Chemical analysis titration experiment device

Abstract

The utility model discloses a chemical analysis titration experiment device which comprises a base and a sliding groove, the sliding groove is installed at the lower end of the base, an adjusting mechanism is arranged at the upper end of the sliding groove and comprises a pulley, the lower end of the pulley is connected with the sliding groove in a sliding mode, and the outer wall of the pulley is connected with a connecting block in a rotating mode. The outer wall of the connecting block is fixedly connected with the workbench, and a containing groove is formed in the surface of the workbench. The tightness between a plastic sheet and a second titration rod is controlled by screwing a connecting ring, so that a fixing ring can be adjusted at the height position of the second titration rod, a burette can accurately drop into a conical flask at a rubber clamp for an experiment, and the burette can be intercepted by a large-area placement groove in the workbench and cannot slide to the outside, so that the burette is convenient to use. And the placing groove on the surface of the workbench is enlarged, so that cleaning is more convenient, and residual substances in small gaps are avoided.

Description

Technical field:

[0001] The utility model relates to the technical field of chemical analysis, in particular to a chemical analysis titration experimental device. Background technology:

[0002] Titration experiment equipment is a general term for the necessary tools used in titration experiments, including burettes, conical flasks, etc.

[0003] For example, a chemical analysis titration experimental device with the authorization announcement number "CN215866555U" solves the problem of the existing chemical analysis titration experimental device being prone to tilting and falling down when hit. The above-mentioned sliding rod is installed on the outer side of the fixed block, and springs are installed on the left and right sides of the sliding rod. One end of the spring is connected to the fixed block, and the other end is connected to the inner wall of the groove, so that the conical tube can be fixed. The conical tube is placed and tilted and falls down due to collision during the experiment. Considering the existing chemical analysis titration experimental device, during use, when the titration platform at the lower end can be replaced, when the burette on the burette clamp at the upper end is in a fixed state, there is a groove of the fixed clamp at the lower end, and the liquid in the burette is low to the inside of the groove of the titration platform, which makes it difficult to clean. At the same time, the number of burette clamps installed requires that the parts be placed in an extra place after disassembly, which requires searching for them when they are used again, which is inconvenient to use. Utility model content:

[0004] The utility model aims to provide a chemical analysis titration experimental device to solve the problems that the liquid in the burette of the prior art is low to the inside of the groove of the titration platform, which makes it difficult to clean, and the installation quantity and height of the burette clamp are affected by the reality of the titration rod, which makes it impossible to use more quantities at the same height.

[0005] The utility model is implemented by the following technical scheme: a chemical analysis titration experimental device, comprising a base and a slide groove, the lower end of the base is equipped with a slide groove, the upper end of the slide groove is provided with an adjustment mechanism, the adjustment mechanism comprises a pulley, the lower end of the pulley is slidably connected to the slide groove, the outer wall of the pulley is rotatably connected to a connecting block, the outer wall of the connecting block is fixedly connected to a workbench, the surface of the workbench is equipped with a placement groove, the outer wall of the workbench is fixedly connected with a push block, the inner wall of the push block is slidably connected to a push button, and the lower end of the push button is fixedly connected to a fixed block.

[0006] Preferably, the inner wall of the placement groove is provided with a clamping mechanism, and the clamping mechanism includes a round block, the lower end of the round block is tightly pressed against the placement groove, the outer wall of the round block is fixedly connected to the mounting seat, the inner wall of the mounting seat is provided with a long groove, the inner wall of the long groove is slidably connected to the long block, the outer wall of the long block is fixedly connected to the splint, and the inner wall of the long block is threadedly connected to the bolt.

[0007] Preferably, the inner wall of the base is threadedly connected to the first titration rod, the inner wall of the first titration rod is threadedly connected to the threaded block, and the upper end of the threaded block is fixedly connected to the second titration rod.

[0008] Preferably, the outer wall of the second titration rod is movably connected to the fixing ring, the outer wall of the fixing ring is fixedly connected to the plastic sheet, and the outer wall of the plastic sheet is threadedly connected to the connecting ring.

[0009] Preferably, the inner wall of the fixing ring is threadedly connected to the connecting rod, and the end of the connecting rod is fixedly connected to the rubber clamp.

[0010] Preferably, the inner wall of the rubber clamp is tightly pressed against the burette.

[0011] Preferably, a circular hole is installed on the surface of the base, and the inner wall of the circular hole is tightly pressed against the fixing block.

[0012] Preferably, the lower end of the base is threadedly connected to the chassis, and the lower end of the chassis is fixedly connected to the rubber leg.

[0013] Advantages of the utility model:

[0014] The utility model controls the tightness between the plastic sheet and the second titration rod by twisting the connecting ring, so that the fixing ring can be adjusted at the height position of the second titration rod, so that the burette can be accurately dripped into the conical bottle in the rubber clamp to carry out the experiment, and the workbench has a large-area placement groove to intercept the burette and prevent it from sliding to the outside, and the placement groove on the surface of the workbench becomes larger, which is more convenient for cleaning, so that no residual substances in small gaps occur.

[0015] The rubber clips on the multiple connecting rods can be threadedly installed on the fixing ring, and the bottom plate at the lower end can be twisted to separate the inner thread block of the second titration rod. Then, the second titration rod and the first titration rod can be sequentially placed into the inside of the bottom plate, and the connecting rod and the rubber clip can be placed into the inside of the bottom plate, so that there is no need for additional searching, and the use is more convenient. Description of the drawings:

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the utility model

[0018] Figure 2It is a front view cross-sectional structural schematic diagram of a chemical analysis titration experimental device according to an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of a top cross-sectional structure of a chemical analysis titration experimental device according to an embodiment of the utility model;

[0020] Figure 4 A chemical analysis titration experimental device according to an embodiment of the utility model Figure 2 Middle A is a schematic diagram of a partially enlarged structure;

[0021] Figure 5 A chemical analysis titration experimental device according to an embodiment of the utility model Figure 2 Middle B is a schematic diagram of the enlarged structure;

[0022] Figure 6 A chemical analysis titration experimental device according to an embodiment of the utility model Figure 1 Schematic diagram of the enlarged structure of the middle fixing ring.

[0023] Figure 7 A chemical analysis titration experimental device according to an embodiment of the utility model Figure 1 Schematic diagram of the enlarged structure of the middle push block.

[0024] In the figure: 1, base, 2, slide groove, 3, adjustment mechanism, 301, pulley, 302, connecting block, 303, placement groove, 304, push block, 305, push button, 306, fixed block, 307, workbench, 4, clamping mechanism, 401, round block, 402, mounting seat, 403, long groove, 404, long block, 405, splint, 406, bolt, 5, first titration rod, 6, threaded block, 7, second titration rod, 8, fixing ring, 9, plastic sheet, 10, connecting ring, 11, connecting rod, 12, rubber clamp, 13, burette, 14, round hole, 15, rubber leg, 16, chassis. Specific implementation method:

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7The utility model provides a technical solution: a chemical analysis titration experimental device, including a base 1 and a slide 2, the lower end of the base 1 is equipped with the slide 2, the upper end of the slide 2 is provided with an adjustment mechanism 3, the push button 305 drives the fixed block 306 to separate from the circular hole 14 on the base 1, at this time, the finger pushes the push block 304 to drive the work 303 to rotate on the base 1, so that the outer wall of the clamping plate 405 at different positions clamps the conical bottle of the experiment to adjust the position, the adjustment mechanism 3 includes a pulley 301, the lower end of the pulley 301 slides with the slide 2 The outer wall of the pulley 301 is rotatably connected with the connecting block 302, and the pulley 301 can slide in the circular slide groove 2 inside the base 1, so that the connecting block 302 at the upper end of the pulley 301 drives the work 303 to move more stably, the outer wall of the connecting block 302 is fixedly connected with the workbench 307, the surface of the workbench 307 is provided with a placement groove 303, the outer wall of the workbench 307 is fixedly connected with a push block 304, the inner wall of the push block 304 is slidably connected with the push button 305, and the lower end of the push button 305 is fixedly connected with the fixed block 306;

[0027] The connecting ring 11 is twisted to control the tightness between the plastic sheet 9 and the second titration rod 7, so that the fixing ring 8 can be adjusted at the height of the second titration rod 7, so that the burette 13 can be accurately dripped into the conical flask in the rubber clamp 12 to perform the experiment. The workbench 307 has a large-area placement groove 303 to intercept the burette and prevent it from sliding to the outside. The placement groove 303 on the surface of the workbench 307 becomes larger, which is more convenient for cleaning, so that there is no residual material in the small gap.

[0028] See also Figure 1 , Figure 2 and Figure 5 The inner wall of the placement groove 303 is provided with a clamping mechanism 4. By adjusting the position of the clamping plate 405 on the mounting seat 402, the clamping plate 405 is attached to the titration experimental component. The bolt 406 is screwed through the long block 404 and fixed to the mounting seat 402, so that the clamping plate 405 can achieve the clamping effect. The firmly clamping mechanism 4 includes a round block 401. The round block 401 inside the placement groove 303 has an opening of the same size. The round block 401 at the lower end of the mounting seat 402 can be inserted into the workpiece. The internal opening of the placement groove 303 inside the workbench 307 makes the mounting seat 402 more stable on the workbench 307, the lower end of the round block 401 is tightly pressed against the placement groove 303, the outer wall of the round block 401 is fixedly connected to the mounting seat 402, the inner wall of the mounting seat 402 is installed with a long groove 403, the inner wall of the long groove 403 is slidably connected to the long block 404, the outer wall of the long block 404 is fixedly connected to the splint 405, and the inner wall of the long block 404 is threadedly connected to the bolt 406.

[0029] See also Figure 1 and Figure 2The inner wall of the base 1 is threadedly connected to the first titration rod 5, the inner wall of the first titration rod 5 is threadedly connected to the threaded block 6, the upper end of the threaded block 6 is fixedly connected to the second titration rod 7, and after the threaded block 6 inside the second titration rod 7 is separated, the second titration rod 7 and the first titration rod 7 are also separated, and the second titration rod 7 and the first titration rod 7 become a single short body part, which can reach the length of being inserted into the interior of the chassis 16, which is convenient for next use without having to search.

[0030] See also Figure 1 and Figure 2 The outer wall of the second titration rod 7 is movably connected to the fixing ring 8, the outer wall of the fixing ring 8 is fixedly connected to the plastic sheet 9, the position of the inside of the connecting ring 10 and the plastic sheet 9 rotates, the inside of the plastic sheet 9 is constantly deformed and tightened, and the inner walls of the multiple plastic sheets 9 can achieve the effect of tightening and fixing the second titration rod 7, making the fixing ring 8 more stable on the second titration rod 7, and preventing the burette 13 from being loosened and slipping due to the fixing ring 8. The outer wall of the plastic sheet 9 is threadedly connected to the connecting ring 10.

[0031] See also Figure 1 and Figure 2 , the inner wall of the fixing ring 8 is threadedly connected to the connecting rod 11, the end of the connecting rod 11 is fixedly connected to the rubber clamp 12, and the inner wall of the rubber clamp 12 is tightly against the burette 13;

[0032] The rubber clips 12 on the multiple connecting rods 11 can be threadedly installed on the fixing ring 8, and the chassis 16 at the lower end is twisted to separate the internal thread block 6 of the second titration rod 7, and then the second titration rod 7 and the first titration rod 7 are placed into the interior of the chassis 16 in turn, and the connecting rods 11 and the rubber clips 12 are placed into the interior of the chassis 16, so that there is no need for additional searching, which is more convenient to use.

[0033] See also Figure 1 and Figure 2 The inner wall of the rubber clamp 12 is tightly against the burette 13. When the rubber clamp 12 is squeezed and deformed, the burette 13 is placed into the rubber clamp 12. When the pressure on the rubber clamp 12 is stopped, the rubber clamp 12 returns to its original state and quickly clamps and fixes the burette 13. A circular hole 14 is installed on the surface of the base 1. The inner wall of the circular hole 14 is tightly against the fixing block 306. The outer wall of the base 1 is threadedly connected to the chassis 16. The lower end of the chassis 16 is fixedly connected to the rubber leg 15. The rubber leg 15 is made of silicone and has a strong anti-slip effect. The upper end of the base 1 will not move at will. The chassis 16 has a cavity inside, and the accessories rubber clamp 12 and the connecting rod 11 can be placed inside the chassis 16 when idle, which can achieve a more convenient effect during use.

[0034] Working principle:

[0035] Preparation

[0036] First, place the experimental conical flask on the mounting seat 402, and push the clamp 405 towards the mounting seat 402, and the long block 404 at the lower end of the clamp 405 moves synchronously inside the long groove 403 until the outer wall of the clamp 405 clamps the experimental conical flask, then screw the bolt 406 through the long block 404 and fix it to the mounting seat 402, so that the clamp 405 clamps the conical flask firmly, and insert the round block 401 at the lower end of the mounting seat 402 into the placement groove 303 inside the workbench 307, so that the mounting seat 402 is more stable on the workbench 307 to avoid tipping over due to accidental contact.

[0037] Working stage

[0038] At the same time, according to the types of experimental raw materials for chemical analysis titration experiments, the user can thread the rubber clips 12 on the multiple connecting rods 11 onto the fixing ring 8, and can twist the connecting ring 11 to control the tightness between the plastic sheet 9 and the second titration rod 7, so that the fixing ring 8 can be adjusted at the height of the second titration rod 7, so that the burette 13 can be accurately dripped into the conical flask in the rubber clip 12 for the experiment, avoiding the effect of falling to the outside, and pushing the push button 305 upward to drive the fixing block 306 to separate from the circular hole 14 on the base 1. At this time, the finger pushes the push block 304 to drive the work 303 to rotate on the base 1, so that the outer wall of the clamping plate 405 at different positions clamps the conical flask of the experiment to change the position, which is convenient for the burettes 13 at different positions to drip into the conical flasks at different positions for titration experiments, thereby improving the work efficiency.

[0039] End of work

[0040] After twisting the bottom chassis 16 to separate the internal threaded block 6 of the second titration rod 7, the second titration rod 7 and the first titration rod 7 are sequentially placed into the bottom chassis 16, and the connecting rod 11 and the rubber clamp 12 are placed into the bottom chassis 16, which reduces the need for additional searching for reuse and makes it more convenient to use.

[0041] 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 in the protection scope of the present invention.

Claims

1. A chemical analysis titration experimental device, comprising a base (1) and a slideway (2), wherein the slideway (2) is installed at the lower end of the base (1), characterized in that: An adjusting mechanism (3) is provided at the upper end of the slide groove (2), and the adjusting mechanism (3) comprises a pulley (301), the lower end of the pulley (301) is slidably connected to the slide groove (2), the outer wall of the pulley (301) is rotatably connected to the connecting block (302), the outer wall of the connecting block (302) is fixedly connected to the workbench (307), a placement groove (303) is installed on the surface of the workbench (307), a push block (304) is fixedly installed on the outer wall of the workbench (307), the inner wall of the push block (304) is slidably connected to the push button (305), and the lower end of the push button (305) is fixedly connected to the fixing block (306).

2. A chemical analysis titration experimental device according to claim 1, characterized in that: The inner wall of the placement groove (303) is provided with a clamping mechanism (4), and the clamping mechanism (4) comprises a round block (401), the lower end of the round block (401) is tightly abutted against the placement groove (303), the outer wall of the round block (401) is fixedly connected to the mounting seat (402), the inner wall of the mounting seat (402) is provided with a long groove (403), the inner wall of the long groove (403) is slidably connected to the long block (404), the outer wall of the long block (404) is fixedly connected to the clamping plate (405), and the inner wall of the long block (404) is threadedly connected to the bolt (406).

3. A chemical analysis titration experimental device according to claim 1, characterized in that: The inner wall of the base (1) is threadedly connected to the first titration rod (5), the inner wall of the first titration rod (5) is threadedly connected to the threaded block (6), and the upper end of the threaded block (6) is fixedly connected to the second titration rod (7).

4. A chemical analysis titration experimental device according to claim 3, characterized in that: The outer wall of the second titration rod (7) is movably connected to the fixing ring (8), the outer wall of the fixing ring (8) is fixedly connected to the plastic sheet (9), and the outer wall of the plastic sheet (9) is threadedly connected to the connecting ring (10).

5. A chemical analysis titration experimental device according to claim 4, characterized in that: The inner wall of the fixing ring (8) is threadedly connected to the connecting rod (11), and the end of the connecting rod (11) is fixedly connected to the rubber clamp (12).

6. A chemical analysis titration experimental device according to claim 5, characterized in that: The inner wall of the rubber clamp (12) is tightly pressed against the burette (13).

7. A chemical analysis titration experimental device according to claim 1, characterized in that: A circular hole (14) is installed on the surface of the base (1), and the inner wall of the circular hole (14) is tightly pressed against the fixing block (306).

8. A chemical analysis titration experimental device according to claim 1, characterized in that: The lower end of the base (1) is threadedly connected to the chassis (16), and the lower end of the chassis (16) is fixedly connected to the rubber leg (15).

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