Multi-channel powdery sample quality detection device based on micro-fluidic chip

Abstract

The utility model relates to the technical field of powdery sample quality detection devices, and discloses a multichannel powdery sample quality detection device based on a micro-fluidic chip, which comprises a main body assembly, a shell, a stirring barrel and a water injection pipe, the stirring barrel is arranged in the shell, and the water injection pipe is arranged on the stirring barrel; the feeding assembly is arranged in the shell and comprises a supporting disc, a feeding hopper, a sealing cover, a feeding roller, a top sealing plate and a bottom sealing plate, the supporting disc is fixed in the shell, the feeding hopper is fixed in the supporting disc, the sealing cover is arranged at the top of the feeding hopper, the feeding roller is rotationally connected into the feeding hopper, and the top sealing plate is arranged at the top of the feeding roller. According to the utility model, powder detection samples can be quantitatively added into the stirring barrel by arranging the feeding assembly, and water in the stirring barrel can be prevented from splashing into the feeding hopper.

Description

Technical Field

[0001] The utility model relates to the technical field of powder sample quality detection devices, in particular to a multi-channel powder sample quality detection device based on a microfluidic chip. Background Art

[0002] As an emerging technology, microfluidic technology is considered to have great development potential and broad application prospects in biomedical research. This technology precisely manipulates fluids at the microscale, integrates complex biochemical reaction processes onto a microfluidic chip, and makes detection convenient and fast. Currently, there are a wide variety of powder products on the market. To prevent the recurrence of incidents such as the Sanlu milk powder incident, a device based on a microfluidic chip that can simultaneously detect the contents of vitamins A, C, E, D, protein, and fat in samples through multiple channels has been designed.

[0003] However, when adding powder samples to the existing multi-channel powder sample quality detection devices, it is not convenient to control the amount of added samples, resulting in an inability to guarantee the detection concentration and thus affecting the detection results. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above and / or problems existing in the existing multi-channel powder sample quality detection devices based on microfluidic chips, the present utility model is proposed.

[0006] Therefore, the problem to be solved by the present utility model is that it is not convenient to control the amount of added samples in the existing multi-channel powder sample quality detection devices.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: A multi-channel powder sample quality detection device based on a microfluidic chip, which includes a main body assembly, including a housing, a stirring barrel, and a water injection pipe. The stirring barrel is arranged inside the housing, and the water injection pipe is arranged on the stirring barrel.

[0008] A feeding assembly is arranged inside the housing, including a support plate, a feeding funnel, a sealing cover, a feeding roller, a top sealing plate, and a bottom sealing plate. The support plate is fixed inside the housing, the feeding funnel is fixed inside the support plate, the sealing cover is arranged on the top of the feeding funnel, the feeding roller is rotatably connected inside the feeding funnel, the top sealing plate is arranged on the top of the feeding roller, and the bottom sealing plate is located at the bottom of the feeding roller.

[0009] As a preferred embodiment of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present invention, wherein: the feeding assembly further includes a driving member disposed within the support disk, including a driving rod slidable within the feeding roller, and a rotating rod fixedly connected to an end of the driving rod.

[0010] As a preferred embodiment of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present invention, wherein: a driving disk is fixedly connected to a surface of the rotating rod, a limiting strip is fixedly connected within the support disk, a card slot is formed on a surface of the driving disk, and the card slot slides on a surface of the limiting strip.

[0011] As a preferred embodiment of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present invention, wherein: the feeding assembly further includes a reset member disposed on the driving member, including a reset spring sleeved on a surface of the driving rod, and a reset ring fixedly connected to a surface of the rotating rod.

[0012] As a preferred embodiment of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present invention, wherein: an adjusting disk is fixedly connected to a surface of the driving rod, and the adjusting disk is located between the top sealing plate and the bottom sealing plate.

[0013] As a preferred embodiment of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present invention, wherein: a positioning strip is fixedly connected within the top sealing plate, and a shielding plate is fixedly connected to a surface of the support disk.

[0014] As a preferred embodiment of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present invention, wherein: the feeding assembly further includes a limiting member disposed on a surface of the rotating rod, including a positioning ring fixed to the surface of the rotating rod, and a support shell rotatably connected to the surface of the rotating rod.

[0015] As a preferred embodiment of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present invention, wherein: a lifting frame is slidably connected within the support shell, and a compression spring is fixedly connected to a top of the lifting frame.

[0016] As a preferred embodiment of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present invention, wherein: a pull rod is fixedly connected to a top of the lifting frame, and a plug rod is fixedly connected to a bottom of the lifting frame.

[0017] As a preferred solution of the multi-channel powder sample quality detection device based on a microfluidic chip according to the present utility model, wherein: a limiting groove is formed in the support plate, and a positioning groove is formed on one side of the limiting groove.

[0018] The beneficial effect of the present utility model is that the feeding assembly can quantitatively add powder detection samples into the stirring barrel and prevent the water in the stirring barrel from splashing into the feeding funnel. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0020] Figure 1 It is a structural diagram of a multi-channel powder sample quality detection device based on a microfluidic chip.

[0021] Figure 2 It is a cross-sectional structural diagram of a multi-channel powder sample quality detection device based on a microfluidic chip.

[0022] Figure 3 It is a cross-sectional structural diagram of the stirring barrel of a multi-channel powder sample quality detection device based on a microfluidic chip.

[0023] Figure 4 It is a cross-sectional structural diagram of the support plate of a multi-channel powder sample quality detection device based on a microfluidic chip.

[0024] Figure 5 It is a cross-sectional structural diagram of the adjustment plate of a multi-channel powder sample quality detection device based on a microfluidic chip.

[0025] Figure 6 It is a cross-sectional structural diagram of the support shell of a multi-channel powder sample quality detection device based on a microfluidic chip.

[0026] Figure 7 It is a connection structural diagram of the lifting frame and the compression spring of a multi-channel powder sample quality detection device based on a microfluidic chip.

[0027] In the figure: main body component, 100; housing, 101; stirring barrel, 102; water injection pipe, 103; feeding component, 200; support plate, 201a; feeding funnel, 201b; sealing cover, 201c; feeding roller, 201d; top sealing plate, 201e; bottom sealing plate, 201f; driving member, 202; driving rod, 202a; rotating rod, 202b; driving disc, 202c; reset member, 203; reset spring, 203a; reset ring, 203b; adjusting disc, 203c; positioning strip, 203d; baffle plate, 203e; limiting member, 204; positioning ring, 204a; support shell, 204b; lifting frame, 204c; compression spring, 204d; pull rod, 204e; inserting rod, 204f; card slot, U; limiting slot, V; positioning slot, W. Detailed implementation manners

[0028] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0029] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0030] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0031] Embodiment 1

[0032] Referring to Figures 1 to 7 , this is the first embodiment of the present utility model. This embodiment provides a multi-channel powder sample quality detection device based on a microfluidic chip. The multi-channel powder sample quality detection device based on a microfluidic chip includes a main body component 100, which includes a housing 101, a stirring barrel 102 and a water injection pipe 103. The stirring barrel 102 is arranged inside the housing 101, and the water injection pipe 103 is arranged on the stirring barrel 102.

[0033] The housing 101 is the outer shell of a multi-channel powder sample quality detection device based on a microfluidic chip. A rotor is arranged inside the stirring barrel 102, and a rotatable magnet is arranged at the bottom of the stirring barrel 102. The rotation of the magnet can drive the rotor to rotate, so that the rotor stirs the liquid in the stirring barrel 102. The water injection pipe 103 is used to add a certain amount of clean water into the stirring barrel 102.

[0034] The feeding assembly 200 is arranged inside the housing 101 and includes a support disk 201a, a feeding funnel 201b, a sealing cover 201c, a feeding roller 201d, a top sealing plate 201e and a bottom sealing plate 201f. The support disk 201a is fixed inside the housing 101, the feeding funnel 201b is fixed inside the support disk 201a, the sealing cover 201c is arranged on the top of the feeding funnel 201b, the feeding roller 201d is rotatably connected inside the feeding funnel 201b, the top sealing plate 201e is arranged on the top of the feeding roller 201d, and the bottom sealing plate 201f is located at the bottom of the feeding roller 201d.

[0035] The support disk 201a is used to support the feeding funnel 201b. The feeding funnel 201b is used to hold the powder sample. The sealing cover 201c is used to seal the feeding funnel 201b. Four feeding grooves are arranged on the surface of the feeding roller 201d. Every time it rotates 90 degrees, one feeding groove can face the stirring barrel 102, so that the powder sample in the feeding groove is added into the stirring barrel 102. The top sealing plate 201e and the bottom sealing plate 201f are used to seal the top and bottom of the feeding roller 201d, so that the powder sample in the feeding funnel 201b cannot enter the feeding groove, and the splashing liquid in the stirring barrel 102 cannot contact the feeding roller 201d either.

[0036] Specifically, the feeding assembly 200 further includes a driving member 202 arranged inside the support disk 201a, which includes a driving rod 202a sliding inside the feeding roller 201d, and a rotating rod 202b fixedly connected to the end of the driving rod 202a.

[0037] The driving rod 202a is a rhombic prism. By rotating the driving rod 202a, the feeding roller 201d can be driven to rotate. The rotating rod 202b is a circular column and is used to drive the driving rod 202a to rotate.

[0038] Specifically, a driving disk 202c is fixedly connected to the surface of the rotating rod 202b, a limiting strip 202d is fixedly connected inside the support disk 201a, and a clamping groove U is formed on the surface of the driving disk 202c. The clamping groove U slides on the surface of the limiting strip 202d.

[0039] By rotating the driving disk 202c, the rotating rod 202b can be driven to rotate. There are four card slots U formed on the surface of the driving disk 202c, and there are two limiting strips 202d. The limiting strips 202d are used to limit the driving disk 202c to prevent the driving disk 202c from rotating at this time.

[0040] Embodiment 2

[0041] Refer to Figures 1 to 7 , which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment.

[0042] Specifically, the feeding assembly 200 further includes a reset member 203, which is arranged on the driving member 202 and includes a reset spring 203a sleeved on the surface of the driving rod 202a. A reset ring 203b is fixedly connected to the surface of the rotating rod 202b.

[0043] The reset spring 203a is in a compressed state and is used to push the reset ring 203b, so that the reset ring 203b drives the rotating rod 202b to move.

[0044] Specifically, an adjusting disk 203c is fixedly connected to the surface of the driving rod 202a, and the adjusting disk 203c is located between the top sealing plate 201e and the bottom sealing plate 201f.

[0045] The adjusting disk 203c is used to drive the top sealing plate 201e and the bottom sealing plate 201f to move, so that the top sealing plate 201e and the bottom sealing plate 201f move away from the feeding roller 201d, so that the feeding roller 201d can discharge materials smoothly.

[0046] Specifically, a positioning strip 203d is fixedly connected inside the top sealing plate 201e, and a shielding plate 203e is fixedly connected to the surface of the support disk 201a.

[0047] There are two positioning strips 203d inside the top sealing plate 201e. The adjusting disk 203c is located between the two positioning strips 203d, so that the adjusting disk 203c can drive the top sealing plate 201e to move. Similarly, there are two positioning strips 203d inside the bottom sealing plate 201f, so that the adjusting disk 203c can drive the bottom sealing plate 201f to move. The shielding plate 203e is used to shield the top sealing plate 201e.

[0048] Specifically, the feeding assembly 200 further includes a limiting member 204, which is arranged on the surface of the rotating rod 202b and includes a positioning ring 204a fixed to the surface of the rotating rod 202b. A support shell 204b is rotatably connected to the surface of the rotating rod 202b.

[0049] The positioning ring 204a is used in cooperation with the reset ring 203b to limit the support shell 204b, so that the support shell 204b can move along with the rotating rod 202b.

[0050] Specifically, a lifting frame 204c is slidably connected inside the support shell 204b, and a compression spring 204d is fixedly connected to the top of the lifting frame 204c.

[0051] The lifting frame 204c can move up and down inside the support shell 204b, and the compression spring 204d is in a compressed state and is used to push the lifting frame 204c.

[0052] Specifically, a pull rod 204e is fixedly connected to the top of the lifting frame 204c, and a plug rod 204f is fixedly connected to the bottom of the lifting frame 204c.

[0053] The pull rod 204e is used to pull the lifting frame 204c, and the plug rod 204f is used to position the lifting frame 204c.

[0054] Specifically, a limiting groove V is formed in the support disk 201a, and a positioning groove W is formed on one side of the limiting groove V.

[0055] The end of the plug rod 204f slides in the limiting groove V to limit the support shell 204b, so that the support shell 204b does not rotate along with the rotating rod 202b. When the driving disk 202c is moved so that the driving disk 202c is separated from the limiting strip 202d, at this time, under the reset elastic force of the compression spring 204d, the plug rod 204f can be inserted into the positioning groove W to position the support shell 204b, so that the driving disk 202c does not move back under the reset elastic force of the reset spring 203a.

[0056] During use, when it is necessary to quantitatively add a powdery sample into the mixing barrel 102, first push the driving disk 202c to separate the driving disk 202c from the limiting strip 202d. During this process, under the reset elastic force of the compression spring 204d, the plug rod 204f can be inserted into the positioning groove W to position the support shell 204b, so that the driving disk 202c does not move back under the reset elastic force of the reset spring 203a. At the same time, the rotating rod 202b drives the top sealing plate 201e and the bottom sealing plate 201f to move through the driving rod 202a, so as to release the sealing of the feeding roller 201d, so that the powdery sample on the feeding roller 201d can be added into the mixing barrel 102. At this time, by rotating the driving disk 202c multiple times, the amount of the added powdery sample is adjusted.

[0057] After adding the powdered sample, the lever 204e can be pulled to move the end of the insertion rod 204f away from the positioning groove W. At this time, under the restoring elastic force of the restoring spring 203a, the driving disk 202c can be restored and moved. At this time, the driving disk 202c is limited by the limiting strip 202d and will not rotate. During the restoring movement of the driving disk 202c, the adjusting disk 203c can drive the top sealing plate 201e and the bottom sealing plate 201f to move synchronously, so that the top sealing plate 201e and the bottom sealing plate 201f seal the feeding roller 201d.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the technical solutions of the present invention.

Claims

1. A multi-channel powder sample quality detection device based on a microfluidic chip, characterized in that: Including, A main body component (100), including a housing (101), a stirring barrel (102), and a water injection pipe (103). The stirring barrel (102) is arranged inside the housing (101), and the water injection pipe (103) is arranged on the stirring barrel (102). A feeding component (200), arranged inside the housing (101), including a support plate (201a), a feeding funnel (201b), a sealing cover (201c), a feeding roller (201d), a top sealing plate (201e), and a bottom sealing plate (201f). The support plate (201a) is fixed inside the housing (101), the feeding funnel (201b) is fixed inside the support plate (201a), the sealing cover (201c) is arranged on the top of the feeding funnel (201b), the feeding roller (201d) is rotatably connected inside the feeding funnel (201b), the top sealing plate (201e) is arranged on the top of the feeding roller (201d), and the bottom sealing plate (201f) is located at the bottom of the feeding roller (201d).

2. The multi-channel powder sample quality detection device based on a microfluidic chip according to claim 1, wherein: The feeding component (200) further includes a driving member (202), arranged inside the support plate (201a), including a driving rod (202a) sliding inside the feeding roller (201d), and a rotating rod (202b) is fixedly connected to the end of the driving rod (202a).

3. The multi-channel powder sample quality detection device based on a microfluidic chip according to claim 2, characterized in that: A driving disc (202c) is fixedly connected to the surface of the rotating rod (202b), a limiting strip (202d) is fixedly connected inside the support plate (201a), and a clamping groove (U) is formed on the surface of the driving disc (202c), and the clamping groove (U) slides on the surface of the limiting strip (202d).

4. The multi-channel powdered sample quality detection device based on a microfluidic chip according to claim 3, characterized in that: The feeding component (200) further includes a reset member (203), arranged on the driving member (202), including a reset spring (203a) sleeved on the surface of the driving rod (202a), and a reset ring (203b) is fixedly connected to the surface of the rotating rod (202b).

5. The multi-channel powder sample quality detection device based on a microfluidic chip according to claim 4, wherein: An adjusting disc (203c) is fixedly connected to the surface of the driving rod (202a), and the adjusting disc (203c) is located between the top sealing plate (201e) and the bottom sealing plate (201f).

6. The multi-channel powder sample quality detection device based on a microfluidic chip according to claim 5, characterized in that: A positioning strip (203d) is fixedly connected inside the top sealing plate (201e), and a shielding plate (203e) is fixedly connected to the surface of the support plate (201a).

7. The multi-channel powder sample quality detection device based on a microfluidic chip according to claim 5 or 6, characterized in that: The feeding component (200) further includes a limiting member (204), arranged on the surface of the rotating rod (202b), including a positioning ring (204a) fixed to the surface of the rotating rod (202b), and a support shell (204b) is rotatably connected to the surface of the rotating rod (202b).

8. The multi-channel powder sample quality detection device based on a microfluidic chip according to claim 7, wherein: A lifting frame (204c) is slidably connected inside the support shell (204b), and a compression spring (204d) is fixedly connected to the top of the lifting frame (204c).

9. The multi-channel powder sample quality detection device based on a microfluidic chip according to claim 8, characterized in that: A pull rod (204e) is fixedly connected to the top of the lifting frame (204c), and a plug rod (204f) is fixedly connected to the bottom of the lifting frame (204c).

10. The multi-channel powder sample quality detection device based on a microfluidic chip according to claim 9, wherein: A limiting groove (V) is formed in the support plate (201a), and a positioning groove (W) is formed on one side of the limiting groove (V).

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