Multichannel peristaltic pump head

Abstract

The utility model discloses a multi-channel peristaltic pump head, which relates to the technical field of peristaltic pumps and comprises a shell and a cover body which are detachably connected, a rotating shaft is arranged in a cylindrical cavity of the shell, a non-circular convex block made of magnetic metal materials is fixedly connected to the middle of one end face of the rotating shaft, and a slot is formed in the middle of the other end face of the rotating shaft. The bottom of the inserting groove is fixedly connected with a magnetic attraction buckle, the rotating shaft is fixedly connected with a plurality of layer plates, a plurality of idler wheels are arranged between every two adjacent layer plates in a rotating mode, a pipe penetrating gap is formed between the idler wheels on the same circumferential curved surface and the inner wall of the curved surface of the cylindrical cavity, and penetrating holes which are coaxial with the rotating shaft and matched with the rotating shaft in structure are formed in the shell and the cover. A hose inlet and a hose outlet which are communicated with the cylindrical cavity are formed in the curved side wall of the shell; and the hose inlet and the hose outlet are arranged in one-to-one correspondence with the pipe penetrating gaps. According to the multi-channel peristaltic pump head with the structure, hoses can be conveniently arranged, and meanwhile the number of the hoses can be conveniently increased according to needs.

Description

Technical Field

[0001] This utility model relates to the field of peristaltic pump technology, and in particular to a multi-channel peristaltic pump head. Background Technology

[0002] A peristaltic pump consists of three parts: a driver, a pump head, and a hose. Its working principle involves the driver driving a roller assembly inside the pump head. As the roller assembly rotates, it continuously squeezes and releases the elastic hose, allowing liquid to be transported from one side of the tube to the other. Peristaltic pumps offer many advantages that give them a significant competitive edge, such as the fact that the transported liquid is isolated within the pump tube, effectively preventing contamination, and their low maintenance costs.

[0003] Multi-channel peristaltic pump heads are a commonly used type of peristaltic pump head, offering the advantage of high pumping capacity. Furthermore, even if one hose fails, the others can still pump liquid, thus improving the reliability of the pumped liquid. However, existing multi-channel peristaltic pump heads have the following problems: it's inconvenient to arrange multiple hoses, and the number of channels in multi-channel peristaltic pump heads that facilitate hose arrangement is fixed, making it difficult to increase the number of hoses as needed. To solve these problems, a new type of multi-channel peristaltic pump head is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-channel peristaltic pump head that facilitates the arrangement of hoses and allows for the addition of more hoses as needed.

[0005] To achieve the above objectives, this utility model provides a multi-channel peristaltic pump head, comprising a detachably connected housing and a cover. A rotating shaft is provided within the cylindrical cavity of the housing. A non-circular protrusion made of magnetic metal is fixedly connected to the center of one end face of the rotating shaft. A slot adapted to the structure of the non-circular protrusion is provided at the center of the other end face of the rotating shaft. A magnetic snap is fixedly connected to the bottom of the slot. Several layers are fixedly connected to the rotating shaft, and several rollers rotate between adjacent layers. The rollers are arranged in a circular array around the central axis of the cylindrical cavity. A tube-through gap is formed between the rollers on the same circumferential curved surface and the curved inner wall of the cylindrical cavity. Both the housing and the cover are provided with through holes for the rotating shaft to pass through. A flexible hose inlet and outlet communicating with the cylindrical cavity are provided on the curved side wall of the housing. The flexible hose inlet and outlet are respectively configured to correspond one-to-one with the tube-through gap.

[0006] Preferably, the cover is provided with a first heat dissipation hole, and the end face of the housing away from the cover is provided with a second heat dissipation hole that is opposite to the first heat dissipation hole.

[0007] Preferably, the cover has a viewing window in the middle, and the viewing window has the first heat dissipation hole.

[0008] Preferably, the distance between the layer plate and the inner wall of the cylindrical cavity is greater than zero and less than the tube gap.

[0009] Preferably, two auxiliary fixing grooves are symmetrically arranged on the outer side of the cover, and a magnetic block is fixedly connected to the bottom of the auxiliary fixing groove. A magnetic metal column is fixedly connected to the end face of the shell away from the cover, and the magnetic metal column is adapted to the structure of the auxiliary fixing groove.

[0010] Therefore, the multi-channel peristaltic pump head of this utility model with the above-mentioned structure has the following beneficial effects: it facilitates the arrangement of hoses and also facilitates increasing the number of hoses as needed.

[0011] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the multi-channel peristaltic pump head of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of an embodiment of the multi-channel peristaltic pump head of this utility model from another perspective;

[0014] Figure 3 This is a schematic diagram of the structure of an embodiment of the roller assembly in the multi-channel peristaltic pump head of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the cover body in an embodiment of the multi-channel peristaltic pump head of this utility model.

[0016] Figure Labels

[0017] 1. Housing; 2. Cover; 3. Shaft; 4. Non-circular protrusion; 5. Slot; 6. Shelf; 7. Roller; 8. Perforation; 9. Hose inlet; 10. Hose outlet; 11. First heat dissipation hole; 12. Second heat dissipation hole; 13. Viewing window; 14. Auxiliary fixing groove; 15. Magnetic metal column; 16. Magnetic block. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] Example

[0020] like Figure 1-4As shown, a multi-channel peristaltic pump head includes a detachably connected housing 1 and a cover 2, which can be detachably connected by bolts. A rotating shaft 3 is provided within the cylindrical cavity of the housing 1. A non-circular magnetic metal protrusion 4 is fixedly connected to the center of one end face of the rotating shaft 3, and a slot 5 adapted to the structure of the non-circular protrusion 4 is provided at the center of the other end face of the rotating shaft 3. A magnetic snap is fixedly connected to the bottom of the slot 5. The magnetic snap, in conjunction with the non-circular magnetic metal protrusion 4, enables the connection of two peristaltic pump heads, thus facilitating the addition of more tubing as needed.

[0021] Several layers 6 are fixedly connected to the rotating shaft 3, and several rollers 7 rotate between adjacent layers 6. The rollers 7 are arranged in a circular array around the central axis of the cylindrical cavity, and a through-tube gap is formed between the rollers 7 on the same circumferential curved surface and the inner wall of the cylindrical cavity. Both the housing 1 and the cover 2 are provided with through holes 8 for the rotating shaft 3 to pass through. The through holes 8 on the housing 1 facilitate the connection of the rotating shaft 3 to the drive motor in the driver, and the through holes 8 on the cover 2 facilitate the insertion of the non-circular protrusion 4 into the slot 5 on the rotating shaft 3 of another peristaltic pump head. After insertion, the magnetic snap in the slot 5 can realize the connection between the two peristaltic pump heads. In this embodiment, one end of the rotating shaft 3 with the slot 5 extends out of the housing 1 and connects to the drive motor in the driver, and only a part of the non-circular protrusion 4 on the rotating shaft 3 extends out of the housing 1 to connect with the pump housing of another peristaltic pump. In actual use, the end of the rotating shaft 3 with the slot 5 can extend out of the housing 1, or the end of the rotating shaft 3 with the non-circular protrusion 4 can extend out of the housing 1, or both ends of the rotating shaft 3 can extend out of the housing 1.

[0022] The curved sidewall of the housing 1 is provided with a flexible hose inlet 9 and a flexible hose outlet 10 that communicate with the cylindrical cavity. The flexible hose inlet 9 and the flexible hose outlet 10 are respectively set to correspond one-to-one with the pipe gap, and the flexible hose inlet 9 and the flexible hose outlet 10 facilitate the arrangement of the hose.

[0023] In use, each tube gap in each peristaltic pump housing corresponds to a hose inlet 9 and a hose outlet 10, which facilitates the arrangement of hoses. When it is necessary to increase the number of hoses, simply add a peristaltic pump housing to the original peristaltic pump housing.

[0024] In a further preferred embodiment, the cover 2 is provided with a first heat dissipation hole 11, and the end face of the shell 1 away from the cover 2 is provided with a second heat dissipation hole 12 that is opposite to the first heat dissipation hole 11. The first heat dissipation hole 11 and the second heat dissipation hole 12 facilitate heat dissipation from the inside of the shell 1.

[0025] In a further optimized design, a viewing window 13 is provided in the middle of the cover 2, and a first heat dissipation hole 11 is provided on the viewing window 13. The viewing window 13 allows the user to easily observe the operating status of various components inside the housing 1.

[0026] In a further optimized design, the distance between the shelf 6 and the inner wall of the cylindrical cavity is greater than zero and less than the tube clearance. Two adjacent shelves 6 can limit the movement of the hose, preventing displacement of the hose during peristaltic pump operation.

[0027] In a further optimized design, two auxiliary fixing grooves 14 are symmetrically arranged on the outer surface of the cover 2. In this embodiment, the auxiliary fixing grooves 14 are located on the viewing window 13. A magnetic block 16 is fixedly connected to the bottom of the auxiliary fixing groove 14, and a magnetic metal post 15 is fixedly connected to the end face of the housing 1 away from the cover 2. The magnetic metal post 15 is structurally compatible with the auxiliary fixing groove 14. In use, after the two peristaltic pump heads are connected, the magnetic metal post 15 is inserted into the auxiliary fixing groove 14, and the magnetic block 16 can achieve a fixed connection between the magnetic metal post 15 and the fixing groove, further increasing the firmness of the connection between the two peristaltic pump heads.

[0028] Therefore, this utility model adopts a multi-channel peristaltic pump head with the above-mentioned structure, which facilitates the arrangement of hoses and allows for the addition of more hoses as needed.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A multi-channel peristaltic pump head, characterized in that: The device includes a detachably connected housing (1) and a cover (2). A rotating shaft (3) is provided in the cylindrical cavity of the housing (1). A non-circular protrusion (4) made of magnetic metal is fixedly connected to the middle of one end face of the rotating shaft (3). A slot (5) adapted to the structure of the non-circular protrusion (4) is provided in the middle of the other end face of the rotating shaft (3). A magnetic snap is fixedly connected to the bottom of the slot (5). Several shelves (6) are fixedly connected to the rotating shaft (3). Several rollers (7) rotate between two adjacent shelves (6). The rollers (7) are arranged in a circular array with the central axis of the cylindrical cavity as the axis. The rollers (7) on the same circumferential curved surface form a tube gap with the inner wall of the cylindrical cavity. The housing (1) and the cover (2) are provided with through holes (8) for the rotating shaft (3) to pass through. The curved side wall of the housing (1) is provided with a hose inlet (9) and a hose outlet (10) that communicate with the cylindrical cavity. The hose inlet (9) and the hose outlet (10) are respectively set with the tube gap one by one.

2. The multi-channel peristaltic pump head according to claim 1, characterized in that: The cover (2) is provided with a first heat dissipation hole (11), and the end face of the shell (1) away from the cover (2) is provided with a second heat dissipation hole (12) that is opposite to the first heat dissipation hole (11).

3. A multi-channel peristaltic pump head according to claim 2, characterized in that: The cover (2) has a viewing window (13) in the middle, and the viewing window (13) has the first heat dissipation hole (11).

4. A multi-channel peristaltic pump head according to claim 1, characterized in that: The distance between the layer plate (6) and the inner wall of the cylindrical cavity is greater than zero and less than the tube gap.

5. A multi-channel peristaltic pump head according to claim 1, characterized in that: Two auxiliary fixing grooves (14) are symmetrically arranged on the outer side of the cover (2). A magnetic block (16) is fixedly connected to the bottom of the auxiliary fixing groove (14). A magnetic metal column (15) is fixedly connected to the end face of the shell (1) away from the cover (2). The magnetic metal column (15) is adapted to the structure of the auxiliary fixing groove (14).

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