CN105909832A - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN105909832A CN105909832A CN201610483706.7A CN201610483706A CN105909832A CN 105909832 A CN105909832 A CN 105909832A CN 201610483706 A CN201610483706 A CN 201610483706A CN 105909832 A CN105909832 A CN 105909832A
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- spring
- diameter
- bonnet
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention belongs to the field of valves, and particularly relates to a check valve. The check valve comprises a valve seat, a valve cover, a valve ball and a spring, wherein the valve seat and the valve cover are connected through an external fixing piece. The check valve is characterized in that a spring limiting groove is formed in the upper portion of the valve cover; a valve ball guide groove is formed in the middle of the valve cover; an inlet below the valve cover is elastic; the diameter of the inlet below the valve cover is smaller than that of the valve ball; one end of the spring is arranged inside the spring limiting groove; the other end of the spring is matched with the upper portion of the valve ball; and the lower portion of the valve ball is in contact fit with a center hole of the valve seat. The check valve has the advantages of being easy and convenient to install and maintain, people who slightly see the specification or understand little machines can easily install and maintain the check valve without professional knowledge, and for manufacturers and users, the production cost and maintenance expenses are greatly reduced.
Description
Technical field
The invention belongs to valve field, be specially a kind of check valve.
Background technology
The inlet one-way valve being currently used on dosing pump and Outlet check valves are divided into free style and forced action type.When dosing pump conveying has the liquid medium of certain viscosity, forced action type inlet one-way valve and Outlet check valves typically must be used.Forced action type check valve is to have one to determine a valve chest for internal fluid channels that line extends along its longitudinal axis, the valve body of determination one valve seat and the closure body being positioned at passage, it can overcome the closing forces axially-movable in passage closing spring, in order to moves between the open position lifted on the closed position being fitted on valve body and the valve seat from closure body.Due to the existence of initial tension of spring, forced action type check valve has a lot of inconvenience when installing and clean, particularly during closure body employing valve ball class.The design of existing market, check valve installation personnel and user attendant after using the regular hour for dosing pump have the highest requirement.Because not according to certain program dismounting, often according to becoming valve ball to drop to the ground, so that whole dosing pump equipment cannot use owing to lacking valve ball.The method that many dosing pump producers are commonly used now is: 1, send the attendant of producer's specialty to go user to carry out periodic maintenance and maintenance here；2, dosing pump transport to user here time, producer sends professional to give training, until user grasps this method；3, some valve balls of polygamy, carry out telephone guidance installation when user safeguards, the valve ball as training of polygamy；4, allowing the how standby dosing pump of user, a whole set of dosing pump that will clean beams back producer, after having safeguarded, beams back user here from newly.Dosing pump producer or user have all been paid very big use cost by the most any method.Therefore, in the urgent need to a installation and safeguard simple check valve apparatus on market.
Summary of the invention
For problems of the prior art, it is an object of the invention to provide the technical scheme of a kind of check valve.
Described a kind of check valve, including valve seat, valve bonnet, valve ball and spring, valve seat is connected by external fixator with valve bonnet, it is characterized in that described valve bonnet is provided above spring retainer groove, valve ball gathering sill it is provided with in the middle part of valve bonnet, import below valve bonnet has elasticity, and the diameter of the import below valve bonnet is less than the diameter of ball valve；Described spring one end is arranged in spring retainer groove, and the spring other end matches with valve ball top, and described valve ball bottom touches with the centre bore of valve seat and coordinates.
Described a kind of check valve, it is characterised in that the diameter of the centre bore of described valve seat is less than the diameter of the import below valve bonnet.
Described a kind of check valve, it is characterised in that the radius being smaller than valve ball of the import below the centre bore of described valve seat and valve bonnet.
Described a kind of check valve, it is characterised in that the diameter of described spring retainer groove is less than the diameter of valve ball gathering sill.
Described a kind of check valve, it is characterised in that described valve bonnet uses plastic material to make.
Described a kind of check valve, it is characterised in that the diameter of described valve ball is less than the diameter of valve ball gathering sill.
