CN205779586U - A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure - Google Patents
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure Download PDFInfo
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- CN205779586U CN205779586U CN201620594403.8U CN201620594403U CN205779586U CN 205779586 U CN205779586 U CN 205779586U CN 201620594403 U CN201620594403 U CN 201620594403U CN 205779586 U CN205779586 U CN 205779586U
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Abstract
This utility model relates to a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure.Described second O groove and the first O groove are crisscross arranged, the diameter of the second O groove is 1.05 times of the first O groove diameter, and second size is diaphragm diameter 0.05 times of centrage of distance between center line the first O groove of O groove, first O and being crisscross arranged of the second O form the sealing structure of the S type to diaphragm, and diaphragm can axially and radially move under the first O and the second O effect.This utility model has overturned electromagnetic measurement pump hydraulic end diaphragm and traditional sealing means, original compound diaphragm is substituted with tetrafluoro diaphragm, coordinate portable S type sealing means simultaneously, original static seal is changed into dynamic seal (packing), the service life of diaphragm is reached more than 10 years.
Description
Technical field
This utility model relates to dosing pump field, is specifically related to a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage knot
Structure.
Background technology
Electromagnetic diaphragm formula dosing pump utilizes diaphragm to replace plunger, and diaphragm realizes moving back and forth under drive mechanism effect, complete
Become liquid suction, discharge process.Electromagnetic diaphragm formula dosing pump, due to the buffer action of diaphragm, is structurally truly realized and is counted
Isolation between amount fluid and drive mechanism.Diaphragm on market is crimped by tetrafluoro layer, canvas filler rubber layer and glue and forms, simultaneously
Canvas filler rubber layer wraps up an iron core piece.Such as meter Dun Luo, Paasche phenanthrene reach, the well-known producer of general sieve name top grade all uses this type of diaphragm.
Above-mentioned diaphragm not only complex process, the life-span is typically at about 5000 hours simultaneously.Constitute because diaphragm is composite, when
Electromagnetic diaphragm formula dosing pump is in the case of high-concentration acidic wastewater or alkaline environment altofrequency work continuously, it is easy to fatigue damage,
Degumming is the modal phenomenon of this type of diaphragm.
Tradition electromagnetic dosing pump diaphragm is formed by the splicing of mould glue by rubber layer, tetrafluoro layer, iron core.Due to it
To glued joint with different materials to form, at various acid alkaline environments, rubber layer and the easy aging oxidation degumming of tetrafluoro layer, iron core and
The most as easy as rolling off a log degumming of rubber layer.Tradition Electromagnetic diaphragm metering pump all uses and compresses close by pump head and pump head connection seat edge simultaneously
Envelope mode (face seal), becomes by pump head into an airtight cavity, is the most back and forth made the deformation of diaphragm flexing agitate back and forth by plunger,
Realize inhaling night and the cyclic process of discharge opeing in conjunction with importing and exporting check valve opening and closing.The most such sealing means is easily
Cause the some fatigue rupture of diaphragm flexing.The most traditional diaphragm is one weak link the most fatal of Electromagnetic diaphragm metering pump,
Must change at set intervals, and diaphragm cost is higher.
Utility model content
For problems of the prior art, the purpose of this utility model is to propose a kind of Electromagnetic diaphragm metering pump film
The technical scheme of sheet S type sealing and anti-leakage structure.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: include pump head, pump head
Connecting seat, pump head cavity, connection seat cavity, be used for isolating connection seat cavity and the diaphragm of pump head cavity, pump head is connected with pump head
Seat is fixing to be connected；Described diaphragm is PTFE, and diaphragm arrangement is connected between seat with pump head at pump head, pump head and film contact
Position is provided with the first O groove, and pump head connects seat and is provided with the second O groove, the second O groove and first with film contact position
O groove is crisscross arranged, and the diameter of the second O groove is 1.05 times of the first O groove diameter, and in the second O groove
Size is diaphragm diameter 0.05 times of the centrage of heart linear distance the first O groove；Described second O groove is provided with second
O, the diameter of the second O and the diameter of the second O groove match, and are provided with the first O in the first O groove, the
The diameter of one O and the diameter of the first O groove match；The first described O and the shape that is crisscross arranged of the second O
The S type of diaphragm seals structure in pairs, and diaphragm can axially and radially move under the first O and the second O effect.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: described first O
It is fluororubber O-type ring with the second O.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: described pump head and described
Pump head connects seat and connects by four bolts are fixing.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: described pump head upper end sets
Upper check valve, pump head lower end is had to be provided with lower check valve.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: described upper check valve and
Described lower check valve is non-return valve.
Diaphragm of the present utility model is made up of PTFE compacting, sintering, turning, can be compatible with big multi-chemistry, this reality
With novel by portable S type Seal Design, dosing pump is made to have better seal performance and more robust.
Wherein, the second O groove and the first O groove are crisscross arranged, and the diameter of the second O groove is the first O groove
1.05 times of diameter, and the size of the centrage of distance between center line the first O groove of the second O groove is diaphragm diameter
0.05 times, the first O and being crisscross arranged of the second O form the sealing structure of the S type to diaphragm, and diaphragm is at the first O
Can axially and radially move with under the second O effect.
Traffic requirement, diaphragm diameter is used to be generally 40 ~ 70 millimeters, such as according to Electromagnetic diaphragm metering pump at actual condition
Diaphragm diameter is 40 millimeters, then the first O groove and the second O groove center stagger away from for 2 millimeters.
During use, Electromagnetic diaphragm metering pump the most back and forth makes diaphragm produce axially by plunger, radial motion, diaphragm 4
Motion causes the change of pump head cavity 3 volume, forces check valve and lower check valve alternately to open and close, thus by liquid
Constantly suck from lower check valve, discharge from upper check valve.When diaphragm 4 moves right, due to the first O and the 2nd O type
The circle pull effect to diaphragm, makes the external diameter of diaphragm diminish, moves to center, it is to avoid the concentration of diaphragm upper stress point, so that
Diaphragm has longer service life.
The beneficial effects of the utility model are:
This utility model has overturned electromagnetic measurement pump hydraulic end diaphragm and traditional sealing means, substitutes former with tetrafluoro diaphragm
First compound diaphragm, coordinates portable S type sealing means simultaneously, original static seal is changed into dynamic seal (packing), by diaphragm
Reach service life more than 10 years, almost identical with the electromagnetic dosing pump life-span, the consumable accessory of diaphragm is become conventional part, it is not necessary to enter
Row guarantee is changed, and also solves electromagnetic measurement pump hydraulic end leakage problem simultaneously, significantly reduces using and safeguarding into of user
This, significantly widened Electromagnetic diaphragm metering pump and used field, makes Electromagnetic diaphragm metering pump malicious, inflammable, explosive, volatile etc. at height
The use of occasion becomes a reality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of diaphragm；
Wherein: 1-pump head, 2-pump head connects seat, and 3-pump head cavity, 4-diaphragm, 5-connects seat cavity, 6-the first O
Groove, 7-the second O groove.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is elaborated.
This utility model includes that pump head 1, pump head connect seat 2, pump head cavity 3, connect seat cavity 5, for isolating connection seat
The diaphragm 4 of cavity 5 and pump head cavity 3, pump head 1 is connected the fixing connection of seat 2 with pump head, and diaphragm 4 is PTFE, and diaphragm 4 is arranged
Being connected between seat 2 with pump head at pump head 1, pump head and film contact position are provided with the first O groove 6, and pump head connects seat and diaphragm
Contact position is provided with the second O groove 7, the second O groove and the first O groove and is crisscross arranged, and the diameter of the second O groove is
1.05 times of first O groove diameter, and the size of the centrage of distance between center line the first O groove of the second O groove is
0.05 times of diaphragm diameter；Second O groove is provided with the second O, the diameter of the second O and the second O groove straight
Footpath matches, and is provided with the first O in the first O groove, and the diameter of the first O and the diameter of the first O groove match；
First O and being crisscross arranged of the second O form the sealing structure of the S type to diaphragm, and diaphragm is PTFE, and diaphragm is being inhaled
Will not deform upon when liquid or discharge opeing, when diaphragm 4 moves right, diaphragm is energy under the first O and the second O effect
Enough axially and radially move, the pull effect to diaphragm due to the first O and the second O, make the external diameter of diaphragm diminish,
Move to center, it is to avoid the concentration of diaphragm upper stress point, so that diaphragm has longer service life.
