CN110159785A - A kind of improved ball valve - Google Patents
A kind of improved ball valve Download PDFInfo
- Publication number
- CN110159785A CN110159785A CN201910533821.4A CN201910533821A CN110159785A CN 110159785 A CN110159785 A CN 110159785A CN 201910533821 A CN201910533821 A CN 201910533821A CN 110159785 A CN110159785 A CN 110159785A
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- China
- Prior art keywords
- valve
- flap
- ball
- window
- bull stick
- Prior art date
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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
- 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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/204—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
Abstract
The present invention relates to a kind of improved ball valves, including valve body, interior to be equipped with cavity；Left valve deck and right valve deck, are respectively and fixedly installed to the both ends of valve body；Valve ball is rotatably arranged in the cavity, and left valve chamber and right valve chamber are equipped in valve ball；Left flap and right flap, are respectively provided in left valve chamber and right valve chamber；Shaft, including bull stick and handle；Control-rod, including pull rod and control block.This improved ball valve, in opening process, left flap, right flap can prolong the service life without friction, abrasion and improve reliability.
Description
Technical field
The invention belongs to the technical field of pipeline valve more particularly to a kind of improved ball valves.
Background technique
Pipeline transport medium is usually utilized in industrial or civilian infrastructure, wherein since the variation of pressure or temperature is wanted
Pipeline is adjusted, regulating mechanism, especially ball valve are used in pipeline to adjust flow, to ensure optimal work item
The safety of part and environment.Ball valve be usually use the sphere with circular channel as open and close element, sphere with valve body rotation
And realize the valve of switching motion.The opening and closing element of ball valve is the sphere for having through-hole, is rotated around the axis perpendicular to channel, from
And achieve the purpose that open and close channel.Traditional ball valve is usually the sphere installation with through-hole on valve seat, passes through sphere
Rotation come realize open and close.Ball valve is because have fluid resistance small, and structure is simple, close reliable, easy to operate, opening and closing
Rapidly, the advantages that applied widely, is widely used to each portion such as petroleum, chemical industry, power generation, papermaking, atomic energy, aviation, rocket
In door and people's daily life.But existing ball valve is to guarantee that interior leakage does not occur, so must be by sphere, also when installation
It is closure member, is tightly pressed on valve seat, torque is big in opening and closing, and sphere generates friction, abrasion with valve seat during rotation
Seriously, leakage is easily caused, the functional reliability of ball valve is reduced, shortens the service life of ball valve.
Summary of the invention
The technical problem to be solved by the present invention is to a kind of structurally reasonable, valve ball is provided for above-mentioned state of the art
Without the improved ball valve for wearing, using reliable service life length between valve seat.
The technical scheme of the invention to solve the technical problem is: a kind of improved ball valve, it is characterised in that: packet
Valve body is included, is equipped in valve body along the perforative cavity in left and right；Left valve deck, left valve deck are fixedly mounted on the left end of valve body, in left valve deck
Equipped with the first runner being connected with cavity；Right valve deck, right valve deck are fixedly mounted on the right end of valve body, are equipped in right valve deck and chamber
The second flow channel that body is connected；Valve ball, valve ball is rotatable to be set in the cavity, the left and right ends of valve ball be symmetrically arranged with left valve chamber and
Right valve chamber, the interior through-flow window for being equipped with perforative rectangle of valve ball, the interior left connection being equipped with to be connected to left valve chamber and through-flow window of valve ball
The section of slot, the interior right connectivity slot being equipped with to be connected to right valve chamber and through-flow window of valve ball, the left connection slot and right connectivity slot is all
It is rectangular；Shaft, shaft include bull stick and handle, and the rotatable top for being located at valve body of bull stick, the lower part of bull stick and valve ball are solid
Fixed connection, the top of bull stick reach outside valve body, and handle is equipped with axial along the top for being radially arranged in bull stick of bull stick, bull stick
Perforative bull stick through-hole；Left flap and right flap, what left flap can horizontally slip is located in left valve chamber, and right flap can horizontally slip
Be located in right valve chamber, left flap is identical with right valve flap structure, includes sequentially connected spherical seal surface, cylindrical body, rectangular
Connecting rod and drive block, wherein cylindrical body is slidably matched with left valve chamber or right valve chamber, connecting rod and left connection slot or right is connected to
Slot is slidably matched, and drive block is located in through-flow window and which is provided with the first inclined-plane；Control-rod, control-rod include from top to bottom successively
The pull rod and control block of connection, pull rod, which can slide up and down, to be located in the bull stick through-hole, and the section of control block is rectangle and can
What is slided up and down is located in through-flow window, is equipped with the flow-conveying groove of rectangle in control block, the left and right ends of control block be symmetrically equipped with
The left connection window that flow-conveying groove is connected is connected to window with right, and the top of left connection window is equipped with the second inclined-plane, and the lower part of left connection window is set
There is left stop block, the top of right connection window is equipped with third inclined-plane, and the lower part of right connection window is equipped with right stop block；When control-rod is located at
When the position of the top, the drive block of left flap is located in left connection window and its right end offsets with left stop block, the driving of right flap
Block is located in right connection window and its left end offsets with right stop block；When control-rod is moved downward by the top position, left backstop
Block, right stop block are detached from the drive block of left flap and right flap respectively, and then first inclined-plane on the second inclined-plane and left flap connects
Touching pushes left flap mobile to the position of the valve ball centre of sphere, while the first contact of incline plane of third inclined-plane and right flap pushes right flap
It is mobile to the position of the valve ball centre of sphere.
Preferably, the left spring to push left flap mobile to the position far from the valve ball centre of sphere is equipped in left valve chamber,
The right spring to push right flap mobile to the position far from the valve ball centre of sphere is equipped in right valve chamber.
Preferably, left spring and right spring are all butterfly spring.
Preferably, being equipped with left valve seat in the left valve deck, the spherical seal surface of left valve seat and left flap, which seals, to be cooperated；Institute
It states and is equipped with right valve seat in right valve deck, the spherical seal surface of right valve seat and right flap, which seals, to be cooperated.
Preferably, further including compression bar, compression bar is moved up and down to drive control bar, and cylinder is radially equipped on pull rod
Pin, the straight pin are plugged in the sliding groove of compression bar one end, are hinged on handle in the middle part of compression bar.
Preferably, being equipped with torsional spring between the compression bar and handle, one end of torsional spring is contradicted on handle, and the other end contradicts
For forcing compression bar to rotate down on compression bar.
Compared with the prior art, the advantages of the present invention are as follows: when control valve ball is rotated from closed position to open position,
First move down control-rod, control-rod pushes left flap, right flap mobile to the position of the valve ball centre of sphere, left flap and right flap
Be retracted into left valve chamber and right valve chamber respectively, being then rotated further by shaft starts turning valve ball, in this way, left flap and left valve seat without
The service life and reliability of ball valve can be improved without fretting wear in fretting wear, right flap and right valve seat.
Detailed description of the invention
Fig. 1 is the assembling structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the cross-sectional view of the embodiment of the present invention, and valve ball is in the closed position at this time；
Fig. 3 is the cross-sectional view of the embodiment of the present invention, and control-rod moves down at this time, and left flap and right flap are to the valve ball centre of sphere
Position is mobile；
Fig. 4 is the cross-sectional view of the embodiment of the present invention, and valve ball is in full open position at this time, and control-rod is in bottom；
Fig. 5 is the A-A cross-sectional view in Fig. 4；
Fig. 6 is the cross-sectional view of the embodiment of the present invention, and valve ball is in full open position at this time, and control-rod is in topmost；
Fig. 7 is the B-B cross-sectional view in Fig. 6；
Fig. 8 is part assembling structure schematic diagram in the embodiment of the present invention
Fig. 9 is the three dimensional structure diagram of compression bar in the embodiment of the present invention；
Figure 10 is the three dimensional structure diagram of control-rod in the embodiment of the present invention；
Figure 11 is the structural schematic diagram of control-rod in the embodiment of the present invention；
Figure 12 is the C-C cross-sectional view in Figure 11；
Figure 13 is the three dimensional structure diagram of left flap and right flap in the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
It as shown in figures 1-13, is a preferred embodiment of the present invention.
