CN217927167U - Stop valve - Google Patents
Stop valve Download PDFInfo
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- CN217927167U CN217927167U CN202221887407.7U CN202221887407U CN217927167U CN 217927167 U CN217927167 U CN 217927167U CN 202221887407 U CN202221887407 U CN 202221887407U CN 217927167 U CN217927167 U CN 217927167U
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- valve
- sealing cover
- cover
- valve rod
- core seat
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- 238000007789 sealing Methods 0.000 claims abstract description 85
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of pipeline valves, and provides a stop valve, which comprises a valve rod, a sealing cover, a valve body and a valve core seat; the sealing cover is arranged in the valve body and is provided with a connecting groove, one end of the valve rod extends into the sealing cover through the connecting groove and is in threaded connection with the inner wall of the sealing cover, and the other end of the valve rod is positioned outside the sealing cover and is connected with a hand wheel; the valve core seat is in threaded connection with the inner wall of the upper part of the valve body; the valve core seat is provided with openings penetrating through two ends of the valve core seat, and the valve rod penetrates through the openings and is in threaded connection with the inner wall of the valve core seat; a valve port is arranged in the valve body; an elastic gasket is arranged between the end part of the valve rod extending into the sealing cover and the bottom of the sealing cover. The utility model discloses a set up the spring washer in sealed lid, solved valve rod and sealed lid because the too big and lock of rigidity contact frictional force is dead and lead to unable rotatory hand wheel together, lead to the problem that the stop valve can't carry out normal switch again.
Description
Technical Field
The utility model relates to a pipeline valve technical field, more specifically relates to a stop valve.
Background
At present, the existing stop valve generally comprises a valve body, a valve rod, a valve clack and other structures, and the valve rod and the valve clack move up and down in the valve body to open or close a valve port.
The existing stop valve comprises a valve body, a valve rod, a valve cover, a pressing cap and a valve plug, wherein an inlet channel and an outlet channel are arranged in the valve body, the inner wall of the inlet channel is provided with a first flow limiting block in an L shape, the inner wall of the outlet channel is provided with a second flow limiting block in an L shape, a flow limiting device is further arranged in the valve body, the positions, close to a connector, of the first flow limiting block and the second flow limiting block are provided with sealing grooves, sealing rings are arranged in the sealing grooves, and the sealing rings can be abutted against the side walls of the connector.
However, above-mentioned stop valve is opening the in-process, because the unable suggestion sign that provides of the full open mode of stop valve, the user can continue rotatory hand wheel after the stop valve is full open, because rigidity contact frictional force leads to valve rod and valve plug locking even the lock back dead greatly, when the stop valve is rotatory closed again, because the moment of torsion is great, lead to valve rod and valve plug because rigidity contact frictional force is too big and the lock is dead and together and lead to unable rotatory hand wheel, lead to the problem that the stop valve can't carry out normal switch again.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a valve rod and the valve plug of overcoming current stop valve existence lead to unable rotatory hand wheel because the too big and lock of rigid contact frictional force is dead together, lead to the problem that the stop valve can't carry out normal switch again, provide a stop valve.
In order to solve the technical problem, the technical scheme of the utility model as follows:
the utility model provides a stop valve, which comprises a valve rod, a sealing cover, a valve body and a valve core seat, wherein the sealing cover is arranged in the valve body, the sealing cover is provided with a connecting groove, one end of the valve rod extends into the sealing cover through the connecting groove and is in threaded connection with the inner wall of the sealing cover, and the other end of the valve rod is positioned outside the sealing cover and is connected with a hand wheel; the valve core seat is in threaded connection with the inner wall of the upper part of the valve body; the valve core seat is provided with openings penetrating through two ends of the valve core seat, and the valve rod is arranged in the openings in a penetrating manner and is in threaded connection with the inner wall of the valve core seat; the valve body is internally provided with a valve port, the valve rod drives the sealing cover to move in a direction close to or far away from the valve port so as to realize the closing and opening of the valve port, and the valve rod and the sealing cover can move relatively; an elastic gasket is arranged between the end part of the valve rod extending into the sealing cover and the bottom of the sealing cover.
In the technical scheme, the valve rod, the valve core seat and the sealing cover are connected and assembled to form the valve core of the stop valve. When the stop valve is assembled, the valve core of the stop valve is firstly installed in the valve body 3, and then the handle wheel 4 is installed at the top of the valve rod 1, so that the stop valve is installed. The rotary hand wheel drives the valve rod to rotate, and the valve rod drives the sealing cover in threaded connection with the valve rod to transmit, so that the sealing cover can be lifted up and down. When the sealing cover moves upwards, the lower end face of the sealing cover is far away from the upper end face of the valve port of the valve body and is separated from the sealing cover, so that the valve port is opened; when the sealing cover moves downwards until the lower end face of the sealing cover extrudes the upper end face of the valve port of the valve body, the valve port is closed.
When the hand wheel is rotated anticlockwise, the sealing cover can relatively move upwards along the valve rod, and the valve rod relatively moves downwards. When the lower terminal surface of valve rod and the up end contact of elastic gasket, continue anticlockwise rotation hand wheel this moment, the lower terminal surface of valve rod will extrude the elastic gasket, and when the elastic gasket was compressed, the revolving force of hand wheel can be bigger and bigger, reminds the user to stop anticlockwise rotation hand wheel in other words. Clockwise rotation hand wheel this moment again, just can easily rotate the hand wheel, make sealed lid move down, solved valve rod and sealed lid because the too big and lock of rigid contact frictional force is dead and lead to unable rotatory hand wheel together, lead to the problem that the stop valve can't carry out normal switch again.
As a preferred technical scheme, the outer wall of the valve rod is provided with a circle of positioning ribs, and the positioning ribs are positioned in the valve core seat.
As a preferable technical scheme, the sealing cover comprises a cover body and a cover plate; the cover body is connected with the cover plate through a connecting piece; the connecting groove is arranged in the cover body.
Preferably, the cover is a cylindrical cover.
As a preferred technical scheme, the cover plate is a circular cover plate.
Preferably, a blocking edge is arranged on the inner wall of the cover body, and the elastic gasket is arranged between the blocking edge and the end part of the valve rod extending into the sealing cover.
As a preferable technical scheme, a sealing layer is arranged on the surface of the cover plate.
Preferably, the connecting member includes a bolt.
Preferably, the elastic washer includes a rubber washer.
As a preferable technical scheme, the Shore hardness of the rubber gasket is 60-70 degrees.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is: the utility model discloses a set up the spring washer in sealed lid, when sealed lid along the relative ascending removal of valve rod, the lower terminal surface of valve rod and the up end of spring washer when contacting, the lower terminal surface extrusion spring washer of valve rod, spring washer is compressed this moment, and spring washer can produce certain elasticity, and the revolving force of hand wheel can be bigger and bigger, reminds the user in other words to stop counter-clockwise turning hand wheel. Clockwise rotation hand wheel this moment again, just can easily rotate the hand wheel, make sealed lid move down, solved valve rod and sealed lid because the too big and lock of rigid contact frictional force is dead and lead to unable rotatory hand wheel together, lead to the problem that the stop valve can't carry out normal switch again.
Drawings
Fig. 1 is a three-dimensional split view of the present invention.
Fig. 2 is a three-dimensional split view ii of the present invention.
Fig. 3 is a cross-sectional view i of the present invention.
Fig. 4 is a cross-sectional view ii of the present invention.
The valve comprises a valve rod 1, a positioning rib 101, a sealing cover 2, a cover 201, a cover plate 202, a valve body 3, a hand wheel 4, a valve core seat 5, a valve port 6 and an elastic gasket 7.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The manner in which the following exemplary embodiments are described does not represent all manner of consistency with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, "front," "back," "lower," and/or "upper," and the like are for convenience of description, and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein in the description of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.
The embodiments of the present application will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
The technical solution of the present invention is further described with reference to the accompanying drawings and embodiments.
Example 1
Referring to fig. 1 to 4, in the present embodiment, a stop valve is provided, including a valve rod 1, a sealing cover 2, a valve body 3, and a valve core seat 5, where the sealing cover 2 is disposed in the valve body 3, the sealing cover 2 is provided with a connecting groove, one end of the valve rod 1 extends into the sealing cover 2 through the connecting groove and is in threaded connection with an inner wall of the sealing cover 2, and the other end of the valve rod 1 is located outside the sealing cover 2 and is connected with a hand wheel 4; the valve core seat 5 is in threaded connection with the inner wall of the upper part of the valve body 3; the valve core seat 5 is provided with openings penetrating through two ends of the valve core seat, and the valve rod 1 is arranged in the openings in a penetrating manner and is in threaded connection with the inner wall of the valve core seat 5; a valve port 6 is arranged in the valve body 3, the valve rod 1 drives the sealing cover 2 to move in a direction close to or far away from the valve port 6 so as to close and open the valve port 6, and the valve rod 1 and the sealing cover 2 can move relatively; an elastic gasket 7 is arranged between the end part of the valve rod 1 extending into the sealing cover 2 and the bottom of the sealing cover 2.
In the specific implementation process, the valve rod 1, the valve core seat 5 and the sealing cover 2 are connected and assembled to form the valve core of the stop valve. When the stop valve is assembled, the valve core of the stop valve is firstly installed in the valve body 3, and then the handle wheel 4 is installed at the top of the valve rod 1, so that the stop valve is installed. The rotary hand wheel 4 drives the valve rod 1 to rotate, and the valve rod 1 drives the sealing cover 2 in threaded connection with the valve rod 1 to transmit, so that the sealing cover 2 can be lifted up and down. When the sealing cover 2 moves upwards, the lower end surface of the sealing cover 2 is far away from the upper end surface of the valve port 6 of the valve body 3, so that the valve port 6 is opened; when the sealing cover 2 moves downwards until the lower end face of the sealing cover 2 presses the upper end face of the valve port 6 of the valve body 3, the valve port 6 is closed.
When the hand wheel 4 is rotated anticlockwise, the sealing cap 2 moves up along the valve stem 1 and the valve stem 1 moves down relatively, as shown in figure 3. When the lower terminal surface of valve rod 1 and the up end contact of elastic washer 7, continue anticlockwise rotation hand wheel 4 this moment, elastic washer 7 will be extruded to the lower terminal surface of valve rod 1, and when elastic washer 7 was compressed, elastic washer 7 can produce certain elasticity, and the revolving force of hand wheel 4 can be bigger and bigger, is equivalent to reminding the user to stop anticlockwise rotation hand wheel 4. As shown in fig. 4, clockwise rotation hand wheel 4 again at this moment, just can easily rotate hand wheel 4, make sealed lid 2 move down, solved on the valve rod 1 with sealed lid 2 because the too big just lock together of rigid contact frictional force and lead to unable rotatory hand wheel 4, lead to the problem that the stop valve can't carry out normal switch again.
Example 2
This embodiment is an improvement of the shut-off valve proposed in embodiment 1.
In this embodiment, the outer wall of the valve rod 1 is provided with a circle of positioning ribs 101, and the positioning ribs 101 are located in the valve core seat 5.
In this embodiment, the sealing cover 2 includes a cover body 201 and a cover plate 202; the cover body 201 is connected with the cover plate 202 through a connecting piece; the connecting groove is formed in the cover body 201, one end of the valve rod 1 extends into the cover body 201, and the other end of the valve rod 1 is located outside the cover body 201; a blocking edge is arranged on the inner wall of the cover body 201, and the elastic gasket 7 is arranged between the blocking edge and the end part of the valve rod 1 extending into the sealing cover 2; the valve rod 1 drives the cover plate 202 to move in a direction close to or away from the valve port 6, so as to close and open the valve port 6.
In this embodiment, the cover 201 is a cylindrical cover.
In this embodiment, the cover plate 202 is a circular cover plate.
In this embodiment, the surface of the cover plate 202 is provided with a sealing layer.
In this embodiment, the connecting member includes a bolt
In the specific implementation process, the valve rod 1, the valve core seat 5 and the sealing cover 2 are connected and assembled to form the valve core of the stop valve. When the stop valve is assembled, the valve core of the stop valve is firstly installed in the valve body 3, and then the handle wheel 4 is installed at the top of the valve rod 1, so that the stop valve is installed. At the moment, the hand wheel 4 is rotated to drive the valve rod 1 to rotate, and the valve rod 1 drives the sealing cover 2 in threaded connection with the valve rod 1 to transmit, so that the sealing cover 2 is lifted up and down. When the sealing cover 2 moves upwards, the lower end surface of the cover plate 202 of the sealing cover 2 is far away from the upper end surface of the valve port 6 of the valve body 3 and is separated from the upper end surface, so that the valve port 6 is opened; when the sealing cover 2 moves downward until the lower end surface of the cover plate 202 of the sealing cover 2 presses the upper end surface of the valve port 6 of the valve body 3, the closing of the valve port 6 is achieved.
When the hand wheel 4 is rotated anticlockwise, the sealing cap 2 moves up along the valve stem 1 and the valve stem 1 moves down relatively, as shown in figure 3. When the lower terminal surface of valve rod 1 and the up end contact of elastic washer 7, the up end of the lid 201 of sealed lid 2 still has a buffer distance H1 of at least 2mm from the position of location muscle 101, continue anticlockwise rotation hand wheel 4 this moment, the lower terminal surface and the flange of valve rod 1 will extrude elastic washer 7, when elastic washer 7 is compressed, elastic washer 7 can produce certain elasticity, the revolving force of hand wheel 4 can be bigger and bigger, be equivalent to reminding the user to stop anticlockwise rotation hand wheel 4, and there is buffer distance between the up end of the lid 201 of sealed lid 2 and the location muscle 101 this moment, the up end of the lid 201 of sealed lid 2 promptly can not contact location muscle 101. As shown in fig. 4, the hand wheel 4 is rotated clockwise at this time, so that the hand wheel 4 can be easily rotated, the sealing cover 2 is moved downwards, and the problem that the stop valve cannot be normally opened and closed due to the fact that the hand wheel 4 cannot be rotated because the sealing cover 2 and the valve rod 1 are locked together due to too large rigid contact friction force is solved.
Example 3
This embodiment is an improvement over the shut-off valve set forth in embodiment 2.
In this embodiment, the elastic washer 7 includes a rubber washer.
In this embodiment, the shore hardness of the rubber gasket is 60 degrees to 70 degrees.
In the specific implementation process, a cylindrical rubber gasket is arranged in the sealing cover 2, the shore hardness of the rubber gasket is about 60-70 degrees, the rubber has elasticity and is soft in hardness, so the rubber gasket can form an elastic buffer area in the sealing cover 2, when the upper end face of the rubber gasket is in contact with the lower end face of the valve rod 1, the upper end face of the sealing cover 2 is ensured not to touch the positioning rib 101 of the valve rod 1, and the distance H1 from the upper end face of the sealing cover 2 to the positioning rib 101 is at least 2mm, the 2mm distance is a buffer distance, at this time, the hand wheel 4 is continuously rotated anticlockwise, the lower end face and the blocking edge of the valve rod 1 can extrude the rubber gasket, the rubber gasket is compressed, the rubber gasket can generate certain elastic force, at this time, the rotating force is larger and larger until the rotation is difficult, and the upper end face of the sealing cover 2 is ensured not to be in contact with the positioning rib 101 of the valve rod 1, at this time, when the hand wheel 4 is rotated clockwise, the hand wheel 4 can be easily rotated, and the problem that the hand wheel 4 cannot be rotated due to the fact that the sealing cover 2 and the sealing cover are locked together due to the large friction force can be in the rigid contact can be solved.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A stop valve comprises a valve rod (1), a sealing cover (2), a valve body (3) and a valve core seat (5), and is characterized in that,
the sealing cover (2) is arranged in the valve body (3), the sealing cover (2) is provided with a connecting groove, one end of the valve rod (1) extends into the sealing cover (2) through the connecting groove to be in threaded connection with the inner wall of the sealing cover (2), and the other end of the valve rod (1) is positioned outside the sealing cover (2) and is connected with a hand wheel (4);
the valve core seat (5) is in threaded connection with the inner wall of the upper part of the valve body (3); the valve core seat (5) is provided with openings penetrating through two ends of the valve core seat, and the valve rod (1) is arranged in the openings in a penetrating manner and is in threaded connection with the inner wall of the valve core seat (5);
a valve port (6) is arranged in the valve body (3), the valve rod (1) drives the sealing cover (2) to move in a direction close to or far away from the valve port (6) so as to realize the closing and opening of the valve port (6), and the valve rod (1) and the sealing cover (2) can move relatively;
an elastic gasket (7) is arranged between the end part of the valve rod (1) extending into the sealing cover (2) and the bottom of the sealing cover (2).
2. A stop valve according to claim 1, wherein the outer wall of the valve stem (1) is provided with a circle of positioning ribs (101), and the positioning ribs (101) are located in the valve core seat (5).
3. A stop valve according to claim 1, wherein the sealing cover (2) comprises a cover body (201) and a cover plate (202); the cover body (201) is connected with the cover plate (202) through a connecting piece; the connecting groove is arranged in the cover body (201).
4. A stop valve according to claim 3, characterized in that the inner wall of the cover (201) is provided with a stop edge, the elastic gasket (7) being arranged between the stop edge and the end of the stem (1) projecting into the sealing cover (2).
5. A stop valve according to claim 3, wherein the cover (201) is a cylindrical cover.
6. A shut-off valve according to claim 3, characterised in that the cover plate (202) is a circular cover plate.
7. A shut-off valve according to claim 3, characterised in that the surface of the cover plate (202) is provided with a sealing layer.
8. The shut-off valve of claim 3, wherein the connector comprises a bolt.
9. A stop valve according to any one of claims 1 to 8, wherein the resilient washer (7) comprises a rubber washer.
10. The shut-off valve of claim 9, wherein the rubber gasket has a shore hardness of 60-70 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221887407.7U CN217927167U (en) | 2022-07-20 | 2022-07-20 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221887407.7U CN217927167U (en) | 2022-07-20 | 2022-07-20 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217927167U true CN217927167U (en) | 2022-11-29 |
Family
ID=84190203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221887407.7U Active CN217927167U (en) | 2022-07-20 | 2022-07-20 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217927167U (en) |
-
2022
- 2022-07-20 CN CN202221887407.7U patent/CN217927167U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240505 Address after: 233121 Fengning Modern Industrial Park Area, Economic Development Zone, Fengyang County, Chuzhou City, Anhui Province Patentee after: Anhui Liansu Technology Industrial Co.,Ltd. Country or region after: China Address before: Shunde Longzhou road Longjiang 528318 Guangdong Liansu industrial village in Foshan Province Patentee before: GUANGDONG LIANSU TECHNOLOGY INDUSTRIAL Co.,Ltd. Country or region before: China |