CN209569361U - A kind of valve rod base and without abrasion fluid erosion prevention clutch valve - Google Patents
A kind of valve rod base and without abrasion fluid erosion prevention clutch valve Download PDFInfo
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- CN209569361U CN209569361U CN201920011373.7U CN201920011373U CN209569361U CN 209569361 U CN209569361 U CN 209569361U CN 201920011373 U CN201920011373 U CN 201920011373U CN 209569361 U CN209569361 U CN 209569361U
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- Prior art keywords
- valve
- valve rod
- sealing surface
- closing
- opening
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Abstract
The utility model discloses a kind of valve rod base and without abrasion fluid erosion prevention clutch valve, valve rod and valve stem nut are equipped in the inserting hole of valve rod base, valve rod is connect by valve stem nut with valve rod base, wherein: interspersed hole wall is equipped with the horizontal guide grooves and vertical guide slot communicated, valve rod is equipped with rolling bearing, and valve rod can drive rolling bearing to roll along horizontal guide grooves, vertical guide slot.The utility model provides long service life, ON/OFF torque is small, flow resistance coefficient is small, energy-saving effect is good and manufacture, installation, maintenance are convenient a kind of without abrasion fluid erosion prevention clutch valve, solves the problems, such as the destruction of abrasion (scratch) and the erosion (washing away, cavitation) of valve.
Description
Technical field
The utility model relates to a kind of valves, more specifically more particularly to a kind of valve rod base and without abrasion fluid erosion prevention from
Close valve.
Background technique
Service life is valve mass important technology index.It closes secondary (valve body and opening and closing element) closed performance and determines that valve makes
Use the service life.It closes secondary abrasion (scratch) and is the principal mode of destruction closed performance by erosion.Make a general survey of current fluid engineering institute
The stop valve of use not yet finds the valve small without abrasion, fluid erosion prevention, operational torque.
At present valve there are the problem of: 1, the secondary abrasion of closing, current valve are waited such as gate valve, ball valve because closing pair has
Relative motion, inevitably generates abrasion during opening or closing, and serious scratch (even if more small scratch) will
So that valve is lost closed performance, needs replacing or repair.
2, the secondary erosion of closing, valve opening or turn-off transient close secondary formation very little gap, and flow velocity is big at this time, to envelope
It closes by-produced erosion and cavitation to destroy, closure member is directly impacted when especially having grit in High Pressure Difference, fluid or liquid is situated between
Matter partial vaporization and gas-liquid blasting impact generate cavitation.It is more serious rapidly in the case.Such as gate valve and ball valve, it is opening
With the moment of closing, runner becomes smaller, and forms erosion, and it is secondary to destroy closing.
3, operational torque problem, the operational torque of universal valve ON/OFF be all it is very big, sometimes need Lengthened wrench, or
By applied force, such as turbine and worm, pneumatic, electric device.Either gate valve, shut-off valve or ball valve are all such.Thus also accelerate
The secondary destruction of closing.
The approach to solve the above problems designs at present, the service life that the valve products of production are raising valve is mostly to adopt
With mode the following:
1, closing uses expensive (such as chromium base or nickel alloy)；
2, the secondary pairing of the reasonable closing of selection, the intermetallic difference of hardness of pairing or two such as different materials；
3, machining accuracy is improved；
4, make the improvement in some structures；
Suchlike method all fails to solve the problems, such as from basic.
Utility model content
The technical problems to be solved in the utility model is the above-mentioned deficiency for the prior art, provides long service life, open/
Close that torque is small, flow resistance coefficient is small, energy-saving effect is good and a kind of convenient valve rod base and without wearing fluid erosion prevention of manufacture, installation, maintenance
Clutch valve solves the problems, such as the destruction of abrasion (scratch) and the erosion (washing away, cavitation) of valve.
A kind of valve rod base, valve rod and valve stem nut are equipped in the inserting hole of valve rod base, and valve rod passes through valve stem nut and valve rod
Seat connection, in which: interspersed hole wall is equipped with the horizontal guide grooves and vertical guide slot communicated, and valve rod is equipped with rolling bearing, and valve rod can band
Dynamic rolling bearing is rolled along horizontal guide grooves, vertical guide slot.
The utility model using the above structure, when valve rod is gone up and down, drives rolling bearing to roll in vertical guide slot, along vertical
Guide groove lifting；When valve rod rotates, rolling bearing is rolled to horizontal guide grooves from vertical guide slot, drives rolling bearing in horizontal guide grooves
It rolls, is rotated along horizontal guide grooves.
