Sample containing device for testing concentration of liquid sample

Abstract

The utility model provides a sample containing device for liquid sample concentration testing, which belongs to the technical field of sample concentration testing, and comprises a test tube, a box body, a grid assembly and a plurality of groups of buffer assemblies, the test tube is used for containing a liquid sample to be subjected to concentration detection; the upper end of the box body is open, and a plurality of holes for test tubes to penetrate through are formed in a cover plate at the upper end of the box body; the grid assembly is arranged in the box body, a plurality of transverse plates and a plurality of vertical plates of the grid assembly are used for forming a plurality of placing cavities for placing test tubes in the box body, and the plurality of placing cavities are respectively arranged in one-to-one correspondence with the plurality of holes in the vertical direction; the multiple groups of buffer assemblies are arranged in the multiple groups of placing cavities in a one-to-one correspondence manner, and the buffer assemblies form clamping bags in a buffer state for the test tubes in the placing cavities. The sample containing device for testing the concentration of the liquid sample, provided by the utility model, has the technical effects that the shaking of liquid in the test tube can be reduced, the buffer effect on the test tube is good, and the concentration detection result is not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid concentration testing, and more specifically, relates to a sample holding device for testing the concentration of a liquid sample. Background Art

[0002] Currently, in the medical or chemical industry, when detecting or testing the concentration of a liquid sample, a sample holding device such as a test tube, a beaker, a test tube rack, a tray, a storage box, etc. is required. Then, the liquid sample is sent to a testing room for testing. There are liquid concentration detection devices or instruments in the testing room, and the detection methods of these detection devices or instruments include spectrophotometry, colorimetry, fluorescence method, etc.

[0003] In the prior art, the sample holding devices used, such as test tubes, beakers, etc., among which the test tubes used have different lengths. When multiple liquid samples need to be collected, multiple test tubes need to be taken. After collection, the multiple test tubes are placed on a test tube rack, and then the multiple test tubes are transported to the testing room to detect the concentration of the liquid in the test tubes. When transporting the test tubes, the test tube rack is generally placed on a trolley, and the test tube rack will vibrate during transportation. When the amount of liquid sample in the test tube is large, the liquid sample will spill or overflow during transportation, which will affect the test results. When the top opening of the test tube is sealed with a sealing plug, the liquid sample inside the test tube will also shake. For liquid samples with relatively strict requirements, the shaking should be minimized during transportation, otherwise it will affect the test results. Therefore, it is necessary to design a sample holding device that can buffer the test tube during transportation to reduce the shaking or vibration of the liquid sample during transportation so as not to affect the concentration test results. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sample holding device for testing the concentration of a liquid sample, aiming to solve the technical problem in the prior art that it is easy to buffer when transporting the test tube for liquid sample concentration detection and it is not easy to reduce the shaking of the liquid sample.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: providing a sample holding device for testing the concentration of a liquid sample, including:

[0006] A test tube for holding the liquid sample to be subjected to concentration detection;

[0007] A box body with an open upper end, a cover plate adapted to cover the open end is arranged at the upper end of the box body, and a plurality of holes for the test tube to pass through are arranged on the cover plate;

[0008] A grid component is disposed inside the box body. The grid component includes a plurality of horizontal plates and a plurality of vertical plates that are perpendicular to each other and are all vertically arranged. The plurality of horizontal plates and the plurality of vertical plates are used to form a plurality of placement cavities for placing the test tubes inside the box body. In the vertical direction, the plurality of placement cavities respectively correspond to the plurality of holes one by one;

[0009] A plurality of buffer components are respectively disposed in the plurality of placement cavities one by one. The buffer components form a sandwich that buffers the test tubes in the placement cavities.

[0010] In a possible implementation manner, a horizontally arranged partition board is detachably connected inside the box body. The partition board divides the internal space of the box body into an upper half area and a lower half area. The grid component is located above the partition board. An arc-shaped buffer pad is arranged at the inner bottom of the placement cavity. The test tube is arranged on the upper end of the buffer pad.

[0011] In a possible implementation manner, the buffer component includes:

[0012] A plurality of side components are all located on the inner wall of the box body and / or the inner wall of the grid component. The plurality of side components all have an elastic force that elastically pushes towards the test tube to form a sandwich that buffers the side of the test tube;

[0013] A bottom component is disposed on the bottom wall of the placement cavity and has an elastic force that elastically pushes towards the bottom of the test tube to form an elastic push that buffers the bottom of the test tube.

[0014] In a possible implementation manner, the side component includes:

[0015] An adsorbent is disposed on the inner wall of the box body and / or the inner wall of the grid component, and the set position can be adjusted;

[0016] A plurality of first springs, each of which has one end connected to the adsorbent and has an elastic force that elastically pushes in the horizontal direction;

[0017] A buffer plate is vertically arranged, and one side is connected to the other ends of the plurality of first springs;

[0018] A plurality of second springs, each of which has one end connected to the other side of the buffer plate. The second springs have an elastic force that elastically pushes in the horizontal direction;

[0019] A contact plate is arc-shaped, and one side surface is connected to the other ends of the plurality of second springs. The contact plate is vertically arranged and the convex side surface faces the test tube. The spaces between the contact plates of the plurality of side components enclose a space suitable for placing the test tube. The contact plate is used to slidably contact the side wall of the test tube. The first springs and the second springs are combined to form an elastic push on the side of the test tube.

[0020] In a possible implementation, the bottom component includes:

[0021] A plurality of third springs, each having one end abutted against the bottom wall of the placement cavity;

[0022] An arc-shaped plate, which is arc-shaped, with the convex side facing the bottom wall of the placement cavity and connected to the other ends of the plurality of third springs. The upper end of the arc-shaped plate is arranged to support and contact the bottom wall of the test tube. The plurality of third springs form an elastic support for the arc-shaped plate to push the bottom of the test tube in a buffered state.

[0023] In a possible implementation, a plurality of rectangular holes are provided on the side of the box body, and the rectangular holes are arranged in alignment with the placement cavity in the horizontal direction. A baffle is inserted into the rectangular holes. The baffle is used to form a partition in the height direction of the space in the placement cavity. The bottom component is placed on the baffle, and the bottom wall of the test tube is located above the bottom component.

[0024] In a possible implementation, the baffle is inserted into the placement cavity near the side of the box body, and a plurality of the rectangular holes are provided in a spaced manner in the height direction of the box body.

[0025] In a possible implementation, a temperature measuring instrument is inserted into the rectangular hole. The temperature measuring instrument abuts against the outer wall of the test tube and is used to measure the temperature of the test tube.

[0026] In a possible implementation, a heating component is inserted into the rectangular hole. The heating component is adapted to abut against the outer wall of the test tube and heat the test tube.

[0027] In a possible implementation, an opening is provided on one side of the lower half region of the box body. A drawer is slidably inserted into the lower half region of the box body. The drawer is drawn out and inserted from the opening. The interior of the drawer has a region for holding a container containing a liquid sample.

[0028] The beneficial effects of a sample holding device for liquid sample concentration testing provided by the present utility model are as follows: Compared with the prior art, the sample holding device for liquid sample concentration testing of the present utility model includes a test tube, a box body, a grid component, and multiple groups of buffer components. The test tube is used to hold the liquid sample to be tested for concentration. The upper end of the box body is open, and a cover plate suitable for covering the open end is provided at the upper end of the box body. Multiple holes for the test tube to pass through are provided on the cover plate. The grid component is arranged inside the box body. The grid component includes multiple horizontal plates and multiple vertical plates that are perpendicularly arranged and are all vertically arranged. The multiple horizontal plates and multiple vertical plates are used to form multiple placement cavities for placing test tubes inside the box body. In the vertical direction, the multiple placement cavities respectively correspond to the multiple holes one by one. Multiple groups of buffer components are respectively arranged in multiple groups of placement cavities one by one. The buffer components form a buffer-like clamping of the test tube in the placement cavity, solving the technical problem that it is easy to buffer when transferring the test tube for liquid sample concentration testing and it is not easy to reduce the shaking of the liquid sample, and having the technical effects of being able to reduce the shaking of the liquid in the test tube, having a good buffering effect on the test tube, and not affecting the concentration test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic structural diagram of a sample holding device for liquid sample concentration testing provided by an embodiment of the present utility model (the double-headed arrow in the figure indicates the pulling direction of the drawer);

[0031] Figure 2 It is a sectional view of a sample holding device for liquid sample concentration testing provided by an embodiment of the present utility model;

[0032] Figure 3 It is a schematic structural diagram of the side component of a sample holding device for liquid sample concentration testing provided by an embodiment of the present utility model;

[0033] Figure 4 It is a schematic structural diagram of the side component and the bottom component of a sample holding device for liquid sample concentration testing provided by an embodiment of the present utility model;

[0034] Figure 5 It is a schematic structural diagram of a sample holding device for liquid sample concentration testing provided by an embodiment of the present utility model without the cover plate covered and with a baffle inserted;

[0035] Figure 6For Figure 5 Schematic diagram of the cooperation structure between the baffle and the bottom component in

[0036] Figure 7 For Figure 6 Top view of the baffle structure in

[0037] Figure 8 For Figure 6 Top view of the bottom component structure in

[0038] Figure 9 Top view of the cooperation structure between the heating component and the test tube of a sample holding device for liquid sample concentration testing provided by an embodiment of the present utility model.

[0039] Explanation of reference numerals:

[0040] 1. Test tube; 2. Box body; 3. Grid component; 4. Buffer component; 41. Side component; 411. Adsorbing member; 412. First spring; 413. Buffer plate; 414. Second spring; 415. Contact plate; 42. Bottom component; 421. Third spring; 422. Arc plate; 5. Cover plate; 51. Hole; 6. Placing cavity; 7. Partition board; 8. Buffer pad; 9. Rectangular hole; 10. Baffle; 11. Heating component; 111. Telescopic rod; 112. Heating plate; 12. Drawer. Detailed implementation manners

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0042] Please refer to Figures 1 to 9 together, and now a sample holding device for liquid sample concentration testing provided by the present utility model will be described. The sample holding device for liquid sample concentration testing includes a test tube 1, a box body 2, a grid component 3 and multiple groups of buffer components 4. The test tube 1 is used to hold the liquid sample to be subjected to concentration detection; the upper end of the box body 2 is open, and a cover plate 5 adapted to cover the open end is provided at the upper end of the box body 2. A plurality of holes 51 for the test tube 1 to pass through are provided on the cover plate 5; the grid component 3 is arranged inside the box body 2. The grid component 3 includes a plurality of horizontal plates and a plurality of vertical plates that are perpendicular to each other and are all arranged vertically. The plurality of horizontal plates and the plurality of vertical plates are used to form a plurality of placing cavities 6 for placing the test tube 1 inside the box body 2. In the vertical direction, the plurality of placing cavities 6 are respectively arranged corresponding to the plurality of holes 51 one by one; multiple groups of buffer components 4 are respectively arranged corresponding to the multiple groups of placing cavities 6 one by one, and the buffer components 4 form a buffer-like clamping of the test tube 1 inside the placing cavity 6.

[0043] A sample holding device for testing the concentration of liquid samples provided by the present utility model, compared with the prior art, places multiple test tubes 1 by using a box body 2 and a grid component 3. Only one test tube 1 can be placed in each placement cavity 6. The test tube 1 is surrounded by a buffer component 4 in a buffered manner, which can reduce the shaking of the test tube 1 during the transfer process, solves the technical problem that it is easy to buffer when transferring the test tube 1 for detecting the concentration of liquid samples and is not easy to reduce the shaking of the liquid sample, and has the technical effects of being able to reduce the shaking of the liquid in the test tube 1, having a good buffering effect on the test tube 1, and not affecting the concentration detection result.

[0044] The test tube 1 used in this embodiment is a common test tube 1 in the prior art. The box body 2 is in the shape of a cuboid, with an open upper end for inserting and removing the test tube 1. After the test tube 1 is inserted into the placement cavity 6, the upper end of the test tube 1 should be exposed outside the box body 2 for convenient later handling. The cover plate 5 can cover the open mouth, and when the buffer component 4 is installed into the placement cavity 6, the cover plate 5 can be used to cover it. When the test tube 1 is inserted into the placement cavity 6, the buffer component 4 can elastically push against the outer wall of the test tube 1 and does not hinder the insertion of the test tube 1 into the placement cavity 6. That is, the clamping area formed by the buffer component 4 surrounding the test tube 1 is slightly smaller than the area formed by the outer circle of the test tube 1, that is, the test tube 1 can be smoothly inserted into the area surrounded by the buffer component 4 and can be elastically pushed by the buffer component 4. The height of the box body 2 is set to match the height of the test tube 1. The grid component 3 is a structural member in the prior art. After being placed inside the box body 2, in combination with the inner wall of the box body 2 and its own structure, it can form a plurality of grid-shaped placement cavities 6.

[0045] In some embodiments, please refer to Figures 1 to 9 , a partition plate 7 arranged horizontally is detachably connected inside the box body 2. The partition plate 7 divides the internal space of the box body 2 into an upper half area and a lower half area. The grid component 3 is located above the partition plate 7. An arc-shaped buffer pad 8 is arranged at the inner bottom of the placement cavity 6, and the test tube 1 is arranged on the upper end of the buffer pad 8. When the height of the box body 2 is relatively high, the partition plate 7 can be used to divide the box body 2 into upper and lower areas. The grid component 3 is located in the upper half area, and the lower half area can be used to place other containers. The buffer pad 8 plays a role in buffering the bottom of the test tube 1 and reduces the shaking of the test tube 1 during transportation.

[0046] Specifically, the buffer component 4 is arranged above the buffer pad 8, and the two do not affect each other. The buffer pad 8 can be put in and taken out through the open mouth at the upper end of the box body 2.

[0047] In some embodiments, please refer to Figures 1 to 9, the buffer assembly 4 includes multiple groups of side components 41 and a bottom component 42. The multiple groups of side components 41 are all located on the inner wall of the box body 2 and / or the inner wall of the grid component 3. The multiple groups of side components 41 all have an elastic force that elastically pushes against the test tube 1, so as to form a clamping state in a buffer state for the side of the test tube 1; the bottom component 42 is arranged on the bottom wall of the placement cavity 6 and has an elastic force that elastically pushes against the bottom of the test tube 1, forming an elastic push in a buffer state for the bottom of the test tube 1. In this embodiment, at least two groups of side components 41 are provided. If three or four groups are provided, they should be arranged in a circular array form. Since the test tube 1 is in a cylindrical structure, the multiple groups of side components 41 can all form an elastic push against the side of the test tube 1, making the test tube 1 more stable during transportation and minimizing shaking to the greatest extent. In the placement cavity 6 near the side of the box body 2, some of the side components 41 are connected to the inner wall of the box body 2, and some are connected to the horizontal plate and the vertical plate; the side components 41 in the placement cavity 6 inside the grid component 3 are all connected to the horizontal plate and the vertical plate.

[0048] Specifically, multiple groups of buffer assemblies 4 are arranged at intervals along the height direction of the box body 2, and the bottom of the buffer assembly 4 located at the lowest position can be in contact with the buffer pad 8.

[0049] In some embodiments, please refer to Figures 1 to 9, the side component 41 includes an adsorbent 411, a plurality of first springs 412, a buffer plate 413, a plurality of second springs 414, and a contact plate 415. The adsorbent 411 is provided on the inner wall of the box body 2 and / or the inner wall of the grid component 3, and its set position can be adjusted; one end of each of the plurality of first springs 412 is connected to the adsorbent 411, and has an elastic force for elastic pushing in the horizontal direction; the buffer plate 413 is arranged vertically, and one side is connected to the other ends of the plurality of first springs 412; one end of each of the plurality of second springs 414 is connected to the other side of the buffer plate 413, and the second spring 414 has an elastic force for elastic pushing in the horizontal direction; the contact plate 415 is arc-shaped, and one side surface is connected to the other ends of the plurality of second springs 414. The contact plate 415 is arranged vertically and the convex side surface faces the test tube 1; the spaces suitable for placing the test tube 1 are formed between the contact plates 415 of multiple groups of side components 41. The contact plate 415 is used for slidingly contacting the side wall of the test tube 1, and the first spring 412 and the second spring 414 are combined to form an elastic push against the side of the test tube 1. The adsorbent 411 is a magnet (when the box body 2 or the grid component 4 is made of iron or magnetic) or an adhesive, and can adsorb or adhere to the inner wall of the box body 2, the cross plate or the vertical plate to achieve fixed connection. The cooperation of the first spring 412 and the second spring 414 can form an elastic push against the test tube 1, so that the test tube 1 has a large buffering force and minimizes the shaking of the test tube 1. To reduce the friction between the contact plate 415 and the outer wall of the test tube 1 and facilitate the smooth insertion of the test tube 1 into the placement cavity 6, the contact plate 415 is set to be arc-shaped. During the insertion and removal of the test tube 1, the upper end and the lower end of the contact plate 415 can guide the test tube 1 to move smoothly downward or upward, playing a good guiding role for the test tube 1.

[0050] In some embodiments, please refer to Figures 1 to 9 , the bottom component 42 includes a plurality of third springs 421 and an arc-shaped plate 422. One end of each of the plurality of third springs 421 abuts against the bottom wall of the placement cavity 6; the arc-shaped plate 422 is arc-shaped, and the convex side surface faces the bottom wall of the placement cavity 6 and is connected to the other ends of the plurality of third springs 421. The upper end of the arc-shaped plate 422 is arranged to support and contact the bottom wall of the test tube 1. The plurality of third springs 421 form an elastic support for the arc-shaped plate 422 to push against the bottom of the test tube 1 in a buffered state. The third spring 421 is arranged obliquely and can elastically push the arc-shaped plate 422. The arc of the arc-shaped plate 422 matches the arc of the bottom wall of the test tube 1 with a round bottom. In this way, when the bottom of the test tube 1 contacts the arc-shaped plate 422, a better buffering effect can be achieved. The setting position of the third spring 421 does not affect the setting of the first spring 412 or the second spring 414. The arc-shaped plate 422 is located below the area surrounded by the plurality of contact plates 415.

[0051] Figure 7The middle baffle is in the shape of a handle, and six third springs 421 are provided. The top view of the arc-shaped plate 422 is circular, and the side view is arc-shaped, that is, the arc-shaped plate 422 is a structure similar to a hemispherical shape.

[0052] In some embodiments, referring to Figures 1 to 9 , a plurality of rectangular holes 9 are provided on the side of the box body 2. The rectangular holes 9 are arranged in alignment with the placement cavity 6 in the horizontal direction. A baffle 10 is inserted into the rectangular holes 9. The baffle 10 is used to form a partition in the height direction of the space in the placement cavity 6. A bottom assembly 42 is placed on the partition 7, and the bottom wall of the test tube 1 is located at the upper end of the bottom assembly 42. When using a shorter test tube 1, for the convenience of inserting and removing the test tube 1, the rectangular holes 9 are located above the partition 7, that is, on the side of the upper half area. The setting of the rectangular holes 9 does not affect the use of the test tube 1. A baffle 10 is provided in the rectangular holes 9. The baffle 10 can be clamped and locked in the rectangular holes 9, that is, after the baffle 10 stays in the rectangular holes 9, when the baffle 10 is not moved, the baffle 10 is fixed in the rectangular holes 9 or on the box body 2. In this way, the test tube 1 can be supported or held by the bottom assembly 42. For a shorter test tube 1, the head or upper end of the test tube 1 can protrude from the upper end of the box body 2, which is convenient for the placement and removal of the test tube 1.

[0053] Specifically, when placing the bottom assembly 42 on the baffle 10, the operation can be carried out by opening the cover plate 5.

[0054] In some embodiments, referring to Figures 1 to 9 , the baffle 10 is inserted into the placement cavity 6 near the side of the box body 2. A plurality of rectangular holes 9 are provided in the height direction of the box body 2 and are arranged at intervals. The placement cavity 6 inside the grille assembly is not provided with a baffle 10, that is, the baffle 10 cannot reach the position of this placement cavity 6. The baffle 10 can only be inserted into the placement cavity 6 in a circle near the side of the box body 2. That is to say, for a shorter test tube 1, it can be placed in the placement cavity 6 near the side of the box body 2, and for a longer test tube 1, it can be placed in the placement cavity 6 inside the grille assembly 3.

[0055] In order to measure the temperature of the liquid sample, in some embodiments, referring to Figures 1 to 9 , a temperature measuring instrument (not shown in the figure) is inserted into the rectangular hole 9. The temperature measuring instrument abuts against the outer wall of the test tube 1 and is used to measure the temperature of the test tube 1. The temperature measuring instrument in this embodiment is a product using existing technology, and the temperature can be measured by contacting the outer wall of the test tube 1.

[0056] In some embodiments, referring to Figures 1 to 9, a heating component 11 is inserted into the rectangular hole 9. The heating component 11 is adapted to abut against the outer wall of the test tube 1 and heat the test tube 1. The heating component 11 in this embodiment adopts an existing technology product. When it is necessary to heat the liquid sample, by contacting the outer wall of the test tube 1 through the heating component 11, the outer wall of the test tube 1 can be heated, and then the liquid sample inside can be heated. The heating component 11 can be a heater or a heating wire, etc., passing through the rectangular hole 9 and abutting against the outer wall of the test tube 1. It should be noted that when using the temperature measuring instrument or the heating component 11, the baffle 10 in use should be avoided.

[0057] Specifically, the heating component 11 includes a telescopic rod 111 and a heating plate 112. The heating plate 112 is arc-shaped and can fit on the outer wall of the test tube 1. The telescopic rod 111 can be regarded as a support member for holding by hand, which can facilitate the heating plate to pass through the rectangular hole 9 and extend into the interior of the box body 2.

[0058] In some embodiments, please refer to Figures 1 to 9 , an opening is provided on one side of the lower half area of the box body 2. A drawer 12 is slidably inserted into the lower half area of the box body 2. The drawer 12 is drawn out and inserted from the opening. The interior of the drawer 12 has an area for holding a container containing a liquid sample. When there is a beaker or a flask containing a liquid sample, it can be placed in the drawer 12. A buffer pad 8 as shown above is also provided in the area inside the drawer 12, which can buffer the container and reduce the shaking of the liquid sample.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sample holding device for testing the concentration of a liquid sample, characterized in that, Comprising: A test tube for containing a liquid sample to be subjected to concentration detection; A box body with an open upper end. A cover plate adapted to seal the open end is provided at the upper end of the box body, and a plurality of holes for the test tube to pass through are provided on the cover plate; A grid assembly is provided inside the box body. The grid assembly includes a plurality of horizontal plates and a plurality of vertical plates that are perpendicular to each other and are both vertically arranged. The plurality of horizontal plates and the plurality of vertical plates are used to form a plurality of placement cavities for placing the test tubes inside the box body. In the vertical direction, the plurality of placement cavities are respectively arranged corresponding to the plurality of holes one by one; Multiple groups of buffer assemblies are respectively provided corresponding to multiple groups of the placement cavities. The buffer assemblies form a clamping state that buffers the test tubes inside the placement cavities.

2. The sample holding device for testing the concentration of a liquid sample according to claim 1, wherein, A horizontally arranged partition plate is detachably connected inside the box body. The partition plate divides the internal space of the box body into an upper half area and a lower half area. The grid assembly is located above the partition plate. A buffer pad in an arc shape is provided at the inner bottom of the placement cavity, and the test tube is placed on the buffer pad.

3. The sample holding device for liquid sample concentration testing according to claim 1, wherein, The buffer assembly includes: Multiple groups of side components, all located on the inner wall of the box body and / or the inner wall of the grid assembly. Multiple groups of the side components all have an elastic force that elastically pushes against the test tube, so as to form a clamping state that buffers the side of the test tube; A bottom component is provided on the bottom wall of the placement cavity, and has an elastic force that elastically pushes against the bottom of the test tube, forming an elastic push against the bottom of the test tube in a buffered state.

4. The sample holding device for liquid sample concentration testing according to claim 3, characterized in that, The side component includes: An adsorbent, provided on the inner wall of the box body and / or the inner wall of the grid assembly, and the set position can be adjusted; Multiple first springs, all having one end connected to the adsorbent, and having an elastic force that elastically pushes in the horizontal direction; A buffer plate is vertically arranged, and one side is connected to the other ends of the multiple first springs; Multiple second springs, all having one end connected to the other side of the buffer plate. The second springs have an elastic force that elastically pushes in the horizontal direction; A contact plate is in an arc shape, and one side surface is connected to the other ends of the multiple second springs. The contact plate is vertically arranged and the convex side surface faces the test tube. A space suitable for placing the test tube is formed between the contact plates of multiple groups of the side components. The contact plate is used for sliding contact with the side wall of the test tube, and the first springs and the second springs are combined to form an elastic push against the side of the test tube.

5. The sample holding device for liquid sample concentration testing according to claim 3, wherein, The bottom component includes: Multiple third springs, all having one end abutted against the bottom wall of the placement cavity; An arc-shaped plate is in an arc shape, and the convex side surface faces the bottom wall of the placement cavity and is connected to the other ends of the multiple third springs. The upper end of the arc-shaped plate is provided to support and contact the bottom wall of the test tube. The multiple third springs form an elastic support for the arc-shaped plate to elastically push against the bottom of the test tube in a buffered state.

6. The sample holding device for liquid sample concentration testing according to claim 3, wherein A plurality of rectangular holes are provided on the side of the box body. The rectangular holes are aligned with the placement cavities in the horizontal direction. A baffle is inserted into the rectangular holes. The baffle is used to form a partition in the height direction of the space inside the placement cavity. The bottom component is placed on the partition plate, and the bottom wall of the test tube is located above the bottom component.

7. The sample holding device for liquid sample concentration testing according to claim 6, wherein, The baffle is inserted into the placement cavity near the side of the box body, and a plurality of rectangular holes are arranged at intervals in the height direction of the box body.

8. The sample holding device for liquid sample concentration testing according to claim 7, wherein, A temperature measuring instrument is inserted into the rectangular hole, and the temperature measuring instrument abuts against the outer wall of the test tube and is used to measure the temperature of the test tube.

9. The sample holding device for liquid sample concentration testing according to claim 7, wherein, A heating component is inserted into the rectangular hole, and the heating component is adapted to abut against the outer wall of the test tube and heat the test tube.

10. The sample holding device for liquid sample concentration testing according to claim 2, characterized in that, An opening is provided on one side of the lower half area of the box body, and a drawer is slidably inserted into the lower half area of the box body. The drawer is drawn out and inserted from the opening, and the inside of the drawer has an area for holding a container containing a liquid sample.

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