阅读说明：本技术 一种蠕动泵 (Peristaltic pump ) 是由 张捷挺 于美华 于 2020-08-26 设计创作，主要内容包括：本发明涉及的一种蠕动泵包括壳体、端盖、转架与至少两组滚轮组,每一滚轮组包括至少两个滚轮,垂直于滚轮的回转轴线的平面为第一投影面,连接每一滚轮组的每一滚轮投影的圆心的弧线为第一圆弧,每一滚轮组的滚轮于第一圆弧均匀布置；蠕动泵还包括输入管、输出管与多根输送管,输送管位于壳体内且数量不少于两根,输送管沿滚轮的回转轴线均匀布置,输送管的数量对应于每一滚轮组的滚轮的数量。每一滚轮组的滚轮于第一圆弧均匀布置,从而使每一滚轮组的滚轮相互错开,进而在单根输送管出现脉冲流的情况下,通过不同软输送管的脉冲流叠加而保证流体的流量平稳,保证蠕动泵的工作稳定性。(The invention relates to a peristaltic pump which comprises a shell, an end cover, a rotating frame and at least two groups of roller groups, wherein each roller group comprises at least two rollers, a plane perpendicular to the rotation axis of the rollers is a first projection plane, an arc line connecting the center of a circle of each roller projection of each roller group is a first arc, and the rollers of each roller group are uniformly arranged on the first arc; the peristaltic pump still includes input tube, output tube and many conveyer pipes, and the conveyer pipe is located the casing and the quantity is no less than two, and the conveyer pipe is evenly arranged along the axis of revolution of gyro wheel, and the quantity of conveyer pipe corresponds to the quantity of the gyro wheel of each roller train. The rollers of each roller group are uniformly arranged in the first circular arc, so that the rollers of each roller group are staggered, the flow of fluid is ensured to be stable through the superposition of pulse flows of different soft conveying pipes under the condition that the pulse flows occur in a single conveying pipe, and the working stability of the peristaltic pump is ensured.)

1. A peristaltic pump comprising a housing and an end cap removably fitted to the housing, characterized in that:

the peristaltic pump also comprises a rotating frame and at least two groups of roller groups, each group of roller comprises at least two rollers, and the roller groups are assembled on the rotating frame;

the plane perpendicular to the rotation axis of the roller is a first projection plane, the projection direction parallel to the rotation axis of the roller is a first projection direction, the roller projection of each roller group on the first projection plane along the first projection direction is circular, the arc connecting the center of circle of each roller projection of each roller group on the first projection plane is a first arc, the first arc and the rotating frame are coaxially arranged, and the rollers of each roller group are uniformly arranged on the first arc;

the peristaltic pump further comprises an input pipe, an output pipe and conveying pipes, wherein the input pipe and the output pipe penetrate through the shell respectively, the conveying pipes are located in the shell, the number of the conveying pipes is not less than two, the conveying pipes are arranged uniformly along the rotary axis of the rollers, one end of each conveying pipe is connected with the input pipe, the other end of each conveying pipe is connected with the output pipe, and the number of the conveying pipes corresponds to each roller group.

2. A peristaltic pump as claimed in claim 1, wherein:

the quantity of the roller groups is four, the rollers of each roller group are four, and the rotating frame is a cylinder.

3. A peristaltic pump as claimed in claim 2, wherein:

the outer wall of the rotating frame is provided with a positioning device, and each roller is assembled on the positioning device.

4. A peristaltic pump as claimed in claim 3, wherein:

the positioning device comprises a first positioning plate, a second positioning plate, a third positioning plate, a fourth positioning plate and a fifth positioning plate, wherein the first positioning plate, the second positioning plate, the third positioning plate, the fourth positioning plate and the fifth positioning plate are sequentially arranged along the rotary axis of the rotary frame.

5. A peristaltic pump as claimed in claim 4, wherein:

one positioning opening is respectively arranged on the first positioning plate and the fifth positioning plate, and two positioning openings are respectively arranged on the second positioning plate, the third positioning plate and the fourth positioning plate.

6. A peristaltic pump as claimed in claim 5, wherein:

the rotary frame is characterized in that a partition plate and a transmission column are arranged in the rotary frame, the transmission column extends from one side of the partition plate to the outer side of the rotary frame along the rotary axis of the rotary frame, a reinforcing plate is arranged on the outer wall of the transmission column, and the reinforcing plate is connected with the inner wall of the rotary frame and the transmission column.

7. A peristaltic pump as claimed in claim 6, wherein:

the shell comprises a first shell and a second shell which are fixedly connected with each other in a detachable mode, the first shell comprises an end plate, an assembling column, an arc plate and a first connecting portion, the assembling column extends to the interior of the first shell from the inner side face of the end plate, the end plate is located at one end of the arc plate, and the first connecting portion is arranged on two sides of the arc plate;

the second casing includes circular arc portion and second connecting portion, the both sides of circular arc portion have been arranged the second connecting portion, the circular arc portion certainly the terminal surface indent of second connecting portion is to the inboard of second casing.

8. A peristaltic pump as claimed in claim 7, wherein:

the assembling column is a cylinder, and the assembling column, the arc plate and the arc part are coaxially arranged;

the peristaltic pump further comprises a motor, the motor is inserted into the assembling column, and a transmission shaft of the motor abuts against the transmission column.

9. A peristaltic pump as claimed in any one of claims 1 to 8, wherein:

the gyro wheel includes wheel portion and axial region, axial region detachably fixed connection in the wheel portion, the axial region rotatably assemble in the revolving rack.

10. A peristaltic pump as claimed in any one of claims 1 to 8, wherein:

the gyro wheel includes wheel portion and axial region, axial region integrated into one piece ground fixed connection in the wheel portion, the axial region rotatably assemble in the revolving rack.

Technical Field

The invention belongs to the technical field of peristaltic pumps, and particularly relates to a peristaltic pump.

Background

At present, peristaltic pumps use resilient hoses to convey the fluid inside the hose by applying a plurality of advancing pressures successively outside the tube by the rotation of a rotating member that rotates rollers to form a closed section that advances forward. The fluid can not contact any machine parts or other objects of the pump body except the pipeline in the pumping process, and the pump has obvious isolation and safety.

The existing peristaltic pump can generate pulse flow of fluid in the pumping process to influence the working stability of the peristaltic pump, and a known solution is to increase the number of rollers along the rotation direction of a rotating part in the pump, such as: the number of rollers in the rotation direction of the rotation member is increased from 4 to 16. However, this solution leads to an increased number of times the hose is pinched and rubbed in the same position during one rotation cycle, thereby reducing the service life of the hose.

Meanwhile, another known solution is to connect a plurality of motors in parallel with the outside of the housing of the peristaltic pump, and the rotation angles of the rotating shafts of the different motors are different to suppress the pulse flow, but this method results in higher production cost of the peristaltic pump, and makes the peristaltic pump have larger volume and inconvenient use.

Disclosure of Invention

The main object of the present invention is to provide a peristaltic pump that guarantees the working stability and reduces the costs.

In order to achieve the main purpose, the peristaltic pump provided by the invention comprises a shell and an end cover, wherein the end cover is detachably assembled on the shell, the peristaltic pump further comprises a rotating frame and at least two groups of roller groups, each group of roller comprises at least two rollers, and the roller groups are assembled on the rotating frame; the plane perpendicular to the rotation axis of the roller is a first projection plane, the projection direction parallel to the rotation axis of the roller is a first projection direction, the roller projection of each roller group on the first projection plane along the first projection direction is circular, the arc line connecting the center of the circle of the projection of each roller group on the first projection plane is a first arc, the first arc and the rotating frame are coaxially arranged, and the rollers of each roller group are uniformly arranged on the first arc; the peristaltic pump still includes input tube, output tube and many conveyer pipes, and the casing is passed respectively to input tube and output tube, and the conveyer pipe is located the casing and quantity is no less than two, and the conveyer pipe evenly arranges along the axis of revolution of gyro wheel, and the one end of every conveyer pipe is connected with the input tube, and the other end is connected with the output tube, and the quantity of conveyer pipe is corresponding to the quantity of the gyro wheel of each roller train.

It can be seen by above-mentioned scheme that the gyro wheel of each roller train evenly arranges in first circular arc to make the gyro wheel of each roller train stagger each other, each gyro wheel extrudes a conveyer pipe respectively, and the conveyer pipe quantity of peristaltic pump corresponds with the gyro wheel quantity of each roller train and arranges, and then under the condition that pulse flow appears in single conveyer pipe, the pulse flow through different soft conveyer pipes stacks and guarantees that fluidic flow is steady, guarantees the job stabilization nature of peristaltic pump.

Preferably, the number of the roller groups is four, the number of the rollers of each roller group is four, and the rotating frame is a cylinder.

Furthermore, the outer wall of the rotating frame is provided with a positioning device, and each roller is assembled on the positioning device.

Furthermore, the positioning device comprises a first positioning plate, a second positioning plate, a third positioning plate, a fourth positioning plate and a fifth positioning plate, wherein the first positioning plate, the second positioning plate, the third positioning plate, the fourth positioning plate and the fifth positioning plate are sequentially arranged along the rotation axis of the rotating frame.

Furthermore, one positioning opening is respectively arranged on the first positioning plate and the fifth positioning plate, and two positioning openings are respectively arranged on the second positioning plate, the third positioning plate and the fourth positioning plate.

Furthermore, be provided with baffle and transmission post in the revolving rack, the transmission post extends from one side of baffle toward the revolving rack outside along the axis of rotation of revolving rack, and the outer wall of transmission post is provided with the reinforcing plate, and the inner wall and the transmission post of revolving rack are connected to the reinforcing plate.

Furthermore, the shell comprises a first shell and a second shell which are fixedly connected with each other in a detachable mode, the first shell comprises an end plate, an assembling column, an arc plate and a first connecting portion, the assembling column extends into the first shell from the inner side face of the end plate, the end plate is located at one end of the arc plate, and the first connecting portion is arranged on two sides of the arc plate; the second casing includes circular arc portion and second connecting portion, and the second connecting portion have been arranged to the both sides of circular arc portion, and the circular arc portion is from the inboard of the terminal surface indent of second connecting portion to the second casing.

Furthermore, the assembling column is a cylinder, and the assembling column, the arc plate and the arc part are coaxially arranged; the peristaltic pump also comprises a motor, the motor is inserted into the assembling column, and a transmission shaft of the motor is abutted to the transmission column.

Further, the roller comprises a wheel portion and a shaft portion, the shaft portion is detachably fixedly connected to the wheel portion, and the shaft portion is rotatably assembled on the rotating frame.

Further, the roller comprises a wheel portion and a shaft portion, the shaft portion is fixedly connected to the wheel portion in an integrated mode, and the shaft portion is rotatably assembled on the rotating frame.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.

FIG. 1 is an exploded view of an embodiment of a peristaltic pump of the present invention.

Fig. 2 is a block diagram of a turret of an embodiment of a peristaltic pump according to the present invention.

FIG. 3 is a block diagram of a first housing of an embodiment of a peristaltic pump of the present invention.

FIG. 4 is a partial block diagram of an embodiment of a peristaltic pump of the present invention

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, the peristaltic pump 100 provided in this embodiment includes a housing and an end cover 1, the end cover 1 is detachably screwed to the housing, the peristaltic pump 100 further includes a rotating frame 2 and at least two roller sets, each roller set includes at least two rollers 3, and the roller sets are assembled to the rotating frame 2. In the present embodiment, the turret 2 is an integrally formed part. The number of the roller groups is four, the rollers 3 of each roller group are four, and the rotating frame 2 is a cylinder.

The plane of the rotation axis of the roller 3 is a first projection plane, the projection direction parallel to the rotation axis of the roller 3 is a first projection direction, each roller 3 of each roller group is circular in the projection of the roller 3 of the first projection plane along the first projection direction, the arc line connecting the center of the circle of the projection of each roller 3 of each roller group on the first projection plane is a first arc, the first arc and the rotating frame 2 are coaxially arranged, and the roller 3 of each roller group is uniformly arranged on the first arc.

Referring to fig. 1 and 2, the outer wall of the rotating frame 2 is provided with a positioning device, and each roller 3 is assembled on the positioning device. The positioning device comprises a first positioning plate 5, a second positioning plate 6, a third positioning plate 7, a fourth positioning plate 8 and a fifth positioning plate 9, the first positioning plate 5, the second positioning plate 6, the third positioning plate 7, the fourth positioning plate 8 and the fifth positioning plate 9 are sequentially arranged along the rotation axis of the revolving rack 2, and each roller set is correspondingly provided with the first positioning plate 5, the second positioning plate 6, the third positioning plate 7, the fourth positioning plate 8 and the fifth positioning plate 9. A location mouth 10 has been arranged respectively to first locating plate 5 and fifth locating plate 9, and two location mouths 10 have been arranged respectively to second locating plate 6, third locating plate 7 and fourth locating plate 8, and each location mouth 10 all rotationally the joint has gyro wheel 3, and each fourth locating plate 8 is connected with one of them fourth locating plate 8 adjacent along the circumference of revolving rack 2.

Be provided with baffle 11 and transmission post 12 in the revolving rack 2, transmission post 12 is the cavity cylinder, and transmission post 12 extends toward the revolving rack 2 outside from one side of baffle 11 along the axis of rotation of revolving rack 2, and the outer wall of transmission post 12 is provided with reinforcing plate 13, and reinforcing plate 13 connects the inner wall and the transmission post 12 of revolving rack 2, and polylith reinforcing plate 13 evenly arranges along the circumference of revolving rack.

Referring to fig. 1 and 3, the casing includes first casing 15 and second casing 16 of mutual detachably fixed connection, first casing 15 and second casing 16 are integrated into one piece, end cover 1 screwed connection is in first casing 15, first casing 15 screwed connection is in second casing 16, first casing 15 includes end plate 17, erection column 18, arc board 19 and first connecting portion 20, erection column 18 is the cylinder, erection column 18, arc board 19 is coaxial arrangement with arc portion, erection column 18 extends to the inside of first casing 15 from the medial surface of end plate 17, end plate 17 is located the one end of arc board 19, first connecting portion 20 has been arranged to the both sides of arc board 19. The number of the first connection portions 20 is two, and the two first connection portions 20 are arranged opposite to each other in the radial direction of the arc plate 19.

The second housing 16 includes an arc portion 21 and a second connecting portion 22, the second connecting portion 22 is disposed on two sides of the arc portion 21, and the arc portion 21 is recessed inward of the end surface of the second connecting portion 22 toward the inner side of the second housing 16.

The number of the second connecting portions 22 is two, and the two second connecting portions are oppositely arranged along the radial direction of the arc portion. A plurality of hollow connecting columns are arranged in each first connecting part, and screws penetrate through the second connecting parts and penetrate into the connecting columns to be fixedly connected with the first shell 15 and the second shell 16 in a detachable mode.

The peristaltic pump 100 further comprises a motor 26, the motor 26 being inserted in the mounting post 18, the drive shaft of the motor 26 abutting against the drive post 12, and screws passing through the plate of the mounting post 18 and through the motor 26 to detachably fix the motor 26 and the first housing 15 to each other.

Preferably, the roller 3 comprises a wheel part and a shaft part, the shaft part is detachably and fixedly connected with the wheel part, the shaft part penetrates through the wheel part, the roller 3 is a split piece, and the shaft part is rotatably assembled on the rotating frame 2; alternatively, the roller 3 includes a wheel portion and a shaft portion, the shaft portion is fixedly connected to the wheel portion in an integrally molded manner, the roller 3 is an integrally molded piece, and the shaft portion is rotatably mounted to the rotating frame 2.

Peristaltic pump 100 still includes input tube 23, output tube 24 and many conveyer pipes 25, and input tube 23 passes the casing respectively with output tube 24, and conveyer pipe 25 is located the casing and quantity is no less than two, and conveyer pipe 25 evenly arranges along the axis of revolution of gyro wheel, and the one end of every conveyer pipe 25 is connected with input tube 23, and the other end is connected with output tube 24, and the quantity of conveyer pipe 25 is corresponding to the quantity of the gyro wheel 3 of each roller train. In the present embodiment, the number of the delivery pipes 25 is four, and the input pipe 23 and the output pipe 24 are both T-shaped pipes.

Referring to fig. 1 to 4, a transmission shaft of a motor drives the rotating frame 2 to rotate through a transmission column 12, and the roller 3 presses the conveying pipe to convey fluid. In each roller train and on first arc, connect a gyro wheel 3 and follow the arc angle A of the arc line of the projected centre of a circle of first plane of projection between two of another gyro wheel 3 that the circumferential distance of revolving rack 2 is nearest 22.5, therefore, the gyro wheel of each roller train evenly arranges in first arc, thereby make the gyro wheel of each roller train stagger each other, each gyro wheel extrudes a conveyer pipe 25 respectively, conveyer pipe 25 quantity of peristaltic pump 100 corresponds with the gyro wheel quantity of each roller train and arranges, and then under the condition that pulse flow appears in single conveyer pipe 25, pulse flow stack through different conveyer pipes 25 guarantees that the flow of fluid in the output tube is steady, guarantee peristaltic pump 100's job stabilization nature, moreover, peristaltic pump 100 need not to connect a plurality of motors in parallel, and reduce production cost, simplify peristaltic pump 100's structure.

Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only the preferred embodiments of the invention have been described above, and the present invention is not limited to the above-described embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.