Above-mentioned valve rod base, horizontal guide grooves are arranged above vertical guide slot.
Above-mentioned valve rod base, valve rod base and valve body are connected by bolt.Valve body is not needed when maintenance to remove from pipeline
It can repair, avoid influence of the pipe stress to valve performance.
It is a kind of without abrasion fluid erosion prevention clutch valve, including valve body, rotational valve core, valve rod, valve rod are rotatablely connected rotational valve core, valve
Body is equipped with the valve rod base.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, and valve body is equipped with input port and delivery outlet, and rotational valve core is equipped with channel,
Channel two sides form input sealing surface and output sealing surface, and valve rod connects rotational valve core rotation switching, when rotated input closing
Face and output sealing surface sequence close/open input port and delivery outlet.
The utility model using the above structure, due to input sealing surface and output sealing surface between formed it is non-concurrent open/
It is closed to rotarily open or closed error angle (differential seat angle of opening and closing of fault), it is first to pass through the rotary shifted angle formed when rotation
Misplace closing/unlatching input port and delivery outlet afterwards.Due to forming non-concurrent unlatching/envelope between input sealing surface and output sealing surface
The angular displacement of the rotary opening and closing closed, i.e. input closing face closure/unlatching input port and output closing face closure/unlatching export the degree of lip-rounding
It is opened or traling at non-concurrent rotation, forms the opening angle of dislocation therebetween.When Open valve, output sealing surface first opens delivery outlet,
Input port is opened after input sealing surface, when closing valve, input sealing surface first closes input port, output sealing surface rear enclosed output
Mouthful.Valve rod connects rotational valve core, and when opening or closing valve, valve rod drives rotational valve core rotation switching.When setting opening angle
When less than 20 °, when the opening angle of rotational valve core is less than 20 °, exports the gap for having very little between sealing surface and delivery outlet and lead to
Road connection, input sealing surface and input port closing connect.When the opening angle of rotational valve core be greater than 20 ° when, input sealing surface with
There is small―gap suture to be connected to channel between input port, the circulation area exported between sealing surface and delivery outlet is very big, and velocity of medium is small,
The secondary destruction of closing to delivery outlet reduces, and realizes anti-wear and erosion purpose.
Above-mentioned is a kind of without fluid erosion prevention clutch valve is worn, and valve rod and rotational valve core pass through rotating card block and be rotatablely connected.Valve rod
It is equipped with rotating card block, realizes that valve rod drives the purpose of rotational valve core rotation.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, and rotational valve core includes going up and down flashboard and being connected to go up and down flashboard side
Opening and closing element, channel setting lifting flashboard in, opening and closing element outer surface constitute input sealing surface or output sealing surface, valve rod connection
Go up and down flashboard, lifting flashboard connection opening and closing element mobile handoff (stretching out or shrink switching).The unilateral setting of opening and closing element is closed in input
Face or output sealing surface；When opening valve, valve rod drives lifting flashboard to move upwards, and lifting flashboard drives opening and closing element level to receive
Contracting, then valve rod is driving rotational valve core, lifting flashboard, opening and closing element to rotate in valve body, opening and closing element during rotation not with
The by-produced friction of closing of input port and/delivery outlet；When closing valve, valve rod rotation drives rotational valve core, lifting flashboard, opening and closing
Part rotates backward in valve body, between the closing pair that opening and closing element is in contraction state, the radius of gyration and input port and/delivery outlet has
Gap, so that, not with the by-produced friction of the closing of input port and/delivery outlet, then valve rod drives lifting in opening and closing element rotation process
Flashboard decline, lifting flashboard decline drive opening and closing element to stretch out the closing pair for being close to input port and/delivery outlet until reaching closing；In
During the entire process of opening and closing, only by vertical sealing surface between opening and closing element and input port and the closing pair of/delivery outlet
Normal pressure, without frictionally damage.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, and delivery outlet is closed equipped with primary seal, and input port is equipped with secondary closing, input envelope
It closes face and exports secondary close in sealing surface elder generation rear enclosed/unlatching input port and closed with the primary seal of delivery outlet.When Open valve, output envelope
It closes face and first opens the primary seal of delivery outlet and close, input after sealing surface and open the secondary closing of input port；When closing valve, sealing surface is inputted
The secondary closing of input port is first closed, the primary seal of output sealing surface rear enclosed delivery outlet is closed.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, and lifting flashboard is equipped with T-slot, and valve rod lower end matches with T-slot
Connection.Realize the purpose of valve rod connection lifting flashboard.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, and lifting flashboard is equipped with the dovetail of gradient, and opening and closing element is equipped with dovetail
Slot, dovetail match with dovetail groove and are slidably connected.When Open valve, valve rod drives lifting flashboard to rise, and lifting flashboard passes through
Dovetail along dovetail groove rise, dovetail groove is gradient, and dovetail matches with dovetail groove, lifting flashboard rising when opening and closing element gradually
It is mobile to lifting flashboard, realize the purpose that opening and closing element is shunk, valve rod is rotatably connected rotational valve core, drives rotational valve core, lifting
Flashboard, opening and closing element rotate 90 ° to channel all-pass in valve body, and opening and closing element does not close generation friction with primary seal during rotation；It closes
When valve closing door, valve rod rotation drives rotational valve core, lifting flashboard, opening and closing element to rotate backward 90 ° in valve body, and opening and closing element, which is in, to be received
Contracting state, the radius of gyration and master are closed with gap, so that during opening and closing element rotates 90 °, whole no and valve body contact is not produced
Raw friction, then valve rod drives lifting flashboard to decline, and lifting flashboard decline drives opening and closing element to stretch out abutting primary seal and closes until reaching
Closing.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, and valve rod upper end is equipped with handwheel.By the lifting of handwheel band ovable valve stem, turn
It is dynamic.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, input sealing surface and output sealing surface rotary opening and closing angle sequence 5
~35 degree.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, and channel is rectangle or circle, and aisle spare is greater than or equal to pipeline
Flow area.Flow resistance coefficient is small, and energy-saving effect is good.
Above-mentioned is a kind of without abrasion fluid erosion prevention clutch valve, and dovetail and dovetail groove upper end are inclined outwardly setting.Realize lifting
Opening and closing element is gradually moved horizontally to lifting flashboard when flashboard rises, the purpose that opening and closing element is shunk；Realize that lifting flashboard decline drives
Opening and closing element, which stretches out, is close to main closed purpose；During the entire process of avoiding valve opening and closing, opening and closing element is closed with primary seal and/pair
Closing generates friction.
The utility model has the beneficial effects that
1, reliable closing is realized and without abrasion:
The inclined-plane that lifting flashboard matches with opening and closing element (flap) setting two sides, when closing is required, valve rod drives lifting
Flashboard moves downward.The horizontal component of section compresses valve body, and sealing surface is made to reach enough closings than pressure, to reach reliable
Closing.It is now in closed state.Closing is secondary to be only squeezed, it is well known that metal material can bear very big ratio pressure and
It does not destroy.
When needing to open, lifting flashboard is moved upwards, and drives opening and closing element to move horizontally by another inclined-plane, closing it is secondary with
Opening and closing element does not contact, and there is gap appropriate always, and 90 ° of energy reaches standard-sized sheet when reaching horizontal guide grooves.Then opposite direction is closed to revolve
Turn.Because closing is secondary to have gap with opening and closing element during this ON/OFF, closing pair can not generate scratch phenomenon, open/
The torque for closing rotation is also very little, and here it is reasons without abrasion.
2, erosion is prevented
Erosion have more now switches on moment or close end moment, gap is small at this time, and flow velocity is big, closing pair be easy to by
It is destroyed to water impact, current universal valve is the generation that not can avoid this phenomenon, and the utility model can prevent from rushing well
Lose phenomenon.
When ON/OFF is rotated less than 20 °, delivery outlet and primary seal close between only very little gap, belong to labyrinth sealing, be situated between
Mass flow is dynamic slowly, and closing destruction to primary seal is very little, when rotation is greater than 20 °, has small―gap suture between input port and secondary closing, but
Delivery outlet and primary seal close between circulation area it is very big, flow velocity is small, and the destruction secondary to closing reduces.
3, operational torque is small
The small torque of ON/OFF process is always obvious.Closing load and the operating force for unclamping flap are larger, but size
In gate valve, ball valve is especially less than closed firmly.The reason is that the utility model is monocline face through load, and two closings of gate valve are secondary all
It is inclined-plane, two-sided sealing effect is kept then to increase axial force.
Detailed description of the invention
Below in conjunction with the embodiment in attached drawing, the utility model is described in further detail, but does not constitute to this
Any restrictions of utility model.
Fig. 1 is the schematic perspective view of the utility model valve closed state；
Fig. 2 is the structural schematic diagram of the utility model valve closed state；
Fig. 3 is the A-A the schematic diagram of the section structure of Fig. 2；
Fig. 4 is the B-B the schematic diagram of the section structure of Fig. 2；
Fig. 5 is the schematic perspective view of the utility model valve open state；
Fig. 6 is the structural schematic diagram of the utility model valve open state；
Fig. 7 is the C-C the schematic diagram of the section structure of Fig. 6；
Fig. 8 is the D-D the schematic diagram of the section structure of Fig. 6；
Fig. 9 is the schematic perspective view of the utility model lifting flashboard；
Figure 10 is the schematic perspective view of the utility model opening and closing element；
Figure 11 is the schematic perspective view of the utility model valve rod base；
Figure 12 is the top cross-sectional view of the utility model valve closed state；
Figure 13 is 20 ° of the utility model valve opening angle of top cross-sectional view；
Figure 14 is 25 ° of the utility model valve opening angle of top cross-sectional view；
Figure 15 is 45 ° of the utility model valve opening angle of top cross-sectional view；
Figure 16 is the top cross-sectional view that the utility model valve is all turned on state.
Specific embodiment
Refering to fig. 1 to shown in Figure 16, a kind of valve rod base of the utility model is equipped with 3 He of valve rod in the inserting hole of valve rod base 6
Valve stem nut 63, valve rod 3 connects by valve stem nut 63 with valve rod base 6, intert hole wall equipped with the horizontal guide grooves (61) communicated and
Vertical guide slot 62, valve rod 3 are equipped with rolling bearing 52, and valve rod 3 can drive rolling bearing 52 along horizontal guide grooves 61, vertical guide slot 62
It rolls.
Horizontal guide grooves 61 are arranged above vertical guide slot 62.
Valve rod base 6 is connected with valve body 1 by bolt.
It is a kind of without abrasion fluid erosion prevention clutch valve, including valve body 1, rotational valve core 2, valve rod when the utility model is embodied
3, valve body 1 is equipped with input port 11 and delivery outlet 12, and rotational valve core 2 is equipped with 21 channel of channel, 21 side and forms input 22 He of sealing surface
The other side forms output sealing surface 23, and valve rod 3 connects the rotation switching of rotational valve core 2, in which: input sealing surface 22 and output closing
Formed between face 23 it is non-concurrent open/closed rotary opening and closing angle R2, when rotation, successively misplaces closing/unlatching input port 11 and defeated
Outlet 12.
Rotational valve core 2 includes lifting flashboard 4 and the opening and closing element 5 for being connected to lifting 4 side of flashboard, and channel 21 is horizontally set on
It goes up and down in flashboard 4,5 outer surface of opening and closing element constitutes output sealing surface 23, the connection lifting flashboard 4 of valve rod 3, and the lifting connection of flashboard 4 is opened
Closing member 5 stretch out or shrink switching, input sealing surface 22 setting with the symmetrical other side of opening and closing element 5.
Delivery outlet 12 is equipped with primary seal and closes 13, and input port 11 is equipped with secondary closing 14, input sealing surface 22 and output sealing surface 23
The primary seal of the secondary closing 14 in first rear enclosed/unlatching input port 11 and delivery outlet 12 closes 13.
Input sealing surface 22 and output 23 5~35 degree of rotary opening and closing angle sequence of sealing surface.
Valve rod 3 and rotational valve core 2 are rotatablely connected by rotating card block 31.
Channel 21 is rectangle or circle, and 21 area of channel is greater than or equal to pipeline flow area.
It goes up and down flashboard 4 and is equipped with T-slot 42,3 lower end of valve rod matches with T-slot 42 to be connect.
The dovetail 41 that flashboard 4 is equipped with gradient is gone up and down, opening and closing element 5 is equipped with dovetail groove 51, dovetail 41 and 51 phase of dovetail groove
It is slidably connected with suitable.
Dovetail 41 and 51 upper end of dovetail groove are inclined outwardly setting.
3 upper end of valve rod is equipped with handwheel 7.
When the utility model is specifically used, opens or closes in input sealing surface 22 and to export sealing surface 23 non-adjacent close
Switch between edge sealing, forms error angle R2.Wherein when opening, exports and form dislocation between sealing surface 23 and delivery outlet sealing edge
Angle R2, and input between sealing surface and the sealing edge of input port in (critical state of unlatching) when closed state, pass through mistake therebetween
Parallactic angle constitutes delivery outlet and the successive of input port opens or closes.It is then reversed with unlatching phase when closing.
When setting the error angle R2 of rotary opening and closing as 12 °.When the opening angle R1 of rotational valve core is less than 20 °, output closing
The gap (i.e. 8 °) for having very little between face 23 and delivery outlet 12 is connected to channel, and input sealing surface 22 and the closing of input port 11 connect
Connect state.It is 20 ° of valve opening angle of the present invention as shown in figure 13, wherein output sealing surface 22 first opens delivery outlet 12, and
Sealing surface 22 and input port 11 are inputted still in closed state (being in critical open state).It is valve of the present invention as shown in figure 14
Input sealing surface 22 is just gradually opened with input port 11 when state at 25 ° of opening angle, i.e. opening angle are from 20 ° to 25 °,
Between constitute open gap (i.e. 5 °).Corresponding output sealing surface 22 and delivery outlet 12 open synchronize continue to increase and open, therebetween
Gap (i.e. 13 °) is connected to channel.State when such as Figure 15 being 45 ° of valve opening angle of the present invention, i.e. opening angle from 25 ° to
Sealing surface 22 and input port 11 are inputted at 45 °, output sealing surface 23 and delivery outlet 12 open synchronize continue to increase unlatching；
When Open valve, output sealing surface 22 first opens delivery outlet 11, opens input port 12 after inputting sealing surface 23, closes
When valve, input sealing surface 22 first closes input port 11, exports 23 rear enclosed delivery outlet 12 of sealing surface.The connection rotation valve of valve rod 3
Core 2, when opening or closing valve, valve rod 3 drives the rotation switching of rotational valve core 2.When setting opening angle less than 20 °, rotation
When the opening angle of spool is less than 20 °, exporting between sealing surface and delivery outlet has the gap of very little to be connected to channel, input closing
Face and input port closing connect.When the opening angle of rotational valve core is greater than 20 °, input between sealing surface and input port have it is small between
Gap is connected to channel, and the circulation area exported between sealing surface and delivery outlet is very big, and velocity of medium is small, to the closing pair of delivery outlet
Destruction reduce, realize the purpose of anti-wear and erosion.
It is that valve of the present invention is all turned on state as shown in figure 16.When being all turned on valve, valve rod 3 drives rolling bearing 52
It rolls in vertical guide slot 62, rises along vertical guide slot 62, lifting flashboard 4 is driven to rise, lifting flashboard 4 passes through 41 edge of dovetail
Dovetail groove 51 rise, dovetail groove 51 is gradient, and dovetail 41 matches with dovetail groove 51, lifting flashboard 4 rising when opening and closing element 5 by
It is gradually mobile to lifting flashboard 4, shrink opening and closing element 5；Valve rod 3 drives rolling bearing 52 to roll in horizontal guide grooves 61, along level
Guide groove 61 rotates, and rotational valve core 2, lifting flashboard 4, opening and closing element 5 is driven to rotate in valve body 1, rotational valve core 2, lifting flashboard 4,
Opening and closing element 5 rotates 90 ° to channel all-pass, valve opening in valve body 1.
Figure 12 is valve completely closed state of the present invention.When completely closing valve, valve rod 3 drives rolling bearing 52 in level
It rolls in guide groove 61, is rotated backward along horizontal guide grooves 61, drive rotational valve core 2, lifting flashboard 4, opening and closing element 5 anti-in valve body 1
To 90 ° of rotation, opening and closing element 5 be in contraction state, the radius of gyration and primary seal close 13 and/pair close 14 and have gap so that opening and closing element 5
During 90 ° of rotation, whole process do not closed with primary seal 13 and/secondary closing 14 contact, do not generate friction, then the drive of valve rod 3 rolling
Bearing 52 rolls in vertical guide slot 62, declines along vertical guide slot 62, and lifting flashboard 4 is driven to decline, and the lifting decline of flashboard 4 drives
Opening and closing element 5 stretches out abutting primary seal and closes 13 until reaching closing.
In conclusion the utility model is made actual sample and test is used for multiple times such as specification and diagramatic content,
Judging from the effect of using the test, provable the utility model can reach its desired purpose, and practical value is unquestionable.
Embodiment provided above is only used to facilitate illustration the utility model, not makees limit in any form to the utility model
System, any those of ordinary skill in the art, if in the range of not departing from the utility model mentioned technical characteristic,
Using the equivalent embodiment for locally changing or modifying made by the utility model disclosed technology content, and it is practical without departing from this
Novel technical feature content, in the range of still falling within the utility model technical characteristic.
Claims (10)
1. a kind of valve rod base, valve rod (3) and valve stem nut (63) are equipped in the inserting hole of valve rod base (6), valve rod (3) passes through valve rod
Nut (63) is connect with valve rod base (6), it is characterised in that: interspersed hole wall is equipped with the horizontal guide grooves (61) and vertical guide slot communicated
(62), valve rod (3) is equipped with rolling bearing (52), and valve rod (3) can drive rolling bearing (52) to lead along horizontal guide grooves (61), vertically
Slot (62) rolls.
2. valve rod base according to claim 1, it is characterised in that: horizontal guide grooves (61) are arranged on vertical guide slot (62)
Side.
3. valve rod base according to claim 1, it is characterised in that: valve rod base (6) is connected with valve body (1) by bolt.
4. a kind of without abrasion fluid erosion prevention clutch valve, including valve body (1), rotational valve core (2), valve rod (3), valve rod (3) rotation connection
Rotational valve core (2), it is characterised in that: valve body (1) is equipped with any valve rod base (6) of claims 1 to 3.
5. according to claim 4 a kind of without abrasion fluid erosion prevention clutch valve, it is characterised in that: valve rod (3) and rotational valve core
(2) it is rotatablely connected by rotating card block (31).
6. according to claim 4 a kind of without abrasion fluid erosion prevention clutch valve, it is characterised in that: valve body (1) is equipped with input port
(11) and delivery outlet (12), rotational valve core (2) are equipped with channel (21), and channel (21) two sides form input sealing surface (22) and export
Sealing surface (23), valve rod (3) connect rotational valve core (2) rotation switching, input sealing surface (22) and output sealing surface when rotated
(23) input port (11) and delivery outlet (12) are closed/opened to sequence.
7. according to claim 4 a kind of without abrasion fluid erosion prevention clutch valve, it is characterised in that: rotational valve core (2) includes rising
Drop flashboard (4) and the opening and closing element (5) for being connected to lifting flashboard (4) side, channel (21) setting is in lifting flashboard (4), opening and closing
Part (5) outer surface constitutes input sealing surface (22) or output sealing surface (23), and valve rod (3) connection lifting flashboard (4) goes up and down flashboard
(4) connection opening and closing element (5) moves horizontally switching.
8. according to claim 6 or 7 a kind of without abrasion fluid erosion prevention clutch valve, it is characterised in that: delivery outlet (12) is equipped with
Primary seal is closed (13), and input port (11) are equipped with secondary closing (14), and input sealing surface (22) and output sealing surface (23) elder generation rear enclosed/open
The primary seal of the secondary closing (14) and delivery outlet (12) of opening input port (11) closes (13).
9. according to claim 8 a kind of without abrasion fluid erosion prevention clutch valve, it is characterised in that: lifting flashboard (4) is equipped with T-type
Slot (42), valve rod (3) lower end match with T-slot (42) and connect.
10. a kind of without abrasion fluid erosion prevention clutch valve according to claim 7 or 9, it is characterised in that: lifting flashboard (4) is set
Gradient dovetail (41), opening and closing element (5) are equipped with dovetail groove (51), and dovetail (41) and dovetail groove (51) sliding that matches connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920011373.7U CN209569361U (en) | 2019-01-01 | 2019-01-01 | A kind of valve rod base and without abrasion fluid erosion prevention clutch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920011373.7U CN209569361U (en) | 2019-01-01 | 2019-01-01 | A kind of valve rod base and without abrasion fluid erosion prevention clutch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569361U true CN209569361U (en) | 2019-11-01 |
Family
ID=68331612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920011373.7U Expired - Fee Related CN209569361U (en) | 2019-01-01 | 2019-01-01 | A kind of valve rod base and without abrasion fluid erosion prevention clutch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488780A (en) * | 2019-01-01 | 2019-03-19 | 广州市昊封流体工程技术有限公司 | It is a kind of without abrasion fluid erosion prevention clutch valve |
-
2019
- 2019-01-01 CN CN201920011373.7U patent/CN209569361U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488780A (en) * | 2019-01-01 | 2019-03-19 | 广州市昊封流体工程技术有限公司 | It is a kind of without abrasion fluid erosion prevention clutch valve |
| CN109488780B (en) * | 2019-01-01 | 2023-11-07 | 广州市昊封流体工程技术有限公司 | Abrasion-free anti-erosion clutch valve |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191101 Termination date: 20220101 |