CN109944978A - A kind of high efficiency extruding formula automatic-sealed gate valve - Google Patents
A kind of high efficiency extruding formula automatic-sealed gate valve Download PDFInfo
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- CN109944978A CN109944978A CN201910349860.9A CN201910349860A CN109944978A CN 109944978 A CN109944978 A CN 109944978A CN 201910349860 A CN201910349860 A CN 201910349860A CN 109944978 A CN109944978 A CN 109944978A
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Abstract
The invention discloses a kind of high efficiency extruding formula automatic-sealed gate valves, including gate valve ontology, valve rod and locating piece, valve rod is installed on the inside of the gate valve ontology, the side window inner wall is bonded with cartridge filter avris, and cartridge filter is mounted on gate valve ontology inside bottom, and the bottom end of the valve plate is fixed with bottom plate, and the bottom end of bottom plate is bonded with the upper surface of contact plate, and contact plate is fixed in gate valve ontology, and the contact plate upper surface is fixed with locating piece, and is bonded on the inside of locating piece with bottom plate avris.The high efficiency extruding formula automatic-sealed gate valve, it is designed using novel structure, allow the present apparatus after valve rod rotates control flashboard closure, squeeze self-locking, avoiding valve rod and flashboard from loosening influences leakproofness, and devises extruding location structure, it is further ensured that stability when flashboard closure, removable filter structure is devised simultaneously, and filter structure can also carry out location sealing with combined floodgate plate, guarantee the leakproofness of device entirety.
Description
Technical field
The present invention relates to gate valve technical field, specially a kind of high efficiency extruding formula automatic-sealed gate valve.
Background technique
Gate valve is a kind of valve for carrying out standard-sized sheet and full pass control to internal liquid by flashboard, the direction of motion of flashboard
It is perpendicular with flow direction, rigid gate valve and two kinds of resilient gate valve can be divided into according to the difference of flashboard, according to opening complete mode not
With elevating lever gate valve and swingle gate valve can be divided into again, since the sealing effect of gate valve is better than the valves such as butterfly valve, and Yin Qinei
Portion's medium channel is linear type, and flow resistance is small, and opens and finish convenient, is not likely to produce water hammer and is widely used.
With continuing on for gate valve, traditional gate valve structure design is simple, by water flow suffered by valve plate after valve plate closure
Pressure carries out automatic-sealed, and valve rod and valve plate can not stablize fixation, poor sealing effect, and not have filtering function, is used for a long time,
Easily residual accumulates dirt inside gate valve, influences the normal use of gate valve.So just needing to design regarding to the issue above a kind of efficient
Squash type automatic-sealed gate valve.
Summary of the invention
The purpose of the present invention is to provide a kind of high efficiency extruding formula automatic-sealed gate valves, to solve to mention in above-mentioned background technique
Valve rod and valve plate can not stablize fixation out, and poor sealing effect does not have the problem of filtering function.
To achieve the above object, the invention provides the following technical scheme: a kind of high efficiency extruding formula automatic-sealed gate valve, including
Gate valve ontology, valve rod and locating piece are equipped with valve rod on the inside of the gate valve ontology, and valve rod and the inside for connecting bearing are mutual
Connection, and outside and the top interconnection of work box of bearing are connected, the avris for working at the same time box is fixed with side convex block, described
Side convex block and track groove are connected with each other, and track groove is provided on the inner wall of gate valve ontology, peace at the top of the inner wall of the work box
Side gear and driving gear are fixed with equipped with the first installation axle, and in the first installation axle, and side gear and fixed gear are mutual
Connection, while fixed gear is fixed on valve rod, the driving gear and driven gear are connected with each other, and driven gear is fixed on
Second installation axle top, and the second installation axle is mounted in work box inside bottom surface, is fixed in the middle part of second installation axle
Cam, and the avris of cam is bonded with valve rod, the bottom end of the valve rod is fixed on the inside of base bearing, and the outside of base bearing is fixed
At the top of valve plate, and valve plate and gate valve ontology inside bottom are connected with each other, while valve plate avris offers side window, the side window
Inner wall is bonded with cartridge filter avris, and cartridge filter is mounted on gate valve ontology inside bottom, and strainer is fixed in cartridge filter, institute
The bottom end for stating valve plate is fixed with bottom plate, and the bottom end of bottom plate is bonded with the upper surface of contact plate, and contact plate is fixed on gate valve
In ontology, the contact plate upper surface is fixed with locating piece, and is bonded on the inside of locating piece with bottom plate avris.
Preferably, the valve rod constitutes rotating mechanism by connection bearing and work box, and is symmetrically welded on the outside of the box that works
There are 2 side convex blocks, and side convex block is to be slidably connected with track groove, works at the same time cassette bottom portion opening diameter greater than stem diameter.
Preferably, the side gear is to engage connection, and side gear angularly divides about the center of valve rod with fixed gear
It is furnished with 3.
Preferably, the driving gear is to engage connection, and drive and 2 dentation knots are only distributed on gear with driven gear
Structure, and driven gear and cam are welded in the second installation axle, while cam is the coarse high speed steel wheel of avris.
Preferably, the valve plate constitutes rotating mechanism by base bearing and valve rod, and valve plate faces the top width of section
It is wider than bottom width, and valve plate avris is bonded with gate valve body bottom portion tilt internal wall, while valve plate avris is symmetrically distributed with side
Window.
Preferably, the cartridge filter is to be threadedly coupled, and the outer wall of cartridge filter and the inner wall of side window are close with gate valve ontology
Fitting, and the distance of symmetrical side window lowermost end is equal to the width that valve plate faces section lowermost end.
Preferably, the section of facing of the bottom plate is inverted isosceles trapezoid, and bottom base plate and contact plate top are close
Fitting, and the material of contact plate is Maraging steel.
Preferably, the contact plate and gate valve ontology and locating piece are and are welded to connect, and locating piece is in contact plate upper end
Face is symmetrical, and locating piece is to face the high speed bloom that section is right-angled trapezium.
Compared with prior art, the beneficial effects of the present invention are: the high efficiency extruding formula automatic-sealed gate valve, using novel
Structure design, allow the present apparatus valve rod rotate control flashboard closure after, squeeze it is self-locking, avoid valve rod and flashboard pine
It is dynamic to influence leakproofness, and extruding location structure is devised, it is further ensured that stability when flashboard closure, while devising removable
The filter structure unloaded, and filter structure can also carry out location sealing with combined floodgate plate, guarantee the leakproofness of device entirety；
1. the first installation axle, side gear, driving gear, fixed gear, driven gear, the second installation axle and cam mutual cooperation work
Make, extruding limit can be carried out to the valve rod of drive valve plate movement after valve plate is closed completely, valve rod rotation is avoided to loosen；
2. the structure of valve plate, side window, cartridge filter and strainer composition, when both can guarantee valve plate closure, the leakproofness of device entirety, and
And compared with traditional gate valve, has the function of that filtering intercepts, it is possible to prevente effectively from impurity is retained in gate valve, the normal use of gate valve is made
At influence；
, can be after valve plate closure 3. bottom plate, contact plate and locating piece cooperate with each other, the power band that is pressed down against using valve plate
Dynamic bottom plate squeezes contact plate and generates deformation, to enable the locating piece on contact plate carry out squeezing clamping positioning to bottom plate, further
Guarantee stability when valve plate closure.
Detailed description of the invention
Fig. 1 is that gate valve ontology of the present invention faces the schematic diagram of the section structure；
Fig. 2 is that valve plate of the present invention faces the schematic diagram of the section structure；
Fig. 3 is that the second installation axle of the invention looks up the schematic diagram of the section structure；
Fig. 4 is that present invention work box faces the schematic diagram of the section structure；
Fig. 5 is that cam of the present invention looks up the schematic diagram of the section structure；
Fig. 6 is present invention filtering side elevational cross-section structural schematic diagram；
Fig. 7 is that bottom plate of the present invention faces the schematic diagram of the section structure.
In figure: 1, gate valve ontology；2, valve rod；3, bearing is connected；4, work box；5, side convex block；6, track groove；7, the first peace
Fill axis；8, side gear；9, gear is driven；10, fixed gear；11, driven gear；12, the second installation axle；13, cam；14, bottom
Bearing；15, valve plate；16, side window；17, cartridge filter；18, strainer；19, bottom plate；20, contact plate；21, locating piece.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-7 is please referred to, the present invention provides a kind of technical solution: a kind of high efficiency extruding formula automatic-sealed gate valve, including lock
Valve body 1, valve rod 2, connection bearing 3, work box 4, side convex block 5, track groove 6, the first installation axle 7, side gear 8, driving gear
9, fixed gear 10, driven gear 11, the second installation axle 12, cam 13, base bearing 14, valve plate 15, side window 16, cartridge filter 17,
Strainer 18, bottom plate 19, contact plate 20 and locating piece 21, the inside of gate valve ontology 1 are equipped with valve rod 2, and valve rod 2 with connect bearing
3 inside is connected with each other, and is connected and be connected with each other at the top of the outside and work box 4 of bearing 3, and the avris for working at the same time box 4 is consolidated
Surely there is side convex block 5, side convex block 5 and track groove 6 are connected with each other, and track groove 6 is provided on the inner wall of gate valve ontology 1, and work box 4
Inner wall at the top of the first installation axle 7 is installed, and side gear 8 and driving gear 9, and side tooth are fixed in the first installation axle 7
Wheel 8 is connected with each other with fixed gear 10, while fixed gear 10 is fixed on valve rod 2, and driving gear 9 and driven gear 11 are mutual
Connection, and driven gear 11 is fixed on 12 top of the second installation axle, and the second installation axle 12 is mounted on 4 inside bottom surface of work box
On, cam 13 is fixed in the middle part of the second installation axle 12, and the avris of cam 13 is bonded with valve rod 2, the bottom end of valve rod 2 is fixed on bottom
14 inside of bearing, and the outside of base bearing 14 is fixed on 15 top of valve plate, and valve plate 15 and 1 inside bottom of gate valve ontology are mutual
Connection, while 15 avris of valve plate offers side window 16,16 inner wall of side window is bonded with 17 avris of cartridge filter, and cartridge filter 17 is mounted on
1 inside bottom of gate valve ontology, and strainer 18 is fixed in cartridge filter 17, the bottom end of valve plate 15 is fixed with bottom plate 19, and bottom plate
19 bottom end is bonded with the upper surface of contact plate 20, and contact plate 20 is fixed in gate valve ontology 1, and 20 upper surface of contact plate is solid
Surely there is locating piece 21, and 21 inside of locating piece is bonded with 19 avris of bottom plate.
Valve rod 2 constitutes rotating mechanism by connection bearing 3 and work box 4 in this example, and is symmetrically welded on the outside of the box 4 that works
2 side convex blocks 5, and side convex block 5 is to be slidably connected with track groove 6, and it is straight greater than valve rod 2 to work at the same time 4 bottom opening diameter of box
Diameter, above-mentioned structure designs so that valve rod 2 when rotated, can drive work box 4 to carry out carry out Vertical Square by connection bearing 3
For upward displacement movement without rotating, side convex block 5 and track groove 6 can guarantee the sliding stable in vertical direction of work box 4,
Work 4 bottom opening diameter of box design so that work 4 bottom surface of box do not contacted with valve rod 2, will not influence the normally-open of valve rod 2
Close the operation of valve plate 15；
Side gear 8 is to engage connection, and side gear 8 is angularly distributed with 3 about the center of valve rod 2 with fixed gear 10, on
The structure design stated is so that fixed gear 10 when following 2 synchronous rotary of valve rod, can use the stable drive of engagement connection relationship
Dynamic side gear 8 rotates；
Driving gear 9 is to engage connection, and drive and 2 dentalations are only distributed on gear 9, and is driven with driven gear 11
Gear 11 and cam 13 are welded in the second installation axle 12, while cam 13 is the coarse high speed steel wheel of avris, above-mentioned knot
Structure designs so that driving gear 9 can use engagement connection when by side gear 8 by the first installation axle 7 drive synchronous rotation
The stable driving driven gear 11 of relationship rotates, and driven gear 11 is when rotated, can be driven by the second installation axle 12 convex
Take turns 13 pairs of valve rods 2 and carry out extruding limit, and since 13 hardness of cam of the coarse high speed steel material of avris is high, be unlikely to deform and
It is contacted with valve rod 2, frictional force is larger, can be with long-term stable work；
Valve plate 15 constitutes rotating mechanism by base bearing 14 and valve rod 2, and valve plate 15 face section top width it is wider than bottom
Degree is wide, and 15 avris of valve plate is bonded with 1 bottom angled inner wall of gate valve ontology, while 15 avris of valve plate is symmetrically distributed with side window
16, above-mentioned structure design allows valve plate 15 when valve rod 2 rotates, and the displacement only carried out in vertical direction is slided, and side
The design of window 16 then guarantees to be bonded with cartridge filter 17 on the inside of side window 16, guarantees the leakproofness of device entirety；
Cartridge filter 17 is threadedly coupled with gate valve ontology 1, and the outer wall of cartridge filter 17 and the inner wall of side window 16 fit closely, and
The distance of symmetrical 16 lowermost end of side window is equal to valve plate 15 and faces the width of section lowermost end, above-mentioned structure design so that
Cartridge filter 17 can easily dismantle installation, and the design of the distance of symmetrical 16 lowermost end of side window then ensure that valve plate 15
Bottom can be bonded on the inside of gate valve ontology 1, guarantee valve plate 15 after closure, liquid will not leak through valve plate 15；
The section of facing of bottom plate 19 is inverted isosceles trapezoid, and 19 bottom of bottom plate is fitted closely with 20 top of contact plate, and
The material of contact plate 20 is Maraging steel, and said structure design makes the narrower part of bottom plate 19, and squeezing, toughness is higher
Maraging steel made of contact plate 20 when, contact plate 20 can be bent with deformation；
Contact plate 20 and gate valve ontology 1 and locating piece 21 are to be welded to connect, and locating piece 21 is symmetrical in 20 upper surface of contact plate
Distribution, and locating piece 21 is to face the high speed bloom that section is right-angled trapezium, and above-mentioned structure designs so that contact plate 20 exists
When by 19 compressional deformation of bottom plate, locating piece 21 thereon can follow 20 deformation of contact plate and slope inwardly tight with 19 avris of bottom plate
Closely connected conjunction carries out extruding clamping to bottom plate 19, and the locating piece 21 of high-speed steel stock material is unlikely to deform, can be made with long-time stable
With.
Working principle: 15 closed state of valve plate as depicted in figs. 1 and 2,15 avris of valve plate and 1 bottom end avris of gate valve ontology
Sealing is fitted closely, sealing is fitted closely on the inside of cartridge filter 17 and side window 16, valve plate 15 pushes in contact plate 20 with bottom plate 19
Between the recessed deformation in position, the inward slant of locating piece 21 carries out extruding clamping to bottom plate 19, and cam 13 in Fig. 5 squeezes outside valve rod 2
Valve rod 2 is fixedly clamped by side, the cam 13 in 3 the second installation axles 12, and device at this time may be used generally in stable sealing state
Gate valve ontology 1 is installed or removed, detachable, can will be the cartridge filter 17 being threadedly coupled with gate valve ontology 1, pass through figure
The hole that 17 avris of cartridge filter opens up in 2 carries out more easily disassembly using screwdriver, can be right after cartridge filter 17 removes
Strainer 18 is cleaned, and after the completion of cleaning, cartridge filter 17 is installed and is resetted, device is integrally connected on pipeline；
The present apparatus is after normal connection, when needing to open valve plate 15, only needs rotary valve rod 2, valve rod 2 passes through 14 band of base bearing
Dynamic valve plate 15 slides vertically upward, and valve plate 15 is detached from side window 16 and the sliding of cartridge filter 17, and bottom plate 19 no longer squeezes contact plate
20, Dish deformation, recovery horizontality, locating piece 21 do not squeeze inwardly no longer and clamp bottom plate 19 contact plate 20 still further below；
During rotation moves up, the fixed gear 10 of synchronous drive rotates valve rod 2, and by connection bearing 3 with work box 4
Sliding is moved up along the track of track groove 6 with side convex block 5, fixed gear 10 drives side gear 8 to rotate when rotated, side gear 8
Driving 9 synchronous rotary of gear is driven by the first installation axle 7, due to only 2 dentalations on driving gear 9, so driving
Gear 9 for each revolution, is only capable of the distance that driving driven gear 11 rotates 2 dentalations, and driven gear 11 just passes through second
Installation axle 12 is rotated with 13 intermittence of moving cam, and the cam 13 in Fig. 5 rotates clockwise separate valve rod 2, revolves position on such valve rod 2
Enough distances are moved, until cam 13 is in the process and enough for rotation since intermittence rotates when valve plate 15 moves up opening completely
Angle squeezes valve rod 2 again, continues rotary valve rod 2, until driving gear 9 is by driven gear 11 and the second installation axle 12 with cardon
Cam 13 in 5 rotates clockwise, and be in close contact on the outside of valve rod 2, valve rod 2 is fixedly clamped again, enables valve rod 2 that can not revolve
Indexing moves, and completes the opening operation of valve plate 15, liquid can be flowed by 1 foot passage of gate valve ontology in Fig. 1, in liquid
When by cartridge filter 17, impurities in water will be filtered the retention of the cartridge filter 17 in cylinder 17, only need to be according to institute before when periodic maintenance
It states under cartridge filter 17 is dismantled in operation and is cleared up；
When needing for valve plate 15 to be closed, valve rod 2 need to be only reversely rotated, valve rod 2 is moved down with work box 4 and valve plate 15, until valve
The bottom plate 19 of 15 bottom end of plate is pressed down against state shown in 20 depressed deformation to Fig. 7 of contact plate, and 2 locating pieces 21 slope inwardly the bottom of
Plate 19, which squeezes, to be clamped, so that 15 position of valve plate be fixed, the inner wall of the avris and side window 16 of the cartridge filter 17 in Fig. 2 is fitted closely
Sealing, and give valve plate 15 pressure when water flow enters side and is trapped the water flow of blocking, valve plate 15 can be pushed and other side
Cartridge filter 17 fit closely, achieve the effect that hydraulic pressure automatic-sealed；
And fixed gear 10 follows valve rod 2 to carry out the contrary rotation of front opening valve plate 15 therewith, and driving gear 9 is fixed
Gear 10, driven gear 11, the second installation axle 12 and cam 13 carry out the rotation with opposite direction before, and the rotation of cam 13 is multiple
Position is in close contact on the outside of valve rod 2, valve rod 2 is clamped, valve rod 2 is avoided to be influenced to loosen by the external world again to state shown in Fig. 5,
Complete the closed procedure of valve plate 15；
The structure of gate valve ontology 1 and valve rod 2 in the present apparatus is identical as existing gate valve structure, and strainer 18 is generally to adopt at present
The close net of metal material, is existing mature technology, is well known to the skilled person, be not described in detail herein.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of high efficiency extruding formula automatic-sealed gate valve, including gate valve ontology (1), valve rod (2) and locating piece (21), feature exists
In: it is equipped with valve rod (2) on the inside of the gate valve ontology (1), and valve rod (2) is connected with each other with the inside for connecting bearing (3), and
And the outside of connection bearing (3) and box (4) top that works are connected with each other, the avris for working at the same time box (4) is fixed with side convex block
(5), the side convex block (5) and track groove (6) are connected with each other, and track groove (6) is provided on the inner wall of gate valve ontology (1), institute
It states and is equipped with the first installation axle (7) at the top of the inner wall of work box (4), and be fixed with side gear (8) in the first installation axle (7) and drive
Moving gear (9), and side gear (8) and fixed gear (10) are connected with each other, while fixed gear (10) are fixed on valve rod (2)
On, the driving gear (9) and driven gear (11) are connected with each other, and driven gear (11) is fixed on the second installation axle (12) top
End, and the second installation axle (12) is mounted in work box (4) inside bottom surface, is fixed in the middle part of second installation axle (12) convex
It takes turns (13), and the avris of cam (13) is bonded with valve rod (2), the bottom end of the valve rod (2) is fixed on the inside of base bearing (14), and
It is fixed on the outside of base bearing (14) at the top of valve plate (15), and valve plate (15) and gate valve ontology (1) inside bottom are connected with each other,
Valve plate (15) avris offers side window (16) simultaneously, and side window (16) inner wall is bonded with cartridge filter (17) avris, and cartridge filter
(17) it is mounted on gate valve ontology (1) inside bottom, and is fixed with strainer (18) in cartridge filter (17), the bottom of the valve plate (15)
End is fixed with bottom plate (19), and the bottom end of bottom plate (19) is bonded with the upper surface of contact plate (20), and contact plate (20) is fixed
In gate valve ontology (1), contact plate (20) upper surface is fixed with locating piece (21), and locating piece (21) inside and bottom plate
(19) avris is bonded.
2. a kind of high efficiency extruding formula automatic-sealed gate valve according to claim 1, it is characterised in that: the valve rod (2) is logical
It crosses connection bearing (3) and work box (4) constitutes rotating mechanism, and box (4) outside that works is symmetrically welded with 2 side convex blocks (5), and
And side convex block (5) is to be slidably connected with track groove (6), works at the same time box (4) bottom opening diameter greater than valve rod (2) diameter.
3. a kind of high efficiency extruding formula automatic-sealed gate valve according to claim 1, it is characterised in that: the side gear (8)
It is to engage connection, and side gear (8) is angularly distributed with 3 about the center of valve rod (2) with fixed gear (10).
4. a kind of high efficiency extruding formula automatic-sealed gate valve according to claim 1, it is characterised in that: the driving gear
It (9) is to engage connection, and drive and 2 dentalations, and driven gear is only distributed on gear (9) with driven gear (11)
(11) it is welded on the second installation axle (12) with cam (13), while cam (13) is the coarse high speed steel wheel of avris.
5. a kind of high efficiency extruding formula automatic-sealed gate valve according to claim 1, it is characterised in that: the valve plate (15) is logical
Cross base bearing (14) and valve rod (2) and constitute rotating mechanism, and valve plate (15) face section top width it is wider than bottom width, and
And valve plate (15) avris is bonded with gate valve ontology (1) bottom angled inner wall, while valve plate (15) avris is symmetrically distributed with side window
(16).
6. a kind of high efficiency extruding formula automatic-sealed gate valve according to claim 1, it is characterised in that: the cartridge filter (17)
It is to be threadedly coupled, and the outer wall of cartridge filter (17) and the inner wall of side window (16) fit closely, and symmetrically divide with gate valve ontology (1)
The distance of side window (16) lowermost end of cloth is equal to the width that valve plate (15) face section lowermost end.
7. a kind of high efficiency extruding formula automatic-sealed gate valve according to claim 1, it is characterised in that: the bottom plate (19)
Facing section is inverted isosceles trapezoid, and bottom plate (19) bottom is fitted closely with contact plate (20) top, and contact plate
(20) material is Maraging steel.
8. a kind of high efficiency extruding formula automatic-sealed gate valve according to claim 1, it is characterised in that: the contact plate (20)
It is to be welded to connect, and locating piece (21) is symmetrical in contact plate (20) upper surface with gate valve ontology (1) and locating piece (21),
And locating piece (21) is to face the high speed bloom that section is right-angled trapezium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349860.9A CN109944978B (en) | 2019-04-28 | 2019-04-28 | Extrusion type automatic sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349860.9A CN109944978B (en) | 2019-04-28 | 2019-04-28 | Extrusion type automatic sealing gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109944978A true CN109944978A (en) | 2019-06-28 |
| CN109944978B CN109944978B (en) | 2020-06-23 |
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ID=67016495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910349860.9A Active CN109944978B (en) | 2019-04-28 | 2019-04-28 | Extrusion type automatic sealing gate valve |
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| Country | Link |
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| CN (1) | CN109944978B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207222A (en) * | 2020-02-21 | 2020-05-29 | 三明学院 | Totally-enclosed gate valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210523U (en) * | 1986-12-23 | 1988-07-06 | 王俊卿 | Cam lock valve |
| JP2005147382A (en) * | 2003-11-14 | 2005-06-09 | Kowa Industry Co Ltd | Multistage geared type manual operating machine |
| CN104870872A (en) * | 2012-12-04 | 2015-08-26 | 株式会社开滋Sct | Butterfly pressure control valve |
| CN205896226U (en) * | 2016-07-26 | 2017-01-18 | 北京华福工程有限公司 | Novel self sealss push -pull valve |
| CN206988546U (en) * | 2017-06-01 | 2018-02-09 | 泉州市晋源消防水暖有限公司 | A kind of novel signal gate valve |
-
2019
- 2019-04-28 CN CN201910349860.9A patent/CN109944978B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210523U (en) * | 1986-12-23 | 1988-07-06 | 王俊卿 | Cam lock valve |
| JP2005147382A (en) * | 2003-11-14 | 2005-06-09 | Kowa Industry Co Ltd | Multistage geared type manual operating machine |
| CN104870872A (en) * | 2012-12-04 | 2015-08-26 | 株式会社开滋Sct | Butterfly pressure control valve |
| CN205896226U (en) * | 2016-07-26 | 2017-01-18 | 北京华福工程有限公司 | Novel self sealss push -pull valve |
| CN206988546U (en) * | 2017-06-01 | 2018-02-09 | 泉州市晋源消防水暖有限公司 | A kind of novel signal gate valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207222A (en) * | 2020-02-21 | 2020-05-29 | 三明学院 | Totally-enclosed gate valve |
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| Publication number | Publication date |
|---|---|
| CN109944978B (en) | 2020-06-23 |
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