It is an advantage of the invention that installation and safeguard simple and convenient, it is not necessary to the knowledge of specialty, if having a look slightly description or slightly understand the personnel of machinery just can left-hand seat the most easily, from the point of view of manufacturer and user, greatly reduce production cost and maintenance cost.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present invention；
Fig. 2 is the sectional structure schematic diagram of valve bonnet of the present invention；
In figure: 1-valve bonnet；2-valve seat；3-valve ball；4-spring；A-spring retainer groove；B-valve ball gathering sill；Import below c-valve bonnet.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described:
A kind of check valve, including valve seat 2, valve bonnet 1, valve ball 3 and spring 4, valve seat 2 is connected by external fixator with valve bonnet 1, valve bonnet 1 uses plastic material to make, valve bonnet 1 is provided above spring retainer groove a, is provided with valve ball gathering sill b in the middle part of valve bonnet 1, and the import c below valve bonnet has elasticity, the diameter of the import c below valve bonnet can enter and not fall off by the import c below valve bonnet less than the diameter of ball valve 3, valve ball 3；Spring 4 one end is arranged in spring retainer groove a, and spring 4 other end matches with valve ball top, and valve ball 3 bottom touches with the centre bore of valve seat 2 and coordinates；The diameter of the centre bore of valve seat 2 diameter less than the import c below valve bonnet, the radius being smaller than valve ball 3 of the import c below the centre bore of valve seat 2 and valve bonnet, the diameter of valve ball 3 is less than the diameter of valve ball gathering sill b and is more than the diameter of spring retainer groove a, above-mentioned setting mainly can facilitate valve ball to enter valve bonnet and not fall off, and can be blocked completely by the centre bore on valve seat in valve ball movement travel.
During assembling, first spring 4 one end is loaded in the projection of valve bonnet 1, make the import c below valve bonnet produce certain plastic deformation under a precompression effect and valve ball 3 is pressed into valve bonnet 1, matched with spring 4 other end, spring 4 is made to produce certain pretightning force, simultaneously bottom valve ball 3 with valve bonnet below import c clamping, finally by matched by external fixator to valve seat 2 and valve bonnet 1.
When check valve is dirty to be cleaned, pull down valve seat, it is possible to clean, clean complete reinstalling.
In sum: due to the existence of the import c below valve bonnet, make installation and safeguard simple and convenient, it is not necessary to the knowledge of specialty, as long as having a look slightly description or slightly understanding that the personnel of machinery the most just can left-hand seat.From the point of view of manufacturer and user, greatly reducing production cost and maintenance cost, the most indirectly expense the most greatly reduces.
Claims (6)
1. a check valve, including valve seat, valve bonnet, valve ball and spring, valve seat is connected by external fixator with valve bonnet, it is characterized in that described valve bonnet is provided above spring retainer groove, valve ball gathering sill it is provided with in the middle part of valve bonnet, import below valve bonnet has elasticity, and the diameter of the import below valve bonnet is less than the diameter of ball valve；Described spring one end is arranged in spring retainer groove, and the spring other end matches with valve ball top, and described valve ball bottom touches with the centre bore of valve seat and coordinates.
A kind of check valve the most according to claim 1, it is characterised in that the diameter of the centre bore of described valve seat is less than the diameter of the import below valve bonnet.
A kind of check valve the most according to claim 1 and 2, it is characterised in that the radius being smaller than valve ball of the import below the centre bore of described valve seat and valve bonnet.
A kind of check valve the most according to claim 1, it is characterised in that the diameter of described spring retainer groove is less than the diameter of valve ball gathering sill.
A kind of check valve the most according to claim 1, it is characterised in that described valve bonnet uses plastic material to make.
A kind of check valve the most according to claim 1, it is characterised in that the diameter of described valve ball is less than the diameter of valve ball gathering sill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483706.7A CN105909832A (en) | 2016-06-28 | 2016-06-28 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483706.7A CN105909832A (en) | 2016-06-28 | 2016-06-28 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105909832A true CN105909832A (en) | 2016-08-31 |
Family
ID=56759718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610483706.7A Withdrawn CN105909832A (en) | 2016-06-28 | 2016-06-28 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105909832A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567829A (en) * | 2016-11-15 | 2017-04-19 | 合肥通用机械研究院 | Adjustable-lift one-way valve used for micro reciprocating pump |
-
2016
- 2016-06-28 CN CN201610483706.7A patent/CN105909832A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567829A (en) * | 2016-11-15 | 2017-04-19 | 合肥通用机械研究院 | Adjustable-lift one-way valve used for micro reciprocating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160831 |
|
| WW01 | Invention patent application withdrawn after publication |