A multifunctional test tube holder

Abstract

This invention discloses a multifunctional test tube holder, including a first support base, a second support base, a connecting plate, and a test tube heating assembly. The connecting plate includes a first surface and a second surface. The first and second support bases are arranged parallel to each other on the first surface. The first support base has a positioning groove, and the second support base has a test tube hole. The positioning groove and the test tube hole are coaxially arranged to securely engage the test tube. The test tube heating assembly is located on the second surface. The test tube heating assembly includes a base, a first slider, and a clamping member. The first slider is slidably mounted on the connecting plate. The clamping member is inserted into the slider for holding the test tube. The base is located below the clamping member for placing a heat source. During test tube heating experiments, the clamping member holds the test tube, and the first slider is slidable to move the clamping member up and down, precisely adjusting the distance between the test tube and the heat source to ensure uniform heating of the test tube. The experiment eliminates the need to repeatedly move the test tube, solving the problem of the limited functionality of existing test tube holders.

Description

Technical Field

[0001] This invention relates to the field of teaching experimental equipment technology, and in particular to a multifunctional test tube holder. Background Technology

[0002] In the teaching of chemical and biological experiments, test tube racks are used as basic experimental equipment, mainly for fixing and storing various test tubes, centrifuge tubes and other containers, so as to achieve stable placement or classified management of test tubes during experiments.

[0003] However, existing traditional test tube holders typically employ a single design, featuring only a simple test tube insertion structure, resulting in significant functional limitations and making it difficult to adapt to the comprehensive needs of complex experimental procedures. For example, in experimental scenarios involving test tube heating reactions, students need to repeatedly transfer test tubes from the holder to a water bath or other heating devices, or manually clamp the test tubes for heating. This repeated transfer process not only reduces experimental efficiency but also increases the risk of safety issues such as test tube slippage and solution spillage due to operational errors.

[0004] Therefore, existing technologies still need improvement. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a multifunctional test tube holder, which aims to solve the problem of the single function of existing test tube holders.

[0006] The multifunctional test tube holder provided in this application adopts the following technical solution:

[0007] A multifunctional test tube holder, comprising:

[0008] A connecting plate, the connecting plate including a first surface and a second surface;

[0009] A first support base and a second support base are arranged parallel to each other on the first surface; the first support base is provided with a plurality of positioning grooves; the second support base is provided with a plurality of test tube holes; the test tube holes are coaxially arranged with the positioning grooves.

[0010] A test tube heating assembly is disposed on the second surface;

[0011] The test tube heating assembly includes:

[0012] The base is used to hold the heat source;

[0013] The first slider is slidably mounted on the connecting plate;

[0014] A clamping element, one end of which is inserted into the slider and the other end of which extends above the base; the clamping element is used to hold the test tube.

[0015] Optionally, in the aforementioned multifunctional test tube holder, the clamping element includes:

[0016] A telescopic rod is hinged to the first slider; the end of the telescopic rod opposite to the first slider is provided with a female connector;

[0017] An elastic steel sheet has a male connector at one end; the male connector is hinged to the female connector on the telescopic rod; the other end of the elastic steel sheet is suspended; the elastic steel sheet is used to wrap around the test tube.

[0018] Optionally, in the multifunctional test tube holder, the cross-sectional shape of both the female connector and the male connector is hemispherical; the diameter of the female connector is greater than or equal to the diameter of the male connector.

[0019] Optionally, in the multifunctional test tube holder, a rubber pad is provided on the side of the elastic steel sheet that contacts the test tube; a first heat insulation pad is provided on the side of the elastic steel sheet that is away from the test tube.

[0020] Optionally, in the multifunctional test tube holder, the connecting plate is recessed inward on the side opposite to the second support to form a first groove; a first sliding groove is provided on the inner sidewall of the first groove; the first slider is inserted into the first sliding groove and slides along the first sliding groove.

[0021] Optionally, in the multifunctional test tube holder, the connecting plate is recessed inward on the side opposite to the first support base to form a second groove; the second groove is located below the first groove; a second sliding groove is formed on the inner sidewall of the second groove; the test tube heating assembly further includes:

[0022] The second slider is inserted into the second slide groove and slides along the second slide groove;

[0023] A support plate is hinged to the second slider; a circular perforation is provided at the center of the support plate; the support plate is used to place a beaker.

[0024] Optionally, the multifunctional test tube holder is further provided with a second heat insulation pad on the outer surface of the support plate.

[0025] Optionally, in the multifunctional test tube holder, the first groove is provided with a plurality of first connecting holes; the first slider is provided with a first mounting hole; an assembly passes through the first connecting hole and is connected to the first mounting hole; and / or, the second groove is provided with a plurality of second connecting holes; the second slider is provided with a second mounting hole; an assembly passes through the second connecting hole and is connected to the second mounting hole.

[0026] Optionally, in the multifunctional test tube holder, the cross-sectional shape of the positioning groove is circular; the diameter of the positioning groove is smaller than the diameter of the test tube hole.

[0027] Optionally, in the multifunctional test tube holder, the first support base is hollow, forming a cavity; the inner sidewall of the cavity is provided with a third sliding groove; and the base is slidably disposed on the third sliding groove.

[0028] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0029] This invention discloses a multifunctional test tube holder, which uses a first support base and a second support base to fix and store various test tubes, centrifuge tubes and other containers. When a test tube heating experiment is required, the test tube is clamped by a clamping component, and the first slider is slid to drive the clamping component to rise and fall, accurately adjusting the distance between the experimental test tube and the heat source, ensuring that the test tube is heated evenly. There is no need to repeatedly move the test tube during the experiment, which solves the problem of the single function of existing test tube holders. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the main structure of the multifunctional test tube holder in the embodiments of this application;

[0032] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0034] Figure 4 This is a partial structural schematic diagram of the multifunctional test tube holder in the embodiments of this application.

[0035] Explanation of reference numerals in the attached drawings: 100, First support base; 110, Positioning groove; 200, Second support base; 210, Test tube hole; 300, Connecting plate; 310, First groove; 3101, First connecting hole; 311, First sliding groove; 320, Second groove; 3201, Second connecting hole; 321, Second sliding groove; 330, Third groove; 331, Fourth sliding groove; 410, Base; 420, First slider; 430, Clamping element; 431, Telescopic rod; 4311, First connecting rod; 4312, Second connecting rod; 4313, Elastic button; 4314, Female connector; 432, Elastic steel sheet; 4321, Male connector; 4322, Rubber pad; 4323, Fastening strip; 440, Second slider; 450, Support plate; 451, Circular through hole. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] like Figure 1 As shown in the figure, this application discloses a multifunctional test tube holder, including a first support base 100, a second support base 200, a connecting plate 300, and a test tube heating assembly; the connecting plate 300 includes a first surface and a second surface; the first support base 100 and the second support base 200 are arranged parallel to each other on the first surface, and the second support base 200 is located directly above the first support base 100; a plurality of test tube holes 210 are evenly opened on the second support base 200; the test tube holes 210 are coaxially arranged with the positioning groove 110; the test tube heating assembly is disposed on the second surface of the connecting plate 300; the test tube heating assembly includes a base 410, a first slider 420, and a clamping member 430; the first slider 420 is slidably disposed on the connecting plate 300; the clamping member 430 is inserted into the slider for clamping test tubes; the base 410 is disposed below the clamping member 430 for placing a heat source.

[0039] The first support base 100 and the second support base 200 are arranged parallel to each other on the connecting plate 300. The positioning groove 110 on the first support base 100 and the test tube hole 210 on the second support base 200 are arranged opposite each other. The test tube is passed through the test tube hole 210 and extends onto the first support base 100, so that the bottom of the test tube abuts against the positioning groove 110, and the test tube hole 210 is engaged with the body of the test tube to fix the test tube on the test tube rack. A test tube heating assembly is provided on the side of the connecting plate 300 away from the first support base 100 and the second support base 200. When conducting the test tube heating experiment, the test tubes arranged on the first support base 100 and the second support base 200 are placed on the test tube heating assembly. The test tubes are held by the clamping member 430, and the first slider 420 is slid to drive the clamping member 430 to rise and fall, thereby flexibly adjusting the distance between the test tube and the heat source according to the size of different test tubes to ensure that the test tubes are heated evenly. This design allows the holder to serve both as a container for holding test tubes and as a heater for the test tubes.

[0040] Specifically, in the chemical biology experiment teaching process, multiple test tubes are arranged on the first support 100 and the second support 200. When the test tube heating experiment begins, the instructor or student places the target test tube on the test tube heating assembly and clamps it with the clamping device 430. Then, the first slider 420 is slid to adjust the distance between the test tube and the heat source. With this design, when conducting the test tube heating reaction, the instructor or student only needs to move the test tube from one side of the connecting plate 300 to the other side to complete the experiment. It is not necessary to repeatedly transfer the test tube from the support to the heating device in a specific position, reducing the safety problem of test tubes slipping due to operational errors during the transfer process.

[0041] like Figure 1 and Figure 4 As shown, in this embodiment, the clamping member 430 includes a telescopic rod 431 and an elastic steel sheet 432. The telescopic rod 431 is hinged to the first slider 420. The end of the telescopic rod 431 facing away from the first slider 420 is provided with a female connector 4314. One end of the elastic steel sheet 432 is provided with a male connector 4321. The male connector 4321 is hinged to the female connector 4314 on the telescopic rod 431. The other end of the elastic steel sheet 432 is suspended. The elastic steel sheet 432 is used to wrap tightly around the test tube.

[0042] Specifically, one end of the telescopic rod 431 is hinged to the first slider 420. During the test tube heating test, the telescopic rod 431 is unfolded to clamp the test tube for testing; when the test is finished or the test tube heating test is not required, the telescopic rod 431 is folded and stored to reduce the space occupied by the test tube holder. In one embodiment, a 90-degree folding self-locking hinge or a stainless steel hinge with a torsion spring is selected to ensure the smooth folding of the telescopic rod 431.

[0043] The telescopic rod 431 includes a first connecting rod 4311 and a second connecting rod 4312. One end of the first connecting rod 4311 is hinged to the first slider 420, and the other end is provided with an assembly hole. The first connecting rod 4311 is hollow, forming a connecting channel. The second connecting rod 4312 is telescopically inserted into the first connecting rod 4311. Several fittings are evenly spaced on the second connecting rod 4312. Fittings at different positions on the second connecting rod 4312 are selected to engage with the assembly holes on the first connecting rod 4311 to adjust the distance by which the second connecting rod 4312 extends beyond the first connecting rod 4311.

[0044] like Figure 4 As shown, in use, the assembly consists of elastic buttons 4313, and the second connecting rod 4312 is provided with two, three, four, or more elastic buttons 4313. In one embodiment, the second connecting rod 4312 is provided with four elastic buttons 4313, which are spaced apart along the length of the second connecting rod 4312. Pressing one of the elastic buttons 4313 pushes the second connecting rod 4312 into the connecting channel of the first connecting rod 4311 until the elastic button 4313 abuts against the mounting hole and pops out of the mounting hole to fix the second connecting rod 4312. In this way, by pressing the elastic buttons 4313 at different positions, the distance of the second connecting rod 4312 extending out of the connecting channel can be adjusted to adjust the relative position of the test tube and the heat source in the horizontal axis direction, ensuring that the test tube is heated evenly.

[0045] like Figure 4 As shown, in this embodiment, the elastic steel sheet 432 is connected to the second connecting rod 4312. In use, the end of the elastic steel sheet 432 connected to the second connecting rod 4312 is provided with a male connector 4321, and the end of the second support rod opposite to the first support rod is provided with a female connector 4314. The male connector 4321 and the female connector 4314 are hinged together, allowing the elastic steel sheet 432 to rotate in different directions. Specifically, the cross-sectional shape of both the female connector 4314 and the male connector 4321 is hemispherical; the diameter of the female connector 4314 is greater than or equal to the diameter of the male connector 4321. In one embodiment, the second connecting rod 4312 and the elastic steel sheet 432 are hinged using a spherical joint bearing, allowing the elastic steel sheet 432 to rotate in any direction. Thus, when the elastic steel sheet 432 clamps the test tube, the direction and tilt angle of the test tube opening can be flexibly adjusted according to the test tube size, meeting the requirements of the test tube heating experiment and ensuring the safety of the test tube heating experiment.

[0046] In this embodiment, the elastic steel sheet 432 is a pre-formed, rolled shape shape of shape memory metal or elastic steel sheet 432. Its working principle is similar to that of a snap ring elastic steel sheet or a rolled shape memory steel sheet. When the test tube comes into contact with the elastic steel sheet 432, it will automatically roll up and adhere tightly to the test tube body due to its own elastic deformation to hold the test tube. When the experiment is over, the experimenter can unfold the elastic steel sheet 432 to remove the test tube. In this way, the test tube heating assembly can be used for test tubes of different diameters, improving the practicality of the test tube heating assembly.

[0047] In this embodiment, the elastic steel sheet 432 can be fully extended and straightened. The test tube is placed in the center of the elastic steel sheet 432, and then the elastic steel sheet 432 is slightly squeezed and pushed by hand. At this time, the elastic steel sheet 432 deforms under force and simultaneously contracts inward, thus wrapping tightly around the test tube and securely encasing it. The length of the elastic steel sheet 432 is much larger than the circumference of the test tube. The number of turns of the elastic steel sheet 432 varies depending on the diameter of the branch tube, ensuring that the elastic steel sheet 432 can wrap around the test tube multiple times, preventing the test tube from slipping during the experiment and ensuring the stability of the test tube. By clamping the test tube with the elastic steel sheet 432, the stability of the test tube is ensured, but the test tube will not break due to excessive compression.

[0048] like Figure 4 As shown, in one embodiment, a rubber pad 4322 is provided on the side of the elastic steel sheet 432 that contacts the test tube; a first heat insulation pad (not shown in the figures) is provided on the side of the elastic steel sheet 432 that faces away from the test tube. When the elastic steel sheet 432 is wrapped tightly around the test tube, the rubber pad 4322 increases the friction between the elastic steel sheet 432 and the test tube, preventing the test tube from slipping during heating; furthermore, the addition of the first heat insulation pad on the outside of the elastic steel sheet 432 can block the heat loss from the test tube during heating, achieving efficient heat insulation and ensuring the safety of the experimental process.

[0049] In this embodiment, the elastic steel sheet 432 is also fixedly provided with a fastening strip 4323. The fastening strip 4323 is provided on the end of the elastic steel sheet 432 that is connected to the second connecting rod 4312, which increases the supporting force of the elastic steel sheet 432 and ensures that the end of the elastic steel sheet 432 connected to the second connecting rod 4312 has sufficient rigidity and is not easily deformed, thus ensuring the stability of the connection. In this way, when the male connector 4321 rotates on the female connector 4314, it can effectively drive the elastic steel sheet 432 to rotate synchronously.

[0050] like Figure 2 and Figure 3As shown, in another embodiment of the present invention, the connecting plate 300 is recessed inward on the side away from the second support base 200 to form a first groove 310; a first sliding groove 311 is provided on the inner sidewall of the first groove 310; the first slider 420 is inserted into the first sliding groove 311 and slides along the first sliding groove 311.

[0051] Specifically, the connecting plate 300 has an inward groove on the side opposite to the second support 200, forming a first groove 310. The inner sidewall of the first groove 310 has a first sliding groove 311 with a cross-sectional shape of "T". The side of the first slider 420 protrudes outward, and its cross-sectional shape corresponds to the cross-sectional shape of the first sliding groove 311. Thus, the two sides of the first slider 420 are respectively inserted into the first sliding groove 311. By sliding along the first groove, the first slider 420 can be raised and lowered, thereby driving the clamping member 430 to rise and fall, so as to drive the test tube to rise and fall and adjust the distance between the test tube and the heat source.

[0052] like Figure 2 and Figure 3 As shown, the connecting plate 300 is recessed inward on the side opposite to the first support base 100 to form a second groove 320; the second sliding groove 321 is located below the first groove 310; the second sliding groove 321 is provided on the inner sidewall of the second groove 320; the test tube heating assembly also includes a second slider 440 and a support plate 450; the second slider 440 is inserted into the second sliding groove 321 and slides along the second sliding groove 321; the support plate 450 is hinged to the second slider 440; a circular through hole 451 is provided at the center of the support plate 450; the support plate 450 is used to place a beaker.

[0053] Similarly, the cross-sectional shape of the second slide 321 is "T" shaped; the side of the second slider 440 protrudes outward, and its cross-sectional shape corresponds to the cross-sectional shape of the second slide 321, so that the two sides of the second slider 440 are respectively inserted into the second slider 440; the second slider 440 is hinged to the support plate 450, which is located below the clamping member 430 and is used to place the beaker. In this way, the test tube can be heated by water bath to flexibly adapt to the heating requirements of different experiments.

[0054] like Figure 1As shown, in this embodiment, a circular perforation 451 is provided at the center of the support plate 450, and a second heat insulation pad is also fitted on the outer surface of the support plate 450. Therefore, when the beaker is placed on the support plate 450, the heat source located under the support plate 450 heats the beaker through the circular perforation 451. The second heat insulation pad prevents heat loss from the beaker during heating, achieving efficient heat insulation and ensuring the safety of the experimental process. In one embodiment, an asbestos mesh can be placed between the support plate 450 and the beaker to ensure uniform heating of the beaker.

[0055] In this embodiment, the support plate 450 is hinged to the second slider 440. The hinge is either a 90-degree folding self-locking hinge or a stainless steel hinge with a torsion spring. When water bath heating of the test tube is not required via a beaker, the support plate 450 is folded upwards, allowing the heat source to directly contact the test tube. This also reduces the space occupied by the test tube holder when it is not in use. When water bath heating is required, the support plate 450 is fully unfolded, making it perpendicular to the connecting plate 300, and then the beaker is placed on the support plate 450. This provides more diverse heating methods for the test tube and improves the practicality of the test tube holder's heating function.

[0056] like Figure 2 and Figure 3 As shown, in this embodiment, the first groove 310 is provided with a plurality of first connecting holes 3101; the first slider 420 is provided with a first mounting hole; an assembly is passed through the first connecting hole 3101 and connected to the first mounting hole; and / or, the second groove 320 is provided with a plurality of second connecting holes 3201; the second slider 440 is provided with a second mounting hole; an assembly is passed through the second connecting hole 3201 and connected to the second mounting hole.

[0057] Specifically, the first groove 310 has multiple first connecting holes 3101 spaced apart on both sides, and the first slider 420 has a first mounting hole. When the experimenter needs to raise or lower the test tube, one of the first connecting holes 3101 is selected, and the first slider 420 is slid so that the first mounting hole on the first slider 420 is aligned with the first connecting hole 3101. Then, an assembly is passed through the first connecting hole 3101 and inserted into the first mounting hole to fix the first slider 420, ensuring the stability of the test tube during the experiment. By selecting different positions of the first connecting holes 3101, the first slider 420 can be slid and fixed to different heights, thereby realizing the raising and lowering of the test tube.

[0058] Similarly, multiple second connecting holes 3201 are spaced apart on both sides of the second groove 320, and a second mounting hole is provided on the second slider 440. When the experimenter needs to raise or lower the beaker, one of the second connecting holes 3201 is selected, and the second slider 440 is slid so that the second mounting hole on the second slider 440 is aligned with the second connecting hole 3201. Then, an assembly is passed through the second connecting hole 3201 and inserted into the second mounting hole to fix the second slider 440, ensuring the stability of the support plate 450 during the experiment. By selecting different positions of the second connecting holes 3201, the second slider 440 can be slid and fixed to different heights, thereby realizing the raising and lowering of the beaker. Thus, by selecting different positions of the first connecting holes 3101 and the second connecting holes 3201, the distance between the clamping member 430 and the support plate 450 can be adjusted, thereby flexibly adjusting the distance between the experimental test tube and the beaker, as well as the distance between the beaker and the heat source, ensuring the safety and smoothness of the experiment.

[0059] In this embodiment, both the first connecting hole 3101 and the second connecting hole 3201 are screw holes, as are the first mounting hole and the second mounting hole. The first slider 420 is fixed by bolts passing through the first connecting hole 3101 and the first mounting hole. Simultaneously, the second slider 440 is fixed by additional bolts passing through the second connecting hole 3201 and the second mounting hole. In one embodiment, both the first connecting hole 3101 and the second connecting hole 3201 are smooth through holes. A cylindrical tenon is inserted into the first connecting hole 3101 and extends into the first mounting hole to fix the first slider 420. Similarly, another cylindrical tenon can be inserted into the second connecting hole 3201 and extends into the second mounting hole to fix the second slider 440.

[0060] When it is necessary to adjust the position of the first slider 420 and the second slider 440, select the first connecting hole 3101 and the second connecting hole 3201 at other positions respectively, so that the first connecting hole 3101 and the second connecting hole 3201 are aligned with the first assembly hole and the second assembly hole respectively, and then re-insert and fix them by the assembly parts.

[0061] In one embodiment, the test tube holder disclosed in this invention has the distance between the support plate 450 and the heat source pre-set at the factory. The distance between the test tube and the beaker is adjusted by sliding the first slider 420. Alternatively, the position of the clamping member 430 can be set at the factory, and the distance between the beaker and the heat source, and between the beaker and the test tube, can be adjusted by sliding the second slider 440. In summary, by adjusting the positional relationship between the first slider 420 and the second slider 440, the positional relationships between the beaker and the heat source, the beaker and the test tube, and the test tube and the heat source are adjusted to ensure uniform heating of the test tube.

[0062] In another embodiment of the present invention, the first support 100 is hollow, forming a cavity; the inner wall of the cavity is provided with a sliding groove; the base 410 is slidably disposed on the sliding groove. Specifically, the first support 100 is hollow, forming a cavity, the opening of the cavity is open to one side facing the base 410, the inner wall of the cavity is provided with a third sliding groove, the base 410 is engaged with the third sliding groove, and can slide along the third sliding groove. When no test is required, the base 410 is slidably stored in the cavity, and the telescopic rod 431 and the support plate 450 are also bent and stored, thus reducing the space occupied by the test tube holder.

[0063] In one embodiment, a third groove 330 is formed by an inward recess on the side of the connecting plate 300 near the second support 200. A fourth sliding groove 331 is provided on the inner wall of the third groove 330. The two sides of the second support plate 450 are engaged with the fourth sliding groove 331 and can be slidably disposed on the fourth sliding groove 331. The test tube holes 210 of the second support 200 have different diameters, allowing test tubes of different diameters to be placed. Thus, when the lengths of the test tubes are inconsistent, the second support 200 can be slid to reduce or increase the distance between the second support 200 and the first support 100, ensuring the stable arrangement of test tubes of different lengths. Specifically, when it is necessary to arrange test tubes of different lengths simultaneously, the distance between the second support 200 and the first support 100 is reduced to ensure that the second support 200 can abut against the mouth of the shorter test tube. In this way, both long and short test tubes are constrained by the positioning groove 110 and the test tube holes 210, and can be stably placed on the test tube rack.

[0064] In this embodiment, the positioning groove 110 has a circular cross-sectional shape, and its diameter is smaller than that of the test tube hole 210. Simultaneously, the diameter of the positioning groove 110 is also smaller than the diameter of the test tube. This design ensures that when test tubes of different sizes are placed, the positioning groove 110 contacts the bottom of the test tube, forming a support point. With the assistance of the test tube hole 210, the test tube remains upright. In one embodiment, the diameter of the test tube hole 210 varies to flexibly accommodate test tubes of different diameters.

[0065] In one embodiment of the present invention, when directly heating the test tube, the target test tube is taken from the first support 100 and the second support 200, and the base 410 slides out of the cavity to place the heat source. The heat source can be a dry alcohol cotton ball, a laboratory alcohol lamp, or other suitable heat source; then, the telescopic rod 431 is unfolded, the test tube is clamped with the elastic steel sheet 432, and the first connecting rod 4311 and the second connecting rod 4312 are adjusted. Finally, the elastic steel sheet 432 is rotated so that the mouth of the test tube is tilted and the bottom of the test tube is directly above the heat source, and the heat source heats the test tube.

[0066] In this embodiment, different liquid substances are heated, and the elastic steel plate 432 is rotated to change the tilt angle and orientation of the test tube. For example, when heating the liquid in the test tube, the elastic steel plate 432 is rotated to tilt the test tube at 45 degrees with the mouth facing upwards; when heating the solid in the test tube, the elastic steel plate 432 is rotated to tilt the test tube downwards. Thus, by flexibly rotating the elastic steel plate 432 to adjust the orientation of the test tube mouth, it can be flexibly adapted to different experimental requirements.

[0067] In one embodiment, when water bath heating is required, the target test tube is taken from the first support 100 and the second support 200, and the base 410 slides out of the cavity to place the heat source. Then, the support plate 450 and the telescopic rod 431 are used to adjust the distance between the support plate 450 and the heat source, and between the heat source and the test tube, to ensure the safety of the experimental process.

[0068] In summary, this invention discloses a multifunctional test tube holder, comprising: a first support base, a second support base, a connecting plate, and a test tube heating assembly; the connecting plate includes a first surface and a second surface; the first and second support bases are arranged parallel to each other on the first surface; the first support base has a plurality of positioning grooves; the second support base has a plurality of test tube holes; the test tube holes are coaxially arranged with the positioning grooves; the test tube heating assembly is disposed on the second surface; wherein the test tube heating assembly includes a base, a first slider, and a clamping member; the base is used to place a heat source; the first slider is slidably disposed on the connecting plate; one end of the clamping member is inserted into the slider, and the other end extends above the base; the clamping member is used to clamp the test tube. During the test tube heating experiment, the clamping member is used to hold the test tube, and the first slider is slidable to move the clamping member up and down, precisely adjusting the distance between the experimental test tube and the heat source to ensure uniform heating of the test tube. Therefore, there is no need to repeatedly move the test tube during the experiment, solving the problem of the single function of existing test tube holders.

[0069] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0070] It should be noted that this invention uses a multifunctional test tube holder as an example to introduce the specific structure and working principle of the invention, but the application of this invention is not limited to the multifunctional test tube holder, and can also be applied to the production and use of other similar workpieces.

[0071] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional test tube holder, characterized in that, include: A connecting plate, the connecting plate including a first surface and a second surface; A first support base and a second support base are arranged parallel to each other on the first surface; the first support base is provided with a plurality of positioning grooves; the second support base is provided with a plurality of test tube holes; the test tube holes are coaxially arranged with the positioning grooves. A test tube heating assembly is disposed on the second surface; The test tube heating assembly includes: The base is used to hold the heat source; The first slider is slidably mounted on the connecting plate; A clamping element, one end of which is inserted into the first slider and the other end of which extends above the base; the clamping element is used to hold the test tube. The clamping element includes: A telescopic rod is hinged to the first slider; the end of the telescopic rod opposite to the first slider is provided with a female connector; An elastic steel sheet has a male connector at one end; the male connector is hinged to the female connector on the telescopic rod; the other end of the elastic steel sheet is suspended; the elastic steel sheet is used to wrap around the test tube; the cross-sectional shape of both the female connector and the male connector is hemispherical; the diameter of the female connector is greater than or equal to the diameter of the male connector. The connecting plate is recessed inward on the side opposite to the second support base to form a first groove; a first sliding groove is provided on the inner side wall of the first groove; the first slider is inserted into the first sliding groove and slides along the first sliding groove; The connecting plate is recessed inward on the side opposite to the first support base to form a second groove; the second groove is located below the first groove; a second sliding groove is formed on the inner sidewall of the second groove; the test tube heating assembly further includes: The second slider is inserted into the second slide groove and slides along the second slide groove; A support plate is hinged to the second slider; a circular through hole is provided at the center of the support plate; the support plate is used to place a beaker; the first groove has several first connecting holes; the first slider has a first mounting hole; an assembly passes through the first connecting hole and connects to the first mounting hole; and / or... The second groove has a plurality of second connecting holes; the second slider has a second mounting hole; a fitting passes through the second connecting hole and connects with the second mounting hole.

2. The multifunctional test tube holder according to claim 1, characterized in that, A rubber pad is provided on the side of the elastic steel sheet that contacts the test tube; a first heat insulation pad is provided on the side of the elastic steel sheet that is away from the test tube.

3. The multifunctional test tube holder according to claim 1, characterized in that, A second heat insulation pad is also fitted on the outer surface of the support plate.

4. The multifunctional test tube holder according to claim 1, characterized in that, The positioning groove has a circular cross-sectional shape; the diameter of the positioning groove is smaller than the diameter of the test tube hole.

5. The multifunctional test tube holder according to claim 1, characterized in that, The first support is hollow, forming a cavity; the inner wall of the cavity is provided with a third sliding groove; the base is slidably disposed on the third sliding groove.

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