Multichannel peristaltic pump head

Abstract

The utility model discloses a multichannel peristaltic pump head, which relates to the technical field of peristaltic pumps, and comprises a pump shell and a pump cover, the pump cover is detachably connected with the front side surface of the pump shell, the front side surface of the pump shell is provided with a U-shaped pumping groove, a roller assembly is arranged in the pumping groove, and a plurality of hoses are arranged between the roller assembly and the bottom of the pumping groove. The bottom of the pumping groove is provided with pipe laying rails in one-to-one correspondence with the hoses, connecting pieces are arranged at the two ends of each hose, each connecting piece comprises a limiting protruding ring and a clamping block which are arranged on the outer wall of the hose in a vertically sleeving mode, the limiting protruding rings are fixedly connected with the hoses, the clamping blocks are rotationally connected with the hoses, and the length of the wide edge of each clamping block is not smaller than the diameter length of the corresponding limiting protruding ring. And long-strip-shaped through grooves in one-to-one correspondence with the connecting pieces are vertically formed in the top face of the pump shell in a penetrating mode, and the long-strip-shaped through grooves are matched with the clamping block structures. According to the multi-channel peristaltic pump head with the structure, the position of the hose is stable, and the hose can be conveniently arranged and replaced.

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 hoses. Its working principle involves the driver driving a roller assembly inside the pump head. The rotation of the roller assembly causes the rollers to squeeze the elastic hose located between the squeeze plate and the rollers, thus transporting liquid from one side of the tube to the other. The main competitive advantages of peristaltic pumps are that the fluid is isolated within the pump tube, the pump tube can be quickly replaced, the fluid can flow backwards, it can run dry, and maintenance costs are low. Multi-channel peristaltic pump heads have the advantage of high pumping capacity, and even if one hose fails, the others can still pump liquid, thus improving the reliability of liquid delivery. However, existing multi-channel peristaltic pump heads have the following problems in use: it is inconvenient to arrange multiple hoses and it is inconvenient to replace the hoses.

[0003] To solve the above problems, a new type of peristaltic pump head is needed. Utility Model Content

[0004] The purpose of this invention is to provide a multi-channel peristaltic pump head with a stable hose position, which facilitates hose arrangement and replacement.

[0005] To achieve the above objectives, this utility model provides a multi-channel peristaltic pump head, including a pump housing and a pump cover. The pump cover is detachably connected to the front side of the pump housing. The front side of the pump housing is provided with a U-shaped pumping groove, and a roller assembly is provided inside the pumping groove. The rear side of the pump housing is provided with a connecting hole communicating with the pumping groove. A plurality of flexible tubes are provided between the roller assembly and the bottom of the pumping groove. The bottom of the pumping groove is provided with a tube-laying track corresponding to each flexible tube. Each flexible tube has a connector at both ends. The connector includes a limiting protrusion and a locking block fitted onto the outer wall of the flexible tube. The limiting protrusion is fixedly connected to the flexible tube, and the locking block is rotatably connected to the flexible tube. The width of the locking block is not less than the diameter of the limiting protrusion. A long strip-shaped through groove is vertically provided on the top surface of the pump housing, corresponding to each connector. The long strip-shaped through groove is adapted to the structure of the locking block.

[0006] Preferably, a support block is also fixedly connected to the outer wall of the hose, the top surface of the support block is in contact with the bottom surface of the locking block, and the top surface of the locking block is in contact with the bottom surface of the limiting protrusion.

[0007] Preferably, the top surface of the pump casing is provided with a limiting groove that is arranged in a cross shape with the elongated through groove, and the limiting groove is adapted to the locking block structure.

[0008] Preferably, both ends of the hose are provided with internal or external threads.

[0009] Preferably, the pump cover is provided with an observation window that is positioned opposite to the pumping trough.

[0010] Preferably, the connecting hole is rotatably connected to the central shaft on the roller assembly.

[0011] Therefore, the multi-channel peristaltic pump head of this utility model with the above-described structure has the following beneficial effects:

[0012] 1. The use of connectors at both ends of the hose and the long groove makes it easy to replace the hose and ensures the stability of the hose position.

[0013] 2. Using pipe-laying tracks facilitates the arrangement of hose positions and improves the stability of hose positions.

[0014] 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

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the multi-channel peristaltic pump head of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the flexible tube in an embodiment of the multi-channel peristaltic pump head of this utility model;

[0017] Figure 3 This is a schematic diagram of the top surface of the pump casing in an embodiment of the multi-channel peristaltic pump head of this utility model.

[0018] Figure Labels

[0019] 1. Pump casing; 2. Pump cover; 3. Pumping trough; 4. Roller assembly; 5. Hoses; 6. Pipe laying track; 7. Connectors; 71. Limiting ring; 72. Locking block; 8. Long strip through groove; 9. Support block; 10. Limiting groove. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example

[0022] like Figure 1-3As shown, a multi-channel peristaltic pump head includes a pump housing 1 and a pump cover 2. The pump cover 2 is detachably connected to the front side of the pump housing 1, allowing for easy maintenance and replacement of internal components after the pump housing 1 is opened. The rear side of the pump housing 1 has a connection hole communicating with the pumping chamber groove, and the front side of the pump housing 1 has a U-shaped pumping groove 3. A roller assembly 4 is located within the pumping groove 3, and several flexible hoses 5 are arranged between the roller assembly and the bottom of the pumping groove 3.

[0023] The bottom of the pumping tank 3 is equipped with pipe-laying tracks 6, each corresponding to a hose 5. These tracks facilitate the arrangement of the hoses 5 and improve their stability. Each hose 5 has a connector 7 at both ends. The connector 7 includes a limiting protrusion 71 and a locking block 72, both fitted onto the outer wall of the hose 5. The limiting protrusion 71 is fixedly connected to the hose 5, and the locking block 72 is rotatably connected to the hose 5. The width of the locking block 72 is not less than the diameter of the limiting protrusion 71. A vertically penetrating elongated slot 8, corresponding to each connector 7, is provided on the top surface of the pump casing 1. The elongated slot 8 is structurally compatible with the locking block 72. In use, open the pump cover 2 and place the hose 5 in the pipe laying track 6. Then, rotate the clamp 72 to the position directly opposite the elongated through groove 8 and pass the clamp 72 through the elongated through groove 8 to the top of the pump casing 1. Then, rotate the clamp 72 so that its two ends overlap the top surface of the pump casing 1 to complete the installation of the hose 5. Rotate the clamp 72 so that it is directly opposite the elongated through groove 8. At this time, the clamp 72 can be passed through the elongated through groove 8 to the pumping groove 3 to complete the disassembly of the hose 5.

[0024] In a further optimized design, a support block 9 is also fixedly connected to the outer wall of the hose 5. The top surface of the support block 9 contacts the bottom surface of the locking block 72, and the top surface of the locking block 72 contacts the bottom surface of the limiting protrusion 71. The support block 9 is used to position the locking block 72 and prevent the locking block 72 from moving arbitrarily on the hose 5.

[0025] In a further optimized design, the top surface of the pump casing 1 is provided with a limiting groove 10 that intersects the elongated through groove 8 in a cross shape. The limiting groove 10 is adapted to the structure of the locking block 72. In use, the locking block 72 is placed into the limiting groove 10, which can improve the stability of the locking block 72's position.

[0026] In a further preferred embodiment, both ends of the hose 5 are provided with internal or external threads. The internal and external threads facilitate the connection of the hose 5 to other liquid delivery pipelines.

[0027] In a further optimized design, the pump cover 2 is provided with an observation window that is positioned opposite the pumping trough 3. The observation window allows users to easily observe the operating status of the components inside the pump body.

[0028] In a further preferred embodiment, the connecting hole is rotatably connected to the central shaft on the roller assembly 4. The connecting hole facilitates the central shaft to pass through the pump housing 1 and connect to the drive unit inside the driver.

[0029] Therefore, the multi-channel peristaltic pump head of this utility model with the above-mentioned structure has a stable position of the hose, which facilitates the arrangement of the hose and the replacement of the hose.

[0030] 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 by: The utility model provides a pump, including pump shell (1) and pump cover (2), pump cover (2) is detachably connected with the front side of pump shell (1), be equipped with the positive U -shaped pumping groove (3) on the front side of pump shell (1), be equipped with the roller assembly (4) in the pumping groove (3), be equipped with the connecting hole of communication with the pumping groove on the back side of pump shell (1), be equipped with a plurality of hoses (5) between the roller assembly and the groove bottom of pumping groove (3), the groove bottom of pumping groove (3) is equipped with the pipe laying track (6) corresponding with the hose (5) one to one, both ends of each hose (5) are equipped with connecting piece (7), connecting piece (7) includes the limiting convex ring (71) and the clamping block (72) of upper and lower sleeve setting on the outer wall of hose (5), the limiting convex ring (71) is fixedly connected with hose (5), the clamping block (72) is rotatably connected with hose (5), and the width length of clamping block (72) is not less than the diameter length of limiting convex ring (71), the top of pump shell (1) is vertically through -going and is equipped with the long strip -shaped through groove (8) corresponding with connecting piece (7) one to one, long strip -shaped through groove (8) and clamping block (72) structure are adapted.

2. A multi-channel peristaltic pump head according to claim 1, characterized in that: The outer wall of the hose (5) is also fixedly connected with the supporting block (9), the top surface of the supporting block (9) is in contact with the bottom surface of the clamping block (72), and the top surface of the clamping block (72) is in contact with the bottom surface of the limiting convex ring (71).

3. A multi-channel peristaltic pump head as claimed in claim 1, characterized in that: The top surface of the pump shell (1) is provided with a limiting groove (10) which is crosswise arranged with the long strip-shaped through groove (8), and the limiting groove (10) is adapted to the structure of the clamping block (72).

4. A multi-channel peristaltic pump head as defined in claim 1, wherein: Both ends of the hose (5) are provided with internal threads or external threads.

5. A multi-channel peristaltic pump head as defined in claim 1, wherein: The pump cover (2) is provided with an observation window opposite to the pumping groove (3).

6. A multi-channel peristaltic pump head as defined in claim 1, wherein: The connecting hole is rotatably connected with the central shaft of the roller assembly (4).

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