CN218031485U - Stop valve and multi-linear compensation type sealing structure thereof - Google Patents
Stop valve and multi-linear compensation type sealing structure thereof Download PDFInfo
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- CN218031485U CN218031485U CN202222332262.0U CN202222332262U CN218031485U CN 218031485 U CN218031485 U CN 218031485U CN 202222332262 U CN202222332262 U CN 202222332262U CN 218031485 U CN218031485 U CN 218031485U
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Abstract
The utility model discloses a stop valve and a multi-linear compensation type sealing structure thereof, which comprises a sleeve, a valve clack arranged in the sleeve, a sealing component arranged between the sleeve and the outer wall of the valve clack in a sealing way and a bottom sealing washer arranged at the bottom end of the sleeve; the bottom sealing washer comprises a washer body and sealing convex rings which are arranged on the washer body and distributed continuously, and a sealing step groove is formed between every two adjacent sealing convex rings. The sealing assembly between the valve clack and the sleeve forms a ring surface sealing structure, the bottom sealing washer forms a bottom surface sealing structure, and the sealing assembly and the bottom sealing washer are matched to form a multi-linear sealing form, so that a reliable sealing effect is achieved.
Description
Technical Field
The utility model relates to a valve seal technical field, concretely relates to stop valve and nonlinearity compensation formula seal structure thereof.
Background
The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and the valve is required to be well sealed if the valve can have good service performance and leakage does not occur. The leakage of the valve may be caused by various reasons, including unreasonable design, defective sealing contact surface, loose fastening parts, loose fitting between the valve body and the valve cover, etc., all of which may cause the valve to be sealed poorly, thereby causing leakage.
The existing valve sealing structure is mostly sealed by a tetrafluoro ring, when solid particles exist in a transmission medium, the solid particles and precipitates are easy to damage a sealing ring, so that the sealing ring is damaged, the sealing performance of the sealing ring is reduced to generate leakage, and the service performance and the service life of the valve are greatly reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stop valve and multilinear compensation formula seal structure thereof to solve the poor problem of current valve sealing performance.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a stop valve multi-linear compensation type sealing structure comprises a sleeve, a valve clack arranged in the sleeve, a sealing assembly arranged between the sleeve and the outer wall of the valve clack in a sealing mode, and a bottom sealing washer arranged at the bottom end of the sleeve;
the bottom sealing washer comprises a washer body and sealing convex rings which are arranged on the washer body and distributed continuously, and a sealing step groove is formed between every two adjacent sealing convex rings.
Further, the sealing assembly comprises two groups of sealing rings and a guide belt arranged between the two groups of sealing rings, and an assembly groove for assembling the sealing rings and a guide groove for assembling the guide belt are respectively formed in the excircle of the valve clack.
Further, the height of the sealing convex ring in the middle of the gasket body is higher than that of the sealing convex rings on the two sides.
Furthermore, the bottom sealing washer is of a herringbone structure.
Further, a fitting groove is provided adjacent to the guide groove.
Furthermore, a sealing ring is provided with a V-shaped sealing groove.
The utility model also provides a stop valve, including the multilinear compensation formula seal structure, still include the valve body, be located the valve gap of valve body upper end, be located the cylinder of valve gap upper end, the sleeve passes through the sealing ring cooperation to be connected inside the valve body, and the valve rod has been run through to the inside of valve clack, and the top of valve rod runs through sleeve, valve gap respectively and the cooperation is connected in the cylinder, and the bottom of valve rod is provided with an axle circlip.
The utility model discloses following beneficial effect has: the utility model provides a multilinear compensation formula seal structure and stop valve thereof, its structure is reliable, and performance is good to seal assembly between valve clack and the sleeve forms anchor ring seal structure, forms bottom surface seal structure with bottom seal ring, and forms multilinear's sealed form with both above-mentioned cooperations, reaches reliable sealed effect.
The bottom sealing washer is in a herringbone structure by the structural arrangement of the sealing convex ring and the sealing stepped groove in the bottom sealing washer, the sealing convex ring is used as a sealing binding surface, the sealing stepped groove is used as a buffer groove for packing, a compensation type sealing effect is achieved, direct stress of the packing is effectively prevented from acting on a sealing surface, the sealing performance and the sealing effect of plane sealing of the stop valve are improved, and the service life of the stop valve is prolonged;
in addition, through the direction seal structure between valve clack and the sleeve and the sealing washer structure that is located direction seal structure upper end, lower extreme, the collection is led with sealed as an organic whole, simultaneously, forms dual seal structure through upper and lower two sets of sealing washers to form the offset structure with the sealing washer of seting up on the sealing washer, the effectual reliable laminating that realizes between valve clack and the sleeve is sealed, and is sealed effectual.
Drawings
Fig. 1 is the schematic view of the structure of the middle stop valve of the present invention.
FIG. 2 is a schematic view of the multi-linear compensated seal arrangement shown at circle in FIG. 1;
fig. 3 is a cross-sectional view of the middle bottom sealing ring of the present invention;
FIG. 4 is a schematic structural view of the middle seal assembly of the present invention;
Detailed Description
The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 2, a multi-linear compensation type sealing structure includes a sleeve 1, a valve flap 2 disposed inside the sleeve 1, a sealing assembly 3 sealingly disposed between the sleeve 1 and an outer wall of the valve flap 2, and a bottom sealing gasket 4 disposed at a bottom end of the sleeve 1. A sealing assembly 3 between the valve clack 2 and the sleeve 1 forms a ring surface sealing structure, a bottom sealing washer 4 forms a bottom surface sealing structure, and the sealing assembly and the bottom sealing washer are matched to form a multi-linear sealing form in the sealing structure of the stop valve, so that a reliable sealing effect is achieved.
As shown in fig. 2 to 4, the bottom sealing gasket 4 includes a gasket body 40 and sealing convex rings 41 disposed on the gasket body 40 and distributed continuously, and a sealing step groove 42 is formed between adjacent sealing convex rings 41. Through the structure setting of sealed bulge loop 41 and sealed step groove 42 in bottom seal ring 4 for bottom seal ring 4 forms the chevron structure, regards sealed bulge loop 41 as sealed laminating face, regards sealed step groove 42 as the dashpot that packs, reaches the sealed effect of compensation formula, and effectual packing direct stress effect of avoiding improves the sealed performance and the sealed effect of the plane seal of stop valve on sealed face, prolongs its life simultaneously. And the height of the sealing convex ring 41 in the middle of the gasket body 40 is higher than the height of the sealing convex rings 41 on the two sides, so that a stepped sealing structure is formed, the reliability of the fitting sealing of planes with different heights is adapted, and the reliable sealing effect is achieved.
As shown in fig. 4, the sealing assembly 3 includes two sets of sealing rings 30 and a guiding strip 31 disposed between the two sets of sealing rings 30, and an assembly groove 33 for assembling the sealing rings 30 and a guiding groove 34 for assembling the guiding strip 31 are respectively opened on the outer circumference of the valve flap 2. Assembling groove 33 and guide way 34 adjacent setting, the guiding strip 31 assembly plays the guide effect in guide way 34, the sealing washer 30 assembly plays sealed effect in assembling groove 33, sealing washer 30 is located guiding strip 31's top and below respectively, form double seal structure, it is as an organic whole with sealed to collect the direction in the sealing connection of valve clack 2 and sleeve 1, and the seal groove that is the V-arrangement structure that sets up on the sealing washer 30 forms compensation formula structure, the effectual reliable laminating that realizes between valve clack 2 and the sleeve 1 is sealed, it is sealed effectual.
Furthermore, as shown in fig. 1, the utility model also provides a stop valve, including the multilinear compensation formula seal structure, still include valve body 5, be located valve body 5 upper end valve gap 6, be located the cylinder 7 of valve gap 6 upper end, sleeve 1 is connected inside valve body 5 through the sealing ring cooperation, and the inside of valve clack 2 is run through there is valve rod 8, and the top of valve rod 8 runs through sleeve 1, valve gap 6 respectively and the cooperation is connected in cylinder 7, and the bottom of valve rod 8 is provided with axle circlip.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The multi-linear compensation type sealing structure of the stop valve is characterized by comprising a sleeve (1), a valve clack (2) arranged in the sleeve (1), a sealing assembly (3) arranged between the sleeve (1) and the outer wall of the valve clack (2) in a sealing mode, and a bottom sealing gasket (4) arranged at the bottom end of the sleeve (1);
the bottom sealing washer (4) comprises a washer body (40) and sealing convex rings (41) which are arranged on the washer body (40) and distributed continuously, and a sealing step groove (42) is formed between every two adjacent sealing convex rings (41).
2. The multi-linear compensation type sealing structure of the stop valve according to claim 1, characterized in that the sealing assembly (3) comprises two groups of sealing rings (30) and a guide belt (31) arranged between the two groups of sealing rings (30), and an assembly groove (33) for assembling the sealing rings (30) and a guide groove (34) for assembling the guide belt (31) are respectively arranged on the outer circle of the valve clack (2).
3. The stop valve multilinear compensation type seal structure according to claim 1, characterized in that the height of the seal convex ring (41) in the middle of the gasket body (40) is higher than the height of the seal convex rings (41) on both sides.
4. The multiple linear compensation seal structure of stop valve according to any one of claims 1 to 3, characterized in that the bottom sealing washer (4) is of chevron-shaped configuration.
5. The multiple linear compensation seal structure of stop valve according to claim 2, characterized in that the fitting groove (33) is provided adjacent to the guide groove (34).
6. The multi-linear compensation type sealing structure of the stop valve according to claim 5, characterized in that a sealing groove in a V-shaped structure is formed on the sealing ring (30).
7. A stop valve comprising a stop valve multilinear compensated seal arrangement of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222332262.0U CN218031485U (en) | 2022-08-31 | 2022-08-31 | Stop valve and multi-linear compensation type sealing structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222332262.0U CN218031485U (en) | 2022-08-31 | 2022-08-31 | Stop valve and multi-linear compensation type sealing structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218031485U true CN218031485U (en) | 2022-12-13 |
Family
ID=84352998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222332262.0U Active CN218031485U (en) | 2022-08-31 | 2022-08-31 | Stop valve and multi-linear compensation type sealing structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218031485U (en) |
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2022
- 2022-08-31 CN CN202222332262.0U patent/CN218031485U/en active Active
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