CN210372137U - Multi-channel flow control valve - Google Patents
Multi-channel flow control valve Download PDFInfo
- Publication number
- CN210372137U CN210372137U CN201921334547.XU CN201921334547U CN210372137U CN 210372137 U CN210372137 U CN 210372137U CN 201921334547 U CN201921334547 U CN 201921334547U CN 210372137 U CN210372137 U CN 210372137U
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- flow control
- rubber diaphragm
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- 229920001971 elastomer Polymers 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 230000006698 induction Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 239000002585 base Substances 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 230000010354 integration Effects 0.000 abstract description 2
- 239000000806 elastomer Substances 0.000 abstract 1
- 239000000306 component Substances 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Sliding Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Multiple-Way Valves (AREA)
Abstract
The utility model discloses a multichannel flow control valve, this multichannel flow control valve include clamp plate, sealing washer, valve head, rubber diaphragm, bistrique, conversion head, tablet, shaft coupling, elastomeric element, backing plate, motor, slide bearing, code wheel, axle bush, valve body. The utility model discloses use bistrique and conversion head as the core to the elastomer characteristic of rubber diaphragm is supplementary, and miniaturized integration when realizing multichannel flow control has stand wear and tear, longe-lived, and operating pressure is big characteristics, and is strong to the suitability of the complicated use scene of various water quality equipment.
Description
Technical Field
The utility model belongs to the water quality analysis field, concretely relates to multichannel flow control valve.
Background
The multi-channel flow control valve is a key component in the water quality analyzer, and the extraction and the emptying of water samples and reagents of the analyzer are realized by the flow control valve. At present, flow control valves used by most domestic manufacturers of continuous automatic on-line water quality monitoring analyzers are imported products. The flow control valve in the water quality analyzer has the functions that the analyzer can respectively extract different reagents or water samples through the valve and discharge analyzed waste liquid and cleaning wastewater; because the chemical stability is excellent, the use is safe and reliable, the performance is stable, the multi-channel switching can be realized during the liquid extraction, the liquid extraction control is accurate, and the liquids have no mutual interference, so that the method is applied by a plurality of manufacturers. Besides being applied to the field of water quality analysis, the multi-channel flow control valve can also be applied to liquid mass spectrometry and liquid chromatographs and is a core component in various related devices.
At present, the multichannel flow control valve on the market, with the utility model discloses the most similar realization scheme has following two kinds:
a multi-channel valve (see figure 1) for realizing multi-channel switching by adopting a rotor with a diversion trench to rotate together with a stator with a central public port and circumferentially distributed peripheral holes, and the valve has the defects that:
1) the contact surface of the rotor and the stator is sealed, and the two surfaces are rigid surfaces, so that the contact area is large, and the sealing difficulty is high; the requirement on the processing precision of parts is extremely high for realizing the sealing isolation between different opening positions.
2) The contact surface of the stator and the rotor is continuously worn in the rotation process of the rotor, the requirement on the wear resistance of parts is extremely high, and due to the large contact surface, liquid channeling and air leakage are easily caused by uneven wear, and the service life is short;
3) the method is difficult to be applied to an application scene that solid particles exist in a water sample, the hard solid particles are easy to damage a sealing surface of a stator and a rotor to cause air leakage, and the adaptability under severe working conditions is poor.
The other is that the central public port on the valve head controls the peripheral 10 ports of the communication through the on-off circuit of the electromagnetic valve of each port (see the attached figure 2), the valve is a parallel electromagnetic valve, so the size is seriously large, the structure is not compact, the connection mode of each port is threaded connection, the efficiency of the external connection mode of the interface is low, and the operation difficulty is large. 2) A plurality of diaphragm type electromagnetic valves are integrated on a manifold tube substrate, so that multi-channel valve port switching is realized.
SUMMERY OF THE UTILITY MODEL
The utility model provides a multichannel flow control valve, this valve use safe and reliable, and the multichannel switches when extracting different reagent or water sample can be stabilized, does not have mutual interference between each liquid.
The purpose of the utility model is realized through the following technical scheme:
a multi-channel flow control valve is characterized by comprising a pressure plate, a sealing ring, a valve head, a rubber diaphragm, a grinding head, a conversion head, an induction plate, a coupler, an elastic part, a backing plate, a motor, a thrust bearing, a coded disc, a bearing bush and a valve body;
from left to right, the pressure plate is provided with a central hole and a plurality of valve port holes which are uniformly distributed along the circumferential direction, the valve head and the pressure plate are arranged oppositely, through holes on the valve head are arranged corresponding to the central hole and the valve port holes on the pressure plate one by one, O-shaped sealing rings are arranged at the positions of the through holes on the valve head corresponding to the central hole and the valve port holes on the pressure plate, the right end of the valve head is fixed on the valve body, a rubber membrane, a grinding head and a conversion head are sequentially arranged at the right end of the valve head inside the valve body, the through holes on the valve head are sequentially arranged corresponding to the through holes on the rubber membrane and the grinding head one by one, a linear guide groove is arranged on the binding surface of the conversion head and the grinding head, the linear guide groove extends outwards along the radial direction from the central hole, the length of the linear guide groove is the same as the distribution radius of the peripheral holes on the grinding head, namely, the grinding head, the rubber diaphragm and the valve head hole site are arranged in one-to-one correspondence; the valve head, the rubber diaphragm, the grinding head and the holes or grooves on the conversion head form a liquid passing channel;
from right to left, the motor is fixed on the backing plate, the motor shaft penetrates through a hole in the backing plate and is connected with the coupler, an elastic component and a thrust bearing are sequentially arranged between the coupler and the backing plate, and the elastic component and the thrust bearing are sleeved on the coupler; the left end of the coupler and the right end of the conversion head are fixedly arranged, a bearing bush is arranged in the circumferential direction of the joint, the coded disc is sleeved in the circumferential direction of the coupler, the induction plate is fixed at a set position of the valve body, the inductor on the induction plate is arranged opposite to the opening on the coded disc, and the position of the linear guide groove on the conversion head is identified through the cooperative feedback of the inductor on the induction plate and the coded disc, so that the center hole and the designated peripheral hole of the conduction valve are controlled; the thrust bearing and the coupling compress the elastic part to generate thrust, and the conversion head, the grinding head, the rubber diaphragm and the valve head are compressed to enable the binding surfaces between every two parts to be compressed and sealed.
Furthermore, the grinding head and the conversion head are made of special ceramic materials.
Furthermore, the O-shaped sealing ring, the valve head, the rubber diaphragm, the grinding head and the conversion head are made of acid and alkali corrosion resistant materials.
Furthermore, the through hole on the valve head is divided into two sections, wherein the central hole is divided into two sections of straight section holes, and the circumferential valve port holes are divided into straight section holes and inclined section holes.
Furthermore, the elastic component is a disc spring.
Furthermore, the valve also comprises a sliding bearing, and the sliding bearing is arranged between the thrust bearing and a shaft shoulder of the motor to further realize the limiting.
The utility model has the advantages as follows:
(1) the utility model ensures the efficiency and precision of the conduction control of each channel of the multi-channel valve through the accurate relative arrangement of the code disc and the induction plate, the external pipeline is connected in a direct-inserting and direct-pulling mode of the O-shaped sealing ring, the difficulty of pipeline connection is reduced, the operation is simple and the reliability is high;
(2) the liquid path conduction control component of the utility model is made of special ceramic material, has high wear resistance and strong chemical corrosion resistance, and can adapt to various complex use environments; the service life is long;
(3) the utility model discloses overall structure integrated level is high, and is small.
(4) The utility model discloses external connected mode is for directly inserting directly pulling out, and connecting line convenient and fast operates the degree of difficulty low, and the reliability is high.
Drawings
FIG. 1 is a schematic diagram of a prior art multi-channel flow control valve;
FIG. 2 is a schematic diagram of another multi-channel flow control valve of the prior art;
fig. 3 is a perspective view of the multi-channel flow control valve of the present invention;
fig. 4 is an exploded view of the multi-channel flow control valve of the present invention;
fig. 5 is a left side view of the multi-channel flow control valve of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a schematic diagram of the working principle of a code wheel;
the device comprises a stator 1, a stator 2, a rotor 3, a stator multichannel port, a rotor 4, a stator common port 5, an electromagnetic valve 6, a rubber diaphragm 7, a branch valve head 8, a pressure plate 9, a seal ring 10-O-shaped, a valve head 11, a rubber diaphragm 12, a grinding head 13, a conversion head 14, a sensing plate 15, a coupler 16, a disc spring 17, a backing plate 18, a motor 19, a sliding bearing 20, a thrust bearing 21, a code disc 22, a bearing bush 23 and a valve body 24.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the present invention will become more apparent, and it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
As shown in fig. 3-7, the multi-channel flow control valve of the present invention comprises a pressure plate 9, an O-ring 10, a valve head 11, a rubber diaphragm 12, a grinding head 13, a conversion head 14, an induction plate 15, a coupling 16, a disc spring 17, a backing plate 18, a motor 19, a sliding bearing 20, a thrust bearing 21, a code disc 22, a bearing bush 23, and a valve body 24;
turn right from a left side, be provided with a centre bore and a plurality of valve port position holes along circumference evenly distributed on the clamp plate 9, valve head 11 sets up with clamp plate 9 relatively, through-hole on the valve head 11 and the centre bore on the clamp plate 9, valve port position hole one-to-one set up, and through-hole on the valve head 11 and the clamp plate 9 go up the centre bore, the position that valve port position hole corresponds sets up O type sealing washer 10, outer pipeline passes the centre bore on the clamp plate 9, valve port position hole, through O type sealing washer and valve head 11 cut straightly and draw, sealing performance has been improved, the degree of difficulty of tube coupling has been reduced, easy operation reliability is high.
The through hole on the valve head 11 is divided into two sections, wherein the central hole is divided into two sections of straight section holes, the circumferential valve port hole is divided into a straight section hole and an inclined section hole, the right end of the valve head 11 is fixed on the valve body 24, the right end of the valve head 11 is sequentially provided with a rubber diaphragm 12, a grinding head 13 and a conversion head 14, the through holes of the valve head 11 are sequentially arranged in a one-to-one correspondence with the through holes on the rubber diaphragm 12 and the grinding head 13, the binding surface of the conversion head 14 and the grinding head 13 is provided with a linear guide groove, the linear guide groove extends outwards along the radial direction from the central hole, the length of the linear guide groove is the same as the distribution radius of the peripheral holes on the grinding head 13, namely, the linear guide groove correspondingly conducts the central hole of the grinding head 13 and a certain specified peripheral hole, and the; the valve head 11, the rubber diaphragm 12, the grinding head 13 and the holes or grooves on the conversion head 14 form a liquid passing channel.
From right to left, the motor 19 is fixed on the backing plate 18, the motor shaft passes through a hole in the backing plate 18 and is connected with the coupler 16, the axial direction of the coupler 16 is provided with a shaft shoulder, the backing plate 18 is also provided with a step, a disc spring 17, a thrust bearing 21 and a sliding bearing 20 are sequentially arranged between the shaft shoulder of the coupler 16 and the step of the backing plate 18, and the disc spring 17, the thrust bearing 21 and the sliding bearing 20 are all sleeved on the coupler 16; the left end of the coupler 16 and the right end of the conversion head 14 are fixedly arranged, a bearing bush 23 is arranged in the circumferential direction of the connection position, the coded disc 22 is sleeved in the circumferential direction of the coupler 16, the induction plate 15 is fixed on a set position of the valve body 24, an inductor on the induction plate 15 is arranged opposite to an opening on the coded disc 22, and the position of a linear guide groove on the conversion head 14 is identified through the cooperation feedback of the inductor on the induction plate 15 and the coded disc 22, so that the central hole and the designated peripheral hole of the conduction valve are controlled. The thrust bearing 21 and the coupling 16 compress the disc spring 17 to generate thrust, and press the conversion head 14, the grinding head 13, the rubber diaphragm 12 and the valve head 11, so that the joint surfaces between the conversion head 14 and the grinding head 13, between the grinding head 13 and the rubber flat diaphragm 12, and between the rubber diaphragm 12 and the valve head 11 are pressed and sealed.
The output shaft of the motor 19 rotates to drive the coupler 16 to rotate correspondingly, and the coupler 16 rotates to drive the coded disc 22 and the conversion head 14 to rotate correspondingly, so that the central hole and different peripheral holes of the conducting pressure plate 9 are switched.
Preferably, the grinding head 13 and the conversion head 14 are made of special ceramic materials, and have wear-resistant characteristics, good sealing performance and high sealing pressure.
Preferably, the O-shaped sealing ring 10, the valve head 11, the rubber diaphragm 12, the grinding head 13 and the conversion head 14 are made of acid-base corrosion-resistant materials.
