High-precision micro peristaltic pump

Abstract

The utility model discloses a high-precision miniature peristaltic pump which comprises a shell, a pump nozzle A and a pump nozzle B. The pump nozzle A and the pump nozzle B are communicated through a silicone tube, a motor is fixedly connected to the bottom of the shell, and a support and a transmission assembly used for driving the support are integrated between the output end of the motor and the shell. According to the device, the upper cover is combined with the top of the shell, rapid alignment of the upper cover and the shell can be achieved through cooperation of a buckle and a protruding block, fixing of the upper cover and the shell is completed through a locking rod, a motor drives a support through a transmission assembly, the support is in linkage with a rotating circular truncated cone, and a roller on the rotating circular truncated cone periodically extrudes and pushes a silicone tube; according to the miniature peristaltic pump, the pump nozzle A, the pump nozzle B and the silicone tube can flow, so that normal operation of the miniature peristaltic pump is guaranteed, meanwhile, the detachably connected upper cover guarantees convenience in maintenance and replacement of components in the shell, and the rollers are combined with the rotary circular truncated cones through the clamping grooves, so that convenience in disassembly and assembly of the rollers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of micro peristaltic pump technology, and in particular to a high-precision micro peristaltic pump. Background Technology

[0002] A miniature peristaltic pump is a miniaturized fluid transfer device that delivers liquid by periodically squeezing a flexible tube. Its working principle is based on the "peristaltic effect," which involves a series of rollers or sliders sequentially squeezing and releasing the tube, causing the liquid to flow in a predetermined direction within the tube.

[0003] Chinese Patent Publication No. CN218862837U, published on April 14, 2023, discloses a miniature peristaltic pump, including a pump body and a pump cover detachably disposed at one end of the pump body. A motor is disposed inside the pump body, and an eccentric wheel is mounted on the output shaft of the motor. A rim is fitted onto the outer side of the eccentric wheel. Steps are symmetrically formed on both sides of the motor. A motor mounting hole is provided on the inner side of the pump body, and baffles corresponding to the steps are provided on both sides of the motor mounting hole. The motor is mounted inside the motor mounting hole, and the steps abut against the baffles. The output shaft of the motor has a cross-shaped cross section, and the end of the eccentric wheel has an eccentrically formed cross groove that matches the output shaft.

[0004] The main housing of existing micro peristaltic pumps, as mentioned above, is mostly made of one-piece injection molding and is in a semi-enclosed state, which makes it inconvenient to disassemble and replace internal components. Therefore, there is an urgent need to propose a corresponding high-precision micro peristaltic pump to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision micro peristaltic pump to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-precision miniature peristaltic pump includes a housing, a pump nozzle A, and a pump nozzle B. Pump nozzle A and pump nozzle B are connected by a silicone tube. A motor is fixedly connected to the bottom of the housing. A bracket and a transmission component for driving the bracket are integrated between the output end of the motor and the housing. A rotating frustum is detachably connected to the top of the bracket. Rollers are engaged with the inner surface of the rotating frustum. A top cover is detachably connected to the top of the housing, and pump nozzle A and pump nozzle B are engaged between the housing and the top cover.

[0008] Preferably, a protruding rod is fixedly connected to the inner surface of the top of the upper cover, and the protruding rod is inserted into the top of the rotating frustum.

[0009] Preferably, a locking rod is provided at the horizontal end of the upper cover, and the locking rod is screwed into the inner surface wall of the housing through a screw hole.

[0010] Preferably, the outer wall of the upper cover is fixedly connected with a buckle, and the outer wall of the buckle is engaged with the outer wall of the housing through a protrusion.

[0011] Preferably, the outer wall of the vertical end of the roller is engaged with the inner wall of the rotating frustum via a slot.

[0012] Preferably, rectangular blocks are fixedly connected to the outer walls of both pump nozzle A and pump nozzle B, and the outer walls of the two sets of rectangular blocks are respectively engaged between the upper cover and the housing through two sets of connecting grooves.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, the top cover is combined with the top of the housing. The cooperation of the buckle and the protrusion can realize the quick alignment of the top cover and the housing. The top cover and the housing are fixed by the locking rod. The motor drives the bracket through the transmission component. The bracket is linked to the rotating platform. The roller on the rotating platform periodically squeezes and pushes the silicone tube to realize the flow of fluid between the pump nozzle A, pump nozzle B and the silicone tube. This ensures the normal operation of the micro peristaltic pump. The detachable top cover ensures the convenience of maintenance and replacement of the internal components of the housing. The roller is connected to the rotating platform through the slot, which ensures the convenience of disassembling and assembling the roller.

[0015] 2. In this application, after the top cover is fixed to the housing, the protruding rod on the inner surface of the top of the top cover is inserted into the top of the rotating platform, which can limit the deflection of the rotating platform and ensure the stability of the rotation of the rotating platform and the roller, thereby improving the accuracy of the micro peristaltic pump. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of a rectangular block structure according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of a card slot structure according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram of a protruding rod structure according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Housing; 2. Motor; 3. Pump Nozzle A; 4. Pump Nozzle B; 5. Top Cover; 6. Buckle; 7. Protrusion; 8. Locking Rod; 9. Rectangular Block; 10. Rotating Frustum; 11. Roller; 12. Slot; 13. Bracket; 14. Protruding Rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A high-precision miniature peristaltic pump includes a housing 1, a pump nozzle A3 and a pump nozzle B4, which are connected by a silicone tube. A motor 2 is fixedly connected to the bottom of the housing 1. A bracket 13 and a transmission component for driving the bracket 13 are integrated between the output end of the motor 2 and the housing 1. A rotating frustum 10 is detachably connected to the top of the bracket 13. A roller 11 is engaged with the inner wall of the rotating frustum 10. A top cover 5 is detachably connected to the top of the housing 1, and the pump nozzles A3 and B4 are engaged between the housing 1 and the top cover 5.

[0025] The top cover 5 is attached to the top of the housing 1. The engagement of the buckle 6 and the protrusion 7 enables the top cover 5 and the housing 1 to be quickly aligned. The top cover 5 and the housing 1 are then fixed by the locking rod 8. The motor 2 drives the bracket 13 through the transmission component. The bracket 13 is linked to the rotating platform 10. The roller 11 on the rotating platform 10 periodically squeezes and pushes the silicone tube to achieve the flow of fluid between the pump nozzles A3 and B4 and the silicone tube. This ensures the normal operation of the micro peristaltic pump. The detachable top cover 5 ensures the convenience of maintenance and replacement of the internal components of the housing 1. The roller 11 is connected to the rotating platform 10 through the slot 12, which ensures the convenience of disassembling and assembling the roller 11.

[0026] Specifically, such as Figure 2 and Figure 4 As shown, a protruding rod 14 is fixedly connected to the inner surface of the top of the upper cover 5. The protruding rod 14 is inserted into the top of the rotating platform 10. After the upper cover 5 is fixed to the housing 1, the protruding rod 14 on the inner surface of the top of the upper cover 5 will be inserted into the top of the rotating platform 10. This can limit the deflection of the rotating platform 10 and ensure the stability of the rotation of the rotating platform 10 and the roller 11, thereby improving the accuracy of the micro peristaltic pump.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, a locking rod 8 is inserted through the horizontal end of the upper cover 5. The locking rod 8 is screwed into the inner surface of the housing 1 through a screw hole. A buckle 6 is fixedly connected to the outer surface of the upper cover 5. The outer surface of the buckle 6 is engaged with the outer surface of the housing 1 through a protrusion 7. The cooperation between the buckle 6 and the protrusion 7 can realize the quick alignment of the upper cover 5 and the housing 1. The upper cover 5 and the housing 1 are fixed by the locking rod 8. The outer surface of the vertical end of the roller 11 is engaged with the inner surface of the rotating frustum 10 through a slot 12, thereby ensuring the ease of disassembly and assembly of the roller 11. The outer surfaces of the pump nozzles A3 and B4 are both fixedly connected with rectangular blocks 9. The outer surfaces of the two sets of rectangular blocks 9 are engaged between the upper cover 5 and the housing 1 through two sets of mating grooves, which ensures the stability of the pump nozzles A3 and B4 while improving the ease of disassembly and assembly of the pump nozzles A3 and B4.

[0028] Working principle: The top cover 5 is attached to the top of the housing 1. The engagement of the buckle 6 and the protrusion 7 enables the top cover 5 and the housing 1 to be quickly aligned. The top cover 5 and the housing 1 are then fixed by the locking rod 8. The motor 2 drives the bracket 13 through the transmission component. The bracket 13 is linked to the rotating platform 10. The roller 11 on the rotating platform 10 periodically squeezes and pushes the silicone tube to achieve the flow of fluid between the pump nozzles A3 and B4 and the silicone tube. This ensures the normal operation of the micro peristaltic pump. The detachable top cover 5 ensures the convenience of maintenance and replacement of the internal components of the housing 1. The roller 11 is connected to the rotating platform 10 through the slot 12, which ensures the convenience of disassembling and assembling the roller 11. After the top cover 5 is fixed to the housing 1, the protrusion 14 on the inner surface of the top of the top cover 5 is inserted into the top of the rotating platform 10, which limits the deflection of the rotating platform 10 and ensures the stability of the rotation of the rotating platform 10 and the roller 11, thereby improving the accuracy of the micro peristaltic pump.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-precision micro peristaltic pump, comprising a shell (1), a pump nozzle A (3) and a pump nozzle B (4), the pump nozzle A (3) and the pump nozzle B (4) are communicated by a silica gel tube, characterized in that, The bottom of the shell (1) is fixedly connected with a motor (2), a support (13) and a transmission assembly for driving the support (13) are integrated between the output end of the motor (2) and the shell (1), the top of the support (13) is detachably connected with a rotating circular table (10), the inner wall of the rotating circular table (10) is clamped with a roller (11), the top of the shell (1) is detachably connected with an upper cover (5), and the pump nozzle A (3) and the pump nozzle B (4) are clamped between the shell (1) and the upper cover (5).

2. A high-precision micro peristaltic pump according to claim 1, characterized in that, The top of the upper cover (5) is fixedly connected with a convex rod (14), and the convex rod (14) is inserted into the top of the rotating circular table (10).

3. A high-precision micro peristaltic pump according to claim 2, characterized in that, The horizontal end of the upper cover (5) is provided with a locking rod (8), and the locking rod (8) is screw-connected with the inner wall of the shell (1) through a screw hole.

4. The high-precision micro peristaltic pump according to claim 3, characterized in that, The outer wall of the upper cover (5) is fixedly connected with a buckle (6), and the outer wall of the buckle (6) is clamped with the outer wall of the shell (1) through a convex block (7).

5. A high-precision micrometric peristaltic pump according to claim 4, characterized in that, The vertical end of the roller (11) is clamped with the inner wall of the rotating circular table (10) through a clamping groove (12).

6. A high-precision micrometric peristaltic pump according to claim 5, characterized in that, The outer wall of the pump nozzle A (3) and the pump nozzle B (4) is fixedly connected with a rectangular block (9), and the outer wall of the two groups of rectangular blocks (9) is clamped between the upper cover (5) and the shell (1) through two groups of clamping grooves.

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