CN108953624A - Hauberk formula flap valve - Google Patents
Hauberk formula flap valve Download PDFInfo
- Publication number
- CN108953624A CN108953624A CN201810918711.5A CN201810918711A CN108953624A CN 108953624 A CN108953624 A CN 108953624A CN 201810918711 A CN201810918711 A CN 201810918711A CN 108953624 A CN108953624 A CN 108953624A
- Authority
- CN
- China
- Prior art keywords
- flap
- sealing
- bolt
- hauberk
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 97
- 230000004308 accommodation Effects 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 210000002421 cell wall Anatomy 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2042—Special features or arrangements of the sealing
- F16K1/205—Special features or arrangements of the sealing the sealing being arranged on the valve member
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to hauberk formula flap valves, the flap including valve seat and hauberk formula, and flap includes elastic seal ring, elastomeric connector strip, sealing element and multiple successively bolts arranged in parallel；All bolts are contacted and all bolt hoops are formed overall structure together by elastic seal ring by elastomeric connector strip, there is the card slot being adapted to elastic seal ring on bolt, elastic seal ring is in card slot, sealing element is equipped between two neighboring bolt, flap one end is movably connected on the lateral wall of valve seat upper end, have at the top of valve seat with the matched sealing valve port face of flap, when flap and valve base sealing contact, two neighboring bolt is in sealing contact.Flap deformability in the present invention is strong, can adjust automatically seal cooperation position, cooperation success rate is high, and sealing performance is reliable.It is particularly suitable for the sealing in pressure maintaining coring for realizing pressure maintaining cylinder lower end, flap can be adjacent to pressure maintaining drum outer wall when unlatching, save space, and have reverse self-locking characteristic when pressure maintaining stress.
Description
Technical field
The present invention relates to valve technology field more particularly to hauberk formula flap valves.
Background technique
Core drilling be Solid Mineral geological prospecting frequently with exploration means.Tubular drill bit and drilling tool bottom hole circumferentially
Cyclic annular fractured rock retains a columnar rock core in bottom hole central part, and removal of core is to study geology and mine out of hole
The case where production, therefore referred to as core drilling.
Coring tube generally includes drilling machine outer cylinder and core tube, and tubular drill bit is mounted on drilling machine outer cylinder bottom, and core tube is located at
It is enclosed in drilling machine outer cylinder, core tube lower end inner wall is equipped with and catches core device, and with the drilling of drill bit, core enters core from core tube lower end
It is firmly grasped in cylinder and by catching core device.After drilling through, core tube is lifted upwards, catches core device and core rises with core tube.
In pressure maintaining coring field, pressure maintaining cylinder upper end generally uses piston seal, and pressure maintaining cylinder lower end generallys use ball valve sealing
Or flap valve sealing.Ball-valve structure is more complicated, and volume exclusion is big, limits the diameter of core-drilling, ball valve processing technology
It is required that high, and when pressure is larger, liquid inside pressure maintaining cylinder can gap exudation between ball valve and core barrel, cannot maintain
Higher pressure；Existing flap valve is able to maintain that higher pressure although structure is simple, its flap is fixed shape, no
It can deform, cooperation success rate is low.
Summary of the invention
The present invention is intended to provide hauberk formula flap valve, flap has deformability, and cooperation success rate is high, sealing performance
Reliably.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
Hauberk formula flap valve, the flap including valve seat and hauberk formula, flap include elastic seal ring, elastic connection
Item, sealing element and multiple successively bolts arranged in parallel；Elastomeric connector strip contacts all bolts and by elastic seal ring by institute
There is bolt hoop to form overall structure together, there is the card slot being adapted to elastic seal ring on bolt, elastic seal ring is mounted in card slot
In, sealing element is equipped between two neighboring bolt, flap one end is movably connected on the lateral wall of valve seat upper end, have at the top of valve seat with
The matched sealing valve port face of flap, when flap is contacted with valve base sealing, two neighboring bolt is in sealing contact.
Wherein, when flap opens 90 °, bolt is parallel with the axis of valve seat.
Further, when flap and valve base sealing contact, flap is circular flat plate structure.
Wherein, in addition to two bolts of head and the tail, remaining bolt has wedge-shaped through slot on one side, and opposite another side has logical with wedge shape
The protrusion of slot adaptation；
One of bolt in two bolts is equipped with wedge-shaped through slot from beginning to end, another bolt is equipped with protrusion；
The protrusion of one of bolt in two neighboring bolt and the wedge-shaped through slot wedge-like engagement of another bolt, sealing
Part is set between the cell wall and protrusion of wedge-shaped through slot.
Further, when flap and sealing valve port face are in sealing contact, elastic seal ring is located in the middle part of flap, sealing element position
Above elastic seal ring, elastomeric connector strip is located above sealing element.
Further, there are limit step surface one, the protrusion of another corresponding bolt on the one of cell wall of wedge-shaped through slot
On have and the limiting stand terrace two that is adapted to of limited step one side；
When flap and valve base sealing contact, limiting stand terrace one and limiting stand terrace two-phase conflict and limiting stand terrace one
Positioned at two outside of limiting stand terrace, limiting stand terrace one and limiting stand terrace two are located at below elastic seal ring.
Further, wedge-shaped through slot is V-arrangement, U-shaped or trapezoidal.
Wherein, sealing element is mounted on the cell wall of wedge-shaped through slot.
Further, sealing element includes sealing strip for providing soft seal and for providing the metal sealing sealed firmly
Part.
Preferably, sealing element further includes graphite, and for sealing strip between graphite and metal seal, graphite is located at sealing strip
Inside.
Further, flap is movably connected on valve seat by spring leaf, and spring leaf includes shaft and flexible bullet
Piece, valve seat apical lateral wall have shaft accommodation groove compatible with shaft, and in shaft accommodation groove, flap outer surface has shaft
The elastic slice accommodation groove of elastic slice is accommodated, elastic slice is in elastic slice accommodation groove.
Compared with prior art, the invention has the following advantages:
Flap deformability in the present invention is strong, can adjust automatically seal cooperation position, cooperation success rate is high, sealing performance
Reliably.It is particularly suitable for the sealing in pressure maintaining coring for realizing pressure maintaining cylinder lower end, flap can be adjacent to outside pressure maintaining cylinder when unlatching
Wall saves space, and has reverse self-locking characteristic when pressure maintaining stress.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention when flap is opened；
Fig. 2 is structural schematic diagram of the invention when flap is closed；
3 dimensional drawing when Fig. 3 is flap compression seal；
Main view when Fig. 4 is flap compression seal；
Fig. 5 is 3 dimensional drawing of the invention when core barrel is located in valve seat；
Fig. 6 is the schematic diagram when present invention is mounted in coring tube and flap is opened；
Fig. 7 is the schematic diagram when present invention is mounted in coring tube and flap is closed；
Fig. 8 is the top view of flap in Fig. 5；
Fig. 9 is the partial enlarged view in Fig. 8 at A；
Figure 10 is the partial enlarged view in Fig. 9 at A；
Figure 11 is the 3 dimensional drawing of nature lower Disc；
In figure: 1- valve seat, 2- flap, 3- spring leaf, 4- catch core device, 5- core tube, 6- drilling machine outer cylinder, 7- sealing ring, 11-
Sealing valve port face, 12- annular groove, 21- bolt, 22- elastomeric connector strip, 23- sealing element, 24- elastic seal ring, 25- elastic slice hold
Set slot, 31- shaft, 32- elastic slice, 211- wedge shape through slot, the protrusion 212-, 213- limiting stand terrace one, 214- limiting stand terrace two,
231- sealing strip, 232- metal seal, 233- graphite, 234- auxiliary sealing member.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
As Figure 1-10 shows, hauberk formula flap valve disclosed by the invention, including valve seat 1 and the flap of hauberk formula 2, valve
Valve 2 includes elastic seal ring 24, elastomeric connector strip 22, sealing element 23 and multiple successively bolts 21 arranged in parallel.Bolt 21 to
Rare 3, the quantity of bolt 21 is determined according to the size of sealing valve port face.Elastomeric connector strip 22 by all bolts 21 contact and by
All bolts 21 hoop is formed overall structure by elastic seal ring 24 together, since multiple bolts 21 of parallel arranged are connected by elasticity
Narrow bars 22 are connected, and by 24 lock ring of elastic seal ring, can make bolt 21 and elastic seal ring 24 when flap 2 or bolt 21 are by external force
Elastic deformation occurs, then relative displacement and rotation can occur for two neighboring bolt 21, thus flap 2 can occur when by external force
Deformation.
There is the card slot being adapted to elastic seal ring 24 on bolt 21, elastic seal ring 24 is in card slot, two neighboring lock
Sealing element 23 is equipped between item 21,2 one end of flap is movably connected on the lateral wall of 1 upper end of valve seat, has at the top of valve seat 1 and flap 2
Matched sealing valve port face 11, sealing valve port face 11 are the conical surface.When flap 2 and valve seat 1 are in sealing contact, two neighboring bolt 21
It is in sealing contact, to block medium.
As shown in Figure 8,9, 10, in addition to two bolts 21 of head and the tail, remaining bolt 21 has a wedge-shaped through slot 211 on one side, relatively
Another side have the protrusion 212 being adapted to wedge-shaped through slot 211.One of bolt 21 in two bolts 21 is equipped with wedge from beginning to end
Shape through slot 211, another bolt 21 are equipped with protrusion 212；The protrusion 212 of one of bolt 21 in two neighboring bolt 21
Sink into the wedge-shaped through slot 211 of another bolt 21.
Wedge-shaped through slot 211 is V-arrangement or trapezoidal etc., and sealing element 23 is mounted on the cell wall of wedge-shaped through slot 211.Sealing element 23 wraps
Include the sealing strip 231 for providing soft seal, for providing the metal seal 232 sealed firmly and two auxiliary sealing members
234.Sealing strip 231 is installed between two auxiliary sealing members 234, and auxiliary sealing member 234 carries out position to sealing strip 231 and fixes,
Sealing strip 231 is protected simultaneously.
Sealing element 23 further includes graphite 233, and sealing strip 231 is between graphite 233 and metal seal 232, graphite 233
Positioned at 231 inside of sealing strip, graphite material can reduce the resistance to sliding between bolt 21.Since the cell wall of wedge-shaped through slot 211 has
Certain gradient, as shown in Figure 8,9, 10, when closure, the bolt 21 of back contacts 233 part of graphite of front bolt 21 first,
Graphite reduces friction, is conducive to closing motion；Then play sealing function first is sealing strip 231, and softer sealing strip 231 is first
First meet initial sealing condition, sealing strip 231 is strip, and cross section is circle, and length connects with two neighboring bolt 21
It is consistent to touch length.When increasing with pressure, the metal seal 233 in outside also realizes sealing.
When flap 2 and sealing valve port face 11 are in sealing contact, elastic seal ring 24 is located in the middle part of flap 2, and sealing element 23
Above elastic seal ring 24, elastomeric connector strip 22 is located at 23 top of sealing element.Due to elastomeric connector strip 22 and elastic packing
The pressure of circle 24, under natural conditions, flap 2 has the tendency that becoming slab construction, but due to the barrier effect of sealing element 23, makes
Flap 2 is the hardened structure of micro-arc in its natural state, as shown in figure 11.But when flap 2 is pressurized and valve seat 1 is in sealing contact, such as
Shown in Fig. 2,3,4, two neighboring 21 squeeze sealing member 23 of bolt is realized in sealing contact, and flap 2 is deformed into circular flat plate structure.
As shown in Figure 8,9, sealing element 23 is mounted on one of cell wall of wedge-shaped through slot 211, and wedge-shaped through slot 211 is another
There is limit step surface 1 on a cell wall, has on the protrusion 212 of another corresponding bolt 21 suitable with limited step one side 213
The limiting stand terrace 2 214 matched.When flap 2 and valve seat 1 are in sealing contact, limiting stand terrace 1 and limiting stand terrace 2 214
Positioned at the lower section of elastic seal ring 24, limiting stand terrace 1 and limiting stand terrace 2 214 is inconsistent and limiting stand terrace 1
Positioned at 2 214 outside of limiting stand terrace, protrusion 212 is exited from wedge-shaped through slot 211 when preventing flap 2 to be pressurized, and is protecting it
It being capable of reverse self-locking when pressing stress.
As shown in Fig. 2,5, flap 2 is movably connected on valve seat 1 by spring leaf 3, and spring leaf 3 includes shaft 31 and has
The elastic slice 32 of elasticity, 1 apical lateral wall of valve seat have shaft accommodation groove compatible with shaft 31, and shaft 31 is mounted in shaft accommodation groove
In, there is the elastic slice accommodation groove 25 for accommodating elastic slice 32 in 2 outer surface of flap, and elastic slice 32 is in elastic slice accommodation groove 25.Elastic slice 32 is song
Line style steel disc, shaped form steel disc are stuck at elastic slice accommodation groove 25, and shaped form steel disc can stretch under external force, and curved surface can
To become plane and be bonded completely with the elastic slice accommodation groove 25 of 2 outer surface of flap.
