CN208010970U - A kind of one-way valve structures and constant displacement pump - Google Patents
A kind of one-way valve structures and constant displacement pump Download PDFInfo
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- CN208010970U CN208010970U CN201820229185.7U CN201820229185U CN208010970U CN 208010970 U CN208010970 U CN 208010970U CN 201820229185 U CN201820229185 U CN 201820229185U CN 208010970 U CN208010970 U CN 208010970U
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Abstract
The utility model is related to valve technology fields, provide a kind of one-way valve structures and constant displacement pump, one-way valve structures include valve sheet and valve plate rack, valve sheet includes mounting portion and sealing, sealing is coated on the side wall of valve plate rack, and the edge of sealing mutually reclines with the side wall of valve plate rack；Compared with traditional valve piece, the valve sheet and valve plate rack of the utility model form clad type sealing so that valve sheet can preferably be bonded valve plate rack, and the reliability and stability of sealing can be improved.The one-way valve structures are set in constant displacement pump to control liquid directed flow, the one-way valve structures of clad type to seal more reliable, more stable, liquid reverse flow is effectively prevented, so that quantitative accurate, solves the problems, such as that quantitative accuracy fluctuates that larger, determine drain insufficient in the prior art.
Description
Technical field
The utility model is related to valve technology field more particularly to a kind of one-way valve structures and constant displacement pumps.
Background technology
Check valve is commonly used in hydraulic pressure or baric systerm, prevents fluid reverse flow, or prevent compressed air reverse flow
It is dynamic, the one-way flow of fluid or gas is generally realized to the opening of inlet and outlet or closure by check valve diaphragm.Conventional is unidirectional
Valve film seals stability and reliability is poor, and for hydraulic system, the sealing performance of check valve is that can hydraulic system
Normal one of the key factor accurately operated, such as the sealing performance of constant displacement pump play crucial make to the precision and stability of lifting rate
With in the prior art, the sealing structure of constant displacement pump includes：(1) specific solenoid valve collective effect need to be coordinated just by power source
Quantitative effect can be played；(2) valve is directly integrated on constant displacement pump；(3) inlet and outlet be arranged traditional check valve diaphragm into
Row sealing.Wherein, (1), (2) two schemes need to coordinate specific solenoid valve that can just work, thus its suitable application area and at
Present aspect has certain limitation, and the sealing stability and reliability of check valve diaphragm are poor in scheme (3), into and out of oral fluid
When potential difference is larger, easily there is quantitative accuracy and fluctuate situation that is larger, determining drain deficiency.Accordingly, it is desirable to provide one kind can be improved it is close
The one-way valve structures of stability and reliability and a kind of quantitative accurate constant displacement pump are sealed, to solve the above problems.
Utility model content
The technical problem to be solved by the utility model is to provide it is a kind of can be improved sealing stability and reliability it is unidirectional
Valve arrangement and a kind of quantitative accurate constant displacement pump.
Technical solution is used by the utility model solves above-mentioned technical problem：
A kind of one-way valve structures, including valve plate rack and valve sheet are provided, setting is free on the valve plate rack
Chamber and channel, the cavity are connected to by the channel with outside, and the valve sheet includes mounting portion and sealing, the installation
Portion is connect with the valve plate rack, and the sealing is coated on the side wall of the valve plate rack, the side of the sealing
It mutually reclines along the side wall with the valve plate rack；When external pressure is less than the internal pressure of the cavity, cavity inside
Substance can be flowed to by the channel outside cavity under the action of pressure difference, when the inside that external pressure is more than the cavity is pressed
When power, the sealing is adjacent to the side wall of the valve plate rack under the action of pressure difference so that the channel is closed, and institute
The outlet in the channel opposite with the position that the valve plate rack is in sealing contact of stating sealing detaches.
As an improvement of the above technical solution, the channel forms passway on the side wall of the valve plate rack, institute
It states sealing and covers the passway.
As a further improvement of the above technical scheme, the channel includes interconnected first segment and second segment, institute
It states second segment to extend radially to be connected to the first segment along the valve plate rack from the side wall of the valve plate rack, institute
Second segment is stated to be mutually perpendicular to the first segment.
As a further improvement of the above technical scheme, the mounting portion is column structure, is set on the valve plate rack
It is equipped with a mounting hole, the valve sheet is threaded through in the mounting hole by the mounting portion and realizes connection.
As a further improvement of the above technical scheme, the sealing is described close along the circumferentially disposed of the mounting portion
Envelope portion is tilted from bottom to edge to close to the direction of the mounting portion, the inner surface of the sealing and the valve plate rack
Side wall between there are gaps.
As a further improvement of the above technical scheme, a drum face structure outwardly protruded is provided on the mounting portion,
The maximum gauge of the drum face structure is more than the diameter of the mounting hole, and the valve sheet is mounted on the valve plate rack
When, the drum face structure position is in the cavity.
It additionally provides a kind of constant displacement pump, including admission chamber, goes out sap cavity and inner cavity, it is unidirectional that first is provided in the admission chamber
Valve arrangement, it is described go out sap cavity in be provided with the second one-way valve structures, further include that the first passage being connected to admission chamber and third are logical
Road, and goes out the second channel and fourth lane that sap cavity is connected to, and first one-way valve structures and second one-way valve structures are equal
For one-way valve structures described in any one of the above embodiments, wherein：
The cavity in first one-way valve structures is the first cavity, and the cavity in second check valve is
Second cavity；
The admission chamber is connected to by the first passage with external pipe, and is connected by third channel and the inner cavity
Logical, first cavity is connected to the first passage；
It is described go out sap cavity be connected to external pipe by the second channel, and pass through fourth lane and the inner cavity and connect
Logical, second cavity is connected to the fourth lane；
When pressure becomes small in the inner cavity, the first one-way valve structures are opened, and the second one-way valve structures are closed, external pipe
In liquid enter admission chamber from the first passage and pass sequentially through the first one-way valve structures, third channel enter it is described in
Chamber；When the pressure in the inner cavity becomes larger, the first one-way valve structures are closed, and the second one-way valve structures are opened, in the inner cavity
Liquid by fourth lane enter sap cavity and pass sequentially through the second one-way valve structures, second channel is discharged to the outside pipeline
In.
As an improvement of the above technical solution, including valve body, cavity, pump frame, shell and diaphragm, wherein：
The first chamber and the second chamber are provided on the valve body, the first passage and the second channel are arranged in the valve
On body, the first passage is connected to first chamber, and the second channel is connected to second chamber；
Third chamber and the 4th chamber are provided on the cavity, the third channel, the fourth lane and the inner cavity are equal
It is arranged on the cavity, the third channel is connected to the third chamber, and the fourth lane is connected to the 4th chamber；
The valve plate rack in first one-way valve structures is the first valve plate rack, the second check valve knot
The valve plate rack in structure is the second valve plate rack, and the first valve plate rack is arranged in first chamber, institute
The second valve plate rack is stated to be arranged in the 4th chamber；
The valve body is removably secured with the cavity and connect, and first chamber and the third chamber are corresponding and common
Form the admission chamber, second chamber and the 4th chamber it is corresponding and collectively constitute it is described go out sap cavity, the valve body and institute
State cavity junction be provided with for the admission chamber and it is described go out the sealing element that is sealed of sap cavity；
The cavity is removably secured with the pump frame and connect, and the diaphragm is arranged in the inner cavity, and right
The inner cavity is closed, and the diaphragm can carry out flexible deformation under external force, so that the pressure production of interior intracavitary
Changing；
The pump frame is removably secured with the shell and connect, and driving device is provided in the shell, is used for band
The diaphragm is moved to be deformed or restored.
As a further improvement of the above technical scheme, the installation for installing diaphragm is provided on the pump frame
The outer edge of slot, the diaphragm is provided with installation rib, and the installation rib is mounted in the mounting groove.
As a further improvement of the above technical scheme, electromagnetic coil, dynamic iron and buting iron are provided in the shell, it is described
One end of dynamic iron is fixedly connected with the diaphragm, and the other end is connect by elastic component with the buting iron, the buting iron with it is described
Shell is fixedly connected；When the electromagnetic coil is powered, the dynamic iron can be along the enclosure interior to the side far from the diaphragm
To movement, to pull the diaphragm that flexible deformation occurs, while the elastic component is compressed；When the electromagnetic coil power-off,
The dynamic iron back moves under the action of the elastic component so that the diaphragm restores.
The utility model has the beneficial effects that：
Cavity and channel are provided on valve plate rack, cavity is connected to by channel with outside, and valve sheet includes mounting portion
And sealing, mounting portion and valve plate rack are detachably connected, and sealing is coated on the side wall of valve plate rack, sealing
The side wall at edge and valve plate rack mutually recline；When external pressure is less than the internal pressure of cavity, the substance of cavity inside
It can be flowed to outside cavity by channel under the action of pressure difference, when external pressure is more than the internal pressure of cavity, sealing
The side wall of valve plate rack is adjacent under the action of pressure difference so that channel is closed, and realizes the effect of one-way flow.With conventional valve
Door piece is compared, and the valve sheet and valve plate rack of the utility model form clad type sealing so that valve sheet can be preferably bonded
Valve plate rack, can be improved sealing reliability and stability.The one-way valve structures are arranged for controlling liquid oriented flow in constant displacement pump
It is dynamic so that sealing is more reliable, more stable, effectively prevents liquid reverse flow, so that it is quantitative accurate, solve existing skill
Quantitative accuracy fluctuates problem that is larger, determining drain deficiency in art.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used briefly describes：
Fig. 1 is the structural schematic diagram of the utility model one-way valve structures one embodiment；
Fig. 2 is the stereoscopic schematic diagram of valve sheet one embodiment in the utility model；
Fig. 3 is the stereoscopic schematic diagram of valve plate rack one embodiment in the utility model；
Fig. 4 is the structural schematic diagram of the utility model constant displacement pump one embodiment；
Fig. 5 is the structural schematic diagram of valve body, cavity and pump frame one embodiment in Fig. 4.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations arrived involved in patent, not singly refer to component and directly connect, and referring to can be according to specific
Performance, by adding or reducing couple auxiliary, to form more preferably coupling structure.In the utility model it is involved it is upper,
Under, the orientation such as left and right description be only for the mutual alignment relation of each component part of the utility model in attached drawing.
Each technical characteristic in the utility model, can be with combination of interactions under the premise of not conflicting conflict.
With reference to Fig. 1~3, the one-way valve structures 100 of the present embodiment include valve plate rack 110 and valve sheet 120,
Cavity 111 and channel 112 are provided on valve plate rack 110, cavity 111 is connected to by channel 112 with outside, valve sheet 120
Including mounting portion 121 and sealing 122, mounting portion 121 and valve plate rack 110 are detachably connected, and sealing 122 is coated on
On the side wall 115 of valve plate rack 110, the edge 1221 of sealing 122 reclines with 115 phase of side wall of valve plate rack 110, shape
At clad type valve sheet.
In the present embodiment, channel 112 forms passway 113 on the side wall 115 of valve plate rack 110, and cavity 111 is logical
It crosses channel 112 and passway 113 to be connected to outside, sealing 122 covers passway 113.Channel 112 includes the to be interconnected
One section 1121 and second segment 1122, first segment 1121 is perpendicular to the bottom of cavity 111, and second segment 1122 is from valve plate rack 110
Side wall 115 extend radially to be connected to first segment 1121 along valve plate rack 110, second segment 1122 and first segment 1121
It is mutually perpendicular to.
Mounting portion 121 is column structure, is provided with a mounting hole 114 on valve plate rack 110, valve sheet 120 passes through peace
Dress portion 121, which is threaded through in mounting hole 114, realizes connection, further includes erecting bed 123 on mounting portion 121, correspondingly, valve sheet branch
Holding tank 116 is provided on frame 110, when valve sheet 120 is mounted on valve plate rack 110, which is placed in the receiving
In slot 116.Sealing 122 is circumferentially disposed along mounting portion 121 so that valve sheet section is " mountain " font, corresponding " mountain " word two
Pair the two of side erect as the section of sealing 122, and sealing 122 is tilted from bottom to edge to close to the direction of mounting portion 121, i.e.,
The two perpendicular from top to bottom to intermediate, inclined of " mountain " word both sides is answered, to form inclined inner wall so that the edge of sealing 122 with
115 phase of side wall of valve plate rack 110 reclines, between 122 inclined inner wall of sealing and the side wall 115 of valve plate rack 110
Form certain gap 130.When external pressure is less than the internal pressure of cavity 111, the substance inside cavity 111 is in pressure difference
Under the action of can flow to the gap 130 by channel 112, and from the contact position at the edge of sealing 122 and valve plate rack 110
Flow out to outside.
A drum face structure 1211 outwardly protruded is provided on mounting portion 121, valve sheet 120 is mounted on valve plate rack
When on 110, drum face structure 1211 is located in cavity 111, and the maximum gauge of drum face structure 1211 is more than the diameter of mounting hole 114,
It effectively prevent valve sheet 120 to be detached from mounting hole 114.
When 111 external pressure of cavity is less than the internal pressure of cavity 111, the substance inside cavity 111 is in pressure difference
Gap 130 can be flowed under effect by channel 112, and is flowed from the contact position of the edge of sealing 122 and valve plate rack 110
Go out to outside, one-way valve structures are in an open state at this time；When external pressure is more than the internal pressure of cavity 111, sealing 122
It is adjacent to the side wall 115 of valve plate rack 110 under the action of own resilient and pressure difference, forms sealing structure, at this time check valve
Structure is in off state, and external substance can not enter passway by the junction of sealing 122 and valve plate rack 110
113, therefore the substance outside cavity 111 cannot be introduced into cavity 111, to form one-way valve structures, realize one-way flow
Effect.
Conventional one-way valve structures, valve sheet at the passway of liquid in-out to being sealed, usually because of valve sheet sealing position
It sets and differs and lead to poor sealing, to ensure valve sheet and the good compactness in passway, valve sheet is generally relatively thin, service life
It is shorter.And the utility model is different from conventional one-way valve structures, the valve sheet 120 of the utility model is clad type valve sheet,
Compared with traditional valve piece, clad type sealing is formed so that valve sheet can preferably be bonded valve plate rack；Valve sheet and valve
The sealing station of plate rack and the passway of liquid in-out distinguish, and solve in the prior art because valve sheet sealing station differs
And the problem of leading to poor sealing so that sealing is more reliable, more stable；Avoid cause because of a valve sheet surface failure it is close
Seal bad phenomenon；The thickness of sealing station is bigger than the thickness of traditional valve piece, improves service life.
Above-mentioned one-way valve structures can be applicable in a variety of sealing structures such as constant displacement pump, diaphragm pump, or check valve is made
Directly with pump or piping connection, it can preferably ensure the tightness, stability and reliability of leakproofness, and improve using the longevity
Life.
Fig. 4 is the structural schematic diagram of the utility model constant displacement pump one embodiment, and Fig. 5 is valve body in Fig. 4, cavity and pump bottom
The structural schematic diagram of seat one embodiment, with reference to Fig. 4,5, constant displacement pump includes valve body 200, cavity 300, pump frame 400, shell
Body 500 and diaphragm 600, wherein：
The first chamber 210, the second chamber 220, first passage 230 and second channel 240, first passage are provided on valve body 200
230 are connected to the first chamber 210, and second channel 240 is connected to the second chamber 220.
Third chamber 310, the 4th chamber 320, third channel 330, fourth lane 340 and inner cavity 350 are provided on cavity 300,
Third channel 330 is connected to third chamber 310, and fourth lane 340 is connected to the 4th chamber 320, third channel 330, fourth lane 340
It is connected to inner cavity 350.
Valve body 200 is removably secured with cavity 300 and connect, corresponding and common with third chamber 310 group of the first chamber 210
At admission chamber A, the second chamber 220 and the 4th chamber 320 are corresponding and collectively constitute out sap cavity B, the connection of valve body 200 and cavity 300
Place is provided with for admission chamber A and going out the sealing element 360 that sap cavity B is sealed；Admission chamber A and go out in sap cavity B to be both provided with
Previously described one-way valve structures 100 are provided with the first one-way valve structures 1001 in admission chamber A, go out in sap cavity B to be provided with
Two one-way valve structures 1002, the valve plate rack in the first one-way valve structures 1001 are the first valve plate rack 1101, and second is single
Valve plate rack into valve arrangement 1002 is the second valve plate rack 1102, and the first valve plate rack 1101 is arranged in the first chamber
In 210, the second valve plate rack 1102 is arranged in the 4th chamber 320.Cavity in first one-way valve structures 1001 is first empty
Chamber 1111, the cavity in the second one-way valve structures 1002 are the second cavity 1112；
Admission chamber A is connected to by first passage 230 with external pipe, and is connected to inner cavity 350 by third channel 330,
First cavity 1111 is connected to first passage 230；
Go out sap cavity B to be connected to external pipe by second channel 240, and be connected to inner cavity 350 by fourth lane 340,
Second cavity 1112 is connected to fourth lane 340；
Cavity 300 is removably secured with pump frame 400 and connect, and diaphragm 600 is arranged in inner cavity 350, and to inner cavity
It is closed, diaphragm 600 can carry out flexible deformation under external force, so that the pressure in inner cavity 350 generates variation.
Pump frame 400 is removably secured with shell 500 and connect, and driving device 700 is provided in shell 500, is used for band
Dynamic diaphragm 600 is deformed or is restored.It is provided with the mounting groove 410 for installing diaphragm 600 on pump frame 400 and is used for
The accommodating chamber 420 in space is provided for the flexible deformation of diaphragm 600, the outer edge of diaphragm 600 is provided with installation rib 610, peace
It fills rib 610 to be mounted in mounting groove 410 so that when flexible deformation occurs for diaphragm 600, installation rib 610 is maintained at installation
In slot 410.Accommodating chamber 420 is corresponding with the position of inner cavity 350.
Driving device 700 includes electromagnetic coil 710, dynamic iron 720 and buting iron 730, moves one end and the diaphragm 600 of iron 720
It is fixedly connected, the other end is connect by elastic component 740 with buting iron 730, and buting iron 730 is fixedly connected with shell 500；Electromagnetic coil
When 710 energization, dynamic iron 720 can move inside shell 500 to the direction far from diaphragm 600, to pull diaphragm 600 to send out
Raw flexible deformation so that pressure reduction in inner cavity 350, while compression elastic piece 740；When electromagnetic coil 710 powers off, iron 720 is moved
It is back moved under the action of elastic component 740 so that diaphragm 600 restores, and to squeeze the liquid in inner cavity 350, keeps its past
Outer flowing.
Further include regulating device 800, the position of buting iron 730 is adjusted, it, can be according to itself to be finely adjusted to discharge capacity
Actual use operating mode discharge capacity is finely adjusted to meet different demands.
When electromagnetic coil 710 is powered, moves iron 720 and diaphragm 600 is pulled to deform, pressure becomes smaller in inner cavity 350, feed liquor
Pressure in chamber A is less than the pressure in the first cavity 1111, and the pressure in the second cavity 1112 is less than the pressure in sap cavity B,
So that the first one-way valve structures 1001 are opened, the second one-way valve structures 1002 are closed, therefore the liquid in external pipe is logical from first
Road 230 enters admission chamber A and passes sequentially through the first one-way valve structures 1001, third channel 330 enters inner cavity 350；Work as electromagnetism
When coil 710 powers off, moves iron 720 and restore to the original state to 350 direction return of inner cavity, diaphragm 600 under the action of elastic component 740
And squeeze the liquid in inner cavity 350 so that the pressure in admission chamber A is more than the pressure in the first cavity 1111, the second cavity
Pressure in 1112 is more than the pressure in sap cavity B so that the first one-way valve structures 1001 are closed, the second one-way valve structures 1002
It opens, effectively prevents liquid reverse flow, the liquid in inner cavity 350 enters sap cavity B by fourth lane 340 and passes sequentially through
Second one-way valve structures 1002, second channel 240 are discharged to the outside in pipeline.
As it was noted above, the first one-way valve structures 1001 and the second one-way valve structures 1002 are not only simple in structure, and have
The characteristics of sealing more reliable, more stable, longer life expectancy, it is reliable, stablize for controlling liquid directed flow in constant displacement pump
Sealing performance can effectively prevent liquid reverse flow, and the valve sheet of clad type is influenced smaller by inlet and outlet liquid level difference, is effectively solved
There is quantitative accuracy and fluctuates big or drain deficiency problem in inlet and outlet of having determined liquid level difference when larger, ensure that good, highly reliable
The sealing effect of property, and sealing station is not easy to wear；Solve in the prior art due to seal it is unstable caused by lifting rate and
The unstable problem of drain precision.
The preferred embodiment of the utility model is above are only, but the utility model is not restricted to embodiment, is familiar with ability
The technical staff in domain can also make a variety of equivalent variations or replacement without departing from the spirit of the present invention, these etc.
Same deformation or replacement is all contained in the application claim limited range.
Claims (10)
1. a kind of one-way valve structures, it is characterised in that：Including valve plate rack and valve sheet, it is provided on the valve plate rack
Cavity and channel, the cavity are connected to by the channel with outside, and the valve sheet includes mounting portion and sealing, the peace
Dress portion is connect with the valve plate rack, and the sealing is coated on the side wall of the valve plate rack, the sealing
The side wall at edge and the valve plate rack mutually reclines；When external pressure is less than the internal pressure of the cavity, cavity inside
Substance can be flowed to outside cavity by the channel under the action of pressure difference, when external pressure be more than the cavity inside
When pressure, the sealing is adjacent to the side wall of the valve plate rack under the action of pressure difference so that and the channel is closed, and
The outlet in the sealing channel opposite with the position that the valve plate rack is in sealing contact detaches.
2. one-way valve structures according to claim 1, it is characterised in that：Side wall of the channel in the valve plate rack
Upper formation passway, the sealing cover the passway.
3. one-way valve structures according to claim 2, it is characterised in that：The channel include interconnected first segment and
Second segment, the second segment extend radially to and described first from the side wall of the valve plate rack along the valve plate rack
Duan Liantong, the second segment are mutually perpendicular to the first segment.
4. one-way valve structures according to claim 1, it is characterised in that：The mounting portion is column structure, the valve
A mounting hole is provided on plate rack, the valve sheet is threaded through in the mounting hole by the mounting portion and realizes connection.
5. one-way valve structures according to claim 1, it is characterised in that：The sealing is set along the circumferential direction of the mounting portion
Set, the sealing from bottom to edge to close to the mounting portion direction tilt, the inner surface of the sealing with it is described
There are gaps between the side wall of valve plate rack.
6. one-way valve structures according to claim 4, it is characterised in that：One is provided on the mounting portion to outwardly protrude
Drum face structure, the maximum gauge of the drum face structure are more than the diameter of the mounting hole, and the valve sheet is mounted on the valve
When on plate rack, the drum face structure position is in the cavity.
7. a kind of constant displacement pump, it is characterised in that：Including admission chamber, go out sap cavity and inner cavity, it is single that first is provided in the admission chamber
To valve arrangement, it is described go out sap cavity in be provided with the second one-way valve structures, further include the first passage being connected to admission chamber and third
Channel, and goes out the second channel and fourth lane that sap cavity is connected to, first one-way valve structures and second one-way valve structures
It is the one-way valve structures described in any one of claim 1~6, wherein：
The cavity in first one-way valve structures is the first cavity, and the cavity in second check valve is second
Cavity；
The admission chamber is connected to by the first passage with external pipe, and is connected to the inner cavity by third channel, institute
The first cavity is stated to be connected to the first passage；
It is described go out sap cavity be connected to external pipe by the second channel, and be connected to the inner cavity by fourth lane, institute
The second cavity is stated to be connected to the fourth lane；
When pressure becomes small in the inner cavity, the first one-way valve structures are opened, and the second one-way valve structures are closed, in external pipe
Liquid enters admission chamber from the first passage and passes sequentially through the first one-way valve structures, third channel enters the inner cavity；When
When pressure in the inner cavity becomes larger, the first one-way valve structures are closed, and the second one-way valve structures are opened, the liquid in the inner cavity
By fourth lane enter sap cavity and pass sequentially through the second one-way valve structures, second channel is discharged to the outside in pipeline.
8. constant displacement pump according to claim 7, it is characterised in that：Including valve body, cavity, pump frame, shell and diaphragm,
Wherein：
The first chamber and the second chamber are provided on the valve body, the first passage and the second channel are arranged in the valve body
On, the first passage is connected to first chamber, and the second channel is connected to second chamber；
Third chamber and the 4th chamber are provided on the cavity, the third channel, the fourth lane and the inner cavity are respectively provided with
On the cavity, the third channel is connected to the third chamber, and the fourth lane is connected to the 4th chamber；
The valve plate rack in first one-way valve structures is the first valve plate rack, in second one-way valve structures
The valve plate rack be the second valve plate rack, the first valve plate rack is arranged in first chamber, described the
Two valve plate racks are arranged in the 4th chamber；
The valve body is removably secured with the cavity and connect, and first chamber is corresponding with the third chamber and collectively constitutes
The admission chamber, second chamber and the 4th chamber it is corresponding and collectively constitute it is described go out sap cavity, the valve body and the chamber
The junction of body be provided with for the admission chamber and it is described go out the sealing element that is sealed of sap cavity；
The cavity is removably secured with the pump frame and connect, and the diaphragm is arranged in the inner cavity, and to described
Inner cavity is closed, and the diaphragm can carry out flexible deformation under external force, so that the pressure of interior intracavitary generates change
Change；
The pump frame is removably secured with the shell and connect, and driving device is provided in the shell, for driving
Diaphragm is stated to be deformed or restored.
9. constant displacement pump according to claim 8, it is characterised in that：It is provided on the pump frame for installing diaphragm
The outer edge of mounting groove, the diaphragm is provided with installation rib, and the installation rib is mounted in the mounting groove.
10. constant displacement pump according to claim 9, it is characterised in that：Electromagnetic coil, dynamic iron and gear are provided in the shell
One end of iron, the dynamic iron is fixedly connected with the diaphragm, and the other end is connect by elastic component with the buting iron, the buting iron
It is fixedly connected with the shell；When the electromagnetic coil is powered, the dynamic iron can be along the enclosure interior to far from the diaphragm
The direction of piece moves, and to pull the diaphragm that flexible deformation occurs, while compressing the elastic component；The electromagnetic coil is disconnected
When electric, the dynamic iron back moves under the action of the elastic component so that the diaphragm restores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820229185.7U CN208010970U (en) | 2018-02-08 | 2018-02-08 | A kind of one-way valve structures and constant displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820229185.7U CN208010970U (en) | 2018-02-08 | 2018-02-08 | A kind of one-way valve structures and constant displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208010970U true CN208010970U (en) | 2018-10-26 |
Family
ID=63885361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820229185.7U Active CN208010970U (en) | 2018-02-08 | 2018-02-08 | A kind of one-way valve structures and constant displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208010970U (en) |
-
2018
- 2018-02-08 CN CN201820229185.7U patent/CN208010970U/en active Active
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