CN216279478U - Thin type shearing valve - Google Patents
Thin type shearing valve Download PDFInfo
- Publication number
- CN216279478U CN216279478U CN202123141524.7U CN202123141524U CN216279478U CN 216279478 U CN216279478 U CN 216279478U CN 202123141524 U CN202123141524 U CN 202123141524U CN 216279478 U CN216279478 U CN 216279478U
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- Prior art keywords
- valve
- movable
- mounting hole
- jacking
- flashboard
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- 238000010008 shearing Methods 0.000 title abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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Abstract
The utility model relates to a thin shear valve. The shear valve comprises a valve body, wherein the valve body is provided with a valve cavity, a flashboard is arranged in the valve cavity, and movable valve seats are arranged on two sides of the flashboard in the valve cavity. The valve body is provided with a plurality of mounting holes corresponding to the movable valve seats, and each mounting hole is internally provided with an elastic jacking structure for jacking the corresponding movable valve seat. The valve body is provided with a mounting hole, the elastic jacking structure is arranged in the mounting hole to directly jack the movable valve seats on two sides tightly, the sealing effect between the flashboard and the movable valve seats on two sides is ensured, and the valve is suitable for liquid media with low conveying pressure. Compared with the existing valve, the valve has the advantages that the protective cover in the existing shearing valve is omitted, the structure of the valve is simplified, the size of the valve in the medium flow direction is reduced, the valve is convenient to thin and design, the use is flexible and convenient, and meanwhile, the sealing effect of the flashboard and the movable valve seats on the two sides is also guaranteed.
Description
Technical Field
The utility model relates to the field of valves, in particular to a thin shear valve.
Background
The shear valve belongs to a gate valve and is generally used in a pipeline system under severe working conditions. The existing shear valve generally comprises a valve body, wherein the valve body is provided with a valve cavity, a flashboard is arranged in the valve cavity, movable valve seats are arranged on two sides of the flashboard, a protective cover is connected to the valve body in the valve cavity and located on the outer side of the movable valve seats, and the protective cover is used for ensuring the sealing fit between the movable valve seats on the two sides and the flashboard. For applications where there is a limit to the installation space and the pressure of the fluid medium is not high, there is a need for a thin shear valve that is only greatly reduced in size in the direction of flow of the liquid as compared to the above-mentioned conventional shear valve. But the setting of the well protection casing of current shearing has increased the complexity of valve inner structure, because the protection casing is located the both sides of activity disk seat, the protection casing occupies certain space in liquid flow direction orientation, and the thickness that will increase whole valve promptly follows the ascending size of liquid flow direction orientation, can't satisfy the user demand.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a thin shear valve to solve the problem that the size of the whole valve in the flowing direction of liquid is too large to meet the requirement in the prior art.
In order to achieve the purpose, the thin shear valve adopts the following technical scheme: the utility model provides a slim shear valve, includes the valve body, and the valve body has the valve pocket, and the inside flashboard that is provided with of valve pocket, the valve pocket all is provided with movable disk seat in the both sides of flashboard, be provided with a plurality of mounting holes that correspond with each movable disk seat on the valve body, all be provided with the elasticity roof pressure structure that is used for the tight corresponding movable disk seat in top in each mounting hole.
The inner wall of the mounting hole is provided with an internal thread structure, the elastic jacking structure comprises a bolt in threaded connection with the mounting hole, a rod part of the bolt is provided with a mounting groove with an opening facing the corresponding movable valve seat, a jacking block is arranged in the mounting groove, and a spring in jacking press fit with the jacking block is arranged in the mounting groove.
The spring includes a plurality of dish springs that stack in proper order along the axis direction of mounting groove.
The top briquetting is the stepped shaft structure, and the major diameter section direction of stepped shaft structure is installed in the mounting groove and the terminal surface of major diameter section is used for the corresponding movable valve seat of roof pressure, and the minor diameter section of stepped shaft structure stretches into in the centre bore of dish spring.
The outer wall of the valve body is provided with a sunk groove corresponding to each mounting hole one by one and used for accommodating the head of the bolt.
An elastic sealing ring is arranged between the bottom of the sinking groove and the head of the bolt.
Each movable valve seat comprises a cylinder part and a flat plate part extending to one side or two sides along the moving direction of the gate plate, and the cylinder part and the flat plate part are integrally formed or welded or in threaded connection.
The utility model has the beneficial effects that: the valve body is provided with a mounting hole, the elastic jacking structure is arranged in the mounting hole to directly jack the movable valve seats on two sides tightly, the sealing effect between the flashboard and the movable valve seats on two sides is ensured, and the valve is suitable for liquid media with low conveying pressure. Compared with the existing valve, the valve has the advantages that the protective cover in the existing shearing valve is omitted, the structure of the valve is simplified, the size of the valve in the medium flow direction is reduced, the valve is convenient to thin and design, the use is flexible and convenient, and meanwhile, the sealing effect of the flashboard and the movable valve seats on the two sides is also guaranteed.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of a low profile shear valve of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural view of a second embodiment of a low profile shear valve of the present invention.
Detailed Description
The first embodiment of the thin shear valve disclosed by the utility model is shown in fig. 1-2 and comprises a valve body 1, wherein the valve body 1 is provided with a valve cavity, a gate plate 2 is arranged in the valve cavity, and movable valve seats 3 are arranged on two sides of the gate plate in the valve cavity. The valve body is provided with a plurality of mounting holes 10 corresponding to the movable valve seats, and each mounting hole 10 is internally provided with an elastic jacking structure 9 for jacking the corresponding movable valve seat 3 tightly so as to ensure the sealing effect between the movable valve seats on two sides and the gate plate. In this embodiment, the specific structure of the movable valve seat is: each movable valve seat comprises a cylinder part 4 and flat plate parts 5 extending towards two sides along the moving direction of the gate plate, and an elastic jacking structure 9 is used for jacking the flat plate parts 5 of the movable valve seats.
The inner wall of the mounting hole is provided with an internal thread structure, the elastic jacking structure comprises a bolt 11 in threaded connection with the mounting hole, a rod part of the bolt is provided with a mounting groove 12 with an opening facing to the corresponding movable valve seat, a jacking block 13 is arranged in the mounting groove, and a spring 16 in jacking press fit with the jacking block is arranged in the mounting groove. The spring adopts the dish spring group, and the dish spring group includes a plurality of dish springs that stack in proper order along the axis direction of mounting groove. The top pressing block 13 is of a stepped shaft structure, a large-diameter section 14 of the stepped shaft structure is installed in the installation groove in a guiding mode, the end face of the large-diameter section is used for jacking the corresponding movable valve seat, and a small-diameter section 15 of the stepped shaft structure extends into a center hole of the spring. The outer wall of the valve body is provided with a sunk groove 17 corresponding to each mounting hole one by one and used for accommodating the head of the bolt. An elastic sealing ring 18 is arranged between the bottom of the sinking groove and the head of the bolt.
The cylinder part 4 and the plate part 5 of each movable valve seat are integrally manufactured in the embodiment, and in other embodiments, the cylinder part and the plate part can be connected through threads or can be welded together. The cavity of the cylinder part 4 forms a valve seat flow passage hole 7 which is used for corresponding to a valve body flow passage hole 8 on the valve body for medium to flow through. The flashboard 2 is provided with a flashboard flow passage hole 6 which correspondingly forms a medium flow passage hole of the valve.
As shown in fig. 3, the second embodiment of the thin shear valve of the present invention differs from the first embodiment only in that the extending direction of the flat plate portion 5 of the movable valve seat 3 is different, and in this embodiment, the flat plate portion 5 of the movable valve seat extends to one side in the shutter moving direction.
In other embodiments of the utility model, the spring does not adopt a disc spring group, but adopts a common pressure spring; the top pressing block can also be of a cylindrical structure; the end part of the bolt is also not provided with a mounting groove, and the end surface of the rod part of the bolt directly supports against the compression spring.
Claims (7)
1. The utility model provides a slim shear valve, includes the valve body, and the valve body has the valve pocket, and the inside flashboard that is provided with of valve pocket all is provided with movable disk seat, its characterized in that in the both sides of flashboard in the valve pocket: the valve body is provided with a plurality of mounting holes corresponding to the movable valve seats, and each mounting hole is internally provided with an elastic jacking structure for jacking the corresponding movable valve seat.
2. The thin shear valve of claim 1, wherein: the inner wall of the mounting hole is provided with an internal thread structure, the elastic jacking structure comprises a bolt in threaded connection with the mounting hole, a rod part of the bolt is provided with a mounting groove with an opening facing the corresponding movable valve seat, a jacking block is arranged in the mounting groove, and a spring in jacking press fit with the jacking block is arranged in the mounting groove.
3. The thin shear valve of claim 2, wherein: the spring includes a plurality of dish springs that stack in proper order along the axis direction of mounting groove.
4. The thin shear valve of claim 3, wherein: the top briquetting is the stepped shaft structure, and the major diameter section direction of stepped shaft structure is installed in the mounting groove and the terminal surface of major diameter section is used for the corresponding movable valve seat of roof pressure, and the minor diameter section of stepped shaft structure stretches into in the centre bore of dish spring.
5. A low profile shear valve as claimed in any one of claims 2 to 4, wherein: the outer wall of the valve body is provided with a sunk groove corresponding to each mounting hole one by one and used for accommodating the head of the bolt.
6. The thin shear valve of claim 5, wherein: an elastic sealing ring is arranged between the bottom of the sinking groove and the head of the bolt.
7. The thin shear valve of claim 1, wherein: each movable valve seat comprises a cylinder part and a flat plate part extending to one side or two sides along the moving direction of the gate plate, and the cylinder part and the flat plate part are integrally formed or welded or in threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123141524.7U CN216279478U (en) | 2021-12-14 | 2021-12-14 | Thin type shearing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123141524.7U CN216279478U (en) | 2021-12-14 | 2021-12-14 | Thin type shearing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216279478U true CN216279478U (en) | 2022-04-12 |
Family
ID=81057088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123141524.7U Active CN216279478U (en) | 2021-12-14 | 2021-12-14 | Thin type shearing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216279478U (en) |
-
2021
- 2021-12-14 CN CN202123141524.7U patent/CN216279478U/en active Active
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| GR01 | Patent grant |