CN203309176U - Rail-mounted hard seal ball valve - Google Patents
Rail-mounted hard seal ball valve Download PDFInfo
- Publication number
- CN203309176U CN203309176U CN2013203604875U CN201320360487U CN203309176U CN 203309176 U CN203309176 U CN 203309176U CN 2013203604875 U CN2013203604875 U CN 2013203604875U CN 201320360487 U CN201320360487 U CN 201320360487U CN 203309176 U CN203309176 U CN 203309176U
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- Prior art keywords
- valve
- spheroid
- valve body
- hard seal
- ball
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Abstract
The utility model relates to a rail-mounted hard seal ball valve. The rail-mounted hard seal ball valve comprises a valve body, wherein an inflow channel and an outflow channel are formed in the valve body; a valve cavity is formed between the inflow channel and the outflow channel; a ball body is arranged in the valve cavity; a valve seat is arranged between the ball body and the outflow channel; a valve rod for rotating the ball body is connected to the upper end of the ball body. The rail-mounted hard seal ball valve is characterized in that a guiding slide track is arranged on the valve rod, and comprises a spiral slide track and a lifting slide track; the lifting slide track is arranged at the upper end of the spiral slide track, and communicated with the spiral slide track; a guiding pin is arranged on the valve body; one end of the guiding pin extends into the guiding slide track; an inclined plane is arranged at one end where the valve rod is close to the ball body; the upper end of the inclined plane inclines to the valve seat; a flat level surface is arranged at the lower end of the inclined plane; pin shafts are arranged on the ball body, and are positioned on the two sides of the inclined plane. Through the technical scheme, friction of a sealing surface can not be generated in the opening and closing process of the ball valve, so that the service life of the ball valve is long, and the operating torque is low.
Description
Technical field
The utility model relates to a kind of ball valve, more particularly relates to a kind of rail mounted hard seal ball valve.
Background technique
Ball valve is mainly used in oil, chemical industry, iron and steel, the every field such as metallurgy and electric power, traditional ball valve comprises valve body, valve body is provided with flow channel and flow pass, between flow channel and flow pass, be provided with valve pocket, in valve pocket, be provided with spheroid, between spheroid and flow pass, be provided with valve seat, the spheroid upper end is connected with the valve rod for rotating sphere, so traditional ball valve is to drive by valve rod the opening and closing that spheroid is realized ball valve, ball valve spheroid in the process of opening and closing contacts with sealing surface of seat always, spheroid and valve base sealing surface wear are all very serious, the long-time sealing surface of spheroid and valve seat that uses does not just reach sealing effect, owing between spheroid and valve seat, having frictional force, so ball valve all needs moment of torsion larger in the process of opening and closing.
Summary of the invention
For the deficiency that prior art exists, the utility model provides a kind of rail mounted hard seal ball valve, and its purpose is not affect spheroid when using, ball valve opening and closing the time sealing surface without friction, long service life, the operation moment of torsion is low.
For achieving the above object, the utility model provides following technological scheme: a kind of rail mounted hard seal ball valve, comprise valve body, described valve body is provided with flow channel and flow pass, between flow channel and flow pass, be provided with valve pocket, in described valve pocket, be provided with spheroid, between described spheroid and flow pass, be provided with valve seat, described spheroid upper end is connected with the valve rod for rotating sphere, it is characterized in that: be provided with guide slide on described valve rod, described guide slide comprises spiral slideway and hoistway, described hoistway is arranged on the upper end of spiral slideway and is communicated with spiral slideway, on described valve body, be provided with guide finger, guide finger one end extends in guide slide, described valve rod is set to inclined-plane near the spheroid end, upper end, described inclined-plane tilts to the valve seat direction, lower end, described inclined-plane is provided with flat flat, on described spheroid, be provided with bearing pin, and be arranged on the both sides, inclined-plane.
The beneficial effects of the utility model are: the sealing surface that the valve rod design makes spheroid and valve seat, without friction, has been protected the sealing surface of spheroid and valve seat, thereby has been extended the working life of spheroid and valve seat; Spheroid and sealing surface of seat be without friction, thereby make the very little moment of torsion of valve rod action need.
The utility model further is set to: described spheroid lower end is provided with projection, and the center line of described projection and the center line of valve rod are on same straight line, and the other end of the relative spheroid of described projection is set to sphere, and described sphere and valve pocket are conflicted.
By adopting technique scheme, the spheroid lower end is provided with projection, the center line of projection and valve rod on same straight line, so valve rod when drive spheroid 90-degree rotation, projection can make the spheroid smooth rotation; The other end of the relative spheroid of projection is set to sphere, arranges like this projection is reduced friction when rotating, and also plays simultaneously the effect of sealing, arrange so simple in structure, reasonable in design, convenient processing.
The utility model further is set to: the end that described guide finger extends in guide slide is arranged with roller.
By adopting technique scheme, the setting of roller is in order to reduce the frictional force between guide finger and guide slide, more flexible while making its operation.
The utility model further is set to: described valve body is set to upper valve body and lower valve body, and described lower valve body is provided with opening, and described upper valve body is arranged on the opening on lower valve body, and is connected by screw.
By adopting technique scheme, arranging like this is ball valve to be adopted go up dress formula structure, and upper dress formula structure is in the situation that the pipe-line system pressure release, but, to being contained in the inspection of ball valve direct-on-line and the maintenance on pipeline, reduces production costs.
The accompanying drawing explanation
Fig. 1 is the utility model embodiment sectional structure chart.
Embodiment
As shown in Figure 1, the utility model discloses a kind of rail mounted hard seal ball valve, comprise valve body 1, described valve body 1 is provided with flow channel 121 and flow pass 122, between flow channel 121 and flow pass 122, be provided with valve pocket 123, in described valve pocket 123, be provided with spheroid 2, between described spheroid 2 and flow pass 122, be provided with valve seat 3, described spheroid 2 upper ends are connected with the valve rod 4 for rotating sphere, on described valve rod 4, be provided with guide slide 41, described guide slide 41 comprises spiral slideway 411 and hoistway 412, described hoistway 412 is arranged on the upper end of spiral slideway 411 and is communicated with spiral slideway 411, on described valve body 1, be provided with guide finger 5, guide finger 5 one ends extend in guide slide 41, described valve rod 4 is set to inclined-plane 42 near spheroid 2 ends, 42 upper ends, described inclined-plane tilt to valve seat 3 directions, 42 lower ends, described inclined-plane are provided with flat flat 43, on described spheroid 2, be provided with bearing pin 6, and be arranged on the both sides, inclined-plane, by adopting technique scheme, valve rod 4 designs make the sealing surface of spheroid 2 and valve seat 3 without friction, protected the sealing surface of spheroid 2 with valve seat 3, thereby extended the working life of spheroid 2 and valve seat 3, spheroid 2 and valve seat 3 sealing surfaces are without friction, thereby make the very little moment of torsion of valve rod 4 action need.
The utility model further is set to: described spheroid 2 lower ends are provided with projection 21, the center line of the center line of described projection 21 and valve rod 4 is on same straight line, the other end of described projection 21 relative spheroids 2 is set to sphere, described sphere and valve pocket are conflicted, by adopting technique scheme, spheroid 2 lower ends are provided with projection 21, and the center line of projection 21 and valve rod 4 is on same straight line, so valve rod 4 is when driving spheroid 2 90-degree rotation, projection 21 can make spheroid 2 smooth rotations; The other end of projection 21 relative spheroids 2 is set to sphere, arranges like this projection 21 is reduced friction when rotating, and also plays simultaneously the effect of sealing, arrange so simple in structure, reasonable in design, convenient processing.
The utility model further is set to: the end that described guide finger 5 extends in guide slide 41 is arranged with roller 7, by adopting technique scheme, the setting of roller 7 is in order to reduce the frictional force between guide finger 5 and guide slide 41, more flexible while making its operation.
The utility model further is set to: described valve body 1 is set to upper valve body 11 and lower valve body 12, described lower valve body 12 is provided with opening, described upper valve body 11 is arranged on the opening on lower valve body 12, and connect by screw 8, by adopting technique scheme, arranging like this is to make ball valve adopt upper dress formula structure, and upper dress formula structure is in the situation that the pipe-line system pressure release, but, to being contained in the inspection of ball valve direct-on-line and the maintenance on pipeline, reduce production costs.
Working principle of the present utility model: during valve opening, rotate counterclockwise handwheel 9, band ovable valve stem 4 rises, now guide finger 5 is positioned at 4 of hoistway 412 restriction valve rods and does ascending motion, the inclined-plane 42 of valve rod 4 lower ends coordinates with bearing pin 6, makes spheroid 2 depart from valve seat 3, and sealing surface breaks away from, valve rod 4 continues to rise, guide finger 5 is positioned at spiral slideway 411, makes valve rod 4 make 90 degree and rotates, and at this moment flat flat 43 of valve rod 4 bottoms coordinates with bearing pin 6, after driving spheroid 2 do 90 degree rotations, valve opening, when valve closing, clockwise rotate handwheel 9, valve rod 4 descends, now guide finger 5 is positioned at spiral slideway 411, making valve rod 4 make 90 degree rotates, flat 43 of valve rod 4 lower flat coordinate with bearing pin 6, drive spheroid 2 and do 90 degree rotations, after rotating, spheroid 2 sealing surfaces align sealing surface of seat, valve rod 4 continues to descend, guide finger 5 is positioned at 4 of hoistway 412 restriction valve rods and does descending motion, the inclined-plane 42 of valve rod 4 lower ends coordinates with bearing pin 6, produce wedge power, drive spheroid 2 and compress valve seat 3, valve closing, valve rod 4 still can continue to descend, can continue to apply forced seal power to sealing surface.
Claims (4)
1. rail mounted hard seal ball valve, comprise valve body, described valve body is provided with flow channel and flow pass, between flow channel and flow pass, be provided with valve pocket, in described valve pocket, be provided with spheroid, between described spheroid and flow pass, be provided with valve seat, described spheroid upper end is connected with the valve rod for rotating sphere, it is characterized in that: be provided with guide slide on described valve rod, described guide slide comprises spiral slideway and hoistway, described hoistway is arranged on the upper end of spiral slideway and is communicated with spiral slideway, on described valve body, be provided with guide finger, guide finger one end extends in guide slide, described valve rod is set to inclined-plane near the spheroid end, upper end, described inclined-plane tilts to the valve seat direction, lower end, described inclined-plane is provided with flat flat, on described spheroid, be provided with bearing pin, and be arranged on the both sides, inclined-plane.
2. a kind of rail mounted hard seal ball valve according to claim 1, it is characterized in that: described spheroid lower end is provided with projection, the center line of described projection and the center line of valve rod are on same straight line, and the other end of the relative spheroid of described projection is set to sphere, and described sphere and valve pocket are conflicted.
3. a kind of rail mounted hard seal ball valve according to claim 1 and 2 is characterized in that: the end that described guide finger extends in guide slide is arranged with roller.
4. rail mounted hard seal ball valve according to claim 1, it is characterized in that: described valve body is set to upper valve body and lower valve body, and described lower valve body is provided with opening, and described upper valve body is arranged on the opening on lower valve body, and is connected by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203604875U CN203309176U (en) | 2013-06-20 | 2013-06-20 | Rail-mounted hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203604875U CN203309176U (en) | 2013-06-20 | 2013-06-20 | Rail-mounted hard seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309176U true CN203309176U (en) | 2013-11-27 |
Family
ID=49615389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203604875U Expired - Fee Related CN203309176U (en) | 2013-06-20 | 2013-06-20 | Rail-mounted hard seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309176U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145638A (en) * | 2019-05-10 | 2019-08-20 | 西诺威阀门控制（苏州）有限公司 | A kind of orbit ball valve guiding mechanism |
| CN110242766A (en) * | 2019-07-19 | 2019-09-17 | 成都金陵能源装备有限公司 | The unilateral guide frame of the valve rod of forced seal ball valve |
| CN112728151A (en) * | 2020-12-31 | 2021-04-30 | 五洲阀门股份有限公司 | Ball valve with multiple sealing track structure |
| CN112963645A (en) * | 2021-03-17 | 2021-06-15 | 西南石油大学 | Pipeline corrosion measuring device |
| US11814822B2 (en) | 2018-09-27 | 2023-11-14 | Aalberts Integrated Piping Systems Limited | Plumbing fitting |
-
2013
- 2013-06-20 CN CN2013203604875U patent/CN203309176U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11814822B2 (en) | 2018-09-27 | 2023-11-14 | Aalberts Integrated Piping Systems Limited | Plumbing fitting |
| CN110145638A (en) * | 2019-05-10 | 2019-08-20 | 西诺威阀门控制（苏州）有限公司 | A kind of orbit ball valve guiding mechanism |
| CN110242766A (en) * | 2019-07-19 | 2019-09-17 | 成都金陵能源装备有限公司 | The unilateral guide frame of the valve rod of forced seal ball valve |
| CN110242766B (en) * | 2019-07-19 | 2024-08-23 | 成都金陵能源装备有限公司 | Valve rod unilateral guide structure of forced seal ball valve |
| CN112728151A (en) * | 2020-12-31 | 2021-04-30 | 五洲阀门股份有限公司 | Ball valve with multiple sealing track structure |
| CN112963645A (en) * | 2021-03-17 | 2021-06-15 | 西南石油大学 | Pipeline corrosion measuring device |
| CN112963645B (en) * | 2021-03-17 | 2022-02-01 | 西南石油大学 | Pipeline corrosion measuring device |
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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: 20131127 Termination date: 20190620 |