Experiment table with protection function for chemical experiment

Abstract

The utility model discloses an experiment table with protection for chemical experiments, which relates to the technical field of safety protection and comprises a table frame, a reserved inner groove is formed in the top of the table frame, a moving plate is arranged in the reserved inner groove, and a pneumatic cylinder and a telescopic rod are fixedly mounted between the moving plate and the table frame. A flow guide box body is fixedly embedded in the top of the table frame, a plurality of small air exhaust holes are formed in the flow guide box body, and the flow guide box body is communicated with an air exhaust pump; an air extracting pump extracts air from the interior of the flow guide box body through a connecting pipeline, a combiner box body and two air extracting pipelines, and a plurality of small air extracting holes form a negative pressure area at the top of an inner cavity of the reserved inner groove when extracting air from the interior of the reserved inner groove, so that air generated by a chemical experiment in the reserved inner groove is prevented from escaping to the periphery of the table frame; and a user is prevented from inhaling gas generated by an experiment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety protection, specifically is with the chemical experiment experimental table of protection. BACKGROUND

[0002] Chemical experiment operating platform is applied to the teaching device of chemical experiment class, can demonstrate a series of chemical reaction platform to students on chemical experiment operating platform, along with the spread of chemical education, the market has appeared various experiment table;

[0003] For example, the prior art patent application No. 202320194701.8 relates to the technical field of chemical teaching equipment, a chemical teaching experiment table, including support table, the upper surface of the support table is fixedly connected with the connecting block, the upper surface of the connecting block is respectively provided with a plurality of first test tube placing grooves and a plurality of first utensil placing grooves, the rear end of the upper surface of the support table is provided with a placing groove, the two sides of the inside of the support table are provided with installation cavities, the inner bottom surface of the installation cavity away from the connecting block on one side is fixedly connected with a servo motor, and the output end of the servo motor is fixedly connected with a threaded rod.

[0004] Taking the above experiment table as an example, when some chemical experiments are carried out, due to the single structure and function of the experiment table, harmful gas generated in the chemical experiment process cannot be effectively constrained, and the safety of the user relies on the protective device worn by the user, but the harmful gas emitted into the laboratory still threatens the safety of the user. UTILITY MODEL CONTENT

[0005] The utility model aims at providing the chemical experiment experimental table with protection to solve the problem that the experiment table structure function is single, harmful gas cannot be effectively constrained, and harmful gas emitted into the laboratory still threatens the safety of the user in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: the chemical experiment experimental table with protection, including table frame, the top of the table frame is provided with a reserved inner groove, the inner part of the reserved inner groove is provided with a moving plate, the moving plate and the table frame are fixedly installed with a pneumatic cylinder and a telescopic rod, the top of the table frame is fixedly embedded with a flow guide box body, a plurality of air extraction small holes are formed in the inner part of the flow guide box body, the flow guide box body is connected with an air extraction pump, and a purification structure is installed at the air outlet end of the air extraction pump.

[0007] Preferably, the pneumatic cylinder and the telescopic rod are fixedly installed on the bottom of the moving plate, the outer wall of the moving plate is in contact with the table frame, and two door bodies are installed on the front side of the inner cavity of the table frame.

[0008] Preferably, the flow guide box is fixedly connected with an exhaust pipe at both ends, one end of the exhaust pipe extends into the table frame and is fixedly connected with the table frame, and a flow collecting box is fixedly connected between the two exhaust pipes.

[0009] Preferably, the flow collecting box is fixedly connected with a connecting pipe at the bottom, and the connecting pipe is fixedly installed at the air inlet end of the air pump.

[0010] Preferably, the purification structure comprises an exhaust elbow fixedly installed at the air outlet end of the air pump, an exhaust box fixedly installed at one end of the exhaust elbow, and a mesh plate fixedly installed at one side of the connecting pipe, the mesh plate enables the inside of the table frame to exchange air with the outside, and ensures normal air pressure inside the table frame.

[0011] Preferably, the exhaust box is fixedly installed inside the table frame, a flow guide box is inserted into the exhaust box, and a filter screen, an activated carbon plate one and an activated carbon plate two are fixedly installed in the flow guide box from the position close to the exhaust elbow to the position away from the exhaust elbow.

[0012] Preferably, the exhaust box is provided with a material blocking plate at one end, a connecting shaft is rotatably arranged at one side of the material blocking plate, a fixed horizontal plate is fixedly connected between one end of the connecting shaft and the exhaust box, a plurality of supporting short rods are fixedly connected at one side of the bottom of the fixed horizontal plate, the supporting short rods are arranged at the bottom of the material blocking plate, and the plurality of supporting short rods support the material blocking plate at the bottom of the material blocking plate, so that the material blocking plate is horizontally arranged at one end of the exhaust box to limit the flow guide box.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、When the chemical experiment in the reserved inner groove produces gas, the air pump works to pump air, the air pump pumps air from the inside of the flow guide box through the connecting pipe, the flow collecting box and the two exhaust pipes, the plurality of air pumping holes arranged in the flow guide box are distributed at a plurality of positions on the top of the inner cavity of the reserved inner groove, so that a negative pressure area is formed on the top of the inner cavity of the reserved inner groove when the plurality of air pumping holes pump air from the inside of the reserved inner groove, the gas produced by the chemical experiment in the reserved inner groove is prevented from escaping to the surrounding of the table frame, and the user is protected.

[0015] 2、When the user operates the experiment of boiling, foaming or even explosion on the desktop of the laboratory, the air pressure cylinder works to shrink to drive the moving plate and the experimental instrument to move downward, the chemical reaction is carried out in the reserved inner groove, the splashing produced by the chemical experiment is blocked and limited, the user is prevented from being hurt, and the safety hazard of the user in the dangerous experiment is reduced.

[0016] 3, when the application is used, the filter screen filters the gas discharged into the exhaust tank by the exhaust elbow of the air pump, adsorbs and removes large particle impurities in the gas, and then the gas flow is discharged into the flow guide box after passing through the activated carbon plate one and the activated carbon plate two, the activated carbon plate one and the activated carbon plate two adsorb harmful substances in the gas, reduce environmental pollution caused by chemical experiments, and reduce the safety hazard of the user operating near the table frame. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure diagram of the utility model;

[0018] Figure 2 It is a structure diagram of the utility model motion plate;

[0019] Figure 3 It is a structure diagram of the utility model table frame;

[0020] Figure 4 It is a structure diagram of the utility model air extraction pipeline;

[0021] Figure 5 It is a structure diagram of the utility model material baffle.

[0022] Marked number in drawing: 1, table frame; 2, door body; 3, reserved inner groove; 4, motion plate; 5, pneumatic cylinder; 6, telescopic rod; 7, flow guide box; 8, air extraction small hole; 9, air extraction pipeline; 10, flow collection box; 11, connecting pipeline; 12, air pump; 13, exhaust elbow; 14, exhaust tank; 15, flow guide box; 16, filter screen; 17, activated carbon plate one; 18, activated carbon plate two; 19, material baffle; 20, fixed horizontal plate; 21, connecting shaft; 22, support short rod; 23, screen plate. DETAILED DESCRIPTION

[0023] 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 only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Embodiment: as Figures 1-5The utility model provides a chemical experiment with the technical scheme of the experiment table with protection, the chemical experiment with the experiment table with protection, including table frame 1, the top of table frame 1 is set up with reservation inner groove 3, reservation inner groove 3 inside is provided with motion plate 4, fixedly installed with pneumatic cylinder 5 and telescopic link 6 between motion plate 4 and table frame 1, the top of table frame 1 is fixedly embedded with flow guide box body 7, a plurality of suction orifices 8 are set up in flow guide box body 7, flow guide box body 7 is communicated with suction pump 12, and suction pump 12 exhaust end is installed with purification structure, both ends of flow guide box body 7 are fixedly communicated with suction duct 9, and suction duct 9 one end extends to the inside of table frame 1 and is fixedly connected with table frame 1, and two suction ducts 9 are fixedly connected with the confluence box body 10 between them;The bottom of confluence box body 10 is fixedly connected with connecting duct 11, and connecting duct 11 is fixedly installed in suction pump 12 gas inlet end.

[0025] Specifically, example one:

[0026] The top of table frame 1 is set up with reservation inner groove 3, and reservation inner groove 3 is all sheltered and provides an operating space, and motion plate 4 is set up in reservation inner groove 3, and pneumatic cylinder 5 and telescopic link 6 are fixedly installed between motion plate 4 and table frame 1, and only the pneumatic cylinder 5 and telescopic link 6 of up-down telescopic are fixedly installed in the bottom two sides of motion plate 4, and the outer wall of motion plate 4 is in contact with table frame 1, so that motion plate 4 can only move up and down in reservation inner groove 3;

[0027] Control pneumatic cylinder 5 and work to push motion plate 4 and move up, so that the top surface of motion plate 4 is flush with the top surface of table frame 1, at this time, motion plate 4 and table frame 1 form a table top, and the user can operate on the table top;When the experiment such as boiling, foaming or even explosion on the table top is operated, control pneumatic cylinder 5 and work to retract to drive motion plate 4 and experimental apparatus to move down, so that chemical reaction is carried out in reservation inner groove 3, the splashing generated by chemical experiment is blocked and limited, the user is prevented from being hurt, and the security risk of the user to carry out dangerous experiment is reduced.

[0028] Example two:

[0029] When the chemical experiment in the reserved inner groove 3 produces gas, the exhaust pump 12 fixedly installed in the control table frame 1 is controlled to work to exhaust air. Since the two ends of the flow guide box 7 fixedly embedded on the top of the table frame 1 are fixedly communicated with the exhaust duct 9, one end of the exhaust duct 9 arranged in L shape extends into the table frame 1 and is fixedly connected with the table frame 1, the flow collecting box 10 is fixedly communicated between the two exhaust ducts 9, and the connecting duct 11 fixedly connected with the bottom of the flow collecting box 10 is fixedly installed on the air inlet end of the exhaust pump 12, so that the working exhaust pump 12 exhausts air from the inside of the flow guide box 7 through the connecting duct 11, the flow collecting box 10 and the two exhaust ducts 9, and the plurality of air exhaust small holes 8 opened in the flow guide box 7 are distributed on a plurality of positions on the top of the inner cavity of the reserved inner groove 3, so that the plurality of air exhaust small holes 8 exhaust air from the inside of the reserved inner groove 3 to form a negative pressure area on the top of the inner cavity of the reserved inner groove 3, avoiding the escape of the gas generated by the chemical experiment in the reserved inner groove 3 to the surroundings of the table frame 1, avoiding the user inhaling the gas generated by the experiment, and providing protection for the user.

[0030] Example three:

[0031] The exhaust elbow 13 is fixedly installed on the air outlet end of the exhaust pump 12, the exhaust box 14 fixedly installed on one end of the exhaust elbow 13 is fixedly installed in the table frame 1, the square flow guide box 15 is inserted into the square exhaust box 14, and the filter screen 16, the activated carbon plate one 17 and the activated carbon plate two 18 are fixedly installed in the flow guide box 15 from the position close to the exhaust elbow 13 to the position away from the exhaust elbow 13. The filter screen 16 filters the gas discharged into the exhaust box 14 through the exhaust elbow 13 of the exhaust pump 12, adsorbs and removes large particle impurities in the gas, and then the gas flow is discharged from the inside of the flow guide box 15 after passing through the activated carbon plate one 17 and the activated carbon plate two 18. The activated carbon plate one 17 and the activated carbon plate two 18 adsorb harmful substances in the gas, reduce environmental pollution caused by chemical experiments, and reduce the safety hazards of the user operating near the table frame 1.

