CN218094457U

CN218094457U - Novel check valve structure

Info

Publication number: CN218094457U
Application number: CN202222731233.1U
Authority: CN
Inventors: 张汉涛
Original assignee: Shanghai Shenji Meter Co ltd
Current assignee: Shanghai Shenji Meter Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2022-12-20
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a novel check valve structure, relate to valve technical field, a valve body, the valve cap, the case subassembly, still include the connecting ring subassembly, the case subassembly includes self-closing rubber, the one end of self-closing rubber is equipped with the opening, the other end of self-closing rubber is equipped with the self-closing opening, opening and self-closing opening intercommunication, self-closing open-ended one side is equipped with the sealing, the connecting ring subassembly includes the go-between, the backing sheet, connecting rod and bracing piece, the inside go-between that is equipped with of one end of self-closing rubber, the periphery wall of go-between offsets with the internal perisporium of the one end of self-closing rubber, one side outer fringe of go-between is equipped with a plurality of backing sheets, each backing sheet offsets with the inner wall of self-closing rubber respectively, the middle part of go-between is equipped with the connecting rod, the middle part of connecting rod is equipped with the bracing piece, the one end of bracing piece is passed the self-closing opening and is extended to in the sealing. The normal use of self-closing rubber can be realized to the connecting ring subassembly that sets up, and can avoid self-closing rubber to appear extrusion deformation's condition because of the reaction force and take place.

Description

Novel check valve structure

Technical Field

The utility model relates to valve technical field especially involves a novel check valve structure.

Background

The check valve is a valve which automatically opens and closes a valve flap by the flow of a medium and is used for preventing the medium from flowing backwards, and is also called a check valve, a one-way valve, a reverse flow valve and a back pressure valve. The check valve is an automatic valve and mainly used for preventing medium backflow, preventing reverse rotation of a pump and a driving motor and discharging container medium.

Check valve: according to the structural division, the check valve can be divided into a lifting check valve, a swing check valve and a butterfly check valve. The lifting check valve can be divided into a vertical type and a straight type. The swing check valve is divided into a single-flap type, a double-flap type and a multi-flap type. The butterfly check valves are butterfly double-disc check valves, butterfly single-disc check valves, and the connection modes of the butterfly check valves can be divided into four types, namely threaded connection, flange connection, welding and wafer type connection.

The inside case of valve body is located mainly including valve body and activity to the check valve on the existing market, and the sealed form of case is also manifold, for example adopt the case of rubber formula to cooperate with the valve body to realize the non return function of medium, nevertheless adopt the case of rubber formula, the case of rubber formula is easily by extrusion deformation when the backpressure of medium is too big, influences normal use, and can lead to the case of rubber formula impaired for a long time, the non return transport capacity.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel check valve structure for solve above-mentioned technical problem.

The utility model adopts the technical scheme as follows:

the utility model provides a novel check valve structure, includes that the valve body locates the valve cap of valve body one end and locating the inside case subassembly of valve body still includes the connecting ring subassembly, the case subassembly includes self-closing rubber, the longitudinal section of self-closing rubber is V style of calligraphy structure, the one end of self-closing rubber is equipped with the opening, the other end of self-closing rubber is equipped with the self-closing opening, the opening with self-closing opening intercommunication, self-closing open-ended one side is equipped with the sealing, the connecting ring subassembly includes go-between, backing sheet, connecting rod and bracing piece, the one end of self-closing rubber is inside to be equipped with the go-between, just the periphery wall of go-between with the internal perisporium of the one end of self-closing rubber offsets, one side outer fringe of go-between is equipped with a plurality ofly the backing sheet, each with respectively the inner wall of self-closing rubber offsets, the middle part of go-between is equipped with the connecting rod, the middle part of connecting rod is equipped with the bracing piece, just the one end of bracing piece is passed the self-closing opening extends to in the sealing.

Preferably, an accommodating groove is formed in the inner wall of the sealing portion, and one end of the supporting rod is located in the accommodating groove.

Preferably, the inner peripheral wall of the valve body is provided with an installation groove, the outer edge of one end of the self-closing rubber protrudes outwards to form a protruding part, and the protruding part is positioned in the installation groove.

Preferably, the middle part of the valve cap is provided with a medium inlet.

Preferably, the valve body is provided with a medium outlet at the middle part, and the axis of the medium inlet, the axis of the connecting ring and the axis of the medium outlet are positioned on the same straight line.

As a further preference, the self-closing opening is provided close to the media outlet, and the sealing portion is located within the media outlet.

Preferably, the sealing device further comprises a spring, wherein the springs are arranged on the inner walls of the two sides of the medium outlet and abut against the two sides of the sealing part.

The technical scheme has the following advantages or beneficial effects:

in the utility model, through the arrangement of the connecting ring component, the self-closing rubber, the self-closing opening and the sealing part can be supported, the normal use of the self-closing rubber can not be influenced, the self-closing rubber can be prevented from being extruded and deformed by reverse pressure, and the self-closing rubber can be protected; and the spring is arranged at the position of the medium outlet, so that the closing of the sealing part can be accelerated, and the medium is prevented from flowing reversely.

Drawings

FIG. 1 is a schematic view of the internal structure of the novel check valve structure of the present invention;

fig. 2 is a perspective view of a connecting ring assembly of the present invention.

In the figure: 1. a valve body; 2. a bonnet; 3. a connecting ring assembly; 301. a connecting ring; 302. a support sheet; 303. a connecting rod; 304. a support bar; 4. a valve core assembly; 401. self-closing rubber; 402. a sealing part; 5. a media inlet; 6. a media outlet; 7. a spring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

FIG. 1 is a schematic view of the internal structure of the novel check valve structure of the present invention; fig. 2 is a perspective view of a connection ring assembly in the present invention, please refer to fig. 1 to 2, which illustrate a preferred embodiment, illustrating a novel check valve structure, including a valve cap 2 disposed at one end of a valve body 1 and a valve core assembly 4 disposed inside the valve body 1, further including a connection ring assembly 3, the valve core assembly 4 includes a self-closing rubber 401, a longitudinal section of the self-closing rubber 401 is V-shaped, one end of the self-closing rubber 401 is provided with an opening, the other end of the self-closing rubber 401 is provided with a self-closing opening, the opening is communicated with the self-closing opening, one side of the self-closing opening is provided with a sealing portion 402, the connection ring assembly 3 includes a connection ring 301, a support plate 302, a connection rod 303 and a support rod 304, the connection ring 301 is disposed inside one end of the self-closing rubber 401, an outer peripheral wall of the connection ring 301 abuts against an inner peripheral wall of one end of the self-closing rubber 401, one side outer edge of the connection ring 301 is provided with a plurality of support plates 302, each support plate 302 abuts against an inner wall of the self-closing rubber 401, the connection ring 302 abuts against an inner wall of the connection ring 401, the connection ring 301 is provided with a connection rod 303, the support rod 304, the connection rod 303 is provided with a support rod 304 extending through the support rod extending to the sealing portion. In this embodiment, as shown in fig. 1, the valve body 1 is detachably connected to the bonnet 2, and a sealing ring is disposed between an inner circumferential wall of the valve body 1 and an outer circumferential wall of the bonnet 2, so as to prevent a medium from leaking. The self-closing opening of the self-closing rubber 401 points to the medium outlet 6 on the valve body 1, the medium inlet 5 is formed in the middle of the valve cap 2, when a medium enters a cavity formed between the valve cap 2 and the valve body 1 from the medium inlet 5, the medium can automatically open the self-closing opening, so that the self-closing opening is opened, and then the sealing part 402 is opened, so that the medium can be conveniently discharged from the medium outlet 6. Referring to fig. 1, an upper inner wall of the sealing part 402 abuts against a lower inner wall of the sealing part 402.

In this embodiment, by adding the support piece 302 and the support rod 304 to the middle of the connection ring 301, the self-closing opening of the self-closing rubber 401 and the position of the sealing portion 402 can be prevented from being deformed by being pressed by an opposing force. Wherein, the support rod 304 adopts a sheet structure.

Further, as a preferred embodiment, a receiving groove is formed on an inner wall of the sealing portion 402, and one end of the supporting rod 304 is located in the receiving groove. Referring to fig. 1, an installation groove is formed on the inner circumferential wall of the valve body 1, an outer edge of one end of the self-closing rubber 401 protrudes outward to form a protruding portion, and the protruding portion is located in the installation groove. The protruding part and the self-closing rubber 401 are arranged in an integrated mode, and the protruding part is located in the installation groove and is convenient for connecting the self-closing rubber 401 with the installation groove. The outer peripheral wall of the connecting ring 301 is abutted to the inner peripheral wall of one end of the self-closing rubber 401, and the diameter of the connecting ring 301 can be changed, so that the connecting ring 301 outwards props up the self-closing rubber 401, and a protruding part on the self-closing rubber 401 is conveniently installed in the accommodating groove. In this embodiment, the receiving groove is formed on the upper inner wall and the lower inner wall of the sealing portion 402, and when the upper and lower sides of the two sealing portions 402 are closed, one end of the supporting rod 304 can enter the receiving groove, so as to support the sealing portion 402 of the self-closing rubber 401 and the self-closing opening position.

The axis of the medium inlet 5, the axis of the connection ring 301 and the axis of the medium outlet 6 are located on the same straight line. The medium inlet 5, the connection ring 301 and the medium outlet 6 are coaxially arranged.

Further, as a preferred embodiment, the self-closing opening is arranged close to the media outlet 6, and the sealing part 402 is located inside the media outlet 6.

Further, as a preferred embodiment, a spring 7 is further included, the spring 7 is provided on the inner wall of both sides of the medium outlet 6, and the spring 7 abuts against both sides of the sealing portion 402. In this embodiment, referring to fig. 1, the inner walls of the two sides of the medium outlet 6 are respectively provided with a plurality of springs 7, the springs 7 press the two sides of the sealing portion 402, and when the medium is conveyed, the springs 7 can rapidly close the sealing portion 402 to seal the sealing portion, so as to prevent the medium from flowing back. Wherein, all be equipped with a plurality of spring 7 on two inner walls of medium export 6, can adjust the quantity of spring 7 and the elasticity of spring 7 as required, avoid the unable sealed portion 402 that struts of fluid. In this embodiment, the medium can automatically open the self-closing opening and the sealing portion 402, and when the medium stops being conveyed, the self-closing opening and the sealing portion 402 are automatically closed to achieve sealing.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims

1. The utility model provides a novel check valve structure, includes that the valve body locates the valve cap of valve body one end and locating the inside case subassembly of valve body, its characterized in that still includes the connecting ring subassembly, the case subassembly includes self-closing rubber, the longitudinal section of self-closing rubber is V style of calligraphy structure, the one end of self-closing rubber is equipped with the opening, the other end of self-closing rubber is equipped with the self-closing opening, the opening with self-closing opening intercommunication, self-closing open-ended one side is equipped with the sealing, the connecting ring subassembly includes go-between, backing sheet, connecting rod and bracing piece, the one end of self-closing rubber is inside to be equipped with the go-between, just the periphery wall of go-between with the internal perisporium of the one end of self-closing rubber offsets, one side outer fringe of go-between is equipped with a plurality ofly the backing sheet, each the backing sheet respectively with the inner wall of self-closing rubber offsets, the middle part of go-between is equipped with the connecting rod, the middle part of connecting rod is equipped with the bracing piece, just the one end of bracing piece is passed the self-closing opening extends to in the sealing.

2. The structure of claim 1, wherein the inner wall of the sealing portion has a receiving groove, and one end of the supporting rod is located in the receiving groove.

3. The novel check valve structure as claimed in claim 1, wherein the inner peripheral wall of the valve body is provided with a mounting groove, an outer edge of one end of the self-closing rubber protrudes outwards to form a protruding portion, and the protruding portion is located in the mounting groove.

4. The new check valve structure as claimed in claim 1, wherein the valve cap has a media inlet opening at a middle portion thereof.

5. The novel check valve structure as claimed in claim 4, wherein a medium outlet is opened at the middle of the valve body, and the axis of the medium inlet, the axis of the connection ring and the axis of the medium outlet are located on the same straight line.

6. The novel check valve structure of claim 5, wherein said self-closing opening is disposed proximate said media outlet and said seal is located within said media outlet.

7. The novel check valve structure of claim 6, further comprising a spring, wherein the spring is disposed on the inner walls of both sides of the medium outlet and abuts against both sides of the sealing portion.