CN205877292U - Soft seal swing check valve - Google Patents
Soft seal swing check valve Download PDFInfo
- Publication number
- CN205877292U CN205877292U CN201620741405.5U CN201620741405U CN205877292U CN 205877292 U CN205877292 U CN 205877292U CN 201620741405 U CN201620741405 U CN 201620741405U CN 205877292 U CN205877292 U CN 205877292U
- Authority
- CN
- China
- Prior art keywords
- valve
- rocking arm
- flap
- check valve
- soft seal
- 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 - Fee Related
Links
Abstract
The utility model relates to a soft seal swing check valve. The owner has mainly solved the problem that check valve sealing performance is poor, the noise is big. Valve body upper end be equipped with first step, first step be equipped with face to face the second step, first step have the crotch through bolted connection, the crotch articulated through round pin axle and rocking arm, the rocking arm on be equipped with the rocking arm hole, the valve clack intermediate position be equipped with the screw spindle, the screw spindle pass the rocking arm hole and pass through nut and valve clack fixed connection. This soft seal swing check valve sealing performance is good, noise in the time of can effectively reducing the valve clack and open and shut, and it is practical convenient to have, simple structure, easily advantage such as popularization.
Description
Technical field
This utility model relates to a kind of valve, is specifically related to a kind of soft seal swing check valve.
Background technology
Check-valves refers to rely on medium itself to flow and automatic open and close flap, is used for the valve preventing medium from flowing backwards, also known as
Non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, and its Main Function is to prevent medium from falling
Stream, prevent pump and drive motor reversion, and the releasing of vessel media.
Check-valves flap shaft of the prior art is general and flap body designs for integral type, generally solid construction, produces
Product are relative complex in processing, and the product cost of raw material is higher, poor sealing performance, and the when of flap Guan Bi, noise is big, stream
Logical poor performance, is highly desirable to make to improve for this part-structure for current market with keen competition.
Utility model content
In order to overcome the deficiency of background technology, this utility model provides a kind of soft seal swing check valve, mainly solves
The problem that check valve seal performance is poor, noise is big, this soft seal swing check valve good seal performance, it is possible to effectively reduce valve
Noise during lobe folding, has practical and convenient, simple in construction, it is easy to the advantages such as popularization.
This utility model be the technical scheme is that a kind of soft seal swing check valve, including valve body, flap, valve
Covering and valve seat, described valve gap is located at the upper end of valve body, and described flap is pressed on valve seat, and described valve seat is located at valve body chamber
In, described valve body upper end is provided with first step, and described first step opposite is provided with second step, and described first step leads to
Crossing bolt connection and have crotch, described crotch is hinged with rocking arm by bearing pin, and described rocking arm is provided with rocking arm hole, described valve
Lobe centre position is provided with thread spindle, and described thread spindle is connected through rocking arm hole by nut and flap are fixing.
Further, the sealing surface between described valve seat and flap and vertical have the angle of 3 ° ~ 10 °.
Further, the diameter in described rocking arm hole is more than the diameter of thread spindle.
Further, described valve clack sealing surface is provided with annular dovetail slot, is provided with at sulfuration in described dovetail groove
The rubber seal of reason.
Further, it is provided with sealing gasket at described valve gap and valve seal.
Further, described valve gap is provided with bracelet.
The beneficial effects of the utility model are: owing to taking technique scheme, and this soft seal swing check valve seals
Performance is good, it is possible to effectively reduces noise during flap folding, has practical and convenient, simple in construction, it is easy to the advantages such as popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure 1, valve body；2, flap；3, valve gap；4, valve seat；5, first step；6, second step；7, bolt；8, crotch；
9, bearing pin；10, rocking arm；11, rocking arm hole；12, thread spindle；13, nut；14, annular dovetail slot；15, rubber seal；16, close
Packing；17, bracelet.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is described further.
As it is shown in figure 1, a kind of soft seal swing check valve, including valve body 1, flap 2, valve gap 3 and valve seat 4, described
Valve gap 3 is located at the upper end of valve body 1, and described flap 2 is pressed on valve seat 4, and described valve seat 4 is located at valve body 1 intracavity, described valve
Body 1 upper end is provided with first step 5, and described first step 5 opposite is provided with second step 6, and described first step 5 passes through bolt
7 connections have crotch 8, and described crotch 8 is hinged with rocking arm 10 by bearing pin 9, and described rocking arm 10 is provided with rocking arm hole 11, described
Flap 2 centre position be provided with thread spindle 12, described thread spindle 12 is fixing with flap 2 even by nut 13 through rocking arm hole 11
Connect.
Preferably, the sealing surface between described valve seat 4 and flap 2 and vertical have the angle of 3 ° ~ 10 °；Described
The diameter in rocking arm hole 11 is more than the diameter of thread spindle 12.There is certain interval and can facilitate flap 2 in thread spindle 12 and rocking arm hole 11
Freely regulate.
Preferably, described flap 2 sealing surface is provided with annular dovetail slot 14, is provided with through sulfuration in described dovetail groove 14
The rubber seal 15 processed.Arranging rubber seal 15 on flap 2 sealing surface, this structure is energy in the case of medium active force
Enough zero leakages ensureing to seal, and it is effectively reduced noise when flap 2 is closed.
Preferably, described valve gap 3 is provided with sealing gasket 16 at valve body 1 sealing；Described valve gap 3 is provided with bracelet 17.
Sealing gasket 16 can further improve the sealing of check-valves, bracelet 17 the dismounting facilitating valve gap 3 is set, handling is installed more
Laborsaving.
During use, flap 2, under the promotion of medium, is lifted up around bearing pin 9 with rocking arm 10, opens valve, when rocking arm 10
It is valve maximum opening that position is lifted to during second step 6 position, and second step 6 can play spacing effect.When medium stream complete it
After, flap 2 to the valve seat 4 of valve body 1 thus forms sealing due to the automatic attaching that acts on of center of gravity, closes valve.Said structure
Reasonable in design with rocking arm 10 of crotch 8, enable check-valves full flow by medium, compact conformation, do not waste material, maintenance
Convenience and sealing member sealing effectiveness are good, thus also extend service life.
This soft seal swing check valve good seal performance, it is possible to effectively reduce noise during flap folding, there is practicality
Convenient, simple in construction, it is easy to the advantages such as popularization.
Every technical staff's notice: although this utility model describes according to above-mentioned detailed description of the invention, but this
The invention thought of utility model is not limited to that utility model, the repacking of any utilization inventive concept, all will include this in specially
In profit scope of patent protection.
Claims (3)
1. a soft seal swing check valve, it is characterised in that: include that valve body, flap, valve gap and valve seat, described valve gap set
In the upper end of valve body, described flap is pressed on valve seat, and described valve seat is located at valve body intracavity, and described valve body upper end is provided with
One step, described first step opposite is provided with second step, and described first step has been bolted crotch, described
Crotch is hinged with rocking arm by bearing pin, and described rocking arm is provided with rocking arm hole, and described flap centre position is provided with thread spindle, institute
The thread spindle stated is connected through rocking arm hole by nut and flap are fixing, and the diameter in described rocking arm hole is straight more than thread spindle
Footpath, the sealing surface between described valve seat and flap and vertical have the angle of 3 ° ~ 10 °, described valve clack sealing surface set
There is annular dovetail slot, in described dovetail groove, be provided with the rubber seal through vulcanizing treatment.
Soft seal swing check valve the most according to claim 1, it is characterised in that: at described valve gap and valve seal
It is provided with sealing gasket.
Soft seal swing check valve the most according to claim 1, it is characterised in that: described valve gap is provided with bracelet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620741405.5U CN205877292U (en) | 2016-07-12 | 2016-07-12 | Soft seal swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620741405.5U CN205877292U (en) | 2016-07-12 | 2016-07-12 | Soft seal swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205877292U true CN205877292U (en) | 2017-01-11 |
Family
ID=57696330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620741405.5U Expired - Fee Related CN205877292U (en) | 2016-07-12 | 2016-07-12 | Soft seal swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205877292U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202184A (en) * | 2017-07-13 | 2017-09-26 | 辽宁飞鸿达蒸汽节能设备有限公司 | Check-valves is opened in piston type rotation |
| CN108626445A (en) * | 2018-06-27 | 2018-10-09 | 浙江金浦实业有限公司 | Double-flap check valve |
| CN109458476A (en) * | 2017-09-06 | 2019-03-12 | 盐城思达德民力阀门有限公司 | A kind of swing check valve |
| CN110067878A (en) * | 2019-05-31 | 2019-07-30 | 苏州优德通力科技有限公司 | A kind of elastomeric check valve |
| CN114017527A (en) * | 2021-10-18 | 2022-02-08 | 上海沪东造船阀门有限公司 | Maritime work ultralow-temperature check valve |
-
2016
- 2016-07-12 CN CN201620741405.5U patent/CN205877292U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202184A (en) * | 2017-07-13 | 2017-09-26 | 辽宁飞鸿达蒸汽节能设备有限公司 | Check-valves is opened in piston type rotation |
| CN107202184B (en) * | 2017-07-13 | 2023-05-26 | 辽宁飞鸿达蒸汽节能设备有限公司 | Piston type swing check valve |
| CN109458476A (en) * | 2017-09-06 | 2019-03-12 | 盐城思达德民力阀门有限公司 | A kind of swing check valve |
| CN108626445A (en) * | 2018-06-27 | 2018-10-09 | 浙江金浦实业有限公司 | Double-flap check valve |
| CN110067878A (en) * | 2019-05-31 | 2019-07-30 | 苏州优德通力科技有限公司 | A kind of elastomeric check valve |
| CN114017527A (en) * | 2021-10-18 | 2022-02-08 | 上海沪东造船阀门有限公司 | Maritime work ultralow-temperature check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20190712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |