Burette rack convenient to adjust

Abstract

The burette rack convenient to adjust comprises a base and a butterfly clamp, a lifting mechanism used for adjusting the installation height of the butterfly clamp is arranged on the surface of the upper side of the base, and a horizontal adjusting mechanism used for adjusting the horizontal position of the butterfly clamp is arranged on the lifting mechanism. Compared with the prior art, the device has the advantages that the horizontal adjusting mechanism is arranged, the second threaded rod and the supporting cylinder generate threaded motion, the supporting cylinder drives the butterfly clamp to move, and then the horizontal position of the butterfly clamp is adjusted; by arranging the butterfly clamp, different experiment requirements and container sizes are met, the experiment flexibility is improved, in addition, by arranging the lifting mechanism, the height of the butterfly clamp can be adjusted so as to adapt to different container heights, and the experiment flexibility is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of burette holder technology, and specifically relates to an easily adjustable burette holder. Background Technology

[0002] A burette is a tool used for the precise addition of reagents, and a burette rack is a commonly used laboratory appliance used to support and fix the burette, ensuring its stability and correct position during titration. Titration is a common method in analytical chemistry, typically used to determine the concentration of substances in a solution. However, burette racks lacking horizontal adjustment for the butterfly clamp have significant drawbacks in laboratory titration. Firstly, because the butterfly clamp cannot be adjusted horizontally, the burette outlet position cannot be adjusted according to the container size. Furthermore, this may prevent the liquid from flowing smoothly into the container during titration, making it unsuitable for different experimental needs and container sizes, thus reducing the flexibility of the burette rack. Therefore, we aim to design an easily adjustable burette rack to solve this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an easily adjustable burette holder to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: an easily adjustable burette rack, comprising: a base and a butterfly clamp. The upper surface of the base is provided with a lifting mechanism for adjusting the installation height of the butterfly clamp. The lifting mechanism is provided with a horizontal adjustment mechanism for adjusting the horizontal position of the butterfly clamp. The horizontal adjustment mechanism is provided with the butterfly clamp. The horizontal adjustment mechanism includes a connecting plate, which is fixedly connected to the front side of the lifting mechanism. Support plates are fixedly connected to the left and right sides of the connecting plate. By setting the horizontal adjustment mechanism, the horizontal adjustment function allows the user to adjust the horizontal position of the burette as needed to adapt to different experimental requirements and container sizes, thereby improving the flexibility of the experiment. A threaded rod 2 passes through the inside of the support plate through a bearing. A support cylinder is screwed onto the outside of the threaded rod 2 through a thread. The butterfly clamp is fixedly connected to the left end of the support cylinder, and a driven bevel gear is fixedly connected to the right end of the threaded rod 2. By setting the threaded rod 2 and the support cylinder to generate threaded movement, the support cylinder drives the butterfly clamp to move.

[0005] A drive rod passes through the interior of the connecting plate via a bearing. A drive bevel gear is fixedly connected to the lower end of the drive rod. The drive bevel gear meshes with the driven bevel gear. By setting the drive rod, the drive rod drives the main bevel gear and the driven bevel gear to rotate.

[0006] In a preferred embodiment, one end of the telescopic rod is fixedly connected to the butterfly clip, and the other end of the telescopic rod is fixedly connected to the support plate. By setting the telescopic rod, the support cylinder is prevented from rotating simultaneously with the threaded rod.

[0007] In a preferred embodiment, the lifting mechanism includes a mounting cylinder, the lower end of which is fixedly mounted on the upper surface of the base.

[0008] The upper end of the mounting cylinder is screwed with a threaded rod, and a sliding sleeve is screwed onto the outer side of the threaded rod. The sliding sleeve is movably fitted inside the mounting cylinder. By setting a lifting mechanism, the installation height of the butterfly clamp can be adjusted to adjust the height of the burette, adapting to different experimental needs and container heights, and further improving the flexibility of the experiment.

[0009] In a preferred embodiment, the sliding sleeve has a lubrication groove inside, a sealing plug is screwed onto the upper surface of the sliding sleeve, and a through hole is provided on the inner side of the sliding sleeve for lubricating grease to contact the threaded rod. By adding lubricating grease to the surface of the threaded rod, the smoothness of the thread movement is improved.

[0010] In a preferred embodiment, the number of through holes is four, and the four through holes are evenly distributed circumferentially on the inner side of the sliding sleeve. By setting multiple through holes, the contact area between the lubricating grease and the threaded rod is increased.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by setting a horizontal adjustment mechanism, the threaded rod and the support cylinder generate a threaded movement, which causes the support cylinder to drive the butterfly clamp to move, thereby adjusting its horizontal position to adapt to different experimental needs and container sizes, and improving the flexibility of the experiment. In addition, by setting a lifting mechanism, the height of the butterfly clamp can be adjusted to adapt to different container heights, further improving the flexibility of the experiment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a right-side oblique view of the overall structure of a burette holder that is easy to adjust according to this utility model.

[0014] Figure 2 This is a partial three-dimensional view of an easily adjustable burette holder according to the present invention.

[0015] Figure 3 This utility model provides an easily adjustable burette holder. Figure 2 Enlarged view of part A of the structure.

[0016] Figure 4 This is a partial front view of the adjustable burette holder according to the present invention.

[0017] Figure 5 This utility model provides an easily adjustable burette holder. Figure 4 Enlarged view of section B in the diagram.

[0018] In the diagram, 1-base, 2-lifting mechanism, 3-level adjustment mechanism, 4-butterfly clip;

[0019] 21-Installation sleeve, 22-Threaded rod 1, 23-Sliding sleeve, 24-Lubrication groove, 25-Sealing plug, 26-Through hole;

[0020] 31-Connecting plate, 32-Supporting plate, 33-Threaded rod II, 34-Supporting cylinder, 35-Telescopic rod, 36-Driven bevel gear, 37-Drive rod, 38-Drive bevel gear. Detailed Implementation

[0021] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: an easily adjustable burette holder, including: a base 1 and a butterfly clip 4. The upper surface of the base 1 is provided with a lifting mechanism 2 for adjusting the installation height of the butterfly clip 4. The lifting mechanism 2 is provided with a horizontal adjustment mechanism 3 for adjusting the horizontal position of the butterfly clip 4. The horizontal adjustment mechanism 3 is provided with the butterfly clip 4.

[0023] The horizontal adjustment mechanism 3 includes a connecting plate 31, which is fixedly connected to the front of the lifting mechanism 2. Support plates 32 are fixedly connected to the left and right sides of the connecting plate 31. By setting the horizontal adjustment mechanism 3, the horizontal adjustment function allows the user to adjust the horizontal position of the burette as needed to adapt to different experimental requirements and container sizes, thereby improving the flexibility of the experiment. A threaded rod 33 passes through the inside of the support plate 32 through a bearing. A support cylinder 34 is screwed onto the outside of the threaded rod 33 through a thread. A butterfly clamp 4 is fixedly connected to the left end of the support cylinder 34, and a driven bevel gear 36 is fixedly connected to the right end of the threaded rod 33. By setting the threaded rod 33 and the support cylinder 34 to generate threaded movement, the support cylinder 34 drives the butterfly clamp 4 to move.

[0024] A drive rod 37 passes through the interior of the connecting plate 31 via a bearing. A drive bevel gear 38 is fixedly connected to the lower end of the drive rod 37. The drive bevel gear 38 meshes with the driven bevel gear 36. By setting the drive rod 37, the drive rod 37 drives the main bevel gear and the driven bevel gear 36 to rotate.

[0025] One end of the telescopic rod 35 is fixedly connected to the butterfly clip 4, and the other end of the telescopic rod 35 is fixedly connected to the support plate 32. By setting the telescopic rod 35, the support cylinder 34 is prevented from rotating simultaneously with the threaded rod 33.

[0026] The lifting mechanism 2 includes a mounting cylinder 21, the lower end of which is fixedly mounted on the upper surface of the base 1;

[0027] The upper end of the mounting cylinder 21 is threaded with a threaded rod 22, and a sliding sleeve 23 is screwed onto the outside of the threaded rod 22. The sliding sleeve 23 is movably fitted inside the mounting cylinder 21. By setting a lifting mechanism 2, the installation height of the butterfly clamp 4 can be adjusted to adjust the height of the burette, adapt to different experimental needs and container heights, and further improve the flexibility of the experiment.

[0028] The sliding sleeve 23 has a lubrication groove 24 inside, and a sealing plug 25 is screwed onto the upper surface of the sliding sleeve 23. The inner side of the sliding sleeve 23 has a through hole 26 for lubricating grease to contact the threaded rod 22. By adding lubricating grease to the surface of the threaded rod 22, the smoothness of the thread movement is improved.

[0029] There are four through holes 26, which are evenly distributed in a circle on the inner side of the sliding sleeve 23. By setting multiple through holes 26, the contact area between the lubricating grease and the threaded rod 22 is increased.

[0030] Please see Figures 1 to 3As the first embodiment of this utility model: when it is necessary to adjust the horizontal position of the butterfly clip 4, firstly rotate the drive rod 37. During the rotation of the drive rod 37, the drive bevel gear 38 is driven to rotate. During the rotation of the drive bevel gear 38, the driven bevel gear 36 meshing with it is driven to rotate. During the rotation of the driven bevel gear 36, the threaded rod 33 fixedly connected to it is driven to rotate. During the rotation of the threaded rod 33, the threaded rod 33 undergoes threaded movement with the support cylinder 34, causing the support cylinder 34 to move. During the displacement of the support cylinder 34, the butterfly clip 4 is driven to move. At the same time as the butterfly clip 4 is displaced, the telescopic rod 35 is stretched to complete the adjustment of the horizontal position of the butterfly clip 4, so as to adapt to different test requirements and different test container sizes and improve the flexibility of the test.

[0031] Please see Figures 1 to 5 As a second embodiment of this utility model: Based on the description in the above embodiments, further, when it is necessary to adjust the height of the butterfly clip 4, the threaded rod 22 is rotated. During the rotation, the threaded rod 22 and the sliding sleeve 23 undergo threaded movement, causing the sliding sleeve 23 to drive the horizontal adjustment mechanism 3 and the butterfly clip 4 to move, so as to complete the adjustment of the height of the butterfly clip 4, so as to adapt to different test requirements and different test container heights, and further improve the flexibility of the test. In order to ensure that the threaded rod 22 and the sliding sleeve 23 can rotate smoothly, the sealing plug 25 is rotated to separate it from the sliding sleeve 23, and then lubricating grease is injected into the interior of the sliding sleeve 23. The lubricating grease then contacts the surface of the threaded rod 22 through the through hole 26 to reduce the friction between the threaded rod 22 and the sliding sleeve 23.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easily adjustable burette holder, comprising: The base (1) and the butterfly clip (4) are characterized in that the upper surface of the base (1) is provided with a lifting mechanism (2) for adjusting the installation height of the butterfly clip (4), and the lifting mechanism (2) is provided with a horizontal adjustment mechanism (3) for adjusting the horizontal position of the butterfly clip (4), and the horizontal adjustment mechanism (3) is provided with the butterfly clip (4). The horizontal adjustment mechanism (3) includes a connecting plate (31), which is fixedly connected to the front side of the lifting mechanism (2). Support plates (32) are fixedly connected to the left and right sides of the connecting plate (31). A threaded rod (33) passes through the inside of the support plate (32) through a bearing. A support cylinder (34) is screwed onto the outside of the threaded rod (33) through a thread. A butterfly clip (4) is fixedly connected to the left end of the support cylinder (34), and a driven bevel gear (36) is fixedly connected to the right end of the threaded rod (33). The connecting plate (31) has a drive rod (37) passing through it via a bearing. The lower end of the drive rod (37) is fixedly connected to a drive bevel gear (38), which meshes with the driven bevel gear (36).

2. The burette holder for easy adjustment as described in claim 1, characterized in that: One end of the telescopic rod (35) is fixedly connected to the butterfly clip (4), and the other end of the telescopic rod (35) is fixedly connected to the support plate (32).

3. The burette holder for easy adjustment as described in claim 1, characterized in that: The lifting mechanism (2) includes a mounting cylinder (21), the lower end of which is fixedly mounted on the upper surface of the base (1); The upper end of the mounting cylinder (21) is threaded with a threaded rod (22), and a sliding sleeve (23) is threaded onto the outer side of the threaded rod (22). The sliding sleeve (23) is movably fitted into the interior of the mounting cylinder (21).

4. The burette holder for easy adjustment as described in claim 3, characterized in that: The sliding sleeve (23) has a lubrication groove (24) inside, and a sealing plug (25) is screwed onto the upper surface of the sliding sleeve (23) by a thread. The sliding sleeve (23) has a through hole (26) inside for lubricating grease to contact the threaded rod (22).

5. The burette holder as described in claim 4, characterized in that: The number of through holes (26) is four, and the four through holes (26) are evenly distributed in a circle on the inner side of the sliding sleeve (23).

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