CN114278542A - Peristaltic pump for multi-tube equivalent liquid conveying - Google Patents
Peristaltic pump for multi-tube equivalent liquid conveying Download PDFInfo
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- CN114278542A CN114278542A CN202111624958.4A CN202111624958A CN114278542A CN 114278542 A CN114278542 A CN 114278542A CN 202111624958 A CN202111624958 A CN 202111624958A CN 114278542 A CN114278542 A CN 114278542A
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- peristaltic
- peristaltic pump
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- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 336
- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000005086 pumping Methods 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 238000001125 extrusion Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 15
- 230000006872 improvement Effects 0.000 description 13
- 238000005507 spraying Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000011344 liquid material Substances 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 2
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- 210000004369 blood Anatomy 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
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- 230000001427 coherent effect Effects 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a peristaltic pump of liquid is carried to multitube equivalent, relates to little micro-flow peristaltic pump field, including the peristaltic pump casing to and install the transmission assembly inside the peristaltic pump casing, the peristaltic assembly with be used for pumping out the nest of tubes of liquid, the nest of tubes includes at least three peristaltic pipes of arranging side by side, the peristaltic assembly includes carousel down, the even interval of two rollers sets up carousel under, the peristaltic pipe sets up between peristaltic pump casing inner wall and roller outer wall, the motor passes through transmission assembly and drives lower carousel rotation, make the interior liquid pump of peristaltic pipe realization peristaltic pipe of roller extrusion peristaltic pipe. According to the peristaltic pump for conveying liquid in an equivalent manner through the multiple pipes, the rollers are stably extruded through the matching of the first limiting part and the second limiting part, every two peristaltic pipes are connected through the connecting part to ensure that the peristaltic pipes cannot jump randomly in the extrusion process, and then the peristaltic pipes are matched with the pipe clamps arranged at the positions where the pipe groups enter and leave the peristaltic pump shell, so that the peristaltic pipes cannot deform due to friction in the rolling process, and the liquid can be pumped out in an equivalent manner through the multiple pipes.
Description
Technical Field
The invention relates to the field of small micro-flow peristaltic pumps, in particular to a peristaltic pump with multiple pipes for conveying liquid in an equivalent manner.
Background
In the field of material spraying and conveying, a peristaltic pump is a common pump which can pump liquid materials out of a peristaltic tube through extrusion and further is used for spraying the liquid materials to a target area or conveying the liquid materials to a corresponding container, and in the spraying use of a handheld spraying device for daily use, a consumer wants to achieve uniform skin care effect by consistent spraying amount on various places on the skin, so that the uniform spraying effect of the spraying device plays a decisive factor for purchasing behaviors of the consumer, and the consumer generally judges whether the atomization effect sprayed by each nozzle is the same or not by observing; or in the application of some special fields such as the atomization spraying of the culture solution on the culture dish, the use amount of the atomized culture solution sprayed by each spray head is required to be completely consistent, and the culture effect of microorganisms can be greatly influenced by slight deviation; therefore, how to design the peristaltic pump to realize the equal-quantity liquid conveying and spraying of the multiple pipes is a technical problem.
At present, peristaltic pumps on the market generally control the pumping process of only one peristaltic tube at a time, if a plurality of peristaltic tubes need to be controlled, a plurality of peristaltic pumps need to be arranged to respectively control the corresponding peristaltic tubes, for example, in the automatic seasoning adding device suitable for the full-automatic cooker disclosed in the application of the chinese patent application (application No. 201310065109.9), uses a plurality of peristaltic pumps to convey seasonings, and also adopts a plurality of peristaltic pumps as a three-pump autologous blood recovery machine control system (application number CN201721678474.7) with a whole blood recovery mode in China utility model, this requires, on the one hand, a great deal of space to arrange the peristaltic pumps, which makes the installation large, and the plurality of peristaltic pumps itself represents a higher cost, and, on the other hand, even if a plurality of peristaltic pumps are provided, since the activity of each peristaltic pump is independent, it is difficult to control the uniformity of the amount of liquid material sprayed or delivered by each peristaltic tube.
In particular, although the electrostatic atomizer for liquid disclosed in the chinese invention application (application No. CN201880041601.3) uses a roller to roll and press a plurality of peristaltic tubes simultaneously to achieve a pumping effect, the specification of this application only states "the continuous hose with the conduit shown in the present case as one piece, for the sake of clarity, only one hose to the nozzle array of the atomizer nozzles is shown, however, the atomizer nozzles may be supplied by a plurality of hoses, in particular one hose per atomizer nozzle, alternatively, a set of several atomizer nozzles can be supplied by one hose, a multi-hose pump being provided in case of multiple hoses, which can pump a plurality of hoses arranged in a ribbon (like a ribbon cable) in parallel, for example by means of a widened rotor, the overall internal structure only gives a simple illustration and no specific implementation is proposed as to how to solve an equal amount of transported liquid.
Disclosure of Invention
In order to solve the problems, the invention provides a multi-pipe peristaltic pump for conveying liquid in equal quantity, which is provided with a pipe group with at least three peristaltic pipes, and the peristaltic assembly is driven by a transmission assembly to roll the pipe group so as to synchronously control each peristaltic pipe to pump, so that the pumping effect of multiple pipes in equal quantity is achieved.
The specific technical scheme is as follows:
a peristaltic pump with multiple pipes for conveying liquid in equal quantity comprises a peristaltic pump shell, and a motor, a transmission assembly, a peristaltic assembly and a pipe set for pumping liquid, which are arranged in the peristaltic pump shell, wherein the pipe set at least comprises three peristaltic pipes, the peristaltic pipes are arranged side by side, and every two peristaltic pipes are connected at equal intervals; the transmission assembly comprises a gear shaft and a first gear, the gear shaft is fixed inside the peristaltic pump shell, the first gear is fixedly arranged in the gear shaft in a penetrating manner and rotates around the shaft, a first limiting part is arranged on one end face of the first gear, the peristaltic assembly comprises a lower turntable, at least two rollers arranged on the lower turntable and a rotating cylinder arranged at the center of the lower turntable, and a second limiting part matched with the first limiting part is arranged on the end face of the rotating cylinder close to the first gear to realize synchronous rotation of the first gear and the lower turntable; at least two rollers are arranged between the first gear and the lower rotary table at equal intervals, the pipe group is arranged between the inner wall of the peristaltic pump shell and the outer wall of the rollers, the motor drives the lower rotary table to rotate through a transmission assembly, so that at least one roller simultaneously presses the pipe group and a plurality of rollers can alternately press the pipe group, and liquid in the pipe group is pumped out; the peristaltic pump is characterized in that two peristaltic pipe clamps are arranged on the pipe group, and the two peristaltic pipe clamps are respectively arranged at the positions where the pipe group enters and leaves the peristaltic pump shell and are used for fixing the peristaltic pipes in the peristaltic pump shell.
As a further improvement, the first gear is provided with a first cylindrical protrusion on the surface opposite to the lower turntable, the lower turntable is provided with a second cylindrical protrusion on the surface opposite to the first gear, the position of the first cylindrical protrusion is coaxial with that of the second cylindrical protrusion, holes matched with the first cylindrical protrusion and the second cylindrical protrusion are formed in two ends of the roller, and the first cylindrical protrusion and the second cylindrical protrusion are respectively inserted into the holes in the two ends of the roller for installation.
As a further improvement, the roller rotates around the gear shaft under the driving of the lower rotary table and the first gear which rotate synchronously, holes formed at two ends of the roller are in clearance fit with the first cylindrical protruding portion and the second cylindrical protruding portion respectively, so that the roller can rotate relative to the axis of the first cylindrical protruding portion and the axis of the second cylindrical protruding portion respectively when rolling the creeping pipe.
As a further improvement, the inner diameter of the peristaltic tube ranges from 0.8mm to 1.0mm, a connecting part is arranged between the peristaltic tubes, the width of the connecting part, namely the distance between every two peristaltic tubes, is 25-30% of the inner diameter of the peristaltic tubes, and the thickness of the connecting part is 20-25% of the inner diameter of the peristaltic tubes.
As a further improvement, the peristaltic pipe clamp is U-shaped, semi-arc grooves are formed in two sides of the peristaltic pipe clamp, a buckle structure is arranged at the U-shaped opening of the peristaltic pipe clamp, when the buckle structure is buckled, the semi-arc grooves on two sides of the peristaltic pipe clamp are closed to form a through hole for clamping the peristaltic pipe, the outer diameter of the peristaltic pipe is larger than the inner diameter of the through hole formed when the buckle structure is buckled by 0.05-0.1 mm, a protruding rib is arranged at a position corresponding to the connecting portion of the peristaltic pipe clamp, and when the buckle structure is closed, the protruding rib compresses the connecting portion.
As a further improvement, the first limiting part comprises a limiting barrel and a convex block arranged at the lower edge of the limiting barrel, the second limiting part comprises a rotating barrel and a concave part arranged on the rotating barrel, and the convex block is embedded with the concave part to realize that the first gear drives the lower rotating ring to rotate synchronously with the gear shaft.
As a further improvement, the peristaltic pump housing comprises an upper peristaltic pump cover and a lower peristaltic pump cover, the upper peristaltic pump cover and the lower peristaltic pump cover are buckled to form the peristaltic pump housing with a cavity, the upper peristaltic pump cover is provided with a round hole for mounting a gear shaft, the round hole is in interference fit with the gear shaft, the lower peristaltic pump cover comprises two peristaltic pipe clamp mounting parts and a cylindrical bulge, and the two peristaltic pipe clamp mounting parts are respectively arranged at positions where the pipe group enters and leaves the peristaltic pump housing; the cylinder is protruding to be set up in the peristaltic pump lower cover, the carousel cover is in can wind in the cylinder is protruding the protruding axial lead of cylinder rotates, the gear shaft is kept away from the one end of first gear injects the bellied centre bore of cylinder, the round hole of peristaltic pump upper cover the axle center with the bellied axle center coincidence of cylinder, the bellied centre bore of cylinder and gear shaft interference fit, two the peristaltic pipe clamp installation department is used for installing the peristaltic pipe clamp and prevents to be located inside the peristaltic pump casing the drunkenness or dislocation take place for the nest of tubes.
As a further improvement, the peristaltic pump still includes one be used for the intercommunication stock solution soft package with the adapter subassembly of peristaltic pipe, the adapter subassembly include with the soft rotatory fixed adapter of stock solution, with the switching lid that the adapter is connected, set up in sealing washer between adapter and the switching lid.
As a further improvement, at least three metal tubes are embedded in the switching cover, the head ends of the peristaltic tubes are connected with the switching cover through the metal tubes in one-to-one correspondence, tube bodies of the peristaltic tubes are arranged between the inner wall of the lower cover of the peristaltic pump and the outer wall of the roller side by side, and the peristaltic tubes are respectively connected with each nozzle outside the lower cover of the peristaltic pump.
As a further improvement, the transmission assembly further comprises a worm fixedly connected with the output end of the motor, a worm wheel matched with the worm, and a second gear coaxial with the worm wheel and arranged on one end face of the worm wheel, wherein the second gear is meshed with the first gear to realize speed reduction.
The invention has the beneficial effects that:
1. the invention provides a peristaltic pump for conveying liquid in equal amount through multiple pipes, which is characterized in that on power transmission, one end face of a first gear is provided with a first limiting part, a lower rotary disc is provided with at least two rollers and a rotary cylinder arranged at the center of the lower rotary disc, the end face of the rotary cylinder close to the first gear is provided with a second limiting part embedded with the first limiting part so as to realize synchronous rotation of the first gear and the lower rotary disc around a gear shaft, meanwhile, holes at two ends of the rollers are in clearance fit with a first cylindrical bulge and a second cylindrical bulge, so that the rollers rotate around the axes of the first cylindrical bulge and the second cylindrical bulge while revolving around the gear shaft to form rolling friction, the rollers can be uniformly and stably extruded on the peristaltic pipes, the friction between the rollers and the peristaltic pipes is reduced, and the peristaltic pipes are prevented from being stretched and deformed so as to damage the function of the peristaltic pump, the liquid is stably pumped out.
2. According to the peristaltic pump for conveying liquid in an equivalent manner by the multiple pipes, three or more peristaltic pipes are arranged between the inner wall of the lower cover of the peristaltic pump shell and the outer wall of the roller, the peristaltic pipes are arranged side by side at equal intervals, a connecting part is arranged between every two peristaltic pipes, the pipe diameters and the wall thicknesses of the peristaltic pipes are consistent, on one hand, the peristaltic pipes are guaranteed to convey equivalent liquid, on the other hand, when the roller extrudes the peristaltic pipes, the peristaltic pipes are guaranteed to be completely extruded and cannot jump, and therefore the effect of outputting the equivalent amount by the multiple pipes is achieved.
3. According to the peristaltic tube clamp, the tube clamps are arranged at the starting point of the peristaltic tube entering the inner wall of the shell and the ending point of the peristaltic tube leaving the inner wall of the shell, the tube clamps are provided with the buckling structures, when the buckling structures are buckled, the semi-arc grooves on the two sides of the peristaltic tube clamp are closed to form the through hole for clamping the peristaltic tube, the protruding ribs are arranged at the positions, corresponding to the connecting parts, of the tube clamps, when the buckling structures are closed, the protruding ribs compress the connecting parts, so that the peristaltic tube cannot be deformed due to the fact that a roller pulls the peristaltic tube due to friction force when the roller rolls the peristaltic tube, and the effect of equivalent output cannot be achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic three-dimensional structure of a multi-tube peristaltic pump for equal delivery of liquid provided by the present invention;
FIG. 2 is an exploded view of the peristaltic pump provided by the present invention;
FIG. 3 is an exploded view of the peristaltic pump provided by the present invention from another perspective;
FIG. 4 is a schematic three-dimensional structure of a peristaltic tube clamp of the peristaltic pump provided by the present invention;
FIG. 5 is a schematic three-dimensional structure of a turbine and a second gear of the peristaltic pump provided by the present invention;
FIG. 6 is an exploded view of the first gear and peristaltic assembly of the peristaltic pump provided by the present invention;
FIG. 7 is a detail view of the lower disc of the peristaltic pump provided by the present invention;
FIG. 8 is a detail view of a first gear of the peristaltic pump provided by the present invention;
FIG. 9 is a cross-sectional view of a roller rolled peristaltic tube of the peristaltic pump provided by the present invention;
FIG. 10 is a component view of a tubing set of the peristaltic pump provided by the present invention;
FIG. 11 is an enlarged partial view of the components of the tube set of the peristaltic pump provided in accordance with the present invention;
FIG. 12 is a schematic view of another angle of the peristaltic pump with multiple tubes for equal delivery of liquid according to the present invention.
Wherein, the main element symbol explanation is as follows:
10-peristaltic pump housing; 101-an upper cover of a peristaltic pump; 102-a lower cover of a peristaltic pump; 1021-peristaltic tube clamp mounting; 1022-cylindrical projection;
a 20-tube bank; 201-peristaltic tube; 202-peristaltic tube clamps; 2021-snap fit arrangement; 2022-semi-circular arc groove; 2023-raised ribs; 203-a connecting portion;
30-a peristaltic assembly; 301-lower turntable; 3011-rotating the barrel; 3012-a second cylindrical projection; 3013-a recess; 302-a roller; 303-gear shaft;
40-a transmission assembly; 401-a worm; 402-a worm gear; 403-a first gear; 4031-a first cylindrical projection; 4032-a spacing cylinder; 4033-bump; 404-a second gear;
50-a motor;
60-an adapter assembly; 601-an adapter cap; 602-a sealing ring; 603-a metal tube; 604-an adapter;
70-atomizing nozzle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 3, in a specific embodiment, a multi-tube peristaltic pump for conveying liquid in equal amount is provided, which includes a peristaltic pump housing 10, where the peristaltic pump housing 10 is composed of a peristaltic pump upper cover 101 and a peristaltic pump lower cover 102, and the peristaltic pump upper cover 101 and the peristaltic pump lower cover 102 are covered to form a mounting cavity. Inside the peristaltic pump housing 10 are mounted a motor 50, a transmission assembly 40, a peristaltic assembly 30 and a tube set 20 for conveying a liquid, as shown in fig. 2 and 3. The peristaltic pump provided in this embodiment is a micro-flow multi-tube equivalent peristaltic pump, wherein the peristaltic tubes 201 are configured to be highly elastic silicone tubes or rubber tubes, and the tube set 20 includes at least three peristaltic tubes 201, but the number of the peristaltic tubes 201 may be three or more, and is not limited to the number of the peristaltic tubes 201 provided in this embodiment as long as the content space of the peristaltic pump allows.
Referring to fig. 10 and 11, in the present embodiment, the number of the peristaltic tubes 201 is three, three peristaltic tubes 201 are integrally formed, the peristaltic tubes 201 are arranged side by side, every two peristaltic tubes 201 are connected at equal intervals, and a connecting portion 203 is provided between the peristaltic tubes 201. The width of the connecting part 203, namely the distance between every two external diameters of the peristaltic tubes 201 is 25-30% of the internal diameter of the peristaltic tubes 201, the thickness of the connecting part 203 is 20-25% of the internal diameter of the peristaltic tubes 201, and the internal diameter of the peristaltic tubes 201 is 0.8-1.0 mm.
With reference to fig. 10 and 11, in this embodiment, the inner diameter of the peristaltic tube 201 should not be too large, which cannot achieve the micro-pumping effect, and the setting of the outer diameter 2.4 to 2.6 times of the inner diameter can ensure that the roller 302 can sufficiently press the peristaltic tube 201, and ensure that the peristaltic tube 201 is not easily crushed by the roller 302 and the peristaltic tube 201 can rapidly rebound; the arrangement of the connecting part 203 between the peristaltic tubes 201 can ensure that the distance between every two adjacent peristaltic tubes 201 is consistent, and the rollers 302 can play a fixing role when the peristaltic tubes 201 are extruded, when the thickness of the connecting part 203 is too large, the rollers 302 cannot completely crush the peristaltic tubes 201, liquid cannot be pumped out in a vacuum pumping mode, and when the thickness of the connecting part 203 is too small, the connection between the peristaltic tubes 201 is unstable, and the peristaltic tubes 201 move; when the width of the connecting portion 203 (i.e., the tube pitch of the peristaltic tubes 201) is set too large, the peristaltic tubes 201 may shift, and the overall volume of the peristaltic pump may become too large, and when the width of the connecting portion 203 is set too small, two adjacent peristaltic tubes 201 may collide with each other even if slightly deformed, and thus, a sufficient space may not be provided for extrusion.
Compared with the output mode of the adapter with one more peristaltic tube 201 matched with one more peristaltic tube in the prior art, namely, the single peristaltic tube 201 enters the inner wall of the lower cover 102 of the peristaltic pump from the rolling direction of the roller 302, the position of the peristaltic tube 201 out of the inner wall of the shell is connected with the adapter with one more peristaltic tube, the multiple peristaltic tubes 201 can be prevented from moving to a certain extent, and the multi-tube pumping effect can be realized, but because the technical designer in the field considers the application field of the product of the invention and the pumped liquid has certain viscosity, when the adapter with one more peristaltic tube is adopted for pumping, the liquid can be subjected to the resistance from the inner walls of different branches of the adapter when the liquid is divided, the pumped liquid is easy to have different sizes of the outlets, and the accurate equal-quantity output effect can not be realized, according to the invention, a mode that a plurality of rollers 302 alternately extrude three peristaltic tubes arranged side by side is adopted, so that liquid is independently pumped out through each peristaltic tube 201, the problem that the liquid cannot be pumped out in a multi-tube equivalent manner due to viscosity can be overcome, and the effect of accurately pumping out in a multi-tube equivalent manner is realized.
As shown in fig. 2 and 3, in the present embodiment, the peristaltic pump housing 10 includes a peristaltic pump upper cover 101 and a peristaltic pump lower cover 102, and the peristaltic pump upper cover 101 and the peristaltic pump lower cover 102 are fastened to form the peristaltic pump housing 10 having a cavity. The peristaltic pump upper cover 101 is provided with a round hole for mounting the gear shaft 303, the round hole is in interference fit with the gear shaft 303, and the peristaltic pump lower cover 102 comprises two peristaltic pipe clamp mounting parts 1021 and a cylindrical protrusion 1022. The two peristaltic pipe clamp installation parts 1021 are respectively arranged at the position where the peristaltic pipe 201 enters and leaves the peristaltic pump shell 10, the two peristaltic pipe clamp installation parts 1021 are used for installing the peristaltic pipe clamps 202 to prevent the peristaltic pipe 201 in the peristaltic pump shell 10 from shifting or dislocating, the cylindrical protrusion 1022 is arranged in the lower cover 102 of the peristaltic pump, and the lower turntable 301 is rotatably sleeved on the cylindrical protrusion 1022; the first gear 403 is sleeved on a shaft of the gear shaft 303 to rotate, one end of the gear shaft 303, which is far away from the first gear 403, is inserted into a central hole of the cylindrical protrusion 1022, the lower rotary disc 301 is sleeved on the cylindrical protrusion 1022 and rotates around the axial lead of the cylindrical protrusion, the axis of the circular hole of the peristaltic pump upper cover 101 is overlapped with the axis of the cylindrical protrusion 1022, and the central hole of the cylindrical protrusion 1022 is in interference fit with the gear shaft 303, so that the lower rotary disc 301 and the first gear 403 can rotate around the gear shaft 303 at the same time, and the roller 302 is ensured to stably extrude the peristaltic tube 201.
In this embodiment, as shown in fig. 2 to 4, two peristaltic tube clamps 202 are disposed on the peristaltic tube 201, the two peristaltic tube clamps 202 are respectively mounted in the two peristaltic tube clamp mounting portions 1021 to limit the moving range of the peristaltic tube 201 when entering and leaving the peristaltic pump housing 10, and to guide the extending direction of the peristaltic tube 201, and the peristaltic tube 201 passes through the peristaltic tube clamps 202 to be limited to prevent the peristaltic tube 201 entering the interior of the peristaltic pump housing 10 from shifting or dislocating.
Further, in this embodiment, as shown in fig. 4, the peristaltic pipe clamp 202 is U-shaped, and the two sides of the interior of the peristaltic pipe clamp 202 are provided with the semi-circular grooves 2022, the opening of the peristaltic pipe clamp 202 is provided with a fastening structure 2021, when the fastening structure 2021 is fastened, the semi-circular grooves 2022 on the two sides of the peristaltic pipe clamp 202 are closed to form a through hole for clamping the peristaltic pipe 201, an outer diameter of the peristaltic pipe 201 is 0.05mm to 0.1mm larger than an inner diameter of the through hole formed when the fastening structure 2021 is fastened, an inner diameter of the through hole formed by the two semi-circular grooves 2022 is in interference fit with an outer diameter of the peristaltic pipe 201 when closed, so as to ensure that the peristaltic pipe 201 is clamped by the peristaltic pipe clamp 202, and the peristaltic pipe clamp 201 cannot be crushed, the peristaltic pipe clamp 202 is provided with the raised ribs 2023 at a position corresponding to the connection portion 203, and when the fastening structure 2021 is closed, the raised ribs 2023 compress the connection portion 203.
Referring to fig. 6, 7 and 8, in addition, a first cylindrical protrusion 4031 is provided on a surface of the first gear 403 opposite to the lower turntable 301, the lower turntable 301 is provided with a second cylindrical protrusion 3012 on a surface opposite to the first gear 403, the position of the first cylindrical protrusion 4031 is coaxial with the position of the second cylindrical protrusion 3012, two ends of the roller 302 are respectively provided with openings matched with the first cylindrical protrusion 4031 and the second cylindrical protrusion 3012, the first cylindrical protrusion 4031 and the second cylindrical protrusion 3012 are respectively inserted into the openings at two ends of the roller 302 for installation, the openings at two ends of the roller 302 are in clearance fit with the first cylindrical protrusion 4031 and the second cylindrical protrusion 3012, so that the roller 302 can revolve under the driving of the synchronous rotation of the lower turntable 301 and the first gear, and can simultaneously revolve relative to the first cylindrical protrusion 4031, 4031, The second cylindrical protrusion 3012 rotates on its axis.
In this embodiment, because a friction force exists between the roller 302 and the peristaltic tube 201, when the roller 302 rolls the peristaltic tube 201, a tensile force in a circumferential direction is generated on the peristaltic tube 201, and a long-term stress may cause displacement of the peristaltic tube 201, resulting in deformation of the peristaltic tube 201, on one hand, the peristaltic tube 201 can be fixed by the arrangement of the peristaltic tube clamp 202, so that the peristaltic tube 201 does not have integral float when the pump is running and the peristaltic tube 201 moves and accumulates in a rolling direction, and finally falls off, thereby ensuring that the volumes of liquids pumped by the peristaltic tubes 201 are the same; on the other hand, through the clearance fit design of the roller 302, the first cylindrical protrusion 4031 and the second cylindrical protrusion 3012, the roller 302 can be ensured to rotate around the axial lead of the first cylindrical protrusion 4031 and the second cylindrical protrusion 3012 while pressing the peristaltic tube 201 around the gear shaft 303, the roller rotates around the axial lead of the first cylindrical protrusion and the second cylindrical protrusion to form rolling friction, the roller can be ensured to be uniformly and stably pressed on the peristaltic tube while the friction force between the roller and the peristaltic tube is reduced, the peristaltic tube is prevented from being stretched and deformed, so that the function of the peristaltic pump is damaged, and stable pumping of liquid is realized.
With continued reference to fig. 2 and 3, in the present embodiment, the motor 50 is connected to the lower rotary plate 301 of the peristaltic assembly 30 through a transmission assembly 40 to drive the lower rotary plate 301 to rotate around the gear shaft 303, so as to drive the rollers 302 to revolve around the gear shaft 303 and rotate around the axial lines of the first cylindrical protrusion 4031 and the second cylindrical protrusion 3012, so that at least one roller 302 simultaneously presses the three peristaltic tubes 201 to pump out the liquid in the peristaltic tubes 201. In this embodiment, the two rollers 302 rotate to make at least one roller 302 press against the tube set 20 at the same time and the rollers 302 can alternately press three peristaltic tubes 201 to achieve the pumping function.
With continuing reference to fig. 2, 3 and 5, as a further improvement and refinement of the present embodiment, the transmission assembly 40 includes a worm 401 fixedly connected to the output end of the motor 50, a worm wheel 402 and a first gear 403 which are matched with the worm 401, a coaxial second gear 404 is fixed to one end face of the worm wheel 402, and the second gear 404 is in mesh transmission with the first gear 403. The motor 50 drives the worm wheel 402 to rotate through the worm 401, drives the second gear 404 fixed on the same shaft of the worm wheel 402 to rotate, the second gear 404 drives the first gear 403 to rotate, the motor 50 realizes primary speed reduction through the worm 401 and the worm wheel 402, and then realizes secondary speed reduction through the matching of the second gear 404 and the first gear 403, so that speed reduction is realized while power transmission is realized, and the regular rolling of the roller 302 is ensured.
With continued reference to fig. 2 and 3, the peristaltic assembly 30 includes a lower rotary plate 301, at least two rollers 302 are disposed on the lower rotary plate 301, and a rotary cylinder 3011 is disposed at the center of the lower rotary plate 301, and the rotary cylinder 3011 is disposed at an end surface near the first gear 403. As shown in fig. 2, two rollers 302 for pressing three peristaltic tubes 201 are arranged on the lower rotary table 301, the two rollers 302 are arranged between the first gear 403 and the lower rotary table 301 at regular intervals, and the three peristaltic tubes 201 are arranged in parallel and side by side between the inner wall of the lower cover 102 of the peristaltic pump and the outer wall of the rollers 302. As shown in fig. 6 and 7, the lower dial 301 includes a second cylindrical protrusion 3012 disposed on the same side as the rotary cylinder 3011, and the number of the second cylindrical protrusions 3012 corresponds to the number of the rollers 302. It should be noted that the number of the rollers 302 is at least two, that is, the number of the rollers 302 may be set according to actual production requirements, and may be three, four or other numbers, and is not limited to this embodiment, the more the rollers 302, the greater the resistance, the preferred number of the rollers 302 is two, and the two rollers 302 are symmetrically arranged, and the joint section between the peristaltic tube 201 and the inner wall of the lower cover 102 of the peristaltic pump, which is matched with the arrangement of the two rollers 302, should be greater than 180 °, so as to ensure that at least one roller 302 rolls the peristaltic tube no matter whether the lower turntable 301 and the first gear 403 rotate synchronously at any angle.
Referring to fig. 7 and 8, a first limiting portion is disposed on one end surface of the first gear 403, the first limiting portion includes a limiting cylinder 4032 and a protrusion 4033 disposed on a lower edge of the limiting cylinder 4032, the second limiting portion includes a rotating cylinder 3011 and a recess 3013 formed on the rotating cylinder 3011, and the protrusion 4033 and the recess 3013 are fixed in a matching manner, so that the first gear 403 drives the lower turntable 301 to rotate synchronously. Through the transmission design, the first gear 403 and the lower turntable 301 are directly embedded to transmit power, so that the situation that the transmission is unstable or even fails due to the fact that the roller 302, the first cylindrical protrusion 4031 and the second cylindrical protrusion 3012 slip or jump in transmission is avoided, the working reliability of the peristaltic pump is enhanced, and the effect of equivalent output is ensured.
Three peristaltic tubes 201 of the peristaltic pump provided in this embodiment are all disposed between the inner wall of the peristaltic pump housing 10 and the outer wall of the roller 302, the motor 50 drives the lower rotary table 301 of the peristaltic assembly 30 to rotate so that the two rollers 302 disposed between the lower rotary table 301 and the first gear 403 rotate around the gear shaft 303, and then the roller 302 is driven to rotate relative to the inner wall of the peristaltic pump housing 10 to simultaneously extrude the three peristaltic tubes 201, thereby simultaneously controlling the plurality of peristaltic tubes 201 to spray or transport liquid, and no longer needing to set a peristaltic pump for each peristaltic tube 201 respectively so that the peristaltic pump has a compact structure.
As a further improvement and refinement of the present embodiment, as shown in fig. 2 and fig. 3, the peristaltic pump further includes an adapter 60 assembly for communicating the soft liquid storage bag with the peristaltic tube 201, where the adapter 60 assembly includes an adapter 604 rotationally fixed with the soft liquid storage bag, an adapter cover 601 connected with the adapter 604, and a sealing ring 602 disposed between the adapter 604 and the adapter cover 601. The liquid storage soft bag is deformed under the vacuum-pumping condition to ensure that the liquid can be pumped out, the switching cover 601 embedded with three metal tubes 603 can enable the liquid to form three liquid inlet channels at an inlet, and an atomizing nozzle 70 is connected at an outlet of the peristaltic tube 201.
As a further improvement and refinement of the embodiment, at least three metal tubes 603 are embedded in the adapter cover 601, the head ends of the peristaltic tubes 201 are connected to the adapter cover 601 through the one-to-one corresponding metal tubes 603, the tube bodies of the peristaltic tubes 201 are arranged side by side along the inner wall of the lower cover 102 of the peristaltic pump, the peristaltic tubes 201 are respectively connected to each nozzle outside the peristaltic pump housing, the tube clamp positions are designed in parallel, the peristaltic tube 201 enters the arc-shaped inner wall of the lower cover 102 of the peristaltic pump from the soft liquid storage bag and then is pumped out to the atomizing nozzle 70 to be coherent and smooth, so that the phenomenon that the pumping resistance of the liquid in the peristaltic tube 201 is increased due to excessive bending of the peristaltic tube 201 in Chinese patent for the electrostatic atomizer of the liquid disclosed in application number CN201880041601.3 to influence the effect of equivalent output is avoided, meanwhile, the main body part of the peristaltic tube 201 is arranged in a semicircular arc mode, so that the extrusion area of each roller 302 on the peristaltic tube 201 can be ensured to be as large as possible, and the pumping efficiency can be ensured.
In this embodiment, the rotation of the roller 302 in the forward and reverse directions can be realized by controlling the forward and reverse rotation of the motor 50, so that the pumping and returning operations of the peristaltic tube 201 are realized, and the liquid pumped by the product of the present invention has certain viscosity, so that the liquid staying in the peristaltic tube 201 for a long time is easy to harden to cause the blockage of the pipeline, and the liquid staying in the pipeline is returned to the soft storage bag by the returning operation, and on the other hand, the liquid staying in the peristaltic tube 201 can be prevented from overflowing from the nozzle to cause the waste or pollution of the liquid.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A peristaltic pump with multiple pipes for conveying liquid in equal quantity comprises a peristaltic pump shell, and a motor, a transmission assembly, a peristaltic assembly and a pipe set for pumping liquid which are arranged in the peristaltic pump shell, and is characterized in that the pipe set at least comprises three peristaltic pipes, wherein the peristaltic pipes are arranged side by side, and every two peristaltic pipes are connected at equal intervals; the transmission assembly comprises a gear shaft and a first gear, the gear shaft is fixed inside the peristaltic pump shell, the first gear is fixedly arranged in the gear shaft in a penetrating manner and rotates around the shaft, a first limiting part is arranged on one end face of the first gear, the peristaltic assembly comprises a lower turntable, at least two rollers arranged on the lower turntable and a rotating cylinder arranged at the center of the lower turntable, and a second limiting part matched with the first limiting part is arranged on the end face of the rotating cylinder close to the first gear to realize synchronous rotation of the first gear and the lower turntable; at least two rollers are arranged between the first gear and the lower rotary table at equal intervals, the pipe group is arranged between the inner wall of the peristaltic pump shell and the outer wall of the rollers, the motor drives the lower rotary table to rotate through a transmission assembly, so that at least one roller simultaneously presses the pipe group and a plurality of rollers can alternately press the pipe group, and liquid in the pipe group is pumped out; the peristaltic pump is characterized in that two peristaltic pipe clamps are arranged on the pipe group, and the two peristaltic pipe clamps are respectively arranged at the positions where the pipe group enters and leaves the peristaltic pump shell and are used for fixing the peristaltic pipes in the peristaltic pump shell.
2. The peristaltic pump as claimed in claim 1, wherein the first gear is provided with a first cylindrical protrusion on a surface opposite to the lower rotary plate, the lower rotary plate is provided with a second cylindrical protrusion on a surface opposite to the first gear, the first cylindrical protrusion is coaxial with the second cylindrical protrusion, holes matched with the first cylindrical protrusion and the second cylindrical protrusion are formed at two ends of the roller, and the first cylindrical protrusion and the second cylindrical protrusion are respectively inserted into the holes at two ends of the roller for installation.
3. The peristaltic pump according to claim 2, wherein the roller is driven by the lower rotary table and the first gear to rotate around the gear shaft, and holes formed at two ends of the roller are in clearance fit with the first cylindrical protrusion and the second cylindrical protrusion respectively, so that the roller can rotate relative to the axis of the first cylindrical protrusion and the axis of the second cylindrical protrusion respectively when rolling the peristaltic tube.
4. The peristaltic pump according to claim 1, wherein the inner diameter of the peristaltic tube ranges from 0.8mm to 1.0mm, a connecting portion is arranged between the peristaltic tubes, the width of the connecting portion, namely the distance between every two peristaltic tubes, is 25-30% of the inner diameter of the peristaltic tubes, and the thickness of the connecting portion is 20-25% of the inner diameter of the peristaltic tubes.
5. The peristaltic pump according to claim 1, wherein the peristaltic tube clamp is U-shaped, the two sides of the interior of the peristaltic tube clamp are provided with semi-arc grooves, a buckling structure is arranged at an opening of the U-shaped peristaltic tube clamp, when the buckling structure is buckled, the semi-arc grooves on the two sides of the peristaltic tube clamp are closed to form a through hole for clamping the peristaltic tube, the outer diameter of the peristaltic tube is 0.05 mm-0.1 mm larger than the inner diameter of the through hole formed when the buckling structure is buckled, the tube clamp is provided with a protruding rib at a position corresponding to the connecting portion, and when the buckling structure is closed, the protruding rib compresses the connecting portion.
6. The peristaltic pump of claim 1, wherein the first limiting portion includes a limiting cylinder and a protrusion disposed on a lower edge of the limiting cylinder, and the second limiting portion includes a rotating cylinder and a recess formed on the rotating cylinder, and the protrusion is engaged with the recess to allow the first gear to drive the lower rotor to rotate synchronously around the gear shaft.
7. The peristaltic pump according to claim 1, wherein the peristaltic pump housing comprises an upper peristaltic pump cover and a lower peristaltic pump cover, the upper peristaltic pump cover and the lower peristaltic pump cover are buckled to form the peristaltic pump housing with a cavity, the upper peristaltic pump cover is provided with a round hole for mounting a gear shaft, the round hole is in interference fit with the gear shaft, the lower peristaltic pump cover comprises two peristaltic pipe clamp mounting parts and a cylindrical protrusion, and the two peristaltic pipe clamp mounting parts are respectively arranged at positions where the pipe set enters and leaves the peristaltic pump housing; the cylinder is protruding to be set up in the peristaltic pump lower cover, the carousel cover is in can wind in the cylinder is protruding the protruding axial lead of cylinder rotates, the gear shaft is kept away from the one end of first gear injects the bellied centre bore of cylinder, the round hole of peristaltic pump upper cover the axle center with the bellied axle center coincidence of cylinder, the bellied centre bore of cylinder and gear shaft interference fit, two the peristaltic pipe clamp installation department is used for installing the peristaltic pipe clamp and prevents to be located inside the peristaltic pump casing the drunkenness or dislocation take place for the nest of tubes.
8. The peristaltic pump of claim 7, further comprising an adapter assembly for communicating the soft package of reservoir fluid with the peristaltic tube, wherein the adapter assembly comprises an adapter rotationally fixed with the soft package of reservoir fluid, an adapter cover connected with the adapter, and a sealing ring disposed between the adapter and the adapter cover.
9. The peristaltic pump according to claim 8, wherein at least three metal tubes are embedded in the adapter cover, the head ends of the peristaltic tubes are connected to the adapter cover through the metal tubes in a one-to-one correspondence, the tube bodies of the peristaltic tubes are arranged side by side between the inner wall of the lower cover of the peristaltic pump and the outer wall of the roller, and the peristaltic tubes are respectively connected to the nozzles outside the lower cover of the peristaltic pump.
10. A peristaltic pump as claimed in claim 1, wherein the transmission assembly further comprises a worm fixedly connected to the output end of the motor, a worm wheel engaged with the worm, and a second gear coaxially arranged on an end face of the worm wheel, wherein the second gear is engaged with the first gear to realize speed reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111624958.4A CN114278542B (en) | 2021-12-28 | 2021-12-28 | Peristaltic pump for transporting liquid in equal quantity through multiple tubes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111624958.4A CN114278542B (en) | 2021-12-28 | 2021-12-28 | Peristaltic pump for transporting liquid in equal quantity through multiple tubes |
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| CN114278542A true CN114278542A (en) | 2022-04-05 |
| CN114278542B CN114278542B (en) | 2023-11-21 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5358011A (en) * | 1988-07-05 | 1994-10-25 | British Telecommunications Public Limited Company | Optical fibre ducts having inner layer suited to blown fibre installation and a fire retardant outer layer |
| US5846061A (en) * | 1996-11-08 | 1998-12-08 | Board Of Trustees Of Michigan State University | Peristaltic metering pump |
| US20040141863A1 (en) * | 2002-10-11 | 2004-07-22 | Seiko Epson Corporation | Tube pump, tube for tube pump and liquid ejecting apparatus |
| US20070104599A1 (en) * | 2003-09-26 | 2007-05-10 | Stephan Michels | Peristaltic pump |
| CN101978166A (en) * | 2008-02-22 | 2011-02-16 | 麦德托尼克艾克斯欧麦德股份有限公司 | Method and system for loading of tubing into a pumping device |
| CN202971123U (en) * | 2012-10-26 | 2013-06-05 | 北京众驰伟业科技发展有限公司 | Elastic pressure type bi-directional peristaltic pump system |
| US20130315763A1 (en) * | 2012-05-24 | 2013-11-28 | Cook Medical Technologies Llc | Peristaltic pump tubing securing system |
| CN105840471A (en) * | 2016-05-04 | 2016-08-10 | 嘉兴栋马童车有限公司 | Peristaltic pump |
| CN106121979A (en) * | 2016-08-16 | 2016-11-16 | 浙江泰林生物技术股份有限公司 | A kind of conduit clamping and fixing device |
| CN107725343A (en) * | 2017-11-09 | 2018-02-23 | 四川君汇科技有限公司 | Combined peristaltic pump and combined positioning and mounting method |
| KR101874808B1 (en) * | 2017-07-21 | 2018-08-06 | 엘븐트리 주식회사 | Non-pulsating peristaltic pump |
| 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 |
| CN109372731A (en) * | 2017-04-06 | 2019-02-22 | 珠海意动智能装备有限公司 | Peristaltic pump |
| CN208831209U (en) * | 2018-09-11 | 2019-05-07 | 宁波佳音机电科技股份有限公司 | Wriggling Pump Head and peristaltic pump |
-
2021
- 2021-12-28 CN CN202111624958.4A patent/CN114278542B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5358011A (en) * | 1988-07-05 | 1994-10-25 | British Telecommunications Public Limited Company | Optical fibre ducts having inner layer suited to blown fibre installation and a fire retardant outer layer |
| US5846061A (en) * | 1996-11-08 | 1998-12-08 | Board Of Trustees Of Michigan State University | Peristaltic metering pump |
| US20040141863A1 (en) * | 2002-10-11 | 2004-07-22 | Seiko Epson Corporation | Tube pump, tube for tube pump and liquid ejecting apparatus |
| US20070104599A1 (en) * | 2003-09-26 | 2007-05-10 | Stephan Michels | Peristaltic pump |
| CN101978166A (en) * | 2008-02-22 | 2011-02-16 | 麦德托尼克艾克斯欧麦德股份有限公司 | Method and system for loading of tubing into a pumping device |
| US20130315763A1 (en) * | 2012-05-24 | 2013-11-28 | Cook Medical Technologies Llc | Peristaltic pump tubing securing system |
| CN202971123U (en) * | 2012-10-26 | 2013-06-05 | 北京众驰伟业科技发展有限公司 | Elastic pressure type bi-directional peristaltic pump system |
| CN105840471A (en) * | 2016-05-04 | 2016-08-10 | 嘉兴栋马童车有限公司 | Peristaltic pump |
| CN106121979A (en) * | 2016-08-16 | 2016-11-16 | 浙江泰林生物技术股份有限公司 | A kind of conduit clamping and fixing device |
| CN109372731A (en) * | 2017-04-06 | 2019-02-22 | 珠海意动智能装备有限公司 | Peristaltic pump |
| KR101874808B1 (en) * | 2017-07-21 | 2018-08-06 | 엘븐트리 주식회사 | Non-pulsating peristaltic pump |
| CN107725343A (en) * | 2017-11-09 | 2018-02-23 | 四川君汇科技有限公司 | Combined peristaltic pump and combined positioning and mounting method |
| 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 |
| CN208831209U (en) * | 2018-09-11 | 2019-05-07 | 宁波佳音机电科技股份有限公司 | Wriggling Pump Head and peristaltic pump |
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|---|---|
| CN114278542B (en) | 2023-11-21 |
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