CN210397740U - Corrugated pipe stop valve with high sealing performance - Google Patents
Corrugated pipe stop valve with high sealing performance Download PDFInfo
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- CN210397740U CN210397740U CN201921305403.1U CN201921305403U CN210397740U CN 210397740 U CN210397740 U CN 210397740U CN 201921305403 U CN201921305403 U CN 201921305403U CN 210397740 U CN210397740 U CN 210397740U
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- valve
- valve rod
- threaded connection
- corrugated pipe
- rod
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Abstract
The utility model discloses a bellows stop valve of high leakproofness, the water-cooled double-layer valve comprises a valve body, be equipped with S type pore in the valve body, the installing port is seted up to S type pore top lateral wall, and the mouth edge department of installing port can be dismantled and be connected with the valve gap, and it has the valve rod to peg graft on the valve gap. The utility model discloses simple structure, it rotates to rotate the hand wheel and drive the valve rod, the valve rod moves up, S type pore way inner wall separation in drive valve clack and the valve body, realize opening of valve, the valve closure then can be realized to the reversal hand wheel, open freely, at this in-process, external screw thread cover and valve gap threaded connection, internal thread cover and valve rod threaded connection, be equipped with the bellows between external screw thread cover and the internal thread cover, realize thread sealing, avoid appearing the seepage in the junction of valve rod and valve gap, higher leakproofness has, and through setting up threaded connection, the dismouting is comparatively convenient, convenient replacement is maintained.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a bellows stop valve of high leakproofness.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When a medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod bending can occur; the traditional valve is generally sealed by a sealing ring, has common sealing effect, and is easy to leak, so that process fluid erodes a valve rod.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an in order to solve the shortcoming that exists among the prior art, and the bellows stop valve of a high leakproofness that proposes, the utility model discloses inside bellows structure that adopts, the bellows of stainless steel adopt screw thread seal structure to prevent process fluid etching valve rod.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a bellows stop valve of high leakproofness, includes the valve body, be equipped with S type pore in the valve body, the installing port is seted up to S type pore top lateral wall, and the mouth edge department of installing port can be dismantled and be connected with the valve gap, and it has the valve rod to peg graft on the valve gap, is equipped with the sealing device of convenient dismantlement on the valve rod, and the valve clack is installed to the lower extreme of valve rod, the upper end of valve rod and the female threaded connection of valve at the valve gap upper end, and the hand wheel is.
Preferably, the sealing device convenient to disassemble comprises a corrugated pipe sleeved on the valve rod, an external thread sleeve is welded at the upper end of the corrugated pipe, an internal thread sleeve is welded at the lower end of the corrugated pipe, the external thread sleeve is in threaded connection with the valve cover, and the internal thread sleeve is in threaded connection with the valve rod.
Preferably, the valve cover is connected with the valve body through a connecting bolt, and a lower sealing ring is arranged between the valve cover and the valve body.
Preferably, an upper sealing ring and a pressing sleeve are respectively sleeved on the valve rod, the upper sealing ring and the pressing sleeve are both positioned in a mounting hole formed in the valve cover, and the pressing sleeve is in threaded connection with the mounting hole.
Preferably, the valve rod is sleeved with a positioning piece, and the positioning piece is connected with the valve rod through a connecting screw.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, it rotates to rotate the hand wheel and drive the valve rod, the valve rod moves up, S type pore way inner wall separation in drive valve clack and the valve body, realize opening of valve, the valve closure then can be realized to the reversal hand wheel, open freely, at this in-process, external screw thread cover and valve gap threaded connection, internal thread cover and valve rod threaded connection, be equipped with the bellows between external screw thread cover and the internal thread cover, realize thread sealing, avoid appearing the seepage in the junction of valve rod and valve gap, higher leakproofness has, and through setting up threaded connection, the dismouting is comparatively convenient, convenient replacement is maintained.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the connection of the valve stem to the bellows.
In the figure: the valve comprises a valve body 1, a valve clack 2, an internal thread sleeve 3, a corrugated pipe 4, a valve rod 5, a valve cover 6, an upper sealing ring 7, a pressing sleeve 8, a positioning sheet 9, a valve nut 10, a hand wheel 11, a connecting bolt 12, a lower sealing ring 13 and an external thread sleeve 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.
Referring to fig. 1-2, a bellows stop valve of high leakproofness, includes valve body 1, is equipped with S type pore in the valve body 1, and the installing port is seted up to S type pore top lateral wall, and the mouth edge department of installing port can be dismantled and be connected with valve gap 6, and it has valve rod 5 to peg graft on the valve gap 6, is equipped with the sealing device of convenient dismantlement on the valve rod 5, and valve clack 2 is installed to the lower extreme of valve rod 5, and the upper end of valve rod 5 and the valve nut 10 threaded connection of connection in the upper end of valve gap 6, and hand wheel 11 is installed.
Convenient sealing device who dismantles has external screw thread cover 14 including cup jointing bellows 4 on valve rod 5, and the upper end welding of bellows 4 has internal thread cover 3, and external screw thread cover 14 and 6 threaded connection of valve gap, internal thread cover 3 and 5 threaded connection of valve rod conveniently dismantle and replace.
The valve rod 5 is sleeved with the positioning piece 9, the positioning piece 9 is connected with the valve rod 5 through a connecting screw, and the valve rod 5 is limited and prevented from being excessively moved to cause damage.
In the present case, it rotates to rotate hand wheel 11 and drive valve rod 5, valve rod 5 moves up, drive the separation of S type pore inner wall in valve clack 2 and the valve body 1, realize opening of valve, the valve closure then can be realized to reversal hand wheel 11, open freely, at this in-process, external screw thread cover 14 and 6 threaded connection of valve gap, internal thread cover 3 and 5 threaded connection of valve rod, be equipped with bellows 4 between external screw thread cover 14 and the internal thread cover 3, realize thread seal, avoid appearing the seepage in the junction of valve rod 5 and valve gap 6, higher leakproofness has, and through setting up threaded connection, the dismouting is comparatively convenient, convenient replacement is maintained.
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 bellows stop valve of high leakproofness, includes valve body (1), a serial communication port, be equipped with S type pore in valve body (1), the installing port is seted up to S type pore top lateral wall, the mouth of installing port can be dismantled along the department and be connected with valve gap (6), it has valve rod (5) to peg graft on valve gap (6), be equipped with the sealing device of convenient dismantlement on valve rod (5), valve clack (2) are installed to the lower extreme of valve rod (5), the upper end and the female (10) threaded connection of valve of connection in valve gap (6) upper end of valve rod (5), and hand wheel (11) are installed to the tip of valve rod (5).
2. The high-sealing-performance corrugated pipe stop valve according to claim 1, wherein the sealing device convenient to disassemble comprises a corrugated pipe (4) sleeved on the valve rod (5), an external thread sleeve (14) is welded at the upper end of the corrugated pipe (4), an internal thread sleeve (3) is welded at the lower end of the corrugated pipe (4), the external thread sleeve (14) is in threaded connection with the valve cover (6), and the internal thread sleeve (3) is in threaded connection with the valve rod (5).
3. A high-tightness bellows stop valve according to claim 1, characterized in that the valve cover (6) is connected with the valve body (1) through a connecting bolt (12), and a lower sealing ring (13) is arranged between the valve cover (6) and the valve body (1).
4. The high-sealing-performance corrugated pipe stop valve according to claim 1 or 2, characterized in that an upper sealing ring (7) and a pressing sleeve (8) are respectively sleeved on the valve rod (5), the upper sealing ring (7) and the pressing sleeve (8) are both positioned in a mounting hole formed in the valve cover (6), and the pressing sleeve (8) is in threaded connection with the mounting hole.
5. The high-sealing-performance corrugated pipe stop valve according to claim 1, wherein a positioning sheet (9) is sleeved on the valve rod (5), and the positioning sheet (9) is connected with the valve rod (5) through a connecting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921305403.1U CN210397740U (en) | 2019-08-13 | 2019-08-13 | Corrugated pipe stop valve with high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921305403.1U CN210397740U (en) | 2019-08-13 | 2019-08-13 | Corrugated pipe stop valve with high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397740U true CN210397740U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921305403.1U Active CN210397740U (en) | 2019-08-13 | 2019-08-13 | Corrugated pipe stop valve with high sealing performance |
Country Status (1)
| Country | Link |
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| CN (1) | CN210397740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682522A (en) * | 2020-12-17 | 2021-04-20 | 合肥宁泰真空设备有限公司 | Manual regulation formula valve |
| CN113790305A (en) * | 2021-09-27 | 2021-12-14 | 江苏圣泰阀门有限公司 | Corrugated pipe sealing device |
-
2019
- 2019-08-13 CN CN201921305403.1U patent/CN210397740U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682522A (en) * | 2020-12-17 | 2021-04-20 | 合肥宁泰真空设备有限公司 | Manual regulation formula valve |
| CN113790305A (en) * | 2021-09-27 | 2021-12-14 | 江苏圣泰阀门有限公司 | Corrugated pipe sealing device |
| CN113790305B (en) * | 2021-09-27 | 2023-08-04 | 江苏圣泰阀门有限公司 | Bellows sealing device |
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