CN215568288U - Valve self-sealing structure - Google Patents
Valve self-sealing structure Download PDFInfo
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- CN215568288U CN215568288U CN202122005699.9U CN202122005699U CN215568288U CN 215568288 U CN215568288 U CN 215568288U CN 202122005699 U CN202122005699 U CN 202122005699U CN 215568288 U CN215568288 U CN 215568288U
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Abstract
The utility model relates to a valve self-sealing structure which comprises a valve body and a valve cover, wherein the valve cover and the valve body are assembled to form a mounting groove, a self-sealing ring is arranged in the mounting groove, a first sealing ring is arranged between an inner ring of the self-sealing ring and the valve cover, a second sealing ring is arranged between an outer ring of the self-sealing ring and the valve body, a backing ring is arranged at the upper end of the self-sealing ring, and four open rings partially embedded into the valve body are arranged at the upper end of the backing ring. This valve self sealss structural design is reasonable, only needs simply to revise current self-sealing ring, can realize reliably sealed under high, low pressure operating mode, and whole transformation cost is lower.
Description
Technical Field
The utility model relates to the field of pressure self-sealing gate valves, in particular to a valve self-sealing structure.
Background
The gate valve is widely applied to various fields because of the advantages of small flow resistance, good sealing performance and the like as a valve for controlling the on-off of a pipeline. Usually, a valve body and a valve cover of the gate valve are connected by a sealing gasket and a bolt to realize sealing, but for some high-pressure valves, a pressure self-sealing structure is often required to be adopted in practical use, but for the valves less than or equal to 600LB, the difficulty of moving to realize sealing exists because the pressure is not high.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to overcome the defects of the prior art, a valve self-sealing structure is provided, and sealing is realized under 600LB or even lower pressure.
In order to achieve the technical effects, the utility model adopts the technical scheme that: the utility model provides a valve self sealss structure, includes valve body and valve gap, the valve gap can form a mounting groove with the valve body assembly, be provided with the self-sealing ring in the mounting groove, be provided with first sealing washer between the inner circle of self-sealing ring and the valve gap, be provided with the second sealing washer between the outer lane of self-sealing ring and the valve body, be provided with the backing ring from the sealing ring upper end, the backing ring upper end is provided with the ring of four ring openings in the partial embedding valve body.
Preferably, the bottom of the mounting groove is provided with an inclined plane, and the bottom of the self-sealing ring is of a wedge-shaped structure matched with the inclined plane.
Preferably, the inner ring and the outer ring of the self-sealing ring are respectively provided with a first sealing groove and a second sealing groove, and the first sealing ring and the second sealing ring are respectively arranged in the first sealing groove and the second sealing groove.
Preferably, the first sealing ring and the second sealing ring are both O-rings.
Preferably, the upper end of the four open rings is provided with a preload piece connected with a valve cover.
Compared with the prior art, the utility model has the beneficial effects that: this valve self sealss structural design is reasonable, only needs simply to revise current self-sealing ring, can realize reliably sealed under high, low pressure operating mode, and whole transformation cost is lower.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments, and it is apparent that the described embodiments are some, but not all embodiments of the present invention.
Drawings
Fig. 1 is a schematic structural view of a self-sealing structure of the valve of the present invention.
The reference numbers and corresponding designations in the drawings are: 1. the valve comprises a valve body, a valve cover 2, a self-sealing ring 3, a first sealing groove 31, a second sealing groove 32, a first sealing ring 4, a second sealing ring 5, a backing ring 6, a four-way opening ring 7 and a preload part 8.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Under the high-pressure working condition (more than 600LB), the self-sealing ring 3 can realize high-pressure sealing by being deformed under the pressure of a medium and matching with the backing ring 6 and the four-open ring 7, and if the self-sealing ring is under the low-medium pressure working condition (less than or equal to 600LB), the self-sealing ring 3 can not be deformed so as to realize effective sealing. The utility model improves the existing self-sealing ring 3, and simultaneously adds two O-shaped rings to meet the requirement of low-pressure sealing, and the structure is as follows:
the embodiment discloses a valve self-sealing structure, which comprises a valve body 1 and a valve cover 2, wherein the valve cover 2 and the valve body 1 are assembled to form a mounting groove, a self-sealing ring 3 is arranged in the mounting groove, a first sealing ring 4 is arranged between an inner ring of the self-sealing ring 3 and the valve cover 2, and a second sealing ring 5 is arranged between an outer ring of the self-sealing ring 3 and the valve body 1, wherein the first sealing ring 4 and the second sealing ring 5 are both O-shaped rings; the upper end of the self-sealing ring 3 is provided with a backing ring 6, and the upper end of the backing ring 6 is provided with a four-open ring 7 which is partially embedded into the valve body 1.
This valve self sealss structure is through at the interior of self-sealing ring 3, the first sealing washer 4 and the second sealing washer 5 of packing into respectively in the outer lane, even be in under the low middling pressure operating mode, can realize the reliable sealed of self-sealing ring 3 and valve gap 2 through first sealing washer 4, can realize the sealed of self-sealing ring 3 and valve body 1 through second sealing washer 5, and then also can realize reliably sealing under the low pressure operating mode, overall structure is simple and use cost is lower.
In order to enhance the sealing effect between the valve body 1 and the valve cover 2, the bottom of the mounting groove is provided with an inclined plane, and the bottom of the self-sealing ring 3 is of a wedge-shaped structure matched with the inclined plane.
For the first sealing washer 4 and the second sealing washer 5 of easy to assemble, the inner circle and the outer lane of self-sealing ring 3 are provided with first seal groove and second seal groove respectively, and first sealing washer 4 and second sealing washer 5 set up respectively in first seal groove and second seal groove.
The upper end of the four-open ring 7 is provided with a preload piece 8 connected with the valve cover 2 and used for applying a preload to the self-sealing structure.
To sum up, this valve self sealss structural design is reasonable, only needs to realize reliably sealed under high, low pressure operating mode to current self-sealing ring 3 simple modification, and whole transformation cost is lower.
The present invention is not limited to the above-described embodiments, and various modifications made without inventive step from the above-described concept will fall within the scope of the present invention for those skilled in the art.
Claims (5)
1. The utility model provides a valve self sealss structure, includes valve body (1) and valve gap (2), valve gap (2) can form a mounting groove with valve body (1) assembly, a serial communication port, be provided with self-sealing ring (3) in the mounting groove, be provided with first sealing washer (4) between inner circle and valve gap (2) of self-sealing ring (3), be provided with second sealing washer (5) between outer lane and valve body (1) of self-sealing ring (3), be provided with backing ring (6) from sealing ring (3) upper end, backing ring (6) upper end is provided with four ring opening (7) in the partial embedding valve body (1).
2. The valve self-sealing structure as claimed in claim 1, wherein the bottom of the mounting groove is provided with a slope, and the bottom of the self-sealing ring (3) is in a wedge-shaped structure matched with the slope.
3. The valve self-sealing structure according to claim 2, characterized in that the inner ring and the outer ring of the self-sealing ring (3) are respectively provided with a first sealing groove (31) and a second sealing groove (32), and the first sealing ring (4) and the second sealing ring (5) are respectively arranged in the first sealing groove (31) and the second sealing groove (32).
4. The valve self-sealing structure according to claim 3, characterized in that the first sealing ring (4) and the second sealing ring (5) are both O-rings.
5. The valve self-sealing structure according to claim 1, characterized in that the upper end of the four open loops (7) is provided with a preload member (8) to which the valve cap (2) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122005699.9U CN215568288U (en) | 2021-08-24 | 2021-08-24 | Valve self-sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122005699.9U CN215568288U (en) | 2021-08-24 | 2021-08-24 | Valve self-sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215568288U true CN215568288U (en) | 2022-01-18 |
Family
ID=79841412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122005699.9U Active CN215568288U (en) | 2021-08-24 | 2021-08-24 | Valve self-sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215568288U (en) |
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2021
- 2021-08-24 CN CN202122005699.9U patent/CN215568288U/en active Active
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