Peristaltic pump convenient for precisely controlling flow

Abstract

The utility model discloses a peristaltic pump facilitating precise flow control. The peristaltic pump comprises a control box, a protective shell is installed at one end of the control box, a pipeline groove is formed in the protective shell, a pump pipe is installed in the pipeline groove, the two ends of the pump pipe are each connected with an installation end, and one end of each installation end is connected with a connecting pipe; a driving motor is connected to one end of the rotating disc, linkage rods are connected to the two sides of the rotating disc, micro push rods are installed in the linkage rods, telescopic rods are connected to one ends of the micro push rods, and extrusion heads are connected to one ends of the telescopic rods. Compared with an existing device, the peristaltic pump capable of conveniently and precisely controlling the flow has the advantages that the telescopic rod and the extrusion head can be driven to stretch out and draw back through the micro push rod, so that the relative position of the extrusion head and the pump pipe can be adjusted through mutual stretching of the linkage rod and the telescopic rod, and the flow can be adjusted through negative pressure in the pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of peristaltic pumps, in particular to a peristaltic pump which is convenient for precise flow control. Background Art

[0002] A peristaltic pump is a device used to transport fluids. It consists of a driver, a pump head, and a flexible hose. The pump operates by repeatedly compressing an elastic tube, causing the fluid within the tube to move in a specific direction. Peristaltic pumps offer advantages such as pollution-free operation, high precision, quick tubing replacement, reversible flow, dry operation capability, and low maintenance costs.

[0003] A Chinese patent with the authorization publication number CN219654860U discloses a peristaltic pump, comprising: a peristaltic pump pressure block, a pressure block lifting device, a support, and a roller assembly. The peristaltic pump pressure block is mounted on the support; the roller assembly is located below the peristaltic pump pressure block; the pressure block lifting device is used to lift the peristaltic pump pressure block; the rear end of the peristaltic pump pressure block is detachably fixed to the support; and a guide mechanism is provided on the support, which is used to limit the movement direction of the pressure block lifting device. This solution provides a pressure block lifting method, which allows the pump head pressure block to be lifted when the pump head is not in operation, preventing the pressure block from squeezing the hose for a long time, causing problems such as hose closure and adhesion.

[0004] Although the peristaltic pump mentioned above provides a method for lifting the pressure block, so that the pump head pressure block can be lifted when the pump head is not running, thereby avoiding the pressure block squeezing the hose for a long time, causing problems such as hose closure and adhesion, but the relative position between the existing peristaltic pump head and the hose is generally fixed, resulting in a relatively fixed flow rate of the pump body, which makes it impossible to accurately control the flow rate of the pump body, affecting the actual use effect. For this reason, we propose a peristaltic pump that is easy to precisely control the flow rate. Utility Model Content

[0005] The purpose of the present utility model is to provide a peristaltic pump that is convenient for precise control of flow rate, so as to solve the problem raised in the above background technology that the relative position between the extrusion pump head and the hose of the existing peristaltic pump is generally fixed, so that the flow speed of the pump body is also relatively fixed, and the flow speed of the pump body cannot be accurately controlled, which affects the actual use effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a peristaltic pump for precisely controlling flow, comprising:

[0007] A control box, wherein a protective housing is installed at one end of the control box, and a pipe groove is provided inside the protective housing. A pump pipe is installed in the pipe groove, and both ends of the pump pipe are connected to mounting ends, and one end of the mounting end is connected to a connecting pipe;

[0008] A turntable is installed in the middle of one end of the protective shell, one end of the turntable is connected to a drive motor, both sides of the turntable are connected to linkage rods, and a micro push rod is installed inside the linkage rod, one end of the micro push rod is connected to a telescopic rod, and one end of the telescopic rod is connected to an extrusion head.

[0009] Preferably, the pipe groove matches the size of the pump pipe, and the connecting pipe is connected to the pump pipe through a mounting end.

[0010] Preferably, the driving motor forms a rotating structure with the extrusion head through a linkage rod, and the extrusion head is symmetrically distributed about the vertical center line of the turntable.

[0011] Preferably, the micro push rod forms a telescopic structure with the extrusion head through a telescopic rod, and the linkage rod and the telescopic rod are stretched against each other.

[0012] Preferably, the protective housing is further provided with:

[0013] The packaging plate is installed at one end of the protective shell, and guide grooves are provided on both sides of the connection between the packaging plate and the protective shell.

[0014] Preferably, the packaging plate is slidably engaged with the protective shell through guide slots, and the guide slots are symmetrically distributed about the vertical center line of the protective shell.

[0015] Compared with the prior art, the present invention provides a peristaltic pump that facilitates precise flow control and has the following beneficial effects:

[0016] The utility model can drive the telescopic rod and the extrusion head to extend and retract through the micro push rod, so that the relative position of the extrusion head and the pump tube can be adjusted by the mutual stretching of the linkage rod and the telescopic rod, so that the flow rate can be adjusted by the negative pressure in the tube, avoiding the problem that the relative position between the extrusion pump head and the hose of the existing peristaltic pump is relatively fixed, thereby resulting in a relatively fixed flow speed of the pump body, making it impossible to accurately control the flow speed of the pump body, thereby affecting the actual use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the protective housing of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal side structure of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0021] In the figure: 1. Control box; 2. Protective shell; 3. Pipe groove; 4. Pump pipe; 5. Mounting end; 6. Connecting pipe; 7. Turntable; 8. Drive motor; 9. Linkage rod; 10. Extrusion head; 11. Telescopic rod; 12. Micro push rod; 13. Packaging plate; 14. Guide slide. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-3 A peristaltic pump for precise flow control comprises: a control box 1, a protective shell 2 is installed at one end of the control box 1, and a pipe groove 3 is provided inside the protective shell 2, a pump tube 4 is installed in the pipe groove 3, and both ends of the pump tube 4 are connected to mounting ends 5, and one end of the mounting end 5 is connected to a connecting pipe 6; the pipe groove 3 matches the size of the pump tube 4, and the connecting pipe 6 is connected to the pump tube 4 through the mounting end 5; the pipe groove 3 can facilitate the installation limit of the pump tube 4, and the mounting end 5 can facilitate the connection between the connecting pipe 6 and the pump The tube 4 is connected and installed; the packaging plate 13 is installed at one end of the protective shell 2, and guide grooves 14 are provided on both sides of the connection between the packaging plate 13 and the protective shell 2; the packaging plate 13 is connected to the protective shell 2 by sliding engagement through the guide grooves 14, and the guide grooves 14 are symmetrically distributed about the vertical center line of the protective shell 2; the guide grooves 14 can facilitate the up and down movement of the packaging plate 13, thereby facilitating the opening and closing of the protective shell 2, and conveniently opening the protective shell 2 to inspect or replace the pump tube 4 when necessary.

[0024] See also Figure 2-4A peristaltic pump that is convenient for precise flow control includes: a turntable 7, which is installed in the middle of one end of the protective shell 2, one end of the turntable 7 is connected to a drive motor 8, both sides of the turntable 7 are connected to a linkage rod 9, and a micro push rod 12 is installed inside the linkage rod 9. The drive motor 8 forms a rotating structure with the extrusion head 10 through the linkage rod 9, and the extrusion head 10 is symmetrically distributed about the vertical center line of the turntable 7; the drive motor 8 can drive the linkage rod 9 and the extrusion head 10 to rotate, and the pump tube 4 can be squeezed in turn during the rotation of the extrusion head 10. Thereby, negative pressure can be formed in the tube, achieving the effect of extracting the liquid; one end of the micro push rod 12 is connected to the telescopic rod 11, and one end of the telescopic rod 11 is connected to the extrusion head 10; the micro push rod 12 forms a telescopic structure between the telescopic rod 11 and the extrusion head 10, and the linkage rod 9 and the telescopic rod 11 stretch each other; the micro push rod 12 can drive the telescopic rod 11 and the extrusion head 10 to extend and retract, so that the relative position of the extrusion head 10 and the pump tube 4 can be adjusted through the mutual stretching of the linkage rod 9 and the telescopic rod 11, so that the flow rate can be adjusted by the negative pressure in the tube.

[0025] Working principle: When using the peristaltic pump that is convenient for precise flow control, first install the pump tube 4 into the pipe groove 3, then connect and install the connecting tube 6 to the pump tube 4 through the installation end 5, connect the connecting tube 6 at one end to the water source, start the drive motor 8, and the drive motor 8 drives the linkage rod 9 and the extrusion head 10 to rotate. During the rotation of the extrusion head 10, the pump tube 4 can be squeezed in turn, thereby forming a negative pressure in the tube to achieve the effect of extracting the liquid; then when the flow needs to be adjusted, start the micro push rod 12, the micro push rod 12 drives the telescopic rod 11 and the extrusion head 10 to extend and retract, so that the relative position of the extrusion head 10 and the pump tube 4 can be adjusted by the mutual stretching of the linkage rod 9 and the telescopic rod 11, and the flow rate can be adjusted by the negative pressure in the tube; finally, the guide slot 14 can facilitate the up and down movement of the packaging plate 13, thereby facilitating the opening and closing of the protective shell 2, and facilitating the regular opening of the protective shell 2 to inspect or replace the pump tube 4. This is the working principle of the peristaltic pump that is convenient for precise flow control.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A peristaltic pump that facilitates precise flow control, characterized in that: include: A control box (1), wherein a protective housing (2) is installed at one end of the control box (1), and a pipe groove (3) is provided inside the protective housing (2), a pump pipe (4) is installed in the pipe groove (3), and both ends of the pump pipe (4) are connected to mounting ends (5), and one end of the mounting end (5) is connected to a connecting pipe (6); A turntable (7) is installed in the middle of one end of the protective shell (2), one end of the turntable (7) is connected to a drive motor (8), both sides of the turntable (7) are connected to linkage rods (9), and a micro push rod (12) is installed inside the linkage rod (9), one end of the micro push rod (12) is connected to a telescopic rod (11), and one end of the telescopic rod (11) is connected to an extrusion head (10).

2. A peristaltic pump for precise flow control according to claim 1, characterized in that: The pipe groove (3) matches the size of the pump pipe (4), and the connecting pipe (6) is connected to the pump pipe (4) through the mounting end (5).

3. A peristaltic pump for precise flow control according to claim 1, characterized in that: The driving motor (8) forms a rotating structure with the extrusion head (10) through a linkage rod (9), and the extrusion head (10) is symmetrically distributed with respect to the vertical center line of the turntable (7).

4. A peristaltic pump for precise flow control according to claim 1, characterized in that: The micro push rod (12) forms a telescopic structure with the extrusion head (10) through the telescopic rod (11), and the linkage rod (9) and the telescopic rod (11) are stretched with each other.

5. A peristaltic pump for precise flow control according to claim 1, characterized in that: The protective housing (2) is further provided with: A packaging plate (13) is installed at one end of the protective shell (2), and guide grooves (14) are provided on both sides of the connection between the packaging plate (13) and the protective shell (2).

6. A peristaltic pump for precise flow control according to claim 5, characterized in that: The packaging plate (13) is connected to the protective shell (2) by sliding engagement via guide slots (14), and the guide slots (14) are symmetrically distributed with respect to the vertical center line of the protective shell (2).

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