A kind of ball valve, including
Valve body 1, valve body 1 is interior to be equipped with along the perforative cavity 101 in left and right.
Left valve deck 2a, left valve deck 2a are fixedly mounted on the left end of valve body 1, are equipped in left valve deck 2a and are connected with cavity 101
First runner 2a1, left valve deck 2a in be equipped with left valve seat 8a.
Right valve deck 2b, right valve deck 2b are fixedly mounted on the right end of valve body 1, are equipped in right valve deck 2b and are connected with cavity 101
Second flow channel 2b1, right valve deck 2b in be equipped with right valve seat 8b.
Valve ball 3, valve ball 3 is rotatable to be located in cavity 101, and the left and right ends of valve ball 3 are symmetrically arranged with left valve chamber 3a and the right side
Valve chamber 3b, the interior through-flow window 31 for being equipped with perforative rectangle of valve ball 3, valve ball 3 is interior to be equipped with to be connected to left valve chamber 3a and through-flow window 31
Left connection slot, the right connectivity slot to be connected to right valve chamber 3b and through-flow window 31, the left connection slot and right company are equipped in valve ball 3
The section of through slot is all rectangular.
Shaft 9, shaft 9 include bull stick 91 and handle 92, the rotatable top for being located at valve body 1 of bull stick 91, bull stick 91
Lower part is fixedly connected with valve ball 3, and the top of bull stick 91 reaches outside valve body 1, and handle 92 is radially arranged in bull stick along bull stick 91
91 top, bull stick 91 is interior to be equipped with the bull stick through-hole axially penetrated through.
Left flap 6a and right flap 6b, what left flap 6a can horizontally slip is located in left valve chamber 3a, and right flap 6b can be controlled
Sliding be located in right valve chamber 3b, left flap 6a is identical with right flap 6b structure, include sequentially connected spherical seal surface 61,
Cylindrical body 62, rectangular connecting rod 63 and drive block 64, wherein cylindrical body 62 is slidably matched with left valve chamber 3a or right valve chamber 3b,
Connecting rod 63 is slidably matched with left connection slot or right connectivity slot, and drive block 64 is located in through-flow window 31 and which is provided with the first inclined-plane
641.The left spring 7a to push left flap 6a mobile to the position far from 3 centre of sphere of valve ball, right valve chamber are equipped in left valve chamber 3a
The right spring 7b to push right flap 6b mobile to the position far from 3 centre of sphere of valve ball is equipped in 3b.Left spring 7a and right spring
7b is butterfly spring.The spherical seal surface 61 of left valve seat 8a and left flap 6a, which seals, to be cooperated, right valve seat 8b and right flap 6b's
The sealing cooperation of spherical seal surface 61.
Control-rod 4, control-rod 4 include that from top to bottom sequentially connected pull rod 4b and control block 4a, pull rod 4b can go up downslide
Dynamic is located in the bull stick through-hole, and the section of control block 4a is that rectangle and can slide up and down is located in through-flow window 31, controls
The flow-conveying groove 41 of rectangle is equipped in block 4a, the left and right ends of control block 4a are symmetrically equipped with the left connection being connected with flow-conveying groove 41
Window 43 is connected to window 42 with right, and the top of left connection window 43 is equipped with the second inclined-plane 431, and the lower part of left connection window 43 is equipped with left stop block
432, the top of right connection window 42 is equipped with third inclined-plane 421, and the lower part of right connection window 42 is equipped with right stop block 422.
Compression bar 5, compression bar 5 are moved up and down to drive control bar 4, and straight pin, the cylinder are radially equipped on pull rod 4b
Pin is plugged in the sliding groove 51 of 5 one end of compression bar, and the middle part of compression bar 5 is hinged on handle 92.It is equipped between compression bar 5 and handle 92
One end of torsional spring 10, torsional spring 10 contradicts on handle 92, and the other end contradicts on compression bar 5 for forcing compression bar 5 to rotate down.
