CN203453558U - Axial flow type check valve - Google Patents
Axial flow type check valve Download PDFInfo
- Publication number
- CN203453558U CN203453558U CN201320576015.3U CN201320576015U CN203453558U CN 203453558 U CN203453558 U CN 203453558U CN 201320576015 U CN201320576015 U CN 201320576015U CN 203453558 U CN203453558 U CN 203453558U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- axial flow
- flow type
- guide sleeve
- 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
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Abstract
The utility model relates to an axial flow type check valve, which comprises a valve body, a valve clack assembly and a locking screw, wherein the valve body is integrally formed; the valve clack assembly is fixed in the valve body through the locking screw, and comprises a valve clack, a valve shaft and a valve clack support frame; a spring is sleeved outside the valve shaft, and is arranged between the valve clack and the valve clack support frame; the valve shaft and the valve clack support frame form piston fit; a guide sleeve is arranged outside the spring, forms sliding fit with the valve clack support frame, and is fixed on the valve clack in a welding way. According to the axial flow type check valve, the guide sleeve is welded on the valve clack, and forms the sliding fit with the valve clack support frame, so that stress on the valve shaft is reduced and shared; by the guide sleeve, the frictional force of the valve shaft in the valve clack support frame is reduced, the service life of the valve shaft is prolonged, and the coaxiality of the valve shaft is also improved.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of axial flow type check valve.
Background technique
In industrial pipeline, in order to prevent that pipeline medium from flowing backwards, cause the damage of kinetic pump, usually at delivery side of pump design and installation safety check, medium can only be flowed towards a direction, and current safety check adopts fixedly flap of valve shaft more, and valve shaft is with respect to the displacement back and forth of flap supporting frame, because flap head is heavy, only depend on valve shaft to support the weight of flap, easily cause valve shaft crooked, reduced the coaxality of valve shaft, make valve operation dumb, and the displacement amount back and forth of valve shaft and flap supporting frame will be grown, otherwise be not easy for sutaining valve lobe, cause the volume of safety check larger.
Model utility content
The utility model provides a kind of axial flow type check valve, adopts between flap and flap supporting frame and installs guide sleeve additional, together with valve shaft, flap is played a supporting role, and by the leading role of guide sleeve, improves the coaxality of valve shaft.
The technological scheme that the utility model adopts is:
A kind of axial flow type check valve, it comprises valve body, flap assembly parts and lock screw, described valve body is one-body molded, described flap assembly parts is fixed in valve body by lock screw, described flap assembly parts comprises flap, valve shaft and flap supporting frame, the outer sheathed spring of described valve shaft, described spring fitting is between flap and flap supporting frame, described valve shaft becomes piston to coordinate with flap supporting frame, described spring is provided with guide sleeve outward, described guide sleeve forms slippage with flap supporting frame and coordinates, and described guide sleeve is fixed on flap by the mode of welding.
Described flap front end be provided with valve body in the annular slope that port matches of intaking.
On described annular slope, place Sealing.
Described guide sleeve is provided with bleeder port.
Described flap supporting frame end is provided with air outlet hole.
The utility model is welded on guide sleeve on flap, by guide sleeve, coordinate with the slippage between flap supporting frame, reduce the stressed of valve shaft, shared the strength of valve shaft, also by guide sleeve, reduced the frictional force of valve shaft in flap supporting frame, improve its working life, also improved the coaxality of valve shaft.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A place enlarged view in Fig. 1.
Fig. 3 is B place enlarged view in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of axial flow type check valve, it comprises valve body 1, flap assembly parts and lock screw 5, described valve body 1 is one-body molded, described flap assembly parts is fixed in valve body 1 by lock screw 5, described flap assembly parts comprises flap 2, valve shaft 6 and flap supporting frame 4, the outer sheathed spring 3 of described valve shaft 6, described spring 3 is arranged between flap 2 and flap supporting frame 4, described valve shaft 6 forms piston with flap supporting frame 4 and coordinates, the outer guide sleeve 7 that is provided with of described spring 3, described guide sleeve 7 forms slippage with flap supporting frame 4 and coordinates, described guide sleeve 7 is fixed on flap 2 by the mode of welding.
The utility model is arranged on flowing medium pipeline and uses, front end is in the upstream of fluid, fluid is when forward flow, the fluid of forward flow can promote the axis that flap 2 leaves the front end edge valve body 1 of valve body 1 and slide backward, in closing process, flap 2 is subject to the damping of spring 3, makes flap 2 slowly closings.When forward fluid does not exist, due to the restoring force of spring 3, can promote flap 2 slowly toward front slide, make flap 2 again revert to closed condition.
And be weldingly fixed on the guide sleeve on flap; both played the effect that protecting jacket is located at the spring 3 on valve shaft 6; it coordinates the frictional force that can effectively reduce valve shaft 6 with the slippage between flap supporting frame 4 simultaneously; the matching relationship between itself and flap supporting frame 4 simultaneously; also can play certain supporting effect; can not make flap 2 overall weight all by valve shaft 6, support, alleviate the work load of valve shaft 6, can effectively guarantee its coaxality.
Described flap 2 front ends are provided with the annular slope matching with the interior water inlet port of valve body 1.The interior water inlet port of described valve body 1 is provided with the annular slope matching with flap 2.On described annular slope, place Sealing 8.By Sealing 8 is set on annular slope, make flap 2 by the effect of the restoring force of spring 3, can fit tightly preferably, improve its sealing.
Described guide sleeve 7 is provided with bleeder port 71, and described flap supporting frame 4 ends are provided with air outlet hole 41.Adopt the design of bleeder port 71 and air outlet hole 41, reduce valve shaft 6 difficulty of slippage backward, make fluid can easily simply promote flap 2 and open.
Below described embodiment is only preferred implementation of the present utility model by reference to the accompanying drawings, and the not restriction to protection domain of the present utility model, any improvement of doing based on the utility model spirit all ought to be within the utility model protection domain.
Claims (5)
1. an axial flow type check valve, it comprises valve body (1), flap assembly parts and lock screw (5), described valve body (1) is one-body molded, described flap assembly parts is fixed in valve body (1) by lock screw (5), it is characterized in that: described flap assembly parts comprises flap (2), valve shaft (6) and flap supporting frame (4), the outer sheathed spring (3) of described valve shaft (6), described spring (3) is arranged between flap (2) and flap supporting frame (4), described valve shaft (6) forms piston with flap supporting frame (4) and coordinates, described spring outer (3) is provided with guide sleeve (7), described guide sleeve (7) forms slippage with flap supporting frame (4) and coordinates, described guide sleeve (7) is fixed on flap (2) by the mode of welding.
2. axial flow type check valve according to claim 1, is characterized in that, described flap (2) front end is provided with the annular slope matching with the interior water inlet of valve body (1) port.
3. axial flow type check valve according to claim 2, is characterized in that, places Sealing (8) on described annular slope.
4. axial flow type check valve according to claim 1, is characterized in that, described guide sleeve (7) is provided with bleeder port (71).
5. axial flow type check valve according to claim 1, is characterized in that, described flap supporting frame (4) end is provided with air outlet hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576015.3U CN203453558U (en) | 2013-09-17 | 2013-09-17 | Axial flow type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576015.3U CN203453558U (en) | 2013-09-17 | 2013-09-17 | Axial flow type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453558U true CN203453558U (en) | 2014-02-26 |
Family
ID=50133434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320576015.3U Expired - Fee Related CN203453558U (en) | 2013-09-17 | 2013-09-17 | Axial flow type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453558U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455585A (en) * | 2014-12-04 | 2015-03-25 | 圣博莱阀门有限公司 | Ultralow-temperature axial-flow type check valve |
| CN105003694A (en) * | 2015-07-17 | 2015-10-28 | 纽威石油设备（苏州）有限公司 | Impact resisting check valve |
| CN107567560A (en) * | 2015-02-24 | 2018-01-09 | 古德温国际有限公司 | Nozzle and non-return valve |
| CN108413084A (en) * | 2018-05-16 | 2018-08-17 | 徐津 | A kind of gas check (non-return) valve and exhaust apparatus |
| CN108487379A (en) * | 2018-04-08 | 2018-09-04 | 王涛 | It is a kind of can the water purification storage tank infused tea with water of larger office area without interruption |
-
2013
- 2013-09-17 CN CN201320576015.3U patent/CN203453558U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455585A (en) * | 2014-12-04 | 2015-03-25 | 圣博莱阀门有限公司 | Ultralow-temperature axial-flow type check valve |
| CN107567560A (en) * | 2015-02-24 | 2018-01-09 | 古德温国际有限公司 | Nozzle and non-return valve |
| US10837564B2 (en) | 2015-02-24 | 2020-11-17 | Goodwin Plc | Nozzle check valve |
| CN105003694A (en) * | 2015-07-17 | 2015-10-28 | 纽威石油设备（苏州）有限公司 | Impact resisting check valve |
| CN108487379A (en) * | 2018-04-08 | 2018-09-04 | 王涛 | It is a kind of can the water purification storage tank infused tea with water of larger office area without interruption |
| CN108413084A (en) * | 2018-05-16 | 2018-08-17 | 徐津 | A kind of gas check (non-return) valve and exhaust apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20190917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |