Miniature pump

Abstract

The present application relates to peristaltic pump technical field, especially to a kind of micro pump, hinged with flip cover on pump body, and pressure block and roller assembly are arranged in pump body, roller assembly includes roller, roller support and roller drive motor, roller is installed on roller support, roller support is fixedly connected on the output shaft of roller drive motor, motor shell of roller drive motor is fixedly connected on pump body, flip cover is connected with pressure block by connecting block, and limit mechanism is arranged between pressure block and pump body.The present application links the structure of flip cover and pressure block, compared with the structure of the existing peristaltic pump, the volume of corresponding peristaltic pump can be smaller, and the production cost is also reduced.Pump head and roller drive motor adopt integrated design, simplify the power transmission process, effectively improve the precision of peristaltic pump, peristaltic pump shakes smaller when running, greatly reduce noise.

Description

Technical Field

[0001] This invention relates to the field of peristaltic pump technology, and in particular to a micro pump. Background Technology

[0002] A peristaltic pump is a common type of liquid pump. During operation, a roller assembly on the pump head is driven to continuously squeeze a tubing, thereby propelling the liquid within the tubing. It features high precision, low shear force, good sealing, and ease of use, making it widely used in medical, chemical, and biological fields.

[0003] However, with the development of technology, the demand for peristaltic pumps is becoming more and more diversified. Miniature peristaltic pumps are suitable for use environments with small space and high precision requirements. Existing miniature peristaltic pumps have a relatively complex structure, making it difficult to miniaturize them, and they are also relatively expensive. Summary of the Invention

[0004] To address the above problems, the purpose of this invention is to provide a micro pump with a simple structure and low cost.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a micro pump, comprising a pump body, a hinged flip cover, a pressure block and a roller assembly within the pump body, the roller assembly including a roller, a roller bracket and a roller drive motor, the roller being mounted on the roller bracket, the roller bracket being fixedly connected to the output shaft of the roller drive motor, and the motor housing of the roller drive motor being fixedly connected to the pump body.

[0006] The flip cover and the pressure block are connected by a connecting block. One end of the connecting block is mounted on the hinge support shaft between the flip cover and the housing, and the other end of the connecting block is mounted on the lower part of the pressure block. A limiting mechanism is provided between the pressure block and the pump body.

[0007] In the above technical solution, the pressure block has elongated holes on both sides, the pressure block shaft passes through the pressure block and is installed in the elongated holes at both ends, and a spring is installed inside the pressure block. One end of the spring abuts against the pressure block shaft, and the other end abuts against the inner side of the end of the pressure block.

[0008] In the above technical solution, the pressure block is provided with two spring mounting holes, and the spring is installed in the spring mounting holes.

[0009] In the above technical solution, the limiting mechanism is a buckle on the pressure block and a pressure block limiting hole on the pump body, and the buckle is installed in the pressure block limiting hole.

[0010] In the above technical solution, the limiting mechanism consists of a guide rail and a protrusion respectively installed on the pressure block and the pump body, and the pressure block can move back and forth along the guide rail.

[0011] In the above technical solution, the flip cover is provided with a hinge support, the hinge shaft passes through the hinge support and is mounted on the housing at both ends, the connecting block is mounted on the hinge support through a connecting shaft, and the connecting shaft is arranged parallel to the hinge shaft.

[0012] In the above technical solution, one end of the pump body is provided with two guide holes, and a pipe clamping mechanism is provided on the guide holes. The pipe clamping mechanism includes a base plate, and both ends of the base plate are hinged with opening and closing pieces. The upper end of the opening and closing piece is provided with an opening and closing lever, and the lower end of the opening and closing piece is provided with a linkage groove. An elastic element is provided between the two opening and closing pieces, and the two ends of the elastic element are respectively installed on the linkage groove of the corresponding side opening and closing piece.

[0013] In the above technical solution, the elastic element is an elastic band, and the two ends of the elastic band are mounted on the linkage grooves of the corresponding side opening and closing pieces.

[0014] In the above technical solution, the elastic element is a tension spring, and the two ends of the tension spring are mounted on the linkage groove of the corresponding side opening and closing plate.

[0015] In the above technical solution, the opening and closing piece is provided with a first tube-holding groove, and the substrate is provided with a second tube-holding groove at the corresponding position of the first tube-holding groove.

[0016] In summary, the advantages of the technical solution of this invention compared with traditional technical means are as follows: This invention links the flip cover and the pressing block structure. The flip cover drives the pressing block to move through the connecting block. When the flip cover is opened, it can move the pressing block away from the roller assembly of the peristaltic pump, making it easier to insert and remove the tube. When the flip cover is closed, it moves the pressing block closer to the roller assembly of the peristaltic pump, thereby pressing the tube. Compared with the existing peristaltic pump, this structure is simpler, and the peristaltic pump can be made smaller, while also reducing production costs.

[0017] The pump head and roller drive motor are designed as a single unit. The motor housing is directly fixed to the pump body, and the roller bracket is fixedly connected to the output shaft of the roller drive motor. This simplifies the power transmission process, effectively improves the accuracy of the peristaltic pump, reduces vibration during operation, and greatly reduces noise generation. Attached Figure Description

[0018] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective;

[0021] Figure 3 This is a cross-sectional schematic diagram of the invention;

[0022] Figure 4 for Figure 1 A 3D structural diagram without the flip cover;

[0023] Figure 5 This is a three-dimensional structural diagram of the flip cover in the open state of the present invention;

[0024] Figure 6 for Figure 5 A structural decomposition diagram;

[0025] Figure 7 This is a side view of the pressure block and the flip cover in this invention;

[0026] Figure 8 This is a cross-sectional schematic diagram of the pressure block in this invention;

[0027] Figure 9 This is a three-dimensional structural diagram of the pressure block in this invention;

[0028] Figure 10 This is a three-dimensional schematic diagram of the pipe clamp mechanism in this invention;

[0029] Figure 11 This is a schematic diagram of the three-dimensional structure of the substrate in this invention;

[0030] Figure 12 This is a three-dimensional structural diagram of the opening and closing piece in this invention;

[0031] Figure 13 A three-dimensional structural diagram of a pipe clamp mechanism fitted with a conduit;

[0032] The following are the labeling details: 100, Pump body; 110, Pressure block limiting hole; 120, Guide hole; 200, Flip cover; 210, Connecting block; 220, Hinge support shaft; 230, Hinge support; 240, Connecting shaft; 300, Pressure block; 310, Pressure block shaft; 320, Elongated hole; 330, Spring; 340, Spring mounting hole; 350, Snap fastener; 400, Roller assembly; 410, Roller; 420, Roller bracket. ; 430, Roller drive motor; 431, Motor housing; 432, Motor fixing bolt; 500, Pipe clamp assembly; 510, Base plate; 511, Second pipe clamping groove; 512, Fixing part; 513, Pipe clamping part; 520, Opening and closing plate; 521, Opening and closing wrench; 522, Linkage groove; 523, First pipe clamping groove; 530, Elastic element; 531, Elastic band; 600, Conduit; 610, Conduit boss. Detailed Implementation

[0033] Based on the preferred embodiments of the present invention, and through the following description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

[0034] The invention will be further described with reference to the following figures:

[0035] like Figures 1-13 As shown, a miniature pump has a pump body 100, a hinged flap 200 on the pump body 100, a pressure block 300 and a roller assembly 400 inside the pump body 100, the roller assembly 400 including a roller 410, a roller bracket 420 and a roller drive motor 430, the roller 410 being mounted on the roller bracket 420, the roller bracket 420 being fixedly connected to the output shaft of the roller drive motor 430, and the motor housing 431 of the roller drive motor 430 being fixedly connected to the pump body 100.

[0036] The pump head and roller drive motor 430 are integrated into one unit. The motor housing 431 is directly mounted on the pump body 100 and fixed by the motor fixing bolts 432. The roller bracket 420 is fixedly connected to the output shaft of the roller drive motor 430. This simplifies the power transmission process, effectively improves the accuracy of the peristaltic pump, reduces vibration during operation, and greatly reduces noise generation.

[0037] The flip cover 200 and the pressure block 300 are connected by a connecting block 210. One end of the connecting block 400 is mounted on the hinge support shaft 220 of the flip cover 200 and the housing 100. The other end of the connecting block 210, the pressure block shaft 310, is mounted on the lower part of the pressure block 300. A limiting mechanism is provided between the pressure block 300 and the pump body 100.

[0038] like Figure 7 , 9 As shown, the pressure block 300 has elongated holes 320 on both sides. The pressure block shaft 310 passes through the pressure block 300 and is installed in the elongated holes 320 at both ends. A spring 330 is installed inside the pressure block 300. One end of the spring 330 abuts against the pressure block shaft 310, and the other end abuts against the inner side of the end of the pressure block 300.

[0039] like Figure 8 As shown, the pressure block 300 is provided with two spring mounting holes 340, and the spring 330 is installed in the spring mounting holes 340.

[0040] like Figure 6 , 7As shown in Figure 9, the limiting mechanism consists of a buckle 350 on the pressure block 300 and a pressure block limiting hole 110 on the pump body 100, with the buckle 350 installed in the pressure block limiting hole 110.

[0041] The limiting mechanism consists of a guide rail and a protrusion respectively installed on the pressure block 300 and the pump body 100, and the pressure block 300 can reciprocate along the guide rail.

[0042] The flip cover 200 is provided with a hinge support 230, the hinge shaft 220 passes through the hinge support 230 and is mounted on the housing 100 at both ends, the connecting block 210 is mounted on the hinge support 230 through the connecting shaft 240, and the connecting shaft 240 is arranged parallel to the hinge shaft 230.

[0043] The pump body 100 has two guide holes 120 at one end, and a pipe clamping mechanism 500 is provided on the guide hole 120. The pipe clamping mechanism 500 includes a base plate 510, and opening and closing pieces 520 are hinged to both ends of the base plate 510. The upper end of the opening and closing piece 520 is provided with an opening and closing lever 521, and the lower end of the opening and closing piece 520 is provided with a linkage groove 522. An elastic member 530 is provided between the two opening and closing pieces 520. The two ends of the elastic member 530 are respectively installed on the linkage groove 522 of the corresponding side opening and closing piece 520. The pipe clamping mechanism 500 fixes the guide tube 600 through the base plate 510 and the opening and closing pieces 520 hinged to its two ends. The guide tube boss 610 on the guide tube 600 is stuck on the outside of the pipe clamping mechanism 500. The pipe clamping mechanism 500 has a simple structure, occupies less space, is easy to use, and has a lower cost.

[0044] like Figure 10 , 13 As shown, the elastic element 530 is an elastic band 531, and the two ends of the elastic band 531 are mounted on the linkage groove 522 of the corresponding side opening and closing piece 120.

[0045] Alternatively, the elastic element 530 can be a tension spring, with both ends of the tension spring mounted on the linkage groove 522 of the corresponding side opening and closing piece 520.

[0046] like Figure 10 , 12 As shown, the opening and closing piece 520 is provided with a first tube-holding groove 523, and the substrate 510 is provided with a second tube-holding groove 511 at the corresponding position of the first tube-holding groove 523.

[0047] In this invention, the flip cover 200 is synchronously linked with the pressure block 300 through the connecting block 210. When the flip cover 200 is opened, the pressure block 300 is pulled away from the roller assembly 400, and the conduit can be placed between the pressure block 300 and the roller assembly 400. When the flip cover 200 is closed, the pressure block 300 is pushed closer to the roller assembly 400 until the conduit can be clamped.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A miniature pump having a pump body (100), characterized in that: A flip cover (200) is hinged to the pump body (100). The pump body (100) contains a pressure block (300) and a roller assembly (400). The roller assembly (400) includes a roller (410), a roller bracket (420), and a roller drive motor (430). The roller (410) is mounted on the roller bracket (420), which is fixedly connected to the output shaft of the roller drive motor (430). The motor housing (431) of the roller drive motor (430) is fixedly connected to the pump body (100). The flip cover (200) and the pressure block (300) are connected by a connecting block (210). One end of the connecting block (210) is mounted on the hinge shaft (220) between the flip cover (200) and the housing (100), and the other end of the connecting block (210) is mounted on the lower part of the pressure block (300). A limiting mechanism is provided between the pressure block (300) and the pump body (100). The pump body (100) has two guide holes (120) at one end, and a pipe clamping mechanism (500) is provided on the guide holes (120). The pipe clamping mechanism includes a base plate (510), and opening and closing pieces (520) are hinged to both ends of the base plate (510). An opening and closing lever (521) is provided at the upper end of the opening and closing piece (520), and a linkage groove (522) is provided at the lower end of the opening and closing piece (520). An elastic element (530) is provided between the two opening and closing pieces (520), and the two ends of the elastic element (530) are respectively installed on the linkage groove (522) of the corresponding side opening and closing piece (520). The elastic element (530) is a tension spring, and the two ends of the tension spring are mounted on the linkage groove (522) of the corresponding side opening and closing piece (520).

2. The micro pump according to claim 1, characterized in that: The pressure block (300) has elongated holes (320) on both sides. The pressure block shaft (310) passes through the pressure block (300) and its two ends are installed in the elongated holes (320). A spring (330) is installed inside the pressure block (300). One end of the spring (330) abuts against the pressure block shaft (310), and the other end abuts against the inner side of the end of the pressure block (300).

3. The micro pump according to claim 2, characterized in that: The pressure block (300) is provided with two spring mounting holes (340), and the spring (330) is installed in the spring mounting holes (340).

4. The micro pump according to claim 1, characterized in that: The limiting mechanism is a buckle (350) on the pressure block (300) and a pressure block limiting hole (110) on the pump body (100), with the buckle (350) installed in the pressure block limiting hole (110).

5. The micro pump according to claim 1, characterized in that: The limiting mechanism consists of a guide rail and a protrusion respectively installed on the pressure block (300) and the pump body (100), and the pressure block (300) can reciprocate along the guide rail.

6. The micro pump according to claim 1, characterized in that: The flip cover (200) is provided with a hinge support (230), the hinge shaft (220) passes through the hinge support (230) and is mounted on the housing (100) at both ends, the connecting block (210) is mounted on the hinge support (230) through the connecting shaft (240), and the connecting shaft (240) is arranged parallel to the hinge shaft (220).

7. The micro pump according to claim 1, characterized in that: The elastic element (530) is an elastic band (531), and the two ends of the elastic band (531) are mounted on the linkage groove (522) of the corresponding side opening and closing piece (520).

8. The micro pump according to claim 1, characterized in that: The opening and closing piece (520) is provided with a first tube slot (523), and the substrate (510) is provided with a second tube slot (511) at the corresponding position of the first tube slot (523).

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