly mounted with buffer block 10 on the inside wall of play flow tube 3, and the rocking arm 6 is kept away from the tip fixed connection of valve shaft 5 has elasticity stopper 9, and elasticity stopper 9 uses with the buffer block 10 cooperation. When the valve clack drives rocking arm 6 and moves toward 1 inside wall direction of valve body, elastic limiting block 9 on rocking arm 6 takes precedence and contacts with buffer block 10 on the inside wall to alleviate the striking dynamics between rocking arm 6 and 1 inside wall of valve body greatly, effectively protected valve body 1, prolonged the life of check valve.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a check valve for msw incineration system, includes valve body (1), both ends are equipped with inflow pipe (2) and outflow pipe (3) respectively about valve body (1), it has valve shaft (5) to articulate in valve body (1), the pin joint has rocking arm (6) on valve shaft (5), fixed mounting has valve clack, its characterized in that on rocking arm (6): an elastic sealing body (11) is fixedly arranged on the end face, close to the inflow pipe (2), of the valve flap;

the valve body (1) is close to fixed mounting on the inside wall of outlet pipe (3) and has buffer block (10), tip fixed connection that valve shaft (5) were kept away from in rocking arm (6) has elastic stopper (9), elastic stopper (9) and buffer block (10) cooperation are used.

2. A non-return valve for a waste incineration system according to claim 1, characterised in that: the valve clack includes basal disc (7), basal disc (7) are circular, elasticity seal (11) fixed mounting is on basal disc (7), the cross sectional area of elasticity seal (11) is greater than the cross sectional area of inflow pipe (2), the outer periphery of basal disc (7) upper surface is certain angle design to the center.

3. A check valve for a waste incineration system according to claim 2, wherein: base plate (7) central point puts and installs threaded rod (14), connecting hole (13) have been seted up in rocking arm (6), threaded rod (14) tip runs through connecting hole (13), threaded rod (14) end connection has nut (8).

4. A check valve for a waste incineration system according to claim 3, wherein: and a damping circular ring (12) surrounding a threaded rod (14) is arranged on the surface of the base plate (7).