CN218913807U - Track ball valve guide pin structure - Google Patents
Track ball valve guide pin structure Download PDFInfo
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- CN218913807U CN218913807U CN202222843434.0U CN202222843434U CN218913807U CN 218913807 U CN218913807 U CN 218913807U CN 202222843434 U CN202222843434 U CN 202222843434U CN 218913807 U CN218913807 U CN 218913807U
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- guide pin
- track ball
- gland
- guide
- ball valve
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Abstract
The utility model relates to a guide pin structure of a track ball valve, which comprises a valve cover, a valve rod, a split guide pin, a bearing, a guide column and a gland, wherein the valve rod is provided with a guide rail groove, the valve cover is provided with a stepped hole and is in compression joint with the bearing, the guide pin comprises the guide column and the gland, the guide column penetrates through the bearing, the gland is in sealing compression joint with the valve cover, the gland is in compression joint with the guide column, and the guide column is in rotary connection with the guide rail groove when the valve rod rotates. The guide pin structure of the track ball valve has the advantages of improving operability, prolonging service life, improving sealing performance and the like.
Description
Technical Field
The utility model relates to the technical field of track ball valves, in particular to a track ball valve guide pin structure.
Background
At present, the lifting track ball valve is a ball valve which is driven in a lifting way through the matching of a valve rod with an S-shaped guide rail groove and a guide pin, drives a valve core to rotate to realize opening and closing, has no friction on a switch and can realize forced sealing. Due to their unique properties they are suitable for applications such as: key positions in petrochemical system devices such as oil refining hydrocracking, ethylene oxide, ethylene, dehydrogenation, polypropylene, polyethylene, polycarbonate, isomerism, gas delivery metering pry and the like. The special position has a severe working condition, and has higher technical requirements on the operation and sealing performance of the valve.
For this reason we have developed a track ball valve guide pin structure to solve the above problems.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a guide pin structure of a track ball valve, which has the advantages of improving operability, prolonging service life, improving sealing performance and the like.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a track ball valve guide pin structure, includes a valve gap, a valve rod and a split type guide pin, the valve rod is equipped with the guide rail groove, the valve gap is equipped with the shoulder hole to crimping a bearing, the guide pin includes a guide post and a gland, the guide post passes the bearing sets up, the gland with the sealed crimping of valve gap, the gland with the guide post crimping, when the valve rod is rotatory, the guide post with the guide rail groove rotates to be connected.
Preferably, a step through hole is arranged at the center of the guide post, and a cylindrical head is arranged at one end of the guide post.
Preferably, one end of the stepped through hole abuts against the gland, and the other end abuts against the guide rail groove.
Preferably, the stepped bore includes a first stepped bore, the first stepped bore being crimped with the bearing.
Preferably, the stepped hole comprises a second stepped hole, and the second stepped hole is respectively in pressure connection with the cylindrical head and the bearing.
Preferably, the stepped hole comprises a third stepped hole, and the third stepped hole is in pressure connection with the gland through a sealing ring.
Preferably, the gland is provided with an annular groove, and the annular groove is sleeved with an O-shaped ring, and the O-shaped ring and the second step Kong Yajie.
Preferably, a plurality of first threaded holes are formed around the stepped hole.
Preferably, the gland is provided with a plurality of second threaded holes, and the second threaded holes are fixedly connected with the first threaded holes through fasteners.
Preferably, at least two guide posts are arranged on the circumference of the valve cover.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the guide pin structure of the track ball valve increases the operation performance and the service life of the valve; the sealing performance of the guide pin is enhanced through the double sealing structure, so that leakage is effectively prevented; the guide post is in rolling connection with the valve cover, so that the guide post has important significance in a structure that the guide pin is in contact with a medium, abrasion is reduced, operability is improved, and adjustment is facilitated; because the guide post is always stressed on the side, and is very small or even not stressed in the axial direction, the static seal between the gland and the valve cover is well ensured without being influenced by the guide post, and the guide post can freely rotate in the wear-resistant bearing, so that rolling friction is generated between the guide post and the valve rod when the valve is opened and closed, the abrasion of the guide post is reduced, and the operation and the usability of the valve are improved.
Drawings
Fig. 1 is a schematic structural view of a guide pin structure of a track ball valve.
Fig. 2 is an enlarged view of the utility model at a in fig. 1.
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
In the attached drawings 1 and 2, a guiding pin structure of a track ball valve comprises a valve cover 2, a valve rod 1 and a split guiding pin, wherein the valve rod 1 vertically penetrates through the center of the valve cover 2, and the guiding pin is in compression joint with the valve cover 2 in the circumferential direction. At least two guide posts 4 are arranged on the circumference of the valve cover 2.
The valve rod 1 is provided with a guide rail groove 11, the valve cover 2 is provided with a stepped hole 21 and is in compression joint with a bearing 5, the guide pin comprises a guide post 4 and a gland 3, the guide post 4 penetrates through the bearing 5 to be arranged, the gland 3 is in sealing compression joint with the valve cover 2, the gland 3 is in compression joint with the guide post 4, and when the valve rod 1 rotates, the guide post 4 is in rotary connection with the guide rail groove 11.
When the valve is opened and closed on the working condition, the valve rod 1 of the track ball valve moves up and down, the side edges of the guide posts 4 on the two sides of the valve rod 1 are rubbed and extruded by the valve rod grooves, and the guide posts 4 can roll in the guide rail grooves 11 and drive the valve rod to rotate by 90 degrees due to the fact that the guide posts 4 rotate in the bearings 5 and are limited axially and have proper gaps; the separation of the gland 3 from the guide post 4 makes the seal between the gland 3 and the valve cap 2 more reliable without being affected by the guide post 4.
A step through hole 41 is arranged at the center of the guide post 4, one end of the step through hole 41 is abutted with the gland 3, and the other end of the step through hole 41 is abutted with the guide rail groove 11. A cylindrical head 42 is provided at one end of the guide post 4.
The stepped hole 21 includes a first stepped hole 211, a second stepped hole 212, and a third stepped hole 213 in this order. The first stepped hole 211 is crimped with the bearing 5. The second stepped hole 212 is crimped with the cylindrical head 42 and the bearing 5, respectively. The third stepped hole 213 is pressure-contacted with the pressing cover 3 through the sealing ring 61.
The gland 3 is provided with a plurality of second screw holes 31, and a plurality of first screw holes 22 are provided around the stepped hole 21. The gland 3 is provided with a ring groove 32, the ring groove 32 is sleeved with an O-shaped ring 62, and the O-shaped ring 62 is in pressure connection with the second step hole 212. The second threaded hole 31 is fixedly connected with the first threaded hole 22 through the fastener 7.
The guide post 4 is a surface hardening metal cylinder with a pressure balance small hole in the middle, the bearing 5 is firstly arranged in the valve cover 2, then the guide post 4 is arranged in the bearing 5 and extends into the guide rail groove 11 of the valve rod 1, then the sealing ring 61 and the O-shaped ring 62 are arranged on the gland 3, the sealing ring and the gland 3 are together arranged in the valve cover 2, and finally the fastener 7 is arranged through the bolt hole of the gland 3.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (10)
1. A track ball valve guide pin structure which characterized in that: including valve gap (2), valve rod (1) and split type guide pin of an organic whole, valve rod (1) are equipped with guide rail groove (11), valve gap (2) are equipped with shoulder hole (21) to crimping a bearing (5), the guide pin includes a guide post (4) and a gland (3), guide post (4) pass bearing (5) set up, gland (3) with valve gap (2) seal crimping, gland (3) with guide post (4) crimping, when valve rod (1) is rotatory, guide post (4) with guide rail groove (11) rotate and are connected.
2. The guide pin structure of the track ball valve according to claim 1, wherein a stepped through hole (41) is provided at a central position of the guide post (4), and a cylindrical head (42) is provided at one end.
3. The track ball valve guide pin structure according to claim 2, wherein one end of the stepped through hole (41) abuts against the gland (3) and the other end abuts against the guide rail groove (11).
4. The track ball valve guide pin structure according to claim 2, wherein the stepped hole (21) includes a first stepped hole (211), and the first stepped hole (211) is in pressure contact with the bearing (5).
5. The track ball valve guide pin structure according to claim 2, wherein the stepped hole (21) comprises a second stepped hole (212), and the second stepped hole (212) is respectively pressed and connected with the cylindrical head (42) and the bearing (5).
6. The track ball valve guide pin structure according to claim 2, wherein the stepped hole (21) includes a third stepped hole (213), and the third stepped hole (213) is crimped with the gland (3) through the seal ring (61).
7. The guide pin structure of the track ball valve according to claim 5, wherein the gland (3) is provided with a ring groove (32), the ring groove (32) is sleeved with an O-ring (62), and the O-ring (62) is in pressure connection with the second step hole (212).
8. The track ball valve guide pin structure according to claim 1, wherein a plurality of first screw holes (22) are provided around the stepped hole (21).
9. The track ball valve guide pin structure according to claim 8, wherein the gland (3) is provided with a plurality of second threaded holes (31), and the second threaded holes (31) are fixedly connected with the first threaded holes (22) through fasteners (7).
10. The track ball valve guide pin structure according to claim 1, wherein at least two guide posts (4) are provided in the circumferential direction of the valve cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222843434.0U CN218913807U (en) | 2022-10-25 | 2022-10-25 | Track ball valve guide pin structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222843434.0U CN218913807U (en) | 2022-10-25 | 2022-10-25 | Track ball valve guide pin structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218913807U true CN218913807U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222843434.0U Active CN218913807U (en) | 2022-10-25 | 2022-10-25 | Track ball valve guide pin structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN218913807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697082A (en) * | 2023-08-07 | 2023-09-05 | 艾坦姆流体控制技术(山东)有限公司 | Pneumatic track ball valve with shock resistance function |
-
2022
- 2022-10-25 CN CN202222843434.0U patent/CN218913807U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697082A (en) * | 2023-08-07 | 2023-09-05 | 艾坦姆流体控制技术(山东)有限公司 | Pneumatic track ball valve with shock resistance function |
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