A teaching experiment table and its use method

Abstract

The present invention relates to the technical field of teaching tools, and specifically to a teaching laboratory bench and a method for using the same, comprising a main laboratory bench, wherein a main table top is fixedly installed on the upper surface of the main laboratory bench, a split laboratory bench component 1 is arranged on one side of the main laboratory bench, and a split laboratory bench component 2 is arranged on the other side of the main laboratory bench; the beneficial effect is as follows: the present invention designs a split laboratory bench component 1 and a split laboratory bench component 2, so that the two sides of the main laboratory bench can be used as teaching operation tables for different experiments respectively, the split laboratory bench composed of a split laboratory bench 1 and a split table top 1 is mainly used for chemical experiments, the split laboratory bench 2 and the split table top 2 are mainly used for physical and electrical experiments, which are independent of each other and do not interfere with each other, each split laboratory bench can be adjusted according to specific course content to adapt to different experimental needs, and by separating different types of experiments and partitioning them, it is ensured that different experiments do not interfere with each other, thereby strengthening the protection of electrical equipment.

Description

Technical Field

[0001] The invention relates to the field of teaching tools, in particular to a teaching experiment table and a use method thereof. Background Art

[0002] Teaching lab benches are important equipment used in schools or educational institutions for various scientific experiments and demonstrations. They are usually designed to be multifunctional to meet the needs of different disciplines, such as physics, chemistry, biology, etc. Because the experimental instruments and equipment required for experiments in different disciplines are different, and the environment required for the experiments is also different, at the same time, the experimental instruments and equipment required for the experimental directions of each discipline are not universal. When the instruments and equipment required for different experimental directions are mixed and used, some safety factors need to be considered. For example, the instrument accuracy required for electrical experiments in physics is high, and it should be prevented from being damaged or destroyed by the heavy experimental equipment required in mechanical experiments, or from some liquids in chemical experiments entering the circuit components to cause short circuits, or from some corrosive liquids causing permanent damage to precision instruments. Therefore, in actual teaching, multiple laboratories are often set up, and each laboratory is equipped with a dedicated lab bench corresponding to different experimental directions to solve the above problems. However, this form of setting up laboratories separately not only takes up a lot of space, but also needs to be equipped with various different lab benches, resulting in a great waste of teaching resources.

[0003] The existing Chinese patent document with publication number CN109064854B proposes a laboratory bench for physical experiment teaching, which is composed of a table frame formed by setting two support bodies arranged parallel to each other and placed on the top of the two support bodies, and connecting them with a table top. The table frame is equipped with an electrical box placed between the two support bodies, the electrical box is placed on the right side of the table top, and the upper part of the electrical box is placed on the top of the table top; the support body is equipped with a slider that can slide vertically on the support body, and the slider is provided with a horizontal straight groove. The front and rear end surfaces of the electrical box are respectively provided with longitudinally arranged and coaxial rotating shafts, and the rotating shafts are placed in the straight groove; the straight groove is provided with a horizontally arranged first thrust spring placed on the right side of the rotating shaft, and the support body is equipped with a plurality of vertically arranged second thrust springs placed below the slider. The above-mentioned problem is solved by pressing and rotating the electrical box to complete the switching of the laboratory bench, but simple flipping may not necessarily provide good sealing, especially in a laboratory environment, water, chemical reagents or other contaminants may still enter the interior of the electrical box and affect the components.

[0004] Therefore, the present invention proposes a teaching experiment table and a method of using the same, which solves the problem that the teaching experiment table in the prior art may not provide good sealing by simply flipping, especially in a laboratory environment, water, chemical reagents or other contaminants may still enter the electrical box and affect the components. The deformable experiment table body structure is designed for partitioning, ensuring that different experiments do not interfere with each other, thereby strengthening the protection of electrical equipment. Summary of the invention

[0005] The object of the present invention is to provide a teaching experiment table and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a teaching laboratory bench, comprising a main laboratory bench, a main table top is fixedly installed on the upper surface of the main laboratory bench, a split laboratory bench component 1 is arranged on one side of the main laboratory bench, and a split laboratory bench component 2 is arranged on the other side of the main laboratory bench, a sliding guide rail is fixedly installed at the rear of the main laboratory bench, and sealed recovery grooves are symmetrically arranged on both sides of the lower surface of the main table top.

[0007] Preferably, the split lab bench component one includes a split lab bench one, a split table top one is fixedly installed on the top of the split lab bench one, a baffle strip one is fixedly installed on the upper surface of the split table top one, and the split lab bench component two includes a split lab bench two, a split table top two is fixedly installed on the top of the split lab bench two, a baffle strip two is fixedly installed on the upper surface of the split table top two, and the baffle strip one has the same structure as the baffle strip two.

[0008] Preferably, the sealing recovery groove is adapted to the size of the first and second baffle strips, a sealing plate is movably installed inside the sealing recovery groove, a rubber connecting column is fixedly installed in the middle of the upper surface of the sealing plate, the upper end of the rubber connecting column is fixedly connected to the lower surface of the sealing recovery groove, and card grooves adapted to the first baffle strip are symmetrically arranged on both sides of the lower surface of the sealing plate.

[0009] Preferably, a motor is fixedly installed in the middle part of the lower surface of the sliding guide rail, a sliding rack is slidably installed inside the sliding guide rail, two ends of the sliding rack are respectively fixedly connected to the side surfaces of split laboratory table two and split laboratory table one, a gear is fixedly installed on the output shaft of the motor, and the side surface of the gear is meshed with the side surface of the sliding rack.

[0010] Preferably, an integrated mounting platform is fixedly mounted on the lower surface of the split countertop one, a sink is fixedly mounted on the integrated mounting platform, a drain pipe is fixedly mounted on the bottom of the sink, a rotary faucet is provided on the other side of the split countertop one, and a water inlet pipe is fixedly mounted on the water inlet end of the rotary faucet.

[0011] Preferably, a splash shield is provided at the rear of the rotary faucet, and the splash shield is rotatably mounted on the inner side of the split test bench one, a rotating shaft is fixedly mounted on one end of the splash shield, and a rotating shaft sleeve matching the rotating shaft is provided on the inner wall of the split test bench one.

[0012] Preferably, a locking pin is hingedly installed on the side surface of the rotating shaft, a groove matching the rotating shaft is provided on the inner surface of the rotating shaft sleeve, a touch rod is provided on one side of the locking pin, a locking pin is movably installed on the inner side of the rotating shaft sleeve, a spring seat is provided on the side surface of the locking pin, and one end of the spring seat is fixedly connected to the side surface of the rotating shaft sleeve.

[0013] Preferably, a storage groove is provided inside the second split laboratory bench, a lifting seat is slidably installed inside the storage groove, a manual threaded rod is symmetrically rotatably installed on one side of the storage groove, the two groups of manual threaded rods are movably connected by a gear chain, and the side walls of the lifting seat are respectively connected to the outer surface of the manual threaded rod by threads.

[0014] Preferably, an electric control console is fixedly installed above the storage slot, a through slot compatible with the electric control console is opened on the surface of the split laboratory table two, a protective cover is rotatably installed above the split laboratory table two, the structure of the protective cover is the same as that of the splash guard plate, and a wire unsealing plate is provided on the side wall of the split laboratory table two.

[0015] The present invention also proposes a method for using a teaching experiment bench, comprising the following steps: step one, starting a motor according to the classification of the experiment, the motor working to drive the sliding rack to move through the gear, so that the split experiment bench one and the split experiment bench two are moved; step two, when the split experiment bench one is on display, flipping the rotary faucet and the splash guard so that the sink can be used, which is convenient for the teaching demonstration of chemical experiments, and after completion, flipping the rotary faucet and the splash guard in the opposite direction, and at the same time, starting the motor to drive the gear to rotate in the opposite direction, so that the split experiment bench one is moved and stored under the main table top, and the split experiment bench two is on display at this time; step three, when the split experiment bench two is on display, flipping the protective cover, and raising the lifting seat by rotating the manual threaded rod, so that the electric control console rises to the top of the split table top two, which is convenient for the experimental teaching operation demonstration, and after completion, the manual threaded rod is rotated in the opposite direction to store the electric control console into the storage slot, and the protective cover is also flipped and closed.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention designs a split laboratory table component 1 and a split laboratory table component 2 on both sides of the main laboratory table, wherein the main laboratory table can be used as a teaching operation table for ordinary experiments, and the split laboratory table component 1 and the split laboratory table component 2 form two split independent laboratory tables, which can be used as teaching operation tables for different experiments on both sides of the main laboratory table. The split laboratory table composed of the split laboratory table 1 and the split table top 1 is mainly used for chemical experiments, and the split laboratory table 2 and the split table top 2 are mainly used for physical and electrical experiments. They are independent of each other and do not interfere with each other. Each split laboratory table can be adjusted according to the specific course content to adapt to different experimental needs. By separating different types of experiments and zoning them, it is ensured that different experiments do not interfere with each other, the protection of electrical equipment is strengthened, and the problem of poor sealing of teaching laboratory tables in the prior art is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the expanded structure of the split test bench component 2 of the present invention; Figure 2 It is a schematic diagram of the structure of the split test bench component 2 of the present invention in the test state; Figure 3 It is a schematic diagram of the unfolded structure of a split test bench component of the present invention; Figure 4 It is a schematic diagram of the structure of the split test bench component of the present invention in the test state; Figure 5 It is a schematic diagram of the cross-sectional structure of the main table of the present invention; Figure 6 This is a schematic diagram of the internal structure of a split test bench of the present invention; Figure 7 It is a cross-sectional structural schematic diagram of a split test bench of the present invention; Figure 8 It is a schematic diagram of the splash shield structure of the present invention; Fig. 9 It is a schematic diagram of the structure after the rotating shaft and the rotating shaft sleeve of the present invention are locked; Fig.10 It is a schematic diagram of the second cross-sectional structure of the split test bench of the present invention; Fig.11 For the present invention Figure 5 A schematic diagram of the enlarged structure at point A; Fig.12 For the present invention Figure 5 The enlarged structural diagram at B; Fig.13 The present invention is a flowchart of the method of using the teaching experiment table.

[0018] In the figure: 1, main laboratory table; 11, main table top; 2, split laboratory table component 1; 21, split laboratory table 1; 22, split table top 1; 221, baffle bar 1; 23, integrated installation table; 24, sink; 241, drain pipe; 25, rotary faucet; 251, water inlet pipe; 26, splash guard; 261, shaft; 2611, locking pin; 2612, touch rod; 262, shaft sleeve; 2621, bayonet pin; 2 622. Spring seat; 3. Split test bench assembly 2; 31. Split test bench 2; 311. Wire disassembly plate; 32. Split table 2; 321. Baffle bar 2; 33. Protective cover; 34. Electric control panel; 35. Storage slot; 351. Lifting seat; 352. Manual threaded rod; 4. Sliding guide rail; 41. Motor; 42. Sliding rack; 43. Gear; 5. Sealed recovery slot; 51. Sealing plate; 511. Rubber connecting column. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] For example, see Figure 1 - Fig.13The present invention provides a technical solution: a teaching experiment table, comprising a main experiment table 1, a main table top 11 is fixedly installed on the upper surface of the main experiment table 1, a split experiment table component 2 is arranged on one side of the main experiment table 1, and a split experiment table component 3 is arranged on the other side of the main experiment table 1, a sliding guide rail 4 is fixedly installed at the rear of the main experiment table 1, and sealed recovery grooves 5 are symmetrically arranged on both sides of the lower surface of the main table top 11, the split experiment table component 2 includes a split experiment table 21, a split table top 22 is fixedly installed above the split experiment table 21, and a baffle strip 221 is fixedly installed on the upper surface of the split table top 22, and the split experiment table 21 is fixedly installed on the upper surface of the split experiment table 21. The table component 2 3 includes a split experimental table 2 31, a split table top 2 32 is fixedly installed above the split experimental table 2 31, a baffle strip 2 321 is fixedly installed on the upper surface of the split table top 2 32, the baffle strip 1 221 has the same structure as the baffle strip 2 321, the sealing recovery groove 5 is adapted in size to the baffle strip 1 221 and the baffle strip 2 321, a sealing plate 51 is movably installed inside the sealing recovery groove 5, a rubber connecting column 511 is fixedly installed in the middle of the upper surface of the sealing plate 51, the upper end of the rubber connecting column 511 is fixedly connected to the lower surface of the sealing recovery groove 5, and the lower surface of the sealing plate 51 is symmetrically provided with card slots adapted to the baffle strip 1 221 on both sides;In this embodiment, the main laboratory table 1 and the main table top 11 constitute a main laboratory operating table, which can be used as a teaching operating table for ordinary experiments, such as physical non-electrical experiments and biological observation experiments. The split laboratory table 1 21 and the split table top 1 22, and the split laboratory table 2 31 and the split table top 2 32 constitute two split and independent laboratory tables, which can be used as teaching operating tables for different experiments on both sides of the main laboratory table 1. The split laboratory table composed of the split laboratory table 1 21 and the split table top 1 22 is mainly used for chemical experiments, and the split laboratory table 2 31 and the split table top 2 32 are mainly used for physical electrical experiments. They are independent of each other and do not interfere with each other. Each split laboratory table can be adjusted according to the specific course content to adapt to different experimental needs. By separating different types of experiments, potential safety risks are reduced and safety is increased. For example, the impact of chemical leakage on electronic equipment, the baffle bar 1 221 mainly plays a role of blocking flow to prevent liquid splashing, and the baffle bar 2 321 mainly plays a role of preventing experimental instruments on the split table top 2 32 from rolling off When the split test bench 1 21 or the split test bench 2 31 is stored under the main test bench 1, the baffle strip 1 221 and the baffle strip 2 321 are just inserted into the sealing recovery groove 5, and at the same time, the upper part thereof will push into the grooves on both sides of the sealing plate 51, so that the middle part of the sealing plate 51 is deformed, and the rubber connecting column 511 is pulled out. At this time, the sealing plate 51 is inserted into the baffle strip 1 221 and the baffle strip 2 321, and cooperates with the baffle strip 1 221 and the baffle strip 2 321 to form a complete closed plate, which is conducive to the main table surface. The gap between the split table 11 and the split table top 1 22 and the split table top 2 32 is sealed and filled to prevent dust, liquid and other impurities from entering the split test bench 1 21 and the split test bench 2 31 to affect the experimental environment. In addition, during the storage process, the sealing plate 51 is engaged with the baffle strip 1 221 and the baffle strip 2 321 to provide an additional layer of physical protection, reducing the potential damage caused by external factors, reducing the impact of external factors on the interior of the test bench, and helping to extend the service life of the test bench and related equipment. ;

[0021] Embodiment 2, on the basis of embodiment 1, a motor 41 is fixedly installed in the middle of the lower surface of the sliding guide rail 4, a sliding rack 42 is slidably installed inside the sliding guide rail 4, and the two ends of the sliding rack 42 are respectively fixedly connected to the side surfaces of the split test bench 2 31 and the split test bench 1 21, and a gear 43 is fixedly installed on the output shaft of the motor 41, and the side surface of the gear 43 is meshed with the side surface of the sliding rack 42; in this embodiment, the sliding rack 42 connects the split test bench 2 31 and the split test bench 1 21, and the specific storage method of the split test bench 2 31 and the split test bench 1 21 is that the motor 41 drives the gear 43 to rotate when it works Turn, so that the sliding rack 42 slides inside the sliding guide rail 4, completing the movement and replacement of the split laboratory table 1 21 and the split laboratory table 2 31. When the split laboratory table 1 21 is stored in the main laboratory table 1, the split laboratory table 2 31 is unfolded, and when the split laboratory table 2 31 is stored in the main laboratory table 1, the split laboratory table 1 21 is unfolded. They are independent of each other and do not interfere with each other. One is activated and the other is stored, forming a partitioned and independent laboratory table. When the split laboratory table is stored, the entire laboratory table looks more neat and unified, which improves the overall appearance of the laboratory and reduces the impact of the laboratory table in use on the laboratory table on the other side.

[0022] Embodiment 3, on the basis of embodiment 2, the lower surface of the split table top 22 is fixedly installed with an integrated mounting platform 23, the integrated mounting platform 23 is fixedly installed with a sink 24, the bottom of the sink 24 is fixedly installed with a drain pipe 241, the other side of the split table top 22 is provided with a rotary faucet 25, the water inlet end of the rotary faucet 25 is fixedly installed with a water inlet pipe 251, the rear of the rotary faucet 25 is provided with a splash guard 26, the splash guard 26 is rotatably installed on the inner side of the split laboratory table 21, one end of the splash guard 26 is fixedly installed with a rotating shaft 261, and the inner wall of the split laboratory table 21 is provided with A rotating shaft sleeve 262 adapted to the rotating shaft 261, a locking pin 2611 is hingedly installed on the side surface of the rotating shaft 261, a card slot adapted to the rotating shaft 261 is provided on the inner surface of the rotating shaft sleeve 262, a touch rod 2612 is provided on one side of the locking pin 2611, a card pin 2621 is movably installed on the inner side of the rotating shaft sleeve 262, a spring seat 2622 is provided on the side surface of the card pin 2621, and one end of the spring seat 2622 is fixedly connected to the side surface of the rotating shaft sleeve 262; the split laboratory table 21 and the split table top 22 form a chemical laboratory table, and the integrated mounting table 23 is mainly used to install the water tank 24 and for rotating The storage of the rotary faucet 25, when the sink 24 and the drain pipe 241 are used for cleaning chemical experimental instruments and pouring liquids, the rotary faucet 25 is provided with a rotatable structure for easy storage. The water inlet pipe 251 and the rotating shaft 261 need to be connected to water pipes respectively when in use. The splash guard 26 not only seals the top of the integrated mounting platform 23 when stored, but also flips 90° to prevent liquid splashing at the rear when the rotary faucet 25 is flipped for use. When the splash guard 26 rotates 90°, the rotating shaft 261 rotates 90° inside the rotating shaft sleeve 262, and the locking pin 2611 is stuck in the rotating shaft The spring seat 2622 will deform and pull the locking pin 2611 to cancel the interlocking of the locking pin 2611. At this time, the splash guard 26 can be reversed to reset by rotating the splash guard 26 in the opposite direction, thereby sealing the top of the split table 22. The splash guard 26 can be reversed to reset the splash guard 26 in the opposite direction, thereby sealing the top of the split table 22. The structure is simple and effective.

[0023] Embodiment 4, on the basis of embodiment 3, a storage slot 35 is provided inside the split experimental table 2 31, a lifting seat 351 is slidably installed inside the storage slot 35, a manual threaded rod 352 is symmetrically rotatably installed on one side of the storage slot 35, two sets of manual threaded rods 352 are movably connected by a gear chain, the side walls of the lifting seat 351 are respectively connected to the outer surface of the manual threaded rod 352 by threads, an electric control table 34 is fixedly installed above the storage slot 35, and a through slot compatible with the electric control table 34 is opened on the surface of the split experimental table 2 31, and the split experimental table 2 31 A protective cover 33 is rotatably installed above the split table 31, and the structure of the protective cover 33 is the same as that of the splash shield 26. A wire unsealing plate 311 is provided on the side wall of the split experimental table 31. In the present embodiment, the storage groove 35 inside the split experimental table 31 mainly serves the purpose of storing the electric control table 34. The lifting seat 351 is raised by rotating the manual threaded rod 352, so that the electric control table 34 rises to the top of the split table top 32, which is convenient for experimental teaching operation demonstration. The structure of the protective cover 33 is the same as that of the splash shield 26, and it also provides closed protection for the electric control table 34 after storage.

[0024] Embodiment 5, based on embodiment 4, this embodiment further proposes a method for using a teaching experiment table, including the following steps: step 1, according to the classification of the experiment, start the motor 41, the motor 41 works to drive the sliding rack 42 to move through the gear 43, so that the split experiment table 1 21 and the split experiment table 2 31 move; step 2, when the split experiment table 1 21 is displayed, flip the rotary faucet 25 and the splash guard 26, so that the sink 24 can be used, which is convenient for the teaching demonstration of chemical experiments, and after completion, flip the rotary faucet 25 and the splash guard 26 in the opposite direction. The baffle 26, at the same time, the motor 41 is started to drive the gear 43 to rotate in the opposite direction, so that the split experimental table 1 21 is moved and stored under the main table 11, and the split experimental table 2 31 is displayed at this time; step three, when the split experimental table 2 31 is displayed, the protective cover 33 is flipped over, and the lifting seat 351 is raised by rotating the manual threaded rod 352, so that the electric control table 34 is raised to the top of the split table 2 32, which is convenient for experimental teaching operation demonstration. After the end, the manual threaded rod 352 is rotated in the opposite direction to store the electric control table 34 into the storage slot 35, and the protective cover 33 is also flipped over and closed.

[0025] Although 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. A teaching laboratory bench, comprising a main laboratory bench (1), wherein a main table top (11) is fixedly mounted on the upper surface of the main laboratory bench (1), characterized in that: A split laboratory bench component 1 (2) is arranged on one side of the main laboratory bench (1), and a split laboratory bench component 2 (3) is arranged on the other side of the main laboratory bench (1). A sliding guide rail (4) is fixedly installed at the rear of the main laboratory bench (1), and sealed recovery grooves (5) are symmetrically arranged on both sides of the lower surface of the main table top (11).

2. A teaching experiment table according to claim 1, characterized in that: The split test bench component 1 (2) comprises a split test bench 1 (21), a split table top 1 (22) being fixedly mounted above the split test bench 1 (21), a baffle strip 1 (221) being fixedly mounted on the upper surface of the split table top 1 (22), and the split test bench component 2 (3) comprises a split test bench 2 (31), a split table top 2 (32) being fixedly mounted above the split test bench 2 (31), a baffle strip 2 (321) being fixedly mounted on the upper surface of the split table top 2 (32), and the baffle strip 1 (221) and the baffle strip 2 (321) have the same structure.

3. A teaching experiment table according to claim 2, characterized in that: The sealing recovery groove (5) is adapted in size to the first baffle strip (221) and the second baffle strip (321); a sealing plate (51) is movably mounted inside the sealing recovery groove (5); a rubber connecting column (511) is fixedly mounted in the middle of the upper surface of the sealing plate (51); the upper end of the rubber connecting column (511) is fixedly connected to the lower surface of the sealing recovery groove (5); and slots adapted to the first baffle strip (221) are symmetrically arranged on both sides of the lower surface of the sealing plate (51).

4. A teaching experiment table according to claim 1, characterized in that: A motor (41) is fixedly mounted in the middle of the lower surface of the sliding guide rail (4), a sliding rack (42) is slidably mounted inside the sliding guide rail (4), two ends of the sliding rack (42) are respectively fixedly connected to the side surfaces of the second split test bench (31) and the first split test bench (21), a gear (43) is fixedly mounted on the output shaft of the motor (41), and the side surface of the gear (43) is meshed with the side surface of the sliding rack (42).

5. A teaching experiment table according to claim 2, characterized in that: An integrated mounting platform (23) is fixedly mounted on the lower surface of the split table top (22); a water tank (24) is fixedly mounted on the integrated mounting platform (23); a drainage pipe (241) is fixedly mounted on the bottom of the water tank (24); a rotary faucet (25) is provided on the other side of the split table top (22); a water inlet pipe (251) is fixedly mounted on the water inlet end of the rotary faucet (25).

6. A teaching experiment table according to claim 5, characterized in that: A splash shield (26) is arranged behind the rotary faucet (25), and the splash shield (26) is rotatably mounted on the inner side of the split experimental table (21). A rotating shaft (261) is fixedly mounted on one end of the splash shield (26), and a rotating shaft sleeve (262) adapted to the rotating shaft (261) is arranged on the inner wall of the split experimental table (21).

7. A teaching experiment table according to claim 6, characterized in that: A locking pin (2611) is hingedly mounted on the side surface of the rotating shaft (261); a slot matching the rotating shaft (261) is provided on the inner surface of the rotating shaft sleeve (262); a contact rod (2612) is provided on one side of the locking pin (2611); a locking pin (2621) is movably mounted on the inner side of the rotating shaft sleeve (262); a spring seat (2622) is provided on the side surface of the locking pin (2621); one end of the spring seat (2622) is fixedly connected to the side surface of the rotating shaft sleeve (262).

8. A teaching experiment table according to claim 2, characterized in that: The second split experimental table (31) is provided with a storage groove (35) inside, a lifting seat (351) is slidably installed inside the storage groove (35), a manual threaded rod (352) is symmetrically rotatably installed on one side of the storage groove (35), two groups of the manual threaded rods (352) are movably connected via a gear chain, and the side walls of the lifting seat (351) are respectively connected to the outer surface of the manual threaded rod (352) via threads.

9. A teaching experiment table according to claim 8, characterized in that: An electric control console (34) is fixedly mounted above the storage slot (35); a through slot matching the electric control console (34) is provided on the surface of the second split test bench (31); a protective cover (33) is rotatably mounted above the second split test bench (31); the structure of the protective cover (33) is the same as that of the splash guard (26); and a wire unsealing plate (311) is provided on the side wall of the second split test bench (31).

10. A method for using a teaching laboratory bench, implemented according to the teaching laboratory bench according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: step 1, starting a motor (41) according to the classification of the experiment, the motor (41) working to drive the sliding rack (42) to move through the gear (43), so that the split experimental table 1 (21) and the split experimental table 2 (31) move; step 2, when the split experimental table 1 (21) is displayed, flipping the rotary faucet (25) and the splash guard (26) so that the sink (24) can be used, which is convenient for teaching and demonstrating chemical experiments; after completion, flipping the rotary faucet (25) and the splash guard (26) in the opposite direction, and at the same time, starting the motor (41) to drive the gear (43) to move. The wheel (43) rotates in the reverse direction, so that the split experimental table (21) is moved and stored under the main table (11), and the split experimental table (31) is displayed at this time; step three, when the split experimental table (31) is displayed, the protective cover (33) is turned over, and the lifting seat (351) is raised by rotating the manual threaded rod (352), so that the electric control table (34) is raised to the top of the split table (32), which is convenient for experimental teaching operation demonstration. After the end, the manual threaded rod (352) is rotated in the reverse direction to store the electric control table (34) in the storage groove (35), and the protective cover (33) is also turned over and closed.

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