Sample kit for detecting avian influenza

Abstract

The utility model discloses a sample kit for detecting avian influenza, and relates to the technical field of kits. The sample kit for detecting the avian influenza comprises a kit body and test tubes, the outer surface of the kit body is fixedly sleeved with a rectangular box, an ejection assembly and a fixing assembly, the ejection assembly is arranged on the rectangular box, the fixing assembly is arranged on the kit body, and the fixing assembly comprises two rectangular fixing plates; the two bidirectional threaded rods drive the two left-right corresponding moving sleeves to move towards the opposite positions, the two left-right corresponding moving sleeves drive the four fixing rods to slide and penetrate out of the outer surfaces of the corresponding arc-shaped plates through the connecting plates connected with the two left-right corresponding moving sleeves, and therefore fixing of the sealing plate is completed. The sample kit for detecting the avian influenza is fixed more firmly, the situation that the test tube falls out or even is damaged due to the fact that the kit and the protective cover are opened under the action of external force in a clamping mode is avoided, and the practicability of the sample kit for detecting the avian influenza is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test kits, in particular to a sample test kit for detecting avian influenza. Background Art

[0002] Avian influenza (avian influenza), also known as avian influenza virus infection, is an infectious disease of poultry caused by influenza A virus of the Orthomyxoviridae family and the Influenzavirus genus. It causes a variety of symptoms ranging from respiratory infections to sepsis. The mortality rate of poultry after infection is very high.

[0003] After collecting the avian influenza sample, the avian influenza sample needs to be placed inside the test tube, and then the test tube is placed inside the reagent box. The existing reagent box and the box are mostly fixed by snapping. When in use, you only need to close the lid, and its automatic snap-fit assembly will snap together. It has the advantage of being simple and convenient. However, if the reagent box falls from a height, the reagent box and the protective cover are snapped open by external force, causing the test tube to fall out or even damage the test tube. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a sample kit for detecting avian influenza, which can solve the problem that if the kit falls from a high place, the kit and the protective cover are connected in a snap-fit manner and can be easily opened under the action of external force, causing the test tube to fall out or even causing damage to the test tube.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a sample kit for detecting avian influenza, comprising a kit and a test tube;

[0006] The outer surface of the reagent box is fixedly sleeved with a rectangular box and an ejection assembly, and the ejection assembly is arranged on the rectangular box;

[0007] A fixing assembly is provided on the reagent box and includes two rectangular fixing plates, which are respectively fixedly connected to the front and rear surfaces of the reagent box;

[0008] The upper surface of the rectangular fixed plate is provided with a sliding groove, and the upper surface of the rectangular fixed plate is fixedly connected to two fixed plates. The opposite surfaces of the two fixed plates are rotatably connected with a bidirectional threaded rod, and the left end of the bidirectional threaded rod rotates and passes through the left side of the left fixed plate;

[0009] Among them, the left end of the bidirectional threaded rod is fixedly connected to a turntable, the outer wall of the bidirectional threaded rod is threaded with two moving sleeves, the lower surfaces of the two moving sleeves are fixedly connected to sliders, and the two sliders are slidably connected to the sliding groove.

[0010] Preferably, the upper surfaces of the two movable sleeves are fixedly connected with connecting plates, and the opposite surfaces of the two connecting plates are fixedly connected with first fixing rods;

[0011] The structures of the two rectangular fixing plates are exactly the same. A sealing plate is provided on the upper surface of the reagent box, and a plurality of first placement grooves are provided on the lower surface of the sealing plate.

[0012] Preferably, two positioning plates are fixedly connected to the upper surface of the reagent box, and the upper surfaces of the two positioning plates are both provided with rectangular plates;

[0013] The upper surfaces of the two positioning plates slide through the upper surfaces of the corresponding rectangular plates, and the two rectangular plates are fixedly connected to the sealing plate;

[0014] The lower surfaces of the two rectangular plates are fixedly connected to the two arc-shaped plates, and the four first fixing rods are slid through the outer surfaces of the corresponding positioning plates at one end away from the connecting plate.

[0015] Preferably, the fixing assembly further comprises a first placement plate, the first placement plate being fixedly connected to the interior of the reagent box, the first placement plate being provided with a plurality of groups of fixing holes, the plurality of groups of fixing holes being composed of a second placement slot and four cross-shaped card holes;

[0016] The bottom of the test kit is fixedly connected to a plurality of rubber blocks arranged in a rectangular array, and the bottom of the test kit is provided with a plurality of through holes, and the plurality of through holes are communicated with the rectangular box;

[0017] A second placement plate is provided inside the rectangular box, and a plurality of arc-shaped grooves corresponding to the plurality of second placement grooves are opened on the upper surface of the second placement plate.

[0018] Preferably, the ejection assembly comprises two rectangular blocks, both of which are fixedly connected to the bottom of the rectangular box;

[0019] The opposite surfaces of the two rectangular blocks are fixedly connected with a second fixing rod, the outer wall of the second fixing rod is slidably sleeved with a sliding sleeve, the opposite surfaces of the two sliding sleeves are fixedly connected with a spring, and the spring is movably sleeved on the outer wall of the second fixing rod.

[0020] Preferably, the upper surfaces of the two sliding sleeves are fixedly connected with second concave plates, the concave portions of the two second concave plates are both plugged with support plates, and both are rotatably connected via first fixing pins;

[0021] Wherein, two first concave plates are provided on the upper surface of the second fixing rod, and the two first concave plates are fixedly connected to the second placement plate;

[0022] The upper ends of the two support plates are inclined and inserted into the concave parts of the corresponding first concave plates, and are rotatably connected by the second fixing pin;

[0023] There are three fixed components, and the structures of the three fixed components are exactly the same;

[0024] Among them, the outer wall of the test tube is fixedly sleeved with a fixed sleeve, the lower surface of the fixed sleeve is fixedly connected with four clamping rods that are all adapted to the clamping holes, and the upper surface of the test tube is provided with a protective cover.

[0025] There are multiple test tubes, and the structures of the multiple test tubes are exactly the same.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] (1) The sample test kit for detecting avian influenza has two bidirectional threaded rods driving two corresponding movable sleeves to move to opposite positions. The two corresponding movable sleeves drive four fixed rods to slide through the outer surface of the corresponding arc-shaped plate through the connecting plate connected thereto, thereby completing the fixation of the sealing plate. Compared with the traditional test kit using a snap-fit method, the fixation is more secure, and the test kit and the protective cover using a snap-fit method will not be opened under the action of external force, causing the test tube to fall out or even causing damage to the test tube, thereby improving the practicality of the sample test kit for detecting avian influenza.

[0028] (2) The sample test kit for detecting avian influenza is provided with a plurality of rubber blocks, clamping holes and clamping rods. The plurality of rubber blocks face each other to clamp and fix the lower end of the test tube without damaging the surface of the test tube. The clamping holes and clamping rods stabilize the upper end of the test tube, thereby improving the stability of the test tube after placement.

[0029] (3) When taking out the test tubes from the sample test kit for detecting avian influenza, the staff only needs to reverse the two turntables to move the two corresponding fixed rods to opposite positions. Without the obstruction of the four fixed rods, the three springs will reset and drive the two sliding sleeves connected thereto to move to relative positions, and then drive the second placement plate to move upward through the two support plates and the two first concave plates. The second placement plate will push the multiple test tubes upward, and then move the upper ends of the multiple test tubes out of the interior of the test kit, thereby making it easier for the staff to take the test tubes and improving the convenience of taking the test tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0032] Figure 2 This is a bottom view of the lower surface of the sealing plate of the utility model;

[0033] Figure 3 This is a schematic top view of the upper surface of the first placement plate of the present invention;

[0034] Figure 4 This is a schematic diagram of the interior of the utility model test kit;

[0035] Figure 5 This is a schematic diagram of the connection between the first concave plate and the second placement plate of the utility model.

[0036] Figure numerals: 1. rectangular box; 2. reagent box; 3. turntable; 4. movable sleeve; 5. rectangular fixed plate; 6. bidirectional threaded rod; 7. fixed plate; 8. connecting plate; 9. rectangular plate; 10. positioning plate; 11. arc plate; 12. first fixed rod; 13. sealing plate; 14. first placement groove; 15. first concave plate; 16. spring; 17. test tube; 18. fixed sleeve; 19. clamping rod; 20. second placement groove; 21. clamping hole; 22. first placement plate; 23. rubber block; 24. second placement plate; 25. support plate; 26. second concave plate; 27. rectangular block; 28. second fixed rod; 29. sliding sleeve; 30. slider; 31. slide groove. DETAILED DESCRIPTION

[0037] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0039] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] See also Figure 1-5 The utility model provides a technical solution: a sample kit for detecting avian influenza, comprising a kit 2 and a test tube 17, wherein the outer surface of the kit 2 is fixedly sleeved with a rectangular box 1 and an ejection assembly, and the ejection assembly is arranged on the rectangular box 1;

[0042] A fixing assembly is provided on the reagent box 2 and includes two rectangular fixing plates 5, which are respectively fixedly connected to the front and rear surfaces of the reagent box 2;

[0043] The upper surface of the rectangular fixed plate 5 is provided with a sliding groove 31, and the upper surface of the rectangular fixed plate 5 is fixedly connected to two fixed plates 7. The opposite surfaces of the two fixed plates 7 are rotatably connected to a bidirectional threaded rod 6. The left end of the bidirectional threaded rod 6 rotates through the left side of the left fixed plate 7.

[0044] Among them, the left end of the bidirectional threaded rod 6 is fixedly connected to the turntable 3, and the outer wall of the bidirectional threaded rod 6 is threadedly sleeved with two movable sleeves 4. The lower surfaces of the two movable sleeves 4 are fixedly connected to the sliders 30, and the two sliders 30 are slidably connected to the slide groove 31.

[0045] Furthermore, the upper surfaces of the two movable sleeves 4 are fixedly connected with a connecting plate 8, and the opposite surfaces of the two connecting plates 8 are fixedly connected with a first fixing rod 12;

[0046] The structures on the two rectangular fixing plates 5 are completely identical. A sealing plate 13 is provided on the upper surface of the reagent box 2 , and a plurality of first placement grooves 14 are provided on the lower surface of the sealing plate 13 .

[0047] Furthermore, two positioning plates 10 are fixedly connected to the upper surface of the reagent box 2, and a rectangular plate 9 is provided on the upper surface of the two positioning plates 10;

[0048] The upper surfaces of the two positioning plates 10 slide through the upper surfaces of the corresponding rectangular plates 9, and the two rectangular plates 9 are fixedly connected to the sealing plate 13;

[0049] The lower surfaces of the two rectangular plates 9 are fixedly connected to the two arc-shaped plates 11 , and the four first fixing rods 12 are slid through the outer surfaces of the corresponding positioning plates 10 at one end away from the connecting plate 8 .

[0050] Furthermore, the fixing assembly further includes a first placement plate 22, which is fixedly connected to the interior of the reagent box 2. The first placement plate 22 is provided with multiple sets of fixing holes, each of which consists of a second placement groove 20 and four cross-shaped card holes 21.

[0051] Among them, the bottom of the reagent box 2 is fixedly connected with a plurality of rubber blocks 23 arranged in a rectangular array. The bottom of the reagent box 2 is provided with a plurality of through holes, and the plurality of through holes are communicated with the rectangular box 1;

[0052] A second placement plate 24 is provided inside the rectangular box 1 , and a plurality of arc-shaped grooves corresponding to the plurality of second placement grooves 20 are formed on the upper surface of the second placement plate 24 .

[0053] Furthermore, the ejection assembly includes two rectangular blocks 27, and the two rectangular blocks 27 are fixedly connected to the bottom of the rectangular box 1;

[0054] Among them, the opposite surfaces of the two rectangular blocks 27 are fixedly connected with the second fixing rod 28, the outer wall of the second fixing rod 28 is slidably sleeved with a sliding sleeve 29, and the opposite surfaces of the two sliding sleeves 29 are fixedly connected with the spring 16, which is movably sleeved on the outer wall of the second fixing rod 28.

[0055] Furthermore, the upper surfaces of the two sliding sleeves 29 are fixedly connected with the second concave plates 26, and the concave parts of the two second concave plates 26 are both plugged with support plates 25, and are both rotatably connected by the first fixing pin;

[0056] Among them, two first concave plates 15 are provided on the upper surface of the second fixing rod 28, and the two first concave plates 15 are fixedly connected to the second placement plate 24;

[0057] The upper ends of the two support plates 25 are inclined and inserted into the concave parts of the corresponding first concave plates 15, and are rotatably connected by the second fixing pin;

[0058] There are three fixed components, and the structures of the three fixed components are exactly the same;

[0059] The outer wall of the test tube 17 is fixedly sleeved with a fixed sleeve 18, and the lower surface of the fixed sleeve 18 is fixedly connected with four clamping rods 19 that are adapted to the clamping holes 21. The upper surface of the test tube 17 is provided with a protective cover.

[0060] There are multiple test tubes 17 , and the structures of the multiple test tubes 17 are exactly the same.

[0061] Furthermore, when using the sample kit for detecting avian influenza, the staff first places the avian influenza sample into the test tube 17, then covers the test tube 17 with a protective cover, and then inserts the test tube containing the avian influenza sample into the second placement groove 20. The lower end of the test tube 17 is clamped into the opposite surfaces of the two rubber blocks 23. The two rubber blocks 23 clamp the lower end of the test tube 17. Then, the lower end of the test tube 17 contacts the arc groove on the second placement plate 24 through the inner wall of the corresponding through hole, and the four clamping rods 19 are clamped into the four clamping holes 21. The other test tubes 17 are placed in the same manner.

[0062] After multiple test tubes 17 are placed, the staff member picks up the sealing plate 13 and snaps the sealing plate 13 into the interior of the reagent box 2, and makes the two positioning plates 10 pass through the interior of the two rectangular plates 9. The protective covers of the multiple test tubes 17 are inserted into the corresponding first placement grooves 14. Then, the sealing plate 13 is pressed downward. The sealing plate 13 pushes the multiple test tubes 17 downward through the multiple protective covers. The multiple test tubes 17 push the second placement plate 24 downward. The second placement plate 24 pushes the two sliding sleeves 29 to slide to opposite positions through the two support plates 25 and the two second concave plates 26, and stretches the spring 16.

[0063] Among them, subsequently, another staff member rotates the two turntables 3, and the two turntables 3 drive the two bidirectional threaded rods 6 to rotate, and the two bidirectional threaded rods 6 drive the two corresponding left and right movable sleeves 4 to move to opposite positions, and the two corresponding left and right movable sleeves 4 drive the four first fixing rods 12 to slide through the outer surface of the corresponding arc-shaped plate 11 through the connecting plate 8 connected thereto, thereby completing the fixation of the sealing plate 13. Compared with the traditional test kit adopting the card connection method, the fixation is more secure, and the test kit 2 and the protective cover adopt the card connection method to be opened under the action of external force, causing the test tube 17 to fall out or even causing damage to the test tube 17, thereby improving the practicality of the sample test kit for detecting avian influenza;

[0064] Among them, by setting up multiple rubber blocks 23, clamping holes 21 and clamping rods 19, the multiple rubber blocks 23 face the lower end of the test tube 17 to clamp and fix it without damaging the surface of the test tube 17. The clamping holes 21 and the clamping rods 19 stabilize the upper end of the test tube 17, thereby improving the stability of the test tube 17 after placement.

[0065] Furthermore, when taking out the test tube 17, the staff only needs to reverse the two turntables 3 to move the two corresponding first fixing rods 12 to opposite positions. Without the obstruction of the four first fixing rods 12, the three springs 16 will reset, driving the two sliding sleeves 29 connected thereto to move to relative positions, and then driving the second placement plate 24 to move upward through the two support plates 25 and the two first concave plates 15. The second placement plate 24 will push multiple test tubes 17 to move upward, thereby moving the upper ends of multiple test tubes 17 out of the interior of the reagent box 2, thereby making it convenient for the staff to take the test tubes 17 and improving the convenience of taking the test tubes 17.

[0066] Working Principle: When using the sample kit for detecting avian influenza, the staff first places the avian influenza sample into the test tube 17, then covers the test tube 17 with a protective cover, and then inserts the test tube containing the avian influenza sample into the second placement groove 20. The lower end of the test tube 17 is clamped into the opposite surfaces of the two rubber blocks 23, which clamp the lower end of the test tube 17. The lower end of the test tube 17 then passes through the inner wall of the corresponding through hole and contacts the arc groove on the second placement plate 24, and the four clamping rods 19 are clamped into the four clamping holes 21. The other test tubes 17 are placed in the same way.

[0067] After multiple test tubes 17 are placed, the staff member picks up the sealing plate 13 and snaps the sealing plate 13 into the interior of the reagent box 2, and makes the two positioning plates 10 pass through the interior of the two rectangular plates 9. The protective covers of the multiple test tubes 17 are inserted into the corresponding first placement grooves 14. Then, the sealing plate 13 is pressed downward. The sealing plate 13 pushes the multiple test tubes 17 downward through the multiple protective covers. The multiple test tubes 17 push the second placement plate 24 downward. The second placement plate 24 pushes the two sliding sleeves 29 to slide to opposite positions through the two support plates 25 and the two second concave plates 26, and stretches the spring 16.

[0068] Among them, subsequently, another staff member rotates the two turntables 3, and the two turntables 3 drive the two bidirectional threaded rods 6 to rotate, and the two bidirectional threaded rods 6 drive the two corresponding left and right movable sleeves 4 to move to opposite positions, and the two corresponding left and right movable sleeves 4 drive the four first fixing rods 12 to slide through the outer surface of the corresponding arc-shaped plate 11 through the connecting plate 8 connected thereto, thereby completing the fixation of the sealing plate 13. Compared with the traditional test kit adopting the card connection method, the fixation is more secure, and the test kit 2 and the protective cover adopt the card connection method to be opened under the action of external force, causing the test tube 17 to fall out or even causing damage to the test tube 17;

[0069] Among them, by setting up multiple rubber blocks 23, clamping holes 21 and clamping rods 19, the multiple rubber blocks 23 facing the lower end of the test tube 17 play a clamping and fixing role without damaging the surface of the test tube 17. The clamping holes 21 and the clamping rod 19 play a stabilizing role on the upper end of the test tube 17.

[0070] Furthermore, when taking out the test tube 17, the staff only needs to reverse the two turntables 3 to move the two corresponding first fixing rods 12 to opposite positions. Without the obstruction of the four first fixing rods 12, the three springs 16 will reset, driving the two sliding sleeves 29 connected thereto to move to relative positions, and then driving the second placement plate 24 to move upward through the two support plates 25 and the two first concave plates 15. The second placement plate 24 will push multiple test tubes 17 to move upward, thereby moving the upper ends of multiple test tubes 17 out of the interior of the reagent box 2, making it convenient for the staff to take out the test tubes 17.

[0071] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A sample kit for detecting avian influenza, characterized in that: include: Reagent kit (2) and test tubes (17); The outer surface of the reagent box (2) is fixedly sleeved with a rectangular box (1); An ejection assembly, the ejection assembly being arranged on the rectangular box (1); A fixing assembly is provided on the reagent box (2), and the fixing assembly includes two rectangular fixing plates (5). The two rectangular fixing plates (5) are respectively fixedly connected to the front and rear surfaces of the reagent box (2); The upper surface of the rectangular fixed plate (5) is provided with a sliding groove (31), the upper surface of the rectangular fixed plate (5) is fixedly connected to two fixed plates (7), the opposite surfaces of the two fixed plates (7) are rotatably connected to a bidirectional threaded rod (6), and the left end of the bidirectional threaded rod (6) is rotatably passed through the left side of the left fixed plate (7); The left end of the bidirectional threaded rod (6) is fixedly connected to the turntable (3), the outer wall of the bidirectional threaded rod (6) is threadedly sleeved with two movable sleeves (4), the lower surfaces of the two movable sleeves (4) are fixedly connected to sliders (30), and the two sliders (30) are slidably connected to the slide groove (31).

2. A sample kit for detecting avian influenza according to claim 1, characterized in that: The upper surfaces of the two movable sleeves (4) are fixedly connected to a connecting plate (8), and the opposite surfaces of the two connecting plates (8) are fixedly connected to a first fixing rod (12); The structures on the two rectangular fixing plates (5) are completely identical. A sealing plate (13) is provided on the upper surface of the reagent box (2), and a plurality of first placement grooves (14) are provided on the lower surface of the sealing plate (13).

3. The sample kit for detecting avian influenza according to claim 1, characterized in that: Two positioning plates (10) are fixedly connected to the upper surface of the reagent box (2), and a rectangular plate (9) is provided on the upper surface of the two positioning plates (10); The upper surfaces of the two positioning plates (10) respectively slide through the upper surfaces of the corresponding rectangular plates (9), and the two rectangular plates (9) are fixedly connected to the sealing plate (13); The lower surfaces of the two rectangular plates (9) are fixedly connected to two arc-shaped plates (11), and the four first fixing rods (12) are each slid away from one end of the connecting plate (8) and penetrate the outer surface of the corresponding positioning plate (10).

4. The sample kit for detecting avian influenza according to claim 1, characterized in that: The fixing assembly further comprises a first placement plate (22), the first placement plate (22) being fixedly connected to the interior of the reagent box (2), and having a plurality of groups of fixing holes formed on the first placement plate (22), the plurality of groups of fixing holes being composed of a second placement groove (20) and four cross-shaped clamping holes (21); The bottom of the reagent box (2) is fixedly connected to a plurality of rubber blocks (23) arranged in a rectangular array, and the bottom of the reagent box (2) is provided with a plurality of through holes, and the plurality of through holes are all communicated with the rectangular box (1); A second placement plate (24) is provided inside the rectangular box (1), and a plurality of arc-shaped grooves corresponding to the plurality of second placement grooves (20) are provided on the upper surface of the second placement plate (24).

5. The sample kit for detecting avian influenza according to claim 1, characterized in that: The ejection assembly comprises two rectangular blocks (27), both of which are fixedly connected to the bottom of the rectangular box (1); The opposite surfaces of the two rectangular blocks (27) are fixedly connected to a second fixed rod (28), the outer wall of the second fixed rod (28) is slidably sleeved with a sliding sleeve (29), the opposite surfaces of the two sliding sleeves (29) are fixedly connected to a spring (16), and the spring (16) is movably sleeved on the outer wall of the second fixed rod (28).

6. A sample kit for detecting avian influenza according to claim 5, characterized in that: The upper surfaces of the two sliding sleeves (29) are fixedly connected with second concave plates (26), and the concave portions of the two second concave plates (26) are both plugged with support plates (25), and are both rotatably connected via a first fixing pin; Wherein, two first concave plates (15) are provided on the upper surface of the second fixing rod (28), and the two first concave plates (15) are fixedly connected to the second placement plate (24); The upper ends of the two support plates (25) are inserted into the concave portions of the corresponding first concave plates (15) in an inclined shape, and are both rotatably connected via a second fixing pin; There are three fixed components, and the structures of the three fixed components are exactly the same; The outer wall of the test tube (17) is fixedly sleeved with a fixed sleeve (18), the lower surface of the fixed sleeve (18) is fixedly connected with four clamping rods (19) each of which is adapted to the clamping hole (21), and the upper surface of the test tube (17) is provided with a protective cover. There are multiple test tubes (17), and the structures of the multiple test tubes (17) are exactly the same.

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