CN110608297A - Eccentric half ball valve - Google Patents
Eccentric half ball valve Download PDFInfo
- Publication number
- CN110608297A CN110608297A CN201911020683.6A CN201911020683A CN110608297A CN 110608297 A CN110608297 A CN 110608297A CN 201911020683 A CN201911020683 A CN 201911020683A CN 110608297 A CN110608297 A CN 110608297A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- rod
- valve body
- half ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000008602 contraction Effects 0.000 claims abstract description 3
- 210000004907 gland Anatomy 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- 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
- F16K5/0663—Packings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to the technical field of valves, in particular to an eccentric half ball valve which comprises a hollow valve body and a rotatable half ball valve core arranged in the valve body through a valve rod, wherein the half ball valve core is in sealing connection with a valve seat arranged in the hollow valve body, a transmission mechanism used for rotating and lifting the valve rod is arranged at the upper end of the valve rod, an installation groove used for installing the half ball valve core is formed in the lower end of the valve body, a supporting rod embedded in the installation groove is arranged at the lower end of the half ball valve core, a radial inward contraction groove is formed in one end, close to the half ball valve core, of the supporting rod, a straight portion with a square cross section and an inclined portion are arranged at the lower end of the valve rod, the inclined portion is arranged at the upper end of the straight portion and inclines towards. The invention provides an eccentric half ball valve, which solves the problem that the sealing surface of the existing eccentric half ball valve is easy to wear.
Description
Technical Field
The invention relates to the technical field of valves, in particular to an eccentric half ball valve.
Background
In the prior art, for example, CN209146374U discloses a full-bore eccentric half-ball valve, which comprises a valve body, wherein sixteen studs are fixedly connected to the right side of the valve body, a valve cover is arranged on the surface of each stud, a nut is sleeved on the surface of each stud, the left side of each nut is in contact with the valve cover, a duplex stuffing box is arranged at the top of the valve body in a penetrating manner, the top of the duplex stuffing box extends to the top of the valve body and is fixedly connected with a connecting plate, an upper valve rod is arranged at the top of the connecting plate in a penetrating manner, the bottom of the upper valve rod extends to the bottom of the duplex stuffing box and extends to an inner cavity of the valve body, a first connecting block is sleeved at the bottom of the surface of the upper valve rod, the inner wall of the first connecting block is fixedly connected with the upper valve rod, a blocking piece is sleeved at the top of the surface of the upper valve rod and is fixedly connected with the connecting plate, the left bottom fixedly connected with second connecting block of eccentric ball valve, the inside of second connecting block is provided with the bearing, the inner chamber swing joint of bearing has lower valve rod, the bottom of lower valve rod runs through to the bottom of double-screw bolt, top and bottom on eccentric ball valve right side all are provided with the lug, the right side fixedly connected with mounting disc of valve gap, the inner chamber of valve gap is provided with the disk seat, the lug is used with the disk seat cooperation, the mounting hole has been seted up on the right side of mounting disc, the quantity of mounting hole is sixteen, the left side of valve body is provided with the water inlet, the right side of valve gap is provided with the delivery port, water inlet and delivery port intercommunication, the top of connecting plate is provided with the.
This technical scheme discloses the basic structure of current eccentric hemisphere valve, but wherein has certain defect: 1. the machining and mounting precision between the eccentric ball valve and the valve seat is high; 2 when the valve is opened and closed, the eccentric ball valve and the valve seat have larger abrasion, and the service life is shorter.
Disclosure of Invention
Therefore, the invention provides an eccentric half ball valve, which solves the problem that the existing eccentric half ball valve is easy to wear.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides an eccentric hemisphere valve, includes hollow valve body and installs the rotatable hemisphere case in the valve body through the valve rod, hemisphere case with install disk seat in the valve body is sealing connection, install the upper end of valve rod and be used for rotating and go up and down the drive mechanism of valve rod, the mounting groove that is used for installing hemisphere case is offered to the lower extreme of valve body, hemisphere case's lower extreme is provided with to inlay and puts branch in the mounting groove, the one end that is close to hemisphere case on the branch is provided with radial inward take-up groove, the lower extreme of valve rod is equipped with the cross-section and is square straight portion and rake, the rake is located straight portion's upper end and to disk seat direction slope, straight portion wears to establish hemisphere case's upper end.
Preferably, the valve rod is provided with a guide groove for limiting the rotation angle of the valve rod to be kept between 0 and 90 degrees, a guide pin matched with the guide groove penetrates through the valve body, and when the valve is in a closed state, the guide pin is positioned at the opening end of the guide groove, so that the rotation angle of the valve rod is defined to be 0 degree; when the valve is in a full-open state, the guide pin is abutted against the bottom of the guide groove, and the rotation angle of the valve rod is defined to be 90 degrees at the moment.
Preferably, the transmission mechanism comprises a bearing, a bearing gland, a transmission nut and a hand wheel fixed on the transmission nut, which are sequentially arranged on the upper end of the valve rod from bottom to top.
Preferably, the upper end of the hemispherical valve core is provided with a positioning pin matched with the inclined part on the valve rod.
Preferably, the bottom of branch is provided with along the bellying of radial setting, be provided with the edge in the mounting groove branch radially is provided with reset spring, reset spring orientation the direction installation of disk seat, it is used for holding to have seted up in the mounting groove the arc embedded groove of bellying, when the valve is in the closure state, the bellying is contradicted the left side and the compression of mounting groove reset spring, when the valve is in the open mode, the bellying is embedded and is put in the arc embedded groove.
Preferably, a packing and a packing gland for sealing are arranged between the valve rod and the valve body.
By adopting the technical scheme, the invention has the beneficial effects that:
the valve adopts the structure of the inclined part and the support rod with the radial inner contraction groove, so that the hemispherical valve core can slightly incline towards the direction of the valve seat under the action of the inclined part and the support rod when the valve is opened and closed, the hemispherical valve core horizontally leaves the sealing surface of the valve seat firstly when the valve is opened and then rotates under the guidance of the guide groove, and vice versa when the valve is closed, so that the friction between the hemispherical valve core and the valve seat when the valve is opened and closed is avoided, the service life of the hemispherical valve core is prolonged, meanwhile, the resistance when the valve is opened and closed is reduced because the valve is opened and closed without friction, the opening and closing are smoother, and the opening and closing torque.
Drawings
FIG. 1 is a schematic cross-sectional view illustrating a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
FIG. 4 is a schematic view of a structure of a guide slot and a guide pin according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a first supporting rod and a first mounting groove in a matching state according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a second supporting rod and a mounting groove in a matching state in the embodiment of the invention.
Detailed Description
The following detailed description will be provided for the embodiments of the present invention with reference to specific embodiments, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Example one
Referring to fig. 1 to 4, an eccentric half ball valve includes a hollow valve body 1 and a rotatable half ball valve core 3 installed in the valve body 1 through a valve rod 2, the half ball valve core 3 is in sealed connection with a valve seat 11 installed in the valve body 1, a transmission mechanism 4 for rotating and lifting the valve rod is installed at the upper end of the valve rod 2, and specifically, the transmission mechanism 4 includes a bearing 41, a bearing gland 42, a transmission nut 43 and a hand wheel 44 fixed on the transmission nut 43, which are installed at the upper end of the valve rod 2 from bottom to top in sequence; a packing 12 and a packing gland 13 for sealing are arranged between the valve rod 2 and the valve body 1;
the lower end of the valve body 1 is provided with a mounting groove 14 for mounting a hemispherical valve core 3, the lower end of the hemispherical valve core 3 is provided with a support rod 31 embedded in the mounting groove 14, one end of the support rod 31 close to the hemispherical valve core 3 is provided with a radial inward-contracting groove 311, the lower end of the valve rod 2 is provided with a straight part 21 with a square cross section and an inclined part 22, the inclined part 22 is arranged at the upper end of the straight part 21 and inclines towards the direction of the valve seat 11, and the straight part 21 is arranged at the upper end of the hemispherical valve core 3 in a penetrating manner;
referring to fig. 1 and 4 specifically, a guide groove 23 for limiting the rotation angle of the valve rod 2 to be maintained between 0 and 90 degrees is arranged on the valve rod 2, a guide pin 15 matched with the guide groove 23 penetrates through the valve body 1, and when the valve is in a closed state, the guide pin 15 is located at the opening end of the guide groove 23, and the rotation angle of the valve rod 2 is defined to be 0 degree at this time; when the valve is in a fully open state, the guide pin 15 abuts against the bottom of the guide groove 23, and the rotation angle of the valve rod 2 is defined to be 90 degrees at this time. It should be noted that the present application discloses a structure in which the guide pin is engaged with the guide groove, and when the guide groove is opened in the opposite manner, the definition of the rotation angle of the valve stem is opposite, but the manner also falls within the scope of the present application.
In this embodiment, two positioning pins 32 are disposed at the upper end of the hemispherical valve core 3 and are matched with the inclined portion 22 of the valve rod 2. Specifically, when the valve rod 2 descends, the inclined part 22 extrudes two positioning pins 32, and when the positioning pins 32 contact with the inclined part 22, the inclined part 22 extrudes the positioning pins 32, so that the hemispherical valve core 3 slightly rotates towards one side of the valve seat 11 by taking the lower end support rod 31 as a circle center, and further the hemispherical valve core 3 is extruded with a sealing element on the valve seat 11, thereby achieving a sealing effect; meanwhile, when the extrusion action is not carried out, a certain gap exists between the hemispherical valve core 3 and the valve seat 11, so that the hemispherical valve core 3 is ensured not to be contacted with the valve seat 11 when rotating, and abrasion is caused;
meanwhile, the groove 221 is formed in the inclined portion 22, so that the descending limit of the valve rod 2 can be limited, and the valve rod 2 is ensured not to excessively extrude the hemispherical valve core 3;
when the valve is used, the hand wheel is rotated anticlockwise, the hand wheel drives the transmission nut to rotate so as to drive the valve rod to ascend, the bottom of the valve rod is designed to be an inclined surface, and the inclined part designed to be the inclined surface gradually loses extrusion with the positioning pin when the valve rod ascends, so that the hemispherical valve core moves backwards by taking the lower axial surface of a sphere as the center of the sphere, and the sealing surface of the hemispherical valve core and the sealing surface of a valve seat lose sealing stress;
when the valve rod rises to a certain height, the guide groove is designed on the valve rod, after the guide pin enters the guide groove, the guide pin contacts with the lower end (namely the closed end) of the guide groove, the valve rod is limited, the valve rod is rotated by 90 degrees under the combined action of the lifting force of the valve rod and the guide pin, and the hemispherical valve core is driven to be fully opened.
Valve closure is reversed.
Example two
Referring to fig. 5 and 6, compared with the first embodiment, in the present embodiment, the bottom of the supporting rod 31 is provided with a protruding portion 312 radially disposed, the installation groove 14 is provided with a return spring 141 radially disposed along the supporting rod 31, the return spring 141 is installed toward the direction of the valve seat 11, an arc-shaped insertion groove 142 for accommodating the protruding portion 312 is formed in the installation groove 14, when the valve is in a closed state, the protruding portion 312 abuts against the left side of the installation groove 14 and compresses the return spring 141, and when the valve is in an open state, the protruding portion 312 is inserted in the arc-shaped insertion groove 142.
Specifically, the structure of the protruding part and the return spring is arranged, when the protruding part is in contact with the side part of the mounting groove, the support rod is pushed to compress the return spring, and then the lower end of the hemispherical valve core integrally moves towards the direction of the valve seat, and the structure has the advantages that because the sealing stress between the hemispherical valve core and the valve seat is different at the upper end and the lower end in the technical scheme of the embodiment I, the sealing performance is reduced and the service life is shortened due to the fact that elastic deformation of sealing parts on the hemispherical valve core and the valve seat in different degrees possibly occurs after the hemispherical valve core and the valve seat are used for a period of time; and along with the structural design that branch also can remove, can structurally improve the homogeneity of both ends atress about hemisphere case and the disk seat, further improve valve life.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides an eccentric half ball valve, includes hollow valve body and installs the rotatable hemisphere case in the valve body through the valve rod, hemisphere case with install disk seat in the valve body is sealing connection, the upper end of valve rod is installed and is used for rotating and goes up and down the drive mechanism of valve rod, its characterized in that: the lower extreme of valve body offers the mounting groove that is used for installing the hemisphere case, the lower extreme of hemisphere case is provided with to inlay and puts branch in the mounting groove, the one end that is close to the hemisphere case on the branch is provided with radial inward contraction groove, the lower extreme of valve rod is equipped with the cross-section and is square straight portion and rake, the rake is located the upper end of straight portion and to the slope of disk seat direction, straight portion wears to establish the upper end of hemisphere case.
2. The eccentric hemispherical valve of claim 1, wherein: the valve body is characterized in that a guide groove for limiting the rotation angle of the valve rod to be kept between 0 and 90 degrees is formed in the valve rod, and a guide pin matched with the guide groove penetrates through the valve body.
3. An eccentric hemispherical valve as in claim 2, wherein: the transmission mechanism comprises a bearing, a bearing gland, a transmission nut and a hand wheel fixed on the transmission nut, wherein the bearing, the bearing gland and the transmission nut are sequentially arranged at the upper end of the valve rod from bottom to top.
4. An eccentric hemispherical valve as in claim 3 wherein: and the upper end of the hemispherical valve core is provided with a positioning pin matched with the inclined part on the valve rod.
5. An eccentric half ball valve according to any of claims 1 to 4 wherein: the bottom of branch is provided with along the bellying of radial setting, be provided with the edge in the mounting groove branch radially is provided with reset spring, reset spring orientation the direction installation of disk seat, it is used for holding to have seted up in the mounting groove the arc embedded groove of bellying, when the valve is in the closure state, the bellying is contradicted the left side and the compression of mounting groove reset spring, when the valve is in the open mode, the bellying is embedded and is put in the arc embedded groove.
6. An eccentric hemispherical valve as in claim 5 wherein: and a packing gland for sealing are arranged between the valve rod and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020683.6A CN110608297B (en) | 2019-10-25 | 2019-10-25 | Eccentric hemisphere valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020683.6A CN110608297B (en) | 2019-10-25 | 2019-10-25 | Eccentric hemisphere valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110608297A true CN110608297A (en) | 2019-12-24 |
| CN110608297B CN110608297B (en) | 2024-04-16 |
Family
ID=68895161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911020683.6A Active CN110608297B (en) | 2019-10-25 | 2019-10-25 | Eccentric hemisphere valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110608297B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374898A (en) * | 2021-06-30 | 2021-09-10 | 浙江石化阀门有限公司 | Pneumatic distribution adjusting ball valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3515371A (en) * | 1966-06-06 | 1970-06-02 | Orbit Valve Co | Valve and valve seat |
| CN2333844Y (en) * | 1998-09-23 | 1999-08-18 | 刘承昭 | Forced sealing ball valve |
| CN102261487A (en) * | 2011-05-07 | 2011-11-30 | 浙江万龙机械有限公司 | Valve rod lifting track ball valve |
| CN202371205U (en) * | 2011-12-19 | 2012-08-08 | 科福龙阀门集团有限公司 | Rolling orbit sphere valve |
| CN108799539A (en) * | 2018-08-21 | 2018-11-13 | 江苏亿阀股份有限公司 | A kind of orbit ball valve with spiral valve rod |
| CN109990110A (en) * | 2019-05-05 | 2019-07-09 | 凯瑞特阀业有限公司 | Forced seal ball valve |
| CN209213065U (en) * | 2018-12-28 | 2019-08-06 | 湖北泰和石化设备有限公司 | Orbit ball valve |
| CN210770381U (en) * | 2019-10-25 | 2020-06-16 | 沪航科技集团有限公司 | Eccentric half ball valve |
-
2019
- 2019-10-25 CN CN201911020683.6A patent/CN110608297B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3515371A (en) * | 1966-06-06 | 1970-06-02 | Orbit Valve Co | Valve and valve seat |
| CN2333844Y (en) * | 1998-09-23 | 1999-08-18 | 刘承昭 | Forced sealing ball valve |
| CN102261487A (en) * | 2011-05-07 | 2011-11-30 | 浙江万龙机械有限公司 | Valve rod lifting track ball valve |
| CN202371205U (en) * | 2011-12-19 | 2012-08-08 | 科福龙阀门集团有限公司 | Rolling orbit sphere valve |
| CN108799539A (en) * | 2018-08-21 | 2018-11-13 | 江苏亿阀股份有限公司 | A kind of orbit ball valve with spiral valve rod |
| CN209213065U (en) * | 2018-12-28 | 2019-08-06 | 湖北泰和石化设备有限公司 | Orbit ball valve |
| CN109990110A (en) * | 2019-05-05 | 2019-07-09 | 凯瑞特阀业有限公司 | Forced seal ball valve |
| CN210770381U (en) * | 2019-10-25 | 2020-06-16 | 沪航科技集团有限公司 | Eccentric half ball valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374898A (en) * | 2021-06-30 | 2021-09-10 | 浙江石化阀门有限公司 | Pneumatic distribution adjusting ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110608297B (en) | 2024-04-16 |
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