CN216382626U - Hydraulic control butterfly valve with double sealing structure - Google Patents
Hydraulic control butterfly valve with double sealing structure Download PDFInfo
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- CN216382626U CN216382626U CN202123337194.9U CN202123337194U CN216382626U CN 216382626 U CN216382626 U CN 216382626U CN 202123337194 U CN202123337194 U CN 202123337194U CN 216382626 U CN216382626 U CN 216382626U
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Abstract
The utility model relates to the technical field of butterfly valves, and particularly discloses a hydraulic control butterfly valve with a double-sealing structure, which comprises a hydraulic control butterfly valve main body; the hydraulic control butterfly valve comprises a main body, a valve rod and a valve clack, wherein the valve clack is arranged in a cavity on the valve body, the valve rod penetrates through the valve clack, and the top end of the valve rod penetrates through the valve body; a sealing cavity matched with the valve rod structure is formed in the position, corresponding to the valve rod, of the valve body, and a double-sealing structure is arranged inside the sealing cavity; the double-sealing structure comprises an inner spiral sleeve and an outer spiral sleeve, wherein the inner spiral sleeve is provided with a sealing end sleeve, and the sealing end sleeves are arranged at the upper end and the lower end of the sealing cavity. This scheme has increased double seal structure between valve rod and valve body, can realize through this double seal structure with the valve rod, the leakproofness of being connected between the valve body, uses through the cooperation of interior spiral shell with outer spiral shell, can effectively avoid appearing the problem that the butterfly valve leakproofness is not enough because of its self takes place to deform and leads to.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a hydraulic control butterfly valve with a double-sealing structure.
Background
In actual use of the hydraulic control butterfly valve, a gap is easily generated between the valve rod and the valve body, so that a medium is easily leaked from a valve rod hole on the valve body.
However, since the sealing ring is easily deformed while the valve rod rotates, and thus the problem of insufficient sealing performance still exists between the valve rod and the valve body, a hydraulic control butterfly valve with a double sealing structure is needed to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hydraulic control butterfly valve with a double-sealing structure to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a hydraulic control butterfly valve with a double-sealing structure comprises a hydraulic control butterfly valve main body; the hydraulic control butterfly valve comprises a main body, a valve rod and a valve clack, wherein the valve clack is arranged in a cavity on the valve body, the valve rod penetrates through the valve clack, and the top end of the valve rod penetrates through the valve body; a sealing cavity matched with the valve rod structure is formed in the position, corresponding to the valve rod, of the valve body, and a double-sealing structure is arranged inside the sealing cavity; the double-sealing structure comprises an inner spiral sleeve and an outer spiral sleeve which are arranged in a sealing cavity, the inner spiral sleeve is fixedly sleeved on the circumferential outer side wall of the valve rod, the outer spiral sleeve is sleeved on the circumferential outer side wall of the inner spiral sleeve, and the outer spiral sleeve is arranged in the sealing cavity in a sliding mode under the matched use of the inner spiral sleeve and the outer spiral sleeve; the upper end and the lower end of the inner spiral sleeve are both provided with integrated sealing end sleeves, and the sealing end sleeves are arranged at the upper end and the lower end of the sealing cavity.
Preferably, a main sealing ring is installed on the valve body at a position corresponding to the valve clack.
Preferably, an outer spiral structure is arranged on the circumferential outer side wall of the inner spiral sleeve, and an inner spiral structure matched with the outer spiral structure is arranged on the circumferential inner side wall of the outer spiral sleeve.
Preferably, the upper end and the lower end of the outer spiral sleeve are both provided with compensation sealing rings, and the two groups of compensation sealing rings are arranged on the sealing end sleeve in a vertically sliding mode through a return spring.
Preferably, a compensation chute matched with the compensation sealing ring in structure is formed in the position, corresponding to the compensation sealing ring, of the sealing end sleeve, and the compensation sealing ring is connected with the inner wall of the compensation chute in a vertical sliding mode through a return spring.
Preferably, the section of the sealing end sleeve is of a T-shaped structure, and the outer diameter of the large-diameter section of the sealing end sleeve is larger than the inner diameter of the sealing cavity.
Preferably, a sealing groove for rotating the sealing end sleeve is formed in the position, corresponding to the large-diameter section of the sealing end sleeve, of the sealing cavity.
Compared with the prior art, the utility model has the beneficial effects that:
according to the hydraulic control butterfly valve with the double sealing structure, the double sealing structure is additionally arranged between the valve rod and the valve body, and the sealing performance of connection between the valve rod and the valve body can be realized through the double sealing structure; and this double seal structure uses through the cooperation of interior spiral shell and outer spiral shell, can effectively avoid appearing because of its self takes place the not enough problem of butterfly valve leakproofness that deformation leads to.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of the main seal ring of the present invention;
fig. 3 is a cross-sectional view of a double seal structure of the present invention.
In the figure: 1. a hydraulic control butterfly valve main body; 2. a valve body; 3. a valve stem; 4. a valve flap; 5. sealing the cavity; 6. an inner helical casing; 7. an outer helical casing; 8. sealing the end sleeve; 9. a primary seal ring; 10. an external spiral structure; 11. an internal helical structure; 12. a compensating seal ring; 13. a return spring; 14. the compensation chute.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, the present invention provides a technical solution: a hydraulic control butterfly valve with a double-sealing structure comprises a hydraulic control butterfly valve main body 1; the hydraulic control butterfly valve main body 1 is provided with a valve body 2, a valve rod 3 and a valve clack 4, the valve clack 4 is installed in a cavity on the valve body 2, the valve rod 3 penetrates through the valve clack 4, and the top end of the valve rod 3 penetrates through the valve body 2; a sealing cavity 5 structurally matched with the valve rod 3 is formed in the position, corresponding to the valve rod 3, of the valve body 2, and a double-sealing structure is arranged inside the sealing cavity 5; the double-sealing structure comprises an inner spiral sleeve 6 and an outer spiral sleeve 7 which are arranged in a sealing cavity 5, wherein the inner spiral sleeve 6 is fixedly sleeved on the circumferential outer side wall of the valve rod 3, the outer spiral sleeve 7 is sleeved on the circumferential outer side wall of the inner spiral sleeve 6, and the outer spiral sleeve 7 is arranged in the sealing cavity 5 in a vertically sliding mode under the matched use of the inner spiral sleeve 6 and the outer spiral sleeve 7; the upper end and the lower end of the inner spiral sleeve 6 are both provided with integrated sealing end sleeves 8, and the sealing end sleeves 8 are arranged at the upper end and the lower end of the sealing cavity 5.
Furthermore, a main sealing ring 9 is arranged on the valve body 2 corresponding to the valve clack 4.
Further, an outer spiral structure 10 is arranged on the circumferential outer side wall of the inner spiral sleeve 6, and an inner spiral structure 11 matched with the outer spiral structure 10 is arranged on the circumferential inner side wall of the outer spiral sleeve 7.
Furthermore, the upper end and the lower end of the outer spiral sleeve 7 are both provided with compensation sealing rings 12, and the two groups of compensation sealing rings 12 are arranged on the sealing end sleeve 8 in a vertically sliding manner through a return spring 13.
Furthermore, a compensation chute 14 matched with the compensation sealing ring 12 in structure is formed in the position, corresponding to the compensation sealing ring 12, of the sealing end sleeve 8, and the compensation sealing ring 12 is connected with the inner wall of the compensation chute 14 in a vertical sliding mode through a return spring 13.
Furthermore, the section of the sealing end sleeve 8 is of a T-shaped structure, and the outer diameter of the large-diameter section of the sealing end sleeve 8 is larger than the inner diameter of the sealing cavity 5.
Furthermore, a sealing groove for rotating the sealing end sleeve 8 is formed in the position, corresponding to the large-diameter section of the sealing end sleeve 8, of the sealing cavity 5.
The working principle is as follows: when the hydraulic control butterfly valve is in actual use, the valve clack 4 is rotated by the valve rod 3 to control the flow of a pipeline, the inner spiral sleeve 6 and the sealing end sleeve 8 rotate synchronously with the valve rod 3 while the valve rod 3 rotates, and under the matched use of the outer spiral structure 10 on the inner spiral sleeve 6 and the inner spiral structure 11 on the outer spiral sleeve 7, the outer spiral sleeve 7 slides on the inner spiral sleeve 6, so that the outer spiral sleeve 7 and the inner spiral sleeve 6 are always in sealing connection; meanwhile, the compensation seal rings 12 at the upper end and the lower end of the outer spiral sleeve 7 are always tightly connected with the end wall of the outer spiral sleeve 7 under the action of the return spring 13, so that the sealing performance of the inner side wall and the outer side wall of the outer spiral sleeve 7 is ensured; because the upper and lower both ends of interior spiral shell 6 all are provided with sealed pot head 8, make it fully ensure the leakproofness of sealed chamber 5, prevent that the material from leaking the condition in the junction of valve body 2 and valve rod 3 from appearing.
It is worth noting that: the whole device realizes control to the device through the controller, and the controller is common equipment and belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure of the controller are not repeated herein.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a liquid accuse butterfly valve with double seal structure which characterized in that: comprises a hydraulic control butterfly valve main body (1); the hydraulic control butterfly valve comprises a hydraulic control butterfly valve body (1), and is characterized in that the hydraulic control butterfly valve body (1) is provided with a valve body (2), a valve rod (3) and a valve clack (4), the valve clack (4) is installed in a cavity on the valve body (2), the valve rod (3) penetrates through the valve clack (4), and the top end of the valve rod (3) penetrates through the valve body (2); a sealing cavity (5) structurally matched with the valve rod (3) is formed in the position, corresponding to the valve rod (3), of the valve body (2), and a double-sealing structure is arranged inside the sealing cavity (5); the double-sealing structure comprises an inner spiral sleeve (6) and an outer spiral sleeve (7) which are arranged in a sealing cavity (5), the inner spiral sleeve (6) is fixedly sleeved on the outer side wall of the circumference of the valve rod (3), the outer spiral sleeve (7) is sleeved on the outer side wall of the circumference of the inner spiral sleeve (6), and the outer spiral sleeve (7) is arranged in the sealing cavity (5) in a vertically sliding mode under the matched use of the inner spiral sleeve (6) and the outer spiral sleeve (7); the upper end and the lower end of the inner spiral sleeve (6) are both provided with integrated sealing end sleeves (8), and the sealing end sleeves (8) are arranged at the upper end and the lower end of the sealing cavity (5).
2. The liquid control butterfly valve with the double sealing structure according to claim 1, wherein: and a main sealing ring (9) is arranged on the valve body (2) corresponding to the valve clack (4).
3. The liquid control butterfly valve with the double sealing structure according to claim 1, wherein: an outer spiral structure (10) is arranged on the circumferential outer side wall of the inner spiral sleeve (6), and an inner spiral structure (11) matched with the outer spiral structure (10) is arranged on the circumferential inner side wall of the outer spiral sleeve (7).
4. The liquid control butterfly valve with the double sealing structure according to claim 1, wherein: the upper end and the lower end of the outer spiral sleeve (7) are both provided with compensation sealing rings (12), and the two groups of compensation sealing rings (12) are arranged on the sealing end sleeve (8) in a vertically sliding mode through a return spring (13).
5. The liquid control butterfly valve with the double sealing structure according to claim 4, wherein: and a compensation sliding chute (14) matched with the compensation sealing ring (12) in structure is formed in the position, corresponding to the compensation sealing ring (12), of the sealing end sleeve (8), and the compensation sealing ring (12) is connected with the inner wall of the compensation sliding chute (14) in a vertical sliding mode through a return spring (13).
6. The liquid control butterfly valve with the double sealing structure according to claim 1, wherein: the section of the sealing end sleeve (8) is of a T-shaped structure, and the outer diameter of the large-diameter section of the sealing end sleeve (8) is larger than the inner diameter of the sealing cavity (5).
7. The liquid control butterfly valve with the double sealing structure according to claim 1, wherein: and a sealing groove for rotating the sealing end sleeve (8) is formed in the position, corresponding to the large-diameter section of the sealing end sleeve (8), of the sealing cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337194.9U CN216382626U (en) | 2021-12-28 | 2021-12-28 | Hydraulic control butterfly valve with double sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337194.9U CN216382626U (en) | 2021-12-28 | 2021-12-28 | Hydraulic control butterfly valve with double sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216382626U true CN216382626U (en) | 2022-04-26 |
Family
ID=81238626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123337194.9U Active CN216382626U (en) | 2021-12-28 | 2021-12-28 | Hydraulic control butterfly valve with double sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216382626U (en) |
-
2021
- 2021-12-28 CN CN202123337194.9U patent/CN216382626U/en active Active
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