CN212360804U - Low-torque pressure sealing stop valve - Google Patents
Low-torque pressure sealing stop valve Download PDFInfo
- Publication number
- CN212360804U CN212360804U CN202020939112.4U CN202020939112U CN212360804U CN 212360804 U CN212360804 U CN 212360804U CN 202020939112 U CN202020939112 U CN 202020939112U CN 212360804 U CN212360804 U CN 212360804U
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- valve rod
- support
- valve
- bearing
- nut
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Abstract
The utility model discloses a low moment of torsion pressure seal stop valve solves the big problem that leads to the moment of torsion big between valve rod and support. The valve rod is movably penetrated in the support and penetrates into the valve body, a hand wheel is further mounted at the top of the valve rod, a valve rod nut is arranged between the valve rod and the top of the support, the bottom of the valve rod nut is connected with the support through a bearing, the bearing is an axial contact bearing and limited in the support, the top of the valve rod nut is fixedly connected with the hand wheel, and the valve rod nut is sleeved outside the valve rod and is in threaded fit with the valve rod; the fixed cover is equipped with the solid fixed splint on the valve rod, the support is including the guide arm that is used for the fixed splint lift of direction. Bear the axial load of valve rod lift in-process through the bearing, reduced the friction of original axial direction, reduced the moment of torsion when opening and close by a wide margin, make the stop valve open and close more smoothly.
Description
Technical Field
The utility model belongs to the technical field of the stop valve and specifically relates to a low moment of torsion pressure seal stop valve.
Background
At present, the stop valves at home and abroad are of various types, the stop valves are widely used in water supply and drainage pipelines and industrial control pipelines, and the stop valves have the characteristics of simple structure, easiness in maintenance, good sealing performance and the like, but the stop valves generally have the problem that the tops of valve rods and supports are usually in threaded fit, in the rotating, lifting and moving process of the valve rods, axial loads of the valve rods act on the supports, certain friction resistance is formed between the valve rods and the supports, the opening and closing torque is increased, and particularly in the high-temperature and high-pressure stop valves, the opening and closing torque of the valves is large and the opening and closing difficulty is difficult.
Disclosure of Invention
The utility model aims at: in order to overcome prior art's defect, the utility model provides a low moment of torsion pressure seal stop valve solves the big problem that leads to the moment of torsion big between valve rod and support.
The technical scheme of the utility model: the valve rod is movably penetrated in the support and penetrates into the valve body, a hand wheel is further mounted at the top of the valve rod, a valve rod nut is arranged between the valve rod and the top of the support, the bottom of the valve rod nut is connected with the support through a bearing, the bearing is an axial contact bearing and limited in the support, the top of the valve rod nut is fixedly connected with the hand wheel, and the valve rod nut is sleeved outside the valve rod and is in threaded fit with the valve rod; the fixed cover is equipped with the solid fixed splint on the valve rod, the support is including the guide arm that is used for the fixed splint lift of direction.
The utility model discloses a further setting: the top of bearing is installed and is used for spacing bearing's bearing gland, bearing gland is fixed in on the support.
The utility model discloses a further setting again: the valve rod nut is provided with two bearings, and the bottom of the valve rod nut is provided with a ring boss which is positioned between the two bearings.
The utility model discloses a still further set up: and a locking nut is arranged on the top of the valve rod nut in a threaded manner.
By adopting the technical scheme, the axial load in the lifting process of the valve rod is borne by the bearing, the friction in the original axial direction is reduced, the torque in the opening and closing process is greatly reduced, and the pressure sealing stop valve is opened and closed more smoothly.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
the valve comprises a valve rod 1, a support 2, a valve body 3, a hand wheel 4, a valve rod nut 5, a bearing 6, a ring boss 51, a bearing gland 7, a locking nut 8, a fixed clamp plate 9 and a guide arm 21.
Detailed Description
As shown in fig. 1 and 2, the low-torque pressure sealing stop valve comprises a valve rod 1, a support 2 and a valve body 3, the support 2 is fixedly installed on the valve body 3, the valve rod 1 is movably penetrated in the support 2 and penetrates into the valve body 3, a hand wheel 4 is further installed at the top of the valve rod 1, a valve rod nut 5 is arranged between the top of the valve rod 1 and the top of the support 2, the bottom of the valve rod nut 5 is connected with the support 2 through a bearing 6, the bearing 6 is axially contacted with the bearing and the bearing 6 is limited and arranged in the support 2, the top of the valve rod nut 5 is fixedly connected with the hand wheel 4, and the valve rod nut 5 is sleeved outside the valve rod 1 and is in threaded. The bearings 6 are two in number, the stem nut 5 has a ring boss 51 at the bottom, the ring boss 51 is located between the two bearings 6, and the bearings 6 actually fit with the ring boss 51. The fixed cover is equipped with solid fixed splint 9 on the valve rod 1, and support 2 is including guide arm 21, and gu fixed splint 9 uses guide arm 21 as the track, and guide arm 21 is used for leading solid fixed splint 9 to go up and down when valve rod 1 goes up and down, can restrict valve rod 1 and rotate along with valve rod nut 5, makes valve rod 1 only do the lift action. When the valve needs to be opened and closed, the hand wheel 4 rotates to drive the valve rod nut 5 to rotate, the driving valve rod 1 is driven to ascend and descend under the guiding of the fixed clamping plate 9, the bearing 6 bears axial load due to the matching of the ring boss 51 and the bearing 6, so that the torque during opening and closing can be greatly reduced, and the hand wheel 4 is rotated to be more easily and smoothly.
Bearing gland 7 that is used for spacing bearing 6 is installed at the top of bearing 6, and bearing gland 7 is fixed in on the support 2, bearing gland 7 and 2 screw-thread fit of support, during operation fixed mounting, bearing gland 7 can dismantle when needing to maintain.
And a locking nut 8 is arranged on the top of the valve rod nut 5 in a threaded manner, and the locking nut 8 is used for fixing the hand wheel 4.
Claims (4)
1. The utility model provides a low moment of torsion pressure seal stop valve, including valve rod, support and valve body, on the support fixed mounting valve body, the valve rod activity runs through in the support and penetrates to the valve body in, the hand wheel, its characterized in that are still installed at the valve rod top: a valve rod nut is arranged between the valve rod and the top of the support, the bottom of the valve rod nut is connected with the support through a bearing, the bearing is an axial contact bearing and is limited in the support, the top of the valve rod nut is fixedly connected with a hand wheel, and the valve rod nut is sleeved outside the valve rod and is in threaded fit with the valve rod; the fixed cover is equipped with the solid fixed splint on the valve rod, the support is including the guide arm that is used for the fixed splint lift of direction.
2. The low torque pressure sealing shut-off valve of claim 1, wherein: and a bearing gland used for limiting the bearing is installed at the top of the bearing and is fixed on the support.
3. The low-torque pressure-sealing shut-off valve according to claim 1 or 2, wherein: the valve rod nut is provided with two bearings, and the bottom of the valve rod nut is provided with a ring boss which is positioned between the two bearings.
4. The low-torque pressure-sealing shut-off valve according to claim 1 or 2, wherein: and a locking nut is arranged on the top of the valve rod nut in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939112.4U CN212360804U (en) | 2020-05-28 | 2020-05-28 | Low-torque pressure sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939112.4U CN212360804U (en) | 2020-05-28 | 2020-05-28 | Low-torque pressure sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212360804U true CN212360804U (en) | 2021-01-15 |
Family
ID=74155643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020939112.4U Active CN212360804U (en) | 2020-05-28 | 2020-05-28 | Low-torque pressure sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212360804U (en) |
-
2020
- 2020-05-28 CN CN202020939112.4U patent/CN212360804U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |