CN209839248U - Lifting type check valve with high sealing performance - Google Patents
Lifting type check valve with high sealing performance Download PDFInfo
- Publication number
- CN209839248U CN209839248U CN201920337303.0U CN201920337303U CN209839248U CN 209839248 U CN209839248 U CN 209839248U CN 201920337303 U CN201920337303 U CN 201920337303U CN 209839248 U CN209839248 U CN 209839248U
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- China
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- valve
- cavity
- sealing
- bar magnet
- valve body
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- Expired - Fee Related
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Abstract
The utility model discloses a high leakproofness check valve of over-and-under type, including valve body, valve gap and valve clack, fixed surface is connected with the sealing plug under the valve clack, be equipped with the cavity in the valve body, the cavity both ends all are equipped with the inside inlet opening of intercommunication valve body, the lower lateral wall of cavity passes through spring fixedly connected with bar magnet, bar magnet is connected with the lateral wall sliding seal of cavity, with the sealing plug external fixation has cup jointed the sealing washer, be equipped with the cavity in the sealing plug, be equipped with the gas pocket of intercommunication sealing washer on the lateral wall of cavity, sliding seal is connected with the magnetic slider in the cavity, bar magnet's upper end and magnetic slider heteropolar are inhaled mutually. The utility model discloses a set up the leakproofness that sealing washer and ring channel have increased the stop valve, prevent to leak in the valve, make the sealing washer shrink when opening through setting up bar magnet and gas pocket, reduced the frictional force between sealing plug and valve body, prevent that the valve from blockking up.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a high leakproofness check valve of over-and-under type.
Background
The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water.
The existing lift check valve has the defects of large resistance and poor sealing property. The lifting check valve blocks the backflow of media in a pipeline by means of the self gravity of the valve clack and the pressure of backflow media, and the tightness of the lifting check valve cannot be guaranteed under the impact of the high-strength backflow media pressure, so that the phenomenon of internal leakage of the valve is caused; when the lifting check valve is opened, because the friction force of the contact position of the valve clack and the valve body is large, if the impact force of medium flowing is small, the friction force cannot be overcome and the valve clack is jacked up, so that the phenomenon of valve blockage is generated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the prior art stops the big and poor leakproofness of valve resistance, and the good over-and-under type high leakproofness check valve of a leakproofness that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a high leakproofness check valve of over-and-under type, includes valve body, valve gap and valve clack, fixed surface is connected with the sealing plug under the valve clack, be equipped with the cavity in the valve body, the cavity both ends all are equipped with the inside inlet opening of intercommunication valve body, the lower lateral wall of cavity passes through spring fixedly connected with bar magnet, bar magnet is connected with the lateral wall sliding seal of cavity, with the sealing plug external fixation has cup jointed the sealing washer, be equipped with the cavity in the sealing plug, be equipped with the gas pocket of intercommunication sealing washer on the lateral wall of cavity, sliding seal is connected with the magnetic slider in the cavity, bar magnet's upper end and magnetic slider heteropolar are inhaled mutually, bar magnet's lower extreme and magnetic.
Preferably, the sealing washer is rubber gasbag circle, the sealing washer surface is equipped with irregular anti-skidding line.
Preferably, the valve body is provided with an annular groove matched with the sealing ring at the corresponding position of the sealing ring.
Preferably, the cavity is vacuumized at one end far away from the air hole.
Preferably, the valve body is provided with a sealing gasket at the corresponding position of the valve clack, and the sealing gasket is a rubber gasket.
Compared with the prior art, the utility model discloses possess following advantage:
1. the utility model discloses a set up the leakproofness that sealing washer and ring channel have increased the stop valve, leak in the valve prevents.
2. The utility model discloses a set up bar magnet and gas pocket and make the sealing washer shrink when opening, reduced the frictional force between sealing plug and valve body, prevent that the valve from blockking up.
To sum up, the utility model discloses a set up the leakproofness that sealing washer and ring channel have increased the stop valve, prevent to leak in the valve, make the sealing washer shrink when opening through setting up bar magnet and gas pocket, reduced the frictional force between sealing plug and valve body, prevent that the valve from blockking up.
Drawings
Fig. 1 is a schematic structural view of a lift type high-sealing check valve according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a top view of the sealing plug in the lift type high-sealing check valve according to the present invention.
In the figure: the valve comprises a valve body 1, a valve cover 2, a valve clack 3, a cavity 4, a water inlet hole 5, a sealing washer 6, a spring 7, a bar magnet 8, a sealing plug 9, an annular groove 10, a sealing washer 11, a cavity 12, an air hole 13 and a magnetic slider 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a lifting type high-sealing check valve comprises a valve body 1, a valve cover 2 and a valve flap 3, wherein the valve body 1 is provided with an annular gasket 6 at a corresponding position of the valve flap 3, the annular gasket 6 is a rubber annular gasket, a sealing plug 9 is fixedly connected to the lower surface of the valve flap 3, a cavity 4 is arranged in the valve body 1, both ends of the cavity 4 are provided with water inlet holes 5 communicated with the interior of the valve body 1, the lower side wall of the cavity 4 is fixedly connected with a bar-shaped magnet 8 through a spring 7, so that the friction force between the sealing plug and the valve body is reduced, the valve is prevented from being blocked, the bar-shaped sealing plug magnet 8 is in sliding sealing connection with the side wall of the cavity 4, a sealing ring 11 is fixedly sleeved outside the sealing ring 9, the sealing ring 11 is a rubber air bag ring, the outer surface of the sealing ring 11 is provided with irregular anti, increased the leakproofness of stop valve, prevent to leak in the valve, be equipped with cavity 12 in the sealing plug 9, be equipped with the gas pocket 13 of intercommunication sealing washer 11 on the lateral wall of cavity 12, sliding seal is connected with magnetic slide 14 in cavity 12, it needs to notice, fixedly connected with stopper 10 on the cavity 12 lateral wall, bar magnet 8's upper end and 14 heteropolarities of magnetic slide attract each other, bar magnet 8's lower extreme and 14 homopolarities of magnetic slide repel each other, it is required to explain, when spring 7 is in natural state, bar magnet 8 and 14 heteropolarities of magnetic slide attract each other.
The utility model discloses its functional principle is explained to following mode of operation of accessible: when the utility model is used, when the medium pressure of the water inlet is greater than the pressure of the return port, the bar magnet 8 moves upwards, the heteropolar attraction of the bar magnet 8 and the magnetic slider 10 is realized, then the magnetic slider 10 moves towards the direction far away from the air hole 13, the medium in the sealing ring 11 is pumped into the cavity 12, the sealing ring 11 contracts, the friction force between the sealing ring 11 and the valve body 1 is reduced, and the valve is prevented from being blocked; when backward flow mouth medium pressure is greater than the water inlet, bar magnet 8 moves down, and bar magnet 8 repels with magnetic slider 10 homopolar this moment, promotes the position that is close to gas pocket 13 with magnetism stopper 14 then, and the medium in the cavity 12 is impressed in sealing washer 11, and then sealing washer 11 inflation has increased the leakproofness of stop valve, prevents to leak in the valve.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a high leakproofness check valve of over-and-under type, includes valve body (1), valve gap (2) and valve clack (3), its characterized in that, valve clack (3) lower fixed surface is connected with sealing plug (9), be equipped with cavity (4) in valve body (1), cavity (4) both ends all are equipped with inlet opening (5) inside intercommunication valve body (1), the lower lateral wall of cavity (4) is through spring (7) fixedly connected with bar magnet (8), bar magnet (8) and the lateral wall sliding seal of cavity (4) are connected, with sealing plug (9) outer fixed cover has been connected with sealing washer (11), be equipped with cavity (12) in cavity (9), be equipped with gas pocket (13) that communicate sealing washer (11) on the lateral wall of cavity (12), sliding seal is connected with magnetic slider (14) in cavity (12), the upper end and the heteropolar looks of bar magnet (8) are inhaled, the lower end of the bar magnet (8) and the magnetic slide block (14) have the same poles which repel each other.
2. The lift type high-sealing check valve as claimed in claim 1, wherein the sealing ring (11) is a rubber air bag ring, and the outer surface of the sealing ring (11) is provided with irregular anti-skid lines.
3. The lift type high-sealability check valve of claim 1 wherein the valve body (1) is provided with an annular groove (10) matching with the seal ring (11) at the corresponding position of the seal ring (11).
4. The lift type high-sealing check valve according to claim 1, wherein the chamber (12) is vacuumized at an end away from the air hole (13).
5. The lift type high-sealability check valve of claim 1, wherein the valve body (1) is provided with a ring gasket (6) at the corresponding position of the valve flap (3), and the ring gasket (6) is a rubber ring gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920337303.0U CN209839248U (en) | 2019-03-18 | 2019-03-18 | Lifting type check valve with high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920337303.0U CN209839248U (en) | 2019-03-18 | 2019-03-18 | Lifting type check valve with high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209839248U true CN209839248U (en) | 2019-12-24 |
Family
ID=68906790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920337303.0U Expired - Fee Related CN209839248U (en) | 2019-03-18 | 2019-03-18 | Lifting type check valve with high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209839248U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418035A (en) * | 2021-08-25 | 2021-09-21 | 南通欣昌减震器有限公司 | Anti-blocking low-resistance check valve |
| CN115388614A (en) * | 2022-08-26 | 2022-11-25 | 新疆天澳牧业有限公司 | Milk pre-refrigeration equipment and pre-refrigeration method thereof |
-
2019
- 2019-03-18 CN CN201920337303.0U patent/CN209839248U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418035A (en) * | 2021-08-25 | 2021-09-21 | 南通欣昌减震器有限公司 | Anti-blocking low-resistance check valve |
| CN113418035B (en) * | 2021-08-25 | 2021-11-16 | 南通欣昌减震器有限公司 | Anti-blocking low-resistance check valve |
| CN115388614A (en) * | 2022-08-26 | 2022-11-25 | 新疆天澳牧业有限公司 | Milk pre-refrigeration equipment and pre-refrigeration method thereof |
| CN115388614B (en) * | 2022-08-26 | 2024-03-22 | 新疆天澳牧业有限公司 | Milk pre-refrigerating equipment and pre-refrigerating method thereof |
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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 |
Granted publication date: 20191224 Termination date: 20210318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |