CN216519658U - Novel two-way seal structure who presses ball-cock assembly - Google Patents
Novel two-way seal structure who presses ball-cock assembly Download PDFInfo
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- CN216519658U CN216519658U CN202123276203.8U CN202123276203U CN216519658U CN 216519658 U CN216519658 U CN 216519658U CN 202123276203 U CN202123276203 U CN 202123276203U CN 216519658 U CN216519658 U CN 216519658U
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Abstract
The utility model provides a novel sealing structure of a bidirectional pressing rotary ball valve, which comprises a triangular sealing ring and a valve seat assembly, wherein the triangular sealing ring is a soft sealing ring, the axial section of the triangular sealing ring is triangular, one vertex of the triangle is positioned at the inner side, the valve seat assembly is fixed at the inner side of a valve body of the rotary ball valve, a sealing surface, corresponding to a valve plate of the rotary ball valve, on the valve seat assembly is provided with a groove, the triangular sealing ring is clamped in the groove, the inner edge of the triangular sealing ring is protruded out of the groove, the soft triangular sealing ring is matched and sealed with the valve plate of the valve, the sealing structure of the bidirectional pressing rotary ball valve is changed into bidirectional pressing soft sealing, a sealing pair is linear sealing, the problem of abrasion of a surfacing layer on the surface of the valve seat of the bidirectional pressing rotary ball valve, which is hard-touched and hard-sealed is solved, and the triangle-shaped rubber circle card is difficult for droing and changing easily in the recess, and the quick maintenance of being convenient for uses this seal structure's two-way pressure to revolve the ball valve and can have good sealing performance.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a novel sealing structure of a bidirectional pressure rotary ball valve.
Background
The bidirectional hard sealing rotary ball valve is also called a bidirectional flow hard-touch hard rotary ball valve and has the functions and advantages of a butterfly valve, a semi-ball valve, a gate valve and a stop valve. The structure of the valve is that a rotatable rotating shaft is arranged on a valve body, a valve plate is arranged on the rotating shaft, a sealing structure corresponding to the valve plate is arranged on the valve body, the valve is sealed by adopting the structure and the principle of a half-ball valve, and the butterfly structure is adopted in the appearance, so that the butterfly valve has the characteristics of small size and light weight, and the butterfly valve not only can be reliably cut off under the forward pressure, but also can be reliably sealed when the reverse pressure or the reverse pressure is far greater than the forward pressure. However, the bidirectional hard sealing rotary ball valve sealing pair is a hard-to-hard tangential sealing structure, and in order to achieve a good sealing effect, large torque is generally required for closing, so that a surfacing layer on the surface of a valve seat is seriously abraded, and the sealing failure is caused.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a novel two-way seal structure who presses ball-cock assembly, the application with two-way pressure ball-cock assembly adopts triangle-shaped structure rubber circle to carry out soft seal, can realize the valve two-way seal reliably.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model provides a novel two-way seal structure of pressing ball-cock, includes triangle-shaped sealing washer and disk seat subassembly, the triangle-shaped sealing washer is soft sealing washer, the axial cross-section of triangle-shaped sealing washer is located the inboard for triangle-shaped and triangle-shaped summit, the disk seat subassembly is fixed in ball-cock's valve body is inboard, the last sealed face that corresponds ball-cock's valve plate of disk seat subassembly is provided with the recess, triangle-shaped sealing washer card is gone into in the recess and inward flange salient in the recess.
Further, the recess for with the shape that the triangle-shaped sealing washer matches, two sides of recess with the two sides of triangle-shaped sealing washer towards the inboard paste mutually.
Further, the valve seat assembly comprises a valve seat cover plate, a valve seat and a gland, the valve seat cover plate is arranged on one side, facing the valve plate, of the valve seat and is fixedly connected with the valve seat through bolts, the gland is fixed on the inner side of the valve body through bolts to form a clamping position, and the valve seat is clamped and fixed in the clamping position between the cover plate and the valve body.
Further, the groove is arranged at the joint of the valve seat cover plate and the valve seat.
Furthermore, a first O-shaped rubber sealing ring is arranged at a clamping position on one side, attached to the valve body, of the valve seat, and the first O-shaped rubber sealing ring is in interference fit with the inner side of the valve seat.
Furthermore, a second O-shaped rubber sealing ring is arranged at a position, adjacent to the clamping position, on the valve seat, and the second O-shaped rubber sealing ring is in interference fit with the inner side of the valve seat.
The utility model has the beneficial effects that: the sealing structure is provided with the soft triangular sealing ring to be matched and sealed with the valve plate of the valve, the sealing structure of the bidirectional pressure rotary ball valve is changed into bidirectional pressure soft sealing, the sealing pair is linear sealing, the problem of abrasion of a surfacing layer on the surface of a valve seat of the bidirectional pressure rotary ball valve, which is hard to touch and seal, is solved, the triangular rubber ring is clamped in the groove and is difficult to drop and easy to replace, the sealing structure is convenient to maintain quickly, and the bidirectional pressure rotary ball valve using the sealing structure can have good sealing performance.
Drawings
Fig. 1 is an installation structure diagram of a sealing structure of a novel bidirectional pressure rotary ball valve according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sealing structure of a novel bidirectional pressure rotary ball valve according to a first embodiment of the present invention.
Description of reference numerals:
1. a valve body; 2. a valve plate; 3. a triangular sealing ring; 4. a valve seat assembly; 41. a valve seat cover plate; 42. a valve seat; 43. a gland; 44. a groove; 45. clamping; 46. a first O-ring seal; 47. a second O-ring seal.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, a novel sealing structure of a bidirectional pressure rotary ball valve includes a triangular sealing ring and a valve seat assembly, the triangular sealing ring is a soft sealing ring, an axial cross section of the triangular sealing ring is triangular, a vertex of the triangle is located at an inner side, the valve seat assembly is fixed at an inner side of a valve body of the rotary ball valve, a groove is arranged on a sealing surface of the valve seat assembly corresponding to a valve plate of the rotary ball valve, the triangular sealing ring is clamped into the groove, and an inner edge of the triangular sealing ring protrudes out of the groove.
From the above description, the beneficial effects of the present invention are: the sealing structure is provided with the soft triangular sealing ring to be matched and sealed with the valve plate of the valve, the sealing structure of the bidirectional pressure rotary ball valve is changed into bidirectional pressure soft sealing, the sealing pair is linear sealing, the problem of abrasion of a surfacing layer on the surface of a valve seat of the bidirectional pressure rotary ball valve, which is hard to touch and seal, is solved, the triangular rubber ring is clamped in the groove and is difficult to drop and easy to replace, the sealing structure is convenient to maintain quickly, and the bidirectional pressure rotary ball valve using the sealing structure can have good sealing performance.
Further, the recess for with the shape that the triangle-shaped sealing washer matches, two sides of recess with the two sides of triangle-shaped sealing washer towards the inboard paste mutually.
According to the description, the groove is set to be the approximately triangular groove matched with the triangular sealing ring, the side faces extrude two sides of the triangular sealing ring, so that the deformation space of the sealing ring is limited within a controllable range, and the sealing structure can be matched with the valve plate to achieve a good sealing effect.
Further, the valve seat assembly comprises a valve seat cover plate, a valve seat and a gland, the valve seat cover plate is arranged on one side, facing the valve plate, of the valve seat and is fixedly connected with the valve seat through bolts, the gland is fixed on the inner side of the valve body through bolts to form a clamping position, and the valve seat is clamped and fixed in the clamping position between the cover plate and the valve body.
According to the above description, the gland is fixed on the inner side of the valve body to form a smart clamping position, and the valve seat is fixed on the inner side of the valve body in an extruding manner.
Further, the groove is arranged at the joint of the valve seat cover plate and the valve seat.
According to the above description, the groove for fixing the triangular sealing ring is formed in the joint of the valve seat cover plate and the valve seat, the groove is formed by the valve seat cover plate and the valve seat, the valve seat cover plate can be detached to be easily replaced when the triangular sealing ring is replaced, and the valve plate and the rotating shaft do not need to be detached.
Furthermore, a first O-shaped rubber sealing ring is arranged at a clamping position on one side, attached to the valve body, of the valve seat, and the first O-shaped rubber sealing ring is in interference fit with the inner side of the valve seat.
Furthermore, a second O-shaped rubber sealing ring is arranged at a position, adjacent to the clamping position, on the valve seat, and the second O-shaped rubber sealing ring is in interference fit with the inner side of the valve seat.
According to the above description, the sealing ring in interference fit is arranged between the inner side of the valve body and the valve seat, so that the sealing structure has a self-reinforcing sealing function, and a bidirectional sealing effect is ensured.
The bidirectional rotary ball pressing valve sealing structure is applied to a bidirectional rotary ball pressing valve, a soft sealing structure is formed by matching with a valve plate of the rotary ball pressing valve, a conical sealing surface of the valve plate and a triangular sealing ring of the sealing structure are extruded and linearly sealed, the original hard-to-hard tangential sealing is changed, the problem that a surfacing layer on the surface of a valve seat of the hard-to-hard sealing structure is seriously abraded can be effectively solved, and the sealing performance of the bidirectional rotary ball pressing valve is improved.
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is:
the utility model provides a novel two-way seal structure who presses ball valve, two-way pressure ball valve include valve body 1, pivot and valve plate 2, and valve body 1 is butterfly structure, and the sealed face of valve plate 2 is frustum inclined plane form, and seal structure installs in 1 inboards of valve body of two-way pressure ball valve, and it is sealed with the cooperation of valve plate 2.
Wherein, seal structure includes triangle-shaped sealing washer 3 and valve seat subassembly 4. The triangular seal ring 3 is a rubber seal ring, and the axial cross section is a triangle with one vertex positioned at the inner side. The valve seat assembly 4 includes a valve seat cover plate 41, a valve seat 42, and a gland 43. The position of the valve seat assembly 4 arranged on the inner side of the valve body 1 is arranged in a manner of two step surfaces, the pressing cover 43 is fixed at the position of one step surface close to the edge of the valve body 1 through bolts, and a clamping position 45 is formed between one surface of the pressing cover 43 facing the valve plate 2 and the other step surface of the valve body 1. The lateral surface of valve seat 42 sets up the protrusion that matches with screens 45 to on the adjacent and valve body 1 inboard face of protruding face and the convex face embedding set up first O shape sealing washer 46 and second O shape sealing washer 47, valve seat 42 compresses tightly in the screens 45 between apron and valve body 1 through gland 43, and thereby first O shape sealing washer 46 and second O shape sealing washer 47 and valve body 1 interference fit thoroughly seal the gap of fixed position, and can play the effect that reverse elasticity is used to valve plate 2 and triangle-shaped sealing washer 3.
The valve seat cover plate 41 is fixed on one side of the valve seat 42, which faces away from the gland 43, by bolts, and the inner side faces of the valve seat cover plate 41 and the valve seat 42, which face the center of the valve body 1, are inclined planes with the same angle as the sealing surface of the valve plate 2. The inner side position of the joint of the valve seat cover plate 41 and the valve seat 42 is provided with a groove 44 matched with the shape of the triangular sealing ring 3, namely, the joint of the valve seat cover plate 41 and the valve seat 42 is respectively provided with a half groove to form a groove 44 which is approximately triangular. The triangular sealing ring 3 is clamped in the groove 44 and protrudes from the groove 44 on the inner side, and two side surfaces of the groove 44 are attached to two inner-facing surfaces of the triangular sealing ring 3.
In conclusion, the novel sealing structure of the bidirectional pressure rotary ball valve provided by the utility model is applied to the bidirectional pressure rotary ball valve, the flexible triangular sealing ring is arranged to be matched and sealed with the valve plate of the valve, so that the sealing structure of the bidirectional pressure rotary ball valve is changed into bidirectional pressure soft sealing, the sealing pair is linear sealing, the problem of abrasion of a build-up welding layer on the surface of a valve seat of the bidirectional pressure rotary ball valve in hard-to-hard sealing is solved, the triangular rubber ring is clamped in the groove and is not easy to fall off, the triangular rubber ring is easy to replace due to the fact that the valve seat cover plate and the valve seat of the valve seat assembly are spliced into the groove, the sealing structure is convenient to maintain quickly, the sealing function is self-enhanced, the bidirectional sealing effect is ensured, and the bidirectional pressure rotary ball valve using the sealing structure can have good sealing performance.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (6)
1. The utility model provides a novel two-way seal structure of pressing ball-cock, a serial communication port, including triangle-shaped sealing washer and disk seat subassembly, the triangle-shaped sealing washer is soft sealing washer, the axial cross-section of triangle-shaped sealing washer is located the inboard for triangle-shaped and triangle-shaped's summit, the disk seat subassembly is fixed in ball-cock's valve body is inboard, the last sealed face that corresponds ball-cock's valve plate of disk seat subassembly is provided with the recess, triangle-shaped sealing washer card is gone into in the recess and inward flange salient in the recess.
2. The sealing structure of a novel bidirectional pressure rotary ball valve according to claim 1, wherein the groove is in a shape matching with the triangular sealing ring, and two side surfaces of the groove are attached to two inner-facing surfaces of the triangular sealing ring.
3. The sealing structure of a novel bidirectional pressure rotary ball valve according to claim 1, wherein the valve seat assembly comprises a valve seat cover plate, a valve seat and a gland, the valve seat cover plate is arranged on one side of the valve seat facing the valve plate and fixedly connected with the valve seat through a bolt, the gland is fixed on the inner side of the valve body through a bolt and forms a clamping position, and the valve seat is clamped in the clamping position between the cover plate and the valve body.
4. A novel sealing structure of a bidirectional pressure rotary ball valve according to claim 3, wherein the groove is provided at the joint of the valve seat cover plate and the valve seat.
5. A novel sealing structure of a bidirectional pressure rotary ball valve according to claim 3, wherein a first O-shaped rubber sealing ring is arranged at a clamping position on one side of the valve seat, which is attached to the valve body, and the first O-shaped rubber sealing ring is in interference fit with the inner side of the valve seat.
6. A novel sealing structure of a bidirectional pressure rotary ball valve according to claim 3, wherein a second O-shaped rubber sealing ring is arranged on the valve seat adjacent to the clamping position, and the second O-shaped rubber sealing ring is in interference fit with the inner side of the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123276203.8U CN216519658U (en) | 2021-12-24 | 2021-12-24 | Novel two-way seal structure who presses ball-cock assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123276203.8U CN216519658U (en) | 2021-12-24 | 2021-12-24 | Novel two-way seal structure who presses ball-cock assembly |
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| CN216519658U true CN216519658U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123276203.8U Active CN216519658U (en) | 2021-12-24 | 2021-12-24 | Novel two-way seal structure who presses ball-cock assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231773A (en) * | 2023-11-14 | 2023-12-15 | 自贡新比隆阀门有限公司 | Double-plate ball valve |
-
2021
- 2021-12-24 CN CN202123276203.8U patent/CN216519658U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231773A (en) * | 2023-11-14 | 2023-12-15 | 自贡新比隆阀门有限公司 | Double-plate ball valve |
| CN117231773B (en) * | 2023-11-14 | 2024-01-19 | 自贡新比隆阀门有限公司 | Double-plate ball valve |
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