When control-rod 4 is located at the top position, the drive block 64 of left flap be located in left connection window 43 and its right end with
Left stop block 432 offsets, and the drive block 64 of right flap is located in right connection window 42 and its left end offsets with right stop block 422；When
When control-rod 4 is moved downward by the top position, the drive with left flap and right flap respectively of left stop block 432, right stop block 422
Motion block 64 is detached from, and then the second inclined-plane 431 is contacted with the first inclined-plane 641 of left flap pushes left flap 6a to 3 centre of sphere of valve ball
Position is mobile, while third inclined-plane 421 contacts with the first inclined-plane 641 of right flap and pushes right flap 6b to the position of 3 centre of sphere of valve ball
Set movement.
The working principle of the invention and process are as follows:
As shown in Fig. 2, valve ball 3 is in the closed position at this time, compression bar 5 is under the active force of torsional spring 10 and rotates down position
It sets and the top position has been arrived into the drawing of control-rod 4, the drive block 64 of left flap is located in left connection window 43 and its right end and left backstop
Block 432 offsets, and the drive block 64 of right flap is located in right connection window 42 and its left end offsets with right stop block 422, through-flow window 31
Axis it is vertical with the axis of first runner 2a1 and second flow channel 2b1, left flap 6a is located at the left end of left valve chamber 3a, left valve
The spherical seal surface 61 of valve 6a, which is pressed on left valve seat 8a, forms sealing, and right flap 6b is located at the right end of right valve chamber 3b, right valve
The spherical seal surface 61 of valve 6b, which is pressed on right valve seat 8b, forms sealing, and first runner 2a1 and second flow channel 2b1 are obstructed.
When needing to open valve ball 3, as shown in figure 3, pinching compression bar 5 upwards with hand first, then compression bar 5 drives control-rod 4
It moves down, left stop block 432, right stop block 422 are detached from the drive block 64 of left flap and right flap respectively, and then second tiltedly
Face 431 is contacted with the first inclined-plane 641 of left flap pushes left flap 6a mobile to the position of 3 centre of sphere of valve ball, while third inclined-plane
421 contact the right flap 6b of promotion with the first inclined-plane 641 of right flap to the movement of the position of 3 centre of sphere of valve ball.The edge left flap 6a in this way
Left valve chamber 3a move disengaging and the contact of left valve seat 8a to the direction of the centre of sphere, right flap 6b is along right valve chamber 3b to the side of the centre of sphere
It is detached from and the contact of right valve seat 8b to movement.Then it grasps compression bar 5 and handle 92 rotates 90 degree, as shown in figure 4, through-flow window
31 axis is overlapped with the axis of first runner 2a1 and second flow channel 2b1, and first runner 2a1 passes through through-flow window 31 and second
Road 2a2 is connected.Then, compression bar 5 is unclamped, as shown in Figure 6, Figure 7, in torsional spring 10, the active force of left spring 7a and right spring 7b
Under, left flap 6a is again fully extended to be arrived outside left valve chamber 3a, and right flap 6b is again fully extended to be arrived outside right valve chamber 3b.In this way, in valve ball 3
In opening process, left flap 6a and left valve seat 8a is without friction, without abrasion, right flap 6b and right valve seat 8b without friction, without abrasion.
When needing valve ball 3 going to closing by unlatching, compression bar 5 is pinched upwards with hand first, then compression bar 5 drives control-rod 4
It moves down, left stop block 432, right stop block 422 are detached from the drive block 64 of left flap and right flap respectively, and then second tiltedly
Face 431 is contacted with the first inclined-plane 641 of left flap pushes left flap 6a mobile to the position of 3 centre of sphere of valve ball, while third inclined-plane
421 contact the right flap 6b of promotion with the first inclined-plane 641 of right flap to the movement of the position of 3 centre of sphere of valve ball, and flap 6a left in this way is again
It is fully retracted in left valve chamber 3a, right flap 6b is fully retracted to again in right valve chamber 3b.Then compression bar 5 and handle 92 are grasped
After opposite direction is rotated by 90 °, as shown in Fig. 2, the axis of the axis of through-flow window 31 and first runner 2a1 and second flow channel 2b1 hang down
Directly, first runner 2a1 and second flow channel 2a2 are obstructed, compression bar 5 are then unclamped, in torsional spring 10, the work of left spring 7a and right spring 7b
Under firmly, making left flap 6a by the promotion of control-rod 4, fully extended arrive outside left valve chamber 3a forms sealing with left valve seat 8a again, right
Flap 6b is again fully extended to be sealed to outer formed with right valve seat 8b of right valve chamber 3b.In this way, in 3 closing process of valve ball, left flap
6a and left valve seat 8a is without friction, without abrasion, right flap 6b and right valve seat 8b without friction, without abrasion.
Claims (6)
1. a kind of improved ball valve, it is characterised in that: including
Valve body (1), valve body (1) is interior to be equipped with along the perforative cavity in left and right (101)；
Left valve deck (2a), left valve deck (2a) are fixedly mounted on the left end of valve body (1), are equipped with and cavity (101) in left valve deck (2a)
The first runner (2a1) being connected；
Right valve deck (2b), right valve deck (2b) are fixedly mounted on the right end of valve body (1), are equipped with and cavity (101) in right valve deck (2b)
The second flow channel (2b1) being connected；
Valve ball (3), valve ball (3) is rotatable to be located in cavity (101), and the left and right ends of valve ball (3) are symmetrically arranged with left valve chamber
(3a) and right valve chamber (3b), the interior through-flow window (31) for being equipped with perforative rectangle of valve ball (3), valve ball (3) is interior to be equipped with to be connected to a left side
The left connection slot of valve chamber (3a) and through-flow window (31) is equipped in valve ball (3) to be connected to right valve chamber (3b) and through-flow window (31)
The section of right connectivity slot, the left connection slot and right connectivity slot is all rectangular；
Shaft (9), shaft (9) include bull stick (91) and handle (92), the rotatable top for being located at valve body (1) of bull stick (91),
The lower part of bull stick (91) is fixedly connected with valve ball (3), and the top of bull stick (91) reaches valve body (1) outside, and handle (92) is along bull stick
(91) the top for being radially arranged in bull stick (91), bull stick (91) is interior to be equipped with the bull stick through-hole axially penetrated through；
Left flap (6a) and right flap (6b), what left flap (6a) can horizontally slip is located in left valve chamber (3a), right flap (6b)
What can be horizontally slipped is located in right valve chamber (3b), and left flap (6a) is identical with right flap (6b) structure, includes sequentially connected
Spherical seal surface (61), cylindrical body (62), rectangular connecting rod (63) and drive block (64), wherein cylindrical body (62) and left valve
Chamber (3a) or right valve chamber (3b) are slidably matched, and connecting rod (63) is slidably matched with left connection slot or right connectivity slot, drive block (64)
In through-flow window (31) and it which is provided with the first inclined-plane (641)；
Control-rod (4), control-rod (4) include from top to bottom sequentially connected pull rod (4b) and control block (4a), and pull rod (4b) can
What is slided up and down is located in the bull stick through-hole, and the section of control block (4a) is rectangle and can slide up and down and be located at through-flow window
(31) in, the flow-conveying groove (41) of rectangle is equipped in control block (4a), the left and right ends of control block (4a) are symmetrically equipped with and overcurrent
The left connection window (43) that slot (41) is connected is connected to window (42) with right, and the top of left connection window (43) is equipped with the second inclined-plane (431),
The lower part of left connection window (43) is equipped with left stop block (432), and the top of right connection window (42) is equipped with third inclined-plane (421), right company
The lower part of logical window (42) is equipped with right stop block (422)；
When control-rod (4) is located at the top position, the drive block (64) of left flap is located in left connection window (43) and its right end
It offsets with left stop block (432), the drive block (64) of right flap is located in right connection window (42) and its left end and right stop block
(422) it offsets；When control-rod (4) is moved downward by the top position, left stop block (432), right stop block (422) respectively with
The drive block (64) of left flap and right flap is detached from, and then the second inclined-plane (431) contact with the first inclined-plane (641) of left flap and push away
It is mobile to the position of valve ball (3) centre of sphere to move left flap (6a), while the first inclined-plane (641) of third inclined-plane (421) and right flap
Contact pushes right flap (6b) mobile to the position of valve ball (3) centre of sphere.
2. improved ball valve according to claim 1, it is characterised in that: be equipped in left valve chamber (3a) to push left flap
Left spring (7a) (6a) mobile to the position far from valve ball (3) centre of sphere, right valve chamber (3b) is interior to be equipped with to push right flap
Right spring (7b) (6b) mobile to the position far from valve ball (3) centre of sphere.
3. improved ball valve according to claim 2, it is characterised in that: left spring (7a) and right spring (7b) are all butterfly
Spring.
4. improved ball valve according to claim 1, it is characterised in that: be equipped with left valve seat in the left valve deck (2a)
Spherical seal surface (61) sealing of (8a), left valve seat (8a) and left flap (6a) cooperate；Right valve is equipped in the right valve deck (2b)
Spherical seal surface (61) sealing of seat (8b), right valve seat (8b) and right flap (6b) cooperates.
5. improved ball valve according to claim 1, it is characterised in that: further include compression bar (5), compression bar (5) is to drive
Control-rod (4) moves up and down, and straight pin is radially equipped on pull rod (4b), and the straight pin is plugged on the cunning of compression bar (5) one end
In dynamic slot (51), it is hinged in the middle part of compression bar (5) on handle (92).
6. improved ball valve according to claim 5, it is characterised in that: be equipped between the compression bar (5) and handle (92)
One end of torsional spring (10), torsional spring (10) contradicts on handle (92), and the other end contradicts on compression bar (5) for forcing compression bar (5)
It rotates down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533821.4A CN110159785B (en) | 2019-06-19 | 2019-06-19 | Improved ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533821.4A CN110159785B (en) | 2019-06-19 | 2019-06-19 | Improved ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159785A true CN110159785A (en) | 2019-08-23 |
| CN110159785B CN110159785B (en) | 2021-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910533821.4A Active CN110159785B (en) | 2019-06-19 | 2019-06-19 | Improved ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159785B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173951A (en) * | 2020-02-04 | 2020-05-19 | 宁波文泽机电技术开发有限公司 | Gate valve |
| CN111396572A (en) * | 2020-03-26 | 2020-07-10 | 韩国昊 | Butterfly valve |
| CN111765265A (en) * | 2020-07-07 | 2020-10-13 | 宁波真格液压科技有限公司 | Plug valve |
| CN111795171A (en) * | 2020-07-03 | 2020-10-20 | 东莞海特帕沃液压科技有限公司 | Ball valve with long service life |
| CN112066027A (en) * | 2020-09-09 | 2020-12-11 | 替科斯科技集团天津流体设备有限公司 | Heat supply abrasion-resistant ball valve |
| CN112096906A (en) * | 2020-07-27 | 2020-12-18 | 西安交通大学 | Telescopic frictionless ball valve driven by cooperation of linear motor and rotating motor |
| CN113803490A (en) * | 2021-11-01 | 2021-12-17 | 陈功强 | Semi-ball valve |
| CN115031034A (en) * | 2022-06-07 | 2022-09-09 | 阿伐流体控制有限公司 | Wear-resisting C type ball valve |
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| KR20100027535A (en) * | 2008-09-02 | 2010-03-11 | 이병순 | Twin disc moving type valve |
| CN103104715A (en) * | 2013-02-04 | 2013-05-15 | 精工阀门有限公司 | Double-plate type ball valve |
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| CN111765265B (en) * | 2020-07-07 | 2023-09-29 | 盐城市精工阀门有限公司 | Plug valve |
| CN112096906A (en) * | 2020-07-27 | 2020-12-18 | 西安交通大学 | Telescopic frictionless ball valve driven by cooperation of linear motor and rotating motor |
| CN112096906B (en) * | 2020-07-27 | 2023-01-03 | 西安交通大学 | Telescopic frictionless ball valve driven by cooperation of linear motor and rotating motor |
| CN112066027A (en) * | 2020-09-09 | 2020-12-11 | 替科斯科技集团天津流体设备有限公司 | Heat supply abrasion-resistant ball valve |
| CN112066027B (en) * | 2020-09-09 | 2022-03-18 | 替科斯科技集团丽水流体设备有限公司 | Heat supply abrasion-resistant ball valve |
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| CN115031034A (en) * | 2022-06-07 | 2022-09-09 | 阿伐流体控制有限公司 | Wear-resisting C type ball valve |
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