CN202756699U - Anti-blocking check valve with good tightness - Google Patents
Anti-blocking check valve with good tightness Download PDFInfo
- Publication number
- CN202756699U CN202756699U CN 201220432750 CN201220432750U CN202756699U CN 202756699 U CN202756699 U CN 202756699U CN 201220432750 CN201220432750 CN 201220432750 CN 201220432750 U CN201220432750 U CN 201220432750U CN 202756699 U CN202756699 U CN 202756699U
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- China
- Prior art keywords
- inlet
- valve body
- liquid
- entering hole
- valve clack
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- Expired - Fee Related
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Abstract
The utility model provides an anti-blocking check valve with good tightness and relates to a check valve. The anti-blocking check valve with the good tightness comprises a valve body and a spherical valve clack. The upper end and the lower end of the valve body are respectively provided with an outlet and an inlet. A side wall of the outlet and a side wall of the inlet are respectively provided with an outlet joint and an inlet joint. A liquid guiding limiting plate is arranged longitudinally in the middle portion inside the valve body. An upstream end face arranged on the lower portion of the liquid guiding limiting plate is a smooth inclined surface. The spherical valve clack is arranged on the inlet arranged below the liquid guiding limiting plate. An arc-shaped contact surface matched with the spherical valve clack is arranged above the inlet. Hair and other dirt in sewage can not be hooked due to the fact that the upstream end face arranged on the lower portion of the liquid guiding limiting plate is the smooth inclined surface. Due to the fact that the arc-shaped contact surface matched with the spherical valve clack is arranged above the inlet, when the spherical valve clack is in a non-return situation, the spherical valve clack and the inlet are in surface contact, and therefore when the spherical valve clack or the inlet portion is partially abraded slightly, tightness is not affected. The anti-blocking check valve with the good tightness has the advantages of being simple in structure, not prone to be blocked, long in operational use time, and good in tightness.
Description
Technical field
The utility model relates to safety check, says in detail the anti-blocking safety check of the good airproof performance that is on a kind of fluid machinery, particularly uses on the plumbing drain.
Background technique
As everyone knows, safety check is called again reflux valve, check valve etc., and this class valve mainly is that the medium mobile power that produces in tube road itself realizes opening and closing automatically, and belongs to a kind of automatic valve.Safety check is used for pipe-line system, and its Main Function is to prevent that medium from flowing backwards, preventing pump and drive motor counter-rotating thereof, prevents from that container inner medium from refluxing to release.Safety check also can be used for providing on the pipeline of supply to the auxiliary system that wherein pressure may rise to above main system pressure.Existing safety check comprises valve body, flap and leading truck, between the liquid inlet in valve body and liquid outlet leading truck is set, flap is set in the leading truck, the moving direction of leading truck guiding flap, leading truck top laterally is provided with pin, and pin stops that flap avoids affecting liquid and flow out, and the patent No. of announcing on June 11st, 2008 such as State Intellectual Property Office is 200720043177.5 ball check valve patent, three guide rods are set, and the fluid output inboard is provided with the U-shaped pin.This safety check, complex structure in the valve body, and the parts that cross setting is arranged in valve body, when being used for plumbing drain, the strip impurity such as the hair in the sewage can hang over choke valve body on guide rod and the pin, often the dismounting cleaning is wasted time and energy, the impact normal operation, during this ball check valve sealing non-return, between globe disk and liquid inlet for line contacts, when globe disk or liquid inlet are located slight wearing and tearing are arranged, the space appears in globe disk and place, liquid inlet, liquid refluxes, and the sealing of valve body is poor, and overall performance descends.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, be not easy to block, the effective time is long, avoids impact to work the anti-blocking safety check of good airproof performance.
The technological scheme that the above-mentioned prior art deficiency that solves the utility model adopts is:
A kind of anti-blocking safety check of good airproof performance, comprise valve body and globe disk, valve body is respectively equipped with liquid outlet and liquid entering hole in two ends up and down, be respectively equipped with fluid joint and liquid inlet joint on the sidewall of liquid outlet and liquid entering hole, it is characterized in that the middle part vertically is provided with the water conservancy diversion limiting board in the valve body, the end face that meets water of water conservancy diversion limiting board bottom is smooth bevel, and globe disk is arranged on the liquid entering hole of water conservancy diversion limiting board below, and the liquid entering hole top is provided with the arc contact surface that matches with globe disk.
The valve body bottom is funnel-like with the liquid entering hole adjacent in the utility model.Easier falling in liquid entering hole when globe disk is fallen after rise.
