CN215568349U - Valve rod of stop valve - Google Patents
Valve rod of stop valve Download PDFInfo
- Publication number
- CN215568349U CN215568349U CN202121566643.4U CN202121566643U CN215568349U CN 215568349 U CN215568349 U CN 215568349U CN 202121566643 U CN202121566643 U CN 202121566643U CN 215568349 U CN215568349 U CN 215568349U
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- China
- Prior art keywords
- rod
- valve
- connecting rod
- valve clack
- stop valve
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Abstract
The utility model discloses a stop valve rod, which comprises a main rod body, a hand wheel fixing rod, a sliding rod, a threaded rod and a valve clack connecting rod, wherein the hand wheel fixing rod, the sliding rod, the main rod body and the valve clack connecting rod are sequentially connected from top to bottom, a frosting area is arranged on the hand wheel fixing rod, a limit baffle is arranged at the joint of the threaded rod and the main rod body in a surrounding mode, the valve clack connecting rod is V-shaped, a press sealing mechanism is arranged around the top of the valve rod connecting rod in a surrounding mode, and the press sealing mechanism is arranged below the main rod body and attached to the main rod body. This novel pressure seal mechanism that has add, this pressure seal mechanism can play sealed effect in the junction of valve clack and valve clack, has effectively reduced the probability of valve rod and valve clack junction gas leakage, and then has ensured the sealed effect of stop valve.
Description
Technical Field
The utility model relates to a valve rod, in particular to a valve rod of a stop valve.
Background
The opening and closing part of the stop valve is a plug-shaped valve clack, and the sealing of the stop valve is realized by applying pressure to the valve clack in the axial direction through a valve rod, so that the sealing surface of the valve clack is tightly attached to the sealing surface of a valve seat, and further, the leakage of a medium along a gap between the sealing surfaces is prevented. However, the stop valve that sees on the market at present, for convenient maintenance, valve rod and valve clack are the equipment as an organic whole, and this makes and to have the clearance between valve rod and the valve clack, and then can influence the sealed effect of stop valve, consequently, need provide one kind and can play the stop valve rod of good sealed effect in valve rod and valve clack junction urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a valve rod of a stop valve.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a stop valve rod, includes the king-post, and it still includes hand wheel dead lever, slide bar, threaded rod, valve clack connecting rod, and hand wheel dead lever, slide bar, the king-post, valve clack connecting rod top-down connect gradually, are equipped with the frosting area on the hand wheel dead lever, and the threaded rod is equipped with limit baffle with the linking department of the king-post body is established to enclose, and the valve clack connecting rod is the V form, and the top of valve rod connecting rod encloses all around and is equipped with the pressure seal mechanism, and the pressure seal mechanism is in the below of the king-post body and laminate mutually with the king-post.
Furthermore, the bottom end side wall of the main rod body is an arc-shaped body.
Furthermore, the press sealing mechanism comprises a pressing ring and a sealing gasket, the pressing ring is fixedly sleeved on the valve clack connecting rod, a groove is formed in the bottom of the pressing ring, a spring is fixedly arranged in the groove, and the sealing gasket is located below the pressing ring and connected with the spring.
Furthermore, the sealing gasket is composed of a sleeve body and a connecting convex strip which are integrally formed, the sleeve body penetrates through the valve clack connecting rod, and the connecting convex strip is plugged into the groove and connected with the spring.
Furthermore, the slide bar has a mounting groove along the circumferential direction on the side wall, and the mounting groove is located the top position of the slide bar.
Further, a sealing sleeve is arranged in the mounting groove.
Furthermore, a plurality of anti-skidding salient points are formed on the surface of the sealing sleeve.
The utility model discloses a valve rod of a stop valve, wherein a pressure sealing mechanism is additionally arranged at a valve clack connecting rod, and the pressure sealing mechanism can play a sealing role at the connecting part of a valve clack and the valve rod, so that the probability of air leakage at the connecting part of the valve rod and the valve clack is effectively reduced, and the sealing effect of the stop valve is further ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a schematic structural view of the gasket of fig. 2.
In the figure: 1. a hand wheel fixing rod; 2. a slide bar; 3. a threaded rod; 4. a limit baffle; 5. a main rod body; 6. a valve clack connecting rod; 7. a press sealing mechanism; 8. a sanding area; 9. mounting grooves; 10. a seal ring; 11. an arc-shaped body; 71. pressing a ring; 72. a groove; 73. a spring; 74. a gasket; 741. a sleeve body; 742. and connecting convex strips.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A stop valve rod comprises a main rod body 5, a hand wheel fixing rod 1, a sliding rod 2, a threaded rod 3 and a valve clack connecting rod 6, wherein as shown in figure 1, the hand wheel fixing rod 1, the sliding rod 2, the main rod body 5 and the valve clack connecting rod 6 are sequentially connected from top to bottom; wherein, hand wheel dead lever 1 is used for linking firmly the hand wheel, and hand wheel dead lever 1 is the hexagonal rod body form and rivets with the hand wheel, for improving the stability of hand wheel dead lever 1 and hand wheel connection, is equipped with dull polish district 8 on hand wheel dead lever 1.
The surface of the sliding rod 2 is smooth so that the valve rod can move up and down conveniently, an installation groove 9 is formed in the side wall of the sliding rod 2 along the circumferential direction, and the installation groove 9 is located at the position, close to the top, of the sliding rod 2 and used for installing a compression ring and sealing packing; be provided with seal cover 10 in mounting groove 9 to further improve leakproofness, the surface of seal cover 10 is formed with a plurality of antiskid salient point, and antiskid salient point has increased frictional force, can weaken the relative movement of clamping ring, sealing filler.
The threaded rod 3 is matched with internal threads arranged in the stop valve, the valve is opened when the valve rod moves upwards, and the valve is closed when the valve rod moves downwards; in order to avoid the phenomenon of wire shedding caused by excessive upward movement of the valve rod, a limit baffle plate 4 is arranged at the joint of the threaded rod 3 and the main rod body 5 in an enclosing manner.
The king-rod body 5 is arranged in the inner cavity of the stop valve, the bottom end of the king-rod body 5 is fixedly provided with a valve clack connecting rod 6, and the valve clack connecting rod 6 is used for fixedly mounting the valve clack. As shown in fig. 1, the valve flap connecting rod 6 is V-shaped, and the press sealing mechanism 7 is disposed around the top of the valve rod connecting rod 6, the press sealing mechanism 7 is disposed below the main rod body 5 and attached to the main rod body 5, and in order to reduce the contact friction between the main rod body 5 and the press sealing mechanism 7, as shown in fig. 2, the bottom end side wall of the main rod body 5 is an arc-shaped body 11.
The pressure seal mechanism 7 that sets up can play sealed effect in the junction of valve clack and valve rod, has effectively reduced the probability of valve rod and valve clack junction gas leakage, and then has ensured the sealed effect of stop valve. As shown in fig. 2, the press sealing mechanism 7 has the following specific structure: the press sealing mechanism 7 comprises a pressing ring 71 and a sealing gasket 74, the pressing ring 71 is fixedly sleeved on the valve clack connecting rod 6, the sealing gasket 74 is positioned below the pressing ring 71, the pressing ring 71 is used for supporting the sealing gasket 74, and the pressing ring 71 can also play a role in rigid sealing; the bottom of the pressing ring 71 is provided with a groove 72, a spring 73 is fixedly arranged in the groove 72, and a sealing gasket 74 is connected with the spring 73. After the valve clack is assembled on the valve clack connecting rod 6, the top of the valve clack can prop against the sealing gasket 7, and meanwhile, under the tension action of the spring 73, the sealing gasket 7 is tightly sealed on the top of the valve clack, so that the function of sealing a connecting gap between the valve clack and the valve clack connecting rod 6 is achieved.
In order to make the gasket 7 fully perform the sealing function, the structure of the gasket is as shown in fig. 3, the gasket 74 is composed of a sleeve 741 and a connecting protrusion 742, the sleeve 741 passes through the valve flap connecting rod 6 and is sleeved on the valve flap, the sleeve 741 wraps the top of the valve flap, and the sealing effect is better. The coupling rib 742 is inserted into the groove 72 and coupled to the spring 73, and the gap between the pressing ring 71 and the gasket 74 is sealed by the coupling rib 742.
Therefore, for the stop valve rod disclosed by the utility model, the hand wheel fixing rod is provided with the frosting area, so that the connection stability of the hand wheel fixing rod and the hand wheel is improved; a limit baffle is arranged to prevent the threaded rod from falling off; meanwhile, a pressure sealing mechanism is additionally arranged, a sealing effect is achieved at the joint of the valve clack and the top of the valve clack connecting rod, the probability of air leakage at the joint of the valve rod and the valve clack is effectively reduced, and the sealing effect of the stop valve is further ensured.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.
Claims (7)
1. A stop valve stem, comprising a stem body (5), characterized in that: it still includes hand wheel dead lever (1), slide bar (2), threaded rod (3), valve clack connecting rod (6), hand wheel dead lever (1), slide bar (2), the mobile jib body (5), valve clack connecting rod (6) top-down connect gradually, be equipped with dull polish district (8) on hand wheel dead lever (1), threaded rod (3) are established with linking department of the mobile jib body (5) and are enclosed and be equipped with limit baffle (4), valve clack connecting rod (6) are the V form, and enclose all around at the top of valve rod connecting rod (6) and be equipped with pressure seal mechanism (7), and pressure seal mechanism (7) are in the below of the mobile jib body (5) and laminate mutually with the mobile jib body (5).
2. The stop valve stem of claim 1, wherein: the side wall of the bottom end of the main rod body (5) is an arc-shaped body (11).
3. The stop valve stem of claim 2, wherein: the pressure sealing mechanism (7) comprises a pressing ring (71) and a sealing gasket (74), the pressing ring (71) is fixedly sleeved on the valve clack connecting rod (6), a groove (72) is formed in the bottom of the pressing ring (71), a spring (73) is fixedly arranged in the groove (72), and the sealing gasket (74) is located below the pressing ring (71) and connected with the spring (73).
4. The stop valve stem of claim 3, wherein: the sealing gasket (74) is composed of a sleeve body (741) and a connecting convex strip (742) which are integrally formed, the sleeve body (741) penetrates through the valve clack connecting rod (6), and the connecting convex strip (742) is plugged into the groove (72) and connected with the spring (73).
5. A stop valve stem according to claim 1 or 4, wherein: the side wall of the sliding rod (2) is provided with a mounting groove (9) along the circumferential direction, and the mounting groove (9) is located at the top of the sliding rod (2).
6. The stop valve stem of claim 5, wherein: and a sealing sleeve (10) is arranged in the mounting groove (9).
7. The stop valve stem of claim 6, wherein: and a plurality of anti-skidding salient points are formed on the surface of the sealing sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121566643.4U CN215568349U (en) | 2021-07-09 | 2021-07-09 | Valve rod of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121566643.4U CN215568349U (en) | 2021-07-09 | 2021-07-09 | Valve rod of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215568349U true CN215568349U (en) | 2022-01-18 |
Family
ID=79824800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121566643.4U Active CN215568349U (en) | 2021-07-09 | 2021-07-09 | Valve rod of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215568349U (en) |
-
2021
- 2021-07-09 CN CN202121566643.4U patent/CN215568349U/en active Active
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