CN108506515B - Ball valve with spiral guide rail - Google Patents
Ball valve with spiral guide rail Download PDFInfo
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- CN108506515B CN108506515B CN201810631181.6A CN201810631181A CN108506515B CN 108506515 B CN108506515 B CN 108506515B CN 201810631181 A CN201810631181 A CN 201810631181A CN 108506515 B CN108506515 B CN 108506515B
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- valve rod
- valve
- head
- groove
- ball
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a ball valve with a spiral guide rail, which is characterized in that: the upper part of the lower valve rod is provided with a ball head, the lower rotary head is provided with a lower inner hole, the ball head is arranged in the lower inner hole, the upper valve rod part above the upper rotary head is provided with a guide rail with a spiral structure, the upper part of the valve body is provided with a guide groove with a spiral structure matched with the guide rail, the connecting part of the upper valve rod and the upper rotary head is provided with a clamping device, the upper rotary head is internally provided with an opening and closing clamping groove matched with the clamping device, when the upper valve rod is moved downwards and the clamping device is moved, the hemispherical body is driven to rotate anticlockwise and outwards relative to the axis of the upper valve rod by taking the spherical center of the ball head as the center, the upper rotary head is fixedly provided with a circular pipe with a pipe structure, the pipe wall is provided with a transverse groove, the transverse groove is arranged at the position of the transverse groove, when the upper valve rod and the clamping device are moved, the, Long service life.
Description
Technical Field
The invention relates to a ball valve, in particular to a ball valve with a spiral guide rail.
Background
Present ball valve mainly includes valve body, disk seat, spheroid and goes up the valve stem, and the valve body inner chamber is arranged in to the spheroid, is equipped with in the spheroid can with the communicating runner of valve body inner chamber, and the disk seat is made by non-metallic plastic material, can form sealedly with the spheroid surface, and the spheroid is used for fluidic opening and closing with the disk seat cooperation by last valve stem drive and do 90 degrees rotary motion around the ball valve axis, and its shortcoming lies in: in the opening and closing process of the ball body, the sealing surface of the valve seat and the sealing surface of the ball body generate friction, and the sealing surface of the valve seat is easy to damage, so that the valve is easy to leak, and the service life is short.
Disclosure of Invention
Aiming at the technical defects in the prior art, the invention provides the ball valve with the spiral guide rail, which has the advantages of no friction between the sealing surface of the valve seat and the sealing surface of the ball body, long service life and high safety.
The invention is realized by the following technical scheme:
this take spiral guide rail ball valve includes: the valve comprises a valve body, a valve seat, a hemisphere, a filler, a gland, a connecting support, an upper valve rod, a lower valve rod and a lower end cover, wherein the upper end of the middle part of the valve body is provided with a connecting flange and a filler groove, the filler is fixedly arranged at the filler groove by the gland, the connecting support is arranged at the connecting flange by a standard fastener, the hemisphere is arranged in an inner cavity of the valve body, the upper part of the hemisphere is fixedly provided with an upper rotating head, the lower part of the hemisphere is fixedly provided with a lower rotating head, the upper end of the upper valve rod is provided with a key groove connected with an external driving device, the lower end of the upper valve rod penetrates through the filler groove to extend into the inner cavity of the valve body to be connected with the upper rotating head, the valve seat is made of a non-metallic plastic material, the axis of the valve seat is consistent with the horizontal axis of the, lower valve rod has the same axis with last valve rod, and terminal surface is connected its characterized in that with lower end cover up end under the lower valve rod: the upper part of the lower valve rod is provided with a ball head, the lower rotary head is provided with a lower inner hole, the inner surface of the lower inner hole is provided with a spherical arc with the diameter consistent with the outer diameter of the ball head, the ball head is arranged in the lower inner hole, the outer surface of the ball head is matched with the spherical arc, the upper valve rod part above the upper rotary head is provided with a guide rail with a spiral structure, the upper part of the valve body is provided with a guide groove with a spiral structure matched with the guide rail, the connecting part of the upper valve rod and the upper rotary head is provided with a clamping device, the upper rotary head is internally provided with an opening and closing clamping groove matched with the clamping device, when the upper valve rod and the clamping device are moved downwards, the traction device drives the hemisphere and rotates anticlockwise and outwards relative to the axis of the upper valve rod by taking the ball center of the ball head as the center, the upper rotary head is fixedly provided with a round pipe with a tubular structure, the pipe wall is provided with a transverse groove, the bottom of the inner cavity of the valve body is provided with a limiting groove which has 90-degree radian and is shaped like a sector arc, and the lower end of the lower rotary head is provided with a pin shaft which extends into the limiting groove.
Furthermore, the cross section of the clamping device is of a square structure, the cross section of the opening and closing clamping groove is of a square groove structure, and an upward angle is formed between the groove bottom surface of the opening and closing clamping groove and the axis of the upper valve rod.
Furthermore, the traction device comprises a traction head and an extension spring, the traction head is in an I-shaped structure and is transversely clamped at the transverse groove, one end of the extension spring is connected with the valve body, and the other end of the extension spring is connected with the traction head.
Further, the card means is a flat key.
Further, the valve seat material is polytetrafluoroethylene.
Further, the material of the extension spring is stainless steel.
The invention has the advantages that: in the process of opening or closing the ball valve, the sealing surface of the valve seat and the sealing surface of the ball body cannot generate friction, and the ball valve has the advantages of reducing abrasion and prolonging service life.
Drawings
FIG. 1 is a schematic structural diagram of a ball valve with a spiral guide rail according to the present invention.
Detailed Description
As shown in fig. 1, the ball valve with the spiral guide rail comprises: the ball valve comprises a valve body 1, a valve seat 2, a hemisphere 3, packing 9, a gland 10, a connecting support 11, an upper valve rod 6, a lower valve rod 4 and a lower end cover 17, wherein the upper end of the middle part of the valve body 1 is provided with a connecting flange and a packing groove, the packing is fixedly arranged at the packing groove by the gland 10, the connecting support 11 is arranged at the connecting flange by a standard fastener, the hemisphere 3 is arranged in the inner cavity of the valve body 1, the upper part of the hemisphere 3 is fixedly provided with an upper rotating head 13, the lower part of the hemisphere 3 is fixedly provided with a lower rotating head 13, the upper end of the upper valve rod 6 is provided with a key groove connected with an external driving device, the lower end of the upper valve rod 6 penetrates through the packing groove to extend into the inner cavity of the valve body 1 to be connected with the upper rotating head 13, the valve seat 2 is made of a non-metal plastic material, the axis of the valve seat 2 is consistent with the horizontal, the lower valve rod 4 is arranged at the lower part of the valve body 1, the lower valve rod 4 and the upper valve rod 6 have the same axis, the lower end surface of the lower valve rod 4 is connected with the upper end surface of the lower end cover 17, the upper part of the lower valve rod 4 is provided with a ball head, the lower rotary head 14 is provided with a lower inner hole, the inner surface of the lower inner hole is provided with a spherical arc with the diameter consistent with the outer diameter of the ball head, the ball head is arranged in the lower inner hole, the outer surface of the ball head is matched with the spherical arc, the upper valve rod 6 part above the upper rotary head 13 is provided with a guide rail 7 with a spiral structure, the upper part of the valve body 1 is provided with a guide groove with a spiral structure matched with the guide rail 7, the connecting part of the upper valve rod 6 and the upper rotary head 13 is provided with a clamping device 5, an opening and closing clamping groove 18 matched with the clamping device 5 is arranged inside the upper rotary head, the upper end of the upper rotary head 13 is fixedly provided with a round pipe with a pipe structure, the pipe wall is provided with a transverse groove, the transverse groove is provided with a traction device 12, when the upper valve rod 6 and the clamping device 5 move upwards, the traction device 11 drives the hemisphere 3 and takes the sphere center of the ball head as the center to rotate and draw close the axis of the upper valve rod 6 clockwise, the bottom of the inner cavity of the valve body 1 is provided with a limiting groove with the radian of 90 degrees and forming an arc shape, the lower end of the lower rotary head 14 is provided with a pin shaft 15, and the pin shaft 15 extends into the limiting groove.
