CN217927315U

CN217927315U - Wafer type mute check valve

Info

Publication number: CN217927315U
Application number: CN202222018538.8U
Authority: CN
Inventors: 蒋星学; 储志明; 袁仕平; 王庆林
Original assignee: Yimai Industrial Co ltd
Current assignee: Yimai Industrial Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-29
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a wafer formula silence check valve, include: the valve comprises a valve body, a valve clack arranged in the valve body and a valve cover in threaded connection with the valve body; be provided with the location axle in the valve clack, the epaxial spring that has cup jointed of location, the location axle is kept away from valve clack one and is served and be fixed with the valve clack dish, and the spring is kept away from the one end and the valve clack dish conflict contact of valve clack. According to the utility model discloses, reasonable in design, the reliable operation, simple to operate, the valve clack is unique design method has effectually guaranteed opening of valve clack dish and has closed the flexibility, can not the jamming, reveal, sealed not tight, the long service life of valve, reliable security is strong.

Description

Wafer type mute check valve

Technical Field

The utility model relates to a technical field of check valve, in particular to wafer formula silence check valve.

Background

The check valve is a valve with a circular opening and closing piece and acts by self weight and medium pressure to block the medium from flowing backwards, and the movement modes of the valve clack are divided into lifting and swing modes. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is inclined and can pivot, and are commonly used as a bottom valve for water pumping devices to prevent the backflow of water. The check valve and the stop valve are combined for use, and the safety isolation effect can be achieved. The disadvantages are high resistance and poor sealing performance when closed.

The existing check valve has the problems that the structure is heavy, the sealing device is unreliable, the phenomena of leakage, leakage and the like are caused by damage of a valve gasket, the noise is high during working, and the like.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the prior art, the utility model aims at providing a wafer formula silence check valve, reasonable in design, reliable operation, simple to operate, the effectual opening of having guaranteed the valve clack dish of the unique design method of valve clack is closed in the flexibility, can not the jamming, reveal, sealed not tight, the long service life of valve, reliable security is strong. In order to achieve the above objects and other advantages in accordance with the present invention, there is provided a wafer-type silent check valve, including:

the valve comprises a valve body, a valve clack arranged in the valve body and a valve cover in threaded connection with the valve body;

be provided with the location axle in the valve clack, the epaxial spring that has cup jointed of location, the location axle is kept away from valve clack one and is served and be fixed with the valve clack dish, and the spring is kept away from the one end and the valve clack dish conflict contact of valve clack.

Preferably, the valve flap comprises a first valve flap disc, a second valve flap disc fixedly connected with the second first valve flap disc through a plurality of sheet ribs, and a spring accommodating main body arranged between the first valve flap disc and the second valve flap disc.

Preferably, the spring accommodating main body is a cylinder with an inner cavity, and a guide hole is formed in the bottom of the spring accommodating main body close to the first valve clack disc.

Preferably, a positioning shaft is placed in the spring accommodating main body, the positioning shaft is inserted into the guide hole, and the positioning shaft is in sliding fit with the guide hole.

Preferably, a sealing gasket is arranged between the valve cover and the valve body, and a valve clack disc is arranged at one end, far away from the valve cover, of the sealing gasket.

Compared with the prior art, the utility model, its beneficial effect is: the unique design method of the valve clack effectively ensures that the valve clack disc is flexible in opening and closing, and cannot be clamped, leaked or sealed untight. The sealing gasket is made of fluororubber which has high wear resistance and meets the sanitary requirements, the valve clack disk is not contacted with the valve cover, the surface roughness of the valve clack disk is effectively guaranteed, the service life of the valve is long, and the valve is reliable and safe.

Drawings

Fig. 1 is a cross-sectional view of a wafer-type silent check valve according to the present invention;

fig. 2 is a schematic diagram of a three-dimensional structure of a valve flap of the wafer-type silent check valve according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a wafer-type silent check valve includes:

the valve comprises a valve body 1, a valve clack 2 arranged in the valve body 1 and a valve cover 4 in threaded connection with the valve body 1, wherein the two opposite side surfaces of the valve body 1 are provided with a plurality of prisms, so that the valve body 1 is convenient to mount and dismount, and the valve is convenient to mount and replace quickly;

be provided with location axle 6 in the valve clack 2, spring 7 has been cup jointed on the location axle 6, location axle 6 is kept away from valve clack 2 and is served and be fixed with valve clack dish 5, and spring 7 keeps away from the one end and the conflict contact of valve clack dish 5 of valve clack 2, valve clack 2 includes first valve clack disc 21, with the first valve clack disc 21 of second through a plurality of slice muscle 22 fixed connection's second valve clack disc 23 and set up in the spring between first valve clack disc 21 and second valve clack disc 23 and hold main part 24, the spring holds the cylinder that main part 24 is an inside cavity body, and the spring holds main part 24 and has seted up a guiding hole 25 near the bottom of first valve clack disc 21, has placed location axle 6 in the spring holds main part 24, and location axle 6 inserts in guiding hole 25, location axle 6 and guiding hole 25 sliding fit, first valve clack disc 21 is a ring form, and is connected through four slice muscle 22 between first valve clack disc 21 and the second valve clack disc 23, has both guaranteed the intensity and stability of valve clack, has ensured the smooth and has guaranteed the smooth and has passed through the smooth and easy operation of liquid passage, and has offered the valve clack 24 the coaxial passageway hole 25, thereby guaranteed the accurate operation of two accurate reliable operation of valve clack dish, the accurate position portion between the accurate passageway portion between two.

Further, be provided with seal gasket 3 between valve gap 4 and the valve body 1, the one end that seal gasket 3 kept away from valve gap 4 is provided with valve clack dish 5, when valve gap 4 turned round tightly, seal gasket 3 was located correct position this moment, and seal gasket 3's elasticity also can prevent that valve gap 4 is not hard up, and the check valve both ends car has several seal grooves, can ensure sealed effect effectively.

The working principle is as follows: when the pressure at the valve cover 4 of the valve is higher, the liquid pushes the valve clack disc 5 to move towards the first valve clack disc 21, and the liquid can be smoothly conveyed out through the cavity of the valve clack 2. When the pressure at the first valve clack disc 21 of the valve is large (in a shutdown state), the valve clack disc 5 can rapidly move towards the valve cover 4 under the dual actions of the spring 7 and the liquid pressure, and finally the valve clack disc 5 can be clamped on the sealing gasket 3, so that the reverse flow of the liquid is effectively prevented. Because the valve clack disc 5 only contacts with the sealing gasket 3, the sealing surface is protected, and the generation of larger noise is avoided. The structure can effectively guarantee the sealing effect, prolong the service life of the check valve and have high overall reliability and safety.

The number of devices and the scale of the processes described herein are intended to simplify the description of the present invention, and applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. An wafer-type silent check valve, comprising:

the valve comprises a valve body (1), a valve clack (2) arranged in the valve body (1) and a valve cover (4) in threaded connection with the valve body (1);

be provided with location axle (6) in valve clack (2), spring (7) have been cup jointed on location axle (6), valve clack (2) are kept away from in location axle (6) one and serve and be fixed with valve clack dish (5), and the one end that valve clack (2) were kept away from in spring (7) is contradicted with valve clack dish (5) and is contacted.

2. A silent wafer check valve according to claim 1, wherein the valve flap (2) comprises a first flap disk (21), a second flap disk (23) fixedly connected to the first flap disk (21) by a plurality of plate-like ribs (22), and a spring housing body (24) disposed between the first flap disk (21) and the second flap disk (23).

3. The wafer-type silent check valve as claimed in claim 2, wherein said spring housing body (24) is a cylindrical body with a hollow interior, and a guide hole (25) is formed in the spring housing body (24) near the bottom of the first flap disk (21).

4. A wafer-type silent check valve according to claim 3, wherein the positioning shaft (6) is disposed in the spring housing body (24), and the positioning shaft (6) is inserted into the guide hole (25), and the positioning shaft (6) is slidably fitted into the guide hole (25).

5. A wafer-type silent check valve according to claim 4, characterized in that a sealing gasket (3) is arranged between the valve cover (4) and the valve body (1), and a valve clack disc (5) is arranged at one end of the sealing gasket (3) far from the valve cover (4).