CN217328613U

CN217328613U - Plastic one-way valve

Info

Publication number: CN217328613U
Application number: CN202220352883.2U
Authority: CN
Inventors: 陆朝长
Original assignee: Yueqing Xingyuan Rubber & Plastic Technology Co ltd
Current assignee: Yueqing Xingyuan Rubber & Plastic Technology Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-08-30
Anticipated expiration: 2032-02-21

Abstract

The utility model discloses a plastics check valve. The technical key points are as follows: including the valve body, entry and export have been seted up at the both ends of valve body, be equipped with gasket and spring in the valve body, the spring is located between gasket and the export, the gasket is equipped with the reference column towards one side of entry, the reference column is located the entry, the utility model discloses a gasket removes in-process stable in position, and opening, sealed keeping concentric coaxial of plastics check valve to make the plastics check valve use homoenergetic for a long time and keep good sealed effect.

Description

Plastic one-way valve

Technical Field

The utility model relates to a rubber valve field, more specifically the utility model relates to a plastics check valve that says so.

Background

Spring type plastic one-way valves with similar appearance and size are sold in the market, and the phenomenon of poor reverse sealing leakage exists. The operation is good at the beginning, and the phenomenon of poor reverse sealing leakage occurs after a period of working.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a use sealed good plastics check valve for a long time.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a plastics check valve, including the valve body, entry and export have been seted up at the both ends of valve body, be equipped with gasket and spring in the valve body, the spring is located between gasket and the export, the gasket is equipped with the reference column towards one side of entry, the reference column is located the entrance.

As a further improvement, the side of the positioning column is provided with a convex strip.

As a further improvement, the one end of the positioning column away from the sealing sheet is provided with a guiding part with an inclination.

As a further improvement, the valve body is equipped with a plurality of locating pieces towards one side of export, and the intermediate position of a plurality of locating pieces is equipped with the ladder, spring one end is inconsistent with the ladder, and the other end is inconsistent with the gasket.

As a further improvement of the utility model, the gasket is equipped with the locating lever towards one side of export, the locating lever is located the spring.

As a further improvement of the present invention, the positioning rod is provided with a bearing groove toward the one end of the outlet.

As a further improvement, the bearing groove is located the center of the positioning rod, and the bearing groove is coaxially arranged with the outlet.

As a further improvement of the utility model, the valve body is equipped with the promotion groove towards one side of entry.

As a further improvement of the utility model, the thickness of gasket is greater than 1 mm.

As a further improvement, the sealing sheet, the positioning column and the positioning rod are integrally formed.

The beneficial effects of the utility model, the position when the gasket seals the entry is stable, and opening, sealed keeping concentric coaxial of plastics check valve to make the plastics check valve use the homoenergetic for a long time and keep good sealed effect.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a part of the structure of the present invention;

fig. 3 is a schematic view of the overall structure of the present invention.

Description of the labeling: 1. a valve body; 11. an inlet; 12. an outlet; 13. positioning blocks; 14. a step; 15. a push groove; 2. sealing the sheet; 21. a positioning column; 211. a convex strip; 212. a guide section; 22. positioning a rod; 221. a load bearing groove; 3. a spring.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1-3, a plastics check valve, including valve body 1, entry 11 and export 12 have been seted up at the both ends of valve body 1, be equipped with gasket 2 and spring 3 in the valve body 1, spring 3 is located between gasket 2 and export 12, its characterized in that: one side of sealing fin 2 towards entry 11 is equipped with reference column 21, reference column 21 is located entry 11.

When the medium flows from the inlet 11 to the outlet 12, the medium pushes the sealing sheet 2 to move towards the outlet 12 side, the spring 3 is compressed, the medium flows, and at the moment, part of the positioning column 21 is positioned in the inlet 11; when the inlet 11 is not used for inputting media any more, the spring 3 resets to push the sealing sheet 2 to move towards one side of the inlet 11, and in the moving process, because the end part of the positioning column 21 is positioned in the inlet 11, the position of the sealing sheet 2 when the inlet 11 is closed is stable, the opening and the sealing of the plastic one-way valve are kept concentric and coaxial, and therefore the plastic one-way valve can keep a good sealing effect after being used for a long time. Preferably, the spring 3 is provided with two circles at the head part, so that the acting surface is supported more uniformly.

Preferably, the side of reference column 21 is equipped with sand grip 211, has the clearance between the adjacent sand grip 211, supplies the medium to flow, and the medium that gets into from entry 11 can pass through the clearance, and stable action is on gasket 2 for the use is stable.

In addition, an inclined guide part 212 is arranged at one end of the positioning column 21 away from the sealing sheet 2, and the guide part 212 guides the medium to flow, so that the kinetic energy loss in the moving process of the medium is reduced, and the flow velocity of the medium is improved.

Specifically, valve body 1 is equipped with a plurality of locating pieces 13 towards one side of export 12, and the intermediate position of a plurality of locating pieces 13 is equipped with

ladder

14, 3 one end of spring is inconsistent with ladder 14, and the other end is inconsistent with gasket 2, has the clearance between the adjacent locating piece 13, supplies the medium to flow, when the plastics check valve is opened, the medium passes through the gap of gasket 2 and valve body 1, later flow from the clearance between the adjacent locating piece 13, later get into export 12, spring 3 is located the ladder 14 position in the middle of a plurality of locating pieces 13, and the position is stable, thereby make opening of plastics check valve, sealed keeping concentric coaxial, extension plastics check valve's life.

Further, sealing washer 2 is equipped with locating lever 22 towards one side of export 12, locating lever 22 is located spring 3, and locating lever 22 is located spring 3, from interior restriction spring 3's position, and locating piece 13 is from the position of outer restriction spring 3, and two-way restriction further improves the stability in spring 3 position to including locating lever 22 is wrapped up by a plurality of locating pieces 13, prevent to open the too big skew condition of locating lever 22 that leads to of stroke, improve the stability in the use.

As a modified specific embodiment, the end of the positioning rod 22 facing the outlet 12 is provided with a bearing groove 221.

Through above-mentioned technical scheme, when export 12 medium reverse flow was to entry 11, the pressure of medium acted on bearing groove 221, with spring 3 combined action, spring 3 is sealed for leading, and the pressure that bearing groove 221 received is for assisting to improve reverse sealed effect.

Furthermore, the bearing groove 221 is located at the center of the positioning rod 22, the bearing groove 221 is coaxially arranged with the outlet 12, and the pressure received by the bearing groove 221 acts on the center of the sealing sheet 2, so that the reverse sealing effect is further improved.

Specifically, valve body 1 is equipped with the pushing groove 15 towards one side of entry 11, and the clearance between the adjacent sand grip 211 is filled with pushing groove 15 earlier to the medium of gasket 2, promotes gasket 2 again, has enlarged the pushing face for the pushing in-process gasket 2 deformation range is little, further prolongs gasket 2's life.

Specifically, the thickness of gasket 2 is greater than 1mm, through the thickness that increases gasket 2 to reinforcing gasket 2's life, and the whole plane of the gasket 2 of thickening seals, and opening speed is fast, and pressure is even.

Specifically, the sealing sheet 2, the positioning column 21 and the positioning rod 22 are integrally formed and can be made of materials such as ethylene propylene diene monomer, fluororubber and fluorosilicone, and the like, so that the structural strength is improved, and the service life is prolonged.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a plastics check valve, including the valve body, entry and export have been seted up at the both ends of valve body, be equipped with gasket and spring in the valve body, the spring is located between gasket and the export, its characterized in that: the gasket is equipped with the reference column towards one side of entry, the reference column is located the entry.

2. The plastic check valve as recited in claim 1, wherein: and a raised line is arranged on the side edge of the positioning column.

3. The plastic check valve as recited in claim 1, wherein: and an inclined guide part is arranged at one end of the positioning column, which is far away from the sealing sheet.

4. The plastic check valve as recited in claim 1, wherein: one side of the valve body towards the outlet is provided with a plurality of positioning blocks, the middle positions of the positioning blocks are provided with steps, one end of the spring is abutted to the steps, and the other end of the spring is abutted to the sealing sheet.

5. The plastic check valve as in claim 4, wherein: one side of the sealing sheet towards the outlet is provided with a positioning rod which is positioned in the spring.

6. The plastic check valve as recited in claim 5, wherein: and one end of the positioning rod facing the outlet is provided with a bearing groove.

7. The plastic check valve as in claim 6, wherein: the bearing groove is positioned in the center of the positioning rod, and the bearing groove and the outlet are coaxially arranged.

8. The plastic check valve as recited in claim 1, wherein: and a pushing groove is formed in one side, facing the inlet, of the valve body.

9. The plastic check valve as recited in claim 1, wherein: the thickness of the sealing piece is more than 1 mm.

10. The plastic check valve as recited in claim 5, wherein: the sealing piece, the positioning column and the positioning rod are integrally formed.