CN211315121U - Lifting check valve with auxiliary positioning mechanism - Google Patents
Lifting check valve with auxiliary positioning mechanism Download PDFInfo
- Publication number
- CN211315121U CN211315121U CN201922407706.0U CN201922407706U CN211315121U CN 211315121 U CN211315121 U CN 211315121U CN 201922407706 U CN201922407706 U CN 201922407706U CN 211315121 U CN211315121 U CN 211315121U
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- CN
- China
- Prior art keywords
- valve
- clack
- positioning mechanism
- valve clack
- auxiliary positioning
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- Expired - Fee Related
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Abstract
A lifting check valve with an auxiliary positioning mechanism comprises a valve body, a valve cover, a valve clack, a guide sleeve and the auxiliary positioning mechanism. The valve comprises a valve body and is characterized in that an inflow channel and an outflow channel for medium circulation are respectively formed in two sides of the valve body, a valve cover is arranged at the top of the valve body, a guide sleeve is welded at the center of the bottom of the valve cover, a movable valve clack is arranged in the guide sleeve and comprises an upper valve clack and a lower valve clack, the upper valve clack is in clearance fit with the guide sleeve, the lower valve clack is sealed with a sealing surface of the inner wall of the valve body, an auxiliary positioning mechanism is arranged between the guide sleeve and the valve clack, and the. The advantages are that: when the valve is vertically arranged on the pipeline, the downward deviation angle of the valve clack can be effectively avoided, the sealing performance of the valve is more reliable, the influence of medium turbulence on the valve clack is reduced, and the valve clack is more stable in the closing process, so that the sealing of the valve is more reliable, and the service life of the valve is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the check valve and specifically relates to a take auxiliary positioning mechanism's over-and-under type check valve.
Background
The conventional H41 poppet check valve is structurally limited, and is preferably installed horizontally with respect to the pipe in the pipe, but is sometimes installed vertically with respect to the pipe. When the valve is vertically installed with the pipeline, the valve clack is closed, because the medium in the pipeline has high flow rate and the shape of the inner cavity of the valve body is complex, the medium in the inner cavity of the valve body is easy to form turbulent flow, and the valve clack is easy to deflect and twist in the closing process, thereby influencing the sealing and the service life of the valve; in addition, the valve clack is influenced by gravity and fit clearance and deviates to a certain angle from the lower part, the valve clack seal and the valve body seal cannot be completely attached, and the valve is very likely to leak.
Disclosure of Invention
In order to overcome the deficiencies in the prior art, the utility model provides a take auxiliary positioning mechanism's over-and-under type check valve, including valve body, valve gap, seal gasket, uide bushing, valve clack, auxiliary positioning mechanism.
The utility model provides a technical scheme that prior art problem adopted is: an inflow channel and an outflow channel for medium circulation are respectively arranged on two sides of the valve body, a valve cover is arranged on the top of the valve body, a sealing gasket is arranged between the valve cover and the valve body, the valve cover is fixed on the top of the valve body through a bolt, a guide sleeve is welded at the center of the bottom of the valve cover, the guide sleeve is a hollow straight cylinder, a movable valve clack is arranged in the guide sleeve, the straight section of the valve clack is in a T-shaped inverted shape, the valve clack comprises an upper valve clack and a lower valve clack, the upper valve clack is in clearance fit with the guide sleeve, the lower valve clack is sealed with the sealing surface of the inner wall of the valve body, the height of the upper valve clack ensures that the valve clack moves downwards to be sealed with the sealing surface of the inner wall of the, and can not break away from the guide sleeve, an auxiliary positioning mechanism is arranged between the guide sleeve and the valve clack, and the auxiliary positioning mechanism comprises a locking nut, a positioning sheet and a positioning rod.
