Microflow control device

Abstract

The utility model discloses a microflow control device which comprises a shell, the shell is installed on external equipment, an adjusting mechanism is arranged on the shell, the adjusting mechanism comprises a motor, a middle disc, a fixing sleeve, a fluctuation wheel, a rubber pipe, a pressing disc, a spring, a thrust bearing, a clamping mechanism and an unfastening mechanism, the motor is installed on the shell, and the fixing sleeve is installed on the middle disc. A middle disc is installed at the extending end of the motor, a rubber pipe is installed in the shell, the two ends of the rubber pipe are connected to external equipment respectively, the motor is installed on the shell, and the fluctuation wheel rotates in the fixing sleeve and is pressed on the rubber pipe by rotating the middle disc, so that the flow speed and flow of fluid in the rubber pipe can be adjusted according to needs. Due to the design of the adjusting mechanism, a user can flexibly adjust the micro-flow control of the fluid according to different experiment or production requirements, and the adaptability and the control effect of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-flow control, and more particularly to a micro-flow control device. Background Art

[0002] Microfluidic control devices are currently used in laboratories and industrial production as precision instruments, capable of manipulating fluids at the microscopic scale. However, these existing devices have limitations in practical applications, primarily due to their limited adjustability. This limitation primarily stems from the inability to flexibly adjust the devices to varying experimental conditions or production requirements, which, to a certain extent, impacts the effectiveness and accuracy of microfluidic control.

[0003] First, existing microfluidic control devices often lack sufficient adaptability in their design. In scientific research and industrial applications, factors such as microfluidic properties, flow rate, flow rate, and temperature may vary depending on experimental objectives or changes in production processes. However, existing devices are often only able to adapt to one or a few fixed operating conditions and cannot adjust to these changes. This inflexibility limits the application of microfluidic control devices in a wider range of fields, resulting in poor control effects in certain specific situations, and may even affect the efficiency and product quality of the entire experimental or production process.

[0004] Secondly, due to the limited adjustment capabilities of existing microfluidic control devices, they often struggle to meet the high precision requirements required for precise control of microfluidic behavior. For example, precise control of fluid flow rates and mixing ratios is crucial in microfluidic experiments in fields such as biomedical research, drug screening, and synthetic reactions. If the device cannot be adjusted to the specific needs of the experiment, it can lead to inaccurate results or even experimental failure. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the problems existing in the prior art, the present invention provides a microfluidic control device to solve the technical problems mentioned in the background technology.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a microfluidic control device, comprising a shell, which is mounted on an external device, and an adjusting mechanism is provided on the shell, and the adjusting mechanism includes a motor, an intermediate disk, a fixed sleeve, a ripple wheel, a rubber tube, a pressure plate, a spring, a thrust bearing, a clamping mechanism and a release mechanism, the motor is mounted on the shell, an intermediate disk is mounted on the protruding end of the motor, a rubber tube is mounted in the shell, and both ends of the rubber tube are respectively connected to the external device, a plurality of receiving grooves are equidistantly provided on the intermediate disk, and a fixed sleeve is respectively mounted in each of the receiving grooves, the ripple wheel is rotatably connected in the fixed sleeve, the ripple wheel is pressed on the rubber tube, the clamping mechanism is installed on the fixed sleeve and the pressure plate, one end of the spring is connected to the pressure plate, and the other end of the spring is connected to the thrust bearing, the thrust bearing is pressed on the ripple wheel, and the release mechanism is mounted in the fixed sleeve.

[0009] The utility model is further configured as follows: the clamping mechanism includes a clamping rod and a one-way plate, the clamping rod is installed on the pressure plate, the clamping rod is slidably connected in the fixed sleeve, a plurality of one-way plates are installed on the inner wall of the fixed sleeve, a plurality of clamping grooves are opened on the clamping rod, and the one-way plates are clamped in the clamping grooves. This design enables a stable clamping to be formed between the clamping rod and the one-way plate, thereby ensuring the firm installation of the wave wheel.

[0010] The utility model is further configured such that a receiving plate is slidingly provided in the fixed sleeve, the clamping rod abuts against the receiving plate, and a receiving spring is provided on the lower end surface of the receiving plate. This design enables the receiving plate to withstand the pressure of the clamping rod and provide rebound force through the receiving spring, thereby ensuring the stability and reliability of the clamping mechanism during operation.

[0011] The utility model is further configured such that a plurality of receiving springs are provided, and a fixing ring is provided on each of the plurality of receiving springs, which is clamped in a fixing sleeve. This design enables the receiving spring to evenly distribute pressure and is fixed in the fixing sleeve through the fixing ring, thereby enhancing the load-bearing capacity and stability of the receiving plate.

[0012] The utility model is further configured as follows: the unlocking mechanism includes an unlocking sleeve and a follower plate, the unlocking sleeve is slidably connected to the clamping rod, the follower plate is installed on the inner wall of the unlocking sleeve, and a plurality of guide grooves are provided on the side wall of the clamping rod, and the follower plate is slidably connected in the guide grooves. This design enables the unlocking sleeve and the follower plate to slide along the clamping rod, and provides a guiding effect through the guide grooves, thereby ensuring that the unlocking mechanism is smooth and precise during operation.

[0013] The utility model is further configured such that a plurality of the follower plates are provided with positioning rods, a positioning hole is opened in the fixed sleeve, and the positioning rods are slidably connected in the positioning holes. This design enables the positioning rods to slide along the positioning holes and provide support through the follower plates, thereby ensuring the stability and accuracy of the unlocking mechanism during operation.

[0014] The present invention is further configured such that a push spring is coaxially provided on the positioning rod, and the push spring abuts against the clamping rod. This design enables the push spring to provide a pushing force, so that the positioning rod can slide smoothly during operation, and provides reverse support through the rebound force of the push spring, thereby ensuring the flexibility and reliability of the unlocking mechanism during operation.

[0015] The utility model is further configured such that an annular groove is provided on the side wall of the unlocking sleeve. This design enables the unlocking sleeve to slide along the annular groove during operation, providing additional guidance and support, thereby improving the stability and smoothness of the unlocking mechanism during operation.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a microfluidic control device with the following beneficial effects:

[0018] 1. The adjustment mechanism achieves precise adjustment of the microfluidic control device through the cooperation of components such as the motor, intermediate disk, fixed sleeve, fluctuation wheel, and rubber tube. The motor is installed on the housing. By rotating the intermediate disk, the fluctuation wheel rotates in the fixed sleeve and presses on the rubber tube, so that the flow rate and flow of the fluid in the rubber tube can be adjusted as needed. The design of this adjustment mechanism enables users to flexibly adjust the microfluidic control of the fluid according to different experimental or production needs, improving the adaptability and control effect of the device.

[0019] 2. The clamping mechanism realizes the rapid installation and stable clamping of the wave wheel through the cooperation of the clamping rod and the one-way piece. The clamping rod is inserted into the fixed sleeve, the one-way piece is clamped in the clamping groove, and the thrust bearing is pressed on the wave wheel under the action of the spring, ensuring the firm installation of the wave wheel. The design of this clamping mechanism makes the installation process simple and quick, while ensuring the stability and safety of the wave wheel at high-speed rotation, and improving the efficiency and reliability of the device.

[0020] 3. The unlocking mechanism realizes the rapid release and adjustment of the clamping mechanism through the cooperation of the unlocking sleeve and the follower plate. The unlocking sleeve is slidably connected to the clamping rod, and the follower plate slides in the guide groove. Through the interaction of the positioning rod and the push spring, the unlocking sleeve can move downward to release the clamping of the one-way plate and the clamping groove. The design of this unlocking mechanism enables the user to quickly and conveniently unlock when the user needs to adjust the number of fluctuation wheels or perform other maintenance operations, which greatly improves the flexibility of the device and the convenience of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a microfluidic control device in the present invention;

[0022] Figure 2This is a structural diagram of the fixing sleeve in the present utility model;

[0023] Figure 3 For this utility model Figure 2 Schematic diagram of the exploded cross-sectional structure;

[0024] Figure 4 This is a schematic diagram of the structure of the untying sleeve in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the receiving plate in the utility model.

[0026] In the figure: 1. Housing; 2. Motor; 3. Intermediate plate; 4. Fixed sleeve; 5. Fluctuating wheel; 6. Rubber tube; 7. Pressure plate; 8. Spring; 9. Thrust bearing; 10. Receiver groove; 11. Clamping rod; 12. One-way plate; 13. Clamping groove; 14. Receiver plate; 15. Receiver spring; 16. Fixed ring; 17. Unlocking sleeve; 18. Follower plate; 19. Guide groove; 20. Positioning rod; 21. Positioning hole; 22. Push spring; 23. Annular groove. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0030] See also Figure 1-5A microfluidic control device includes a shell 1, which is installed on an external device. The shell 1 is provided with an adjustment mechanism, which includes a motor 2, an intermediate disk 3, a fixed sleeve 4, a fluctuation wheel 5, a rubber tube 6, a pressure plate 7, a spring 8, a thrust bearing 9, a clamping mechanism and an unclamping mechanism. The motor 2 is installed on the shell 1, and the intermediate disk 3 is installed on the protruding end of the motor 2. A rubber tube 6 is installed in the shell 1, and the two ends of the rubber tube 6 are respectively connected to the external device. A plurality of receiving grooves 10 are equidistantly opened on the intermediate disk 3, and a fixed sleeve 4 is installed in each receiving groove 10. The fluctuation wheel 5 is rotatably connected to the fixed sleeve 4, and the fluctuation wheel 5 is pressed on the rubber tube 6. The clamping mechanism is installed on the fixed sleeve 4 and the pressure plate 7. One end of the spring 8 It is connected to the pressure plate 7, and the other end of the spring 8 is connected to the thrust bearing 9. The thrust bearing 9 is pressed on the wave wheel 5. The unfastening mechanism is installed in the fixed sleeve 4. The clamping mechanism includes a clamping rod 11 and a one-way piece 12. The clamping rod 11 is installed on the pressure plate 7. The clamping rod 11 is slidably connected in the fixed sleeve 4. A plurality of one-way pieces 12 are installed on the inner wall of the fixed sleeve 4. A plurality of clamping grooves 13 are provided on the clamping rod 11. The one-way piece 12 is clamped in the clamping groove 13. A receiving plate 14 is slidingly provided in the fixed sleeve 4. The clamping rod 11 abuts against the receiving plate 14. A receiving spring 15 is provided on the lower end surface of the receiving plate 14. There are multiple receiving springs 15, and multiple receiving springs 15 are provided with a fixing ring 16, which is clamped in the fixed sleeve 4.

[0031] In this embodiment, when different numbers of fluctuation wheels 5 need to be installed for different situations, the corresponding fluctuation wheel 5 is first rotated and connected to the fixed sleeve 4 at the corresponding position, then the clamping rod 11 is inserted into the fixed sleeve 4, the one-way piece 12 is clamped in the clamping groove 13, and then the thrust bearing 9 is pressed onto the fluctuation wheel 5 under the action of the spring 8, thereby completing the installation process. Since the two ends of the rubber tube 6 are respectively connected to external equipment, the rotation of the motor 2 can drive the fluctuation wheel 5 to be pressed into the rubber tube 6, and then the solution in the rubber tube 6 can be driven to flow, thereby completing the fine-tuning process.

[0032] See also Figure 3 and Figure 4 , as an implementation scheme of the unlocking mechanism: the unlocking mechanism includes an unlocking sleeve 17 and a follower piece 18, the unlocking sleeve 17 is slidably connected to the clamping rod 11, the follower piece 18 is installed on the inner wall of the unlocking sleeve 17, and a plurality of guide grooves 19 are provided on the side wall of the clamping rod 11. The follower piece 18 is slidably connected in the guide groove 19, and a plurality of follower pieces 18 are provided with positioning rods 20. A positioning hole 21 is provided in the fixed sleeve 4, and the positioning rod 20 is slidably connected in the positioning hole 21. A push spring 22 is coaxially provided on the positioning rod 20, and the push spring 22 abuts on the clamping rod 11. An annular groove 23 is provided on the side wall of the unlocking sleeve 17.

[0033] More specifically, when it is necessary to unlock, continue to press on the pressure plate 7, the spring 8 continues to compress, and then the clamping rod 11 presses on the push spring 22, and then drives the positioning rod 20 to slide downward, so that the unlocking sleeve 17 moves downward accordingly, and the unlocking sleeve 17 contacts the one-way piece 12, and then unlocks the one-way piece 12 and the clamping groove 13, so that the clamping rod 11 is pulled out, thereby completing the unlocking process.

[0034] In summary, when the overall equipment is in use or running: when different numbers of fluctuation wheels 5 need to be installed according to different situations, first rotate the corresponding fluctuation wheel 5 to connect it to the fixed sleeve 4 at the corresponding position, then insert the clamping rod 11 into the fixed sleeve 4, and the one-way piece 12 is clamped in the clamping groove 13, and then under the action of the spring 8, the thrust bearing 9 is pressed on the fluctuation wheel 5, thereby completing the installation process. Since the two ends of the rubber tube 6 are respectively connected to external equipment, the rotation of the motor 2 can drive the fluctuation wheel 5 to be pressed into the rubber tube 6, and then the solution in the rubber tube 6 can be driven to flow, so that the fine-tuning process can be completed. When it needs to be unlocked, continue to press on the pressure plate 7, the spring 8 continues to compress, and then the clamping rod 11 presses on the push spring 22, and then drives the positioning rod 20 to slide downward, so that the unlocking sleeve 17 moves downward accordingly, and the unlocking sleeve 17 contacts the one-way piece 12, and then unlocks the one-way piece 12 and the clamping groove 13, so that the clamping rod 11 is pulled out, thereby completing the unlocking process.

[0035] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A microfluidic control device comprising a housing (1), characterized in that: The housing (1) is mounted on an external device. An adjusting mechanism is provided on the housing (1). The adjusting mechanism comprises a motor (2), an intermediate disk (3), a fixing sleeve (4), a wave wheel (5), a rubber tube (6), a pressure plate (7), a spring (8), a thrust bearing (9), a clamping mechanism and a releasing mechanism. The motor (2) is mounted on the housing (1). An intermediate disk (3) is mounted on the protruding end of the motor (2). A rubber tube (6) is mounted in the housing (1). Both ends of the rubber tube (6) are connected to the external device respectively. A plurality of receiving grooves (10) are equidistantly provided on the inter-disk (3), a fixed sleeve (4) is installed in each receiving groove (10), the fluctuating wheel (5) is rotatably connected in the fixed sleeve (4), the fluctuating wheel (5) is pressed on the rubber tube (6), the clamping mechanism is installed on the fixed sleeve (4) and the pressure plate (7), one end of the spring (8) is connected to the pressure plate (7), the other end of the spring (8) is connected to the thrust bearing (9), the thrust bearing (9) is pressed on the fluctuating wheel (5), and the unlocking mechanism is installed in the fixed sleeve (4).

2. The microfluidic control device according to claim 1, wherein: The clamping mechanism comprises a clamping rod (11) and a one-way piece (12); the clamping rod (11) is mounted on the pressure plate (7); the clamping rod (11) is slidably connected in the fixed sleeve (4); a plurality of one-way pieces (12) are mounted on the inner wall of the fixed sleeve (4); a plurality of clamping grooves (13) are formed on the clamping rod (11); and the one-way pieces (12) are clamped in the clamping grooves (13).

3. The microfluidic control device according to claim 2, wherein: A receiving plate (14) is slidably provided in the fixing sleeve (4), the clamping rod (11) abuts against the receiving plate (14), and a receiving spring (15) is provided on the lower end surface of the receiving plate (14).

4. The microfluidic control device according to claim 3, wherein: A plurality of receiving springs (15) are provided, and a fixing ring (16) is provided on each of the receiving springs (15), and the fixing ring (16) is clamped in the fixing sleeve (4).

5. The microfluidic control device according to claim 2, wherein: The unlocking mechanism comprises an unlocking sleeve (17) and a follower plate (18), wherein the unlocking sleeve (17) is slidably connected to the clamping rod (11), and the follower plate (18) is installed on the inner wall of the unlocking sleeve (17), and a plurality of guide grooves (19) are opened on the side wall of the clamping rod (11), and the follower plate (18) is slidably connected in the guide grooves (19).

6. The microfluidic control device according to claim 5, wherein: A plurality of follower plates (18) are provided with positioning rods (20), a positioning hole (21) is provided in the fixing sleeve (4), and the positioning rods (20) are slidably connected in the positioning hole (21).

7. The microfluidic control device according to claim 6, wherein: A push spring (22) is coaxially arranged on the positioning rod (20), and the push spring (22) contacts the clamping rod (11).

8. The microfluidic control device according to claim 7, wherein: An annular groove (23) is provided on the side wall of the untying sleeve (17).

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