Be provided with the upper check valve connected with pump head cavity 3 in pump head 1 upper end, pump head 1 lower end is provided with and connects with pump head cavity 3
Lower check valve, liquid from lower check valve enter pump head cavity 3, discharge from upper check valve, upper check valve and lower check valve are
Non-return valve.
Pump head 1 and pump head connect seat 2 and are bolted to connection, by 4 bolts through pump head and pump head connect seat with
Support is spirally connected and makes the first O and the deformation of the second O compress diaphragm, owing to the first O and the second O centre-to-centre spacing are wrong
Open, allow for diaphragm and define the S type sealing of uniqueness.
During use, Electromagnetic diaphragm metering pump the most back and forth makes diaphragm 4 produce axially by plunger, radial motion, diaphragm 4
Motion causes the change of pump head cavity 3 volume, forces check valve and lower check valve alternately to open and close, thus by liquid
Constantly suck from lower check valve, discharge from upper check valve.When diaphragm 4 moves right, diaphragm axially and radially moves, by
The pull effect to diaphragm in the first O and the second O, makes the external diameter of diaphragm diminish, moves to center, it is to avoid on diaphragm
The concentration of stress point, so that diaphragm has longer service life.
Claims (5)
1. an Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: include that pump head, pump head connect seat, pump
Head cavity body, connect seat cavity, for isolating connection seat cavity and the diaphragm of pump head cavity, pump head is connected seat with pump head to be fixed and connects
Connect；Described diaphragm is PTFE, and diaphragm arrangement is connected between seat with pump head at pump head, and pump head is provided with film contact position
First O groove, pump head connects seat and is provided with the second O groove, the second O groove and the first O groove with film contact position
Being crisscross arranged, the diameter of the second O groove is 1.05 times of the first O groove diameter, and the distance between center line of the second O groove
Size is diaphragm diameter 0.05 times of the centrage of the first O groove；Described second O groove is provided with the second O, the
The diameter of two O and the diameter of the second O groove match, and are provided with the first O in the first O groove, the first O
The diameter of diameter and the first O groove matches；The formation that is crisscross arranged of the first described O and the second O is to diaphragm
S type seal structure, diaphragm can axially and radially move under the first O and the second O effect.
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure the most according to claim 1, it is characterised in that: institute
State the first O and the second O is fluororubber O-type ring.
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure the most according to claim 1, it is characterised in that: institute
State pump head and described pump head connects seat and connects by four bolts are fixing.
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure the most according to claim 1, it is characterised in that: institute
Stating pump head upper end and be provided with check valve, pump head lower end is provided with lower check valve.
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure the most according to claim 4, it is characterised in that: institute
State check valve and described lower check valve is non-return valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620594403.8U CN205779586U (en) | 2016-06-18 | 2016-06-18 | A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620594403.8U CN205779586U (en) | 2016-06-18 | 2016-06-18 | A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure |
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| Publication Number | Publication Date |
|---|---|
| CN205779586U true CN205779586U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620594403.8U Active CN205779586U (en) | 2016-06-18 | 2016-06-18 | A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure |
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| CN (1) | CN205779586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927515A (en) * | 2016-06-18 | 2016-09-07 | 浙江爱力浦科技股份有限公司 | S-type sealing-up and leak-proof structure for diaphragm of electromagnetic diaphragm metering pump |
-
2016
- 2016-06-18 CN CN201620594403.8U patent/CN205779586U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927515A (en) * | 2016-06-18 | 2016-09-07 | 浙江爱力浦科技股份有限公司 | S-type sealing-up and leak-proof structure for diaphragm of electromagnetic diaphragm metering pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |