CN208750061U - A kind of multichannel flow control valve - Google Patents
A kind of multichannel flow control valve Download PDFInfo
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- CN208750061U CN208750061U CN201821176578.2U CN201821176578U CN208750061U CN 208750061 U CN208750061 U CN 208750061U CN 201821176578 U CN201821176578 U CN 201821176578U CN 208750061 U CN208750061 U CN 208750061U
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- diaphragm
- pull rod
- iron core
- dynamic iron
- seat
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Abstract
The utility model discloses a kind of multichannel flow control valve, which includes pressing plate, valve head, diaphragm seat, diaphragm, diaphragm pull rod, pull-rod spring, main shaft, fixed core, optoelectronic induction plate, motor, code-disc, coil, dynamic iron core spring, dynamic iron core, pull rod plectrum, draw-bar seat.The utility model is using high chemical resistance rubber diaphragm as core, and miniaturization is integrated while realizing multichannel flow control；Multiple diaphragms share the electromagnet of one big pulling force, and miniaturization while ensure that the efficiency and precision of diaphragm switch movement, and external connection mode is direct inserting and drawing, and connecting line is convenient and efficient, and operation difficulty is low, high reliablity.
Description
Technical field
The utility model belongs to water analysis field, and in particular to a kind of multichannel flow control valve.
Background technique
Multichannel flow control valve is a critical component in Water Test Kits, the extraction of the water sample, reagent of analyzer and row
Sky is required to be realized by flow control valve.At present used in the producer of the continuous automatic on-line monitoring analyzer of most domestic water quality
Flow control valve is imported product.Function of the flow control valve in Water Test Kits is instrument can be extracted respectively by the valve it is different
Waste liquid and cleaning waste water after reagent or water sample, and discharge analysis；Because its chemical stability is splendid, safe and reliable, property
Can stablize, when extracting liquid can multichannel switching, liquid-taken amount control precisely, without interfering with each other between each liquid, and by many factories
Family is applied.Other than being applied to water analysis field, multichannel flow control valve can be also used for liquid chromatography mass spectrometric, liquid chromatograph
In, it is the core component in all kinds of relevant devices.
Currently, in multichannel flow control valve in the market, it is a kind of for using the rotor with diversion trench with center common port with
The shortcomings that stator of circle distribution holes around, which cooperates, to be rotated, the multiple valve (referring to attached drawing 1) of realization multichannel switching, this valve
It is:
1) rotor stator contact surface seals, and two faces are all rigid face, and contact area is big, and sealing difficulty is high；To realize not
Part processing precision is required with the seal isolation between mouth position high.
2) stator and rotor interface can constantly be worn in rotor rotation process, high to the requirement of part wearability, and
Since contact surface is big, it is easy to produce uneven wear and leads to alter liquid and gas leakage, working life is short；
3) application scenarios for having solid particle in water sample are difficult to be applicable in, hard solid particle is easy to damage stator
Rotor seal face leads to gas leakage, bad adaptability under bad working environments.
Another kind is that the center common port on valve head is controlled around connection by the on-off road of the solenoid valve of each port
10 mouth positions (referring to attached drawing 2), for such valve due to being solenoid valve in parallel, size is seriously bigger than normal, and structure is not compact, and each
The connection type of mouth position is to be threadedly coupled, interface external connection mode low efficiency, and operation difficulty is big.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of multichannel flow control valve, which is used
Get up safe and reliable, can steadily when extracting different reagents or water sample, multichannel switches, without mutually dry between each liquid
It disturbs.
The purpose of this utility model is realized by following technical solution:
A kind of multichannel flow control valve, which is characterized in that the multichannel flow control valve include pressing plate, valve head, diaphragm seat, diaphragm,
Diaphragm pull rod, pull-rod spring, main shaft, fixed core, optoelectronic induction plate, motor, code-disc, coil, dynamic iron core spring, dynamic iron core, drawing
Bar plectrum, draw-bar seat；
From left to right, multiple valve port positions hole that a centre bore is provided on the pressing plate and is uniformly distributed circumferentially,
The valve head is oppositely arranged with the pressing plate, the through-hole on the valve head and the centre bore, valve port position Kong Yiyi
Be correspondingly arranged, the diaphragm seat is oppositely arranged with the valve head, be provided on the diaphragm seat on the valve head
The diaphragm accessibke porosity that is arranged in a one-to-one correspondence of through-hole, be provided with G type on the diaphragm seat face opposite with the valve head
Centre bore guide groove, described centrally located one end of G type centre bore guide groove are connected to the centre bore of the pressing plate and valve head, institute
The G type centre bore guide groove stated is circumferentially arranged multiple diaphragm inner via holes, the diaphragm inner via hole with it is corresponding described
Diaphragm accessibke porosity be located at same radial direction, the other end of the diaphragm seat has been uniformly arranged in the circumferential direction outside each pair of diaphragm of covering
The diaphragm of through-hole and diaphragm inner via hole, and quantity is identical as the quantity of diaphragm accessibke porosity, diaphragm inner via hole；
The draw-bar seat is oppositely arranged with the diaphragm seat, and the diaphragm clamps the drawing therebetween
It is provided on pole socket and the same number of diaphragm pull rod of diaphragm, one end steady brace spring of the diaphragm pull rod, the other end
It is fixedly connected with the diaphragm；
It turns left from the right side, the motor is fixed on the shell of valve, and the motor output shaft is fixedly connected with a main shaft, institute
In the hole of the other end insertion for the main shaft the stated draw-bar seat, the code-disc is set on the main shaft, the light
Electric induction plate is fixed on the motor；The main shaft periphery is arranged dynamic iron core, and the two is circumferentially fixed, axially slidable,
Dynamic iron core spring is provided between the main shaft and the dynamic iron core, coil is arranged in the dynamic iron core periphery, described
One end of dynamic iron core towards the draw-bar seat is fixedly connected with the pull rod plectrum, and the pull rod plectrum can stir the film
The pull-rod spring that piece pull rod drives compression described；
The motor drives the main shaft rotation, and the main shaft drives the dynamic iron core, the rotation of pull rod plectrum,
When pull rod plectrum rotates to specified valve port position, the coil is powered, and the dynamic iron core compression dynamic iron core spring is axial
It is mobile, drive the pull rod plectrum to stir the diaphragm pull rod compression pull-rod spring, while pulling diaphragm axial
It is mobile so that diaphragm accessibke porosity, diaphragm inner via hole, G type centre bore guide groove, valve head central hole, formed between pressing plate centre bore it is logical
Road.
Further, pass through O-ring seal between the pressing plate and the opposite hole of the valve head to seal.
Further, one end that the main shaft is connect with the dynamic iron core has a pair of parallel plane along axial direction,
The dynamic iron core is realized circumferentially fixed, axially slidable with parallel plane cooperation.
Further, the pull rod plectrum is leaf spring.
Further, the O-ring seals, valve head, diaphragm seat, diaphragm select the material of acid-alkali-corrosive-resisting.
The beneficial effects of the utility model are as follows:
1) the fluid path on-off control unit of the utility model is rubber material, and when work does not have rigid abrasion, and the service life is long；
2) the fluid path on-off control unit of the utility model is rubber material, this is as elastomer, when there is small in liquid
When grain object, sealing effect, high reliablity are not influenced；
3) the utility model Electromagnetic Control part is Integrated design, and single electromagnet controls multiple channel capacities, subtracts significantly
Small equipment volume.
4) rigid fricting movement is not present in the utility model seal member, is not in the failures such as stuck.
5) the utility model external connection mode is direct inserting and drawing, and connecting line is convenient and efficient, and operation difficulty is low, reliability
It is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one of multichannel flow control valve of background technique, wherein figure (a) is the master of the valve
View, figure (b) are the left view of the valve；
Fig. 2 is the structural schematic diagram of another multichannel flow control valve of background technique, wherein figure (a) is the main view of the valve
Figure, figure (b) are the A-A cross-sectional view of the valve；
Fig. 3 is the cross-sectional view of the multichannel flow control valve of the utility model；
Fig. 4 is the A-A of multichannel flow control valve to section view；
Fig. 5 is diaphragm working principle diagram；
Fig. 6 is pull rod plectrum working principle diagram；
Fig. 7 is code-disc working principle diagram；
Wherein, 1- stator, 2- rotor, 3- stator multi-pass road junction, 4- rotor guide slot, 5- stator common port, 6- solenoid valve,
7- rubber diaphragm, the branch road 8- valve head, 9- pressing plate, 10-O shape sealing ring, 11- valve head, 12- diaphragm seat, 13- diaphragm, 14- diaphragm are drawn
Bar, 15- pull-rod spring, 16- main shaft, 17- fixed core, 18- tablet, 19- motor housing, 20- motor cabinet, 21- motor, 21-
1- motor output shaft, 22- code-disc, 23- coil, 24- dynamic iron core spring, 25- dynamic iron core, 26- pull rod plectrum, 27- draw-bar seat.
Specific embodiment
The utility model is described in detail below according to attached drawing and preferred embodiment, the purpose of this utility model and effect will become
It must be more clearly understood that, below in conjunction with drawings and examples, the present invention will be further described in detail.It should be appreciated that herein
Described specific embodiment is only used to explain the utility model, is not used to limit the utility model.
As shown in fig. 3 to 7, a kind of multichannel flow control valve of the utility model, the multichannel flow control valve include pressing plate 9, O shape
Sealing ring 10, valve head 11, diaphragm seat 12, diaphragm 13, diaphragm pull rod 14, pull-rod spring 15, main shaft 16, fixed core 17, light inductance
Answer plate 18, shell 19, motor cabinet 20, motor 21, code-disc 22, coil 23, dynamic iron core spring 24, dynamic iron core 25, pull rod plectrum
26, draw-bar seat 27；
From left to right, ten valve port positions hole, 10 channel that a centre bore is provided on pressing plate 9 and is uniformly distributed circumferentially
In the case of, centre bore is controlled to be connected with ten holes of periphery and is connected with cutting by diaphragm seat 12 with diaphragm 13, realizes multichannel
Switched conductive.
Valve head 11 is oppositely arranged with pressing plate 9, and the through-hole on valve head 11 is arranged in a one-to-one correspondence with centre bore, valve port position hole, pressure
It is sealed between plate 9 and the opposite hole of valve head 11 by O-ring seal, diaphragm seat 12 is oppositely arranged with valve head 11, on diaphragm seat 12
It is provided with the diaphragm accessibke porosity being arranged in a one-to-one correspondence with the through-hole on valve head 11, is set on the face opposite with valve head 11 of diaphragm seat 12
It is equipped with G type centre bore guide groove, the centrally located one end of G type centre bore guide groove is connected to the centre bore of pressing plate 9 and valve head 11, G type
Centre bore guide groove is circumferentially arranged multiple diaphragm inner via holes, and each diaphragm inner via hole is located at same with corresponding diaphragm accessibke porosity
Radial, the other end of diaphragm seat 12 is uniformly arranged in the circumferential direction the diaphragm for covering each pair of diaphragm accessibke porosity and diaphragm inner via hole
13, and quantity is identical as the quantity of diaphragm accessibke porosity, diaphragm inner via hole；
Draw-bar seat 27 is oppositely arranged with diaphragm seat 12, and diaphragm 13 clamps therebetween, is provided on draw-bar seat 27 and film
The same number of diaphragm pull rod 14 of piece 13, one end steady brace spring 15 of diaphragm pull rod 14, the other end and diaphragm 13 are fixed to be connected
It connects；
It turns left from the right side, motor 21 is fixed on the shell of valve, and motor is fixed fixed with motor housing 19 by motor cabinet 20,
21 output shaft 21-1 of motor is fixedly connected with a main shaft 16, and the other end of main shaft 16 is inserted into the hole of draw-bar seat 27, and code-disc 22 is arranged
On main shaft 16, optoelectronic induction plate 18 is fixed on motor housing 19；16 periphery of main shaft is arranged dynamic iron core 25, main shaft 16 and dynamic iron
One end that core 25 connects have it is a pair of along axial parallel plane, dynamic iron core 25 and parallel plane cooperation realize it is circumferentially fixed,
It is axially slidable, dynamic iron core spring 24 is provided between main shaft 16 and dynamic iron core 25, coil 23 is arranged in 25 periphery of dynamic iron core, moves iron
One end of core 25 towards draw-bar seat 27 is fixedly connected with pull rod plectrum 26, and pull rod plectrum 26 can stir diaphragm pull rod 14 and compression is driven to draw
Bar spring 15.
This multiple valve external interface is all distributed on the end face of pressing plate 9, and the pipe docking mode of external connection is logical
It crosses O type circle sealing ring 10 and realizes that straight cutting is dialed directly, piping connection is convenient and efficient.
This multiple valve passes through the G shape centre bore guide groove of diaphragm seat 12, and ten holes and center of periphery are realized from structure
Hole is closing the distance, and diaphragm 13 is facilitated to work.
Diaphragm 13 is normally off under the spring thrust effect of diaphragm pull rod 14 and pull-rod spring 15, ten valve port positions with
Centre bore is not turned on, and diaphragm pull rod 14 compresses pull-rod spring 15 under the action of pull rod plectrum 26, opens corresponding diaphragm 13,
Corresponding valve port bit port hole is connected with centre bore at this time.A valve port position can only be connected in pull rod plectrum 26 every time.
Motor 21 drives main shaft 16 to rotate, and main shaft 16 drives dynamic iron core 25, pull rod plectrum 26 to rotate, in the auxiliary of code-disc 22
Relative position between the diaphragm pull rod 14 corresponding from different valve port positions of lower 26 position of positioning tie bar plectrum, code-disc 22 with
Main shaft 16 and dynamic iron core 25 and the unique corresponding position of pull rod plectrum 26 are installed, and relative position is constant.When code-disc 22 confirms pull rod
When plectrum 26 is parked in specified valve port position, coil 23 is powered, and dynamic iron core 25 is compressed dynamic iron core spring 24 and moved axially, and drives pull rod
Plectrum 26 stirs diaphragm pull rod 14 and compresses pull-rod spring 15, while pulling diaphragm 13 axial mobile to motor drive direction, so that diaphragm
Accessibke porosity, G type centre bore guide groove, 11 centre bore of valve head, forms access between 9 centre bore of pressing plate at diaphragm inner via hole.
When coil 23 powers off, dynamic iron core 25 drives pull rod plectrum 26 to return to original position, and the stretching, extension of pull-rod spring 15 pushes diaphragm
Pull rod 14 withstands diaphragm 13 and seals up valve centre bore, disconnects the fluid path of access opening corresponding to the diaphragm and centre bore.
In the multichannel flow control valve of the utility model, diaphragm seat 12 is realized by G shape centre bore guide groove by valve centre bore
Diaphragm hole of the water conservancy diversion to periphery circumferentially, the diaphragm hole for blocking each diaphragm 13 are directly connected with valve centre bore.
Valve head 11 is coupled with diaphragm seat 12 for face, between the G shape centre bore guide groove on diaphragm seat 12 and valve opening position mouthful
Apart from small, by the mating surface precision of both technology controlling and process, compression fit is realized between each mouth position hole and G shape centre bore guide groove
Sealing.
The position that pull rod plectrum 26 stops photoelectric sensor plate 18 with the code-disc 22 being fixed on main shaft 16, passes through light
Electric signal is accurately positioned the correspondence diaphragm opened needed for control.
Preferably, pull rod plectrum 26 is leaf spring, and elastic recoverable force ability is strong in long-time service；
Preferably, O-ring seals 10, valve head 11, diaphragm seat 12, diaphragm 13 select the material of acid-alkali-corrosive-resisting, make it
With high chemical stability, can still be worked normally in the adverse circumstances such as strong acid and strong base.
The utility model is using high chemical resistance rubber diaphragm as core, miniaturization collection while realizing multichannel flow control
At；Multiple diaphragms share the electromagnet of one big pulling force, miniaturization while ensure that the efficiency of diaphragm switch movement with it is accurate
Degree.
It will appreciated by the skilled person that the foregoing is merely the preferred embodiments of utility model, and do not have to
In limitation utility model, although utility model is described in detail referring to previous examples, for those skilled in the art
Member for, can still modify to the technical solution of aforementioned each case history, or to part of technical characteristic into
Row equivalent replacement.With within principle, modification, equivalent replacement for being made etc. should be included in practical new all spirit in utility model
Within the protection scope of type.
Claims (5)
1. a kind of multichannel flow control valve, which is characterized in that the multichannel flow control valve includes pressing plate (9), valve head (11), diaphragm seat
(12), diaphragm (13), diaphragm pull rod (14), pull-rod spring (15), main shaft (16), fixed core (17), optoelectronic induction plate (18), electricity
Machine (21), code-disc (22), coil (23), dynamic iron core spring (24), dynamic iron core (25), pull rod plectrum (26), draw-bar seat (27)；
From left to right, the multiple valve port positions hole for a centre bore being provided on the pressing plate (9) and being uniformly distributed circumferentially, institute
The valve head (11) stated is oppositely arranged with the pressing plate (9), the through-hole on the valve head (11) and the centre bore, valve port
Position hole is arranged in a one-to-one correspondence, and the diaphragm seat (12) is oppositely arranged with the valve head (11), on the diaphragm seat (12)
It is provided with the diaphragm accessibke porosity being arranged in a one-to-one correspondence with the through-hole on the valve head (11), in the diaphragm seat (12) and institute
Be provided with G type centre bore guide groove on the opposite face of the valve head (11) stated, described centrally located one end of type centre bore guide groove G with
The pressing plate (9) is connected to the centre bore of valve head (11), and the G type centre bore guide groove is circumferentially arranged to be had in multiple diaphragms
Through-hole, each diaphragm inner via hole are located at same radial direction, the diaphragm seat with the corresponding diaphragm accessibke porosity
(12) other end is uniformly arranged in the circumferential direction the diaphragm (13) for covering each pair of diaphragm accessibke porosity and diaphragm inner via hole, and quantity
It is identical as the quantity of diaphragm accessibke porosity, diaphragm inner via hole；
The draw-bar seat (27) is oppositely arranged with the diaphragm seat (12), and the diaphragm (13) clamps therebetween,
Be provided on the draw-bar seat (27) with diaphragm (13) the same number of diaphragm pull rod (14), the diaphragm pull rod (14)
One end steady brace spring (15), the other end are fixedly connected with the diaphragm (13)；
It turns left from the right side, the motor (21) is fixed on the shell of valve, and it is main that the motor (21) output shaft is fixedly connected with one
The other end of axis (16), the main shaft (16) is inserted into the hole of the draw-bar seat (27), and the code-disc (22) is set in
On the main shaft (16), the optoelectronic induction plate (18) is fixed on the motor (21)；The main shaft (16) is outside
It is arranged dynamic iron core (25) week, the two is circumferentially fixed, axially slidable, between the main shaft (16) and the dynamic iron core (25)
It is provided with dynamic iron core spring (24), coil (23) are arranged in the dynamic iron core (25) periphery, and the dynamic iron core (25) is towards institute
The one end for the draw-bar seat (27) stated is fixedly connected with the pull rod plectrum (26), and the pull rod plectrum (26) can stir the film
The pull-rod spring (15) that piece pull rod (14) drives compression described；
The motor (21) drives the main shaft (16) to rotate, the main shaft (16) the drive dynamic iron core (25),
Pull rod plectrum (26) rotation, when pull rod plectrum (26) rotates to specified valve port position, the coil (23) is powered, described
Dynamic iron core (25) compresses dynamic iron core spring (24) axial movement, and the pull rod plectrum (26) is driven to stir the diaphragm pull rod
(14) the compression pull-rod spring (15), while diaphragm (13) being pulled to move axially, so that leading in diaphragm accessibke porosity, diaphragm
Hole, valve head (11) centre bore, forms access between pressing plate (9) centre bore at G type centre bore guide groove.
2. multichannel flow control valve according to claim 1, which is characterized in that the pressing plate (9) and the valve head
(11) it is sealed between opposite hole by O-ring seal.
3. multichannel flow control valve according to claim 1, which is characterized in that the main shaft (16) and the dynamic iron core
(25) one end connected has a pair of along axial parallel plane, and the dynamic iron core (25) realizes week with parallel plane cooperation
To fixation, axially slidable.
4. multichannel flow control valve according to claim 1, which is characterized in that the pull rod plectrum (26) is leaf spring.
5. multichannel flow control valve according to claim 2, which is characterized in that the O-ring seal (10), valve head
(11), diaphragm seat (12), diaphragm (13) select the material of acid-alkali-corrosive-resisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176578.2U CN208750061U (en) | 2018-07-24 | 2018-07-24 | A kind of multichannel flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176578.2U CN208750061U (en) | 2018-07-24 | 2018-07-24 | A kind of multichannel flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208750061U true CN208750061U (en) | 2019-04-16 |
Family
ID=66056081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821176578.2U Active CN208750061U (en) | 2018-07-24 | 2018-07-24 | A kind of multichannel flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208750061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757995A (en) * | 2018-07-24 | 2018-11-06 | 凯铭科技(杭州)有限公司 | A kind of multichannel flow control valve |
-
2018
- 2018-07-24 CN CN201821176578.2U patent/CN208750061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757995A (en) * | 2018-07-24 | 2018-11-06 | 凯铭科技(杭州)有限公司 | A kind of multichannel flow control valve |
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