CN203082259U - Double-board type ball valve - Google Patents
Double-board type ball valve Download PDFInfo
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- CN203082259U CN203082259U CN 201320062173 CN201320062173U CN203082259U CN 203082259 U CN203082259 U CN 203082259U CN 201320062173 CN201320062173 CN 201320062173 CN 201320062173 U CN201320062173 U CN 201320062173U CN 203082259 U CN203082259 U CN 203082259U
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Abstract
The utility model relates to a double-board type ball valve which comprises a valve body, a valve cover, a left spherical body, a right spherical body, a valve rod and a driving device, wherein the left spherical body and the right spherical body are connected with a left telescopic rod and a right telescopic rod, lean iron arranged at one end of the valve rod is in linkage connection with the left telescopic rod and the right telescopic rod, and when the left telescopic rod and the right telescopic rod drive the left spherical body and the right spherical body to arrive at the closing position of the valve, the lean iron moves along the axial direction of a valve seat. The driving device is arranged at the other end of the valve rod, a driving frame driving the left spherical body and the right spherical body to rotate to the opening position or the closing position of the valve is arranged inside a valve cavity, the valve rod and the driving frame are in linkage connection, in freely sliding fit in the axial direction, and in driving fit in the rotary direction, and the valve rod is in linkage connection with an automatic rotating mechanism which achieves automatic rotation while the driving device drives the valve rod to axially move. According to the double-board type ball valve, the driving device is only required to drive the valve rod to axially move to achieve opening and closing of the valve, rotation and lifting of the valve rod drive the left spherical body and the right spherical body to stretch and retreat to be separated from the seal surface, opening and closing of the valve are simultaneously achieved in a rotary mode, and operation is simple, convenient and reliable.
Description
Technical field
The utility model relates to valve technology field, is specifically related to be applied to the double-plate ball valve on coal gas, the natural gas pipe.
Background technique
Break-make control on tradition coal gas or the natural gas pipe is generally finished by a seal butterfly valve and a blank-plate valve acting in conjunction, during operation control, needs two coordinations to operate respectively, operation inconvenience; Simultaneously, there is the unsafe factor of internal leakage in blank-plate valve, can't really cut off medium completely.
For addressing the above problem, China Patent No. is 90222720.3 to disclose " regulating ratio pressure type water seal ball valve ", mainly form by valve body, setting stick, pressure pointer, valve rod, arm for direction indicator, handle, jack shaft, wedge block, sliding axle and two hemispheres, when in the needs blanking tube during gas, artificial switching handle, judge the two hemispheres body position by arm for direction indicator, itself and two pipeline opening are coincide; Rotate setting stick again, drive valve rod and rotate, move up and down thereby drive wedge block, the moving up and down of slide block drives sliding axle and moves horizontally, and the two halves spheroid moved radially compress on the valve seat that is sealed in pipeline opening by the sliding axle level is flexible; And the two ends up and down at valve body tap into water pipe and outlet pipe respectively, utilize intake pipe toward the interior water flowing of valve body, have further guaranteed sealing effect by water seal; When needing connecting pipe, then anti-sequential operation.Above-mentioned ball valve has the reliable sealing advantage, but the keying of valve control needs two to overlap independently control mechanism, a difficult problem that still exists valve rod can't the rotation of the left and right hemisphere of substep controlling and driving and move radially, cause: 1) ball valve still needs two cover manual drives operation equipment, by operation substep coordinated manipulation, the valve mechanism complexity, not compact and unhandy defective; 2) need to lean on skilled operator's thinking to realize in proper order and operate, operator have misoperation easily, cause that valve damages, and causes security incident when serious; 3) two overlap independently manual-operating mechanism, need to lean on skilled operator's thinking to realize in proper order and operate, and are difficult to realize valve automation control.
Summary of the invention
Deficiency at the prior art existence, the purpose of this utility model is to provide a kind of rotation and lifting through valve rod to drive also to rotate when left and right sides spherical surface body is flexible to disengage sealing surface and realize valve opening and close, only need actuate valve stem can realize valve opening and closing, only need single drive unit setting, the operation that simplifies the operation, simple to operation, can realize automatic drive controlling, operate light, efficient and reliable sealing double-plate ball valve safe in utilization.
For achieving the above object, the utility model provides following technological scheme: a kind of double-plate ball valve, include valve body, valve gap, flap, valve rod and drive unit, be provided with valve pocket in the valve body, valve pocket is positioned at the fluid inlet and outlet place valve seat is set, valve body is provided with and is communicated with advancing of valve pocket, outlet valve, flap is a left side that cooperates with valve base sealing, right spherical surface body setting, a left side, right spherical surface body correspondence is connected with a left side, right flexible rod, valve handle activity is plugged on the valve gap, valve rod one end passes valve gap and stretches in the valve pocket, this end be equipped with valve rod move axially and on, the wedge of following slippage, a wedge and a left side, right flexible rod is connected, wedge is through a left side, right flexible rod drives a left side, right spherical surface body is when the valve closing position, move along the valve seat axial direction, the valve rod the other end is installed drive unit, also be provided with in the described valve pocket and drive a left side, right spherical surface body rotates to the bogie of valve opening or closed position, it is characterized in that: described valve rod and bogie are to be free to slide in the axial direction and cooperate and drive being connected of cooperating on sense of rotation, and described valve rod is connected and realizes that the drive unit actuate valve stem moves axially the automatic rotation mechanism that rotates automatically in the process.
By adopting technique scheme, valve rod upwards is free to slide to cooperate and drive on sense of rotation with the bogie couple axle and cooperates, automatic rotation mechanism realizes that the drive unit actuate valve stem moves axially rotation automatically in the process, during throttle down, the drive unit actuate valve stem moves axially, and under the effect of automatic rotation mechanism, actuate valve stem is rotated, valve rod rotates and drives the bogie rotation, thereby drive a left side, right spherical surface body rotates to and the valve seat corresponding position, under the cooperation of wedge, drive a left side afterwards, right flexible rod drives a left side, right spherical surface body is pressed on the valve seat, and carries out water seal by water intake water flowing in valve pocket; During Open valve, by water outlet water in the valve pocket is emitted, the drive unit actuate valve stem axially oppositely moves, under the cooperation of wedge, left and right flexible rod drives left and right spherical surface body and throws off valve seat, and under automatic rotation mechanism, actuate valve stem is rotated afterwards, valve rod rotates and drives the bogie rotation, drives left and right spherical surface body and turns to the valve opening position; Valve is being opened or is closing in the closed procedure, drive unit only needs actuate valve stem to move axially, can realize that the rotation of valve rod and lifting drive also to rotate when left and right sides spherical surface body is flexible to disengage sealing surface through the cooperation of wedge and automatic rotation mechanism realizes valve opening and closes, simplification device, simplify the operation, be convenient to automation control.
The utility model further is set to: described automatic rotation mechanism includes the support that is fixed on the valve gap, be arranged on guide-track groove and rack-mount orbit determination pin on the valve rod, described guide-track groove along stem shaft to setting, guide-track groove comprises straight trough, a straight trough length and a left side, right spherical surface body adapts along valve seat axial direction displacement distance, the top of straight trough and a left side, right spherical surface body breaks away from valve seat position correspondence fully, the end of straight trough and a left side, right spherical surface body compresses valve seat position correspondence fully, the top of straight trough along stem shaft to being extended with the spiral chute that circumferentially is provided with around valve rod, the direction that spiral chute extends is identical to the direction at top with the straight trough end, a spiral chute horizontal projection length and a left side, the stroke that turns in the right spherical surface body opening/shutting valve process adapts, and described orbit determination pin end is stretched in the guide-track groove and cooperated realization drive unit actuate valve stem to move axially rotation automatically in the process with guide-track groove.
By adopting technique scheme, rotate in moving process through realizing guide-track groove and cooperating of set pattern pin stem shaft, automatic rotation mechanism is simple in structure, be provided with easy to process, and adopt existing conventional processing method can process required guide-track groove on valve rod, drive unit only needs moving axially of actuate valve stem can realize two motions on the axial and circumferential, and drive unit not only can be simplified setting, and the motion stabilization of valve rod, drive reliable and stable.
The utility model further is set to: described bogie includes the upper joint sleeve that is tightly connected between the end face, middle driving casing and lower sealing cover, upper joint sleeve, after being tightly connected, middle driving casing and lower sealing cover form seal chamber, wedge is positioned at seal chamber, described upper joint sleeve is connected an end with middle driving casing the other end is lifted in the valve body, this end is provided with inner spline housing, corresponding shaft part is provided with external splines on the valve rod, valve rod one end inserts in the seal chamber and is connected with wedge, and cooperate with inner spline housing on the upper joint sleeve through external splines and to realize being connected, driving casing comprises the driving casing body in described, the driving casing body circumferentially is provided with and is used for carries left, the left side of right spherical surface body, right supporting sleeve, a left side, right flexible rod slides and is plugged in a left side, cooperate a left side with wedge in the right supporting sleeve, right supporting sleeve respectively with a left side, right flexible rod is sealed and matched.
By adopting technique scheme, wedge, valve rod, flexible rod and assembly structure thereof are positioned at seal chamber, and driving casing forms seal protection to it, and when avoiding water seal, water corrodes above-mentioned part, improve valve working life and guarantee that the use of valve is reliable.
The utility model further is set to: a described wedge and a left side, the corresponding both sides of right flexible rod are provided with guiding groove, the end that described left flexible rod cooperates with wedge is provided with the moving seat of the Left-wing Federation, left driving shaft in the adaptive insertion guiding groove is installed on the moving seat of the Left-wing Federation, the end that right flexible rod cooperates with wedge is provided with right interlock seat, right driving axle in the adaptive insertion guiding groove is installed on the right interlock seat, described guiding groove includes vertical straight trough and skewed slot, a described left side, right flexible rod is through a left side, right driving axle slides along skewed slot and constitutes a wedge driving left side, right spherical surface body moves along the valve seat axial direction, the horizontal projection length of skewed slot and a left side, right spherical surface body adapts along valve seat axial direction displacement distance, vertically the spiral chute axial length adapts on the length of straight trough and the valve rod, the vertical straight trough of guiding groove and the axial position of skewed slot in proper order with the straight trough and the spiral fluted axial position reversed in order of guide-track groove.
By adopting technique scheme, left and right flexible rod is reliable with cooperating of wedge, the moving axially reliably of assurance left and right sides flexible rod along valve seat, and left and right sides spherical surface body compresses and throws off the valve seat fast and stable.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the double-plate ball-valve structure schematic representation of the utility model specific embodiment.
Embodiment
Referring to accompanying drawing 1, accompanying drawing 2, the disclosed a kind of double-plate ball valve of the utility model, include valve body 1, valve gap 2, flap, valve rod 3 and drive unit 4, be provided with valve pocket 10 in the valve body 1, valve pocket 10 is positioned at the fluid inlet and outlet place valve seat is set, valve body 1 is provided with and is communicated with advancing of valve pocket 10, outlet valve 11,12, flap is a left side that cooperates with valve base sealing, right spherical surface body 50,51 are provided with, left side spherical surface body 50 is fixedly connected with left flexible rod 60, right spherical surface body 51 is fixedly connected with right flexible rod 61, valve rod 3 activities are plugged on the valve gap 2, valve rod 3 one ends pass valve gap 2 and stretch in the valve pocket 10, this end be equipped with valve rod 3 move axially and on, the wedge 7 of following slippage, a wedge 7 and a left side, right flexible rod 60,61 are connected, wedge 7 is through a left side, right flexible rod 60,61 drive a left side, right spherical surface body 50,51 when the valve closing position, moves along the valve seat axial direction, and valve rod 3 the other ends are installed drive unit 4; Also be provided with in the described valve pocket 10 and drive the bogie 9 that left and right spherical surface body 50,51 rotates to valve opening or closed position, described valve rod 3 and bogie 8 are to be free to slide in the axial direction and cooperate and drive being connected of cooperating on sense of rotation, and described valve rod 3 is connected and realizes that drive unit 4 actuate valve stem 3 move axially the automatic rotation mechanism 8 that rotates automatically in the process.
In this specific embodiment, described automatic rotation mechanism 8 includes the support 80 that is fixed on the valve gap 2, be arranged on the guide-track groove 30 on the valve rod 3 and be installed in orbit determination pin 82 on the support 80, support 80 is provided with the guide pins fitting seat of installing for guide pins 82, and guide pins 82 is inserted in the guide pins fitting seat; Described guide-track groove 30 axially is provided with along valve rod 3, guide-track groove 30 comprises straight trough 300, straight trough 300 length and left and right spherical surface body 50,51 adapt along valve seat axial direction displacement distance, it is corresponding that the top of straight trough 300 and left and right spherical surface body 50,51 break away from the valve seat position fully, and it is corresponding that the end of straight trough 300 and left and right spherical surface body 50,51 compress the valve seat position fully; The top of straight trough 300 extends axially the spiral chute 301 that circumferentially is provided with around valve rod 3 along valve rod 3, the direction that spiral chute 301 extends is identical to the direction at top with straight trough 300 ends, the stroke that turns in spiral chute 301 horizontal projection length and left and right spherical surface body 50, the 51 opening/shutting valve processes adapts, and described orbit determination pin 82 stretches in the guide-track groove 30 and cooperates realization drive unit 4 actuate valve stem 3 to move axially rotation automatically in the process with guide-track groove 30; Be valve rod 3 in moving axially process, orbit determination pin 82 slides along guide-track groove 30, when sliding into spiral chute 301, because under the effect of spiral chute 301, valve rod 3 rotates, drives bogie and rotates, and rotates thereby drive left and right spherical surface body 50,51; Stable for the driving that makes valve rod 3, be provided with the guide pins fitting seat in support 80 relative both sides, corresponding valve rod 3 is provided with two guide-track grooves that are oppositely arranged 30.Certainly as the feasible technological scheme of the utility model, automatic rotation mechanism can also be control electronics, what be provided with in the control electronics that correspondent control circuits realizes valve rod freely rotates control, but it is loaded down with trivial details that it exists circuit to be provided with, each several part coordinates to be provided with the defective of inconvenience, so the utility model preferentially selects for use, orbit determination pin 82 cooperates with guide-track groove 30 realizes that rotation is controlled automatically.
For protecting each parts, described bogie 9 includes the upper joint sleeve 90 that is tightly connected between the end face, middle driving casing 91 and lower sealing cover 92, after being tightly connected, upper joint sleeve 90, middle driving casing 91 and lower sealing cover 92 form seal chamber 93, wedge 7 is positioned at seal chamber 93, described upper joint sleeve 90 is lifted in the valve body 1 with the other end that middle driving casing 91 is connected an end, and connecting sleeve 90 passes valve gap 2, is lifted on the valve gap 2; The end that upper joint sleeve 90 is lifted on the valve gap is provided with inner spline housing 900, corresponding shaft part is provided with external splines 31 on the valve rod 3, valve rod 3 one ends insert in the seal chamber 93 and are connected with wedge 7, and cooperate realization to be connected through external splines 31 with inner spline housing 900 on the upper joint sleeve 90; Driving casing 91 comprises driving casing body 910 in described, driving casing body 910 circumferentially is provided with the left and right supporting sleeve 911,912 that is used to support left and right spherical surface body 50,51, left and right flexible rod 60,61 slides to be plugged in the left and right supporting sleeve 911,912 and cooperates with wedge 7, left side supporting sleeve 911 is sealed and matched near the end and the left flexible rod 60 of left spherical surface body 50, and right supporting sleeve 912 is sealed and matched near the end and the right flexible rod 61 of right spherical surface body 51.The above-mentioned setting down; bogie 9 forms a seal chamber 93; wedge 7, valve rod 3, left flexible rod 60 and right flexible rod 61 place and form protection in the sealing cavity 93; bogie 9 adopts the split setting; easy to process; not only have driving action, also have protection and place its inner parts not to be subjected to the function of dielectric corrosion.
For wedge 7 is cooperated reliably with left and right flexible rod 60,61, described wedge 7 is equipped with guiding groove 71 with left and right flexible rod 60,61 corresponding both sides, and promptly wedge 7 is provided with two guiding grooves 71 that are provided with relatively; The end that described left flexible rod 60 cooperates with wedge 7 is provided with the moving seat 601 of the Left-wing Federation, on the moving seat 601 of the Left-wing Federation left driving shaft 602 is installed, on the left driving shaft 602 adaptive insertion wedges 7 in the corresponding guiding groove 71, the end that right flexible rod 61 cooperates with wedge 7 is provided with right interlock seat 611, on the right interlock seat 611 right driving axle 612 is installed, right driving axle 612 adaptive insertions in the corresponding guiding groove 71, described guiding groove 71 includes vertical straight trough 710 and skewed slot 711, a described left side, right flexible rod 60,61 through a left side, right driving axle 602,612 constitute wedge 7 along skewed slot 711 slips drives a left side, right spherical surface body 50,51 move along the valve seat axial direction; The horizontal projection length of skewed slot 711 and left and right spherical surface body 50,51 adapt along valve seat axial direction displacement distance, promptly also with valve rod 3 on straight trough 300 length adapt; On the described wedge 7 vertically on the length of straight trough 710 and the valve rod 3 spiral chute 301 axial lengths adapt; The axial position reversed in order of the axial position of vertical straight trough 710 of guiding groove 71 and skewed slot 711 order and the straight trough 300 and the spiral chute 301 of guide-track groove 30 wherein, promptly when guiding groove 71 is followed successively by skewed slot 711, vertical straight trough 710 from top to bottom, guide-track groove 30 is followed successively by straight trough 300 and spiral chute 301 from top to bottom, otherwise in like manner, certainly general valve is when operation, valve rod moves down and is the valve closing operation, so guiding groove 71 is followed successively by skewed slot 711, vertical straight trough 710 from top to bottom, guide-track groove 30 is followed successively by straight trough 300 from top to bottom and spiral chute 301 is provided with.Certainly wedge 7 also can be equipped with for wedge-shaped blocks and Returnning spring, but adopts guiding groove 71 to cooperate with live axle, cooperates reliable and stable.
Double-plate ball valve of the present utility model only needs drive unit 4 is set on valve rod 3, and drive unit 4 can be selected for use according to client's actual demand for electricity driving, pneumatic drive and gear transmission etc., can realize automation control; Solve traditional ball valve and adopt two drive end settings, can only adopt two cover manual-operating mechanisms the rotation that realizes spherical surface body to be set and to move radially the unhandy defective of being brought.
Of the present utility model pair of plate makes ball valve, drive unit 4 actuate valve stem 3 are descending, orbit determination pin 82 spiral chutes 301 along guide-track groove 30 upwards slide, under the cooperation of orbit determination pin 82 and spiral chute 301, valve rod 3 rotations, simultaneously, valve rod 3 drives bogie 9 and rotates, drive a left side, right spherical surface body 50,51 rotate (this process left side, right flexible rod 60, a left side of 61, right driving axle 602, the 612 vertical straight troughs 710 along guiding groove 71 slide), when orbit determination pin 82 skids off spiral chute 301, right spherical surface body 50,51 turn to the valve closing position, valve rod 3 continues descending, orbit determination pin 82 straight troughs 300 along guide-track groove 30 slide, valve rod 3 does not rotate, (left side in this process, right flexible rod 60, a left side of 61, right driving axle 602,612 skewed slots 711 along guiding groove 71 slide, and wedge 71 is with a left side, right spherical surface body 50,51 pushings compress sealing to valve seat), formation water seal after inlet valve 11 discharges water in valve pocket 10; Otherwise valve closing operation.Valve of the present utility model, the drive unit actuate valve stem moves axially in the process, realize that valve rod rotation and lifting drive a left side, right spherical surface body is stretched also to rotate when sealing surface is disengaged and is realized valve opening and close, have simple in structure, control is convenient, only the axially movable drive unit of actuate valve stem need be set, avoid two driving operating devices that the problem that has the sequence of operation dislocation is set, solve the two driving operating devices of transmission simultaneously down because the problem of sequence of operation, be difficult to realize the problem of automation control, satisfy the client to the selecting for use of drive unit, realize automation control.
Claims (4)
1. double-plate ball valve, include valve body, valve gap, flap, valve rod and drive unit, be provided with valve pocket in the valve body, valve pocket is positioned at the fluid inlet and outlet place valve seat is set, valve body is provided with and is communicated with advancing of valve pocket, outlet valve, flap is a left side that cooperates with valve base sealing, right spherical surface body setting, a left side, right spherical surface body correspondence is connected with a left side, right flexible rod, valve handle activity is plugged on the valve gap, valve rod one end passes valve gap and stretches in the valve pocket, this end be equipped with valve rod move axially and on, the wedge of following slippage, a wedge and a left side, right flexible rod is connected, wedge is through a left side, right flexible rod drives a left side, right spherical surface body is when the valve closing position, move along the valve seat axial direction, the valve rod the other end is installed drive unit, also be provided with in the described valve pocket and drive a left side, right spherical surface body rotates to the bogie of valve opening or closed position, it is characterized in that: described valve rod and bogie are to be free to slide in the axial direction and cooperate and drive being connected of cooperating on sense of rotation, and described valve rod is connected and realizes that the drive unit actuate valve stem moves axially the automatic rotation mechanism that rotates automatically in the process.
2. double-plate ball valve according to claim 1, it is characterized in that: described automatic rotation mechanism includes the support that is fixed on the valve gap, be arranged on guide-track groove and rack-mount orbit determination pin on the valve rod, described guide-track groove along stem shaft to setting, guide-track groove comprises straight trough, a straight trough length and a left side, right spherical surface body adapts along valve seat axial direction displacement distance, the top of straight trough and a left side, right spherical surface body breaks away from valve seat position correspondence fully, the end of straight trough and a left side, right spherical surface body compresses valve seat position correspondence fully, the top of straight trough along stem shaft to being extended with the spiral chute that circumferentially is provided with around valve rod, the direction that spiral chute extends is identical to the direction at top with the straight trough end, a spiral chute horizontal projection length and a left side, the stroke that turns in the right spherical surface body opening/shutting valve process adapts, and described orbit determination pin end is stretched in the guide-track groove and cooperated realization drive unit actuate valve stem to move axially rotation automatically in the process with guide-track groove.
3. double-plate ball valve according to claim 2, it is characterized in that: described bogie includes the upper joint sleeve that is tightly connected between the end face, middle driving casing and lower sealing cover, upper joint sleeve, after being tightly connected, middle driving casing and lower sealing cover form seal chamber, wedge is positioned at seal chamber, described upper joint sleeve is connected an end with middle driving casing the other end is lifted in the valve body, this end is provided with inner spline housing, corresponding shaft part is provided with external splines on the valve rod, valve rod one end inserts in the seal chamber and is connected with wedge, and cooperate with inner spline housing on the upper joint sleeve through external splines and to realize being connected, driving casing comprises the driving casing body in described, the driving casing body circumferentially is provided with and is used for carries left, the left side of right spherical surface body, right supporting sleeve, a left side, right flexible rod slides and is plugged in a left side, cooperate a left side with wedge in the right supporting sleeve, right supporting sleeve respectively with a left side, right flexible rod is sealed and matched.
4. according to claim 2 or 3 described double-plate ball valves, it is characterized in that: a described wedge and a left side, the corresponding both sides of right flexible rod are provided with guiding groove, the end that described left flexible rod cooperates with wedge is provided with the moving seat of the Left-wing Federation, left driving shaft in the adaptive insertion guiding groove is installed on the moving seat of the Left-wing Federation, the end that right flexible rod cooperates with wedge is provided with right interlock seat, right driving axle in the adaptive insertion guiding groove is installed on the right interlock seat, described guiding groove includes vertical straight trough and skewed slot, a described left side, right flexible rod is through a left side, right driving axle slides along skewed slot and constitutes a wedge driving left side, right spherical surface body moves along the valve seat axial direction, the horizontal projection length of skewed slot and a left side, right spherical surface body adapts along valve seat axial direction displacement distance, vertically the spiral chute axial length adapts on the length of straight trough and the valve rod, the vertical straight trough of guiding groove and the axial position of skewed slot in proper order with the straight trough and the spiral fluted axial position reversed in order of guide-track groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320062173 CN203082259U (en) | 2013-02-04 | 2013-02-04 | Double-board type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320062173 CN203082259U (en) | 2013-02-04 | 2013-02-04 | Double-board type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082259U true CN203082259U (en) | 2013-07-24 |
Family
ID=48828097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320062173 Withdrawn - After Issue CN203082259U (en) | 2013-02-04 | 2013-02-04 | Double-board type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104715A (en) * | 2013-02-04 | 2013-05-15 | 精工阀门有限公司 | Double-plate type ball valve |
-
2013
- 2013-02-04 CN CN 201320062173 patent/CN203082259U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104715A (en) * | 2013-02-04 | 2013-05-15 | 精工阀门有限公司 | Double-plate type ball valve |
| CN103104715B (en) * | 2013-02-04 | 2014-07-16 | 精工阀门有限公司 | Double-plate type ball valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20140716 |
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| RGAV | Abandon patent right to avoid regrant |