CN220816625U - Vacuum ball valve - Google Patents
Vacuum ball valve Download PDFInfo
- Publication number
- CN220816625U CN220816625U CN202322704488.3U CN202322704488U CN220816625U CN 220816625 U CN220816625 U CN 220816625U CN 202322704488 U CN202322704488 U CN 202322704488U CN 220816625 U CN220816625 U CN 220816625U
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- valve
- sealing
- valve rod
- sealing sleeve
- annular groove
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Abstract
The utility model discloses a vacuum ball valve, which comprises a valve body, a valve rod and a valve ball, wherein a mounting hole is formed in the valve body, a sealing sleeve is fixedly and hermetically connected to the mounting hole, the valve rod is rotatably mounted in the sealing sleeve, a round hole is formed in the top of the valve ball, a first sealing ring is arranged between the round hole and the sealing sleeve, a second sealing ring is arranged between the lower end of the sealing sleeve and the lower end of the valve rod, a sealing filler assembly is arranged between the upper end of the sealing sleeve and the upper end of the valve rod, a key groove is formed in the center of the round hole, and the key groove is in key connection with a key block arranged on the lower end face of the valve rod. According to the utility model, the sealing sleeve which is fixedly connected with the valve body in a sealing way is arranged outside the valve rod, and the sealing ring is arranged between the valve rod and the valve ball, so that the tightness between the valve rod and the valve body is improved, the valve can bear larger pressure without leakage of the valve rod and the sealing sleeve, and the service life of a product is prolonged.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a vacuum ball valve.
Background
The vacuum ball valve is a ball valve which has working pressure lower than standard atmospheric pressure, is sealed by a ball surface, can be used in a vacuum state and a low-pressure state and can be installed at any position. The vacuum ball valve is generally connected to a foreline or rough evacuation system of the vacuum apparatus, and can be used for conveying gas or liquid medium, or can be used as a release valve. The vacuum ball valve is widely used in petroleum, chemical industry, mine, construction, instrument and meter manufacturing industry, has good performance of being not easy to leak and being capable of accurately controlling flow. When the valve rod is operated, the sealing ring arranged between the valve rod and the valve body is easy to wear, so that the tightness is damaged, the vacuum ball valve is leaked when the pressure difference is overlarge, and the service life of the vacuum ball valve is shortened.
Disclosure of utility model
The utility model is to solve the problems of the prior art and provide a vacuum ball valve, wherein a sealing ring is arranged between a valve rod and a valve ball, and can bear larger pressure without leakage.
The utility model solves the technical problems by adopting the technical scheme that: the utility model provides a vacuum ball valve, includes valve body, valve rod and valve ball, has seted up the mounting hole on the valve body, fixedly connected with sealing sleeve on the mounting hole, the interior rotation installation valve rod of sealing sleeve section of thick bamboo, the valve ball top is equipped with the round hole, be equipped with first sealing washer between round hole and the sealing sleeve, be equipped with the second sealing washer between sealing sleeve's lower extreme and the lower extreme of valve rod, be equipped with sealed packing subassembly between sealing sleeve's upper end and the upper end of valve rod, the center of round hole is equipped with the keyway, and the keyway carries out key connection with the keypiece that sets up on the valve rod lower extreme face.
Further perfecting, the round hole and the sealing sleeve are respectively provided with a first annular groove and a second annular groove, a first sealing ring is fixedly installed between the first annular groove and the second annular groove, and a V-shaped annular groove is arranged on the upper side of the first sealing ring.
Further perfecting, the lower end of the sealing sleeve is provided with a third annular groove for installing the second sealing ring, and a thrust bearing is arranged between the third annular groove and the second sealing ring.
Further perfecting, the sealing packing assembly comprises a gland, a packing body and an elastic corrugated sleeve, wherein the gland is in threaded connection with the sealing sleeve, the packing body is arranged below the gland, and the elastic corrugated sleeve is arranged inside the packing body.
The beneficial effects of the utility model are as follows: according to the vacuum ball valve, the sealing sleeve which is fixedly connected with the valve body in a sealing way is arranged outside the valve rod, and the sealing ring is arranged between the valve rod and the valve ball, so that the sealing property between the valve rod and the valve body is improved, the valve can bear larger pressure without leakage of the valve rod and the sealing sleeve, and the service life of a product is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an enlarged schematic view of a partial structure in fig. 1.
