Chemical test bed with self-circulating water

Abstract

The invention provides a chemical test bed with self-circulating water, and relates to the technical field of chemical tests.The chemical test bed body comprises a supporting frame, a preheating mechanism, a clamping and positioning assembly and a water bath circulating system, a regulation and control frame is welded to the rear end of the top of the supporting frame, and a sliding groove is formed in the surface of the regulation and control frame; a sliding groove is formed in the top end and the bottom end of the inner wall of the supporting frame, clamping grooves are formed in the top end and the bottom end of the inner wall of the sliding groove, the rear end of a clamping and positioning assembly is embedded into the sliding groove, each chemical test tube is embedded into the clamping and positioning assembly, and an operation table is placed on the top of the supporting frame. The device is simple in structure and higher in stability and flexibility, the opening size of the top of the water bath tank can be automatically matched according to the size of a test tube needing water bath heating, the pollution probability of circulating water is reduced, the water changing period is prolonged, the preheating effect can be achieved by recycling steam, and the probability of test tube burst is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of chemical experiments, in particular to a chemical experiment platform with self-circulating water. Background Art

[0002] In the field of chemical experiments, circulating water is often used to achieve multiple functions such as temperature control, reaction promotion, and resource conservation. For example, in a high and low temperature circulating water bath, circulating water circulates within the set temperature range through a heating and cooling system to provide a stable temperature environment for the experiment and ensure the accuracy and reliability of the experimental results. In the reactor, circulating water can maintain the heat generated by the reaction, ensure the reaction temperature, prevent the occurrence of high-temperature explosions during the reaction, and ensure the purity and quality of the reaction products.

[0003] When the chemical test bench in the prior art heats different test tubes with the help of a circulatory water bath heating device to promote the reaction, it is necessary to use a special clamping structure to clamp and fix the different test tubes, and then place them inside the water bath for heating treatment. When this process requires operation on multiple test tubes of different specifications, a large amount of test bench space will be occupied, and more manual operation processes are required, which increases the difficulty of the experiment. On the other hand, when heating some glass test tubes, the test tubes often burst due to excessive temperature differences, which is dangerous. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a self-circulating water chemical test bench to solve the problems raised in the above-mentioned background technology. The present invention can clamp and fix test tubes of different specifications, optimize space occupancy, and have higher stability and flexibility. It can automatically match the opening size of the top of the water bath tank according to the size of the test tube that needs to be heated in a water bath, thereby reducing the probability of contamination of the circulating water, extending the water change cycle, and can achieve a preheating effect by recycling steam, thereby reducing the probability of test tube bursting.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a self-circulating water chemical test bench, comprising a chemical test bench body and a chemical test tube, the chemical test bench body comprising a support frame, a preheating mechanism, a clamping and positioning component and a water bath circulation system, a regulating frame is welded to the top rear end of the support frame, a slide groove is provided on the surface of the regulating frame, and a card groove is provided at the top and bottom ends of the inner wall of the slide groove, the rear ends of the clamping and positioning components are embedded in the interior of the slide groove, and each of the chemical test tubes is embedded in the interior of the clamping and positioning components, an operating table is placed on the top of the support frame, and a water bath circulation system is built on the surface of the operating table, a water bath tank is provided at one end of the water bath circulation system, a preheating mechanism is installed inside the water bath tank, each of the chemical test tubes is pressed against the interior of the preheating mechanism after the clamping and positioning component is moved down, circulating water is injected into the interior of the water bath tank, and hot water is used to heat the chemical test tubes inside the water bath tank.

[0006] Furthermore, the clamping and positioning assembly includes a slider, an extension plate and an anti-slip belt, the top and bottom of the slider are integrally formed with a clamping strip, the front end of the slider is welded with a guide bracket, the surface of the guide bracket is sleeved with a lifting sleeve, the side of the lifting sleeve is inserted with a locking bolt, and the locking bolt passes through the surface of the lifting sleeve and then presses against the surface of the guide bracket.

[0007] Furthermore, a fixed base is integrally formed on the side of the extension plate, an extension frame is also sleeved on the surface of the extension plate, a movable plate is integrally formed on the side of the extension frame, a threaded sleeve is provided in the middle of the movable plate, and a screw rod is inserted into the interior of the threaded sleeve.

[0008] Furthermore, the end of the screw rod is embedded in the surface of the fixed base through a bearing, the end of the extension plate is attached with an anti-slip belt, and the side of the extension plate is welded with a guide rod.

[0009] Furthermore, a gap is provided between the guide rod and the extension plate, the anti-slip belt passes through the gap between the guide rod and the extension plate, and is wound and adhered to the surface of the chemical test tube, and the other end of the anti-slip belt is attached to the surface of the movable plate.

[0010] Furthermore, the water bath circulation system includes an electric heating box and a circulation pump. The electric heating box is installed on the surface of the operating table. The interior of the water bath is integrally formed with multiple partitions, and the water bath can divide the internal cavity into multiple independent areas by the partitions, and the hot water inside each independent area is separated from each other.

[0011] Furthermore, the interior of the electric heating box is connected to one end of the water bath through a delivery pipe, a lower hanging plate is welded to the bottom of the operating table, a circulation pump is placed on the surface of the lower hanging plate, and one end of the circulation pump is connected to a reflux pipe.

[0012] Furthermore, the reflux pipe is connected to one end of the water bath, and the reflux pipe and the delivery pipe are both connected to the same partition area inside the water bath. The water bath transfers heat from the higher temperature area to the lower temperature area on the other side through the partition.

[0013] Furthermore, the preheating mechanism includes a fan and a push plate, the fan is installed on one side of the surface of the water bath, a push plate is inserted on the inner wall of the water bath, a spring rod is welded to one end of the push plate, and the other end of the spring rod is inserted into the inner wall of the water bath, a conical plate is integrally formed on the top of the push plate, a preheating pipe is connected to the rear end of the conical plate, and the preheating pipe is connected to the airflow outlet end of the fan.

[0014] Furthermore, the rear end of the fan is connected to a first steam pipe or a second steam pipe, and the first steam pipe is connected to the inside of the water bath on the side, and the second steam pipe is directly connected to the internal top cavity of the electric heating box. A preheating plate is mounted on the end of the push plate and the conical plate, and steam holes are opened on the inner wall of the preheating plate. The preheating plate has an arc-shaped structure as a whole, and is used to fit the surface of the chemical test tube.

[0015] Beneficial effects of the present invention:

[0016] 1. The self-circulating water chemical test bench is equipped with multiple clamping and positioning components on the control frame. With the help of each clamping and positioning component, test tubes of any specifications can be clamped and fixed, and a large-area fitting and locking effect can be achieved with the help of belts. Each clamping and positioning component can move horizontally independently and control the test tube to move up and down, which optimizes the space occupancy and has higher stability and flexibility when operating and moving the chemical experiment test tubes.

[0017] 2. After the self-circulating water chemical test bench completes the clamping of the test tube by the clamping and positioning assembly, the clamping and positioning assembly is directly controlled to drive the test tube to descend, and after it abuts against the end of the preheating mechanism, the corresponding number of conical plates can be pushed open with the help of pressure, and then the opening size of the top of the water bath tank can be automatically matched according to the size of the test tube that needs to be heated in the water bath, thereby reducing the probability of external contamination of the circulating water and extending the water change cycle during the water circulation process.

[0018] 3. The self-circulating water chemical test bench is equipped with multiple water baths and controls the temperature to change in gradient. Therefore, when faced with experimental scenarios that require high temperature heating, the temperature can be raised one by one. At the same time, the preheating effect can be achieved by recycling the steam, reducing the probability of test tube bursting and making the water bath circulation heating process safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the appearance of a self-circulating water chemical test bench of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the control framework part of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the clamping and positioning component part of the present invention;

[0022] Figure 4 This is a disassembled view of the front end of the clamping and positioning assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the water bath circulation system of the present invention;

[0024] Figure 6 This is a disassembled diagram of the rear end of the preheating mechanism of the present invention;

[0025] Figure 7 It is a structural diagram of the front end of the preheating mechanism of the present invention;

[0026] In the figure: 1. support frame; 2. operating table; 3. control frame; 4. clamping and positioning assembly; 5. water bath circulation system; 6. preheating mechanism; 7. slide groove; 8. card slot; 9. chemical test tube; 10. slider; 11. card strip; 12. guide bracket; 13. lifting sleeve; 14. locking bolt; 15. extension plate; 16. fixed base; 17. anti-slip belt; 18. guide rod; 19. moving plate; 20. threaded sleeve; 21. screw rod; 22. extension frame; 23. electric heating box; 24. lower hanging plate; 25. circulation pump; 26. return pipe; 27. delivery pipe; 28. water bath; 29. ​​partition; 30. fan; 31. first steam pipe; 32. second steam pipe; 33. push plate; 34. spring rod; 35. conical plate; 36. preheating pipe; 37. preheating plate; 38. steam hole. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 7The present invention provides the following technical solutions: a self-circulating water chemical test bench, comprising a chemical test bench body and a chemical test tube 9, wherein the chemical test bench body comprises a support frame 1, a preheating mechanism 6, a clamping and positioning component 4 and a water bath circulation system 5, a regulating frame 3 is welded to the top rear end of the support frame 1, a slide groove 7 is provided on the surface of the regulating frame 3, and a card groove 8 is provided on the top and bottom of the inner wall of the slide groove 7, the rear end of the clamping and positioning component 4 is embedded in the inside of the slide groove 7, and each of the chemical test tubes 9 is embedded in the inside of the clamping and positioning component 4, an operating table 2 is placed on the top of the support frame 1, a water bath circulation system 5 is built on the surface of the operating table 2, a water bath 28 is provided at one end of the water bath circulation system 5, a preheating mechanism 6 is installed inside the water bath 28, each of the chemical test tubes 9 is moved down by the clamping and positioning component 4 and then pressed against the inside of the preheating mechanism 6, circulating water is injected into the inside of the water bath 28, and hot water is used to heat the chemical test tubes 9 inside the water bath 28. The chemical test bench is equipped with a water circulation system and can be used in chemical experiments that require heating.

[0029] When the present invention is used, the chemical test tube 9 used in the experiment is placed in the corresponding clamping and positioning component 4, and the chemical test tube 9 is clamped and fixed by rotating the screw rod 21 in cooperation with the anti-slip belt 17, and then the subsequent water bath heating process can be carried out. The heated water is injected into the water bath tank 28 through the water bath circulation system 5 on the surface of the operating table 2. At this time, the clamping and positioning component 4 is manually controlled to move downward until the bottom of the chemical test tube 9 containing the chemical reagent is pressed against the surface of the preheating mechanism 6, and pressed downward until the side of the chemical test tube 9 is pressed against the end of the preheating mechanism 6. At this time, the preheating treatment can be carried out, and after the preheating is completed, it continues to move downward until it is embedded in the water bath tank 28, and the heating process is completed with the help of the internal hot water.

[0030] In this embodiment, the clamping and positioning assembly 4 includes a slider 10, an extension plate 15 and an anti-skid belt 17. The top and bottom of the slider 10 are integrally formed with a clamping strip 11. The front end of the slider 10 is welded with a guide bracket 12. The surface of the guide bracket 12 is sleeved with a lifting sleeve 13. The side of the lifting sleeve 13 is inserted with a locking bolt 14. The locking bolt 14 passes through the surface of the lifting sleeve 13 and then presses against the surface of the guide bracket 12. The side of the extension plate 15 is integrally formed with a fixed base 16. The surface of the extension plate 15 is also sleeved with an extension frame 22. The side of the extension frame 22 is integrally formed with a moving plate 19. The middle of the moving plate 19 is provided with a threaded sleeve 20. The inside of the threaded sleeve 20 is inserted with a screw rod 21. The end of the screw rod 21 is embedded in the surface of the fixed base 16 through a bearing. The end of the extension plate 15 is attached with an anti-skid belt 17. The side of the extension plate 15 is welded with a guide rod 18. A gap is provided between the guide rod 18 and the extension plate 15, and the anti-skid belt 17 passes through the gap between the guide rod 18 and the extension plate 15, and the anti-skid belt 17 is wound and attached to the surface of the chemical test tube 9, and the other end of the anti-skid belt 17 is attached to the surface of the moving plate 19. A plurality of clamping and positioning components 4 are installed on the control frame 3, and each clamping and positioning component 4 can clamp and fix a test tube of any specification, and a large-area fitting and locking effect can be achieved with the help of a belt, and each clamping and positioning component 4 can independently move horizontally and control the test tube to move up and down, thereby optimizing space occupancy and providing higher stability and flexibility when operating and moving the chemical experiment test tube.

[0031] Specifically, in the dehumidification state, by rotating the screw rod 21, the anti-skid belt 17 at the front end is loosened and unfolded. At this time, the chemical test tube 9 can be embedded in the inner side of the anti-skid belt 17, and then the screw rod 21 is rotated, and the movable plate 19 is pulled toward the rear end by means of the screw rod 21 and the threaded sleeve 20. Since the surface of the movable plate 19 is fixedly bonded to one end of the anti-skid belt 17, the sliding of the movable plate 19 toward the rear end will directly pull the anti-skid belt 17. During the pulling process, the anti-skid belt 17 can be tightened, and the clamping and locking effect of the chemical test tube 9 can be achieved. For chemical test tubes 9 of different specifications, effective clamping and fixing can be ensured by the moving length of the movable plate 19. After clamping is completed, the locking bolt 14 is rotated to release the locking effect of the lifting sleeve 13, and the extension plate 15 can be directly pulled to cooperate with the lifting sleeve 13 to move down along the guide bracket 12, and finally drive the chemical test tube 9 to move down and embed into the interior of the water bath 28.

[0032] In this embodiment, the water bath circulation system 5 includes an electric heating box 23 and a circulation pump 25. The electric heating box 23 is installed on the surface of the operating table 2. The interior of the water bath 28 is integrally formed with a plurality of partitions 29, and the water bath 28 can divide the internal cavity into a plurality of independent areas by the partitions 29, and the hot water inside each independent area is separated from each other. The interior of the electric heating box 23 is connected to one end of the interior of the water bath 28 through a delivery pipe 27. A lower hanging plate 24 is welded to the bottom of the operating table 2. A circulation pump 25 is placed on the surface of the lower hanging plate 24, and one end of the circulation pump 25 is connected to a return pipe 26. The return pipe 26 is connected to one end of the interior of the water bath 28, and the return pipe 26 and the delivery pipe 27 are both connected to the same separated area inside the water bath 28. The interior of the water bath 28 transfers the heat in the higher temperature area to the lower temperature area on the other side through the partition 29. After the test tube is clamped by the clamping and positioning component 4, the clamping and positioning component 4 is directly controlled to drive the test tube to descend, and after it is pressed against the end of the preheating mechanism 6, the corresponding number of conical plates 35 can be pushed open with the help of pressure, so that the opening size of the top of the water bath tank 28 can be automatically matched according to the size of the test tube that needs to be heated in the water bath, thereby reducing the probability of external contamination of the circulating water and extending the water replacement cycle during the water circulation process.

[0033] Specifically, the water inside is heated by the electric heating box 23, and then injected into the water bath 28 through the side delivery pipe 27, as shown in FIG. Figure 1 As described above, in this embodiment, the water bath 28 is divided into three areas by two partitions 29, and the heated high-temperature water flow is injected into the range of the water bath 28 at the far right end through the delivery channel, while the hot water at the right end is transferred to the other two cavities in turn through the partitions 29, so that the temperature inside the water bath 28 can be divided into gradients. At the same time, the hot water at the far right end is extracted with the help of the circulation pump 25 at the bottom and circulated into the interior of the electric heating box 23, so as to achieve the purpose of continuous circulation heating.

[0034] In this embodiment, the preheating mechanism 6 includes a fan 30 and a push plate 33. The fan 30 is installed on one side of the surface of the water bath 28. The push plate 33 is inserted on the inner wall of the water bath 28. A spring rod 34 is welded to one end of the push plate 33. The other end of the spring rod 34 is inserted into the inner wall of the water bath. A conical plate 35 is integrally formed on the top of the push plate 33. The rear end of the conical plate 35 is connected to a preheating pipe 36. The preheating pipe 36 is connected to the air flow outlet end of the fan 30. The rear end of the fan 30 is connected to the first steam pipe 31 or the second steam pipe 32, and the first steam pipe 31 is connected to the inside of the water bath 28 on the side, and the second steam pipe 32 is directly connected to the internal top cavity of the electric heating box 23. The push plate 33 and the conical plate 35 are mounted with a preheating plate 37 at the end, and the inner wall of the preheating plate 37 is provided with steam holes 38. The preheating plate 37 is an arc-shaped structure as a whole, and the preheating plate 37 is used to fit the surface of the chemical test tube 9. A plurality of water baths 28 are provided, and the temperature is controlled to change in a gradient, so that when facing an experimental scene that requires high temperature heating, they can be heated one by one, and the preheating effect can also be achieved by recycling the steam, which reduces the probability of test tube bursting and makes the water bath cycle heating process safer.

[0035] Specifically, after the chemical test tube 9 is moved downward by the clamping and positioning component 4, the part of the conical plate 35 that the bottom contacts will be pressed toward one side until the push plate 33 is moved toward one side of the spring rod 34, and the spring rod 34 is compressed until the bottom of the chemical test tube 9 is pressed to the end of the conical plate 35 and the push plate 33. At this time, the preheating plate 37 can be used to press against the surface of the chemical test tube 9, and the steam inside the water bath 28 or the electric heating box 23 in a higher temperature range on one side is drawn into the steam pipe with the help of the fan 30, and then blown toward the inside of the preheating pipe 36, and finally the steam is used to heat the surface of the chemical test tube 9 and the preheating plate 37. The chemical test tube 9 is preheated in advance with the help of this temperature. After the preheating is completed, the chemical test tube 9 can be further moved down and embedded in the hot water at the bottom, or the area of ​​the water bath 28 can be replaced and placed in a higher temperature area for further preheating.

[0036] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A chemical test bench with self-circulating water, comprising a chemical test bench body and a chemical test tube (9), characterized in that: The chemical test bench body comprises a support frame (1), a preheating mechanism (6), a clamping and positioning assembly (4) and a water bath circulation system (5). A regulating frame (3) is welded to the top rear end of the support frame (1). A slide groove (7) is provided on the surface of the regulating frame (3). The top and bottom ends of the inner wall of the slide groove (7) are provided with a clamping groove (8). The rear end of the clamping and positioning assembly (4) is embedded in the interior of the slide groove (7). Each of the chemical test tubes (9) is embedded in the interior of the clamping and positioning assembly (4). The support frame An operating table (2) is placed on the top of (1), a water bath circulation system (5) is built on the surface of the operating table (2), a water bath tank (28) is arranged at one end of the water bath circulation system (5), a preheating mechanism (6) is installed inside the water bath tank (28), each of the chemical test tubes (9) is moved down by the clamping positioning component (4) and then pressed against the inside of the preheating mechanism (6), circulating water is injected into the inside of the water bath tank (28), and the hot water inside the water bath tank (28) is used to heat the chemical test tubes (9).

2. A self-circulating water chemical test bench according to claim 1, characterized in that: The clamping and positioning assembly (4) comprises a slider (10), an extension plate (15) and an anti-slip belt (17); the top and bottom of the slider (10) are integrally formed with a clamping strip (11); the front end of the slider (10) is welded with a guide bracket (12); the surface of the guide bracket (12) is sleeved with a lifting sleeve (13); the side of the lifting sleeve (13) is inserted with a locking bolt (14); the locking bolt (14) passes through the surface of the lifting sleeve (13) and then presses against the surface of the guide bracket (12).

3. A self-circulating water chemical test bench according to claim 2, characterized in that: A fixed base (16) is integrally formed on the side of the extension plate (15), an extension frame (22) is sleeved on the surface of the extension plate (15), a movable plate (19) is integrally formed on the side of the extension frame (22), a threaded sleeve (20) is provided in the middle of the movable plate (19), and a screw rod (21) is inserted into the interior of the threaded sleeve (20).

4. The self-circulating water chemical test bench according to claim 3 is characterized by: The end of the screw rod (21) is embedded in the surface of the fixed base (16) through a bearing, the end of the extension plate (15) is attached with an anti-slip belt (17), and the side of the extension plate (15) is welded with a guide rod (18).

5. The self-circulating water chemical test bench according to claim 4 is characterized by: A gap is provided between the guide rod (18) and the extension plate (15), the anti-slip belt (17) passes through the gap between the guide rod (18) and the extension plate (15), and the anti-slip belt (17) is wound and adhered to the surface of the chemical test tube (9), and the other end of the anti-slip belt (17) is attached to the surface of the moving plate (19).

6. The self-circulating water chemical test bench according to claim 2 is characterized by: The water bath circulation system (5) comprises an electric heating box (23) and a circulation pump (25), wherein the electric heating box (23) is installed on the surface of the operating table (2), and the interior of the water bath (28) is integrally formed with a plurality of partitions (29), and the water bath (28) can divide the internal cavity into a plurality of independent areas by the partitions (29), and the hot water in each independent area is separated from each other.

7. The self-circulating water chemical test bench according to claim 6 is characterized by: The interior of the electric heating box (23) is connected to one end of the interior of the water bath (28) via a delivery pipe (27); a lower hanging plate (24) is welded to the bottom of the operating table (2); a circulation pump (25) is placed on the surface of the lower hanging plate (24); and one end of the circulation pump (25) is connected to a return pipe (26).

8. The self-circulating water chemical test bench according to claim 7 is characterized by: The reflux pipe (26) is connected to one end of the water bath (28), and the reflux pipe (26) and the delivery pipe (27) are both connected to the same partition area inside the water bath (28). The water bath (28) transfers heat from a higher temperature area to a lower temperature area on the other side through a partition (29).

9. The self-circulating water chemical test bench according to claim 6 is characterized by: The preheating mechanism (6) comprises a fan (30) and a push plate (33), wherein the fan (30) is mounted on one side of the surface of the water bath (28), and the push plate (33) is inserted on the inner wall of the water bath (28), and a spring rod (34) is welded to one end of the push plate (33), and the other end of the spring rod (34) is inserted into the inner wall of the water bath, and a conical plate (35) is integrally formed on the top of the push plate (33), and a preheating pipe (36) is connected to the rear end of the conical plate (35), and the preheating pipe (36) is connected to the air flow outlet end of the fan (30).

10. A self-circulating water chemical test bench according to claim 9, characterized in that: The rear end of the fan (30) is connected to a first steam pipe (31) or a second steam pipe (32), and the first steam pipe (31) is connected to the inside of the water bath (28) on the side, and the second steam pipe (32) is directly connected to the internal top cavity of the electric heating box (23). The ends of the push plate (33) and the conical plate (35) are mounted with a preheating plate (37), and the inner wall of the preheating plate (37) is provided with steam holes (38). The preheating plate (37) is an arc-shaped structure as a whole, and the preheating plate (37) is used to fit the surface of the chemical test tube (9).

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