CN201731102U - Antifriction mechanism of spherical gate valve - Google Patents
Antifriction mechanism of spherical gate valve Download PDFInfo
- Publication number
- CN201731102U CN201731102U CN2010202561597U CN201020256159U CN201731102U CN 201731102 U CN201731102 U CN 201731102U CN 2010202561597 U CN2010202561597 U CN 2010202561597U CN 201020256159 U CN201020256159 U CN 201020256159U CN 201731102 U CN201731102 U CN 201731102U
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- valve
- roller
- valve plate
- hole clipping
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Abstract
The utility model relates to an antifriction mechanism of a spherical gate valve, which mainly resolves technical problems that a valve plate of the existing spherical gate valve and a limiting ring are large in friction force, so that operation torsion of the valve are enlarged and the like. The antifriction mechanism is characterized in that a pin roller which is capable of rolling and matches with a valve plate and a limiting ring is arranged at a joint position between the valve plate and the limiting ring. The antifriction mechanism has the advantages that the pin roller is added between the valve plate and the limiting plate, and when a valve stem drives the valve plate to rotate, the pin roller is in rolling fit with end surfaces of the valve plate and the limiting ring so as to be capable of reducing friction resistance between the valve plate and the limiting ring, thereby reducing operation torsion of the valve and leading the valve to be more labor-saving in opening and closing.
Description
Technical field
The utility model relates to a kind of mechanism that reduces friction, and relates to a kind of antifriction mechanism of sphere gate valve in particular, is mainly used in the sphere gate valve.
Background technique
Existing sphere gate valve mainly comprises the combination valve core that places in the valve plate, this combination valve core is fixedlyed connected with valve rod, described combination valve core includes cone and valve plate, described valve plate places the cone two ends and flexibly connects with cone, for preventing the valve plate upper and lower displacement, influence the sealability of valve, the two ends up and down of valve plate respectively are provided with limited ring in described valve plate, when work, rotate under the active force of cone at valve rod, thereby drive the rotation of valve plate, realize the keying of valve, and respectively be provided with limited ring in two ends up and down at valve plate, and just can avoid the upper and lower displacement of valve plate, valve plate can only be rotated with the rotation of cone, work as throttle down like this, just can guarantee the sealing of valve; Adopt this structure, though can guarantee the sealability of valve, because cone is in the process that drives the valve plate rotation, the frictional force of valve plate and limited ring is bigger, causes the operation moment of torsion increasing of valve, thereby influences the keying of valve.
Summary of the invention
For the frictional force of the valve plate that solves existing sphere gate valve and limited ring is big, the technical problems such as operation moment of torsion increasing of valve have been caused; The utility model provides a kind of antifriction mechanism of sphere gate valve, and this mechanism can effectively reduce the frictional force of valve plate and limited ring, reduces the operation moment of torsion of valve.
For solving above technical problem, the technological scheme that the utility model is taked is a kind of antifriction mechanism of sphere gate valve, it includes the combination valve core that places in the valve plate, this combination valve core is fixedlyed connected with valve rod, the valve plate that described combination valve core includes cone and places the cone both sides and flexibly connect with cone, the two ends up and down of valve plate are equipped with the limited ring of restriction valve plate upper and lower displacement in described valve plate; It is characterized in that the described valve plate and the junction point of limited ring are provided with roller rotatable and that cooperate with valve plate and limited ring rolling.
Further, described valve plate lower end is provided with a plurality of roller hole clippings that are 3/4ths circle shapes, the diameter of this roller hole clipping greater than the diameter of roller and the roller hole clipping degree of depth greater than roller length, described roller places in this roller hole clipping, be provided with the baffle plate that roller is limited in the roller hole clipping in the end of roller hole clipping, this baffle plate is fixedlyed connected with valve plate.
Further, being positioned at evenly distributedly on all sidewalls of limited ring of valve plate upper end has a plurality of roller hole clippings that are 3/4ths circle shapes, and greater than roller length, described roller places in the roller hole clipping diameter of this roller hole clipping greater than the diameter of roller and the roller hole clipping degree of depth.
The beneficial effects of the utility model are to be equipped with roller between valve plate and limited ring, when valve rod drives the valve plate rotation, roller rolls with the end face of valve plate and limited ring and cooperates, so just can reduce the surface friction drag between valve plate and the limited ring, thereby reduce the operation moment of torsion of valve, make valve more laborsaving when opening and closing.
Description of drawings
Fig. 1 analyses and observe mounting structure figure for the antifriction mechanism of the utility model embodiment sphere gate valve
Fig. 2 is the sectional structure chart of the utility model embodiment valve plate
Fig. 3 is an A-A place sectional structure chart among Fig. 2
Fig. 4 is the main TV structure figure of the utility model embodiment limited ring
Fig. 5 is the side-looking structural drawing of the utility model embodiment limited ring
Fig. 6 is a B-B place sectional structure chart among Fig. 4
Embodiment
Below in conjunction with accompanying drawing the utility model mode of execution is described further:
As shown in Figure 1, the antifriction mechanism of a kind of sphere gate valve of the utility model, it includes the combination valve core 2 that places in the valve plate 1, this combination valve core 2 is fixedlyed connected with valve rod 3, the valve plate 22 that described combination valve core 2 includes cone 21 and places cone 21 both sides and flexibly connect with cone 21, the two ends up and down of valve plate 22 are equipped with the limited ring 4 that limits valve plate 22 upper and lower displacements described valve plate 1 in; For the valve plate 22 that solves existing sphere gate valve is big with the frictional force of limited ring 4, the technical problems such as operation moment of torsion increasing of valve have been caused; Described valve plate 22 is provided with roller 5 rotatable and that cooperate with valve plate 22 and limited ring 4 rollings with the junction point of limited ring 4; Between valve plate 22 and limited ring 4, be equipped with roller 5, when valve rod 3 drives valve plate 22 rotations, roller 5 rolls with the end face of valve plate 22 and limited ring 4 and cooperates, so just can reduce the surface friction drag between valve plate 22 and the limited ring 3, thereby reduce the operation moment of torsion of valve, make valve more laborsaving when opening and closing.
Shown in Fig. 2, Fig. 3 embodiment, for making things convenient for the installation of roller 5, described valve plate 22 lower ends are provided with a plurality of roller hole clippings 221 that are 3/4ths circle shapes, the diameter of this roller hole clipping 221 greater than the diameter of roller 5 and roller hole clipping 221 degree of depth greater than roller 5 length, described roller 5 places in this roller hole clipping 221, be provided with in the end of roller hole clipping 221 roller 5 is limited in baffle plate 222 in the roller hole clipping 221, this baffle plate 222 is fixedlyed connected with valve plate 22; Adopt this structure, not only can make things convenient for the installation of roller 5 and owing to be subjected to the influence of valve plate 22 deadweight, the relative surface friction drag of surface friction drag of valve plate 22 upper ends and limited ring 4 less than valve plate 22 lower ends and limited ring 4, and roller 5 is installed on valve plate 22 lower ends, just can reduce the surface friction drag of valve plate 22 and limited ring 4 greatly, thereby reduce the open and close torque of valve.
Shown in Fig. 4, Fig. 5, Fig. 6 embodiment, for farthest reducing the surface friction drag of valve plate 22 and its two ends limited ring 4, evenly distributed on all sidewalls of the described limited ring 4 that is positioned at valve plate 22 upper ends have a plurality of roller hole clippings 221 that are 3/4ths circle shapes, greater than roller 5 length, described roller 5 places in the roller hole clipping 221 diameter of this roller hole clipping 221 greater than the diameter of roller 5 and roller hole clipping 221 degree of depth; Many group rollers 5 are set on the limited ring 4 of valve plate 22 upper ends, so just can reduce the surface friction drag of valve plate 22 and its upper end limited ring 4, thereby the surface friction drag when farthest reducing valve opening and closing reduces and operates moment of torsion, the flexibility during the raising valve opening and closing.
The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (3)
1. the antifriction mechanism of a sphere gate valve, it includes the combination valve core that places in the valve body, this combination valve core is fixedlyed connected with valve rod, the valve plate that described combination valve core includes cone and places the cone both sides and flexibly connect with cone, the two ends up and down of valve plate are equipped with the limited ring of restriction valve plate upper and lower displacement in described valve body; It is characterized in that the described valve plate and the junction point of limited ring are provided with roller rotatable and that cooperate with valve plate and limited ring rolling.
2. the antifriction mechanism of a kind of sphere gate valve according to claim 1, it is characterized in that described valve plate lower end is provided with a plurality of roller hole clippings that are 3/4ths circle shapes, the diameter of this roller hole clipping greater than the diameter of roller and the roller hole clipping degree of depth greater than roller length, described roller places in this roller hole clipping, be provided with the baffle plate that roller is limited in the roller hole clipping in the end of roller hole clipping, this baffle plate is fixedlyed connected with valve plate.
3. the antifriction mechanism of a kind of sphere gate valve according to claim 2, it is characterized in that being positioned at and evenly distributed on all sidewalls of limited ring of valve plate upper end a plurality of roller hole clippings that are 3/4ths circle shapes are arranged, greater than roller length, described roller places in the roller hole clipping diameter of this roller hole clipping greater than the diameter of roller and the roller hole clipping degree of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202561597U CN201731102U (en) | 2010-07-03 | 2010-07-03 | Antifriction mechanism of spherical gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202561597U CN201731102U (en) | 2010-07-03 | 2010-07-03 | Antifriction mechanism of spherical gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201731102U true CN201731102U (en) | 2011-02-02 |
Family
ID=43522259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202561597U Expired - Fee Related CN201731102U (en) | 2010-07-03 | 2010-07-03 | Antifriction mechanism of spherical gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201731102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972234A (en) * | 2016-05-03 | 2016-09-28 | 浙江石化阀门有限公司 | Opening type spherical surface sluice valve and special processing technology thereof |
| CN110725969A (en) * | 2019-10-12 | 2020-01-24 | 江苏亿阀股份有限公司 | Low-torque spherical sealing wedge valve |
-
2010
- 2010-07-03 CN CN2010202561597U patent/CN201731102U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972234A (en) * | 2016-05-03 | 2016-09-28 | 浙江石化阀门有限公司 | Opening type spherical surface sluice valve and special processing technology thereof |
| CN105972234B (en) * | 2016-05-03 | 2018-05-04 | 浙江石化阀门有限公司 | Prop open type ball surface gate valve and its special processing process |
| CN108374904A (en) * | 2016-05-03 | 2018-08-07 | 浙江石化阀门有限公司 | A kind of processing technology for processing the roller hole of the upper limit ring of prop open type ball surface gate valve |
| CN108374904B (en) * | 2016-05-03 | 2019-05-17 | 浙江石化阀门有限公司 | It is a kind of for processing the processing technology of the roller hole of the upper limit ring of prop open type ball surface gate valve |
| CN110725969A (en) * | 2019-10-12 | 2020-01-24 | 江苏亿阀股份有限公司 | Low-torque spherical sealing wedge valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20180703 |