CN218444342U

CN218444342U - Micro-fluidic chip gas tightness check out test set with locking mechanical system

Info

Publication number: CN218444342U
Application number: CN202221894699.7U
Authority: CN
Inventors: 刘超会; 刘延岩; 吴文; 徐超凡; 张英伟; 李晓明
Original assignee: Mengyi Artificial Intelligence Co ltd
Current assignee: Mengyi Artificial Intelligence Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2023-02-03
Anticipated expiration: 2032-07-21

Abstract

The utility model relates to an air tightness check out test set field, in particular to micro-fluidic chip air tightness check out test set with locking mechanical system. Comprises a detection device body; a detection chamber is arranged in the detection equipment body; two groups of slide ways are symmetrically arranged on the inner walls of two opposite sides of the detection chamber; two groups of sliding rods are arranged between the two groups of sliding ways; two ends of the two groups of sliding rods are respectively connected in the two groups of sliding ways in a sliding manner; each group of sliding rods is connected with two groups of fixed blocks in a sliding manner; each group of fixed blocks is provided with a group of fixed grooves; and one side of each group of the fixing grooves, which is opposite to the two adjacent groups of the fixing grooves, is of an open structure. The utility model discloses a slide bar and fixed block adjust the length and the width of the cube structure that four fixed slot combinations of group constitute to this deals with not unidimensional micro-fluidic chip, has improved detection device's compatibility.

Description

Micro-fluidic chip gas tightness check out test set with locking mechanical system

Technical Field

The utility model belongs to gas tightness check out test set field, in particular to micro-fluidic chip gas tightness check out test set with locking mechanical system.

Background

Microfluidics refers to the science and technology involved in systems that process or manipulate tiny fluids using microchannels. After the microfluidic chip is manufactured, it is usually required to perform air tightness detection on the microfluidic chip so as to avoid raw material leakage in use.

When the existing air tightness detection equipment detects the air tightness of a microfluidic chip, the microfluidic chip cannot be fixed in the detection process due to different sizes of the microfluidic chip, and the existing air tightness detection equipment is lack of compatibility.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a micro-fluidic chip air tightness detection device with a locking mechanism, which comprises a detection device body; a detection chamber is arranged in the detection equipment body; an air inlet is formed in one side wall of the detection equipment body; an air outlet is formed in one side wall of the detection equipment body; a group of gas flow sensors are arranged on the outer walls of the gas inlet and the gas outlet; one end of each of the air inlet and the air outlet extends to the detection chamber and is communicated with a group of air pipes; the other end of each air pipe is communicated with a group of air supply plugs; each group of the air supply plugs is provided with a group of electromagnetic air valves; two groups of slide ways are symmetrically arranged on the inner walls of two opposite sides of the detection chamber; two groups of sliding rods are arranged between the two groups of sliding ways; two ends of the two groups of sliding rods are respectively connected in the two groups of sliding ways in a sliding manner; each group of sliding rods is provided with a group of sliding grooves; two groups of fixed blocks are connected in each group of sliding grooves in a sliding manner; each group of fixed blocks is provided with a group of fixed grooves; and one side of each group of the fixing grooves, which is opposite to the two adjacent groups of the fixing grooves, is of an open structure.

Furthermore, a sealing cover is arranged at the top of the detection chamber.

Furthermore, a constant temperature device is arranged on the inner wall of one side of the detection chamber; and a thermometer is arranged on the inner wall of one side of the detection chamber.

Furthermore, an air pressure sensor is arranged on the inner wall of one side of the detection chamber.

Furthermore, an exhaust port is formed in one side wall of the bottom of the detection equipment body.

Furthermore, one end of the exhaust port extends into the detection chamber and is communicated with a vacuum pump.

The utility model has the advantages that:

1. through two groups of slide ways symmetrically arranged on the inner walls of two sides of the detection chamber, two groups of slide rods in sliding connection with the two groups of slide ways and four groups of fixed blocks in sliding connection with the two groups of slide rods, the length and the width of a cubic structure formed by combining the four groups of fixed grooves can be randomly adjusted by sliding the two groups of slide rods and the four groups of fixed blocks, the fixing operation can be completed no matter the size of the microfluidic chip, and the compatibility of the detection device is improved.

2. The gas tightness detection device has the advantages that the gas is conveyed to the micro-fluidic chip, the gas flow of the input end and the gas flow of the output end are monitored simultaneously, the primary gas tightness detection work is completed, the gas pressure of the detection chamber is reduced, the gas pressure in the micro-fluidic chip is improved, the gas pressure in the detection chamber is monitored in real time through the gas pressure sensor, the secondary gas tightness detection work is completed, meanwhile, the temperature in the detection chamber is constant through the constant temperature device, and therefore the accuracy of a gas tightness detection result is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;

fig. 2 shows a schematic cross-sectional view of a detection apparatus according to an embodiment of the present invention;

fig. 3 shows a schematic top cross-sectional view of a detection apparatus according to an embodiment of the present invention;

in the figure: 1. detecting an equipment body; 2. a sealing cover; 3. an air inlet; 4. an air outlet; 5. an exhaust port; 6. a gas flow sensor; 7. a vacuum pump; 8. an air pipe; 9. an air supply plug; 10. an electromagnetic gas valve; 11. a thermostatic device; 12. a thermometer; 13. an air pressure sensor; 14. a slideway; 15. a slide bar; 16. a chute; 17. a fixed block; 18. fixing grooves; 19. a detection chamber.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model provides a micro-fluidic chip gas tightness check out test set with locking mechanical system, including check out test set body 1. Illustratively, as shown in fig. 1, 2 and 3, a detection chamber 19 is arranged in the detection device body 1; the top of the detection chamber 19 is provided with a sealing cover 2. An air inlet 3 is formed in one side wall of the detection equipment body 1; an air outlet 4 is formed in one side wall of the detection equipment body 1; the outer walls of the air inlet 3 and the air outlet 4 are respectively provided with a group of gas flow sensors 6; one end of each of the air inlet 3 and the air outlet 4 extends to the detection chamber 19 and is communicated with a group of air pipes 8; the other end of each group of air pipes 8 is communicated with a group of air supply plugs 9; each set of the air supply plug 9 is provided with a set of electromagnetic air valves 10. A constant temperature device 11 is arranged on the inner wall of one side of the detection chamber 19; a thermometer 12 is arranged on the inner wall of one side of the detection chamber 19; and an air pressure sensor 13 is arranged on the inner wall of one side of the detection chamber 19. An exhaust port 5 is formed in one side wall of the bottom of the detection equipment body 1; one end of the exhaust port 5 extends into the detection chamber 19 and is communicated with a vacuum pump 7. Two groups of slide ways 14 are symmetrically arranged on the inner walls of two opposite sides of the detection chamber 19; two groups of sliding rods 15 are arranged between the two groups of sliding ways 14; two ends of the two groups of sliding rods 15 are respectively connected in the two groups of slideways 14 in a sliding manner. Each group of sliding rods 15 is provided with a group of sliding grooves 16; two groups of fixing blocks 17 are connected in each group of sliding grooves 16 in a sliding manner; each group of fixed blocks 17 is provided with a group of fixed grooves 18; and one side of each group of the fixing grooves 18 opposite to the two adjacent groups of the fixing grooves 18 is of an open structure.

Utilize the utility model provides a micro-fluidic chip gas tightness check out test set with locking mechanical system, its theory of operation application method as follows: and opening the sealing cover 2, sliding the sliding rod 15 and the fixed block 17 according to the size of the microfluidic chip, adjusting the length and the width of the cubic structure formed by combining the four groups of fixed grooves 18, and putting the microfluidic chip into the cubic structure to finish the fixing work. Two groups of air supply plugs 9 are respectively communicated with the input end and the output end of the micro-fluidic chip, then the sealing cover 2 is covered, air is supplied through the air inlet 3, the air inlet 3 and the air outlet 4 are respectively provided with the air flow sensor 6, the air inlet flow and the air outlet flow are monitored in an actual measurement mode, and the first air tightness detection work is completed by comparing the data of the air inlet flow and the air outlet flow. And starting a vacuum pump 7 to discharge air in the detection chamber 19 through an exhaust port 5, closing an electromagnetic air valve 10 communicated with an air outlet 4, locking an output end of the microfluidic chip, conveying the air into the microfluidic chip through an air inlet 3 to improve the air pressure in the microfluidic chip, closing the electromagnetic air valve 10 communicated with the air inlet 3, and locking an input end of the microfluidic chip to ensure that the air pressure in the microfluidic chip is constant. The air pressure of the closed space in the micro-fluidic chip is positive pressure, the air pressure of the closed space in the detection chamber 19 is negative pressure, if the air tightness of the micro-fluidic chip is insufficient, the air in the micro-fluidic chip is discharged into the detection chamber 19, the air pressure in the detection chamber 19 is improved, the air pressure in the detection chamber 19 can be monitored in real time through the air pressure sensor 13, and the second air tightness detection work is completed. The thermometer 12 monitors the temperature in the detection chamber 19 in real time, and when the temperature rises or falls, it sends a signal to the thermostat 11 to adjust the temperature in the detection chamber 19 to be constant, thereby preventing the temperature from affecting the detection of the air pressure.

The gas tightness detection is completed once by conveying gas to the micro-fluidic chip and monitoring the gas flow of the input end and the output end at the same time, the gas pressure in the detection chamber 19 is reduced, the gas pressure in the micro-fluidic chip is improved, the gas pressure in the detection chamber 19 is monitored in real time through the gas pressure sensor 13, the secondary gas tightness detection is completed, and meanwhile, the temperature in the detection chamber 19 is constant through the constant temperature device 11, so that the accuracy of the gas tightness detection result is improved.

Through two groups of slide ways 14 symmetrically arranged on the inner walls of two sides of the detection chamber 19, two groups of slide bars 15 in sliding connection with the two groups of slide ways 14 and four groups of fixed blocks 17 in sliding connection with the two groups of slide bars 15, the length and the width of a cubic structure formed by combining four groups of fixed grooves 18 can be adjusted at will by sliding the two groups of slide bars 15 and the four groups of fixed blocks 17, the fixing work can be finished no matter the size of the microfluidic chip, and the compatibility of the detection device is improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a micro-fluidic chip gas tightness check out test set with locking mechanical system which characterized in that: comprises a detection device body (1); a detection chamber (19) is arranged in the detection equipment body (1); an air inlet (3) is formed in one side wall of the detection equipment body (1); an air outlet (4) is formed in one side wall of the detection equipment body (1); the outer walls of the air inlet (3) and the air outlet (4) are respectively provided with a group of gas flow sensors (6); one end of each of the air inlet (3) and the air outlet (4) extends to the detection chamber (19) and is communicated with a group of air pipes (8); the other end of each group of air pipes (8) is communicated with a group of air supply plugs (9); each group of air supply plugs (9) is provided with a group of electromagnetic air valves (10); two groups of slide ways (14) are symmetrically arranged on the inner walls of two opposite sides of the detection chamber (19); two groups of sliding rods (15) are arranged between the two groups of sliding ways (14); two ends of the two groups of sliding rods (15) are respectively connected in the two groups of slideways (14) in a sliding manner; each group of sliding rods (15) is provided with a group of sliding grooves (16); two groups of fixed blocks (17) are connected in each group of sliding grooves (16) in a sliding manner; each group of fixed blocks (17) is provided with a group of fixed grooves (18); one side of each group of fixing grooves (18) opposite to the two adjacent groups of fixing grooves (18) is of an open structure.

2. The microfluidic chip airtightness detection apparatus with the locking mechanism according to claim 1, wherein: and a sealing cover (2) is arranged at the top of the detection chamber (19).

3. The microfluidic chip airtightness detection apparatus with the locking mechanism according to claim 2, wherein: a constant temperature device (11) is arranged on the inner wall of one side of the detection chamber (19); a thermometer (12) is arranged on the inner wall of one side of the detection chamber (19).

4. The microfluidic chip airtightness detection apparatus with the locking mechanism according to claim 2, wherein: and an air pressure sensor (13) is arranged on the inner wall of one side of the detection chamber (19).

5. The microfluidic chip airtightness detection apparatus with the locking mechanism according to claim 2, wherein: and an exhaust port (5) is formed in one side wall of the bottom of the detection equipment body (1).

6. The microfluidic chip airtightness detection apparatus with the locking mechanism according to claim 5, wherein: one end of the exhaust port (5) extends into the detection chamber (19) and is communicated with a vacuum pump (7).