CN203009935U - Simple-structured check valve - Google Patents
Simple-structured check valve Download PDFInfo
- Publication number
- CN203009935U CN203009935U CN 201220670952 CN201220670952U CN203009935U CN 203009935 U CN203009935 U CN 203009935U CN 201220670952 CN201220670952 CN 201220670952 CN 201220670952 U CN201220670952 U CN 201220670952U CN 203009935 U CN203009935 U CN 203009935U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- check sheet
- check
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Check Valves (AREA)
Abstract
A simple-structured check valve comprises a valve seat, a valve cover, a check sheet and a sealing gasket. One end of the valve seat is an inlet , the other end of the valve seat is provided with inner threads, a support grid is arranged in the inlet of the valve seat, a protrusion is arranged on the inner wall of the valve seat, the valve cover is provided with outer threads, the valve cover is connected with the valve seat in a threaded mode, the sealing gasket is arranged in the clearance between the valve cover and the valve seat, and the check sheet is connected with the valve seat through the protrusion and is attached to the support grid. The check sheet is of round, the radius of the check sheet is larger than the inner diameter of the inlet, the check sheet is made of rubber, the thickness of the check sheet is larger than or equal to 3mm, a semi-circular protrusion is arranged on the periphery of the check sheet, and a square hole is formed in the semi-circular protrusion. When the simple-structured check valve is in normal work, fluid with pressure flowing in from the inlet lifts the check sheet to enable the fluid to pass trough the check valve smoothly, and when the fluid flows reversely, the check sheet is tightly attached to the support grid to stop the fluid from passing through and plays a role of checking. The simple-structured check valve is simple in structure, reliable in work, low in manufacturing cost, capable of being used both in a gas medium pipeline and in a liquid medium pipeline, and wide in application range.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of safety check simple in structure.
Background technique
Safety check is a kind ofly to rely on media flow and the automatic opening-closing flap is used for preventing the device that medium flows backwards.Present safety check is complicated structure mostly, and manufacture cost, maintenance cost are higher, therefore designs a kind of safety check simple in structure necessary.
Summary of the invention
In sum, the purpose of this utility model is to provide a kind of safety check simple in structure.
The purpose of this utility model is achieved through the following technical solutions:
A kind of safety check simple in structure comprises valve seat, valve gap, non-return sheet, gasket seal, and valve seat one end is import, and the other end is provided with internal thread; Be provided with the support aperture plate in the import of valve seat; The inwall of valve seat is provided with projection; Valve gap is provided with outside thread; Valve gap is threaded with valve seat, its gap location gasket seal; The non-return sheet fits with the support aperture plate by protruding connecting valve seat.
Above-mentioned non-return sheet is circular, and its radius is made by soft rubber greater than the import internal diameter, and thickness is not less than 3mm, and outer rim is provided with a half-circle projection, has a square hole on it.
The advantage that the utility model compared with prior art has is:
1, simple in structure, the reliable operation of the utility model, low cost of manufacture.
2, the utility model can improve by the non-return sheet of changing different-thickness the non-return sensitivity to different pressure pipings.
3, the utility model can be applicable to the gas medium pipeline, also can be applicable to the liquid medium pipeline, and is applied widely.
4, the utility model is easy for installation, and is practical.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of non-return sheet in the utility model.
In figure: 1-valve seat 2-valve gap 3-non-return sheet 4-gasket seal 5-water intake 6-supporting network grid 7-projection 31-half-circle projection 32-square hole
Embodiment
Below in conjunction with description of drawings, the utility model is described further:
A kind of safety check simple in structure comprises valve seat 1, valve gap 2, non-return sheet 3, gasket seal 4, and valve seat 1 one ends are import 5, and the other end is provided with internal thread; Be provided with in the import 11 of valve seat 1 and support aperture plate 6; The inwall of valve seat 1 is provided with projection 7; Valve gap 2 is provided with outside thread; Valve gap 2 is threaded with valve seat 1, and its gap location is provided with gasket seal 4; Non-return sheet 3 fits with support aperture plate 6 by protruding 7 connecting valve seats 1.
Embodiment
The pressure flow body jack-up non-return sheet 3 that is flowed into by import 5 during normal operation makes fluid can pass through smoothly safety check.When reverse fluid flow, making non-return sheet 3 be close on support aperture plate 6 under the effect of pressure, stop fluid to pass through, play the non-return effect.
Claims (2)
1. safety check simple in structure, comprise that valve seat (1), valve gap (2), non-return sheet (3), gasket seal (4) is characterized in that: described valve seat (1) one end is import (5), and the other end is provided with internal thread; Be provided with in the import (5) of valve seat (1) and support aperture plate (6); The inwall of valve seat (1) is provided with projection (7); Valve gap (2) is provided with outside thread; Valve gap (2) is threaded with valve seat (1), and its gap location is provided with gasket seal (4); Non-return sheet (3) fits with support aperture plate (6) by projection (7) connecting valve seat (1).
2. a kind of safety check simple in structure according to claim 1, it is characterized in that: described non-return sheet (3) is for circular, its radius is greater than import (5) internal diameter, made by soft rubber, thickness is not less than 3mm, outer rim is provided with a half-circle projection (31), has a square hole (32) on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670952 CN203009935U (en) | 2012-12-08 | 2012-12-08 | Simple-structured check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670952 CN203009935U (en) | 2012-12-08 | 2012-12-08 | Simple-structured check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009935U true CN203009935U (en) | 2013-06-19 |
Family
ID=48601532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220670952 Expired - Lifetime CN203009935U (en) | 2012-12-08 | 2012-12-08 | Simple-structured check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006190A (en) * | 2014-06-16 | 2014-08-27 | 吉林大学 | Integral type check valve |
| CN106577184A (en) * | 2017-02-21 | 2017-04-26 | 闫婷婷 | Modern agricultural drop irrigation system without energy consumption |
-
2012
- 2012-12-08 CN CN 201220670952 patent/CN203009935U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006190A (en) * | 2014-06-16 | 2014-08-27 | 吉林大学 | Integral type check valve |
| CN106577184A (en) * | 2017-02-21 | 2017-04-26 | 闫婷婷 | Modern agricultural drop irrigation system without energy consumption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |