CN211623677U

CN211623677U - Double-roller rotary high-precision peristaltic pump

Info

Publication number: CN211623677U
Application number: CN201922384075.5U
Authority: CN
Inventors: 阳波; 刘振; 陶海军
Original assignee: Changsha Zhixian Ziliang Technology Co ltd
Current assignee: Changsha Zhixian Ziliang Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-02
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a double-roller rotary high-precision peristaltic pump, which comprises two or more groups of double roller components, a pump body component, a rotating component and a roller opening and closing component, wherein the rotating component is arranged on the pump body component, and the two or more groups of double roller components are arranged on the rotating component and follow the rotating component to rotate; the roller opening and closing assembly is installed on the pump body assembly and controls the opening and closing of the double-roller assembly. The utility model has the advantages of simple and compact structure, high precision, low abrasion, easy operation, etc.

Description

Double-roller rotary high-precision peristaltic pump

Technical Field

The utility model mainly relates to the technical field of peristaltic pumps, in particular to a double-roller rotary high-precision peristaltic pump.

Background

Peristaltic pumps move forward as a finger squeezes a fluid filled hose, sliding the fluid in the tube forward. Peristaltic pumps are also this principle, with the fingers being replaced by rollers. The fluid is pumped by alternately squeezing and releasing the elastic delivery hose of the pump. Just like squeezing the hose with two fingers, as the fingers move, negative pressure is formed in the hose, and the liquid flows along with the negative pressure. The peristaltic pump has the advantages of no pollution and good precision, and is widely applied to various industries, including the chemical industry, the pharmaceutical industry, the food filling industry and the like.

In the prior art, peristaltic pumps are classified into linear peristaltic pumps and rotary peristaltic pumps. The existing peristaltic pump has the following defects:

1. the hose of rotation type peristaltic pump centers on wheel components winding in gyro wheel one side, then compresses tightly the hose through the pump cover, because the hose does not have complete fixed position in the pump body, drives the hose dislocation removal easily when the gyro wheel is rotatory, produces the precision error, need open the pump cover when trading the pipe simultaneously, inconvenient operation under clean laminar flow environment. Moreover, the hose is susceptible to wear with this arrangement.

2. The linear peristaltic pump has two forms at present, one is a single-roller linear peristaltic pump, and the problems of inconvenient operation and hose abrasion also exist; the other is a double-roller linear peristaltic pump, although a series of problems such as hose abrasion, filling precision, convenience in operation and the like are solved to a certain extent, the self structure is relatively complex, a lifting device, a power and pressure pipe device, a power and backflow prevention device are required, and the loading capacity of the linear pump is not too large due to the stroke limitation of the linear structure.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in: to the technical problem that prior art exists, the utility model provides a simple structure is compact, the precision is high, wearing and tearing are low, the high accuracy peristaltic pump of two gyro wheels rotation type of easy operation.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a double-roller rotary high-precision peristaltic pump comprises two or more groups of double roller assemblies, a pump body assembly, a rotating assembly and roller opening and closing assemblies, wherein the rotating assembly is arranged on the pump body assembly, and the two or more groups of double roller assemblies are arranged on the rotating assembly and rotate along with the rotating assembly; the roller opening and closing assembly is installed on the pump body assembly and controls the opening and closing of the double-roller assembly.

As a further improvement of the utility model: the roller opening and closing assembly adopts a swinging opening and closing mode or a translation opening and closing mode.

As a further improvement of the utility model: the roller opening and closing assembly adopts a cam to control the opening and closing mode of the roller, or adopts a motor direct driving mode or adopts a cylinder direct driving mode.

As a further improvement of the utility model: the roller opening and closing assembly comprises an opening and closing cam, a cam follower and a mounting swing rod, wherein the mounting swing rod is mounted on the opening and closing cam through the cam follower, and the cam follower and the mounting swing rod are driven to move along with the movement of the opening and closing cam, so that the movable roller group connected with the cam follower moves close to or away from the fixed roller group.

As a further improvement of the utility model: each double-roller component comprises a fixed roller group and a movable roller group which are oppositely arranged, a first roller is installed on the fixed roller group through a roller installation shaft, a second roller is installed on the movable roller group through an eccentric shaft, a working hose is placed between the first roller and the second roller, and the peristaltic metering function is completed through clamping or loosening of the first roller and the second roller.

As a further improvement of the utility model: the movable roller group is connected with the roller opening and closing assembly and moves under the control of the roller opening and closing assembly to enable the movable roller group to move close to or far away from the fixed roller group.

As a further improvement of the utility model: the pump body assembly comprises a pump body mounting column and a pump body mounting seat, the pump body mounting column is connected to the pump body mounting seat to form a frame structure, and a cavity used for mounting a driving unit in the rotating assembly is formed.

As a further improvement of the utility model: the first roller and the second roller are the same in size.

As a further improvement of the utility model: the auxiliary rolling wheel assembly also comprises a pair of oppositely arranged rolling wheels, and the working hose is arranged in the auxiliary rolling wheel assembly in a penetrating way.

As a further improvement of the utility model: the two groups and more than two groups of double roller assemblies are kept at any time, and at least one group of double roller assemblies is in a state of closing and pressing the working hose.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a two gyro wheels rotation type high accuracy peristaltic pump adopts two sets of and two sets of above two gyro wheels, keeps having at least a set of two gyro wheels to be in foldingly compressing tightly the hose state at any moment, has saved anti-reflux unit.

2. The utility model discloses a high accuracy peristaltic pump of two gyro wheels rotation type adopts two gyro wheels to press the pipe, does not have fixed cover plate for the work hose exposes completely, and sanitary cleanness is convenient, and it is convenient to change. And further adopt two the same gyro wheels of size to press the pipe, reduce wearing and tearing.

3. The utility model discloses a high accuracy peristaltic pump of two gyro wheel rotation types, multiunit double-roller subassembly are installed on rotating assembly, can rotate in succession, have overcome the not too big defect of linear pump dress volume.

4. The utility model discloses a high accuracy peristaltic pump of two gyro wheels rotation type, two gyro wheels open and shut the subassembly and can adopt opening and shutting of cam control gyro wheel, also can adopt opening and shutting of power devices control two gyro wheels such as motor, cylinder. The double-roller opening and closing assembly can adopt swinging opening and closing, translational opening and closing or other opening and closing modes. The opening and closing of the double rollers are used for effectively avoiding the pressure pipe assembly.

Drawings

Fig. 1 is a schematic view of the main structure of the pump of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

Fig. 3 is an axis measuring view of the present invention.

Fig. 4 is a schematic structural view of the dual roller opening and closing assembly of the present invention.

Fig. 5 is a schematic view of the present invention in operation.

Illustration of the drawings:

1. a pump body assembly; 2. a roller opening and closing assembly; 3. a rotating assembly; 4. a double roller assembly; 5. an auxiliary roller assembly; 6. a hose securing assembly; 7. a working hose; 8. a fluid; 11. a pump body mounting post; 12. a pump body mounting seat; 21. an opening and closing cam; 22. a cam follower; 23. installing a swing rod; 31. a rotating base; 32. a rotating electric machine; 41. a fixed roller group, 42, a movable roller group, 411, a first roller, 412 and a roller mounting shaft; 421. a second roller; 422. an eccentric shaft.

Detailed Description

The invention will be described in further detail with reference to the drawings and specific examples.

As shown in fig. 1-4, the utility model discloses a high accuracy peristaltic pump of two gyro wheels rotation type contains two sets of and two sets of above two gyro wheel subassemblies 4, pump body subassembly 1, rotating assembly 3, gyro wheel opening and closing subassembly 2 and hose fixed subassembly 6, and rotating assembly 3 passes through the motor and installs on pump body subassembly 1, and two sets of above two gyro wheel subassemblies 4 are installed on rotating assembly 3, can follow rotating assembly 3 and be rotary motion. The roller opening and closing assembly 2 is arranged on the pump body assembly 1 and controls the opening and closing of the double-roller assembly 4.

In the operation, the working hose 7 passes through the plurality of groups of double-roller assemblies 4, and two or more groups of double-roller assemblies 4 are adopted, so that at least one group of double-roller assemblies 4 can be kept in a state of closing and pressing the working hose 7 at any time, and a backflow prevention device in the traditional peristaltic pump structure is omitted. Moreover, the utility model provides a multiunit double-roller subassembly 4 installs on rotating assembly 3, just can realize continuous rotation, and then has overcome the not too big defect of linear pump dress volume.

The utility model discloses an among the above-mentioned structure, utilize two gyro wheel subassemblies 4 to control work hose 7 to do not have fixed apron, make work hose 7 be in complete naked state, the complete machine has the sanitary clean convenience, changes convenient advantage.

In a specific application example, each double-roller assembly 4 includes a fixed roller set 41 and a movable roller set 42 which are oppositely arranged, a first roller 411 is installed on the fixed roller set 41 through a roller installation shaft 412, a second roller 421 is installed on the movable roller set 42 through an eccentric shaft 422, the working hose 7 is located between the first roller 411 and the second roller 421, and the peristaltic metering function is completed through clamping or releasing of the first roller 411 and the second roller 421. The movable roller group 42 is connected to the roller opening and closing assembly 2 and moves closer to or away from the fixed roller group 41 under the control of the roller opening and closing assembly 2.

Further, the first roller 411 and the second roller 421 have the same size, which not only can ensure the best clamping effect on the working hose 7, but also can reduce the abrasion on the working hose 7.

As a preferred embodiment, the present invention further comprises an auxiliary roller assembly 5, wherein the auxiliary roller assembly 5 also comprises a pair of rollers disposed oppositely, and the working hose 7 is inserted therein for performing auxiliary control or performing necessary control by cooperating with the dual roller assembly 4 when necessary. For example, if the working hose 7 is a very soft flexible tube, which has no tension, and thus it automatically drops, the roller assembly 5 can be assisted in tensioning.

In a specific application example, the purpose of the roller opening and closing assembly 2 is to control the opening and closing of two opposite rollers in the double-roller assembly 4, and therefore, any way that meets the requirement should be within the protection scope of the present invention. For example, the roller can be opened and closed by swinging, translational opening and closing or other opening and closing modes, the opening and closing of the roller can be controlled by a cam, and the opening and closing of the double rollers can be controlled by power devices such as a motor, an air cylinder and the like.

In this example, the roller opening and closing assembly 2 adopts a cam control manner, that is, the roller opening and closing assembly 2 includes an opening and closing cam 21, a cam follower 22 and a mounting swing rod 23, the mounting swing rod 23 is mounted on the opening and closing cam 21 through the cam follower 22, and the cam follower 22 and the mounting swing rod 23 are driven to move along with the movement of the opening and closing cam 21, so that the movable roller set 42 connected with the cam moves close to or away from the fixed roller set 41.

In a specific application example, the rotating assembly 3 includes a rotating base 31 and a rotating motor 32, and the rotating base 31 is installed above the rotating motor 32 and is driven by the rotating motor 32 to rotate. More than two sets of double roller assemblies 4 are mounted on the rotary base 31.

In a specific application example, the pump body assembly 1 includes a pump body mounting post 11 and a pump body mounting seat 12, the pump body mounting post 11 is connected to the pump body mounting seat 12 to form a frame structure, and a cavity for mounting the rotating motor 32 in the rotating assembly 3 is formed.

Referring to fig. 5, the working hose 7 is wound around two or more sets of double roller assemblies 4, and the fluid 8 forms a quantitative metering effect on the working hose 7 according to the working period as the rotating assembly 3 rotates.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.

Claims

1. The double-roller rotary high-precision peristaltic pump is characterized by comprising two or more groups of double roller assemblies (4), a pump body assembly (1), a rotating assembly (3) and a roller opening and closing assembly (2), wherein the rotating assembly (3) is arranged on the pump body assembly (1), and the two or more groups of double roller assemblies (4) are arranged on the rotating assembly (3) and rotate along with the rotating assembly (3); the roller opening and closing assembly (2) is installed on the pump body assembly (1) and controls the opening and closing of the double roller assemblies (4).

2. The double-roller rotary high-precision peristaltic pump as claimed in claim 1, wherein said roller opening and closing assembly (2) is in a swinging opening and closing manner or a translation opening and closing manner.

3. The double-roller rotary high-precision peristaltic pump as claimed in claim 1, wherein the roller opening and closing assembly (2) is in a cam-controlled roller opening and closing manner, or in a motor direct driving manner, or in a cylinder direct driving manner.

4. The double-roller rotary high-precision peristaltic pump according to claim 3, wherein each double-roller assembly (4) comprises a fixed roller set (41) and a movable roller set (42) which are oppositely arranged, the fixed roller set (41) is provided with a first roller (411) through a roller mounting shaft (412), the movable roller set (42) is provided with a second roller (421) through an eccentric shaft (422), the movable roller set is positioned between the first roller (411) and the second roller (421) and used for placing the working hose (7), and the peristaltic metering function is completed through clamping or loosening of the first roller (411) and the second roller (421).

5. The double-roller rotary high-precision peristaltic pump as claimed in claim 4, wherein the movable roller set (42) is connected to the roller opening and closing assembly (2) and moves closer to or away from the fixed roller set (41) under the control of the roller opening and closing assembly (2).

6. The double-roller rotary high-precision peristaltic pump as claimed in any one of claims 4 to 5, wherein the roller opening and closing assembly (2) comprises an opening and closing cam (21), a cam follower (22) and a mounting swing rod (23), the mounting swing rod (23) is mounted on the opening and closing cam (21) through the cam follower (22), and the cam follower (22) and the mounting swing rod (23) are driven to move along with the movement of the opening and closing cam (21), so that the movable roller set (42) connected with the cam follower moves close to or away from the fixed roller set (41).

7. The dual roller rotary high precision peristaltic pump according to any one of claims 1 to 5, characterized in that said pump body assembly (1) comprises a pump body mounting post (11) and a pump body mounting seat (12), said pump body mounting post (11) being attached to the pump body mounting seat (12) forming a frame-like structure and forming a cavity for mounting a drive unit in the rotating assembly (3).

8. A dual roller rotary high precision peristaltic pump according to claim 4 or 5, wherein said first roller (411) and second roller (421) are of the same size.

9. The double-roller rotary high-precision peristaltic pump as claimed in any one of claims 1 to 5, further comprising an auxiliary roller assembly (5), wherein the auxiliary roller assembly (5) also comprises a pair of rollers which are oppositely arranged, and the working hose (7) is penetrated therein.

10. A double roller rotary high precision peristaltic pump according to any one of claims 1 to 5, characterized in that said two and more sets of double roller assemblies (4) are maintained in a state in which at least one set of double roller assemblies (4) is in a state of being closed to press the working hose (7) at any time.