CN218177945U - Sealing structure of valve rod - Google Patents
Sealing structure of valve rod Download PDFInfo
- Publication number
- CN218177945U CN218177945U CN202222801391.XU CN202222801391U CN218177945U CN 218177945 U CN218177945 U CN 218177945U CN 202222801391 U CN202222801391 U CN 202222801391U CN 218177945 U CN218177945 U CN 218177945U
- Authority
- CN
- China
- Prior art keywords
- valve
- wall
- valve rod
- rod
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model belongs to the technical field of the valve seal production technique and specifically relates to a seal structure of valve rod, the pressure relief valve comprises a valve cover, the inner wall of valve gap is equipped with sealing mechanism, sealing mechanism includes first spring, the top of first spring is laminated with the inner wall of valve gap mutually, the bottom of first spring is laminated with the top of packing element mutually, the outer wall of packing element and the inner wall slip joint of valve gap, the adjacent threaded rod in the outside of first spring, the outer wall of threaded rod meets with the inner wall screw thread of valve gap, the inner wall of packing element is laminated with the outer wall of valve rod mutually, the outer wall of valve rod links to each other with the inner wall rotation of valve gap. Through passing the valve rod with the valve gap, the rubber sleeve cup joints with the valve rod, and the rubber sleeve seals valve rod and valve body junction, and rubber sleeve and valve rod area of connection is great, and slight wearing and tearing can not cause the influence to the rubber sleeve, and the medium can not outwards ooze by valve rod and rubber sleeve junction, and then has prolonged the life of valve.
Description
Technical Field
The utility model relates to a valve seal technical field specifically is a seal structure of valve rod.
Background
Valves are fittings for opening and closing pipes, controlling flow direction, regulating and controlling parameters of the transport medium, and require sealing between the valve and the valve stem when in use.
Present valve is in the use, the junction of valve and valve rod needs to be sealed, the mode that cup joints between rubber circle and the valve rod is usually adopted to seal, rubber circle is fixed with the valve, there is the outside outflow of medium between valve rod and the valve when preventing the valve rod rotation, and can take place slight wearing and tearing when rubber circle inboard rotates for a long time with the valve rod, this kind of slight wearing and tearing can lead to appearing the gap between rubber circle and the valve rod down accumulated for a long time, thereby make the medium outwards ooze by the gap department of valve rod and rubber circle, and then reduced the life of valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the sealing rubber circle long-term wearing and tearing between valve and the valve rod and can appearing the gap, rotating the valve rod medium and having the gap outwards to ooze, and then reduced the life problem of valve, and the seal structure of a valve rod who proposes.
In order to achieve the above object, the utility model provides a following technical scheme:
the design is a sealing structure of a valve rod, which comprises a valve cover, wherein the inner wall of the valve cover is provided with a sealing mechanism, the sealing mechanism comprises a first spring, the top of the first spring is attached to the inner wall of the valve cover, the bottom of the first spring is attached to the top of a rubber cylinder, the outer wall of the rubber cylinder is connected with the inner wall of the valve cover in a sliding mode, an adjacent threaded rod is arranged on the outer side of the first spring, the outer wall of the threaded rod is connected with the inner wall of the valve cover in a threaded mode, the inner wall of the rubber cylinder is attached to the outer wall of the valve rod, and the outer wall of the valve rod is connected with the inner wall of the valve cover in a rotating mode.
Preferably, the valve body is attached to the bottom of the valve cover, and the outer wall of the threaded rod is in threaded connection with the inner wall of the valve body.
Preferably, the bottom of the rubber cylinder is attached to the inner wall of the valve body.
Preferably, the bottom of the valve rod is fixedly connected with the top of the valve plate.
Preferably, the handle is sleeved on the outer wall of the valve rod.
The utility model provides a sealing structure of valve rod, beneficial effect lies in: through passing the valve rod with the valve gap, the rubber sleeve cup joints with the valve rod, and the rubber sleeve seals valve rod and valve body junction, and rubber sleeve and valve rod area of connection is great, and slight wearing and tearing can not cause the influence to the rubber sleeve, and the medium can not outwards ooze by valve rod and rubber sleeve junction, and then has prolonged the life of valve.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the connection structure of the first spring, the rubber cylinder and the threaded rod in FIG. 1;
FIG. 3 is a schematic view of the connection structure of portion A in FIG. 2;
fig. 4 is a schematic view of a connection structure of a portion B in fig. 1.
In the figure: 1. valve gap, 2, sealing mechanism, 201, first spring, 202, rubber cylinder, 203, threaded rod, 204, valve rod, 2a1, second spring, 2a2, slider, 3, valve plate, 4, handle, 5, valve body.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
referring to figures 1-4: in this embodiment 1, a sealing structure of a valve and a valve rod includes a valve cover 1, a sealing mechanism 2 is disposed on an inner wall of the valve cover 1, the sealing mechanism 2 inside the valve cover 1 seals between a valve 5 and a valve rod 204, the sealing mechanism 2 includes a first spring 201, a rubber cylinder 202, a threaded rod 203 and a valve rod 204, a top of the first spring 201 is attached to an inner wall of the valve cover 1, a bottom of the first spring 201 is attached to a top of the rubber cylinder 202, the first spring 201 helps the rubber cylinder 202 to reset, an outer wall of the rubber cylinder 202 is slidably clamped to an inner wall of the valve cover 1, the valve cover 1 limits the rubber cylinder 202, an outer side of the first spring 201 is adjacent to the threaded rod 203, an outer wall of the threaded rod 203 is connected to an inner wall of the valve cover 1 through a thread, the valve cover 1 limits the threaded rod 203, the inner wall of the rubber cylinder 202 is attached to an outer wall of the valve rod 204, the rubber cylinder 202 seals the valve rod 204, the outer wall of the valve rod 204 is rotatably connected to the inner wall of the valve cover 1, the valve cover 1 limits the valve cover 1, the valve cover 1 is attached to the valve cover 1, the valve body 5, the valve cover 5 is connected to the threaded rod 203, the inner wall of the valve cover 1, the valve body 3, the valve cover 3 is fixedly connected to the valve rod 204, and the valve rod 204, the valve plate 204, and the valve plate 3, the valve plate 204, the valve body 3, the valve rod 204 are fixedly connected to drive the valve plate 3, and the valve plate 204, the valve plate 3, the valve plate 204, and the valve rod 3, the valve plate 204, the valve rod 3, and the valve rod 204, and the valve plate 204;
The working principle is as follows:
the valve cover 1 penetrates through the valve rod 204, the rubber tube 202 is sleeved with the valve rod 204, the valve cover 1 is pushed to be attached to the valve body 5, the threaded rod 203 is manually driven to rotate, the valve cover 1 and the valve body 5 are fixed together by the threaded rod 203, the valve cover 1 can move downwards in the fixing process, when the rubber tube 202 is attached to the top of the valve body 5, the valve body 5 can extrude the rubber tube 202 to contract inwards, the rubber tube 202 can extrude the first spring 201 to contract inwards, after the valve cover 1 and the valve body 5 are completely sealed, the compressed spring 201 pushes the rubber tube 202 to move outwards, the rubber tube 202 seals the joint of the valve rod 204 and the valve body 5, the rubber tube 202 seals the valve cover 1 and the valve body 5, the connecting area of the rubber tube 202 and the valve rod 204 is large, slight abrasion cannot affect the rubber tube 202, media cannot seep outwards from the joint of the valve rod and the rubber tube, and the service life of the valve is prolonged.
Example 2:
referring to fig. 3, the present invention provides a technical solution: a sealing structure of a valve rod of a valve, wherein a sealing mechanism 2 can also comprise a second spring 2a1 and a sliding block 2a2, one end of the second spring 2a1 is attached to the inner wall of a handle 4, the handle 4 limits the second spring 2a1, one end of the second spring 2a1 is fixedly connected with one end of the sliding block 2a2, the second spring 2a1 helps the sliding block 2a2 to reset, the outer wall of the sliding block 202 is clamped with the inner wall of the handle 4 in a sliding mode, the handle 4 limits the sliding block 202, one end of the sliding block 202 is clamped with the outer wall of a valve rod 204, and the sliding block 202 is matched with the valve rod 204 to fix the handle 4;
2a2 of pulling slider compresses second spring 2a1, and slider 2a2 no longer to valve rod 204 joint, and handle 4 can rotate wantonly, loosens 2a2 back second spring 2a1 help slider 2a2 and resets, and slider 2a2 and valve rod 204 joint, handle 4 can drive valve rod 204 and rotate, and the valve is installed when comparatively constrictive space is inside, can not restrict the turned angle of valve rod 204.
The working principle is as follows:
handle 4 rotates the back, pulling slider 2a2 compresses second spring 2a1, slider 2a2 no longer is to valve rod 204 joint, handle 4 can rotate wantonly, adjust handle 4's position, loosen second spring 2a1 help slider 2a2 and reset behind the slider 2a2, slider 2a2 and valve rod 204 joint, handle 4 can drive valve rod 204 and rotate, the valve is installed when comparatively constrictive space is inside, can not restrict the turned angle of valve rod 204.
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (5)
1. The utility model provides a seal structure of valve stem, includes valve gap (1), its characterized in that: the inner wall of valve gap (1) is equipped with sealing mechanism (2), sealing mechanism (2) are including first spring (201), the top of first spring (201) is laminated with the inner wall of valve gap (1) mutually, the bottom of first spring (201) is laminated with the top of packing element (202) mutually, the outer wall of packing element (202) and the inner wall slip joint of valve gap (1), the adjacent threaded rod (203) in the outside of first spring (201), the outer wall of threaded rod (203) meets with the inner wall screw thread of valve gap (1), the inner wall of packing element (202) is laminated with the outer wall of valve rod (204) mutually, the outer wall of valve rod (204) rotates with the inner wall of valve gap (1) and links to each other.
2. A sealing structure of a valve stem according to claim 1, wherein: the bottom laminating of valve gap (1) has valve body (5), the outer wall of threaded rod (203) and the inner wall screw thread of valve body (5) meet.
3. A sealing structure of a valve stem according to claim 1, wherein: the bottom of the rubber cylinder (202) is attached to the inner wall of the valve body (5).
4. A sealing structure of a valve stem according to claim 1, wherein: the bottom of the valve rod (204) is fixedly connected with the top of the valve plate (3).
5. A sealing structure of a valve stem according to claim 1, wherein: the outer wall of the valve rod (204) is sleeved with a handle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222801391.XU CN218177945U (en) | 2022-10-24 | 2022-10-24 | Sealing structure of valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222801391.XU CN218177945U (en) | 2022-10-24 | 2022-10-24 | Sealing structure of valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218177945U true CN218177945U (en) | 2022-12-30 |
Family
ID=84607641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222801391.XU Active CN218177945U (en) | 2022-10-24 | 2022-10-24 | Sealing structure of valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218177945U (en) |
-
2022
- 2022-10-24 CN CN202222801391.XU patent/CN218177945U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103438228B (en) | Selfsealings centre-pivoted butterfly valve | |
| CN212429779U (en) | Stop valve with long service life | |
| CN218177945U (en) | Sealing structure of valve rod | |
| CN201944408U (en) | Special stop valve for chlorine gas | |
| CN211145372U (en) | Elastic sealing stop valve | |
| CN215059565U (en) | Bidirectional five-eccentric spherical surface hard sealing butterfly valve with floatable valve seat | |
| CN206361248U (en) | A kind of ball-valve valve rod filling pressure self sealing structure | |
| CN210196559U (en) | Novel flow control valve | |
| CN211820781U (en) | Novel multi-seal butterfly valve | |
| CN203718010U (en) | High-pressure ball valve | |
| CN203670845U (en) | Elastic self-sealing gate valve | |
| CN208858951U (en) | A kind of high leakproofness butterfly valve | |
| CN208793676U (en) | The multi-sealed gate valve of the type that baroclines | |
| CN207178725U (en) | A kind of stop valve leakage preventing mechanism for oil truck emergency cut-off | |
| CN210739401U (en) | Three-eccentric bidirectional hard seal butterfly valve | |
| CN212251234U (en) | Gate valve with adjustable sealing grade | |
| CN217558294U (en) | High-pressure plug valve for fracturing manifold | |
| CN219755394U (en) | High-temperature wear-resistant flat shearing gate valve | |
| CN217153043U (en) | Manual flat valve for petroleum drilling | |
| CN216112256U (en) | High-efficient sealed gate valve | |
| CN210830522U (en) | Two-way butterfly valve sealed firmly | |
| CN205101573U (en) | Butterfly plate area three -section circular arc seals one end flange telescopic butterfly valve | |
| CN219570870U (en) | Floating self-adjusting hard sealing butterfly valve | |
| CN219954321U (en) | Stainless steel swing check valve | |
| CN213744990U (en) | Electric flange knife type gate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |