CN222255113U - A semi-ball valve with a new composite sealing structure - Google Patents
A semi-ball valve with a new composite sealing structure Download PDFInfo
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- CN222255113U CN222255113U CN202420491832.7U CN202420491832U CN222255113U CN 222255113 U CN222255113 U CN 222255113U CN 202420491832 U CN202420491832 U CN 202420491832U CN 222255113 U CN222255113 U CN 222255113U
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- valve
- fixedly connected
- sealing ring
- cover
- valve body
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- 238000007789 sealing Methods 0.000 title claims abstract description 75
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 6
- 239000010962 carbon steel Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本实用新型公开了一种复合密封新型结构的半球阀，具体涉及半球阀技术领域，包括阀座，阀座上端中间固定连接有阀体，阀体上端设置有阀盖，阀盖上端设置有阀轴，阀轴下端固定连接有阀瓣，阀盖下端固定连接有第一密封圈，阀瓣右端固定连接有第二密封圈，阀体下端设置有下端盖，下端盖上端固定连接有旋转轴，第三螺纹孔内侧螺纹连接有第二螺母，下端盖上端固定连接有第三密封圈，阀座左右两端固定连接有法兰。本实用新型中，材质为橡胶的第一密封圈和第三密封圈保证阀体整体的密封性，配合材质为碳钢的第二密封圈复合使用，在阀瓣旋转使用过程中既增强阀体的密封性又能保证阀瓣与阀体内壁之间不会形成封闭的腔体，使阀体不遭受到破坏延长其使用寿命。
The utility model discloses a hemispherical valve with a new composite sealing structure, which specifically relates to the technical field of hemispherical valves, including a valve seat, a valve body fixedly connected to the middle of the upper end of the valve seat, a valve cover arranged at the upper end of the valve body, a valve shaft arranged at the upper end of the valve cover, a valve flap fixedly connected to the lower end of the valve shaft, a first sealing ring fixedly connected to the lower end of the valve cover, a second sealing ring fixedly connected to the right end of the valve flap, a lower end cover arranged at the lower end of the valve body, a rotating shaft fixedly connected to the upper end of the lower end cover, a second nut threadedly connected to the inner side of a third threaded hole, a third sealing ring fixedly connected to the upper end of the lower end cover, and flanges fixedly connected to the left and right ends of the valve seat. In the utility model, the first sealing ring and the third sealing ring made of rubber ensure the sealing of the valve body as a whole, and are used in combination with the second sealing ring made of carbon steel. During the rotation of the valve flap, the sealing of the valve body is enhanced and a closed cavity is not formed between the valve flap and the inner wall of the valve body, so that the valve body is not damaged and its service life is extended.
Description
Technical Field
The utility model relates to the technical field of hemispherical valves, in particular to a hemispherical valve with a novel composite sealing structure.
Background
The ball valve has the advantages of simple structure, good sealing performance, small volume, light weight, low material consumption, small installation size, small driving moment, simple and convenient operation and easy realization of quick opening and closing in a certain nominal diameter range, and is one of valve varieties which are developed faster in recent decades. The ball valve is widely used, the variety and the number of used products are still expanding, and the ball valve is developed towards the directions of high temperature, high pressure, large mouth, high tightness, long service life, excellent regulation performance and multifunction of a valve, the reliability and other performance indexes of the ball valve reach higher levels, and the ball valve has partially replaced gate valves, stop valves and throttle valves.
In the actual use process, the flow resistance of the ball valve is smaller, but the ball body and the valve body easily form a closed cavity in the opening process, so that the action of the valve is not easy, even the blockage and the damage of the valve can be possibly caused, the maintenance cost is higher, most of the existing half ball valves mostly adopt metal hard sealing structures, when the pipeline pressure is higher, the forward sealing zero leakage is difficult to ensure, and the reverse sealing performance is also poorer.
Accordingly, in view of the above, research and improvement have been made on the conventional structure and the conventional defects, and a novel hemispherical valve with a composite seal structure has been proposed.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides a hemispherical valve with a novel composite sealing structure.
In order to achieve the above purpose, the hemispherical valve with the novel composite sealing structure comprises a valve seat, wherein a valve body is fixedly connected in the middle of the upper end of the valve seat, a valve cover is arranged at the upper end of the valve body, a valve shaft is arranged at the upper end of the valve cover, a valve flap is fixedly connected to the lower end of the valve shaft, a first sealing ring is fixedly connected to the lower end of the valve cover, a second sealing ring is fixedly connected to the right end of the valve flap, a lower end cover is arranged at the lower end of the valve body, a rotating shaft is fixedly connected to the upper end of the lower end cover, a third threaded hole is formed in the lower end of the lower end cover, a second nut is connected to the inner side of the third threaded hole in a threaded manner, a third sealing ring is fixedly connected to the upper end of the lower end cover, and flanges are fixedly connected to the left end and the right end of the valve seat.
As a further description of the above technical solution:
The four sides of the upper end of the valve cover are provided with first threaded holes, and first nuts are connected with the inner sides of the first threaded holes in a threaded mode.
The valve cover is fixedly arranged on the valve body by utilizing the rotary fit between the first nut and the inner sides of the first threaded hole and the second threaded hole, and the tightness of the valve body is ensured under the fit use of the first sealing ring.
As a further description of the above technical solution:
The four corners of the upper end of the valve body are provided with second threaded holes, and the inner sides of the second threaded holes are connected with first nuts in a threaded manner.
Through the rotary fit between first nut and first screw hole and the second screw hole, can dismantle the valve gap, make things convenient for the follow-up inspection maintenance to the valve clack.
As a further description of the above technical solution:
The upper end of the valve cover is fixedly connected with a sleeve, and the inner side of the sleeve is in sliding fit with the valve shaft.
The valve shaft is twisted to drive the valve clack fixedly connected with the lower end of the valve shaft to rotate by taking the rotating shaft fixedly connected with the lower end cover as the center, and the second sealing ring fixedly connected with the right end of the valve clack is tightly clung to the inner wall of the valve body to slide.
As a further description of the above technical solution:
The lower end of the valve clack is provided with a through hole, and the inner side of the through hole is in running fit with the upper end of the rotating shaft.
The through hole at the lower end of the valve clack is in sliding fit with the rotating shaft, and the valve clack rotates by taking the rotating shaft as the center when in work, thereby assisting in positioning when in work.
As a further description of the above technical solution:
The lower end of the valve body is provided with a fourth threaded hole, and the inner side of the fourth threaded hole is in rotary fit with the upper end of the second nut.
The lower end cover is fixedly connected to the lower end of the valve body through the rotary fit between the second nut and the inner sides of the third threaded hole and the fourth threaded hole.
As a further description of the above technical solution:
The first sealing ring and the third sealing ring are made of rubber, and the second sealing ring is made of carbon steel.
The tightness of the valve body is guaranteed by the first sealing ring and the third sealing ring, and the sealing space can not be formed between the valve clack and the inner wall of the valve body by the third sealing ring.
The utility model has the following beneficial effects:
1. According to the utility model, the valve clack with the lower end fixedly connected is driven by the rotary valve shaft to rotate by taking the rotary shaft with the upper end fixedly connected with the lower end cover as the center, and an internal closed cavity is not formed under the action that the second sealing ring is tightly attached to the inner wall of the valve body, so that the ball valve is not blocked in the use process, the inner wall of the valve body is not damaged, and the service life of the ball valve is prolonged.
2. According to the utility model, the sealing performance of the ball valve in the use process is ensured through the composite use of the two first sealing rings and the third sealing rings which are made of rubber and the second sealing ring which is made of carbon steel on the upper end cover and the lower end cover of the valve cover, so that the problems that the forward sealing zero leakage and the reverse sealing performance are difficult to ensure when the pipeline pressure is high are solved.
Drawings
FIG. 1 is a perspective view of a semi-ball valve with a novel composite seal structure according to the utility model;
FIG. 2 is an exploded view of a hemispherical valve with a novel composite seal structure according to the present utility model;
FIG. 3 is a cross-sectional view of a valve body of a semi-sphere valve with a novel composite sealing structure;
Fig. 4 is an enlarged view at a in fig. 2.
Legend description:
1. Valve seat, 2, valve body, 21, second screw hole, 22, fourth screw hole, 3, valve cover, 31, first screw hole, 32, first nut, 33, first sealing ring, 34, sleeve, 4, valve shaft, 5, valve clack, 51, second sealing ring, 52, through hole, 6, lower end cover, 61, third screw hole, 62, second nut, 63, third sealing ring, 7, rotating shaft, 8, flange.
Detailed Description
Referring to figures 1-4, the hemispherical valve with the novel composite sealing structure comprises a valve seat 1, a valve body 2 is fixedly connected in the middle of the upper end of the valve seat 1, a valve cover 3 is arranged at the upper end of the valve body 2, a valve shaft 4 is arranged at the upper end of the valve cover 3, a valve flap 5 is fixedly connected to the lower end of the valve shaft 4, a first sealing ring 33 is fixedly connected to the lower end of the valve cover 3, a second sealing ring 51 is fixedly connected to the right end of the valve flap 5, when the flow rate of liquid is controlled, the valve shaft 4 is screwed, the valve shaft 4 slides inside a sleeve 34 on the valve cover 3, a rotating shaft 7 which drives the valve flap 5 fixedly connected to the lower end is rotated by taking a rotating shaft 7 fixedly connected to the upper end of the lower end cover 6 as a circle center, at the moment, the right side of the second sealing ring 51 which is made of carbon steel and fixedly connected to the right end of the valve flap 5 is in sliding fit with the inner wall of the valve body 2, so that a closed space is formed between the valve flap 5 and the inner wall of the valve body 2 is ensured, the use of the valve flap is not blocked, the inner structure of the valve body 2 is not damaged, the service life of the valve is prolonged, a lower end of the valve cover 6 is fixedly connected to the lower end of the valve, a rotating shaft 7 is fixedly connected to the valve seat 6, a rotating shaft 7 is fixedly connected to the lower end of the valve cover 6, a rotating shaft 6 is fixedly connected to the rotating shaft 6, a rotating shaft 6 is fixedly arranged, a rotating end 6, a lower end is connected to the lower end of the valve body 6, a threaded hole is fixedly connected to the valve seat 6 and a threaded hole is fixedly connected to the left end of the inner flange 6, and a threaded hole is fixedly connected to the left end of the valve seat 8.
The four sides of the upper end of the valve cover 3 are provided with first threaded holes 31, the inner sides of the first threaded holes 31 are in threaded connection with first nuts 32, four corners of the upper end of the valve body 2 are provided with second threaded holes 21, the inner sides of the second threaded holes 21 are in threaded connection with first nuts 32, the upper end of the valve cover 3 is fixedly connected with a sleeve 34, the inner sides of the sleeve 34 are in sliding fit with the valve shaft 4, the lower end of the valve clack 5 is provided with a through hole 52, the inner sides of the through hole 52 are in rotating fit with the upper end of the rotating shaft 7, the lower end of the valve body 2 is provided with a fourth threaded hole 22, the inner sides of the fourth threaded holes 22 are in rotating fit with the upper end of the second nut 62, the first sealing ring 33 and the third sealing ring 63 are made of rubber, at this time, the lower end cover 6 is removed through the rotating fit between the inner sides of the second nut 62 and the third threaded holes 61 and the fourth threaded holes 22, the third sealing ring 63 is taken out to check whether the valve clack 5 is damaged, and the valve cover 3 is removed through the rotating fit between the inner sides of the first threaded holes 31 and the inner sides of the second threaded holes 21, and the first sealing ring 33 and the third sealing ring 63 are damaged, and the first sealing ring 33 and the third sealing ring 51 are made of the sealing ring 51, and the sealing ring 1 is made of the sealing ring 51 when the sealing ring is damaged.
The working principle is that the flanges 8 fixedly connected with the left end and the right end of the valve seat 1 are arranged on an external water pipe, when the flow rate of liquid is controlled, the valve shaft 4 is screwed, the valve shaft 4 slides on the inner side of the sleeve 34 on the valve cover 3, the valve clack 5 fixedly connected with the lower end of the valve shaft is driven to rotate by taking the rotating shaft 7 fixedly connected with the upper end of the lower end cover 6 as the center of a circle, at the moment, the valve clack 5 is provided with the right side of the second sealing ring 51 made of carbon steel fixedly connected with the right end of the valve clack and the inner wall of the valve body 2 in a sliding fit manner, so that a closed space can not be formed between the valve clack 5 and the inner wall of the valve body 2, the use of the valve clack is not blocked, the inner structure of the valve body 2 is not damaged, the service life of the valve body is prolonged, the inner structure of the valve is required to be checked and maintained, at the moment, the rotating fit between the second nut 62 and the inner sides of the third threaded hole 61 and the fourth threaded hole 22 is driven, the lower end cover 6 is taken off, at the moment, the rotating shaft 7 is taken out, the valve clack 5 is not limited, the third sealing ring 63 is taken out to check whether the valve is damaged, the valve clack is damaged, the valve cover is formed by the rotating fit between the first nut 32 and the inner side of the first threaded hole 31 and the inner side of the second threaded hole 21, the inner side is not damaged, and the first sealing ring 33 is used, and the sealing ring 33 is completely, and the sealing ring is not damaged, and the sealing ring is used.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420491832.7U CN222255113U (en) | 2024-03-14 | 2024-03-14 | A semi-ball valve with a new composite sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420491832.7U CN222255113U (en) | 2024-03-14 | 2024-03-14 | A semi-ball valve with a new composite sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222255113U true CN222255113U (en) | 2024-12-27 |
Family
ID=94001323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420491832.7U Active CN222255113U (en) | 2024-03-14 | 2024-03-14 | A semi-ball valve with a new composite sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222255113U (en) |
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2024
- 2024-03-14 CN CN202420491832.7U patent/CN222255113U/en active Active
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