A laboratory teaching device

Abstract

The utility model discloses a laboratory teaching device, which relates to the technical field of laboratory teaching equipment, including a laboratory table and a support frame, wherein one side of the laboratory table and the support frame are hinged, and the other side is provided with a table top tilting component, a test area is provided in the middle of the laboratory table, and a partition plate is movably connected around the test area, and a partition storage box is provided on the support frame, and an exhaust gas discharge component is also provided, including an air collecting mechanism and a suction fan arranged on the laboratory table, wherein the exhaust end of the suction fan is connected to the outside through a pipeline, and the air inlet end of the suction fan is connected to the air collecting mechanism through a pipeline, and a table top cleaning component is provided on the laboratory table, and the table top cleaning component includes a rubber scraper and a pulling component. When it is necessary to clean the residual liquid waste on the table top, the laboratory table top is tilted from one end through the table top tilting component, and the table top is cleaned through the table top cleaning component, that is, the rubber scraper is driven by the pulling component to continuously move along the table top to scrape off the residual waste liquid residue on the laboratory table top, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory teaching equipment. Background Art

[0002] Teaching that only focuses on imparting chemical knowledge and technology is a one-sided chemical education. Comprehensive chemical education requires that chemical teaching not only imparts chemical knowledge and technology, but also trains scientific methods and thinking, and cultivates scientific spirit and morality. Chemical experiment class is one of the most effective teaching forms for implementing comprehensive chemical education. The teaching test bench is one of the commonly used equipment in chemical experiments. The existing teaching test bench has a simple structure and single function. It is difficult to clean up the wastewater generated by the experiment in time. The cleaning and management of the entire equipment is troublesome and labor-intensive. It affects the experience of teaching experiments. Utility Model Content

[0003] The purpose of the utility model is to provide a laboratory teaching device to solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0005] A laboratory teaching device comprises a laboratory table and a support frame, wherein one side of the laboratory table and the support frame are hinged, and the other side is provided with a table top lifting component, a test area is provided in the middle of the laboratory table, and partition plates are movably connected around the test area, a partition storage box is provided on the support frame, and an exhaust gas emission component is also provided, the exhaust gas emission component comprises an air collecting mechanism arranged on the laboratory table, and also comprises a suction fan arranged on the support frame, the exhaust end of the suction fan is connected to the outside through a pipeline, and the air inlet end of the suction fan is connected to the air collecting mechanism through a pipeline, a table top cleaning component is provided on the laboratory table, and the table top cleaning component comprises a rubber scraper on the laboratory table away from the hinged side of the laboratory table, and also comprises a pulling component for causing the rubber scraper to move along the laboratory table.

[0006] Through the above scheme, a test area is set up, and a partition plate is movably connected around the test area to facilitate the division of the test area and improve the utilization efficiency of the test table. When the experiment is carried out, the suction fan can be turned on, and the experimental exhaust gas can be discharged through the air collecting mechanism. When the experiment is completed, when it is necessary to clean the residual liquid waste on the table, the table can be lifted from one end through the table lifting component, and the table can be cleaned through the table cleaning component, that is, the rubber scraper is driven by the pulling component to continuously move along the table to scrape off the residual waste liquid residue on the experimental table, so as to keep the table clean, facilitate cleaning, and simple operation.

[0007] Furthermore, the air collecting mechanism includes a shunt pipe arranged on the support frame, the shunt pipe is connected to the air inlet end of the suction fan, a plurality of universal hoses are arranged on the shunt pipe, and an exhaust hood is arranged at the end of the universal hose.

[0008] Through the above solution, the universal hose is used in conjunction with the exhaust hood to facilitate flexible adjustment of the position of the exhaust hood, and the position of the exhaust hood on the experimental table can be flexibly adjusted according to experimental requirements, thereby enhancing the practicability of the device.

[0009] Furthermore, the partition plate is provided with a hose slot, and the hose slot is adapted to the universal hose.

[0010] Through the above scheme, a hose slot is provided, which facilitates the fixing of the universal hose when conducting experiments in the partition plate, thereby facilitating the extraction of exhaust gas.

[0011] Furthermore, the pulling assembly includes traction ropes arranged on both sides of the rubber scraper, and a plurality of redirecting rings are provided on the experimental table and the support frame. The traction rope passes through the redirecting ring and extends toward the hinged edge of the experimental table. The two traction ropes converge at the support frame and are provided with pull rings at the ends. A reset spring is provided on the side of the experimental table away from the hinged edge, and the reset spring is connected to the rubber scraper.

[0012] Through the above scheme, when it is necessary to clean the experimental table, the pull ring is pulled to drive the traction rope, the traction rope is redirected by the redirection ring and pulled downward along both sides of the rubber scraper at the same time, prompting the rubber scraper to move to the side of the hinged edge of the table, driving the table to be cleaned, and then the pull ring is released, and the rubber scraper is reset upward driven by the reset spring, and this reciprocating process is repeated to complete the cleaning of the table, with a large cleaning range and high cleaning efficiency, saving labor and reducing cleaning time.

[0013] Furthermore, the support frame is provided with liquid storage barrels on both sides of the hinge of the experimental table, the liquid storage barrels and the support frame are fixed by a card slot, and the experimental table is provided with a drainage trough, and the drainage trough and the liquid storage barrel are connected by a hose.

[0014] Through the above scheme, a liquid storage box is set up, and the residues and residual liquid scraped by the rubber scraper eventually enter the drainage trough, and flow into the liquid storage barrel through the drainage trough for unified storage, which is convenient for later cleaning of the countertop.

[0015] Furthermore, a jet nozzle is provided on the experimental table, and the jet nozzle is connected to an external water source through a hose.

[0016] Through the above scheme, the jet nozzle is set to spray water on the experimental table, which is convenient for the later matching of the drainage trough box and the rubber scraper to clean the experimental table.

[0017] Furthermore, the table top lifting assembly includes a hinged connecting rod arranged on the side of the support frame away from the experimental table top, and the support frame is provided with a plurality of positioning slots, and the positioning slots are evenly distributed below the moving track of the end of the hinged connecting rod. One end of the hinged connecting rod is hinged to the support frame, and the other end moves along the positioning slots.

[0018] Through the above scheme, the experimental table is lifted up, and by inserting the hinged connecting rod into different positioning slots, different unfolding angles of the hinged connecting rod can be achieved, thereby adjusting the lifting height of the experimental table, which is convenient for flexible adjustment according to needs.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The utility model has a simple structure, a test area is set, and a partition plate is movably connected around the test area, which is convenient for dividing the test area and improving the utilization efficiency of the test table. When the experiment is carried out, the suction fan can be turned on, and the experimental waste gas can be discharged through the air collection mechanism. When the experiment is completed, when it is necessary to clean the residual liquid waste on the table, the table can be lifted from one end through the table lifting component, and the table can be cleaned through the table cleaning component, that is, the rubber scraper is driven by the pulling component to continuously move along the table to scrape off the residual waste liquid residue on the experimental table, so as to keep the table clean, facilitate cleaning, and be simple to operate;

[0021] 2. When the experimental table needs to be cleaned, pull the pull ring to drive the traction rope. The traction rope changes direction from the redirection ring and is pulled downward along both sides of the rubber scraper at the same time, prompting the rubber scraper to move to the side of the hinged edge of the table to drive the cleaning of the table. Then release the pull ring, and the rubber scraper will reset upward driven by the reset spring. This reciprocating process completes the cleaning of the table. The cleaning range is large, the cleaning efficiency is high, labor is saved, and the cleaning time is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure numerals: 11. laboratory table; 12. support frame; 13. suction fan; 14. rubber scraper; 15. test area; 16. partition plate; 17. partition storage box; 18. hinged connecting rod; 19. positioning slot; 20. diverter pipe; 21. universal hose; 22. exhaust hood; 23. hose slot; 24. traction rope; 25. redirection ring; 26. pull ring; 27. reset spring; 28. liquid storage barrel; 29. ​​drain tank; 30. jet nozzle. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on 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.

[0026] Example 1

[0027] like Figure 1 As shown, this embodiment provides a laboratory teaching device, including a laboratory table 11 and a support frame 12, wherein the laboratory table 11 is hinged to the support frame 12 on one side, and a table lifting component is provided on the other side, and an exhaust gas discharge component is also provided, wherein the exhaust gas discharge component includes an air collecting mechanism arranged on the laboratory table 11, and also includes a suction fan 13 arranged on the support frame 12, wherein the exhaust end of the suction fan 13 is connected to the outside through a pipeline, and the air inlet end of the suction fan 13 is connected to the air collecting mechanism through a pipeline, and a table cleaning component is provided on the laboratory table 11, wherein the table cleaning component includes a rubber scraper 14 of the laboratory table 11 away from the hinged side of the laboratory table 11, and also includes a pulling component for causing the rubber scraper 14 to move along the laboratory table 11.

[0028] Reference Figure 1 A test area 15 is provided in the middle of the test bench, and partition plates 16 are movably connected around the test area 15 . A partition storage box 17 is provided on the support frame 12 .

[0029] Therefore, a test area 15 is set up, and a partition plate 16 is movably connected around the test area 15 to facilitate the division of the experimental area and improve the utilization efficiency of the experimental table. When conducting an experiment, the suction fan 13 can be turned on, and the experimental exhaust gas can be discharged through the air collecting mechanism. When the experiment is completed, when it is necessary to clean the residual liquid waste on the table, the table lifting component is used to lift the experimental table 11 from one end, and the table is cleaned by the table cleaning component, that is, the rubber scraper 14 is driven by the pulling component to continuously move along the table, and the residual waste liquid residue on the experimental table 11 is scraped off, so that the table is kept clean, convenient for cleaning, and simple to operate.

[0030] Reference Figure 1The table top tilting assembly includes a hinged connecting rod 18 disposed on the side of the support frame 12 away from the experimental table top 11. The support frame 12 is provided with a plurality of positioning slots 19, and the positioning slots 19 are evenly distributed below the moving track of the end of the hinged connecting rod 18. One end of the hinged connecting rod 18 is hinged to the support frame 12, and the other end moves along the positioning slots 19. The experimental table top 11 is lifted, and different unfolding angles of the hinged connecting rod 18 are achieved by inserting the hinged connecting rod 18 into different positioning slots 19, thereby adjusting the tilting height of the experimental table top 11, which is convenient for flexible adjustment according to needs.

[0031] Reference Figure 1 The air collecting mechanism includes a shunt pipe 20 disposed on the support frame 12, the shunt pipe 20 is connected to the air inlet end of the suction fan 13, and a plurality of universal hoses 21 are disposed on the shunt pipe 20. In this embodiment, the metal universal hoses 21 are disposed, and an exhaust hood 22 is disposed at the end of the universal hose 21. A hose slot 23 is disposed on the partition plate 16, and the hose slot 23 is adapted to the universal hose 21. By cooperating with the exhaust hood 22, the position of the exhaust hood 22 can be adjusted flexibly, and the position of the exhaust hood 22 on the experimental table 11 can be adjusted flexibly according to experimental requirements, thereby enhancing the practicality of the device. The hose slot 23 is disposed to facilitate fixing the universal hose 21 when conducting experiments in the partition plate 16, so as to facilitate the extraction of exhaust gas.

[0032] Reference Figure 1 The pulling assembly includes a traction rope 24 arranged on both sides of the rubber scraper 14. A plurality of redirecting rings 25 are arranged on the experimental table 11 and the support frame 12. The traction rope 24 passes through the redirecting ring 25 and extends toward the hinged edge of the experimental table 11. The two traction ropes 24 converge at the support frame 12 and are provided with a pull ring 26 at the end. A reset spring 27 is provided on the side of the experimental table 11 away from the hinged edge, and the reset spring 27 is connected to the rubber scraper 14. When the experimental table 11 needs to be cleaned, the pull ring 26 is pulled to drive the traction rope 24, and the traction rope 24 is redirected by the redirection ring 25 and pulled downward along both sides of the rubber scraper 14 at the same time, prompting the rubber scraper 14 to move toward the hinged side of the table, driving the table to be cleaned, and then the pull ring 26 is released, and the rubber scraper 14 is reset upward under the drive of the reset spring 27, and this reciprocating movement is completed to complete the cleaning of the table, with a large cleaning range and high cleaning efficiency, saving labor and reducing cleaning time.

[0033] Reference Figure 1The support frame 12 is provided with liquid storage barrels 28 on both sides of the hinge of the experimental table 11. The liquid storage barrel 28 is fixed to the support frame 12 by a card slot. The experimental table 11 is provided with a drainage trough 29. The drainage trough 29 and the liquid storage barrel 28 are connected by a hose. The experimental table 11 is provided with a jet nozzle 30, and the jet nozzle 30 is connected to an external water source through a hose. A liquid storage box is set, and the residues and residual liquid scraped by the rubber scraper 14 eventually enter the drainage trough 29, and flow into the liquid storage barrel 28 through the drainage trough 29 for unified storage, which is convenient for later cleaning of the table. The jet nozzle 30 is convenient for spraying water on the experimental table 11, which is convenient for later matching with the drainage trough 29 and the rubber scraper 14 to clean the experimental table 11.

[0034] Implementation principle: The utility model has a simple structure, a test area 15 is set, and a partition plate 16 is movably connected around the test area 15, which is convenient for dividing the experimental area and improving the utilization efficiency of the experimental table. When conducting an experiment, the suction fan 13 can be turned on, and the experimental exhaust gas can be discharged through the air collecting mechanism. When the experiment is completed, when it is necessary to clean the residual liquid waste on the table, the table lifting component is used to lift the experimental table 11 from one end, and the table is cleaned by the table cleaning component, that is, the rubber scraper 14 is driven by the pulling component to continuously move along the table, and the residual waste liquid residue on the experimental table 11 is scraped off, so that the table is kept clean, convenient for cleaning, and simple to operate.

Claims

1. A laboratory teaching device, comprising a laboratory table (11) and a support frame (12), characterized in that: The experimental table (11) is hinged to the support frame (12) on one side, and a table top lifting component is provided on the other side. A test area (15) is provided in the middle of the experimental table, and a partition plate (16) is movably connected around the test area (15). A partition storage box (17) is provided on the support frame (12), and an exhaust gas emission component is also provided. The exhaust gas emission component includes an air collecting mechanism provided on the experimental table (11), and also includes a suction fan (13) provided on the support frame (12). The exhaust end of the suction fan (13) is connected to the outside through a pipeline, and the intake end of the suction fan (13) is connected to the air collecting mechanism through a pipeline. A table top cleaning component is provided on the experimental table (11), and the table top cleaning component includes a rubber scraper (14) on the side of the experimental table (11) away from the hinge of the experimental table (11), and also includes a pulling component for causing the rubber scraper (14) to move along the experimental table (11).

2. A laboratory teaching device according to claim 1, characterized in that: The air collecting mechanism comprises a shunt pipe (20) arranged on the support frame (12), the shunt pipe (20) being connected to the air inlet end of the suction fan (13), a plurality of universal hoses (21) being arranged on the shunt pipe (20), and an exhaust hood (22) being arranged at the end of the universal hose (21).

3. A laboratory teaching device according to claim 2, characterized in that: The partition plate (16) is provided with a hose clamping groove (23), and the hose clamping groove (23) is adapted to the universal hose (21).

4. A laboratory teaching device according to claim 1, characterized in that: The pulling assembly comprises traction ropes (24) arranged on both sides of the rubber scraper (14); a plurality of redirecting rings (25) are arranged on the experimental table (11) and the support frame (12); the traction rope (24) passes through the redirecting ring (25) and extends toward the hinged edge of the experimental table (11); two traction ropes (24) converge at the support frame (12) and are provided with a pull ring (26) at the end; a return spring (27) is arranged on the side of the experimental table (11) away from the hinged edge; the return spring (27) is connected to the rubber scraper (14).

5. A laboratory teaching device according to claim 4, characterized in that: The support frame (12) is provided with liquid storage barrels (28) on both sides of the hinged part of the experimental table (11); the liquid storage barrel (28) and the support frame (12) are fixed by means of a clamping slot; a liquid drainage groove (29) is provided on the experimental table (11); the liquid drainage groove (29) and the liquid storage barrel (28) are connected by means of a hose.

6. A laboratory teaching device according to claim 5, characterized in that: A jet nozzle (30) is provided on the experimental table (11), and the jet nozzle (30) is connected to an external water source through a hose.

7. A laboratory teaching device according to claim 1, characterized in that: The table top lifting assembly comprises a hinged connecting rod (18) arranged on a side of the support frame (12) away from the experimental table top (11); the support frame (12) is provided with a plurality of positioning slots (19); the positioning slots (19) are evenly distributed below the moving track of the end of the hinged connecting rod (18); one end of the hinged connecting rod (18) is hinged to the support frame (12), and the other end moves along the positioning slots (19).

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