Experimental test tube placing rack capable of changing angle as required

Abstract

The utility model discloses an on-demand variable angle type experiment test tube placing rack, which relates to the technical field of experiment equipment, and comprises a base for placing an alcohol lamp and a fixing sleeve for fixing a test tube, and further comprises a vertical rod fixedly arranged on the base, a connecting seat is arranged on the surface of the fixing sleeve through a rotating shaft, and the vertical rod is fixedly arranged on the base. The fixing sleeve rotates and inclines through the rotating shaft, and the connecting base is slidably connected to the surface of the vertical rod; the fixing assembly is arranged on the side face of the connecting base, connected with the rotating shaft in a clamped mode and used for fixing the angle of the fixing sleeve. Through the arrangement of the connecting seat and the rotating shaft, the chemical experiment rack has the advantages that the fixing sleeve can be rotated, so that the inclination angle of a test tube can be adjusted to meet experiment requirements, and a chemical experiment is more convenient, so that the problems that after the test tube is fixed on the placing rack, the fixing sleeve is fixedly mounted, the angle of the test tube is inconvenient to incline, and the experiment efficiency is high are solved. And inconvenience is brought to chemical experiments.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, and particularly relates to a variable-angle experimental test tube rack as needed. Background Art

[0002] Test tubes are commonly used instruments in chemical laboratories, serving as reaction vessels for small amounts of reagents, and are used at room temperature or when heated. During experiments, various reagents often need to be heated. When heating, test tubes are often supported and placed on a rack.

[0003] For example, the patent with the publication number CN108525718A discloses a test tube rack convenient for experiments, which can conveniently fix test tubes according to their lengths, and solves the problem that the original test tube rack is inconvenient to adjust and fix test tubes of different specifications.

[0004] The test tube is fixed in a fixing sleeve on the rack for heating. For different reagents, in order to ensure more uniform heating, the test tube needs to be tilted. Currently, after the test tube is fixed to the rack, the fixing sleeve is fixedly installed, so it is inconvenient to tilt the angle of the test tube, which causes inconvenience to chemical experiments. Content of the Utility Model

[0005] The utility model provides a variable-angle experimental test tube rack as needed, which has the advantage of being able to rotate the fixing sleeve, thereby being able to adjust the tilt angle of the test tube to meet the experimental requirements and making chemical experiments more convenient, so as to solve the problem that after the test tube is fixed to the rack, the fixing sleeve is fixedly installed, so it is inconvenient to tilt the angle of the test tube, which causes inconvenience to chemical experiments.

[0006] To achieve the purpose of being able to rotate the fixing sleeve, thereby being able to adjust the tilt angle of the test tube to meet the experimental requirements and making chemical experiments more convenient, the utility model provides the following technical solution: A variable-angle experimental test tube rack as needed, including a base for placing an alcohol lamp and a fixing sleeve for fixing a test tube, further including: a vertical rod fixedly arranged on the base, a connecting seat is arranged on the surface of the fixing sleeve through a rotating shaft, the fixing sleeve rotates and tilts through the rotating shaft, and the connecting seat is slidably connected to the surface of the vertical rod; a fixing component arranged on the side of the connecting seat, the fixing component is clamped with the rotating shaft and is used for fixing the angle of the fixing sleeve.

[0007] As a preferred technical solution of the utility model, the fixing component includes a slide rail, a clamping plate and a limiting component. The slide rail is fixedly arranged on the side of the connecting seat, the clamping plate is movably arranged on the side of the connecting seat, the clamping plate is arranged inside the slide rail, one side of the clamping plate can be clamped with the rotating shaft, and the limiting component is arranged on the surface of the connecting seat and is used for limiting the clamping plate.

[0008] As a preferred technical solution of the utility model, one end of the rotating shaft is fixed to the side of the fixed sleeve, the other end of the rotating shaft is fixedly sleeved with a gear, an arc is arranged on one side of the clamping plate, and teeth are fixedly arranged on the arc surface of one side of the clamping plate, and the teeth are meshed with the gear for fixing the rotating shaft.

[0009] As a preferred technical solution of the utility model, the limiting component includes an elastic plate and a plug-in portion, a groove is provided on the side of the connecting seat, the elastic plate is fixedly connected to the inner wall of the groove, the elastic plate has elasticity that can be deformed, the plug-in portion is fixedly set at one end of the elastic plate, the plug-in portion is set in an arc shape, and a slot that can be plugged and adapted with the plug-in portion is provided at the bottom of the card plate.

[0010] As a preferred technical solution of the utility model, a reinforcing rod is fixedly provided on a side of the elastic plate away from the plug-in portion, the reinforcing rod has deformable elasticity, and the reinforcing rod is used to increase the elasticity of the elastic plate.

[0011] As a preferred technical solution of the utility model, a toggle plate is fixedly provided on the surface of the clamping plate, and a plurality of anti-slip protrusions are fixedly provided on the surface of the toggle plate.

[0012] As a preferred technical solution of the utility model, an adjustment sleeve is slidably sleeved on the surface of the vertical pole, the connecting seat is fixedly connected to the inner wall of the adjustment sleeve through a connecting rod, and a fastening component that can be fixed to the vertical pole is provided on the surface of the adjustment sleeve.

[0013] As a preferred technical solution of the utility model, the fastening assembly includes a cam portion and a pull plate, the cam portion is connected to the surface of the adjustment sleeve through a hinge shaft, the pull plate is integrally formed with one side of the cam portion, and the cam portion fits tightly with the surface of the vertical rod.

[0014] Compared with the prior art, the utility model provides an on-demand angle-variable experimental test tube placement rack, which has the following beneficial effects:

[0015] 1. The experimental test tube placement rack, by providing a connecting seat and a rotating shaft, drives the fixed sleeve to rotate the rotating shaft in the connecting seat, and the rotating shaft drives the gear to rotate at the same time, and the fixed sleeve drives the internal test tube to tilt the angle, and then the rotating shaft is clamped by a fixing component to fix the angle of the test tube, so that the fixed sleeve can be rotated, and the tilt angle of the test tube can be adjusted to meet the experimental needs, making chemical experiments more convenient. It solves the problem that after the test tube is fixed to the placement rack, the fixed sleeve is fixedly installed, which makes it inconvenient to tilt the angle of the test tube, causing inconvenience to the chemical experiment.

[0016] 2. For this experimental test tube rack, by setting the fixing component, the fixing sleeve drives the rotating shaft to rotate. The rotating shaft will simultaneously drive the gear to rotate. The fixing sleeve will drive the test tube inside to tilt at an angle. Then, the clamping plate is pushed, causing the clamping plate to slide along the inner wall of the sliding rail, so that the clamping plate drives the teeth to engage and plug with the gear, locking the rotating shaft, achieving the advantage of facilitating the fixation of the tilting angle for test tube cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of a part of the connecting seat of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of the fixing component of the present utility model;

[0020] Figure 4 It is a schematic structural diagram of a part of the clamping plate of the present utility model;

[0021] Figure 5 It is a sectional view of the structure of the connecting seat of the present utility model;

[0022] Figure 6 It is a sectional view of the structure of the adjusting sleeve of the present utility model;

[0023] Figure 7 For the present utility model Figure 6 Enlarged view of the structure at A in the figure.

[0024] In the figure: 1. Base; 2. Fixing sleeve; 3. Vertical rod; 4. Rotating shaft; 5. Connecting seat; 6. Sliding rail; 7. Clamping plate; 8. Gear; 9. Teeth; 10. Elastic plate; 11. Insertion part; 12. Reinforcing rod; 13. Pushing plate; 14. Adjusting sleeve; 15. Cam part; 16. Pulling plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-7, the present utility model discloses a variable-angle experimental test tube rack as needed, which includes a base 1 for placing an alcohol lamp and a fixing sleeve 2 for fixing test tubes, and further includes: a vertical rod 3 fixedly arranged on the base 1, a connecting seat 5 is arranged on the surface of the fixing sleeve 2 through a rotating shaft 4, the fixing sleeve 2 rotates and inclines through the rotating shaft 4, and the connecting seat 5 is slidably connected to the surface of the vertical rod 3; a fixing component arranged on the side of the connecting seat 5, the fixing component is clamped with the rotating shaft 4 and is used for fixing the angle of the fixing sleeve 2.

[0027] Specifically, the fixing component includes a slide rail 6, a clamping plate 7 and a limiting component. The slide rail 6 is fixedly arranged on the side of the connecting seat 5, the clamping plate 7 is movably arranged on the side of the connecting seat 5, the clamping plate 7 is arranged inside the slide rail 6, one side of the clamping plate 7 can be clamped with the rotating shaft 4, and the limiting component is arranged on the surface of the connecting seat 5 and is used for limiting the clamping plate 7. One end of the rotating shaft 4 is fixed to the side of the fixing sleeve 2, and a gear 8 is fixedly sleeved on the other end of the rotating shaft 4. One side of the clamping plate 7 is arc-shaped, and a tooth 9 is fixedly arranged on the arc surface of one side of the clamping plate 7. The tooth 9 meshes with the gear 8 and is used for fixing the rotating shaft 4.

[0028] In this embodiment, the fixing sleeve 2 drives the rotating shaft 4 to rotate, and the rotating shaft 4 will drive the gear 8 to rotate at the same time. The fixing sleeve 2 will drive the test tubes inside to incline at an angle. Then, the clamping plate 7 is pushed to make the clamping plate 7 slide along the inner side wall of the slide rail 6, so that the clamping plate 7 drives the tooth 9 to be meshed and inserted with the gear 8, locking the rotating shaft 4, thereby fixing the angle of the test tubes.

[0029] Specifically, the limiting component includes an elastic plate 10 and a plugging part 11. A groove is opened on the side of the connecting seat 5, the elastic plate 10 is fixedly connected to the inner side wall of the groove, the elastic plate 10 has elasticity that can be deformed, the plugging part 11 is fixedly arranged at one end of the elastic plate 10, the plugging part 11 is arc-shaped, and a slot that can be plugged and adapted to the plugging part 11 is opened at the bottom of the clamping plate 7.

[0030] In this embodiment, when the tooth 9 meshes with the gear 8, the clamping plate 7 will drive the slot to be in the position of the plugging part 11. Then, the elastic plate 10 elastically returns to drive the plugging part 11 to be plugged with the slot, thereby limiting the clamping plate 7, which can avoid the tooth 9 from disengaging from the gear 8 and clamping the rotating shaft 4 more firmly.

[0031] Specifically, a reinforcing rod 12 is fixedly arranged on the side of the elastic plate 10 away from the plugging part 11. The reinforcing rod 12 has elasticity that can be deformed, and the reinforcing rod 12 is used to increase the elasticity of the elastic plate 10.

[0032] In this embodiment, when the elastic plate 10 elastically deforms, it will drive the reinforcing rod 12 to deform together. Through the reinforcing rod 12, the elasticity of the elastic plate 10 can be increased, making the elastic plate 10 not easily deformed, making the plugging part 11 and the slot plugged more firmly, and thus limiting the clamping plate 7 more firmly.

[0033] Specifically, a toggle plate 13 is fixedly provided on the surface of the clamping plate 7 , and a plurality of anti-slip protrusions are fixedly provided on the surface of the toggle plate 13 .

[0034] In this embodiment, a finger is brought into contact with the protective protrusion, and then the toggle plate 13 is pulled, and the card plate 7 is toggled by the toggle plate 13, thereby facilitating the sliding of the card plate 7.

[0035] Specifically, an adjustment sleeve 14 is slidably sleeved on the surface of the upright pole 3, and the connecting seat 5 is fixedly connected to the inner wall of the adjustment sleeve 14 through a connecting rod. The surface of the adjustment sleeve 14 is provided with a fastening component that can be fixed to the upright pole 3, and the fastening component includes a cam portion 15 and a pull plate 16. The cam portion 15 is connected to the surface of the adjustment sleeve 14 through a hinge shaft, and the pull plate 16 is integrally formed with one side of the cam portion 15, and the cam portion 15 fits tightly against the surface of the upright pole 3.

[0036] In the present embodiment, when the distance between the test tube and the alcohol lamp needs to be adjusted according to the test tubes of different lengths, hold the pull plate 16, and then pull the pull plate 16 upward, so that the pull plate 16 drives the cam portion 15 to rotate around the hinge axis, so that the cam portion 15 is disengaged from the vertical rod 3, thereby unlocking the adjustment sleeve 14, and then the adjustment sleeve 14 is slid along the surface of the vertical rod 3, and the adjustment sleeve 14 will drive the connecting seat 5 to move through the connecting rod, and the connecting seat 5 will drive the test tube to move through the fixed sleeve 2, so as to adjust the test tube, and then the cam portion 15 is reversed by the pull plate 16, so that the cam portion 15 squeezes the surface of the vertical rod 3, and then fits tightly with the vertical rod 3, thereby fixing the adjustment sleeve 14.

[0037] The working principle and use process of the utility model are as follows: when in use, the alcohol lamp is placed on the surface of the base 1, and then the test tube is inserted into the fixing sleeve 2, and the fastening bolts on the fixing sleeve 2 are screwed to squeeze the surface of the test tube with the fastening bolts, and the test tube is fixed so that the test tube is fixed on the top of the alcohol lamp, and the reagent in the test tube is heated. When the inclination angle of the test tube needs to be adjusted, the card plate 7 is toggled by the toggle plate 13 to make the card plate 7 slide along the inner wall of the slide rail 6, and at the same time, the card plate 7 squeezes the surface of the plug-in part 11 through the slot on the surface, and the plug-in part 11 drives the elastic plate 10 to deform elastically, and then the plug-in part 11 will be separated from the slot, and the limit of the card plate 7 will be cancelled, and then the card plate 7 will drive one side The teeth 9 are disengaged from the gear 8, thereby canceling the limit on the rotating shaft 4. Then, the fixed sleeve 2 drives the rotating shaft 4 to rotate, and the rotating shaft 4 will drive the gear 8 to rotate at the same time. The fixed sleeve 2 will drive the internal test tube angle to tilt, so that the heating is more uniform. Then, the card plate 7 is pushed back to make the card plate 7 slide along the inner wall of the slide rail 6, so that the card plate 7 drives the teeth 9 to engage and plug with the gear 8, and locks the rotating shaft 4, thereby fixing the test tube angle. When the teeth 9 are engaged with the gear 8, the card plate 7 will drive the slot to the position of the plug-in part 11, and then the elastic plate 10 elastically resets to drive the plug-in part 11 to plug with the slot, thereby limiting the card plate 7, which can prevent the teeth 9 from disengaging from the gear 8 and make the rotating shaft 4 more firmly connected.

[0038] In summary, the experimental test tube placement rack, by providing a connecting seat 5 and a rotating shaft 4, can rotate the fixed sleeve 2, so that the inclination angle of the test tube can be adjusted to meet the experimental needs, making chemical experiments more convenient. It solves the problem that after the test tube is fixed to the placement rack, the fixed sleeve 2 is fixedly installed, making it inconvenient to tilt the angle of the test tube, causing inconvenience to the chemical experiment.

[0039] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An on-demand variable angle experimental test tube placement rack, comprising a base (1) for placing an alcohol lamp and a fixing sleeve (2) for fixing the test tube, characterized in that: Also includes: A vertical pole (3) is fixedly arranged on the base (1); a connecting seat (5) is arranged on the surface of the fixing sleeve (2) via a rotating shaft (4); the fixing sleeve (2) is rotated and tilted via the rotating shaft (4); and the connecting seat (5) is slidably connected to the surface of the vertical pole (3); A fixing component is arranged on the side of the connecting seat (5), and the fixing component is clamped with the rotating shaft (4) and is used to fix the angle of the fixing sleeve (2).

2. The on-demand angle-variable experimental test tube placement rack according to claim 1, characterized in that: The fixing assembly comprises a slide rail (6), a clamping plate (7) and a limiting component, wherein the slide rail (6) is fixedly arranged on a side of the connecting seat (5), the clamping plate (7) is movably arranged on the side of the connecting seat (5), the clamping plate (7) is arranged inside the slide rail (6), one side of the clamping plate (7) can be clamped with the rotating shaft (4), and the limiting component is arranged on the surface of the connecting seat (5) and is used to limit the clamping plate (7).

3. The on-demand angle-variable experimental test tube placement rack according to claim 2, characterized in that: One end of the rotating shaft (4) is fixed to the side surface of the fixing sleeve (2), and the other end of the rotating shaft (4) is fixedly sleeved with a gear (8). An arc is arranged on one side of the clamping plate (7), and teeth (9) are fixedly arranged on the arc surface of one side of the clamping plate (7). The teeth (9) mesh with the gear (8) and are used to fix the rotating shaft (4).

4. The on-demand angle-variable experimental test tube placement rack according to claim 2, characterized in that: The limiting component comprises an elastic plate (10) and an inserting portion (11); a groove is provided on a side surface of the connecting seat (5); the elastic plate (10) is fixedly connected to an inner side wall of the groove; the elastic plate (10) has elasticity capable of deformation; the inserting portion (11) is fixedly arranged at one end of the elastic plate (10); the inserting portion (11) is arranged in an arc shape; and a slot which can be plugged and matched with the inserting portion (11) is provided at the bottom of the clamping plate (7).

5. The on-demand angle-variable experimental test tube placement rack according to claim 4, characterized in that: A reinforcing rod (12) is fixedly provided on a surface of the elastic plate (10) away from the plug-in portion (11); the reinforcing rod (12) has elasticity capable of deformation, and is used to increase the elasticity of the elastic plate (10).

6. The on-demand angle-variable experimental test tube placement rack according to claim 2, characterized in that: A toggle plate (13) is fixedly provided on the surface of the clamping plate (7), and a plurality of anti-slip protrusions are fixedly provided on the surface of the toggle plate (13).

7. The on-demand angle-variable experimental test tube placement rack according to claim 1, characterized in that: An adjustment sleeve (14) is slidably sleeved on the surface of the vertical pole (3), the connection seat (5) is fixedly connected to the inner wall of the adjustment sleeve (14) via a connection rod, and a fastening component that can be fixed to the vertical pole (3) is provided on the surface of the adjustment sleeve (14).

8. The on-demand angle-variable experimental test tube placement rack according to claim 7, characterized in that: The fastening assembly comprises a cam portion (15) and a pull plate (16); the cam portion (15) is connected to the surface of the adjustment sleeve (14) via a hinge shaft; the pull plate (16) is integrally formed with one side of the cam portion (15); and the cam portion (15) is tightly fitted to the surface of the upright pole (3).

Images