CN106884782A - Peristaltic pump - Google Patents
Peristaltic pump Download PDFInfo
- Publication number
- CN106884782A CN106884782A CN201710220216.2A CN201710220216A CN106884782A CN 106884782 A CN106884782 A CN 106884782A CN 201710220216 A CN201710220216 A CN 201710220216A CN 106884782 A CN106884782 A CN 106884782A
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- China
- Prior art keywords
- pump case
- flexible pipe
- rotation dish
- compression roller
- pump
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention provides a kind of peristaltic pump, can be used to convey various liquid, fluid, including the medical reagent with burn into oxygen sensitivity characteristic, chemical reagent, unclassified stores and various food etc..The peristaltic pump that the present invention is provided includes pump case and the pump housing, and the pump housing includes rotation dish and compression roller, and rotation dish is connected with drive shaft and is rotated with around central shaft, and drives compression roller to rotate, so as to the liquid in a plurality of flexible pipe be conveyed along the rotation direction of rotation dish.The achievable multi-pipeline stabilization of the present invention is conveyed.
Description
Technical field
The present invention relates to liquid pump field, specifically, it is related to a kind of peristaltic pump.
Background technology
Peristaltic pump is alternately extruded by the elastic delivery hose to pump and discharged and pumps fluid, is generally used for liquid
Metering filling field, such as quantitative filling of medical treatment detection and chemical detection reagent, its operation principle is generally by compression roller
Rotated in pump case around a rotary shaft parallel with its axle, extrude and promote the liquid in elastic delivery hose to travel forward, made
Elastic delivery hose rear end produces vacuum, draws liquid into elastic delivery hose, is further pushed away by the compression roller for following up below
It is dynamic to advance, so as to quantitatively transport liquid.
Using peristaltic pump carry out liquid convey when, in addition to flexible pipe, institute's conveying products not with pump housing directly contact, and repeat essence
Degree and stability are all higher, and any part of pump will not be caused damage in the case of no liquid dry run, and can convey various has
The medical reagent of burn into oxygen sensitivity characteristic, chemical reagent, unclassified stores and various food etc..When in use, only flexible pipe is needs
The part of replacement, and replacement operation is simpler, thus peristaltic pump is widely applied to the conveying of various fluids.
Chinese utility model patent CN201953621U discloses such a Peristaltic pump head, including preceding fagging 6, back brace
Plate 5, the upper holder block 8 being arranged between the preceding fagging and rear stay plate and card pipe device 11, are arranged on preceding fagging and rear stay plate
The roller devices of central hole, are formed with the first chute 51 between the preceding fagging and rear stay plate, the upper holder block be provided with
The sliding block 81 of the first chute slide fit, the bottom of first chute is provided with clamp portion of the card with the sliding block（I.e.：Draw-in groove）.
Upper holder block 8 utilizes the elasticity of itself, and its sliding block is pressed into the first chute, is discharged after clamp portion is entered, by natural resiliency, on
Briquetting recovers original form, and operating position is fixed on automatically.Peristaltic pump head disclosed in the utility model has following 3 and asks
Topic, problem 1：Upper holder block 8 must have elasticity, otherwise be difficult to complete assembling；Problem 2：Peristaltic pump head is by upper holder block 8, rolling
The flexible pipe of wheel 12 and conveying liquid（It is not shown）Coordinate to realize the conveying of liquid, because upper holder block 8 possesses elasticity, rigid
It is low, it is suitable only for one or two Pipeline transports, it is impossible to realize that multi-pipeline is conveyed, if necessary to multi-pipeline conveying, then need to use
Multiple wriggling parallels connection of pumps work simultaneously, and the cost for conveying liquid increases；Problem 3：Also it is compacted just because upper holder block 8 possesses elasticity
After dynamic pump pump head long-term work, deformation is susceptible to, it is difficult to ensure that quantitatively conveying liquid.
The content of the invention
It is an object of the invention to provide a kind of intensity is high, multi-pipeline, the peristaltic pump of stabilization conveying.
To achieve the above object, the peristaltic pump that the present invention is provided includes pump case and the pump housing, and the pump housing is arranged in pump case, the pump housing
Including rotation dish and compression roller, rotation dish includes two the first rotation dish and the second rotation dish for facing each other and being coaxially disposed,
The two ends of compression roller are supported by the first rotation dish and the second rotation dish respectively, and rotation dish is connected with drive shaft and turns with around central shaft
It is dynamic.Compression roller is set to two or more, equidistant with respect to central shaft and symmetrically set, and the flexible pipe for conveying liquid is set
Between compression roller and pump case, and the roller extruding that is squeezed, drive compression roller to rotate during turn disc, so as to by the liquid in flexible pipe
Body is conveyed along the rotation direction of rotation dish.Flexible pipe is set to more than two, is arranged side by side along the axial direction of compression roller.Pump case is by rigidity
Material is made without elasticity.Flexible pipe introduces face and enters in pump case from the flexible pipe of pump case, and is drawn from the flexible pipe lead surface of pump case,
It is the same side of pump case that flexible pipe introduces face with flexible pipe lead surface.Pump case includes upper pump case, lower pump case and center section, first turn
Moving plate is arranged on pump case, and the second rotation dish is arranged on lower pump case, and the part that flexible pipe is located in pump case is arranged on pars intermedia
Divide and compression roller between, center section is " recessed " type with opening, and the face relative with opening is arc surface, and flexible pipe is by setting
Open slot on upper pump case or lower pump case is put to enter in pump case, and open slot from upper pump case or the opposite side of lower pump case draws
Go out, the opening portion of open slot is closed in center section.
From above scheme, flexible pipe is arranged between compression roller and rigid pump case, and the roller extruding that is squeezed, and rotation dish turns
Compression roller is driven to rotate when dynamic, so as to the liquid in flexible pipe be conveyed along the rotation direction of rotation dish, to realize soft liquid in pipe
Stabilization conveying, and multiple flexible pipe can be arranged side by side along the length direction of compression roller, when the length of compression roller is more long, can arrange
More pipeline, so as to realize that multi-pipeline is conveyed.Pump case is made of rigid material, pump case is had higher-strength, is not likely to produce
Deformation, is capable of achieving the stabilization conveying of liquid.Flexible pipe is passed in and out from the same side of pump case, and flexible pipe can be squeezed pressure roller interior in a big way
Extruding pushes liquid, so as to convey more stable.Flexible pipe can be arranged on pump case by open slot, and the opening portion of open slot can
Closed by center section, so as to realize the fixation of flexible pipe, and when needing to change flexible pipe, center section need to only be removed, i.e.,
Flexible pipe can be exposed, to realize easily replacing, convenient maintenance.
More specific scheme is, axle center and the center overlapping of axles of arc surface, and the angle of arc surface is 120 degree~180 degree, circle
The two ends of cambered surface are provided with transition face.
From above scheme, axle center and the center overlapping of axles of arc surface, so that flexible pipe is squeezed pressure roller when extruding, in circular arc
In the range of face, the uniform force of flexible pipe.The angle of arc surface may be configured as 120 degree~180 degree, thus flexible pipe can 120 degree~
Pressure roller extruding is squeezed in the range of 180 degree and pushes liquid, so as to convey more stable.By the setting of transition face, make compression roller pair
The extruding force smooth transition of flexible pipe, and then flexible pipe is hardly damaged.
More specifically scheme is to be provided with partition wall in arc surface and compression roller, and another is provided with and divides
The groove that next door is engaged.
From above scheme, in peristaltic pump working condition, partition wall can be extend into groove, by partition wall with it is recessed
The position-limiting action to flexible pipe is realized in the cooperation of groove, it is to avoid flexible pipe sideslip, such that it is able to avoid it is adjacent between flexible pipe occur it is dry
Relate to.
Further more specifically scheme is, partition wall is arranged on arc surface, and extends to transition face, groove from arc surface
It is arranged on compression roller.
From above scheme, partition wall is also equipped with transition face, by the cooperation of partition wall and groove, partition wall can
Realize the guiding of compression roller.
Preferably, the structure being connected with drive shaft is both provided with the first rotation dish and the second rotation dish.
From above scheme, drive shaft can be connected with the first rotation dish and is also connected with the second rotation dish, so as to drive
Can be more flexible, installation is also more convenient, and can easily realize the conveying of both direction.
It is highly preferred that the bottom of pump case is provided with leakage collecting tank, the wetting that setting is connected with leakage collecting tank on pump case
Property material, wetability material color after being contacted with liquid changes.
From above scheme, when the flexible pipe in pump case occurs leakage, first to be concentrated in leakage collecting tank, soak
Property material contacted with liquid after color change, such that it is able to easily discover, to repair or replace flexible pipe in time.
Another preferred scheme is that flexible pipe is set to three, and compression roller is set to three；Set on upper pump case or lower pump case
The limiting structure that limitation center section departs from along the direction away from flexible pipe introducing face is equipped with, or is all set on upper pump case and lower pump case
It is equipped with limiting structure.
From above scheme, three flexible pipes can realize three Pipeline transports, and the setting of three compression rollers makes rotating disk rotate one
Circle is capable of achieving three three extruding conveyings to flexible pipe, by driving turn disc certain angle, realizes quantitative conveying, every time
Quantify and be smaller than a circle, or a few circles, conveying capacity is directly proportional to the angle of turn disc.In being realized by limiting structure
Between part fixation, change flexible pipe when, can first dismantle lower limiting structure or make limiting structure be in do not limit center section
Position.
Another preferred scheme is that flexible pipe includes setting the joint at its two ends, and joint is fixed on the pump case.
From above scheme, it is fixed on pump case by joint, the flexible pipe in pump case will not produce global displacement, so that
The conveying of liquid is more stable.
Another preferred scheme is that the guide structure coordinated with center section is set on upper pump case or lower pump case, or
The guide structure coordinated with center section is both provided with upper pump case and lower pump case.
From above scheme, the setting of guide structure is capable of achieving the precise positioning of center section.
Even more preferably, guide ribs are provided with lower pump case, gathering sill is provided with center section.
From above scheme, by the cooperation of the gathering sill in the guide ribs and center section on lower pump case, can be conveniently
The installation positioning of center section.
Brief description of the drawings
Fig. 1 is the structural representation of first embodiment of the invention；
Fig. 2 is first embodiment of the invention introduces structural representation when from the point of view of face from its flexible pipe；
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is the structural representation of first embodiment of the invention middle pump body；
Fig. 5 is the structural representation of first embodiment of the invention middle pump body and flexible pipe；
Fig. 6 is the structural representation of center section in first embodiment of the invention；
Fig. 7 is the structural representation of center section in first embodiment of the invention；
Fig. 8 is the structure chart of lower pump case in first embodiment of the invention;
Fig. 9 is the structural representation of center section in second embodiment of the invention；
Figure 10 is the structural representation of center section in second embodiment of the invention；
Figure 11 is the structural representation of second embodiment of the invention middle pump body；
Figure 12 is the structural representation of second embodiment of the invention middle pump body；
Figure 13 is the B-B sectional views of Figure 12；
Figure 14 is second embodiment of the invention introduces structural representation when from the point of view of face from its flexible pipe；
Figure 15 is the C-C sectional views of Figure 14.
Specific embodiment
First embodiment：
As shown in figure 1, peristaltic pump includes pump case 1 and the pump housing in pump case, pump case 1 is on the whole hexahedral shape, bag
Pump case 11, center section 12 and lower pump case 13 are included, wherein being fixed by screw 3 between upper and lower pump case, screw 4 is arranged on pump
On shell 11 and lower pump case 13, its head of screw is abutted with center section, so as to limit center section 12 with upper pump case 11 or lower pump case
Depart from.Pump case 1 is made up of rigid material, and without elasticity.Pump case 1 can be by metal material, plastics or other rigid materials
It is made.
As shown in Fig. 2 flexible pipe 5 enters in pump case 1 from a side of pump case 1, the side is flexible pipe and introduces face, while
Flexible pipe 5 is also drawn from the side, i.e., it is the same side of pump case 1 that flexible pipe introduces face with flexible pipe lead surface.Also set up on the side
There is wetability material 6, wetability material 6 is connected with the leakage collecting tank in pump case.
With reference to Fig. 3 and Fig. 4, the pump housing 2 is arranged in pump case, including the first rotation dish 21, the second rotation dish 22, connection first
The main shaft 23 of the rotation dish 22 of rotation dish 21 and second and two ends are arranged on respectively by the first rotation dish 21 and the second rotation dish 22
The compression roller 24 of support, the structure that the end of main shaft 23 is connected as rotation dish with drive shaft, the outside of main shaft 23 can be provided with bearing
26, make the rotation of rotation dish more flexible, wherein the two ends of main shaft 23 can be all connected to drive turn disc with drive shaft, so that
Driving can be more flexible, and installation is also more convenient, and can easily realize the conveying of both direction.The central shaft of rotation dish and main shaft 23
Center overlapping of axles, three compression rollers 24 are equidistant with respect to central shaft and symmetrically set, and the flexible pipe for conveying liquid is set
Between the center section 12 of compression roller 24 and pump case, and it is squeezed roller 24 and center section 12 extrudes, dotted line show in Fig. 3
Imaginary positions when flexible pipe is not compact.
First rotation dish 21 is located in upper pump case 11, and the top surface that main shaft 23 is extend out to from upper pump case 11 exposes, with driving
Axle is connected, and the second rotation dish 22 is located in the cavity of lower pump case 13, and leakage collecting tank 131 is located at the second rotation dish 22 and cavity bottom
Between face, wetability material 6 is connected with leakage collecting tank 131.
As shown in figure 5, part of the flexible pipe 5 in pump case includes joint 51 and connection flexible pipe 52.Its center tap 51 is fixed on
On pump case 1, so that connection flexible pipe 52 can be precisely located.
As shown in fig. 6, center section 12 is " recessed " type with opening, and the face relative with opening is arc surface 123, circle
The axle center of cambered surface 123 and center overlapping of axles, so as in compression roller extruding connection flexible pipe 52, connect the uniform force of flexible pipe 52.
As shown in fig. 7, the angle [alpha] of arc surface is 120 degree~180 degree（180 degree can not be included yet not comprising 120 degree）, flexible pipe can be 120
Pressure roller extruding is squeezed in the range of degree~180 degree and pushes liquid, so as to convey more stable, the face being connected with arc surface 123 can
It is inclined-plane or other transition faces.At transition face, when connection flexible pipe 52 is squeezed pressure roller 24 and extrudes, suffered extruding force is less than circular arc
Extruding force at face 123, and with neighbouring with arc surface 123, connect the extruding force suffered by flexible pipe 52 and gradually increase, so that real
The smooth transition of existing extruding force, connection flexible pipe 52 is hardly damaged.Gathering sill 122 is provided with the bottom surface 121 of center section 12, with
It is engaged with the guide ribs 132 set on lower pump case 13, referring to Fig. 8, is positioned with the installation for facilitating center section 12.Joint 51 blocks
In the tight open slot 133 on lower pump case 13, and the opening portion of open slot 133 is closed in center section 12.On lower pump case 13
Screw hole 134 is fixed for mounting screw 3 with upper pump case 11.
Operationally, the joint 51 of both sides is connected the present embodiment with input flexible pipe and delivery hose respectively, and with pump case 1 in
The connection composition path of flexible pipe 52, drive shaft is rotated in the case where motor or other drive devices drive, and rotation dish band is made by main shaft 21
Dynamic compression roller 24 is rotated along conveying direction, extrudes and promote the liquid in connection flexible pipe 52 quantitatively to be conveyed along conveying direction, makes liquid
Body stably flows to delivery hose from input flexible pipe.
When 51 part seepage of flexible pipe 52 or joint is connected, the liquid for leaking out can be flowed into leakage collecting tank 131, with leakage
The color of the connection wetability of liquid collecting tank 131 material 6 can produce change, remind the user that leakage is produced.Now, need to only tear open
Screw 4 is unloaded, connection flexible pipe 52 and joint 51 are exposed by removing center section 12 along the direction away from flexible pipe introducing face, checked
After processing or changing problematic connection flexible pipe or joint, center section 12 is turned back to, gathering sill 122 is slided along guide ribs 133,
Both sides to center section 12 close the opening portion of open slot 133 and the another side relative with flexible pipe introducing face completely, middle
Part 12 is generally aligned in the same plane with upper pump case 11, lower pump case 13, and peristaltic pump can be reused.
Second embodiment：
Relative to first embodiment, second embodiment to the structure of compression roller 24 and center section 12 further change
Enter.
Referring to accompanying drawing 9 and accompanying drawing 10, the axially disposed 2 arc partition walls 124 of the arc surface 123 of center section 12,
The two ends of arc partition wall 124 extend to transition face from arc surface 123.Referring to accompanying drawing 11 to accompanying drawing 13, the circle of the roller 24 that is squeezed
2 annular grooves 241 being engaged with arc partition wall 124 are provided with week.Referring to accompanying drawing 15, in peristaltic pump working condition
When, arc partition wall 124 is extend into annular groove 241, by the cooperation of arc partition wall 124 and annular groove 241, comes real
The effect of existing spacing flexible pipe, it is to avoid flexible pipe sideslip, and partition wall at transition face can realize the guiding to compression roller 24.At it
In his embodiment, partition wall may be provided on compression roller, formed ring-type partition wall, and on center section set match somebody with somebody with partition wall
The groove of conjunction, then be formed as arc groove.
Show that isolating 3 flexible pipes with two annular grooves cooperations respectively using two arc partition walls accommodates in figure
Space, so as to avoid it is adjacent between flexible pipe interfere.It is understood that the quantity of arc partition wall and annular groove is not
Limit 2, can determine the quantity of arc partition wall and annular groove according to the quantity of flexible pipe.
In other embodiments, two rotation dish can be fixedly connected by multiple connecting rods rather than main shaft；The quantity of flexible pipe
It can be two or four；Compression roller can be two or four；Center section can be set guide ribs and set gathering sill on lower pump case；
The installation guide structure of center section may be provided on pump case and center section；Open slot may be provided on pump case；Upper pump
Shell or lower pump case can be set the limiting structure that other limitation center sections depart from along the direction away from flexible pipe introducing face, without using
Screw, such as pivotable limited block.
It is understood that peristaltic pump of the present invention can be used to convey various liquid, fluid, including it is sensitive with burn into oxygen
The medical reagent of characteristic, chemical reagent, unclassified stores and various food etc..
Claims (10)
1. peristaltic pump, including pump case and the pump housing, the pump housing are arranged in the pump case, and the pump housing includes rotation dish and extruding
Roller, the rotation dish includes two the first rotation dish and the second rotation dish for facing each other and being coaxially disposed, the compression roller
Two ends are supported by first rotation dish and second rotation dish respectively；
The rotation dish is connected with drive shaft and is rotated with around central shaft；
The compression roller is set to two or more, and relatively described central shaft is equidistant and symmetrically sets, for conveying liquid
Flexible pipe be arranged between the compression roller and the pump case, and by the compression roller extruding, during the turn disc drive
The compression roller is rotated, so as to the liquid in the flexible pipe be conveyed along the rotation direction of rotation dish；
It is characterized in that：
The flexible pipe is set to more than two, is arranged side by side along the axial direction of the compression roller；
The pump case is made up without elasticity of rigid material；
The flexible pipe introduces face and enters in the pump case from the flexible pipe of the pump case, and draws from the flexible pipe lead surface of the pump case
Go out, the flexible pipe introduces face and the same side that the flexible pipe lead surface is the pump case；
The pump case includes upper pump case, lower pump case and center section, and first rotation dish is arranged on the upper pump case, described
Second rotation dish is arranged on the lower pump case, the flexible pipe be located at the pump case in part be arranged on the center section with
Between the compression roller, the center section is " recessed " type with opening, and the face relative with the opening is arc surface, institute
Flexible pipe is stated to enter in the pump case by the open slot that is arranged on the upper pump case or the lower pump case, and from the upper pump case
Or the open slot of the opposite side of the lower pump case is drawn, the opening portion of the open slot is closed in the center section.
2. peristaltic pump according to claim 1, it is characterised in that：
The axle center of the arc surface and the center overlapping of axles, the angle of the arc surface is 120 degree~180 degree, the circular arc
The two ends in face are provided with transition face.
3. peristaltic pump according to claim 2, it is characterised in that：
Partition wall is provided with the arc surface and the compression roller, another is provided with and matches with the partition wall
The groove of conjunction.
4. peristaltic pump according to claim 3, it is characterised in that：
The partition wall is arranged on the arc surface, and extends to the transition face from the arc surface, and the groove is set
On the compression roller.
5. peristaltic pump according to any one of claim 1 to 4, it is characterised in that：
The structure being connected with the drive shaft is both provided with first rotation dish and second rotation dish.
6. peristaltic pump according to claim 5, it is characterised in that：
The bottom of the pump case is provided with leakage collecting tank, and the wetability connected with the leakage collecting tank is set on the pump case
Material, wetability material color after being contacted with liquid changes.
7. peristaltic pump according to claim 5, it is characterised in that：
The flexible pipe is set to three, and the compression roller is set to three；
The flexible pipe includes setting the joint at its two ends, and the joint is fixed on the pump case.
8. peristaltic pump according to claim 5, it is characterised in that：
The restricted center section is set on the upper pump case or the lower pump case along the direction away from flexible pipe introducing face
The limiting structure is both provided with the limiting structure of disengaging, or the upper pump case and the lower pump case.
9. peristaltic pump according to claim 5, it is characterised in that：
Set on the upper pump case or the lower pump case with the center section coordinate guide structure, or the upper pump case and
The guide structure coordinated with the center section is both provided with the lower pump case.
10. peristaltic pump according to claim 9, it is characterised in that：
Guide ribs are provided with the lower pump case, gathering sill is provided with the center section.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420008.8A CN109372731B (en) | 2017-04-06 | 2017-04-06 | Peristaltic pump |
| CN201710220216.2A CN106884782B (en) | 2017-04-06 | 2017-04-06 | peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220216.2A CN106884782B (en) | 2017-04-06 | 2017-04-06 | peristaltic pump |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811420008.8A Division CN109372731B (en) | 2017-04-06 | 2017-04-06 | Peristaltic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884782A true CN106884782A (en) | 2017-06-23 |
| CN106884782B CN106884782B (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811420008.8A Active CN109372731B (en) | 2017-04-06 | 2017-04-06 | Peristaltic pump |
| CN201710220216.2A Active CN106884782B (en) | 2017-04-06 | 2017-04-06 | peristaltic pump |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811420008.8A Active CN109372731B (en) | 2017-04-06 | 2017-04-06 | Peristaltic pump |
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| Country | Link |
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| CN (2) | CN109372731B (en) |
Cited By (8)
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| CN106704156A (en) * | 2016-11-30 | 2017-05-24 | 重庆速腾机械制造有限公司 | Conveying pump capable of controlling flow of multipath coaxial fluid |
| CN106762569A (en) * | 2016-11-30 | 2017-05-31 | 重庆速腾机械制造有限公司 | A kind of multichannel coaxial flow delivery pump |
| CN107725343A (en) * | 2017-11-09 | 2018-02-23 | 四川君汇科技有限公司 | Combined type peristaltic pump and integrated positioning installation method |
| CN107829919A (en) * | 2017-11-09 | 2018-03-23 | 四川君汇科技有限公司 | Ball-type peristaltic pump and pump line installation method |
| CN108278194A (en) * | 2018-01-23 | 2018-07-13 | 四川君汇科技有限公司 | The ball-type peristaltic pump of class toothing |
| CN108386346A (en) * | 2018-05-10 | 2018-08-10 | 无锡市天利流体科技有限公司 | Multichannel trace regulation Wriggling Pump Head |
| CN112892344A (en) * | 2019-12-03 | 2021-06-04 | 盛美半导体设备(上海)股份有限公司 | Chemical liquid supply device and semiconductor equipment |
| CN113215418A (en) * | 2021-06-23 | 2021-08-06 | 朝阳金达钛业股份有限公司 | Uniform and accurate high-precision titanium tetrachloride feeding method |
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| CN111715105A (en) * | 2020-07-29 | 2020-09-29 | 安徽砀山海升果业有限责任公司 | Quantitative equipment for preparing mixed fruit juice and raw material quantitative method thereof |
| CN114278542B (en) * | 2021-12-28 | 2023-11-21 | 通达创智(厦门)股份有限公司 | Peristaltic pump for transporting liquid in equal quantity through multiple tubes |
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| CN106884782B (en) | 2019-01-11 |
| CN109372731B (en) | 2020-10-20 |
| CN109372731A (en) | 2019-02-22 |
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