The utility model takes the special ceramic valve core with wear resistance, acid and alkali corrosion resistance as the core, and realizes the miniaturization integration of multi-channel flow control; the efficiency and the precision of each passageway conduction control of code wheel and the accurate relative setting of tablet guarantee multichannel valve are connected through the mode that O type sealing washer is directly inserted and is directly pulled out to outer pipeline, have reduced the degree of difficulty of tube coupling, easy operation reliability is high.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention and is not intended to limit the invention, and although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof. All modifications and equivalents made within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A multi-channel flow control valve is characterized by comprising a pressure plate (9), an O-shaped sealing ring (10), a valve head (11), a rubber diaphragm (12), a grinding head (13), a conversion head (14), an induction plate (15), a coupler (16), an elastic component (17), a backing plate (18), a motor (19), a thrust bearing (21), a coded disc (22), a bearing bush (23) and a valve body (24);
from left to right, a central hole and a plurality of valve port holes which are uniformly distributed along the circumferential direction are arranged on the pressing plate (9), the valve head (11) is arranged opposite to the pressing plate (9), through holes on the valve head (11) are arranged corresponding to the central hole and the valve port holes on the pressing plate (9) one by one, O-shaped sealing rings (10) are arranged at the positions of the through holes on the valve head (11) corresponding to the central hole and the valve port holes on the pressing plate (9), the right end of the valve head (11) is fixed on the valve body (24), a rubber diaphragm (12), a grinding head (13) and a conversion head (14) are sequentially arranged at the right end of the valve head (11) inside the valve body (24), the through holes on the valve head (11) are sequentially arranged corresponding to the through holes on the rubber diaphragm (12) and the grinding head (13) one by one, and a linear guide groove is arranged on the binding surface of the conversion head (14) and, the linear guide groove extends outwards along the radial direction from the central hole, the length of the linear guide groove is the same as the distribution radius of the peripheral holes on the grinding head (13), namely the linear guide groove correspondingly conducts the central hole of the grinding head (13) and a certain specified peripheral hole, and the grinding head (13), the rubber diaphragm (12) and the hole site of the valve head (11) are arranged in a one-to-one correspondence manner; the valve head (11), the rubber diaphragm (12), the grinding head (13) and holes or grooves on the conversion head (14) form a liquid passing channel;
from right to left, a motor (19) is fixed on a base plate (18), a motor shaft penetrates through a hole in the base plate (18) and is connected with a coupler (16), an elastic component (17) and a thrust bearing (21) are sequentially arranged between the coupler (16) and the base plate (18), and the elastic component and the thrust bearing are sleeved on the coupler (16); the left end of the coupler (16) and the right end of the conversion head (14) are fixedly arranged, a bearing bush (23) is arranged in the circumferential direction of a connecting part, the coded disc (22) is sleeved in the circumferential direction of the coupler (16), the induction plate (15) is fixed at a set position of the valve body (24), an inductor on the induction plate (15) is arranged opposite to an opening on the coded disc (22), and the position of a linear guide groove on the conversion head (14) is identified through the cooperation feedback of the inductor on the induction plate (15) and the coded disc (22), so that the central hole and the designated peripheral hole of the conduction valve are controlled; the thrust bearing (21) and the coupling (16) compress the elastic part (17) to generate thrust, and the conversion head (14), the grinding head (13), the rubber diaphragm (12) and the valve head (11) are pressed tightly, so that the joint surfaces between every two parts are pressed tightly and sealed.
2. The multi-channel flow control valve according to claim 1, characterized in that the grinding head (13) and the conversion head (14) are made of a special ceramic material.
3. The multi-channel flow control valve according to claim 1, wherein the O-ring (10), the valve head (11), the rubber diaphragm (12), the grinding head (13) and the switching head (14) are made of acid and alkali corrosion resistant materials.
4. The multi-channel flow control valve according to claim 1, wherein the through hole of the valve head (11) is divided into two sections, wherein the central hole is divided into two sections of straight-through section holes, and the circumferential valve port holes are divided into straight-through section holes and inclined section holes.
5. The multi-channel flow control valve of claim 1, wherein the resilient member (17) is a disc spring.
6. The multi-channel flow control valve of claim 1, further comprising a plain bearing (20), the plain bearing (20) being disposed between the thrust bearing (21) and a stepped bore of the backing plate (18) to further provide a limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921334547.XU CN210372137U (en) | 2019-08-16 | 2019-08-16 | Multi-channel flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921334547.XU CN210372137U (en) | 2019-08-16 | 2019-08-16 | Multi-channel flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210372137U true CN210372137U (en) | 2020-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921334547.XU Withdrawn - After Issue CN210372137U (en) | 2019-08-16 | 2019-08-16 | Multi-channel flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210372137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410534A (en) * | 2019-08-16 | 2019-11-05 | 凯铭科技(杭州)有限公司 | A kind of multichannel flow control valve |
-
2019
- 2019-08-16 CN CN201921334547.XU patent/CN210372137U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410534A (en) * | 2019-08-16 | 2019-11-05 | 凯铭科技(杭州)有限公司 | A kind of multichannel flow control valve |
| CN110410534B (en) * | 2019-08-16 | 2024-02-20 | 凯铭科技(杭州)有限公司 | Multi-channel flow control valve |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200421 Effective date of abandoning: 20240220 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200421 Effective date of abandoning: 20240220 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |