CN110360351A - A kind of non-return valve - Google Patents
A kind of non-return valve Download PDFInfo
- Publication number
- CN110360351A CN110360351A CN201910680225.9A CN201910680225A CN110360351A CN 110360351 A CN110360351 A CN 110360351A CN 201910680225 A CN201910680225 A CN 201910680225A CN 110360351 A CN110360351 A CN 110360351A
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- valve body
- cover board
- positioning
- valve
- cover
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to a kind of non-return valves, including valve body, valve chamber is provided in valve body, the feed pathway being connected with valve chamber is provided on front side of valve body, the liquid outlet channel being connected with valve chamber is provided on rear side of valve body, it is provided with mounting bracket in the valve chamber above feed pathway inner channel mouth, rocking bar is hinged with by pin shaft in mounting bracket, the valve body mechanism to open or close feed pathway inner channel mouth is provided on rocking bar；It is formed with the locating slot to prevent valve body mechanism to be excessively rotated up in valve chamber, calutron is installed in locating slot, iron plate is installed in valve body mechanism, calutron includes an electromagnet；Pump cover is installed, pump cover is rotationally connected on valve body on valve body；By the way that calutron is arranged；When water pump stops working, calutron loses magnetic force, at the feed pathway that valve body mechanism falls to valve chamber under self gravity and the effect of buffer stopper elastic force, feed pathway and liquid outlet channel is isolated, formation is fully sealed.
Description
Technical field
The invention belongs to drainage equipment technical fields, and in particular to a kind of non-return valve.
Background technique
Non-return valve (also known as check-valves) refers to be flowed and automatic open and close flap by medium itself, for preventing medium from falling
The valve of stream, also known as non-return valve, check valve, reflux valve and counterbalance valve.Belong to a kind of automatic valve, main function is to prevent
Medium flows backwards, prevents pump and drive motor reversion and vessel media from releasing；It can also be used to rise to pressure therein
On the pipeline for providing supply to the auxiliary system for being more than system pressure.
Non-return valve is a kind of common valve, is mainly installed on the outlet conduit of pump apparatus, for prevent water or
Oil is flow backwards.The structure of non-return valve used at present are as follows: include: valve body, valve chamber is provided in valve body, set on front side of valve body
It is equipped with the feed pathway being connected with valve chamber, the liquid outlet channel being connected with valve chamber is provided on rear side of valve body, it is logical in feed liquor
It is provided with mounting bracket in valve chamber above road inner channel mouth, rocking bar is hinged with by pin shaft in mounting bracket, in rocking bar
On be provided with flap to open or close feed pathway inner channel mouth.In use, by front side of the valve body of non-return valve into
Liquid channel is connected with pump, the liquid outlet channel on rear side of the valve body of non-return valve is connected with outlet conduit, and generally by flap direction
The one side of pump is known as front, and the one side of valve flap surface towards outlet conduit is known as the back side.The working principle of above-mentioned non-return valve is: when
When operating pressure disappears or reduces before valve, for operating pressure acting in opposition on flap, front and back pressure difference pushes flap movement to close after valve
Feed pathway inner channel mouth is closed, to prevent from flowing backwards.Non-return valve used at present has the disadvantage in that flap closing motion
Time is short, big to the impact force of valve body, causes flap easy to damage, meanwhile, flap opens the impact force for relying on water, if the pressure of water
Power is unstable, is easy to damage valve for a long time, so as to shorten the service life of non-return valve.
The pump cover of non-return valve is in water pump long time continuous working, when the accumulating amount of impurity reaches a certain level, will lead to water
The parts such as the blade of pump operation has some setbacks, function reduce, also will affect the structure of water pump and non-return valve, increase machine abrasion,
Loss；And water pump usually generally ferrous material is made, pumping interior water flow mobility status is difficult to see that, therefore, when non-return valve occurs
When failure, the inner case of non-return valve can just be known and be likely to occur the part of failure by needing to dismantle non-return valve, judge failure
Trouble, maintenance is cumbersome, influences the operation of non-return valve and water pump.
In view of the above technical problems, it therefore needs to improve.
Summary of the invention
The present invention is to overcome above-mentioned defect in the prior art, and it is simple to provide a kind of structure, convenient and practical, uses the longevity
Life length, energy buffering collision of closed, improves the non-return valve of sealing performance.
In order to reach the goals above, the technical scheme adopted by the invention is that: a kind of non-return valve, including valve body, in valve body
In be provided with valve chamber, the feed pathway being connected with valve chamber is provided on front side of valve body, is provided on rear side of valve body and valve
The liquid outlet channel that chamber is connected is provided with mounting bracket in the valve chamber above feed pathway inner channel mouth, in mounting bracket
It is upper that rocking bar is hinged with by pin shaft, the valve body machine to open or close feed pathway inner channel mouth is provided on rocking bar
Structure；It is formed with the locating slot to prevent valve body mechanism to be excessively rotated up in valve chamber, calutron is installed in locating slot,
Corresponding, iron plate corresponding with calutron is installed, the calutron includes an electromagnetism in valve body mechanism
Iron；Pump cover is installed, pump cover is rotationally connected on valve body on the valve body.
As a preferred solution of the present invention, the pump cover includes positioning plate, cover board, hinge and cover board retainer；It is described
Hinge one end rotates one unlocking handle of axis connection by closing piece, and the other end is actively socketed on positioning plate by positioning pin；It is described
It is installed with connecting cylinder compatible with positioning plate on valve body, is equipped with connecting cover plate, connecting cover plate and connecting cylinder at the top of connecting cylinder
Junction is additionally provided with sealing ring；The outer ring side of the connecting cover plate is being equipped with several convex blocks, connection cover with connecting cylinder junction
Plate inner ring side is equipped with and the matched cover board inner groovy of cover board retainer；The connecting cylinder is equipped with connection close to connecting cover plate junction
Cylinder groove, is formed with connecting cylinder convex block with positioning plate junction；The convex block and connecting cylinder groove carve the positioning of merga pass cover board
Finger setting connection.
As a preferred solution of the present invention, the positioning plate inner ring is equipped with several locating convex blocks, the convex
Positioning limit nail is provided on the right side of block；The positioning limit clenches patch locating convex block；It is formed on the outside of the cover board retainer several
The cover board convex block of a corresponding locating convex block quantity；The cover board convex block and cover board inner groovy carve the positioning finger setting of merga pass cover board
Connection；The locating convex block and connecting cylinder convex block are carved merga pass positioning limit nail and are positioned.
As a preferred solution of the present invention, when the connecting cover plate docks and rotates to terminal with cover board retainer, lid
Plate positioning pin is clamped the left part of cover board inner groovy, corresponding, the right part of cover board positioning pin clamping bump；Cover board is fixed
Position pin blocks firm connecting cover plate for limiting with cover board positioning pin, and separates connecting cover plate with connecting cylinder；So that pump cover with
Valve body separates.
As a preferred solution of the present invention, further include retaining mechanism for locking pump cover and valve body；The locking
Mechanism is fixed on the upper surface of positioning plate, and is symmetrical arranged with positioning pin.
As a preferred solution of the present invention, closing piece rotary shaft lower end is equipped with positioning plate closing piece；The positioning plate
Closing piece one end is connect with the closing piece banking pin that hinge lower end is arranged in, and the other end is connected in retaining mechanism.
As a preferred solution of the present invention, the valve body mechanism tilts are laid at the feed pathway of valve body；Valve body
Mechanism and feed pathway tilt angle are 5 °~25 °.
As a preferred solution of the present invention, the two sides of the valve body mechanism are installed with buffer stopper, two buffer stopper bottoms
The distance between it is consistent with the internal diameter of feed pathway.
As a preferred solution of the present invention, the valve body mechanism includes flap；Mounting hole, flap are provided on rocking bar
On be provided with the movable guide post across mounting hole, guide post is connected with and flap can be locked after activity passes through mounting hole upwards
Locking nut on rocking bar；Iron plate is installed on locking nut.
As a preferred solution of the present invention, two side bottom of flap is formed with guide groove, and buffer stopper, which is connected in, leads
Into slot.
The beneficial effects of the present invention are:
1. passing through setting calutron；When water pump is started to work, calutron restores the iron on magnetic force, with valve body mechanism
Piece is attracting, and valve body mechanism is positioned in locating slot under magnet suction and water impact effect；When water pump stops working, electricity
Magnetic device loses magnetic force, will at the feed pathway that valve body mechanism falls to valve chamber under self gravity and the effect of buffer stopper elastic force
Feed pathway is isolated with liquid outlet channel, and formation is fully sealed；
2. making flap when closing feed pathway, so as to suitably extend the closing of flap by setting buffer stopper
Actuation time mitigates flap to the mechanical impact of valve body, so that effective protection flap, extends the service life of flap, into
And extend the service life of non-return valve.
3. the present invention is simple and reasonable due to using the above structure, having, pump cover is designed as renovating, easy to operate；Pump
Lid is designed as the door easy to dismantle without using tool, convenient for safeguarding.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is pump cover of the embodiment of the present invention and joint structure connecting valve schematic diagram；
Fig. 3 is A of the invention to enlarged drawing；
Fig. 4 is the positioning plate structure schematic diagram of the embodiment of the present invention；
Fig. 5 is the valve body structure schematic diagram of the embodiment of the present invention；
Fig. 6 is the connecting cover plate structural schematic diagram of the embodiment of the present invention；
Fig. 7 is the connecting cover plate structural schematic diagram with positioning pin of the embodiment of the present invention；
Fig. 8 be pump cover of the present invention in conjunction with valve body after sealing schematic diagram；
Fig. 9 is locking mechanism structure schematic diagram of the present invention；
Figure 10 is ring structure schematic diagram of the embodiment of the present invention；
Figure 11 is connection ring structure schematic diagram of the embodiment of the present invention.
Appended drawing reference in figure: pump cover 1, unlocking handle 3, hinge 4, cover board 5, positioning plate 6, locating convex block 6-1, positioning limit
Follow closely 6-2, closing piece rotary shaft 7, positioning pin 8, retaining mechanism 9, upper cover 9-1, locking bed 9-2, left link block 9-3, right link block 9-
4, mounting hole 9-5, left connecting rod 9-6, right connecting rod 9-7, limit film 9-8, O-ring seal 9-9, gasket 9-10, spring 9-11,
Tapered end 9-12 docks tapered end 9-13, positioning plate closing piece 10, closing piece banking pin 10-1, cover board retainer 11, cover board convex block 11-1, lid
Plate positioning pin 11-2, connection sealing ring 12, connecting cover plate 14, cover board inner groovy 14-1, cover board positioning pin 14-2, convex block 14-3,
Rotating cylinder 15, connecting cylinder 16, connecting cylinder convex block 16-1, connecting cylinder groove 16-2, rotating handle 17, sealing ring 18；Valve body 100, valve
Chamber 102, feed pathway 103, liquid outlet channel 104, mounting bracket 105, pin shaft 106, rocking bar 107, valve body mechanism 108, buffer stopper
109, locating slot 113, calutron 120, iron plate 121, electromagnet 122, flap 80, guide post 81, locking nut 82, guide groove
83, interconnecting piece 90, buffer part 91.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention.
Embodiment: as shown in Figure 1-3, a kind of non-return valve, including valve body 100, valve chamber 102 is provided in valve body 100,
The front side of valve body 100 is provided with the feed pathway 103 being connected with valve chamber 102, is provided with and valve chamber in the rear side of valve body 100
102 liquid outlet channels 104 being connected are provided with mounting bracket 105 in the valve chamber above 103 inner channel mouth of feed pathway,
Rocking bar 107 is hinged with by pin shaft 106 in mounting bracket 105, is provided on rocking bar 107 logical to open or close feed liquor
The valve body mechanism 108 of 103 inner channel mouth of road；Pump cover 1 is installed, pump cover 1 is rotationally connected on valve body 100 on valve body 100；This
Invention is simple and reasonable due to using the above structure, having, and pump cover is designed as renovating, easy to operate；Pump cover is designed as not
Door easy to dismantle in the case where tool is used, it is convenient for safeguarding.
The locating slot 113 to prevent valve body mechanism 108 to be excessively rotated up, setting positioning are formed in valve chamber 102
Slot 113 can preferably protect valve body mechanism 108 in this way, extend the service life of valve body mechanism 108；Installation in locating slot 13
There is calutron 20, it is corresponding, iron plate 21 corresponding with calutron 20, the electricity are installed in valve body mechanism 8
Magnetic device 20 includes an electromagnet 22；By the way that calutron is arranged；When water pump is started to work, calutron restores magnetic force,
Attracting with the iron plate in valve body mechanism, valve body mechanism is positioned in locating slot under magnet suction and water impact effect；Work as water
When pump stops working, calutron loses magnetic force, and valve body mechanism falls to valve chamber under self gravity and the effect of buffer stopper elastic force
Feed pathway at, feed pathway and liquid outlet channel are isolated, formation is fully sealed.
The inclination of valve body mechanism 8 is laid at the feed pathway 103 of valve body 1；Valve body mechanism 108 and feed pathway 103 tilt
Angle is 5 °~25 °；In the present invention, valve body mechanism 108 and 103 tilt angle of feed pathway are 10 °, and valve body mechanism 108 is certainly
It is fallen at the feed pathway of valve chamber under body gravity and the effect of 109 elastic force of buffer stopper, feed pathway and liquid outlet channel is isolated,
Formation is fully sealed；The two sides of valve body mechanism 108 are installed with buffer stopper 109, the distance between two buffer stoppers, 109 bottom and feed liquor
The internal diameter in channel 103 is consistent；80 liang of side bottoms of flap are formed with guide groove 83, and buffer stopper 109 is connected in guide groove 83；It is slow
Rushing block 109 includes interconnecting piece 90 and buffer part 91, and interconnecting piece 90 is fixedly connected with buffer part 91, is integrally formed；Improve entirety
The overall structural strength and fastness of buffer stopper 9 ensure that use is safe, while interconnecting piece 90 is connected in guide groove 83, is kept away
Exempt from buffer stopper 9 to fall off in use.The trapezoidal structure of buffer part 91, vertical runs are in 90 middle part of interconnecting piece；Buffer part 91
2 times with a thickness of 90 thickness of interconnecting piece, the length of buffer part 91 is the 1/2 of 90 length of interconnecting piece；By the way that buffer stopper is arranged, make
Flap is when closing feed pathway, so as to suitably extend the closing motion time of flap, mitigates flap to the machine of valve body
Tool is hit, so that effective protection flap, extends the service life of flap, and then extend the service life of non-return valve.
Valve body mechanism 108 includes flap 80；It is provided with mounting hole on rocking bar 107, movable pass through is provided on flap 80
The guide post 81 of mounting hole, guide post are connected with and flap 80 can be locked on rocking bar 107 after activity passes through mounting hole upwards
Locking nut 82；Iron plate 21 is installed on locking nut 82.
As shown in Figure 4-8, a kind of pump cover 1 of non-return valve includes positioning plate 6, cover board 5, hinge 4 and cover board retainer 11；It is described
4 one end of hinge connects a unlocking handle 3 by closing piece rotary shaft 7, and the other end is actively socketed on positioning plate 6 by positioning pin 8；
It is installed with connecting cylinder 16 compatible with positioning plate 6 on the valve body 100, connecting cover plate 14 is equipped at the top of connecting cylinder 16, even
Connects cover plate 14 and 16 junction of connecting cylinder are additionally provided with sealing ring 18；Corresponding, it is arranged between connecting cover plate 14 and cover board 5
Have connection sealing ring 12 corresponding with sealing ring 18, when pump cover 1 is connect with valve body 100, sealing ring 18 with connect sealing ring 12
It is inconsistent, form sealing structure.
The outer ring side of connecting cover plate 14 is being equipped with several convex block 14-3,14 inner ring of connecting cover plate with 16 junction of connecting cylinder
Side is equipped with and the matched cover board inner groovy 14-1 of cover board retainer 11；The connecting cylinder 16 is equipped with close to 14 junction of connecting cover plate
Connecting cylinder groove 16-2 is formed with connecting cylinder convex block 16-1 with 6 junction of positioning plate；The convex block 14-3 and connecting cylinder groove
16-2 carves merga pass cover board positioning pin 14-2 and is located by connecting；7 lower end of closing piece rotary shaft is equipped with positioning plate closing piece 10；The positioning
10 one end of plate closing piece is connect with the closing piece banking pin 10-1 that 4 lower end of hinge is arranged in, and the other end is connected in retaining mechanism 9.With
Retaining mechanism 9 is flexibly connected；Retaining mechanism 9 is fixed on the upper surface of positioning plate 6 and is symmetrical arranged with closing piece rotary shaft 7；This hair
There is bright water pump cover good sealing to compress reliability, convenient for disassembly and assembly, at the valve deck especially suitable for high-pressure hydraulic pump pump.
6 inner ring of positioning plate is equipped with several locating convex blocks 6-1, and the quantity of locating convex block 6-1 is 5, the positioning plate 6 with
Locating convex block 6-1 is integrally formed；Positioning limit nail 6-2 is provided on the right side of locating convex block 6-1；The positioning limit nail 6-2 is close to
Locating convex block 6-1；Several cover board convex block 11-1 for corresponding to locating convex block 6-1 quantity are formed on the outside of cover board retainer 11；Cover board
Convex block 11-1 and cover board inner groovy 14-1 carves merga pass cover board positioning pin 11-2 and is located by connecting；The locating convex block 6-1 and company
Connect cylinder convex block 16-1 carves the nail 6-2 positioning of merga pass positioning limit；The present invention can easily be opened using unlocking handle or
Pump cover is closed, tightening torque can be accurately controlled, and saves specific purpose tool.
When connecting cover plate 14 docks and rotates to terminal with cover board retainer 11, cover board positioning pin 11-2 is clamped cover board inner groovy
The left part of 14-1, corresponding, the right part of cover board positioning pin 14-2 clamping bump 14-3；Cover board positioning pin 14-2 with
Cover board positioning pin 11-2 blocks firm connecting cover plate 14 for limiting, and separates connecting cover plate 14 with connecting cylinder 16；So that pump
Lid 1 is separated with valve body 100.
Water pump cover of the invention further includes the retaining mechanism 9 for locking pump cover 1 and valve body 100；The retaining mechanism 9
It is fixed on the upper surface of positioning plate 6, and is symmetrical arranged with positioning pin 8.
As shown in figure 9, retaining mechanism 9 includes upper cover 9-1, in the locking bed 9-2 being socketed in upper cover 9-1, locking bed 9-2
Left link block 9-3 and right link block 9-4 are installed；Left link block 9-3 and the bottom right link block 9-4 are separately installed with symmetrical
Left connecting rod 9-6 and right connecting rod 9-7；Two groups of left connecting rod 9-6 and two groups of right connecting rod 9-7 are symmetrical set, the lock
Direct acting hole is provided at the position that tight seat 9-2 is matched with tapered end 9-12；The tapered end 9-12 is arranged in the direct acting hole；Institute
It states and is provided with mounting hole 9-5 at the position that locking bed 9-2 is matched with docking tapered end 9-13；The lower end of the left connecting rod 9-6
It is matched across spring 9-11 with the connection tapered end 9-13, the connection tapered end 9-13 is arranged in the mounting hole 9-5；It is right
Left connecting rod 9-6 below link block 9-4 and O-ring seal 9-9 and gasket 9-10 are successively additionally provided between tapered end 9-12；It is described
Left connecting rod 9-6 passes through O-ring seal 9-9 and gasket 9-10 and docks with spring 9-11；Left connecting rod below left link block 9-3
O-ring seal 9-9 and washer 9-10 are successively additionally provided between 9-6 and tapered end 9-13；The left connecting rod 9-6 passes through O-shaped sealing
Circle 9-9 and washer 9-10 is docked with spring 9-11；The bottom of locking bed 9-2 is additionally provided with limit film 9-8；The right connecting rod 9-7
Lower end passes through locking bed 9-2 and connect with limit film 9-8.
After pump cover 1 and valve body 100 dock, the connecting cylinder convex block 16-1 that positioning plate 6 is equipped with jacks up tapered end 9-12,
Under the action of spring 9-11, right connecting rod 9-7 is jacked up by the linkage of right link block 9-4, at this time rotate unlocking handle 3 to
At 90 °, i.e., openable pump cover 1.
After connecting cover plate 14 and cover board retainer 11 are to connecting, by rotate unlocking handle 3, i.e., openable cover board 5, this
When, since positioning plate closing piece 10 is removed, right connecting rod 9-7 docks tapered end 9-13 spring 9-11's without position restriction
Under effect, since own wt drops to certain position, at this point, right connecting rod 9-7 locks valve body 100, do not closed in cover board 5
It closes and unlocking handle 3 is not when rotating to the state of locking, valve body 100 is locked.
As shown in figs. 10-11, sealing ring 18 includes the first sharp portion 18-1, the first positioning region 18-3 and positions positioned at first
The first step portion 18-2 of the portion two sides 18-3；First sharp portion 18-1, the first positioning region 18-3 and first step portion 18-2 are fixed
Connection is integrally formed；The connection sealing ring 12 includes the second sharp portion 12-1, the second positioning region 12-3 and positions positioned at second
The second step portion 12-2 of the portion two sides 12-3；Second sharp portion 12-1, the second positioning region 12-3 and second step portion 12-2 are fixed
Connection is integrally formed；Between the first positioning region 18-3 insertion positioning plate 6 and connecting cylinder 16, it is located at the first positioning region 18-3
The first step portion 18-2 of two sides fits in the outside of positioning plate 6 Yu connecting cylinder 16 respectively, and the first sharp portion 18-1 stretches out in fixed
The connection lateral wall of position plate 6 and connecting cylinder 16；Between the second positioning region 12-3 insertion connecting cover plate 14 and cover board 5, it is located at
The second step portion 12-2 of the second positioning region two sides 12-3 is fitted in respectively between connecting cover plate 14 and cover board 5, the second spine
Portion 12-1 stretches out in the connection lateral wall of connecting cover plate 14 and cover board 5；When pump cover 1 is connect with valve body 100, the first sharp portion 18-1
Extruding is bonded to each other with the second sharp portion 12-1.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention；Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Although appended drawing reference in figure is used more herein: pump cover 1, unlocking handle 3, hinge 4, cover board 5, positioning plate 6,
Locating convex block 6-1, positioning limit follow closely 6-2, and closing piece rotary shaft 7, positioning pin 8, retaining mechanism 9, upper cover 9-1, locking bed 9-2 are left
Link block 9-3, right link block 9-4, mounting hole 9-5, left connecting rod 9-6, right connecting rod 9-7, limit film 9-8, O-ring seal 9-
9, gasket 9-10, spring 9-11, tapered end 9-12 dock tapered end 9-13, positioning plate closing piece 10, closing piece banking pin 10-1, cover board lock
11, cover board convex block 11-1, cover board positioning pin 11-2 are enclosed, sealing ring 12, connecting cover plate 14, cover board inner groovy 14-1, cover board are connected
Positioning pin 14-2, convex block 14-3, rotating cylinder 15, connecting cylinder 16, connecting cylinder convex block 16-1, connecting cylinder groove 16-2, rotating handle 17,
Sealing ring 18；Valve body 100, valve chamber 102, feed pathway 103, liquid outlet channel 104, mounting bracket 105, pin shaft 106, rocking bar 107,
Valve body mechanism 108, buffer stopper 109, locating slot 113, calutron 120, iron plate 121, electromagnet 122, flap 80, guide post 81,
Locking nut 82, guide groove 83, interconnecting piece 90, the equal terms of buffer part 91, but it does not exclude the possibility of using other terms.Make
It is only for the convenience of describing and explaining the nature of the invention with these terms；It is construed as any additional
Limitation is disagreed with spirit of that invention.
Claims (10)
1. a kind of non-return valve, it is characterised in that: including valve body (100), valve chamber (102) are provided in valve body (100), in valve body
(100) it is provided with the feed pathway (103) being connected with valve chamber (102) on front side of, is provided on rear side of valve body (100) and valve
The liquid outlet channel (104) that chamber (102) is connected is provided with installation in the valve chamber above feed pathway (103) inner channel mouth
Bracket (105) is hinged with rocking bar (107) by pin shaft (106) on mounting bracket (105), is arranged on rocking bar (107) useful
To open or close the valve body mechanism (108) of feed pathway (103) inner channel mouth；Be formed in the valve chamber (102) with to prevent
The only locating slot (113) that valve body mechanism (108) is excessively rotated up, locating slot (113) is interior to be equipped with calutron (120), with
This is corresponding, and iron plate (121) corresponding with calutron (120), the calutron are equipped in valve body mechanism (108)
It (120) include an electromagnet (122)；It is equipped with pump cover (1) on the valve body (100), pump cover (1) is rotationally connected with valve body
(100) on.
2. a kind of non-return valve according to claim 1, it is characterised in that: the pump cover (1) includes positioning plate (6), cover board
(5), hinge (4) and cover board retainer (11)；Described hinge (4) one end connects a unlocking handle (3) by closing piece rotary shaft (7),
The other end is actively socketed on positioning plate (6) by positioning pin (8)；It is installed on the valve body (100) and positioning plate (6) Xiang Shi
The connecting cylinder (16) matched, connecting cylinder (16) top are equipped with connecting cover plate (14), and connecting cover plate (14) is connect with connecting cylinder (16)
Place is additionally provided with sealing ring (18)；The outer ring side of the connecting cover plate (14) is being equipped with several convex blocks with connecting cylinder (16) junction
(14-3), connecting cover plate (14) inner ring side are equipped with and the matched cover board inner groovy (14-1) of cover board retainer (11)；The connection
Cylinder (16) is equipped with connecting cylinder groove (16-2) close to connecting cover plate (14) junction, is formed with and connect with positioning plate (6) junction
Cylinder convex block (16-1)；The convex block (14-3) and connecting cylinder groove (16-2) carve merga pass cover board positioning pin (14-2) positioning and connect
It connects.
