CN219590043U

CN219590043U - Dynamic high-precision quantitative adsorption device

Info

Publication number: CN219590043U
Application number: CN202320013715.5U
Authority: CN
Inventors: 王朕; 陈海洋; 王天放
Original assignee: Hangzhou Desinpro Biotechnology Co ltd
Current assignee: Hangzhou Desinpro Biotechnology Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-08-25
Anticipated expiration: 2033-01-04

Abstract

The utility model provides a dynamic high-precision quantitative adsorption device which comprises a first fixing frame, a driving motor, a transmission mechanism, a syringe pump, a first electromagnetic valve, a pressure sensor, a dehydration tank, an adsorption head, a second electromagnetic valve, a waste liquid pumping diaphragm pump, a plurality of pipelines and a control device, wherein the syringe pump is arranged on one side of the first fixing frame, the syringe pump is fixedly connected with the first fixing frame, the driving motor is arranged on one side of the first fixing frame, the driving motor is fixedly connected with the first fixing frame, the transmission mechanism is arranged at the output end of the driving motor, the transmission mechanism is clamped and matched with the output end of the driving motor in a rotating way, the transmission mechanism is fixedly connected with the first fixing frame, the transmission mechanism is fixedly connected with the syringe pump, and the first electromagnetic valve and the pressure sensor are arranged on one side of the first fixing frame. The utility model adopts a dynamic control adsorption mode, meets the adsorption requirement, has the characteristics of high speed, high precision and the like, and can particularly meet the trend of rapidly and accurately reporting the detection result in the industry.

Description

Dynamic high-precision quantitative adsorption device

Technical Field

The utility model relates to an adsorption device, in particular to a dynamic high-precision quantitative adsorption device, and belongs to the technical field of cell sheet making devices.

Background

The cell pelleter adopts the mode of static adsorption to carry out the cell pelleter more, thereby fully contacts slide glass and adsorption liquid and accomplish the cell pelleter, and this mode can cause the local cell stack of slide glass or the condition that local cell is lost, and less use dynamic adsorption mode, carry out the cell pelleter with the mode of negative pressure adsorption in traditional dynamic adsorption mode more, this mode is difficult to hold in the implementation process pressure, still can cause the condition that cell stacks or local cell is lost.

The Chinese patent publication No. CN202903565U discloses a pressure control device of a film type liquid-based thin-layer cell pelleter, which consists of a miniature air pump, four two-position three-way electromagnetic valves and a waste liquid cylinder, and has the functions of automatically switching liquid suction, air discharge, liquid discharge and the like, a pressure sensor is also arranged in a pipeline, the air pressure in a pipeline can be monitored and fed back in real time, the fed back air pressure value is converted and calculated by a controller, and the air pressure value is constant at any required value by adjusting the rotating speed of the miniature air pump. However, the pressure in the device cannot be changed in the implementation process, so that the adsorption quantity cannot be controlled.

Disclosure of Invention

Based on the background, the utility model aims to provide a dynamic high-precision quantitative adsorption device which can meet the adsorption requirement, has high speed and high precision, and solves the problems in the background technology.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a developments high accuracy ration adsorption equipment, includes first mount, driving motor, drive mechanism, syringe pump, first solenoid valve, pressure sensor, dewatering tank, adsorption head, second solenoid valve, drainage liquid diaphragm pump, a plurality of pipeline and controlling means, first mount one side is provided with the syringe pump, syringe pump and first mount fixed connection, first mount one side is provided with driving motor, driving motor and first mount fixed connection, the driving motor output is provided with drive mechanism, drive mechanism and driving motor output joint and normal running fit, drive mechanism and first mount fixed connection, drive mechanism and syringe pump fixed connection, first mount one side is provided with first solenoid valve and pressure sensor, first solenoid valve and pressure sensor all pass through the pipeline intercommunication with first solenoid valve, controlling means and driving motor, first solenoid valve and pressure sensor all electric connection, controlling means includes calculation module and memory module.

The application of the first fixing frame of the dynamic high-precision quantitative adsorption device is that a driving motor, an injection pump and a transmission mechanism play a role in combination and fixation, so that the driving motor, the injection pump and the transmission mechanism are more easily matched with each other, the driving motor can provide power for the transmission of the transmission mechanism, so that the transmission mechanism drives the injection pump to work, a first electromagnetic valve can control the direction of fluid in the device, a pressure sensor can detect the pressure in the device, and a control device stores and records the pressure value of the pressure sensor before the injection pump moves and the pressure value of the pressure sensor after the injection pump moves and calculates the adsorption flow according to the pressure value; the calculation principle of the adsorption flow is that according to an ideal gas state equation pv=nrt, according to a formula (v0+vi-V1) ×p1i=p0×v0, P1i can be obtained, when Pi > P1i, i.e. adsorption is completed, the injection pump is stopped, and the first electromagnetic valve is switched to release redundant negative pressure; wherein, V0: the initial volume of the adsorption liquid in the dehydration tank; p0: an initial air pressure value in the dehydration tank; v1: a target volume of the desired adsorption fluid; t: recording the detected time difference twice; pi: after the injection pump moves, the air pressure value in the dewatering tank is detected for the ith time; vi: after the injection pump moves, the volume value of the adsorption liquid in the dewatering tank is detected for the ith time; p1i: after the syringe pump is moved, the ith detection reaches the air pressure threshold of the target volume.

Preferably, the transmission mechanism comprises a first rotating wheel, a first belt, a second rotating wheel, a fixed rotating wheel, a second belt and a sliding block, wherein the first rotating wheel is arranged on one side of the first fixed frame, which is away from the injection pump, the first rotating wheel is fixedly connected with the first fixed frame, the output end of the driving motor is arranged on one side of the first fixed frame, which is away from the injection pump, the output end of the driving motor is connected with the first rotating wheel through the first belt, the driving motor and the first rotating wheel are both connected with the first belt in a clamping and rotating way, the second rotating wheel is arranged on one side of the first fixed frame, which is away from the first rotating wheel, the second rotating wheel is fixedly connected with the first rotating wheel, the second rotating wheel is arranged on the same side of the second rotating wheel, which is corresponding to the fixed rotating wheel through the second belt, the second rotating wheel is both connected with the second belt in a clamping and rotating way, the sliding block is arranged on one side of the second belt, and the sliding block is fixedly connected with the second belt. The first rotating wheel, the first belt, the second rotating wheel, the fixed rotating wheel and the second belt are mutually matched, and the sliding block can move on one side of the second belt by utilizing the power provided by the driving motor.

Preferably, the injection pump comprises a piston and a pump body, one end of the piston is fixedly connected with the sliding block, the other end of the piston is movably matched with the pump body, and one side of the pump body is fixedly connected with the first fixing frame. The piston is fixedly connected with the sliding block, and when the sliding block moves along with the second belt, the sliding block drives the piston to move in the pump body, so that the injection pump works.

Preferably, the pressure sensor is communicated with the dehydration tank through a pipeline, the dehydration tank is communicated with the second electromagnetic valve through a pipeline, the second electromagnetic valve is communicated with the waste liquid pumping diaphragm pump through a pipeline, and the waste liquid pumping diaphragm pump is communicated with the waste liquid barrel through a pipeline. And setting the direction of fluid in the second electromagnetic valve control device, and setting a waste liquid pumping diaphragm pump to pump liquid from the waste liquid in the dehydration tank, wherein the waste liquid pumped by the waste liquid pumping diaphragm pump enters the waste liquid barrel.

Preferably, a second fixing frame is arranged on one side of the dehydration tank, the dehydration tank is detachably and fixedly connected with the second fixing frame, an adsorption head is arranged at the top of the dehydration tank, and the adsorption head is detachably and fixedly connected with the dehydration tank. The second fixing frame is arranged to combine and fix the dehydration tank and the adsorption head, so that an operator can operate more conveniently.

Preferably, a sliding rail is arranged on one side, adjacent to the sliding block, of the first fixing frame, the sliding rail is fixedly connected with the first fixing frame, and the sliding rail is clamped with the sliding block and is in sliding fit with the sliding block. The sliding rail is arranged to be clamped with the sliding block in a sliding fit manner, so that the sliding rail can play a limiting role on the sliding block.

Preferably, a first through hole is formed in the position, corresponding to the driving motor, of the first fixing frame, and the diameter of the first through hole is smaller than that of the first shell and larger than that of the output end of the driving motor. And a first through hole is formed, so that the output end of the driving motor conveniently extends to correspond to the first rotating wheel, and the first belt is matched with the first through hole to rotate.

Preferably, a second through hole is formed between the first fixing frame and the corresponding first rotating wheel and the second rotating wheel. The second through Kong Fangbian is arranged, and the first rotating wheel is connected with the second rotating wheel, so that the first rotating wheel drives the second rotating wheel to rotate.

Preferably, the output end of the driving motor and the surface of the first rotating wheel are provided with first protruding blocks, one side, in contact with the output end of the driving motor and the first rotating wheel, of the first belt is provided with first grooves, and the first protruding blocks correspond to the first grooves. The first protruding block and the first groove are matched with each other to play a role in clamping the output end of the driving motor, the first rotating wheel and the first belt.

Preferably, the surfaces of the second rotating wheel and the fixed rotating wheel are provided with second protruding blocks, one side of the second belt, which is in contact with the second rotating wheel and the fixed rotating wheel, is provided with second grooves, and the second protruding blocks correspond to the second grooves. The second lug and the second groove are matched with each other to play a role in clamping the second rotating wheel and the fixed rotating wheel with the second belt.

Compared with the prior art, the utility model has the following advantages:

according to the dynamic high-precision quantitative adsorption device, the adsorption flow is calculated according to the pressure value by adopting a dynamic control adsorption mode, so that the injection pump is precisely controlled, the piston of the injection pump is quickly moved to the position where the flow is required by adsorption, and the adsorption requirement is met, and meanwhile, the dynamic high-precision quantitative adsorption device has the characteristics of high speed, high precision and the like.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a dynamic high-precision quantitative adsorption device;

FIG. 2 is a schematic structural view of a first fixing frame of a dynamic high-precision quantitative adsorbing device;

FIG. 3 is a schematic diagram showing the position structures of a first fixing frame and a first rotating wheel of a dynamic high-precision quantitative adsorbing device;

fig. 4 is a schematic structural view of a second fixing frame of the dynamic high-precision quantitative adsorption device.

In the figure: 1. a first fixing frame; 2. a driving motor; 3. a transmission mechanism; 4. a syringe pump; 5. a first electromagnetic valve; 6. a pressure sensor; 7. a dehydration tank; 8. an adsorption head; 9. a second electromagnetic valve; 10. a waste liquid pumping diaphragm pump; 11. a control device; 12. a first wheel; 13. a first belt; 14. a second wheel; 15. a fixed rotating wheel; 16. a second belt; 17. a slide block; 18. a piston; 19. a pump body; 20. a waste liquid barrel; 21. the second fixing frame; 22. a slide rail; 23. a first through hole; 24. a second through hole; 25. a first bump; 26. a first groove; 27. a second bump; 28. and a second groove.

Detailed Description

The technical scheme of the utility model is further specifically described below through specific embodiments and with reference to the accompanying drawings. It should be understood that the practice of the utility model is not limited to the following examples, but is intended to be within the scope of the utility model in any form and/or modification thereof.

In the present utility model, unless otherwise specified, all parts and percentages are by weight, and the equipment, materials, etc. used are commercially available or are conventional in the art. The methods in the following examples are conventional in the art unless otherwise specified. The components and devices in the following examples are, unless otherwise indicated, all those components and devices known to those skilled in the art, and their structures and principles are known to those skilled in the art from technical manuals or by routine experimentation.

In the following detailed description of embodiments of the utility model, reference is made to the accompanying drawings, in which, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. However, one or more embodiments may be practiced by one of ordinary skill in the art without these specific details.

According to the figure 1, a dynamic high-precision quantitative adsorption device comprises a first fixing frame 1, a driving motor 2, a transmission mechanism 3, an injection pump 4, a first electromagnetic valve 5, a pressure sensor 6, a dehydration tank 7, an adsorption head 8, a second electromagnetic valve 9, a waste liquid pumping diaphragm pump 10, a plurality of pipelines and a control device 11.

As shown in fig. 2, the injection pump 4 is fixed on one side of the first fixing frame 1, the driving motor 2 is fixed on one side of the first fixing frame 1, the transmission mechanism 3 is arranged at the output end of the driving motor 2, the transmission mechanism 3 is clamped and matched with the output end of the driving motor 2 in a rotating way, the transmission mechanism 3 is fixedly connected with the injection pump 4, the transmission mechanism 3 is fixedly connected with the first fixing frame 1, the driving motor 2, the injection pump 4 and the transmission mechanism 3 are combined and fixed, the driving motor 2, the injection pump 4 and the transmission mechanism 3 are matched with each other more easily, the driving motor 2 is arranged to provide power for the transmission of the transmission mechanism 3, and therefore the transmission mechanism 3 drives the injection pump 4 to work.

The transmission mechanism 3 comprises a first rotating wheel 12, a first belt 13, a second rotating wheel 14, a fixed rotating wheel 15, a second belt 16 and a sliding block 17, as shown in figure 3, one side of the first fixing frame 1, which is far away from the injection pump 4, is fixed with the first rotating wheel 12, the output end of the driving motor 2 is arranged on one side of the first fixing frame 1, which is far away from the injection pump 4, the output end of the driving motor 2 is connected with the first rotating wheel 12 through the first belt 13, a first through hole 23 is arranged at the position of the first fixing frame 1 corresponding to the driving motor 2, the diameter of the first through hole 23 is smaller than that of the first shell and larger than that of the driving motor 2, a first through hole 23 is arranged, the output end of the driving motor 2 is convenient to extend to correspond to the first rotating wheel 12, the driving motor 2 and the first rotating wheel 12 are both clamped and matched with the first belt 13 in a rotating way, a first bump 25 is arranged on the surface of the output end of the driving motor 2 and the first rotating wheel 12, a first groove 26 is arranged on one side of the first belt 13, which is contacted with the output end of the driving motor 2 and the first rotating wheel 12, a first lug 25 corresponds to the first groove 26, the first lug 25 and the first groove 26 are mutually matched to play a role of clamping the output end of the driving motor 2 and the first rotating wheel 12 with the first belt 13, so that the first belt 13 rotates in a matched manner, a second rotating wheel 14 is arranged on one side of the first fixing frame 1, which is far away from the first rotating wheel 12, the second rotating wheel 14 is fixedly connected with the first rotating wheel 12, a second through hole 24 is formed between the first fixing frame 1, which corresponds to the first rotating wheel 12, and the second rotating wheel 14, which is convenient for the first rotating wheel 12 to be connected with the second rotating wheel 14, so that the first rotating wheel 12 drives the second rotating wheel 14 to rotate, a fixed rotating wheel 15 is arranged on the same side of the second rotating wheel 14, the second rotating wheel 14 corresponds to the fixed rotating wheel 15, the second rotating wheel 14 is connected with the fixed rotating wheel 15 through a second belt 16, the second rotating wheel 14 and the fixed rotating wheel 15 are both in clamping connection and rotating fit with the second belt 16, a second protruding block 27 is arranged on the surfaces of the second rotating wheel 14 and the fixed rotating wheel 15, a second groove 28 is arranged on one side, which is in contact with the second rotating wheel 14 and the fixed rotating wheel 15, of the second belt 16, the second protruding block 27 corresponds to the second groove 28, the second protruding block 27 is arranged to be matched with the second groove 28 to play a role in clamping connection of the second rotating wheel 14 and the fixed rotating wheel 15 with the second belt 16, a sliding block 17 is arranged on one side of the second belt 13, one end of the sliding block 17 is fixedly connected with the second belt 16, the other end of the sliding block 17 is fixedly connected with the injection pump 4, the first rotating wheel 12, the first belt 13, the second rotating wheel 14, the fixed rotating wheel 15 and the second belt 16 are mutually matched, the sliding block 17 can move along with the second belt 16 by utilizing power provided by the driving motor 2, a sliding rail 22 is fixed on one side, which is adjacent to the sliding rail 22, which is arranged on the sliding rail 22, and the sliding rail 22 is clamped and slidingly matched with the sliding block 17, so that the sliding rail 22 plays a limiting role on the sliding block 17.

The syringe pump 4 includes piston 18 and pump body 19, piston 18 one end and slider 17 fixed connection, piston 18 other end and pump body 19 movable fit, pump body 19 one side and first mount 1 fixed connection, set up piston 18 and slider 17 fixed connection, when slider 17 moves along with second belt 16, slider 17 drives piston 18 and removes in pump body 19, thereby make syringe pump 4 work, first mount 1 one side is fixed with first solenoid valve 5 and pressure sensor 6, first solenoid valve 5 and pressure sensor 6 pass through the pipeline intercommunication, set up the fluid direction in the controllable device 11 of first solenoid valve, set up pressure sensor 6 and can detect device internal pressure, pump body 19 and first solenoid valve 5 pass through the pipeline intercommunication, pressure sensor 6 is linked together through the pipeline and dewatering tank 7, as shown in fig. 4, dewatering tank 7 one side is fixed with second mount 21, dewatering tank 7 top is provided with adsorption head 8, adsorption head 8 and dewatering tank 7 can dismantle fixed connection, set up second mount 21 and make the combination with adsorption head 8 and fix, make the operator more convenient in the operation, dewatering tank 7 is linked together through the pipeline and second solenoid valve 9 through the pipeline, second solenoid valve 9 and the fluid-pumping device 10 are carried out to the waste liquid, the diaphragm pump 10 is carried out to the waste liquid through the membrane pump 10, the fluid pumping device is linked together with waste liquid 20 is carried out to the membrane pump 10 through the pipeline, the waste liquid is linked together to the membrane pump 10 is carried out to the waste liquid.

The control device 11 is electrically connected with the driving motor 2, the first electromagnetic valve 5 and the pressure sensor 6, the control device 11 comprises a calculation module and a storage module, and the calculation module and the storage module are arranged to be electrically connected with the driving motor 2, the first electromagnetic valve 5 and the pressure sensor 6, so that the pressure value of the pressure sensor 6 before the movement of the injection pump 4 and the pressure value of the pressure sensor 6 after the movement of the injection pump 4 are stored and recorded, and the adsorption flow is calculated according to the pressure values; the principle of calculation of the adsorption flow rate is that, according to the ideal gas state equation pv=nrt, p1i=p0×v0 is calculated according to the formula (v0+vi-V1), when Pi > p1i, i.e. adsorption is completed, the syringe pump 4 is stopped, the first electromagnetic valve 5 is switched to release the redundant negative pressure, wherein V0: the initial volume of the adsorption liquid in the dehydration tank 7; p0: an initial air pressure value in the dehydration tank 7; v1: a target volume of the desired adsorption fluid; t: recording the detected time difference twice; pi: after the injection pump 4 moves, the air pressure value in the dehydration tank 7 is detected for the ith time; vi: after the injection pump 4 moves, the volume value of the adsorption liquid in the dehydration tank 7 is detected for the ith time; p1i: after the syringe pump 4 is moved, the ith detection reaches the air pressure threshold of the target volume.

In particular, if an operator wants to operate the device to perform cell preparation, the slide glass is fixed on the second fixing frame 21 by using a plurality of parts of the hose connecting device, at this time, the slide glass corresponds to the top of the adsorption head 8, the first electromagnetic valve 5 is opened, the injection pump 4 is driven to generate negative pressure during adsorption, the control device 11 controls the injection pump 4 to move to a designated position according to the pressure signal of the pressure sensor 6 to reach the required adsorption amount, then the control device 11 controls the first electromagnetic valve 5 to be closed, the second electromagnetic valve 9 is opened, and at this time, the waste liquid in the dehydration tank 7 is pumped into the waste liquid barrel 20 by the waste liquid pumping diaphragm pump 10.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. A dynamic high-precision quantitative adsorption device is characterized in that: the dynamic high-precision quantitative adsorption device comprises a first fixing frame (1), a driving motor (2), a transmission mechanism (3), a syringe pump (4), a first electromagnetic valve (5), a pressure sensor (6), a dehydration tank (7), an adsorption head (8), a second electromagnetic valve (9), a waste liquid pumping diaphragm pump (10), a plurality of pipelines and a control device (11), wherein the syringe pump (4) is arranged on one side of the first fixing frame (1), the syringe pump (4) is fixedly connected with the first fixing frame (1), the driving motor (2) is arranged on one side of the first fixing frame (1), the driving motor (2) is fixedly connected with the first fixing frame (1), the output end of the driving motor (2) is provided with the transmission mechanism (3), the transmission mechanism (3) is fixedly connected with the first fixing frame (1), the transmission mechanism (3) is fixedly connected with the syringe pump (4), the first electromagnetic valve (5) and the pressure sensor (6) are fixedly connected with the first electromagnetic valve (4) through the first electromagnetic valve (5) and the first electromagnetic valve (4), the first electromagnetic valve (5) is communicated with the pressure sensor (6) through a pipeline, the control device (11) is electrically connected with the driving motor (2), the first electromagnetic valve (5) and the pressure sensor (6), and the control device (11) comprises a calculation module and a storage module.

2. The dynamic high-precision quantitative adsorption device according to claim 1, wherein: the transmission mechanism (3) comprises a first rotating wheel (12), a first belt (13), a second rotating wheel (14), a fixed rotating wheel (15), a second belt (16) and a sliding block (17), wherein one side of the first fixed frame (1) deviating from the injection pump (4) is provided with the first rotating wheel (12), the first rotating wheel (12) is fixedly connected with the first fixed frame (1), the output end of the driving motor (2) is placed at one side of the first fixed frame (1) far away from the injection pump (4), the output end of the driving motor (2) is connected with the first rotating wheel (12) through the first belt (13), the driving motor (2) and the first rotating wheel (12) are both connected with the first belt (13) in a clamping and rotating manner, one side of the first fixed frame (1) deviating from the first rotating wheel (12) is provided with a second rotating wheel (14), the second rotating wheel (14) is fixedly connected with the first rotating wheel (12), the same side of the second rotating wheel (14) is provided with the fixed rotating wheel (15), the second rotating wheel (14) is correspondingly connected with the first rotating wheel (16) in a clamping manner with the second rotating wheel (15) in a rotating manner, one side of the second belt (16) is provided with a sliding block (17), the sliding block (17) is fixedly connected with the second belt (16), and the sliding block (17) is fixedly connected with the injection pump (4).

3. The dynamic high-precision quantitative adsorption device according to claim 1, wherein: the injection pump (4) comprises a piston (18) and a pump body (19), one end of the piston (18) is fixedly connected with the sliding block (17), the other end of the piston (18) is movably matched with the pump body (19), and one side of the pump body (19) is fixedly connected with the first fixing frame (1).

4. The dynamic high-precision quantitative adsorption device according to claim 1, wherein: the pressure sensor (6) is communicated with the dehydration tank (7) through a pipeline, the dehydration tank (7) is communicated with the second electromagnetic valve (9) through a pipeline, the second electromagnetic valve (9) is communicated with the waste liquid pumping diaphragm pump (10) through a pipeline, and the waste liquid pumping diaphragm pump (10) is communicated with the waste liquid barrel (20) through a pipeline.

5. The dynamic high-precision quantitative adsorption device according to claim 1, wherein: the novel water removing device is characterized in that a second fixing frame (21) is arranged on one side of the water removing tank (7), the water removing tank (7) is detachably and fixedly connected with the second fixing frame (21), an adsorption head (8) is arranged at the top of the water removing tank (7), and the adsorption head (8) is detachably and fixedly connected with the water removing tank (7).

6. A dynamic high-precision quantitative adsorption device according to claim 3, wherein: the sliding rail (22) is arranged on one side, adjacent to the sliding block (17), of the first fixing frame (1), the sliding rail (22) is fixedly connected with the first fixing frame (1), and the sliding rail (22) is clamped with the sliding block (17) in a sliding fit mode.

7. The dynamic high-precision quantitative adsorption device according to claim 6, wherein: a first through hole (23) is formed in the position of the first fixing frame (1) corresponding to the driving motor (2), and the diameter of the first through hole (23) is smaller than that of the first shell and larger than that of the output end of the driving motor (2).

8. The dynamic high-precision quantitative adsorption device according to claim 7, wherein: a second through hole (24) is formed between the first fixing frame (1) and the second rotating wheel (14) corresponding to the first rotating wheel (12).

9. The dynamic high-precision quantitative adsorption device according to claim 2, wherein: the driving motor (2) output and the first rotating wheel (12) surface all are provided with first lug (25), first belt (13) are provided with first recess (26) with driving motor (2) output and first rotating wheel (12) contact one side, first lug (25) are corresponding with first recess (26).

10. The dynamic high-precision quantitative adsorption device according to claim 9, wherein: the surface of the second rotating wheel (14) and the surface of the fixed rotating wheel (15) are respectively provided with a second convex block (27), one side of the second belt (16) contacted with the second rotating wheel (14) and the fixed rotating wheel (15) is provided with a second groove (28), and the second convex blocks (27) correspond to the second grooves (28).