Further, lock nut cover is established on uide bushing bottom periphery circle, and lock nut fixes the uide bushing through the mode of spot welding on, the spacer cover is established and spot welding is on the uide bushing, and the spacer is located lock nut's top and laminating lock nut, and the spacer is circular slice, is equipped with first through-hole, second through-hole on the spacer, and first through-hole is used for the spacer cover to establish at the uide bushing, and the internal diameter of first through-hole and the external diameter phase-match of uide bushing, and the second through-hole is used for installing the locating lever, and the internal diameter and the locating lever upper end external diameter phase-match of second through-hole, the locating lever upper end is the cylinder structure, and the locating lever lower extreme is the helicitic texture, and the locating lever upper end is worn to establish in.
The utility model has the advantages that: when the valve is vertically arranged on the pipeline, the downward deviation angle of the valve clack can be effectively avoided, the sealing performance of the valve is more reliable, the influence of medium turbulence on the valve clack is reduced, and the valve clack is more stable in the closing process, so that the sealing of the valve is more reliable, and the service life of the valve is prolonged.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the vertical installation structure of the present invention;
FIG. 3 is a schematic structural view of the middle positioning plate of the present invention;
in the figure, 1, a valve body, 101, an inflow channel, 102, an outflow channel, 2, a valve cover, 3, a sealing gasket, 4, a guide sleeve, 5, a valve clack, 501, an upper valve clack, 502, a lower valve clack, 6, a locking nut, 7, a positioning piece, 701, a first through hole, 702, a second through hole, 8 and a positioning rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments, and a lift check valve with an auxiliary positioning mechanism comprises a valve body 1, a valve cover 2, a sealing gasket 3, a guide sleeve 4, a valve flap 5, and an auxiliary positioning mechanism, wherein both sides of the valve body 1 are respectively provided with an inflow channel 101 and an outflow channel 102 for medium circulation, the top of the valve body 1 is provided with the valve cover 2, the sealing gasket 3 is arranged between the valve cover 2 and the valve body 1 and seals between the valve body 1 and the valve cover 2, the valve cover 2 is fixed on the top of the valve body 1 through a bolt, the center of the bottom of the valve cover 1 is welded with the guide sleeve 4, the guide sleeve 4 is a hollow straight cylinder, the movable valve flap 5 is arranged in the guide sleeve 4, the straight section of the valve flap 5 is T-shaped, the valve flap 5 comprises an upper valve flap 501 and a lower valve flap 502, the lower valve clack 501 is sealed with the sealing surface of the inner wall of the valve body 1, the height of the upper valve clack 501 is required to ensure that the valve clack 5 moves downwards in a medium backflow state to be sealed with the sealing surface of the inner wall of the valve body 1 and cannot be separated from the guide sleeve 4, an auxiliary positioning mechanism is arranged between the guide sleeve 4 and the valve clack 5, and the auxiliary positioning mechanism comprises a locking nut 6, a positioning piece 7 and a positioning rod 8.
Further, the locking nut 6 is sleeved on the outer circumference of the bottom end of the guide sleeve 4, the locking nut 6 is fixed on the guide sleeve 4 in a spot welding mode, the positioning plate 7 is sleeved and spot-welded on the guide sleeve 4, the positioning plate 7 is positioned above the locking nut 6 and is attached to the locking nut 6, the positioning plate 7 is in a circular sheet shape, the positioning plate 7 is provided with a first through hole 701 and a second through hole 702, the first through hole 701 is used for sleeving the positioning plate 7 on the guide sleeve 4, the inner diameter of the first through hole 701 is matched with the outer diameter of the guide sleeve 4, the second through hole 702 is used for installing the positioning rod 8, the inner diameter of the second through hole 702 is matched with the outer diameter of the upper end of the positioning rod 8, the upper end of the positioning rod 8 is in a cylindrical structure, the lower end of the positioning rod 8 is in a threaded structure, the upper end of the positioning rod 8 is, through the scheme, the auxiliary positioning mechanism has both a positioning function and a guiding function, the valve clack 5 is restrained by the auxiliary positioning mechanism under the condition that the valve is vertically arranged on a pipeline, the downward deviation angle of the valve clack 5 can be effectively avoided, and the sealing surface of the valve clack 5 is completely attached to the sealing surface of the valve body 1, so that sealing is realized; the valve clack 5 is restrained by the auxiliary positioning mechanism, so that the influence of medium turbulence on the valve clack 5 is reduced, the valve clack 5 is more stable in the closing process, the valve is more reliably sealed, and the service life of the valve is prolonged.
The working principle is as follows: when the valve is vertically installed on the pipeline, when the equipment normally operates, a medium enters from the valve body inflow channel 101, the pressure of the valve body inflow channel 101 is greater than that of the valve body outflow channel 102, the medium pushes the valve clack 5 to move rightwards, the medium flows to the valve body outflow channel 102, when the equipment stops operating due to a fault, the medium in the pipeline flows backwards rapidly, the pressure of the valve body outflow channel 102 is greater than that of the valve body inflow channel 101, under the action of pressure difference, the medium pushes the valve clack 5 to move leftwards, and under the positioning and guiding actions of the auxiliary positioning mechanism, downward deviation angles of the valve clack 5 are effectively avoided, finally, the sealing surface of the valve clack 5 is completely attached to the sealing surface.
The utility model arranges the auxiliary positioning mechanism between the guide sleeve 4 and the valve flap 5, so that the valve flap 5 can be effectively prevented from deviating downwards to make the sealing performance of the valve more reliable under the condition that the valve is vertically arranged on the pipeline; the influence of medium turbulence on the valve clack 5 is reduced, and the valve clack 5 is more stable in the closing process, so that the valve is more reliable in sealing, and the service life of the valve is prolonged.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a take auxiliary positioning mechanism's over-and-under type check valve, includes valve body, valve gap, seal gasket, uide bushing, valve clack, auxiliary positioning mechanism, the inflow passageway, the outflow passageway that supplies the medium circulation are seted up respectively to the valve body both sides, the valve body top is equipped with the valve gap, is equipped with seal gasket between valve gap and the valve body, and the valve gap passes through the bolt fastening at the valve body top, the welding of valve gap bottom center department has the uide bushing, is equipped with mobilizable valve clack in the uide bushing, and the valve clack includes valve clack, lower valve clack, goes up for clearance fit between valve clack and the: an auxiliary positioning mechanism is arranged between the guide sleeve and the valve clack and comprises a locking nut, a positioning sheet and a positioning rod.
2. The lift check valve with an auxiliary positioning mechanism of claim 1, wherein: the locking nut is sleeved on the periphery circle at the bottom end of the guide sleeve, and the locking nut is fixed on the guide sleeve in a spot welding mode.
3. The lift check valve with an auxiliary positioning mechanism of claim 1, wherein: the spacer cover establish and spot welding on the uide bushing, the spacer is located lock nut's top and laminating lock nut, the spacer is circular slice, is equipped with first through-hole, second through-hole on the spacer, the internal diameter of first through-hole and the external diameter phase-match of uide bushing, the internal diameter and the locating lever upper end external diameter phase-match of second through-hole.
4. The lift check valve with an auxiliary positioning mechanism of claim 1, wherein: the upper end of the positioning rod is of a cylindrical structure, the lower end of the positioning rod is of a threaded structure, the upper end of the positioning rod is arranged in the second through hole in a penetrating mode, and the lower end of the positioning rod is connected with the valve clack through threads and locked through nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922407706.0U CN211315121U (en) | 2019-12-27 | 2019-12-27 | Lifting check valve with auxiliary positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922407706.0U CN211315121U (en) | 2019-12-27 | 2019-12-27 | Lifting check valve with auxiliary positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211315121U true CN211315121U (en) | 2020-08-21 |
Family
ID=72082926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922407706.0U Expired - Fee Related CN211315121U (en) | 2019-12-27 | 2019-12-27 | Lifting check valve with auxiliary positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211315121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145760A (en) * | 2020-09-01 | 2020-12-29 | 济南德创试验仪器有限公司 | Check valve |
-
2019
- 2019-12-27 CN CN201922407706.0U patent/CN211315121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145760A (en) * | 2020-09-01 | 2020-12-29 | 济南德创试验仪器有限公司 | Check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 Termination date: 20211227 |