3. a kind of non-return valve according to claim 2；It is characterized by: positioning plate (6) inner ring is fixed equipped with several
Position convex block (6-1), locating convex block (6-1) right side are provided with positioning limit nail (6-2)；The positioning limit nail (6-2) is tight
It pastes locating convex block (6-1)；It is convex that the cover board that several correspond to locating convex block (6-1) quantity is formed on the outside of the cover board retainer (11)
Block (11-1)；The cover board convex block (11-1) and cover board inner groovy (14-1) carve merga pass cover board positioning pin (11-2) positioning and connect
It connects；The locating convex block (6-1) and connecting cylinder convex block (16-1) carve merga pass positioning limit nail (6-2) positioning.
4. a kind of non-return valve according to claim 3；It is characterized by: the connecting cover plate (14) and cover board retainer (11)
When docking and rotating to terminal, cover board positioning pin (11-2) is clamped the left part of cover board inner groovy (14-1), corresponding,
The right part of cover board positioning pin (14-2) clamping bump (14-3)；Cover board positioning pin (14-2) is used for cover board positioning pin (11-2)
It limits and blocks firm connecting cover plate (14), and separate connecting cover plate (14) with connecting cylinder (16)；So that pump cover (1) and valve body
(100) it separates.
5. -4 any a kind of non-return valve according to claim 1；It is characterized by also including for locking pump cover (1)
With the retaining mechanism (9) of valve body (100)；The retaining mechanism (9) is fixed on the upper surface of positioning plate (6), and with positioning pin (8)
It is symmetrical arranged.
6. a kind of non-return valve according to claim 5；It is characterized by: closing piece rotary shaft (7) lower end is equipped with positioning
Plate closing piece (10)；Closing piece banking pin (10-1) of described positioning plate closing piece (10) one end with setting in hinge (4) lower end is connect, separately
One end is connected in retaining mechanism (9).
7. a kind of non-return valve according to claim 6, it is characterised in that: valve body mechanism (108) inclination is laid in valve
At the feed pathway (103) of body (100)；Valve body mechanism (108) and feed pathway (103) tilt angle are 5 °~25 °.
8. a kind of non-return valve according to claim 7, it is characterised in that: the two sides of the valve body mechanism (108) are installed with
Buffer stopper (9), the distance between two buffer stoppers (9) bottom are consistent with the internal diameter of feed pathway (103).
9. a kind of non-return valve according to claim 8, it is characterised in that: the valve body mechanism (108) includes flap (80)；
It is provided with mounting hole on rocking bar (107), the movable guide post (81) across mounting hole is provided on flap (80), guide post is lived upwards
It is dynamic that the locking nut (82) that flap (80) can be locked on rocking bar (107) is connected with after mounting hole；Iron plate (121)
It is installed on locking nut (82).
10. a kind of non-return valve according to claim 9, it is characterised in that: (80) two side bottom of flap, which is formed with, leads
To slot (83), buffer stopper (9) is connected in guide groove (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680225.9A CN110360351A (en) | 2019-07-26 | 2019-07-26 | A kind of non-return valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910680225.9A CN110360351A (en) | 2019-07-26 | 2019-07-26 | A kind of non-return valve |
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| CN110360351A true CN110360351A (en) | 2019-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910680225.9A Pending CN110360351A (en) | 2019-07-26 | 2019-07-26 | A kind of non-return valve |
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| CN (1) | CN110360351A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096606A (en) * | 2020-08-20 | 2020-12-18 | 陶必 | Power-off self-closing anti-backflow metal conical screw pump for oil exploitation |
-
2019
- 2019-07-26 CN CN201910680225.9A patent/CN110360351A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096606A (en) * | 2020-08-20 | 2020-12-18 | 陶必 | Power-off self-closing anti-backflow metal conical screw pump for oil exploitation |
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