Reference numerals illustrate: 1. valve body, 2, valve rod, 3, valve ball, 4, the mounting hole, 5, sealing sleeve, 6, round hole, 7, first sealing washer, 8, second sealing washer, 9, keyway, 10, key piece, 11, first annular, 12, second annular, 13, V type annular, 14, third annular, 15, thrust bearing, 16, gland, 17, packing body, 18, elasticity ripple cover.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
Referring to fig. 1-2: the vacuum ball valve comprises a valve body 1, a valve rod 2 and a valve ball 3, wherein a mounting hole 4 is formed in the valve body 1, a sealing sleeve 5 is fixedly and hermetically connected to the mounting hole 4, the valve rod 2 is rotationally mounted in the sealing sleeve 5, a round hole 6 is formed in the top of the valve ball 3, a first sealing ring 7 is arranged between the round hole 6 and the sealing sleeve 5, a second sealing ring 8 is arranged between the lower end of the sealing sleeve 5 and the lower end of the valve rod 2, a sealing filler assembly is arranged between the upper end of the sealing sleeve 5 and the upper end of the valve rod 2, a key groove 9 is formed in the center of the round hole 6, and the key groove 9 is in key connection with a key block 10 arranged on the lower end face of the valve rod 2. When the valve rod 2 rotates relative to the sealing sleeve 5, the valve ball 3 can be driven to rotate in the valve body 1 through the cooperation of the key block 10 and the key groove 9, so that the opening and closing functions of the valve are realized. The sealing sleeve 5 can reduce the corrosion of the medium to the valve rod 1, the first sealing ring 7 and the second sealing ring 8 play a double sealing role, the medium in the valve body 1 can be prevented from leaking from reaching a gap between the valve rod 2 and the sealing sleeve 5, the pressure of the medium leakage can be reduced by larger sliding fit between the valve rod 2 and the sealing sleeve 5, the sealing filler assembly can play a role in more effective sealing, and the leakage prevention capability of the valve is improved.
The round hole 6 and the sealing sleeve 5 are respectively provided with a first annular groove 11 and a second annular groove 12, a first sealing ring 7 is fixedly installed between the first annular groove 11 and the second annular groove 12, and a V-shaped annular groove 13 is arranged on the upper side of the first sealing ring 7, so that the deformation of the first sealing ring 7 can be conveniently installed. The lower end of the sealing sleeve 5 is provided with a third annular groove 14 for installing the second sealing ring 8, and a thrust bearing 15 is arranged between the third annular groove 14 and the second sealing ring 8. The thrust bearing 15 serves to reduce the frictional resistance to relative rotation between the seal sleeves 5. The sealing packing assembly comprises a pressing cover 16, a packing body 17 and an elastic corrugated sleeve 18, wherein the pressing cover 16 is in threaded connection with the sealing sleeve 5, the packing body 17 is arranged below the pressing cover 16, and the elastic corrugated sleeve 18 is arranged inside the packing body 17. The gland 16 can squeeze the packing body 17 to realize sealing when being screwed up, and the elastic corrugated sleeve 18 can store energy when being compressed and deformed, and then elastic force is generated to act on the packing body 17, so that the sealing performance and the service life of the packing body 17 are improved.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (4)
1. The utility model provides a vacuum ball valve, includes valve body (1), valve rod (2) and valve ball (3), has seted up mounting hole (4), its characterized in that on valve body (1): the utility model discloses a valve rod, including mounting hole (4), sealing sleeve (5) internal rotation installation valve rod (2), valve ball (3) top is equipped with round hole (6), be equipped with first sealing washer (7) between round hole (6) and sealing sleeve (5), be equipped with second sealing washer (8) between the lower extreme of sealing sleeve (5) and the lower extreme of valve rod (2), be equipped with sealed packing subassembly between the upper end of sealing sleeve (5) and the upper end of valve rod (2), the center of round hole (6) is equipped with keyway (9), and keyway (9) carry out the key connection with keypiece (10) that set up on the lower terminal surface of valve rod (2).
2. The vacuum ball valve of claim 1, wherein: the round hole (6) and the sealing sleeve (5) are respectively provided with a first annular groove (11) and a second annular groove (12), a first sealing ring (7) is fixedly installed between the first annular groove (11) and the second annular groove (12), and a V-shaped annular groove (13) is formed in the upper side of the first sealing ring (7).
3. The vacuum ball valve of claim 1, wherein: the lower end of the sealing sleeve (5) is provided with a third annular groove (14) for installing the second sealing ring (8), and a thrust bearing (15) is arranged between the third annular groove (14) and the second sealing ring (8).
4. The vacuum ball valve of claim 1, wherein: the sealing packing assembly comprises a pressing cover (16), a packing body (17) and an elastic corrugated sleeve (18), wherein the pressing cover (16) is in threaded connection with the sealing sleeve (5), the packing body (17) is arranged below the pressing cover (16), and the elastic corrugated sleeve (18) is arranged inside the packing body (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322704488.3U CN220816625U (en) | 2023-10-09 | 2023-10-09 | Vacuum ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322704488.3U CN220816625U (en) | 2023-10-09 | 2023-10-09 | Vacuum ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816625U true CN220816625U (en) | 2024-04-19 |
Family
ID=90701434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322704488.3U Active CN220816625U (en) | 2023-10-09 | 2023-10-09 | Vacuum ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816625U (en) |
-
2023
- 2023-10-09 CN CN202322704488.3U patent/CN220816625U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |