A test tube support device for laboratory use

Abstract

The present invention discloses a test tube support device for laboratory use, belonging to the field of medical biotechnology; a test tube for laboratory use, comprising a test tube body, wherein the test tube body includes a straight tube and a thin tube, and the straight tube and the thin tube are connected by a frustum-shaped tube; a test tube support device for laboratory use further includes a support table, on which a support cover is fixedly connected, an air pump is arranged inside the support cover, a negative pressure hole is arranged on the support cover, and a negative pressure cover communicated with the negative pressure hole is fixedly connected inside the support cover; for this test tube for laboratory use and its test tube support device, the test tube is a cylindrical test tube with a thick upper end and a thin lower end, which is convenient for accurately extracting reagents. At the same time, the test tube carrying the reagent is vertically fixed. During extraction, it is equipped with a negative pressure function, thereby avoiding the diffusion of toxic reagents. The support device is used to prevent shaking, thereby avoiding situations such as inhaling air bubbles, inaccurate liquid intake, and even test tube breakage.

Description

Technical Field

[0001] The present invention relates to the field of medical biotechnology, and particularly to a test tube support device for laboratories. Background Art

[0002] In research institutes and enterprises specializing in medical biology, test tubes are one of the most frequently used devices, serving as storage containers or reaction containers for a small amount of reagents, and the reagents are liquids. Test tubes can be divided into various types such as ordinary test tubes, branched test tubes, and centrifuge test tubes.

[0003] Currently, when experimental personnel use a micro syringe to extract the reagents stored in a test tube, due to the overly large inner diameter at the bottom of the test tube, the amount of reagent inhaled is inaccurate when precisely extracting the reagent, resulting in waste of precious reagents. Moreover, it is mostly handheld, and even skilled technicians can hardly avoid jitter, thus leading to a decrease in stability when taking the reagent. To overcome the jitter problem, a simple bracket is generally used to fix the test tube. However, the existing brackets on the market have relatively single functions. When extracting reagents, especially toxic reagents, when the toxic reagents volatilize and diffuse, they cannot effectively protect the experimental personnel in a timely manner, posing a very large potential safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the inner diameter at the bottom of the test tube is too large, the amount of reagent inhaled is inaccurate when precisely extracting the reagent, and the existing brackets cannot effectively protect the experimental personnel in a timely manner when toxic reagents volatilize and diffuse, and to propose a test tube support device for laboratories.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A test tube for laboratories, including a test tube body, the test tube body includes a straight tube and a thin tube, and the straight tube and the thin tube are connected by a frustum-shaped tube; a scale is provided on the thin tube.

[0007] Preferably, to improve the sealing performance during storage, it further includes a cap that can cover the straight tube.

[0008] A test tube support device for laboratories further includes a support table, a support cover is fixedly connected to the support table, an air pump is provided inside the support cover, a negative pressure hole is provided on the support cover, a negative pressure cover communicated with the negative pressure hole is fixedly connected inside the support cover, a first pipeline is connected between the negative pressure cover and the input end of the air pump, and the output end of the air pump is connected with a second pipeline; a clamping mechanism fixedly connected to the support table, the support table is used for clamping the test tube body, and the bottom of the test tube body is located on the support cover.

[0009] To facilitate the observation of the reagent inside the test tube body, preferably, it further includes: a slideway fixedly connected to the support platform, a slide plate slidably connected to the slideway, and a third support rod fixedly connected to the slide plate; one end of the third support rod away from the slide plate is slidably connected to a third adjustment rod, and a third locking knob is provided on the third support rod; a convex lens is fixedly connected to the top of the third adjustment rod.

[0010] To prevent the convex lens from shaking, preferably, it further includes: a third guiding rod fixedly connected to the support platform, a lower pressing plate slidably connected to the third guiding rod, and the lower pressing plate is in contact with the upper surface of the slide plate; a box body fixedly connected to the bottom of the support platform, and the second pipeline penetrates through the box body; a fixing plate fixedly connected inside the box body, a piston assembly is fixedly connected to the bottom of the fixing plate, and the piston assembly is communicated with the second pipeline through a third pipeline; a contacting plate is fixedly connected to the power end of the piston assembly, a tension spring is connected between the contacting plate and the fixing plate, a sliding plate is slidably connected inside the box body, and a sliding rod is fixedly connected between the sliding plate and the lower pressing plate; the lower surface of the contacting plate is in contact with the upper surface of the sliding plate; a pressure relief valve is provided in the second pipeline, and the pressure relief valve is located on the side of the third pipeline away from the air pump.

[0011] To detect whether the reagent volatilizes, preferably, it further includes: a detection cylinder fixedly connected inside the box body, the bottom of the detection cylinder is communicated with the second pipeline through a connecting pipe; an inserting plate inserted into the detection cylinder, and a detection reagent is provided on the inserting plate.

[0012] To achieve supplementary lighting, preferably, it further includes: a T-shaped plate fixedly connected to the support platform, a second adjustment rod is rotatably connected to the side wall of the T-shaped plate, a turntable is fixedly connected to the second adjustment rod, a through hole is provided on the turntable, and a light regulating sheet is installed in the through hole; a second locking knob is further provided on the side wall of the T-shaped plate; a light source is fixedly connected to the top of the T-shaped plate, and the turntable is located between the light source and the test tube body.

[0013] To facilitate the adjustment of the height of the turntable and the light source, preferably, a second support rod is fixedly connected to the support platform, a first adjustment rod is slidably connected to the second support rod, and a first locking knob is further provided on the second support rod; the bottom of the T-shaped plate is fixedly connected to the top of the first adjustment rod.

[0014] Preferably, the clamping mechanism includes: a first support rod fixedly connected to the support platform, a clamping ring is fixedly connected to the first support rod, and the test tube body is sleeved inside the clamping ring; an elastic sheet is fixedly connected inside the clamping ring, and the elastic sheet abuts against the side wall of the test tube body.

[0015] Preferably, a rubber pad is fixedly connected to the support cover, and the bottom of the test tube body is located on the rubber pad.

[0016] Compared with the prior art, the present invention provides a test tube support device for laboratory use, which has the following beneficial effects:

[0017] 1. For the test tube for laboratory use, a cylindrical test tube with a thick upper end and a thin lower end is formed through a straight tube and a thin tube. When extracting with a micro syringe, since the inner diameter of the thin tube is relatively thin, when extracting the reagent, the liquid column will drop very significantly. By observing the dropping scale through the scale, accurate extraction can be achieved, ensuring the accuracy of the reagent extraction amount and avoiding waste of precious reagents;

[0018] 2. For the test tube support device for laboratory use, due to the negative pressure formed by the negative pressure holes, when the toxic reagent volatilizes and diffuses, the gas containing the toxic reagent is timely sucked away through the negative pressure holes, effectively protecting the test personnel in time and reducing potential safety hazards. In addition, the test tube body is supported by the support device, replacing the hand-held method, solving the problem of instability of the test tube body when sucking the reagent with a micro syringe, and avoiding problems such as inhaling air bubbles and needle tip breakage;

[0019] 3. For the test tube support device for laboratory use, during the process of the gas being discharged through the second pipeline, under the action of the pressure relief valve, there will be a certain air pressure in the second pipeline. Then, this air pressure pushes the contact plate downward through the piston plate, and then drives the sliding plate downward. The lower pressing plate is driven downward through the sliding rod to press the sliding plate tightly, avoiding accidental movement of the convex lens during the process of extracting the reagent;

[0020] For the test tube for laboratory use and its test tube support device, the test tube is a cylindrical test tube with a thick upper end and a thin lower end, which is convenient for accurately extracting the reagent. At the same time, an adjustable support device is adopted to vertically fix the test tube containing the reagent. During extraction, a negative pressure function is equipped to avoid the diffusion of toxic reagents, and the support device is used to avoid shaking, thus avoiding situations such as inhaling air bubbles, inaccurate liquid intake, and even test tube breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a test tube for laboratory use proposed by the present invention;

[0022] Figure 2 is a schematic structural diagram of a test tube support device for laboratory use proposed by the present invention Figure 1 ;

[0023] Figure 3 is a schematic structural diagram of a test tube support device for laboratory use proposed by the present invention Figure 2 ;

[0024] Figure 4 is a schematic structural diagram of a test tube support device for laboratory use proposed by the present invention Figure 3 ;

[0025] Figure 5Schematic diagram of the structure of a box body of a test tube support device for laboratory use proposed by the present invention;

[0026] Figure 6 Schematic diagram of the structure of a turntable of a test tube support device for laboratory use proposed by the present invention;

[0027] Figure 7 Front view of a support cover of a test tube support device for laboratory use proposed by the present invention;

[0028] Figure 8 Schematic diagram of the structure of a slideway of a test tube support device for laboratory use proposed by the present invention;

[0029] Figure 9 Schematic diagram of the structure of a clamping ring of a test tube support device for laboratory use proposed by the present invention;

[0030] Figure 10 Schematic diagram of the structure of a test tube storage cylinder for laboratory use proposed by the present invention.

[0031] In the figure: 1. Test tube body; 101. Straight tube; 102. Frustum tube; 103. Thin tube; 104. Cap; 105. Storage cylinder; 2. Support table; 201. First support rod; 202. Clamping ring; 203. Elastic sheet; 3. Second support rod; 301. First adjusting rod; 302. First locking knob; 303. T-shaped plate; 304. Light source; 305. Second adjusting rod; 306. Second locking knob; 4. Turntable; 401. Through hole; 402. Light-dimming sheet; 5. Support cover; 501. Air pump; 502. Negative pressure hole; 503. Negative pressure cover; 504. First pipe; 505. Second pipe; 6. Rubber pad; 7. Slideway; 701. Slide plate; 702. Third support rod; 703. Third locking knob; 704. Third adjusting rod; 705. Convex lens; 8. Box body; 801. Pressure relief valve; 802. Piston assembly; 803. Fixed plate; 804. Adjacent plate; 805. Pulling spring; 806. First guide rod; 807. Third pipe; 9. Sliding plate; 901. Second guide rod; 902. Sliding rod; 903. Lower pressing plate; 904. Third guide rod; 10. Detection cylinder; 1001. Insertion plate; 1002. Detection reagent; 1003. Connecting pipe. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0034] Embodiment 1:

[0035] Referring to Figure 1 , a test tube for laboratory use includes a test tube body 1. The test tube body 1 includes a straight tube 101 and a thin tube 103. The inner diameter of the thin tube 103 is 5 - 20 mm. The straight tube 101 and the thin tube 103 are connected by a frustum-shaped tube 102, and are smoothly transitioned through the frustum-shaped tube 102.

[0036] A scale is provided on the thin tube 103, and scales may also be provided on the straight tube 101 and the frustum-shaped tube 102.

[0037] Through the straight tube 101 and the thin tube 103, a cylindrical test tube with a thick upper end and a thin lower end is formed. The thick upper end is convenient for liquid dispensing; the thin lower end can make all the trace reagents enter the lower end and generate a relatively high liquid column after centrifugation. When extracting with a micro syringe, the extraction needle is directly inserted into the thin tube 103 for extraction. Since the inner diameter of the thin tube 103 is relatively thin, when extracting the reagent, the drop of the liquid column will be very obvious. By observing the drop scale through the scale, accurate extraction can be achieved, ensuring the accuracy of the reagent extraction amount and avoiding waste of precious reagents.

[0038] A test tube for laboratory use disclosed in this embodiment further includes a cap 104. The cap 104 can cover the straight tube 101, and the cap 104 covers the open end of the straight tube 101; when the cap 104 covers the open end of the straight tube 101, it is in a sealed state. By means of the cap 104, the sealing performance of the test tube body 1 when storing reagents is improved, avoiding economic losses or safety accidents caused by reagent volatilization.

[0039] As Figure 1 and Figure 10 , a test tube for laboratory use disclosed in this embodiment further includes a storage tube 105. After the test tube body 1 is used, that is, when storing for a long time, the test tube body 1 is inserted into the storage tube 105. At this time, the thin tube 103 is suspended, and the top of the storage tube 105 abuts against the cap 104, which can effectively avoid the thin tube 103 being broken due to force when accidentally shaken, and improve the safety of the long-term use of the test tube body 1.

[0040] Embodiment 2:

[0041] Referring to Figures 2 - 9, which is basically the same as Embodiment 1. On the basis of Embodiment 1, a test tube support device for laboratory use is proposed, which is used in cooperation with the test tube body 1 in Embodiment 1.

[0042] A test tube support device for laboratory use further includes a support table 2. A support cover 5 is fixedly connected to the support table 2. An air pump 501 is provided in the support cover 5. A negative pressure hole 502 is provided on the support cover 5. A negative pressure cover 503 communicating with the negative pressure hole 502 is fixedly connected in the support cover 5. A first pipeline 504 is connected between the negative pressure cover 503 and the input end of the air pump 501. The output end of the air pump 501 is connected with a second pipeline 505; a clamping mechanism fixedly connected to the support table 2, and the support table 2 is used for clamping the test tube body 1, and the bottom of the test tube body 1 is located on the support cover 5.

[0043] The bottom of the test tube body 1 being located on the support cover 5 means that the bottom of the thin tube 103 is in contact with the top of the support cover 5, and the support cover 5 plays a supporting role.

[0044] Such as Figure 2 and Figure 3 , the negative pressure holes 502 are small holes and are distributed in an annular shape, and the thin tube 103 is located at the exact center of the annular distribution.

[0045] When it is necessary to extract the reagent in the test tube body 1, the test tube body 1 is vertically fixed through the clamping mechanism, and the thin tube 103 at the bottom is located on the support cover 5. Then, the cap 104 is removed, and extraction is carried out through a micro syringe. During the extraction process, the air pump 501 is started, and negative pressure is generated at the negative pressure hole 502 through the negative pressure cover 503 for suction, and then the gas is discharged through the second pipeline 505. The other end of the second pipeline 505 can be connected to a relatively far place, such as outdoors.

[0046] Due to the negative pressure formed by the negative pressure holes 502, when the toxic reagent volatilizes and diffuses, the gas containing the toxic reagent is timely sucked away through the negative pressure holes 502, effectively protecting the test personnel in a timely manner and reducing potential safety hazards.

[0047] The test tube body 1 is supported by the support device, replacing the hand-held mode, solving the problem that the test tube body 1 is unstable when a micro syringe aspirates the reagent, and avoiding problems such as inhaling air bubbles and needle tip breakage.

[0048] Such as Figure 2 、 Figure 3 、 Figure 8The test tube support device for laboratory disclosed in this embodiment also includes: a slideway 7 fixedly connected to the support platform 2, there are two slideways 7, and a slide plate 701 is slidably connected to the two slideways 7. The slide plate 701 is stuck on the slideway 7 and can only move along the slideway 7 and cannot be separated from the slideway 7. A third support rod 702 is fixedly connected to the slide plate 701; a third adjustment rod 704 is slidably connected to the end of the third support rod 702 away from the slide plate 701, and a third locking knob 703 is provided on the third support rod 702; a convex lens 705 is fixedly connected to the top of the third adjustment rod 704.

[0049] The third adjusting rod 704 can be moved up and down and then fixed by the third locking knob 703 .

[0050] When extracting the reagent, before starting the air pump 501, first move the convex lens 705 to the same height as the reagent in the capillary 103 through the third adjustment rod 704, then adjust the position of the convex lens 705 according to the focal length of the convex lens 705 by moving the slide plate 701 horizontally, and then start the air pump 501. Through the magnifying function of the convex lens 705, the experimenter can better observe the change in the reagent liquid level height in the capillary 103 to achieve precise extraction.

[0051] The convex lens 705 can also be replaced by a camera, which captures the image and then transmits it to a computer for display.

[0052] like Figure 2 , Figure 3 , Figure 5 , Figure 8 The test tube support device for laboratory use disclosed in this embodiment also includes: a third guide rod 904 fixedly connected to the support platform 2, the number of the third guide rods 904 is 4, and the 4 third guide rods 904 are slidably connected with a lower pressure plate 903, and the lower pressure plate 903 is in contact with the upper surface of the slide plate 701, that is, the lower pressure plate 903 is pressed on the slide plate 701.

[0053] like Figure 5, a box body 8 fixedly connected to the bottom of the support platform 2, and a second pipeline 505 penetrates through the box body 8; a fixing plate 803 fixedly connected inside the box body 8, a piston assembly 802 is fixedly connected to the bottom of the fixing plate 803, and the piston assembly 802 is communicated with the second pipeline 505 through a third pipeline 807; a sticking plate 804 is fixedly connected to the power end of the piston assembly 802, a tension spring 805 is connected between the sticking plate 804 and the fixing plate 803, a first guiding rod 806 is fixedly connected to the sticking plate 804, and the first guiding rod 806 is slidably connected to the fixing plate 803. A sliding plate 9 is slidably connected inside the box body 8, a sliding rod 902 is fixedly connected between the sliding plate 9 and the lower pressing plate 903, a second guiding rod 901 is fixedly connected inside the box body 8, the sliding plate 9 is fixed on the second guiding rod 901, and the sliding rod 902 is slidably connected to the fixing plate 803, the top of the box body 8, and the support platform 2. The lower surface of the sticking plate 804 is in contact with the upper surface of the sliding plate 9.

[0054] A pressure relief valve 801 is arranged inside the second pipeline 505, and the pressure relief valve 801 is located on the side of the third pipeline 807 away from the air pump 501. When the air pressure in the second pipeline 505 reaches the set value, the pressure relief valve 801 automatically opens to reduce the pressure and then automatically closes.

[0055] The piston assembly 802 includes a piston cylinder, a piston plate slidably connected inside the piston cylinder, and a piston rod fixedly connected to the piston plate.

[0056] The piston assembly 802 is fixedly connected to the bottom of the fixing plate 803, which means that the piston cylinder is fixed to the bottom of the fixing plate 803.

[0057] The sticking plate 804 is fixedly connected to the power end of the piston assembly 802, which means that the end of the piston rod away from the piston plate is fixedly connected to the sticking plate 804.

[0058] After adjusting the rear convex lens 705, when the air pump 501 is started, during the process of the gas being discharged through the second pipeline 505, under the action of the pressure relief valve 801, there will be a certain air pressure in the second pipeline 505, and then this air pressure enters the piston cylinder through the third pipeline 807, pushes the sticking plate 804 to move downward through the piston plate, then drives the sliding plate 9 to move downward, and drives the lower pressing plate 903 to move downward through the sliding rod 902 to press the sliding plate 701 tightly, so as to prevent the convex lens 705 from accidentally moving during the process of extracting the reagent.

[0059] After the extraction is completed and the air pump 501 stops working, under the pulling force of the tension spring 805, the sticking plate 804 returns to the initial position. At this time, the lower pressing plate 903 no longer applies pressure to the sliding plate 701, and the sliding plate 701 can slide again.

[0060] Such as Figure 5, a test tube support device for laboratory disclosed in this embodiment further includes: a detection cylinder 10 fixedly connected inside the box body 8. The detection cylinder 10 is square, and the bottom of the detection cylinder 10 is connected to the second pipeline 505 through a connecting pipe 1003; a plug board 1001 inserted into the detection cylinder 10, and a detection reagent 1002 is provided on the plug board 1001.

[0061] After the reagent extraction is completed, the plug board 1001 can be removed to observe the detection reagent 1002 to check if there is any leakage of toxic reagents. If there is, immediately open the window for ventilation and perform disinfection treatment.

[0062] The detection reagent 1002 is detachably connected to the plug board 1001. When extracting different toxic reagents, different detection reagents 1002 are replaced.

[0063] Embodiment 3:

[0064] Refer to Figures 2 - 9 , which is basically the same as Embodiment 2. On the basis of Embodiment 2, the overall technical solution is further optimized.

[0065] Such as Figure 2 、 Figure 3 、 Figure 6 , a test tube support device for laboratory disclosed in this embodiment further includes: a T-shaped plate 303 fixedly connected to the support table 2. A second adjusting rod 305 is rotatably connected to the side wall of the T-shaped plate 303. A turntable 4 is fixedly connected to the second adjusting rod 305. Through holes 401 are provided on the turntable 4. The number of through holes 401 is 4 - 8, and they are circumferentially distributed on the turntable 4. A light-dimming sheet 402 is installed in each through hole 401; a second locking knob 306 is also provided on the side wall of the T-shaped plate 303; a light source 304 fixedly connected to the top of the T-shaped plate 303. The turntable 4 is located between the light source 304 and the test tube body 1, and the light emitted by the light source 304 can pass through the uppermost through hole 401.

[0066] The light-dimming sheet 402 can be plastic sheets with different light transmittances to adjust the intensity of the light.

[0067] When extracting the reagent, turn on the light source 304. After the emitted light passes through the uppermost through hole 401, it irradiates onto the test tube body 1 for supplementary lighting. Then, the experimenter observes through the convex lens 705 and then performs the extraction. The light facilitates the experimenter to observe the specific position of the syringe glass needle in the test tube.

[0068] According to the on-site environment, rotate the turntable 4 to rotate different through holes 401 to the uppermost position, synchronize the plastic sheets with different light transmittances inside, that is, the light-dimming sheets 402, to adjust different brightnesses, and then fix them through the second locking knob 306, which is convenient for the experimenter to observe well.

[0069] As Figure 6 A second support rod 3 is fixedly connected to the support platform 2. A first adjusting rod 301 is slidably connected to the second support rod 3, and the second support rod 3 is also provided with a first locking knob 302. The bottom of the T-shaped plate 303 is fixedly connected to the top of the first adjusting rod 301.

[0070] According to the different liquid levels in the thin tube 103 of the test tube body 1, the height of the light source 304 and the turntable 4 can be flexibly adjusted through the first adjusting rod 301, and then the height is fixed through the first locking knob 302.

[0071] Embodiment 3:

[0072] Referring to Figures 2 - 9 It is basically the same as Embodiment 2. On the basis of Embodiment 2, the technical solution of the clamping mechanism is refined.

[0073] As Figure 2 、 Figure 3 、 Figure 4 、 Figure 9 The clamping mechanism includes: a first support rod 201 fixedly connected to the support platform 2, a clamping ring 202 fixedly connected to the first support rod 201, and the test tube body 1 is sleeved in the clamping ring 202; an elastic sheet 203 is fixedly connected in the clamping ring 202, and the elastic sheet 203 abuts against the side wall of the test tube body 1, and the number of the elastic sheets 203 is 3 - 5.

[0074] When the reagent needs to be extracted, the test tube body 1 is sequentially penetrated through the clamping ring 202 from the bottom, that is, from the thin tube 103, and continuously moved downward. Then, the thin tube 103 abuts against the top of the support cover 5, and the side wall of the straight tube 101 abuts against the elastic sheet 203. The elastic sheet 203 deforms under force, and the test tube body 1 is clamped and fixed by the reaction force of the elastic sheet 203.

[0075] A rubber pad 6 is fixedly connected to the support cover 5, and the bottom of the test tube body 1 is located on the rubber pad 6.

[0076] The bottom of the test tube body 1, that is, the bottom of the thin tube 103, is located on the rubber pad 6 to prevent knocking and protect the test tube body 1 from damage.

[0077] When the test tube body 1 is penetrated through the clamping ring 202, when the thin tube 103 moves to the bottom of the clamping ring 202, one hand pulls the straight tube 101 downward, and the other hand supports the thin tube 103 to keep it stable and avoid shaking until the thin tube 103 is located on the rubber pad 6 to avoid accidental knocking and breaking of the thin tube 103.

[0078] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A test tube support device for laboratory use, including a test tube for laboratory use, the test tube for laboratory use includes a test tube body (1), the test tube body (1) includes a straight tube (101) and a thin tube (103), and the straight tube (101) and the thin tube (103) are connected by a frustum tube (102); The capillary tube (103) is provided with a scale, characterized in that, It further includes: A support platform (2), a support cover (5) is fixedly connected to the support platform (2), an air pump (501) is arranged in the support cover (5), a negative pressure hole (502) is arranged on the support cover (5), a negative pressure cover (503) communicated with the negative pressure hole (502) is fixedly connected in the support cover (5), a first pipeline (504) is connected between the negative pressure cover (503) and the input end of the air pump (501), and an output end of the air pump (501) is connected with a second pipeline (505); A clamping mechanism fixedly connected to the support platform (2), the support platform (2) is used for clamping the test tube body (1), and the bottom of the test tube body (1) is located on the support cover (5); It further includes: A slideway (7) fixedly connected to the support platform (2), a slide plate (701) is slidably connected to the slideway (7), and a third support rod (702) is fixedly connected to the slide plate (701); One end of the third support rod (702) away from the slide plate (701) is slidably connected with a third adjusting rod (704), and a third locking knob (703) is arranged on the third support rod (702); The top of the third adjusting rod (704) is fixedly connected with a convex lens (705); It further includes: A third guiding rod (904) fixedly connected to the support platform (2), a lower pressing plate (903) is slidably connected to the third guiding rod (904), and the lower pressing plate (903) is in contact with the upper surface of the slide plate (701); A box body (8) fixedly connected to the bottom of the support platform (2), and the second pipeline (505) penetrates through the box body (8); A fixing plate (803) fixedly connected in the box body (8), a piston assembly (802) is fixedly connected to the bottom of the fixing plate (803), and the piston assembly (802) is communicated with the second pipeline (505) through a third pipeline (807); A contact plate (804) is fixedly connected to the power end of the piston assembly (802), a tension spring (805) is connected between the contact plate (804) and the fixing plate (803), a sliding plate (9) is slidably connected in the box body (8), and a sliding rod (902) is fixedly connected between the sliding plate (9) and the lower pressing plate (903); The lower surface of the contact plate (804) is in contact with the upper surface of the sliding plate (9); A pressure relief valve (801) is arranged in the second pipeline (505), and the pressure relief valve (801) is located on the side of the third pipeline (807) away from the air pump (501).

2. The test tube support device for laboratory use according to claim 1, wherein It further includes: A detection cylinder (10) fixedly connected in the box body (8), and the bottom of the detection cylinder (10) is communicated with the second pipeline (505) through a connecting pipe (1003); An insertion plate (1001) inserted in the detection cylinder (10), and a detection reagent (1002) is arranged on the insertion plate (1001).

3. The test tube support device for laboratory use according to claim 1, characterized in that, Further included are: A T-shaped plate (303) fixedly connected to the support table (2). A second adjusting rod (305) is rotatably connected to the side wall of the T-shaped plate (303). A turntable (4) is fixedly connected to the second adjusting rod (305). A through hole (401) is provided on the turntable (4), and a light-dimming sheet (402) is installed in the through hole (401); A second locking knob (306) is further provided on the side wall of the T-shaped plate (303); A light source (304) fixedly connected to the top of the T-shaped plate (303), and the turntable (4) is located between the light source (304) and the test tube body (1).

4. The test tube support device for laboratory use according to claim 3, characterized in that, A second support rod (3) is fixedly connected to the support table (2). A first adjusting rod (301) is slidably connected to the second support rod (3), and a first locking knob (302) is further provided on the second support rod (3); The bottom of the T-shaped plate (303) is fixedly connected to the top of the first adjusting rod (301).

5. A test tube support device for laboratory use according to claim 1, characterized in that, The clamping mechanism includes: A first support rod (201) fixedly connected to the support table (2). A clamping ring (202) is fixedly connected to the first support rod (201), and the test tube body (1) is sleeved in the clamping ring (202); An elastic sheet (203) is fixedly connected inside the clamping ring (202), and the elastic sheet (203) abuts against the side wall of the test tube body (1).

6. The test tube support device for laboratory use according to claim 1, characterized in that A rubber pad (6) is fixedly connected to the support cover (5), and the bottom of the test tube body (1) is located on the rubber pad (6).

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