CN206397704U - A kind of membrane pump not flowed back - Google Patents
A kind of membrane pump not flowed back Download PDFInfo
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- CN206397704U CN206397704U CN201720042016.8U CN201720042016U CN206397704U CN 206397704 U CN206397704 U CN 206397704U CN 201720042016 U CN201720042016 U CN 201720042016U CN 206397704 U CN206397704 U CN 206397704U
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Abstract
The utility model discloses a kind of membrane pump not flowed back, including the pump housing, cover plate, support, diaphragm, seal die cavity, drive mechanism, inlet valve, flowing water Valve, buffer cavity, dividing plate, first buffering cavity and the second buffering cavity, the membrane pump not flowed back, due to being provided with buffering cavity inside cover plate, and it is divided into the first buffering cavity and second to buffer cavity buffering cavity by dividing plate, therefore in water inlet, the first buffering cavity is filled up first, the second buffering cavity is filled up in draining, therefore in continuous pump water, solid stream of water can be formed, avoid discontinuity pump water, so as to avoid water hammer, reduce noise；Quickly fitted with the valve port in valve body by rubber seal valve piece；Prevent that water flows back when motor from stalling；Therefore on the loop of backflow one check valve of economization, so as to reduce cost.
Description
Technical field
The utility model is related to a kind of liquid pump, more particularly to a kind of membrane pump not flowed back.
Background technology
The diaphragm pump structure of current same type is main by motor, eccentric shaft, bearing, connecting rod, diaphragm, valve sheet, support,
End cap, valve body, the pump housing, the part such as cover plate composition.Operation principle：When electrical power rotates, eccentric shaft rotary motion passes through
Connecting rod drives diaphragm to pump.When diaphragm is moved downward, pump housing internal volume increase, inlet valve sheet is beaten
Open, leakage fluid dram valve sheet is closed, imbibition process is completed in liquid suction pump body；When diaphragm is moved upwards, pump housing internal volume
Reduce, inlet valve sheet is closed, leakage fluid dram valve sheet is opened, liquid is extruded out of the pump housing, complete discharge opeing process.Due to motor
It is high-speed and continuous operating, membrane pump is the multiplication ring process for being continuously finished imbibition, discharge opeing.And current membrane pump major defect
Have：Because imbibition and discharge opeing are discontinuity, when inlet valve sheet is closed suddenly, due to the impact of feed tube liquid flow movement
（Also it is water hammer）The pump housing is set to produce vibration and noise；When liquid outlet valve sheet is closed suddenly, drain pipe liquid flow movement is
Interrupt, the change of output pressure equally produces impact phenomenon（Also it is water hammer）Make output pipe pressure oscillation big, produce simultaneously
Raw vibration and noise；And existing water pump needs a logical check valve to prevent from flowing back, therefore the cost of increase water pump.In view of
Disadvantages described above, is necessary a kind of membrane pump not flowed back of design in fact.
Utility model content
Technical problem to be solved in the utility model is：A kind of membrane pump not flowed back is provided, come solve at present every
The problem of membrane pump runs big noise and high cost.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of membrane pump not flowed back, including pump
Body, cover plate and support, the cover plate and support distribution are located at the pump housing two ends, are set between the support and the pump housing
There is diaphragm, one is formed between the diaphragm and the pump housing and seals die cavity, the support is provided with drive mechanism, the driving machine
Structure one end is connected with the diaphragm, and the drive mechanism drives the diaphragm to pump, and the pump housing is provided with
Inlet valve and flowing water Valve, the inlet valve and the flowing water Valve are communicated with the sealing die cavity, inside the cover plate
Provided with buffering cavity, the buffering inside cavity is provided with dividing plate, and the buffering cavity is divided into the first buffering cavity by the dividing plate
With the second buffering cavity, the first buffering cavity is communicated with the inlet valve, the second buffering cavity and the water outlet
Valve is communicated；The flowing water Valve includes valve body and the rubber valve piece being connected with the valve body；The rubber valve piece is located at
The upper end of the valve port of the valve body；The valve port raises up；The rubber valve piece is rubber body and diaphragm seal；It is described close
Elastic joint part is provided between mounting and the rubber body；The rubber body is fixedly connected with the valve body, the sealing
Piece is fitted with the valve port.
Further, the drive mechanism includes motor and transmission mechanism, and the motor is on the support, the transmission
Mechanism is in the support, and the transmission mechanism one end and the motor connection, the other end are connected with the diaphragm, the electricity
Machine drives the transmission mechanism to drive the diaphragm to move back and forth.
Further, the transmission mechanism includes eccentric shaft, bearing and connecting rod, and the eccentric shaft is on the motor, institute
Bearing holder (housing, cover) is stated on the eccentric shaft, the connecting rod is sheathed on the bearing, and the connecting rod one end connects with the diaphragm
Connect.
Further, it is additionally provided with the first cushion chamber body in the first buffer film, the second cushion chamber body and is additionally provided with
Two buffer films.
Further, the drive mechanism is detachably connected with the diaphragm, the cover plate and the support and the pump
Body is detachably connected.
Compared with prior art, the membrane pump not flowed back, drives separator sheets to move up and down by drive mechanism so that every
The sealing die cavity formed between diaphragm and the pump housing constantly diminishes and become greatly, when sealing cavity space becomes big, inlet valve
Automatically open up, water enters closed type intracavitary portion by inlet valve, when diaphragm is up extruded, flowing water Valve is beaten automatically
Open, inlet valve is closed automatically, therefore water is discharged from flowing water Valve, so that pump water is realized, due to being provided with buffering inside cover plate
Cavity, and cavity will be buffered by dividing plate be divided into the first buffering cavity and second to buffer cavity, therefore in water inlet, first by the
One buffering cavity is filled up, and is filled up the second buffering cavity in draining, therefore in continuous pump water, can form solid stream of water, keep away
Exempt from discontinuity pump water, so as to avoid water hammer, reduce vibration and noise；Due to flowing water Valve include valve body and with
The rubber valve piece of the valve body connection；The rubber valve piece is located at the upper end of the valve port of the valve body；The valve port is upward
It is raised；The rubber valve piece is rubber body and diaphragm seal；Between the diaphragm seal and the rubber body provided with elasticity even
Socket part；The rubber body is fixedly connected with the valve body, and the diaphragm seal is fitted with the valve port；And pass through connecting portion pair
Diaphragm seal produces elastic pulling force so that diaphragm seal is quickly fitted with valve port, prevents water from flowing back；Effectively raise the work effect of pump
Rate, therefore one check valve of economization on the loop of backflow, so as to reduce cost.
Brief description of the drawings
Fig. 1 is the sectional view for the membrane pump not flowed back；
Fig. 2 is the sectional view for the membrane pump support not flowed back；
Fig. 3 is the stereogram for the membrane pump flowing water Valve not flowed back.
Following embodiment will be further illustrated with reference to above-mentioned accompanying drawing.
Embodiment
Hereinafter, a variety of specific details are elaborated, to provide the saturating of the concept to constituting described embodiment basis
It is thorough to understand.However, it will be apparent to those skilled in the art that described embodiment can be in these no specific details
In it is some or all in the case of put into practice.In other cases, well-known process step is not specifically described.
As Figure 1-3, a kind of membrane pump not flowed back, including the pump housing 1, cover plate 2 and support 3, the cover plate 2 and described
The distribution of support 3 is located at the two ends of the pump housing 1, and diaphragm 4, the diaphragm 4 and institute are provided between the support 3 and the pump housing 1
Formation one seals die cavity 5 between stating the pump housing 1, and the support 3 is provided with drive mechanism 6, the one end of drive mechanism 6 and the barrier film
Piece 4 is connected, and the drive mechanism 6 drives the diaphragm 4 to pump, and the pump housing 1 is provided with inlet valve 7 and goes out
Penstock 8, the inlet valve 7 and the flowing water Valve 8 are communicated with the sealing die cavity 5, and the inside of cover plate 2 is provided with buffering
Cavity 9, the inside of buffering cavity 9 is provided with dividing plate 10, and the buffering cavity 9 is divided into the first buffering cavity by the dividing plate 10
901 and second buffer cavity 902, and the first buffering cavity 901 is communicated with the inlet valve 7, the second buffering cavity
902 communicate with the flowing water Valve 8.The flowing water Valve 8 includes valve body 81 and the rubber valve piece being connected with the valve body 81
82；The rubber valve piece 82 is located at the upper end of the valve port of the valve body 81；The valve port 81 raises up；The rubber valve
Piece 82 is rubber body and diaphragm seal；Elastic joint part is provided between the diaphragm seal and the rubber body；The rubber sheet
Body is fixedly connected with the valve body 81, and the diaphragm seal is fitted with the valve port.The membrane pump not flowed back, leads to drive mechanism 6
Separator sheets 4 are driven to move up and down so that the sealing die cavity 5 formed between diaphragm 4 and the pump housing 1 constantly diminishes and become big,
When sealing die cavity 5 space becomes big, inlet valve 7 is automatically opened up, and water is entered inside sealing die cavity 5 by inlet valve 7, when
When diaphragm 4 is up extruded, flowing water Valve 8 is automatically opened up, and inlet valve 7 is closed automatically, therefore water is discharged from flowing water Valve 8,
So as to realize pump water, due to being divided into the first buffering by cavity 9 is buffered provided with buffering cavity 9, and by dividing plate 10 inside cover plate 2
Cavity 901 and second buffers cavity 902, therefore in water inlet, first fills up the first buffering cavity 901, in draining by the
Two buffering cavitys 902 are filled up, therefore in continuous pump water, can form solid stream of water, it is to avoid discontinuity pump water, so as to avoid
Water hammer occurs, and reduces vibration and noise.Quickly fitted by diaphragm seal with valve port, prevent water from flowing back；Effectively raise
The operating efficiency of pump.Therefore on the loop of backflow one check valve of economization, so as to reduce cost.Wherein inlet valve 7 and go out
The structure of penstock 8 is identical.
Further, the drive mechanism 6 includes motor 601 and transmission mechanism 602, and the motor 601 is located at the support 3
On, the transmission mechanism 602 is in the support 3, and the one end of transmission mechanism 602 is connected with the motor 601, the other end and
The diaphragm 4 is connected, and the motor 601 drives the transmission mechanism 602 to drive the diaphragm 4 to move back and forth.
Further, the transmission mechanism 602 includes eccentric shaft 611, bearing 612 and connecting rod 613, and the eccentric shaft 611 is set
In on the motor 601, the bearing 612 is sheathed on the eccentric shaft 611, and the connecting rod 613 is sheathed on the bearing 612
On, and the one end of connecting rod 613 is connected with the diaphragm 4.Therefore, eccentric shaft 611 is driven to rotate by motor 601, by inclined
Heart axle 611 pulls connecting rod 613 to move up and down, so as to pull diaphragm 4 to move up and down.
Further, it is additionally provided with the first buffering cavity 901 in first buffer film 911, the second buffering cavity 902
It is additionally provided with the second buffer film 921.Therefore, water passes through when entering in the first buffering cavity 901 and the second buffering cavity 902
First buffer film 911 and the second buffer film 921 further play cushioning effect to water, so as to enter a reduction noise.
Further, the drive mechanism 6 is detachably connected with the diaphragm 4, the cover plate 2 and the support 3 and institute
The pump housing 1 is stated to be detachably connected.Therefore, when diaphragm 4 is damaged, it is conveniently replaceable.
The utility model is not limited to above-mentioned specific embodiment, and one of ordinary skill in the art visualizes from above-mentioned
Hair, without performing creative labour, a variety of conversion made are all fallen within protection domain of the present utility model.
Claims (5)
1. a kind of membrane pump not flowed back, including the pump housing, cover plate and support, the cover plate and support distribution are located at the pump
Body two ends, are provided with diaphragm between the support and the pump housing, one is formed between the diaphragm and the pump housing and seals die cavity,
The support is provided with drive mechanism, and the drive mechanism one end be connected with the diaphragm, the drive mechanism drive described in every
Diaphragm pumps, and the pump housing is provided with inlet valve and flowing water Valve, the inlet valve and the flowing water Valve
Communicated with the sealing die cavity, it is characterised in that provided with buffering cavity inside the cover plate, the buffering inside cavity be provided with every
The buffering cavity is divided into the first buffering cavity and second to buffer cavity, the first buffering cavity and institute by plate, the dividing plate
State inlet valve to communicate, the second buffering cavity is communicated with the flowing water Valve；The water intaking valve include valve body and with it is described
The rubber valve piece of valve body connection；The rubber valve piece is located at the upper end of the valve port of the valve body；The valve port raises up；
The rubber valve piece is rubber body and diaphragm seal；Elastic joint part is provided between the diaphragm seal and the rubber body；
The rubber body is fixedly connected with the valve body, and the diaphragm seal is fitted with the valve port.
2. the membrane pump as claimed in claim 1 not flowed back, it is characterised in that the drive mechanism includes motor and driver
Structure, the motor is on the support, and the transmission mechanism is in the support, the transmission mechanism one end and the motor
Connection, the other end is connected with the diaphragm, and the motor drives the transmission mechanism to drive the diaphragm to move back and forth.
3. the membrane pump as claimed in claim 2 not flowed back, it is characterised in that the transmission mechanism includes eccentric shaft, bearing
And connecting rod, the eccentric shaft is on the motor, and the bearing holder (housing, cover) is on the eccentric shaft, and the connecting rod is sheathed on described
On bearing, and the connecting rod one end is connected with the diaphragm.
4. the membrane pump as claimed in claim 1 or 2 not flowed back, it is characterised in that be additionally provided with the first cushion chamber body
The second buffer film is additionally provided with first buffer film, the second cushion chamber body.
5. the membrane pump as claimed in claim 1 not flowed back, it is characterised in that the drive mechanism and the diaphragm are removable
Connection is unloaded, the cover plate and the support are detachably connected with the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720042016.8U CN206397704U (en) | 2017-01-14 | 2017-01-14 | A kind of membrane pump not flowed back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720042016.8U CN206397704U (en) | 2017-01-14 | 2017-01-14 | A kind of membrane pump not flowed back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397704U true CN206397704U (en) | 2017-08-11 |
Family
ID=59513948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720042016.8U Active CN206397704U (en) | 2017-01-14 | 2017-01-14 | A kind of membrane pump not flowed back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397704U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159515A (en) * | 2018-01-09 | 2019-08-23 | 宁波捷尔天电气有限公司 | Diaphragm pump |
| CN112814877A (en) * | 2019-11-18 | 2021-05-18 | 广东美的生活电器制造有限公司 | Diaphragm pump and beverage brewing machine |
| WO2021208286A1 (en) * | 2020-04-15 | 2021-10-21 | 深圳市飞猫电器有限公司 | Pulse water pump and water flosser |
-
2017
- 2017-01-14 CN CN201720042016.8U patent/CN206397704U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159515A (en) * | 2018-01-09 | 2019-08-23 | 宁波捷尔天电气有限公司 | Diaphragm pump |
| CN112814877A (en) * | 2019-11-18 | 2021-05-18 | 广东美的生活电器制造有限公司 | Diaphragm pump and beverage brewing machine |
| WO2021208286A1 (en) * | 2020-04-15 | 2021-10-21 | 深圳市飞猫电器有限公司 | Pulse water pump and water flosser |
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