Food quality detection device convenient for liquid chromatographic analysis

Abstract

The utility model relates to the technical field of food quality detection, and particularly discloses a food quality detection device convenient for liquid chromatography analysis, which comprises a supporting mechanism, the supporting mechanism comprises a base, an arc-shaped opening is formed in the position, close to the middle, of the outer wall of the side surface of the base, and a supporting plate is clamped on the inner wall of the circumference of the base in a sliding manner; the upper end and the lower end of the experiment cylinder are open; the damping mechanisms are annularly and uniformly distributed on the inner wall of the bottom of the base; when the chromatographic column is normally used, the bottom damping mechanism is used for supporting, when the chromatographic column is pressed down due to impact of external force, the buffer spring is compressed for buffering, and the damping buffer is compressed to form damping force, so that elastic potential energy generated by compression of the buffer spring is reduced, and the buffer spring tends to be stable quickly; and the chromatographic column is fast and stable, so that the influence on the detection experiment of the chromatographic column is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of food quality detection, and in particular relates to a food quality detection device which is convenient for liquid chromatography analysis. Background Art

[0002] Food sampling is one of the basic means of food quality inspection. It is a regulatory measure to inspect foods sold on the market through random sampling to verify that they comply with national food safety standards. A liquid chromatography analysis device is usually used in food quality inspection.

[0003] In a Chinese patent with publication number CN216594952U, a food quality inspection device that is convenient for liquid chromatography analysis is mentioned. The device is improved for the transfer of chromatographic columns. A hinged top cover is provided on the top of the placement barrel. The top cover is opened or closed, and the placement plate is raised and lowered by the action of a pull rope and a compression spring. When the top cover is buckled with the placement barrel, the pull rope pulls the placement plate down, so that the top end of the chromatographic column is retracted into the placement barrel; and when the top cover is opened, the placement plate moves up as the pull rope is released, so that the chromatographic column is re-extended out of the placement barrel for easy removal.

[0004] However, when the above device is in use, the compression spring at the bottom of the chromatographic column only plays a pulling role. After the device is impacted, the vibration of the compression spring will drive the chromatographic column to vibrate, and the vibration energy is not easy to dissipate, which affects the analysis results of the chromatographic column.

[0005] Therefore, those skilled in the art have proposed a food quality detection device that is convenient for liquid chromatography analysis to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a food quality detection device which is convenient for liquid chromatography analysis, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A food quality detection device for facilitating liquid chromatography analysis, comprising:

[0009] A support mechanism, the support mechanism comprising a base, an arc-shaped opening is opened near the middle of the side outer wall of the base, and a support plate is slidably clamped on the circumferential inner wall of the base;

[0010] An experimental tube, wherein the upper and lower ends of the experimental tube are open;

[0011] The shock absorbing mechanism is evenly distributed in a ring shape and installed on the bottom inner wall of the base, and the bottom of the support plate is attached to the top outer wall of the shock absorbing mechanism.

[0012] Preferably, a mounting plate is rotatably clamped on the circumferential inner wall of the experimental cylinder near the bottom, and an annularly distributed mounting holes are opened on the top outer wall of the mounting plate. Chromatographic columns are clamped on the circumferential inner walls of the mounting holes, and the bottom of the chromatographic column is in contact with the surface of the support plate.

[0013] Preferably, an adjustment mechanism is installed at the center position of the bottom outer wall of the support plate, and the adjustment mechanism includes a handle and a connecting rod. The connecting rod is fixedly installed at the center position of the bottom outer wall of the mounting plate, one end of the connecting rod passes through the experimental tube, one end of the handle is installed at one end of the connecting rod, and one end of the handle passes through the arc opening and is located on the outside of the base.

[0014] Preferably, the shock absorbing mechanism includes a fixed seat, which is fixedly mounted on the bottom inner wall of the base, a damping buffer is fixedly mounted on the top outer wall of the fixed seat, a supporting seat is mounted on the top of the damping buffer, the supporting seat is attached to the bottom outer wall of the support plate, and a buffer spring is wound around the circumferential outer wall of the damping buffer.

[0015] Preferably, a mounting opening is opened on one side outer wall of the experimental cylinder, an observation window is installed on the inner wall of the mounting opening, and a top cover is installed on the top outer wall of the experimental cylinder.

[0016] Preferably, it also includes an electric telescopic rod, a connecting plate, a top plate and an electric clamp, the electric telescopic rod is installed on both sides of the top outer wall of the base, the connecting plate is installed on both sides of the top cover, the connecting plate is installed at one end of the extension rod of the electric telescopic rod, a circular opening is opened on the top outer wall of the top cover, the top plate is clamped on the inner wall of the circular opening, the electric clamp is installed on the bottom outer wall of the top plate, and the electric clamp is located above the chromatographic column.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The utility model places the experimental tube on the surface of the shock absorbing mechanism. The chromatographic column is supported by the bottom shock absorbing mechanism during normal use. When the chromatographic column is pressed downward by an external force, the buffer spring is compressed to buffer, and the damping buffer is compressed to form a damping force, thereby reducing the elastic potential energy generated by the compression of the buffer spring, so that the buffer spring quickly tends to stabilize, and then the chromatographic column quickly stabilizes, thereby avoiding affecting the detection experiment of the chromatographic column.

[0019] (2) The utility model provides a handle and a connecting rod, and by rotating the handle at the arc-shaped mouth, it is convenient to rotate the mounting plate inside the experimental tube, thereby mobilizing the chromatographic column, and mobilizing the chromatographic column to be observed to the observation window for observation, thereby facilitating observation of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of a partial three-dimensional structure of a device according to Embodiment 1 of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the support mechanism and the shock absorbing mechanism of the first embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the cutaway structure of the device of Embodiment 1 of the present utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of the second embodiment of the present utility model;

[0025] In the figure: 1. Support mechanism; 2. Experimental tube; 3. Adjustment mechanism; 4. Observation window; 5. Top cover;

[0026] 6. Mounting plate; 7. Chromatographic column; 8. Mounting hole; 9. Shock absorption mechanism; 10. Support plate; 11. Electric telescopic rod; 12. Connecting plate; 13. Top plate; 14. Electric clamp;

[0027] 101. base; 102. arc-shaped opening;

[0028] 301. handle; 302. connecting rod;

[0029] 901, fixing seat; 902, buffer spring; 903, damping buffer; 904, supporting seat. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] See also Figure 1-Figure 4 As shown, a food quality detection device for liquid chromatography analysis includes:

[0033] The supporting mechanism 1 includes a base 101, an arc-shaped opening 102 is formed near the middle of the side outer wall of the base 101, and a supporting plate 10 is slidably connected to the circumferential inner wall of the base 101;

[0034] The experimental tube 2 has openings at the upper and lower ends;

[0035] The shock absorbing mechanism 9 is evenly distributed in a ring shape and is installed on the bottom inner wall of the base 101 , and the bottom of the support plate 10 is attached to the top outer wall of the shock absorbing mechanism 9 .

[0036] As can be seen from the above, the experimental cylinder 2 is placed inside the supporting mechanism 1 and supported by the base 101, the shock absorbing mechanism 9 and the supporting plate 10. After the experimental cylinder 2 is impacted, it is buffered by the shock absorbing mechanism 9 and the force is quickly unloaded, so that the device tends to be stable, reducing the possibility of errors in the chromatographic analysis results of the device.

[0037] Specifically, the mounting plate 6 is rotatably clamped on the circumferential inner wall of the experimental cylinder 2 near the bottom, and the top outer wall of the mounting plate 6 is provided with annular mounting holes 8, and the circumferential inner walls of the mounting holes 8 are clamped with chromatographic columns 7, and the bottom of the chromatographic columns 7 is in contact with the surface of the support plate 10.

[0038] As can be seen from the above, the food detection experiment is carried out through the chromatographic column 7, the chromatographic column 7 is fixed on the inner wall of the mounting hole 8 of the mounting plate 6, and the bottom is supported by the support plate 10.

[0039] Specifically, an adjustment mechanism 3 is installed at the center position of the bottom outer wall of the support plate 10, and the adjustment mechanism 3 includes a handle 301 and a connecting rod 302. The connecting rod 302 is fixedly installed at the center position of the bottom outer wall of the mounting plate 6, and one end of the connecting rod 302 passes through the experimental tube 2. One end of the handle 301 is installed at one end of the connecting rod 302, and one end of the handle 301 passes through the arc-shaped opening 102 and is located on the outside of the base 101.

[0040] As can be seen from the above, when the handle 301 is rotated, the mounting plate 6 is driven to rotate inside the experimental tube 2 through the connecting rod 302, so that the chromatographic column 7 to be observed can be moved to a suitable position for observation.

[0041] Specifically, the shock absorbing mechanism 9 includes a fixed seat 901, which is fixedly installed on the bottom inner wall of the base 101, and a damping buffer 903 is fixedly installed on the top outer wall of the fixed seat 901. A support seat 904 is installed on the top of the damping buffer 903, and the support seat 904 is attached to the bottom outer wall of the support plate 10. A buffer spring 902 is wound around the circumferential outer wall of the damping buffer 903.

[0042] As can be seen from the above, the chromatographic column 7 is supported by the bottom shock-absorbing mechanism 9 during normal use. When it is pressed downward by an external force, the buffer spring 902 is compressed for buffering, and the damping buffer 903 is compressed to form a damping force, thereby reducing the elastic potential energy generated by the compression of the buffer spring 902, so that the buffer spring 902 quickly tends to stabilize, and then the chromatographic column 7 quickly stabilizes, thereby avoiding affecting the detection experiment of the chromatographic column 7.

[0043] Specifically, a mounting opening is opened on one side outer wall of the experimental tube 2 , an observation window 4 is installed on the inner wall of the mounting opening, and a top cover 5 is installed on the top outer wall of the experimental tube 2 .

[0044] As can be seen from the above, the arranged observation window 4 facilitates the observation of the food quality detection experiment of the chromatographic column 7 .

[0045] Working principle: When conducting a food quality detection experiment using the chromatographic column 7, the components of the analyzed sample in the liquid mobile phase are effectively separated when passing through the stationary phase in the chromatographic column 7. The detection results and chromatograms can then be obtained through the detection system and the recording system. The stationary phase can be a solid or a liquid coated on the surface of the solid. The chromatographic column 7 is placed inside the experimental tube 2 for food detection. When the chromatographic column 7 is in normal use, it is supported by the bottom shock absorbing mechanism 9. When it is pressed down by an external force, the buffer spring 902 is compressed for buffering, and the damping buffer 903 is compressed to form a damping force, thereby reducing the elastic potential energy generated by the compression of the buffer spring 902, so that the buffer spring 902 quickly tends to stabilize, and then the chromatographic column 7 quickly stabilizes, thereby avoiding affecting the detection experiment of the chromatographic column 7. When observation is required, the handle 301 is turned to drive the mounting plate 6 to rotate inside the experimental tube 2 through the connecting rod 302, so that the chromatographic column 7 to be observed can be moved to a suitable position for observation.

[0046] Embodiment 2:

[0047] refer to Figure 5 As shown, this embodiment is basically the same as the previous embodiment, except that it also includes an electric telescopic rod 11, a connecting plate 12, a top plate 13 and an electric clamp 14. The electric telescopic rod 11 is installed on both sides of the top outer wall of the base 101, the connecting plates 12 are installed on both sides of the top cover 5, the connecting plate 12 is installed at one end of the extension rod of the electric telescopic rod 11, a circular opening is opened on the top outer wall of the top cover 5, the top plate 13 is clamped on the inner wall of the circular opening, the electric clamp 14 is installed on the bottom outer wall of the top plate 13, and the electric clamp 14 is located above the chromatographic column 7.

[0048] As can be seen from the above, when the chromatographic column 7 needs to be extracted, the chromatographic column 7 is clamped by the electric clamp 14, and then the electric telescopic rod 11 is started to drive the top cover 5 and the top plate 13 to move upward through the connecting plate 12, thereby driving the chromatographic column 7 to move upward, making it easier to take out the chromatographic column 7.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food quality detection device for liquid chromatography analysis, characterized in that: include: A support mechanism (1), the support mechanism (1) comprising a base (101), an arc-shaped opening (102) being provided near the middle of a side outer wall of the base (101), and a support plate (10) being slidably clamped on a circumferential inner wall of the base (101); An experimental tube (2), wherein the upper and lower ends of the experimental tube (2) are open; A shock absorbing mechanism (9) is evenly distributed in a ring shape and is installed on the bottom inner wall of the base (101), and the bottom of the support plate (10) is attached to the top outer wall of the shock absorbing mechanism (9).

2. A food quality detection device for liquid chromatography analysis according to claim 1, characterized in that: A mounting plate (6) is rotatably clamped on the circumferential inner wall of the experimental cylinder (2) near the bottom, and mounting holes (8) distributed in a ring shape are opened on the top outer wall of the mounting plate (6). Chromatographic columns (7) are clamped on the circumferential inner walls of the mounting holes (8), and the bottom of the chromatographic columns (7) is in contact with the surface of the support plate (10).

3. A food quality detection device for liquid chromatography analysis according to claim 2, characterized in that: An adjustment mechanism (3) is installed at the center position of the bottom outer wall of the support plate (10), and the adjustment mechanism (3) includes a handle (301) and a connecting rod (302). The connecting rod (302) is fixedly installed at the center position of the bottom outer wall of the mounting plate (6), one end of the connecting rod (302) passes through the experimental tube (2), one end of the handle (301) is installed on one end of the connecting rod (302), and one end of the handle (301) passes through the arc-shaped opening (102) and is located on the outside of the base (101).

4. A food quality detection device for liquid chromatography analysis according to claim 1, characterized in that: The shock absorbing mechanism (9) comprises a fixing seat (901), wherein the fixing seat (901) is fixedly mounted on the bottom inner wall of the base (101), a damping buffer (903) is fixedly mounted on the top outer wall of the fixing seat (901), a supporting seat (904) is mounted on the top of the damping buffer (903), the supporting seat (904) is attached to the bottom outer wall of the support plate (10), and a buffer spring (902) is wound around the circumferential outer wall of the damping buffer (903).

5. A food quality detection device for liquid chromatography analysis according to claim 1, characterized in that: A mounting opening is provided on one side outer wall of the experimental cylinder (2), an observation window (4) is installed on the inner wall of the mounting opening, and a top cover (5) is installed on the top outer wall of the experimental cylinder (2).

6. A food quality detection device for facilitating liquid chromatography analysis according to claim 1, characterized in that: The electric telescopic rod (11) is mounted on both sides of the top outer wall of the base (101), the connecting plate (12) is mounted on both sides of the top cover (5), the connecting plate (12) is mounted on one end of the extension rod of the electric telescopic rod (11), a circular opening is opened on the top outer wall of the top cover (5), the top plate (13) is clamped on the inner wall of the circular opening, the electric clamp (14) is mounted on the bottom outer wall of the top plate (13), and the electric clamp (14) is located above the chromatographic column (7).

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