In-phase peristaltic pump

Abstract

The utility model discloses an in-phase peristaltic pump. A pump cavity, a pipe clamping mechanism, a rotating mechanism and a translation mechanism are arranged on a mounting bedplate; an elastic hose is arranged in the pump cavity, and the pipe clamping mechanism is used for preventing leakage; the rotating mechanism comprises a rotating pipe pressing assembly and a rotating driving assembly, one end of the rotating pipe pressing assembly is connected with the rotating driving assembly, and the other end extends into the pump cavity to extrude the elastic hose; the translation mechanism comprises a translation guide assembly and a translation driving assembly, one end of the translation guide assembly is connected with the rotating mechanism, and the other end is connected with the translation driving assembly; when the peristaltic pump works, the translation guide assembly moves forwards to drive the rotating mechanism to be close to the inner side of the pump cavity, the rotating pipe pressing assembly swings circumferentially and extrudes the elastic hose, and material conveying is achieved; after single-time conveying is completed, the translation guide assembly moves reversely to drive the rotating mechanism to be away from the inner side of the pump cavity, and the rotating pipe pressing assembly rotates to the initial conveying position. The utility model has the advantages of compact structure, high filling precision, long service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid filling pumps, and in particular relates to a same-phase peristaltic pump. Background Art

[0002] A peristaltic pump is a liquid delivery device that can control the flow rate. The peristaltic pump uses a rotating roller to roll an elastic hose. The fluid in the hose moves as the wheel rotates, just like squeezing the hose with two fingers. As the fingers move, the liquid flows.

[0003] The existing peristaltic pump relies on the roller assembly with a rotating device to rotate and roll the hose to discharge the fluid. The rolling extrusion volume of the fluid is controlled by the number of turns or angle of the roller assembly. For each filling, the initial position and the end position of the roller assembly rolling the hose will not be at the same position due to the accumulation of turns or angles. In addition, the elastic recovery of the hose at different positions is also different, making it difficult for the traditional peristaltic pump to achieve the expected repeated filling accuracy. Utility Model Content

[0004] The technical problem to be solved by the utility model is to solve the problem of low repeated filling accuracy of the existing peristaltic pump, and to provide a same-phase peristaltic pump with compact structure, convenient disassembly and assembly, high reliability, high repeated filling accuracy and low cost.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A co-phase peristaltic pump, comprising a mounting plate, on which a pump chamber, a tube clamping mechanism, a rotating mechanism and a translation mechanism are arranged; an elastic hose is arranged inside the pump chamber; the tube clamping mechanism is located at the output end of the elastic hose to prevent dripping; the rotating mechanism comprises a rotating tube pressing assembly and a rotating drive assembly, one end of the rotating tube pressing assembly is connected to the output end of the rotating drive assembly, and the other end of the rotating tube pressing assembly extends into the pump chamber to squeeze the elastic hose; the translation mechanism comprises a translation guide assembly and a translation drive assembly, one end of the translation guide assembly is connected to the rotating mechanism, and the other end of the translation guide assembly is connected to the output end of the translation drive assembly;

[0007] When the peristaltic pump is working, the translational drive assembly drives the translational guide assembly to move forward and drives the rotating mechanism to approach the inner side of the pump chamber. The rotating drive assembly drives the rotating tube pressing assembly to swing in a circle and cooperates with the inner wall of the pump chamber to squeeze the elastic hose to realize material transportation. After completing a single material metering and transportation, the translational drive assembly drives the translational guide assembly to move in the opposite direction and drives the rotating mechanism away from the inner side of the pump chamber. The rotating drive assembly drives the rotating tube pressing assembly to rotate back to the initial transportation position.

[0008] As a further improvement of the present invention, the tube clamping mechanism, the rotating mechanism and the translation mechanism are all connected to an external PLC controller, and the PLC controller is used to control the automatic operation of the tube clamping mechanism, the rotating mechanism and the translation mechanism.

[0009] As a further improvement of the utility model, the mounting platform is also provided with a plurality of limit assemblies for fixing the elastic hose, and the limit assemblies include an elastic pressure rod, a support block, a limit pipe joint and an upper pressure plate; the support block is mounted on the mounting platform, and the upper pressure plate is arranged above the support block, and the elastic pressure rod passes through the mounting platform and the support block in sequence, and is connected and fixed to the upper pressure plate, and the limit pipe joint is arranged between the support block and the upper pressure plate, and the elastic pressure rod is pulled to drive the upper pressure plate to tighten or loosen the limit pipe joint; the input end and the output end of the elastic hose respectively pass through the corresponding limit pipe joints to realize the "U"-shaped arrangement of the elastic hose in the pump chamber.

[0010] As a further improvement of the present invention, the limit assembly also includes a spring, which surrounds the outer circumference of the elastic pressure rod, one end of the spring abuts against the bottom of the mounting plate, and one end of the spring abuts against the end of the elastic pressure rod.

[0011] As a further improvement of the utility model, the tube clamping mechanism includes a tube clamping assembly and a tube clamping motor, one end of the tube clamping assembly is connected to the output end of the tube clamping motor, and the other end of the tube clamping assembly is connected to the output end of the elastic hose to prevent dripping.

[0012] As a further improvement of the utility model, the tube clamping assembly includes: an eccentric cam, a guide block, a guide seat, a tube clamping fixed block and a tube clamping movable block; the tube clamping fixed block and the tube clamping movable block are both arranged on the mounting plate and are respectively located on both sides of the elastic hose, the guide block is fixed on the mounting plate, the tube clamping movable block is connected to the guide seat, and the guide seat is slidably arranged in a square groove on the upper part of the guide block, and the eccentric cam is connected to the output end of the tube clamping motor; under the drive of the tube clamping motor, the eccentric cam rotates and contacts the guide seat to drive the guide seat to move forward and backward in a straight line along the guide block, so as to realize the tube clamping movable block and the tube clamping fixed block clamping or loosening the elastic hose.

[0013] As a further improvement of the utility model, a tube pressing fixing block is provided on the inner side of the pump chamber, the rotary drive assembly includes a rotary motor, the rotary tube pressing assembly includes a roller assembly and a bearing seat, the roller shaft of the roller assembly passes through the bearing seat and is connected to the output end of the rotary motor, the roller assembly is located in the pump chamber, and the roller assembly and the tube pressing fixing block are respectively located on both sides of the elastic hose, and under the drive of the rotary motor, the roller assembly swings in a circle and cooperates with the tube pressing fixing block to squeeze the elastic hose.

[0014] As a further improvement of the utility model, the roller assembly includes a lower pressure plate, a roller and an upper pressure plate, the lower pressure plate and the upper pressure plate are nested on the roller shaft, and multiple rollers are arranged between the lower pressure plate and the upper pressure plate; under the drive of the rotating motor, the roller shaft drives the lower pressure plate and the upper pressure plate to swing in a circle to realize the roller squeezing the elastic hose.

[0015] As a further improvement of the utility model, the bearing includes a deep groove ball bearing and a tapered roller bearing arranged in sequence, a second hole elastic retaining ring is provided at the connection between the bottom of the deep groove ball bearing and the roller shaft, and a first hole elastic retaining ring is provided at the connection between the top of the tapered roller bearing and the bearing seat.

[0016] As a further improvement of the utility model, the translation drive assembly includes a translation motor, and the translation guide assembly includes a connecting block, a guide column, a guide sleeve and a guide fixing seat. The two ends of the connecting block are respectively connected to the bearing seat and the guide column, the guide column passes through the guide sleeve and is connected to the guide fixing seat, and the guide fixing seat is connected to the output end of the translation motor; under the drive of the translation motor, the guide column drives the connecting block and the bearing seat to translate, so as to realize the rotation motor and the roller assembly approaching or moving away from the pressure tube fixing block.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The in-phase peristaltic pump of the utility model forms a compact peristaltic pump main structure by arranging a pump chamber, a tube clamping mechanism, a rotating mechanism and a translation mechanism on a mounting plate; specifically, an elastic hose is arranged inside the pump chamber, and the tube clamping mechanism is arranged at the output end of the elastic hose to prevent fluid dripping during filling; one end of the rotating tube pressing assembly is connected to the output end of the rotating drive assembly, and the other end is extended into the pump chamber to realize hose squeezing; one end of the translation guide assembly is connected to the rotating mechanism, and the other end of the translation guide assembly is connected to the output end of the translation drive assembly to realize the connection between the rotating mechanism and the translation mechanism; when the peristaltic pump is working, the translation drive assembly drives the translation guide assembly to move forward, and drives the rotating mechanism to approach the inner side of the pump chamber, and the rotating mechanism rotates. The driving assembly drives the rotary tube pressing assembly to swing in a circle, and cooperates with the inner wall of the pump chamber to squeeze the elastic hose, thereby realizing material metering and conveying; after completing a single material metering and conveying, the translation driving assembly drives the translation guide assembly to move in the opposite direction, and drives the rotating mechanism away from the inner side of the pump chamber, and at the same time, the rotation driving assembly drives the rotary tube pressing assembly to rotate back to the initial conveying position; the peristaltic pump of the utility model moves the rotary tube pressing assembly away from the inner wall of the pump chamber after each fluid filling, disengaging from the squeezing of the elastic hose, and at the same time, the rotary tube pressing assembly is reset to the initial position before filling through the rotation driving assembly, and the initial position of the tube pressing assembly is the same during the next filling, that is, the rotary tube pressing assembly is reset to zero each time it is filled, which significantly improves the accuracy of repeated filling. At the same time, the elastic hose can also periodically recover elastically, effectively extending the service life of the pump tube and reducing the operating cost of the peristaltic pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structural principle of the same-phase peristaltic pump in a specific embodiment of the utility model after the pump cover is removed;

[0020] Figure 2 for Figure 1 A top view of

[0021] Figure 3 for Figure 1 Left view of

[0022] Figure 4 for Figure 1 A top view of the left and right displacement mechanism with roller groups;

[0023] Figure 5 yes Figure 1 A left view of the device with a roller rotating device;

[0024] Figure 6 It is a schematic diagram of the structural principle of the installation table in a specific embodiment of the utility model;

[0025] Figure 7It is a schematic diagram of the structural principle of the roller rotating device in a specific embodiment of the utility model;

[0026] Figure 8 It is a schematic diagram of the structural principle of the roller assembly in a specific embodiment of the utility model;

[0027] Fig. 9 yes Figure 8 A top view of

[0028] Legend: 1. Rotating motor; 2. Pipe clamping motor; 3. Elastic pressure rod; 4. Spring; 5. Mounting plate; 6. Support block; 7. Joint; 8. Limiting pipe joint; 9. Upper pressure plate; 10. Eccentric cam; 11. Guide block; 12. Guide seat; 13. Pipe clamping fixing block; 14. Roller assembly; 15. Pipe clamping fixing block; 16. Connecting block; 17. Guide column; 18. Guide sleeve; 19. Translation motor; 20. Guide fixing seat; 21. Bearing seat; 22. Pipe clamping movable block; 23. Elastic hose; 24. Elastic retaining ring for the first hole; 25. Deep groove ball bearing; 26. Elastic retaining ring for the second hole; 27. Tapered roller bearing; 28. Pump cover; 29. ​​Roller shaft; 30. Lower pressure plate; 31. Roller; 32. Upper pressure plate. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0030] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] Example

[0033] like Figures 1 to 9 As shown, the in-phase peristaltic pump of the utility model comprises a mounting plate 5, on which a pump chamber, a tube clamping mechanism, a rotating mechanism and a translation mechanism are arranged. An elastic hose 23 is arranged inside the pump chamber; the tube clamping mechanism is located at the output end of the elastic hose 23 to prevent dripping. The rotating mechanism comprises a rotating tube pressing assembly and a rotating drive assembly, one end of the rotating tube pressing assembly is connected to the output end of the rotating drive assembly, and the other end of the rotating tube pressing assembly extends into the pump chamber to squeeze the elastic hose 23. The translation mechanism comprises a translation guide assembly and a translation drive assembly, one end of the translation guide assembly is connected to the rotating mechanism, and the other end of the translation guide assembly is connected to the output end of the translation drive assembly.

[0034] When the peristaltic pump is working, the translation drive assembly drives the translation guide assembly to move forward and drives the rotating mechanism to approach the inner side of the pump chamber. The rotating drive assembly drives the rotating tube pressing assembly to swing in a circle and cooperates with the inner wall of the pump chamber to squeeze the elastic hose 23 to realize material transportation. After completing a single material metering and transportation, the translation drive assembly drives the translation guide assembly to move in the opposite direction and drives the rotating mechanism away from the inner side of the pump chamber. The rotating drive assembly drives the rotating tube pressing assembly to rotate back to the initial transportation position.

[0035] In this embodiment, the peristaltic pump moves the rotary tube pressing assembly away from the inner wall of the pump cavity after each fluid filling, disengaging the squeezing of the elastic hose 23, and at the same time, the rotary tube pressing assembly is reset to the initial position before filling through the rotary drive assembly. The initial position of the tube pressing assembly is the same during the next filling, that is, the rotary tube pressing assembly is reset to zero each time the filling is completed, which significantly improves the accuracy of repeated filling. At the same time, the elastic hose 23 can also periodically recover elasticity, effectively extending the service life of the pump tube and reducing the operating cost of the peristaltic pump.

[0036] In this embodiment, the tube clamping mechanism, the rotating mechanism and the translation mechanism are all connected to an external PLC controller, and the PLC controller is used to control the automatic operation of the tube clamping mechanism, the rotating mechanism and the translation mechanism to improve the accuracy of filling control.

[0037] like Figures 1 to 5As shown, the mounting plate 5 is also provided with a limit assembly for fixing the elastic hose 23, and the limit assemblies are symmetrically arranged on the mounting plate 5 in pairs. The limit assembly includes an elastic pressure rod 3, a support block 6, a limit pipe joint 8 and an upper pressing plate 9. The support block 6 is installed and fixed on the mounting plate 5, and the upper pressing plate 9 is arranged above the support block 6. After the elastic pressure rod 3 passes through the mounting plate 5 and the support block 6 in sequence, it is connected and fixed with the upper pressing plate 9. The limit pipe joint 8 is arranged between the support block 6 and the upper pressing plate 9. By pulling the elastic pressure rod 3, the upper pressing plate 9 is driven to press or loosen the limit pipe joint 8, so that the limit pipe joint 8 can be disassembled and assembled. The input end and the output end of the elastic hose 23 respectively pass through the corresponding limit pipe joint 8, so that the elastic hose 23 is arranged in a "U" shape in the pump chamber.

[0038] like Figure 4 As shown, the mounting plate 5 is also provided with a joint 7, which is connected to the elastic hose 23 to realize the material inlet and outlet of the pipeline pump.

[0039] like Figure 3 and Figure 5 As shown, the limit assembly also includes a spring 4, which surrounds the outer circumference of the elastic pressure rod 3, one end of the spring 4 abuts against the bottom of the mounting plate 5, and one end of the spring 4 abuts against the end of the elastic pressure rod 3. The spring 4 assists the elastic pressure rod 3 to extend and retract, so as to improve the stability of the upper pressure plate 9 in pressing or releasing the limit pipe joint 8.

[0040] In this embodiment, the tube clamping mechanism includes a tube clamping assembly and a tube clamping motor 2, one end of the tube clamping assembly is connected to the output end of the tube clamping motor 2, and the other end of the tube clamping assembly is connected to the output end of the elastic hose 23 to prevent dripping.

[0041] like Figures 1 to 4 As shown, the tube clamping assembly includes: an eccentric cam 10, a guide block 11, a guide seat 12, a tube clamping fixed block 13 and a tube clamping movable block 22. The tube clamping fixed block 13 and the tube clamping movable block 22 are both arranged on the mounting plate 5 and are respectively located on both sides of the elastic hose 23. The guide block 11 is fixed on the mounting plate 5. The tube clamping movable block 22 is connected to the guide seat 12, and the guide seat 12 is slidably connected to the square groove on the upper part of the guide block 11 in the form of a slider and a linear slide groove. The eccentric cam 10 is connected to the output end of the tube clamping motor 2. Under the drive of the tube clamping motor 2, the eccentric cam 10 rotates. When the eccentric cam 10 contacts the guide seat 12, the guide seat 12 and the tube clamping movable block 22 can be driven to move forward and backward along the guide block 11 in a straight line, thereby realizing that the tube clamping movable block 22 and the tube clamping fixed block 13 clamp or release the elastic hose 23, so as to achieve the purpose of preventing fluid dripping during filling.

[0042] like Figure 1 and Figure 2As shown, a tube pressing fixing block 15 is provided inside the pump cavity, and the tube pressing fixing block 15 and the curved pipe part of the elastic hose 23 are enclosed in the pump cavity by a pump cover 28. The rotary drive assembly includes a rotary motor 1. The rotary tube pressing assembly includes a roller assembly 14 and a bearing seat 21, and a roller shaft 29 of the roller assembly 14 passes through the bearing seat 21 and is connected to the output end of the rotary motor 1. The roller assembly 14 is located in the pump cavity, and the roller assembly 14 and the tube pressing fixing block 15 are respectively located on both sides of the elastic hose 23. Driven by the rotary motor 1, the roller assembly 14 performs a circular swing and cooperates with the tube pressing fixing block 15 to squeeze the elastic hose 23.

[0043] like Figure 8 and Fig. 9 As shown, the roller assembly 14 includes a lower platen 30, a roller 31 and an upper platen 32, wherein the lower platen 30 and the upper platen 32 are nested on the roller shaft 29, and a plurality of rollers 31 are arranged between the lower platen 30 and the upper platen 32. Driven by the rotary motor 1, the roller shaft 29 drives the lower platen 30 and the upper platen 32 to swing in a circle, so that the roller 31 squeezes the elastic hose 23.

[0044] like Figure 5 , Figure 6 and Figure 7 As shown, the bearing includes a deep groove ball bearing 25 and a tapered roller bearing 27 arranged in sequence. A second hole elastic retaining ring 26 is provided at the connection between the bottom of the deep groove ball bearing 25 and the roller shaft 29, and a first hole elastic retaining ring 24 is provided at the connection between the top of the tapered roller bearing 27 and the bearing seat 21.

[0045] like Figure 1 and Figure 4 As shown, the translation drive assembly includes a translation motor 19, and the translation guide assembly includes a connection block 16, a guide column 17, a guide sleeve 18 and a guide fixing seat 20. The two ends of the connection block 16 are respectively connected to the bearing seat 21 and the guide column 17, the guide column 17 passes through the guide sleeve 18 and is connected to the guide fixing seat 20, and the guide fixing seat 20 is connected to the output end of the translation motor 19. Driven by the translation motor 19, the guide column 17 drives the connection block 16 and the bearing seat 21 to translate, so as to realize that the rotating motor 1 and the roller assembly 14 are close to or away from the tube pressing fixing block 15.

[0046] At the moment of each filling completion, the translation motor 19 pushes the rotary motor 1 and the roller assembly 14 to move in the opposite direction along the guide sleeve 18 until the roller assembly 14 no longer squeezes the elastic hose 23 together with the tube pressing fixed block 15. After the rotary motor 1 drives the roller assembly 14 to rotate back to the initial position before filling, the translation motor 19 pulls the rotary motor 1 and the roller assembly 14 to move forward along the guide sleeve 18, and the roller assembly 14 squeezes the elastic hose 23 together with the tube pressing fixed block 15, and repeats a new filling operation. During each filling, the initial position of the roller assembly 14 is the same, that is, the roller assembly 14 is reset to zero each time it is filled, which greatly improves the accuracy of repeated filling.

[0047] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the utility model without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A peristaltic pump in phase, characterized in that: The invention comprises a mounting plate (5), on which a pump chamber, a tube clamping mechanism, a rotating mechanism and a translation mechanism are arranged; an elastic hose (23) is arranged inside the pump chamber; the tube clamping mechanism is located at the output end of the elastic hose (23) to prevent leakage; the rotating mechanism comprises a rotating tube pressing assembly and a rotating drive assembly, one end of the rotating tube pressing assembly is connected to the output end of the rotating drive assembly, and the other end of the rotating tube pressing assembly extends into the pump chamber to squeeze the elastic hose (23); the translation mechanism comprises a translation guide assembly and a translation drive assembly, one end of the translation guide assembly is connected to the rotating mechanism, and the other end of the translation guide assembly is connected to the output end of the translation drive assembly; When the peristaltic pump is working, the translation drive assembly drives the translation guide assembly to move forward and drives the rotating mechanism to approach the inner side of the pump chamber. The rotating drive assembly drives the rotating tube pressing assembly to swing in a circle and cooperates with the inner wall of the pump chamber to squeeze the elastic hose (23) to realize material transportation. After completing a single material metering and transportation, the translation drive assembly drives the translation guide assembly to move in the opposite direction and drives the rotating mechanism to move away from the inner side of the pump chamber. The rotating drive assembly drives the rotating tube pressing assembly to rotate back to the initial transportation position.

2. The in-phase peristaltic pump according to claim 1, characterized in that: The tube clamping mechanism, the rotating mechanism and the translation mechanism are all connected to an external PLC controller, and the PLC controller is used to control the automatic operation of the tube clamping mechanism, the rotating mechanism and the translation mechanism.

3. The in-phase peristaltic pump according to claim 2, characterized in that: The mounting platform (5) is also provided with a plurality of limiting components for fixing the elastic hose (23), and the limiting components include an elastic pressure rod (3), a support block (6), a limiting pipe joint (8) and an upper pressure plate (9); the support block (6) is mounted on the mounting platform (5), and the upper pressure plate (9) is arranged above the support block (6); the elastic pressure rod (3) passes through the mounting platform (5) and the support block (6) in sequence, and is connected and fixed to the upper pressure plate (9); the limiting pipe joint (8) is arranged between the support block (6) and the upper pressure plate (9), and the upper pressure plate (9) is driven to tighten or loosen the limiting pipe joint (8) by pulling the elastic pressure rod (3); the input end and the output end of the elastic hose (23) respectively pass through the corresponding limiting pipe joint (8), so that the elastic hose (23) is arranged in a "U" shape in the pump chamber.

4. The in-phase peristaltic pump according to claim 3, characterized in that: The limiting assembly also includes a spring (4), which surrounds the outer circumference of the elastic pressure rod (3), one end of the spring (4) abuts against the bottom of the mounting platform (5), and one end of the spring (4) abuts against the end of the elastic pressure rod (3).

5. The in-phase peristaltic pump according to claim 3, characterized in that: The tube clamping mechanism comprises a tube clamping assembly and a tube clamping motor (2), one end of the tube clamping assembly is connected to the output end of the tube clamping motor (2), and the other end of the tube clamping assembly is connected to the output end of the elastic hose (23) to prevent dripping.

6. The in-phase peristaltic pump according to claim 5, characterized in that: The tube clamping assembly comprises an eccentric cam (10), a guide block (11), a guide seat (12), a tube clamping fixed block (13) and a tube clamping movable block (22); the tube clamping fixed block (13) and the tube clamping movable block (22) are both arranged on a mounting platform (5) and are respectively located on both sides of an elastic hose (23); the guide block (11) is fixed on the mounting platform (5); the tube clamping movable block (22) is connected to the guide seat (12), and the guide seat (12) is slidably arranged in a square groove on the upper part of the guide block (11); the eccentric cam (10) is connected to the output end of a tube clamping motor (2); under the drive of the tube clamping motor (2), the eccentric cam (10) rotates and contacts the guide seat (12), so as to drive the guide seat (12) to move forward and backward linearly along the guide block (11), so as to realize that the tube clamping movable block (22) and the tube clamping fixed block (13) clamp or release the elastic hose (23).

7. The in-phase peristaltic pump according to claim 6, characterized in that: A tube pressing fixing block (15) is provided inside the pump chamber, the rotary drive assembly comprises a rotary motor (1), the rotary tube pressing assembly comprises a roller assembly (14) and a bearing seat (21), a roller shaft (29) of the roller assembly (14) passes through the bearing seat (21) and is connected to an output end of the rotary motor (1), the roller assembly (14) is located in the pump chamber, and the roller assembly (14) and the tube pressing fixing block (15) are respectively located on both sides of the elastic hose (23), and under the drive of the rotary motor (1), the roller assembly (14) performs a circular swing and cooperates with the tube pressing fixing block (15) to squeeze the elastic hose (23).

8. The in-phase peristaltic pump according to claim 7, characterized in that: The roller assembly (14) comprises a lower pressure plate (30), a roller (31) and an upper pressure plate (32); the lower pressure plate (30) and the upper pressure plate (32) are nested on a roller shaft (29); a plurality of rollers (31) are arranged between the lower pressure plate (30) and the upper pressure plate (32); under the drive of a rotating motor (1), the roller shaft (29) drives the lower pressure plate (30) and the upper pressure plate (32) to swing in a circle, so that the roller (31) squeezes the elastic hose (23).

9. The in-phase peristaltic pump according to claim 7, characterized in that: The bearing comprises a deep groove ball bearing (25) and a tapered roller bearing (27) which are arranged in sequence. A second hole elastic retaining ring (26) is provided at the connection between the bottom of the deep groove ball bearing (25) and the roller shaft (29), and a first hole elastic retaining ring (24) is provided at the connection between the top of the tapered roller bearing (27) and the bearing seat (21).

10. The in-phase peristaltic pump according to claim 7, characterized in that: The translation drive assembly comprises a translation motor (19), and the translation guide assembly comprises a connecting block (16), a guide column (17), a guide sleeve (18) and a guide fixing seat (20). The two ends of the connecting block (16) are respectively connected to a bearing seat (21) and the guide column (17). The guide column (17) passes through the guide sleeve (18) and is connected to the guide fixing seat (20). The guide fixing seat (20) is connected to the output end of the translation motor (19). Under the drive of the translation motor (19), the guide column (17) drives the connecting block (16) and the bearing seat (21) to translate, so as to realize that the rotating motor (1) and the roller assembly (14) are close to or away from the tube pressing fixing block (15).

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