In another embodiment, flap 2 is hinged by pin shaft and torque spring and 1 upper end lateral wall of valve seat.
As shown in Fig. 5,6,7, when applying the present invention in core coring equipment, valve seat 1 is coaxially mounted to outside drilling machine
On 6 inner walls of cylinder, 1 outer wall of valve seat has the annular groove 12 for installing sealing ring, and sealing ring 7 is housed in annular groove 12 and realizes valve seat 1
Sealing cooperation between drilling machine outer cylinder 6.The outer diameter of core barrel 5 is adapted to 1 internal diameter of valve seat.As shown in Figure 5,6, when core barrel 5
When in valve seat 1, due to the active force of core barrel 5, flap 2 is made to open 90 degree, due to pair of core barrel 5 and drilling machine outer cylinder 6
Face active force is softened two neighboring bolt 21, and deformation occurs is finally hidden between core barrel 5 and drilling machine outer cylinder 6 for flap 2,
And the inner surface of flap 2 is bonded completely with the lateral wall of core barrel 5, is saved space, can be eliminated the limitation to core-drilling diameter.
As shown in Fig. 5,8, at this point, bolt 21 is parallel with the axis of valve seat 1.
When valve is opened, water environment in situ can be invaded in core tube 5, and 5 lower end inner wall of core tube is equipped with and catches core device 4, rock
5 top of core cylinder is equipped with piston, and 6 lower end of drilling machine outer cylinder connects drill bit, and with the drilling of drill bit, core enters from 5 lower end of core tube
It is firmly grasped in core tube 5 and by catching core device 4.After drilling through, core tube 5 is lifted upwards, catches core device 4 and core with core tube 5 one
It rises and rises.As shown in fig. 7, when flap 2 is crossed in bottom, being clipped in drilling machine outer cylinder when core barrel 5 is lifted up certain altitude
Elastic slice 32 between 6 and flap 2 discharges elastic force, and flap 2 inverts under 32 elastic force of elastic slice and self gravitation effect, real with valve seat 1
Now sealing cooperation, to realize the sealing of 5 lower end of core tube, prevents fluid loss in core tube 5；Flap 2 is in internal liquid pressure
What is contacted under power with valve seat 1 is increasingly closer, and the bigger sealing effect of internal pressure is better.
Flap deformability in the present invention is strong, can adjust automatically seal cooperation position, sealing performance is reliable.It is especially suitable
It can be adjacent to pressure maintaining drum outer wall when the sealing in pressure maintaining coring for realizing pressure maintaining cylinder lower end, unlatching, save space, and pressure maintaining
There is reverse self-locking characteristic when stress.
Certainly, the present invention can also have other numerous embodiments, without deviating from the spirit and substance of the present invention,
Those skilled in the art can make various corresponding changes and modifications, but these corresponding changes and change according to the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (10)
1. hauberk formula flap valve, it is characterised in that: the flap (2) including valve seat (1) and hauberk formula, flap (2) includes bullet
Property sealing ring (24), elastomeric connector strip (22), sealing element (23) and multiple successively bolts (21) arranged in parallel；Elastomeric connector strip
(22) all bolts (21) are contacted and all bolts (21) hoop is formed into overall structure together by elastic seal ring (24), locked
There is the card slot being adapted to elastic seal ring (24) on item (21), elastic seal ring (24) is in card slot, two neighboring bolt
(21) sealing element (23) are equipped between, flap (2) one end is movably connected on the lateral wall of valve seat (1) upper end, is had at the top of valve seat (1)
With flap (2) matched sealing valve port face (11), when flap (2) and valve seat (1) are in sealing contact, two neighboring bolt (21) is close
Sealing-in touching.
2. hauberk formula flap valve according to claim 1, it is characterised in that: when flap (2) open 90 °, bolt
(21) parallel with the axis of valve seat (1).
3. hauberk formula flap valve according to claim 1 or 2, it is characterised in that: when flap (2) and valve seat (1) seal
When contact, flap (2) is circular flat plate structure.
4. hauberk formula flap valve according to claim 1, it is characterised in that: in addition to two bolts (21) of head and the tail, remaining
Bolt (21) has wedge-shaped through slot (211) on one side, and opposite another side has the protrusion (212) being adapted to wedge-shaped through slot (211)；
One of bolt (21) in two bolts (21) is equipped with wedge-shaped through slot (211) from beginning to end, on another bolt (21)
Equipped with protrusion (212)；
The protrusion (212) of one of bolt (21) in two neighboring bolt (21) and the wedge-shaped through slot of another bolt (21)
(211) wedge-like engagement, sealing element (23) are set between the cell wall and protrusion (212) of wedge-shaped through slot (211).
5. hauberk formula flap valve according to claim 4, it is characterised in that: when flap (2) and sealing valve port face (11)
When in sealing contact, elastic seal ring (24) is located in the middle part of flap (2), and sealing element (23) is located above elastic seal ring (24), bullet
Property connection strap (22) be located above sealing element (23).
6. hauberk formula flap valve according to claim 5, it is characterised in that: the one of cell wall of wedge-shaped through slot (211)
On have limit step surface one (213), have and limiting stand terrace one (213) on the protrusion (212) of another corresponding bolt (21)
The limiting stand terrace two (214) of adaptation；
When flap (2) and valve seat (1) are in sealing contact, limiting stand terrace one (213) and limiting stand terrace two (214) are located at elasticity
Below sealing ring (24), limiting stand terrace one (213) and limiting stand terrace two (214) is inconsistent and limiting stand terrace one (213)
On the outside of limiting stand terrace two (214).
7. according to hauberk formula flap valve described in claim 4,5 or 6, it is characterised in that: sealing element (23) is mounted on wedge shape
On the cell wall of through slot (211).
8. according to claim 1, hauberk formula flap valve described in 2,4,5 or 6, it is characterised in that: sealing element (23) includes using
In the sealing strip (231) for providing soft seal and for providing the metal seal sealed firmly (232).
9. hauberk formula flap valve according to claim 8, it is characterised in that: sealing element (23) further includes graphite (233),
Sealing strip (231) is located between graphite (233) and metal seal (232), and graphite (233) is located on the inside of sealing strip (231).
10. hauberk formula flap valve according to claim 1 or 2, it is characterised in that: flap (2) is living by spring leaf (3)
Dynamic to be connected on valve seat (1), spring leaf (3) includes shaft (31) and flexible elastic slice (32), valve seat (1) apical lateral wall
Have and be mounted in shaft accommodation groove with shaft (31) compatible shaft accommodation groove, shaft (31), there is receiving bullet in flap (2) outer surface
The elastic slice accommodation groove (25) of piece (32), elastic slice (32) is in elastic slice accommodation groove (25).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918711.5A CN108953624B (en) | 2018-08-13 | 2018-08-13 | Lock nail type flap valve |
| PCT/CN2018/108973 WO2020034352A1 (en) | 2018-08-13 | 2018-09-30 | Chain armor type flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918711.5A CN108953624B (en) | 2018-08-13 | 2018-08-13 | Lock nail type flap valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953624A true CN108953624A (en) | 2018-12-07 |
| CN108953624B CN108953624B (en) | 2023-08-15 |
Family
ID=64469007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810918711.5A Active CN108953624B (en) | 2018-08-13 | 2018-08-13 | Lock nail type flap valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108953624B (en) |
| WO (1) | WO2020034352A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945545A (en) * | 2021-03-31 | 2021-06-11 | 四川大学 | Flap valve magnetic closure experimental method |
| CN113202435A (en) * | 2021-03-31 | 2021-08-03 | 深圳大学 | Pressure maintaining control device based on magnetic field effect and fidelity controller |
| CN113654826A (en) * | 2021-07-14 | 2021-11-16 | 深圳大学 | Pressure-maintaining coring sealing structure with flexible part |
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| CN113202435B (en) * | 2021-03-31 | 2022-08-23 | 深圳大学 | Pressure maintaining control device based on magnetic field effect and fidelity controller |
| CN112945545B (en) * | 2021-03-31 | 2023-12-29 | 四川大学 | Magnetic closure experimental method for flap valve |
| CN113654826A (en) * | 2021-07-14 | 2021-11-16 | 深圳大学 | Pressure-maintaining coring sealing structure with flexible part |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020034352A1 (en) | 2020-02-20 |
| CN108953624B (en) | 2023-08-15 |
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