CN217539817U - Valve lead screw hand wheel subassembly with safety cover - Google Patents
Valve lead screw hand wheel subassembly with safety cover Download PDFInfo
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- CN217539817U CN217539817U CN202123383692.7U CN202123383692U CN217539817U CN 217539817 U CN217539817 U CN 217539817U CN 202123383692 U CN202123383692 U CN 202123383692U CN 217539817 U CN217539817 U CN 217539817U
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- lead screw
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- valve
- hand wheel
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Abstract
The utility model relates to a gas production valve technical field, especially a valve lead screw hand wheel subassembly with safety cover, including the lead screw, threaded connection has the nut on the lead screw, nut outside cover is established and is connected with the hand wheel, can dismantle on the nut and be connected with the protection casing, the setting is sealed at the protection casing top, the lead screw is located part more than the nut all set up in the protection casing. The application a valve lead screw hand wheel subassembly with safety cover, the lead screw is in the part more than the nut all is located in the protection cover, the protection cover top seals and sets up, will through the protection cover the lead screw is located the part more than the nut is kept apart with the outside air, and then effectively reduces the lead screw is in the rate of rustting of the part more than the nut, and then the probability of greatly reduced lead screw upper portion rust cleaning to reduce the maintenance cost of valve.
Description
Technical Field
The utility model relates to a gas production valve technical field, especially a valve lead screw hand wheel subassembly with safety cover.
Background
As shown in fig. 1, in a gas production plant or a gas production station, there are many valves, each of which is provided with a screw rod 1, the screw rod 1 is connected with a nut 2 through a thread, a hand wheel 3 is sleeved on the outer side of the nut 2, and the nut 2 is rotated through the hand wheel 3, so that the nut 2 is matched with the screw rod 1, and the nut 2 can move relative to the screw rod 1 along the axial direction of the screw rod 1, thereby achieving the purpose of opening and closing the valves.
However, the nut 2 is rarely required to move to the maximum stroke relative to the screw rod 1 due to the matching of the nut 2 and the screw rod 1 at each time, so that the upper part of the screw rod 1 cannot be frequently used for one section, the screw rod 1 can rust, when the screw rod is used again, the nut 2 cannot move to the maximum stroke relative to the screw rod 1, rust removal is required at the moment, and trouble and labor are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the problem that one section unable frequent use in lead screw upper portion that exists to prior art can cause it to rust, needs the rust cleaning when leading to reuse, takes trouble hard is provided a valve lead screw hand wheel subassembly with safety cover.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a valve lead screw hand wheel subassembly with safety cover, includes the lead screw, threaded connection has the nut on the lead screw, nut outside cover is established and is connected with the hand wheel, can dismantle on the nut and be connected with the protection cover, the protection cover top seals the setting, the lead screw is located part more than the nut all set up in the protection cover.
A valve lead screw hand wheel subassembly with safety cover, can dismantle on the nut and be connected with the protection casing, the lead screw is located part more than the nut all set up in the protection casing, the cooperation between lead screw and the nut can not be influenced to the protection casing to guarantee the normal work of valve, in the cooperation process between lead screw and nut, perhaps not time spent usually, the lead screw is in part more than the nut all is located in the protection casing, the protection casing top seals the setting, will through the protection casing the lead screw is located part more than the nut is kept apart with the outside air, and then effectively reduces the lead screw is in the rate of rustting of part more than the nut, and then the probability of greatly reduced lead screw upper portion rust cleaning to reduce the maintenance cost of valve.
Preferably, a transparent part is arranged on the side wall of the protective cover, and the transparent part is made of a transparent material. The state of the inner part of the screw rod in the protective cover can be seen through the transparent part to determine whether the derusting operation is needed.
Preferably, a drying agent is arranged in the protective cover, and the protective cover and the nut are detachably connected and cannot be completely sealed, so that the drying agent is arranged in the protective cover, the contact amount of the upper part of the screw rod and moisture in surrounding gas is further reduced, and the rusting rate of the upper part of the screw rod is further slowed down.
Preferably, the protective cover comprises a cover body and a top cover which are detachably connected, and the bottom of the cover body is detachably connected with the nut.
Preferably, a grid structure is connected to the side wall of the cover body, the grid structure is located above the lead screw, and the desiccant is located on the grid structure.
In order to facilitate the placement of the desiccant, the protective cover comprises a cover body and a top cover which are detachably connected, and the desiccant can be conveniently placed on the grid structure by opening the top cover.
Preferably, the edge of the grid structure is connected with the side wall of the cover body along the periphery.
Preferably, the cover and the cap are threadedly connected.
Preferably, the protection casing with nut threaded connection, convenient dismantlement.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. a valve lead screw hand wheel subassembly with safety cover, can dismantle on the nut and be connected with the protection casing, the lead screw is located part more than the nut all set up in the protection casing, the cooperation between lead screw and the nut can not be influenced to the protection casing to guarantee the normal work of valve, in the cooperation process between lead screw and nut, perhaps not time spent usually, the lead screw is in part more than the nut all is located in the protection casing, the protection casing top seals the setting, will through the protection casing the lead screw is located part more than the nut is kept apart with the outside air, and then effectively reduces the lead screw is in the rate of rustting of part more than the nut, and then the probability of greatly reduced lead screw upper portion rust cleaning to reduce the maintenance cost of valve.
2. The application a valve lead screw hand wheel subassembly with safety cover, can see the state that the lead screw is located the protection casing internal part through the transparence portion to confirm whether need the rust cleaning operation.
3. The application a valve lead screw hand wheel subassembly with safety cover, because the protection casing with the nut is for dismantling to be connected, can not sealed completely, so set up the drier in the protection casing, further reduce the contact volume of moisture in lead screw upper portion and the surrounding gas, and then slow down the rate of rustting on lead screw upper portion.
4. The application a valve lead screw hand wheel subassembly with safety cover, because the protection casing with the nut is for dismantling the connection, can not sealed completely, so set up the drier in the protection casing, further reduce the contact volume of moisture in lead screw upper portion and the surrounding gas, and then slow down the rate of rustting on lead screw upper portion.
Drawings
Fig. 1 is a schematic top view of a structure of a lead screw, a nut and a hand wheel of a valve in the prior art.
Fig. 2 is a longitudinal section schematic view of a valve screw handwheel assembly with a protective cover of the present invention.
The mark in the figure is: 1-a screw rod; 2-a nut; 3, a hand wheel; 4-a protective cover; 5-a drying agent; 6-a grid structure; 7-a cover body; 8-top cover.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1 and 2, the valve lead screw hand wheel assembly with protection cover described in this embodiment includes a lead screw 1, a nut 2 is connected to the lead screw 1 through a thread, a hand wheel 3 is connected to the nut 2 outside cover, a protection cover 4 is detachably connected to the nut 2, the top of the protection cover 4 is sealed, the lead screw 1 is located the part above the nut 2 is arranged in the protection cover 4, a transparent part is arranged on the side wall of the protection cover 4, and the transparent part is made of a transparent material, such as transparent plastic or glass. The state of the inner part of the lead screw 1 in the shield 4 can be seen through the transparent part to determine whether the rust removing operation is required.
Specifically, the protection casing 4 with 2 threaded connection or the joint of nut, the convenient dismantlement.
On the basis, in a further preferable mode, as the protective cover 4 is detachably connected with the nut 2 and cannot be completely sealed, the drying agent 5 is arranged in the protective cover 4, the contact amount of the upper part of the screw rod 1 and moisture in surrounding gas is further reduced, the rusting rate of the upper part of the screw rod 1 is further slowed down, and the drying agent 5 can be selected from a neutral drying agent or an alkaline drying agent.
Specifically, the side wall of the cover body 7 is connected with a grid structure 6, the drying agent 5 is located on the grid structure 6, and the grid structure 6 is located above the lead screw 1 and does not interfere with the lead screw 1.
In order to facilitate the placement of the drying agent 5, the protective cover 4 comprises a cover body 7 and a top cover 8 which are detachably connected, the bottom of the cover body 7 is detachably connected with the nut 2, namely, the drying agent 5 is positioned between the grid structure 6 and the top cover 8, and when the protective cover is used, the drying agent 5 can be conveniently placed on the grid structure 6 by opening the top cover 8.
Specifically, the cover body 7 and the top cover 8 are connected in a threaded or clamping manner.
In practice, the cover 7 may be made of transparent plastic.
In order to ensure that the grid structure 6 is stable and durable, the edge of the grid structure 6 is connected with the side wall of the cover body 7 for a circle, and a steel mesh plate or a steel wire mesh is preferably selected for the grid structure 6.
The beneficial effects of this embodiment: a valve lead screw hand wheel subassembly with safety cover, nut 2 is gone up to dismantle and is connected with protection casing 4, lead screw 1 is located the part more than the nut all set up in the protection casing 4, protection casing 4 can not influence the cooperation between lead screw 1 and the nut 2 to guarantee the normal work of valve, at the cooperation in-process between lead screw 1 and the nut 2, perhaps not the time spent usually, lead screw 1 is in the part more than the nut 2 all is located in the protection casing 4, 4 tops of protection casing seal and set up, will through protection casing 4 lead screw 1 is located the part more than the nut 2 is kept apart with the outside air, and then effectively reduces lead screw 1 is in the rate of rustting of the part more than the nut 2, and then the probability of the derusting on 1 upper portion of greatly reduced lead screw, with the maintenance cost that reduces the valve.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a valve lead screw hand wheel subassembly with safety cover, includes lead screw (1), threaded connection has nut (2) on lead screw (1), nut (2) outside cover is established and is connected with hand wheel (3), its characterized in that, can dismantle on nut (2) and be connected with protection cover (4), protection cover (4) top seals the setting, lead screw (1) are located the part more than nut (2) all set up in protection cover (4).
2. The valve screw handwheel assembly with the protective cover is characterized in that a transparent part is arranged on the side wall of the protective cover (4), and the transparent part is made of transparent materials.
3. The valve stem screw hand wheel assembly with protective cover according to claim 1, characterized in that a desiccant (5) is provided in the protective cover (4).
4. A valve screw handwheel assembly with a protective cover according to claim 3, wherein the protective cover (4) comprises a cover body (7) and a top cover (8) which are detachably connected, and the bottom of the cover body (7) is detachably connected with the nut (2).
5. The valve screw hand wheel assembly with the protective cover according to claim 4, characterized in that a grid structure (6) is connected to the side wall of the cover body (7), the grid structure (6) is located above the screw (1), and the desiccant (5) is located on the grid structure (6).
6. Valve screw handwheel assembly with protective cover according to claim 5, characterized in that the edges of the grid structure (6) are connected all around to the side walls of the cover (7).
7. Valve screw handwheel assembly with protective cover according to any of claims 4 to 6, characterized in that the cover (7) and the cover (8) are screwed together.
8. Valve screw handwheel assembly with protective cover according to any of claims 1 to 6, characterized in that the protective cover (4) is screwed to the nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123383692.7U CN217539817U (en) | 2021-12-29 | 2021-12-29 | Valve lead screw hand wheel subassembly with safety cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123383692.7U CN217539817U (en) | 2021-12-29 | 2021-12-29 | Valve lead screw hand wheel subassembly with safety cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539817U true CN217539817U (en) | 2022-10-04 |
Family
ID=83425984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123383692.7U Active CN217539817U (en) | 2021-12-29 | 2021-12-29 | Valve lead screw hand wheel subassembly with safety cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217539817U (en) |
-
2021
- 2021-12-29 CN CN202123383692.7U patent/CN217539817U/en active Active
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