The cross section of the clamping device 5 is of a square structure, the cross section of the opening and closing clamping groove 18 is of a square groove structure, and an upward angle is formed between the bottom surface of the opening and closing clamping groove 18 and the axis of the upper valve rod 6.
The traction device 18 comprises a traction head and an extension spring, the traction head is of an I-shaped structure and is transversely clamped at the transverse groove, one end of the extension spring is connected with the valve body 1, and the other end of the extension spring is connected with the traction head.
The card means 5 is a flat key.
This valve is opened from the closed condition, valve rod on the clockwise rotation, drive hemisphere clockwise rotation, at this in-process, go up the valve rod rebound under the effect of guide rail, the clamping device is followed valve rod rebound, simultaneously under draw gear's effect, the hemisphere uses the centre of sphere of bulb to become clockwise upward valve rod axis rotation as the center and draws close, the sealed face of spheroid breaks away from with the sealed face of disk seat mutually, along with the continuation clockwise rotation of last valve rod, the corresponding increase in distance between the sealed face of spheroid and the sealed face of valve, the aperture of valve is bigger and bigger simultaneously, open until completely.
This valve is closed from the open mode, valve rod on the anticlockwise rotation, drive hemisphere anticlockwise rotation, at this in-process, go up the valve rod downstream under the effect of guide rail, the clamp is put and is followed valve rod downstream, it becomes anticlockwise outside rotation to drive the hemisphere to use the centre of sphere of bulb as the relative valve rod axis of going up of center, along with the anticlockwise rotation of last valve rod, the distance between the sealed face of spheroid and the sealed face of valve seat is more and more littleer, the aperture of valve is more and more littleer simultaneously, when the sealed face of spheroid cooperatees with the sealed face of valve seat and forms sealedly, this valve is closed completely.
In the process of opening or closing the ball valve, the sealing surface of the valve seat and the sealing surface of the valve clack cannot generate friction, and the ball valve has the advantages of reducing abrasion and prolonging the service life.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A ball valve with a screw-type guide rail, comprising: the valve comprises a valve body, a valve seat, a hemisphere, a filler, a gland, a connecting support, an upper valve rod, a lower valve rod and a lower end cover, wherein the upper end of the middle part of the valve body is provided with a connecting flange and a filler groove, the filler is fixedly arranged at the filler groove by the gland, the connecting support is arranged at the connecting flange by a standard fastener, the hemisphere is arranged in an inner cavity of the valve body, the upper part of the hemisphere is fixedly provided with an upper rotating head, the lower part of the hemisphere is fixedly provided with a lower rotating head, the upper end of the upper valve rod is provided with a key groove connected with an external driving device, the lower end of the upper valve rod penetrates through the filler groove to extend into the inner cavity of the valve body to be connected with the upper rotating head, the valve seat is made of a non-metallic plastic material, the axis of the valve seat is consistent with the horizontal axis of the, lower valve rod has the same axis with last valve rod, and terminal surface is connected its characterized in that with lower end cover up end under the lower valve rod: the upper part of the lower valve rod is provided with a ball head, the lower rotary head is provided with a lower inner hole, the inner surface of the lower inner hole is provided with a spherical arc with the diameter consistent with the outer diameter of the ball head, the ball head is arranged in the lower inner hole, the outer surface of the ball head is matched with the spherical arc, the upper valve rod part above the upper rotary head is provided with a guide rail in a spiral structure, the upper part of the valve body is provided with a guide groove in a spiral structure matched with the guide rail, the connecting part of the upper valve rod and the upper rotary head is provided with a clamping device, the upper rotary head is internally provided with an opening and closing clamping groove matched with the clamping device, when the upper valve rod and the clamping device are moved downwards, the hemispherical body is driven and rotates anticlockwise and outwards relative to the axis of the upper valve rod by taking the ball center of the ball head as the center, the upper rotary head is fixedly provided with a circular pipe in a tubular structure, the pipe wall is provided with a transverse groove, the traction, the valve body inner chamber bottom is equipped with the radian and is 90 and become fan arc's spacing groove, and lower round pin axle is equipped with to lower turn-round head lower extreme, and this round pin axle stretches into the spacing inslot, the cross section that clamps the device is square structure, the cross section of opening and close the draw-in groove is square groove structure, should open and close the tank bottom surface of draw-in groove and last valve rod axis and form an angle oblique angle up, draw gear includes traction head and extension spring, and the traction head becomes the I-shaped structure to horizontal card is in transverse groove department, and extension spring one end is connected with the valve body, and the other end is connected with the traction head, it is flat key to clamp.
2. The ball valve with the spiral guide rail according to claim 1, wherein: the valve seat is made of polytetrafluoroethylene.
3. The ball valve with the spiral guide rail according to claim 1, wherein: the material of the extension spring is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631181.6A CN108506515B (en) | 2018-06-19 | 2018-06-19 | Ball valve with spiral guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631181.6A CN108506515B (en) | 2018-06-19 | 2018-06-19 | Ball valve with spiral guide rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108506515A CN108506515A (en) | 2018-09-07 |
| CN108506515B true CN108506515B (en) | 2020-06-26 |
Family
ID=63403593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810631181.6A Active CN108506515B (en) | 2018-06-19 | 2018-06-19 | Ball valve with spiral guide rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108506515B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1135677A (en) * | 1979-10-04 | 1982-11-16 | Michael A. Calvert | Ball valves |
| CN1295202A (en) * | 1999-11-04 | 2001-05-16 | 符世朝 | Butterfly valve with sealing plane |
| CN201513590U (en) * | 2009-07-30 | 2010-06-23 | 精工阀门有限公司 | Connecting rod type expansion ball hard sealing ball valve |
| CN201526701U (en) * | 2009-11-18 | 2010-07-14 | 苏林波 | Oligodynamic light-opened track spherical valve |
| CN103775666A (en) * | 2013-12-30 | 2014-05-07 | 宁波市天基隆智控技术有限公司 | Gate valve |
| CN106763856A (en) * | 2017-02-22 | 2017-05-31 | 李祥庆 | One kind is without abradable seal plug valve |
| WO2017139063A1 (en) * | 2016-02-11 | 2017-08-17 | Baker Hughes Incorporated | Improvement to force multiplyer used to actuate a ball valve |
| CN107477204A (en) * | 2017-10-07 | 2017-12-15 | 济南得德环保科技有限公司 | A kind of dome valve for ultra dense phase Ultra-Low Speed air-transport system |
-
2018
- 2018-06-19 CN CN201810631181.6A patent/CN108506515B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1135677A (en) * | 1979-10-04 | 1982-11-16 | Michael A. Calvert | Ball valves |
| CN1295202A (en) * | 1999-11-04 | 2001-05-16 | 符世朝 | Butterfly valve with sealing plane |
| CN201513590U (en) * | 2009-07-30 | 2010-06-23 | 精工阀门有限公司 | Connecting rod type expansion ball hard sealing ball valve |
| CN201526701U (en) * | 2009-11-18 | 2010-07-14 | 苏林波 | Oligodynamic light-opened track spherical valve |
| CN103775666A (en) * | 2013-12-30 | 2014-05-07 | 宁波市天基隆智控技术有限公司 | Gate valve |
| WO2017139063A1 (en) * | 2016-02-11 | 2017-08-17 | Baker Hughes Incorporated | Improvement to force multiplyer used to actuate a ball valve |
| CN106763856A (en) * | 2017-02-22 | 2017-05-31 | 李祥庆 | One kind is without abradable seal plug valve |
| CN107477204A (en) * | 2017-10-07 | 2017-12-15 | 济南得德环保科技有限公司 | A kind of dome valve for ultra dense phase Ultra-Low Speed air-transport system |
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| Publication number | Publication date |
|---|---|
| CN108506515A (en) | 2018-09-07 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200305 Address after: 201617 Shanghai city Songjiang District town Shihudang TAHUI Road No. 698 Applicant after: Shanghai Yahe Valve Completion Co., Ltd. Address before: Jin Yuan Lu Yu Gen Cun Yan tou Zhen Yongjia County of Wenzhou City, Zhejiang Province, No. 5 325115 Applicant before: Zhang Xinfeng |
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| GR01 | Patent grant |