During use, vertically be installed in the utility model on the plumbing drain by fluid joint and liquid inlet joint, during work, sewage with certain pressure backs down globe disk from bottom to top, because the position-limiting action of water conservancy diversion limiting board, globe disk is limited in middle part in the valve body, and sewage is discharged by liquid outlet through water conservancy diversion limiting board water conservancy diversion.Because the end face that meets water of water conservancy diversion limiting board bottom is smooth bevel, situation can not appear being tangled in any dirts such as the hair in the sewage, even there is dirt to be blocked by globe disk, globe disk is in the moment of vacant state when current slow down, and dirt also can pass through immediately.In that oppositely the liquid outflow is current, thereby falling to blocking liquid entering hole, ball sealer plays the non-return effect.Because the liquid entering hole top is provided with the arc contact surface that matches with globe disk, when globe disk is in the non-return state, contact for face between globe disk and liquid inlet, when there are the slight wearing and tearing of part at globe disk or liquid inlet place, do not affect sealing, the utility model structure is simple, be not easy to block, effective time is long, good airproof performance, frequent detachable maintaining, time saving and energy saving and not impact system normal operation.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
The anti-blocking safety check of good airproof performance as shown in the figure, comprise valve body 4 and globe disk 5, valve body is respectively equipped with liquid outlet 2 and liquid entering hole 8 in two ends about in the of 4, be respectively equipped with fluid joint 1 and liquid inlet joint 7 on the sidewall of liquid outlet 2 and liquid entering hole 8, as can be seen from the figure liquid joint 1 and liquid inlet joint 7 are flange, the convenient connection.The middle part vertically is provided with water conservancy diversion limiting board 3 in the valve body, and middle part week upwards evenly arranges at least three water conservancy diversion limiting boards in the valve body of the present utility model, globe disk can be limited to the middle part of valve body, strengthens the flowability of liquid.The end face that meets water of water conservancy diversion limiting board 3 bottoms is smooth bevel, and globe disk is arranged on the liquid entering hole of water conservancy diversion limiting board below, and the liquid entering hole top is provided with the arc contact surface 6 that matches with globe disk 5.During use, vertically be installed in the utility model on the plumbing drain by fluid joint and liquid inlet joint, during work, sewage with certain pressure backs down globe disk from bottom to top, because the position-limiting action of water conservancy diversion limiting board, globe disk is limited in middle part in the valve body, and sewage is discharged by liquid outlet through water conservancy diversion limiting board water conservancy diversion.Because the end face that meets water of water conservancy diversion limiting board bottom is smooth bevel, situation can not appear being tangled in any dirts such as the hair in the sewage, even there is dirt to be blocked by globe disk, globe disk is in the moment of vacant state when current slow down, and dirt also can pass through immediately.In that oppositely the liquid outflow is current, thereby falling to blocking liquid entering hole, ball sealer plays the non-return effect, as can be seen from the figure, the valve body adjacent with liquid entering hole is funnel-like, easier falling in liquid entering hole when globe disk falls after rise.Because the liquid entering hole top is provided with the arc contact surface that matches with globe disk, when globe disk is in the non-return state, for face contacts, when there are the slight wearing and tearing of part at globe disk or place, liquid inlet, do not affect sealing between globe disk and liquid inlet, the utility model structure is simple, be not easy to block, effective time is long, good airproof performance, often detachable maintaining, the dismounting frequency is low, time saving and energy saving and not impact system normal operation.
Claims (2)
1. the anti-blocking safety check of a good airproof performance, comprise valve body and globe disk, valve body is respectively equipped with liquid outlet and liquid entering hole in two ends up and down, be respectively equipped with fluid joint and liquid inlet joint on the sidewall of liquid outlet and liquid entering hole, it is characterized in that the middle part vertically is provided with the water conservancy diversion limiting board in the valve body, the end face that meets water of water conservancy diversion limiting board bottom is smooth bevel, and globe disk is arranged on the liquid entering hole of water conservancy diversion limiting board below, and the liquid entering hole top is provided with the arc contact surface that matches with globe disk.
2. the anti-blocking safety check of good airproof performance according to claim 1 is characterized in that described valve body bottom is funnel-like with the liquid entering hole adjacent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220432750 CN202756699U (en) | 2012-08-29 | 2012-08-29 | Anti-blocking check valve with good tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220432750 CN202756699U (en) | 2012-08-29 | 2012-08-29 | Anti-blocking check valve with good tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756699U true CN202756699U (en) | 2013-02-27 |
Family
ID=47735883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220432750 Expired - Fee Related CN202756699U (en) | 2012-08-29 | 2012-08-29 | Anti-blocking check valve with good tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756699U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036041A (en) * | 2015-08-11 | 2015-11-11 | 玉环县和成铜业有限公司 | Distributor |
| CN105135006A (en) * | 2015-08-21 | 2015-12-09 | 杭州水利水电勘测设计院有限公司 | Novel device for closure of small pump station |
| CN105546166A (en) * | 2016-03-03 | 2016-05-04 | 芜湖耐得胶管阀业有限公司 | Ball-element check valve |
| CN106439160A (en) * | 2016-11-17 | 2017-02-22 | 成都聚智工业设计有限公司 | Switch valve |
| CN108591032A (en) * | 2018-07-06 | 2018-09-28 | 上海如迪流体输送设备有限公司 | Sanitary pneumatic diaphragm pump |
-
2012
- 2012-08-29 CN CN 201220432750 patent/CN202756699U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036041A (en) * | 2015-08-11 | 2015-11-11 | 玉环县和成铜业有限公司 | Distributor |
| CN105135006A (en) * | 2015-08-21 | 2015-12-09 | 杭州水利水电勘测设计院有限公司 | Novel device for closure of small pump station |
| CN105135006B (en) * | 2015-08-21 | 2018-05-15 | 杭州水利水电勘测设计院有限公司 | Small pumping station shuts off new equipment |
| CN105546166A (en) * | 2016-03-03 | 2016-05-04 | 芜湖耐得胶管阀业有限公司 | Ball-element check valve |
| CN106439160A (en) * | 2016-11-17 | 2017-02-22 | 成都聚智工业设计有限公司 | Switch valve |
| CN108591032A (en) * | 2018-07-06 | 2018-09-28 | 上海如迪流体输送设备有限公司 | Sanitary pneumatic diaphragm pump |
| CN108591032B (en) * | 2018-07-06 | 2024-02-02 | 上海如迪流体输送设备有限公司 | Sanitary pneumatic diaphragm pump |
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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: 20130227 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |