Planetary peristaltic pump

Abstract

The utility model discloses a kind of planetary peristaltic pumps, including pump shell, the inner cavity of pump shell is movably connected with rotating frame, the right side of rotating frame is movably connected with reduction gearbox cover, the right side of reduction gearbox cover is provided with motor base, the right side of motor base is provided with motor, the output end of motor is fixedly connected with driving tooth fixedly connected, the side of driving tooth is engaged with planetary gear.This utility model is through joint card piece and elastic clamping block adaptation, first buckle and second buckle cooperation, without bolt, it can be quickly completed that peristaltic tube and joint are installed and fixed, dismounting is convenient and efficient, avoid medium leakage or running abnormal sound caused by improper installation, pump shell boss and reduction gearbox cover rotating clamping groove adaptation, pump shell insertion rod and rotating frame insertion slot cooperation, combined with the transmission structure of planetary gear and planet carrier fixed connection, ensure that driving tooth and planetary gear meshing gap is stable, reduce running wear, improve flow accuracy and conveying stability.

Description

Technical Field

[0001] This utility model relates to the field of planetary peristaltic pump technology, specifically a planetary peristaltic pump. Background Technology

[0002] Planetary peristaltic pumps are widely used in various fields such as chemical, pharmaceutical, environmental protection, and laboratory applications due to their advantages such as pollution-free transport of media, stable flow rate, and strong self-priming ability. They are key equipment for accurately transporting various corrosive, viscous, or particulate media.

[0003] The installation and replacement process of the peristaltic tube of traditional planetary peristaltic pumps is complicated, relying on bolt fixing or multiple clips. Disassembly and assembly are time-consuming, and improper installation can easily lead to media leakage or abnormal noise in pump operation. Some planetary peristaltic pumps have unreasonable transmission structure design, and the meshing clearance between the driving tooth and the planetary tooth is unstable. After long-term operation, wear is likely to occur, resulting in a decrease in flow accuracy and affecting the stability of delivery. Therefore, we propose a planetary peristaltic pump. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a planetary peristaltic pump that is easy to install and stable in operation. It solves the problems of complex installation and replacement processes for the peristaltic tube of traditional planetary peristaltic pumps, which often rely on bolt fixing or multiple clips, are time-consuming to disassemble and assemble, and are prone to media leakage or abnormal noise in pump operation due to improper installation. In addition, some planetary peristaltic pumps have unreasonable transmission structure designs, with unstable meshing clearance between the driving teeth and planetary teeth, which are prone to wear after long-term operation, resulting in a decrease in flow accuracy and affecting the stability of delivery.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a planetary peristaltic pump, comprising a pump housing, a rotating frame movably connected to the inner cavity of the pump housing, a gearbox cover movably connected to the right side of the rotating frame, a motor base disposed on the right side of the gearbox cover, a motor disposed on the right side of the motor base, a drive gear fixedly connected to the output end of the motor, a planetary gear meshing on one side of the drive gear, a planetary carrier fixedly connected to one side of the planetary gear, a planetary carrier inserted into one side of the rotating frame, a roller movably connected to one side of the rotating frame via a pin, a peristaltic tube disposed on one side of the roller, and a connector communicating with the top of the peristaltic tube.

[0006] Preferably, a connector clamp is fixedly connected to one side of the connector, and a movable groove is provided on the top of the pump casing, with an elastic block fixedly connected to the inner wall of the movable groove, the elastic block being adapted to the connector clamp.

[0007] Preferably, a first buckle is fixedly connected to the outer side of the motor base, and a second buckle is fixedly connected to the inner wall of the gearbox cover, wherein the first buckle and the second buckle are adapted to each other.

[0008] Preferably, a protrusion is fixedly connected to the outer side of the pump housing, and a rotating groove is provided on the left side of the gearbox cover, with the protrusion and the rotating groove being adapted to each other.

[0009] Preferably, a plug rod is fixedly connected to the left side of the pump housing cavity, a slot is provided in the inner cavity of the rotating frame, and the slot is adapted to the plug rod. The motor base is connected to the motor by screws.

[0010] Compared with the prior art, the present invention provides a planetary peristaltic pump, which has the following beneficial effects:

[0011] The motor of this invention is fixed to a motor base. After startup, its output end drives the drive gear to rotate. The drive gear meshes with the planetary gears, transmitting power to the rotating frame through the planetary carrier. Simultaneously, the screw motor provides a fixing function, ensuring stable operation of the transmission system and preventing transmission clearance deviation caused by vibration. The rotating frame rotates synchronously with the planetary carrier, and the rollers connected by pins perform circular motion accordingly. When the rollers contact and squeeze the peristaltic tube inside the pump casing, the tube volume decreases, pushing the medium inside the tube towards the outlet. As the rollers continue to rotate and move away from the squeezing position, the peristaltic tube returns to its original position due to its elasticity, the tube volume recovers, and negative pressure is generated, drawing in the medium to be transported from the inlet end through "squeezing." The "reset" cycle enables continuous, contactless media delivery. The media enters and exits the pump body through the connector. The connector clips and elastic blocks work together to firmly fix the connector to the pump casing, preventing loosening due to pressure or vibration during delivery. At the same time, the first and second clips help to fix the connection between the two ends of the peristaltic tube and the connector, ensuring a sealed media delivery path and preventing leakage or backflow. The internal structure of the gearbox cover works with the drive gear and planetary gears to reduce and adjust the motor output speed, keeping the rotating frame and rollers at a suitable rotation speed. This ensures stable media delivery flow and prevents excessive wear of the peristaltic tube due to excessive speed, extending the service life of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the exploded structure of this utility model from a first-person perspective.

[0015] Figure 4 This is a schematic diagram of the exploded structure of this utility model from a second perspective.

[0016] In the diagram: 1. Pump casing; 2. Connector; 3. Rotating frame; 4. Pin; 5. Roller; 6. Peristaltic tube; 7. Gearbox cover; 8. Motor base; 9. Motor; 10. Drive gear; 11. Screw; 12. Planetary gear; 13. Planetary carrier; 14. Connector clip; 15. Elastic locking block; 16. First latch; 17. Second latch. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Please see Figures 1 to 4 As shown, this utility model provides a planetary peristaltic pump, including a pump housing 1. A rotating frame 3 is movably connected to the inner cavity of the pump housing 1. A gearbox cover 7 is movably connected to the right side of the rotating frame 3. A motor base 8 is provided on the right side of the gearbox cover 7. A motor 9 is provided on the right side of the motor base 8. An active gear 10 is fixedly connected to the output end of the motor 9. A planetary gear 12 meshes with one side of the active gear 10. A planetary carrier 13 is fixedly connected to one side of the planetary gear 12. One side of the planetary carrier 13 is inserted into the rotating frame 3. A roller 5 is movably connected to one side of the rotating frame 3 through a pin 4. A peristaltic tube 6 is provided on one side of the roller 5. A connector 2 is connected to the top of the peristaltic tube 6.

[0020] A connector clamp 14 is fixedly connected to one side of the connector 2. A movable groove is opened on the top of the pump housing 1, and an elastic clamp 15 is fixedly connected to the inner wall of the movable groove. The elastic clamp 15 is adapted to the connector clamp 14.

[0021] The outer side of the motor base 8 is fixedly connected with a first buckle 16, and the inner wall of the gearbox cover 7 is fixedly connected with a second buckle 17. The first buckle 16 and the second buckle 17 are compatible.

[0022] A protrusion is fixedly connected to the outer side of the pump housing 1, and a rotating slot is provided on the left side of the gearbox cover 7, with the protrusion and the rotating slot being compatible.

[0023] A plug rod is fixedly connected to the left side of the inner cavity of the pump casing 1. The inner cavity of the rotating frame 3 has a slot, and the slot is compatible with the plug rod. The motor base 8 is connected to the motor 9 by screws 11.

[0024] Working principle: Motor 9 is fixed to motor base 8. After starting, its output end drives the drive gear 10 to rotate. The drive gear 10 meshes with the planetary gear 12, and transmits power to the rotating frame 3 through the planetary carrier 13. At the same time, screw 11 and motor 9 play a fixing role, ensuring the stable operation of the transmission system and avoiding transmission clearance deviation caused by vibration. The rotating frame 3 rotates synchronously with the planetary carrier 13, and the roller 5 connected by the pin 4 moves in a circular motion. When the roller 5 contacts and squeezes the peristaltic tube 6 in the pump housing 1, the volume of the tube cavity decreases, pushing the medium in the tube towards the outlet. As the roller 5 continues to rotate and moves away from the squeezing position, the peristaltic tube 6 returns to its original position due to its own elasticity, the volume of the tube cavity recovers and a negative pressure is generated, and the medium to be transported is sucked in from the inlet end. The "pressure-reset" cycle enables continuous, contactless media delivery. The media enters and exits the pump body through connector 2. Connector clip 14 and elastic clip 15 cooperate to firmly fix connector 2 to pump casing 1, preventing loosening of the connector due to pressure or vibration during delivery. At the same time, the first clip 16 and the second clip 17 assist in fixing the connection between the two ends of the peristaltic tube 6 and connector 2, ensuring a sealed media delivery path and preventing leakage or backflow. The internal structure of the gearbox cover 7 cooperates with the active gear 10 and planetary gear 12 to reduce and adjust the output speed of motor 9, so that the rotating frame 3 and roller 5 maintain a suitable rotation speed. This ensures stable media delivery flow and avoids excessive wear of peristaltic tube 6 due to excessive speed, thus extending the service life of the equipment.

[0025] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0026] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this 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 be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A planetary peristaltic pump, comprising a pump housing (1), characterized in that: The pump housing (1) is movably connected to a rotating frame (3). A gearbox cover (7) is movably connected to the right side of the rotating frame (3). A motor base (8) is provided on the right side of the gearbox cover (7). A motor (9) is provided on the right side of the motor base (8). An active gear (10) is fixedly connected to the output end of the motor (9). A planetary gear (12) meshes with one side of the active gear (10). A planetary carrier (13) is fixedly connected to one side of the planetary gear (12). One side of the planetary carrier (13) is inserted into the rotating frame (3). A roller (5) is movably connected to one side of the rotating frame (3) through a pin (4). A peristaltic tube (6) is provided on one side of the roller (5). A connector (2) is connected to the top of the peristaltic tube (6).

2. A planetary peristaltic pump according to claim 1, characterized in that: A connector clip (14) is fixedly connected to one side of the connector (2), and a movable groove is provided on the top of the pump housing (1), and an elastic clip (15) is fixedly connected to the inner wall of the movable groove. The elastic clip (15) is adapted to the connector clip (14).

3. A planetary peristaltic pump according to claim 1, characterized in that: The outer side of the motor base (8) is fixedly connected to a first buckle (16), and the inner wall of the gearbox cover (7) is fixedly connected to a second buckle (17). The first buckle (16) and the second buckle (17) are compatible.

4. A planetary peristaltic pump according to claim 1, characterized in that: The outer side of the pump housing (1) is fixedly connected with a protrusion, and the left side of the gearbox cover (7) is provided with a rotating slot, and the protrusion is adapted to the rotating slot.

5. A planetary peristaltic pump according to claim 1, characterized in that: A plug rod is fixedly connected to the left side of the inner cavity of the pump housing (1), and a slot is opened in the inner cavity of the rotating frame (3), and the slot is adapted to the plug rod. The motor base (8) is connected to the motor (9) by screws (11).

Images