[0032] In addition, the mesh plate 23 fixedly installed on one side of the connecting duct 11 enables the inside of the table frame 1 to exchange air with the outside, ensuring the normal air pressure in the table frame 1.

[0033] The material blocking plate 19 is rotatably arranged at one end of the exhaust box 14, one end of the connecting shaft 21 is fixedly connected with the exhaust box 14, and the fixed transverse plate 20 is fixedly connected between the other end of the connecting shaft 21 and the exhaust box 14, so that the material blocking plate 19 can be rotated away from one end of the exhaust box 14, the two door bodies 2 installed at the front side of the inner cavity of the table frame 1 are operated to be opened, then the material blocking plate 19 is rotated away from one end of the exhaust box 14, the flow guide box 15 can be taken out from the inside of the exhaust box 14, and the filter screen 16, the active carbon plate one 17 and the active carbon plate two 18 can be replaced; after the material blocking plate 19 is operated to be rotated to one end of the exhaust box 14, the plurality of supporting short rods 22 fixedly connected at the bottom of one side of the fixed transverse plate 20 are located at the bottom of the material blocking plate 19 and support the material blocking plate 19, so that the material blocking plate 19 is transversely arranged at one end of the exhaust box 14 and limits the flow guide box 15, and the flow guide box 15 is guaranteed to stay in the inside of the exhaust box 14.

[0034] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A chemical laboratory bench with protection, comprising a table frame (1), characterized in that: The top of the table frame (1) is provided with a reserved inner groove (3), the inner part of the reserved inner groove (3) is provided with a moving plate (4), the moving plate (4) and the table frame (1) are fixedly installed with an air cylinder (5) and a telescopic rod (6), the top of the table frame (1) is fixedly embedded with a flow guide box (7), a plurality of air extraction small holes (8) are formed in the flow guide box (7), the flow guide box (7) is communicated with an air extraction pump (12), and the air extraction pump (12) is provided with a purification structure.

2. The chemical experiment table with protection according to claim 1, characterized in that: The air cylinder (5) and the telescopic rod (6) are fixedly installed on the bottom of the moving plate (4), the outer wall of the moving plate (4) is in contact with the table frame (1), and the front side of the inner cavity of the table frame (1) is provided with two door bodies (2).

3. The chemical experiment table with protection according to claim 1, characterized in that: The flow guide box (7) is fixedly communicated with an air extraction pipeline (9) at both ends, one end of the air extraction pipeline (9) extends into the table frame (1) and is fixedly connected with the table frame (1), and the two air extraction pipelines (9) are fixedly connected with a confluence box (10).

4. The chemical experiment table with protection according to claim 3, characterized in that: The confluence box (10) is fixedly connected with a connecting pipeline (11), and the connecting pipeline (11) is fixedly installed on the air inlet end of the air extraction pump (12).

5. The chemical experiment table with protection according to claim 1, characterized in that: The purification structure comprises an exhaust elbow (13) fixedly installed on the air outlet end of the air extraction pump (12), an exhaust box (14) fixedly installed on one end of the exhaust elbow (13), and a mesh plate (23) fixedly installed on one side of the connecting pipeline (11), and the air extraction pump (12) is fixedly installed in the table frame (1).

6. The chemical experiment table with protection according to claim 5, characterized in that: The exhaust box (14) is fixedly installed in the table frame (1), a flow guide box (15) is inserted in the exhaust box (14), and a filter screen (16), an activated carbon plate one (17) and an activated carbon plate two (18) are fixedly installed in the flow guide box (15) from the position close to the exhaust elbow (13) to the position away from the exhaust elbow (13).

7. The chemical experiment table with protection according to claim 5, characterized in that: One end of the exhaust box (14) is provided with a blocking plate (19), a connecting shaft (21) is rotatably arranged on one side of the blocking plate (19), a fixed transverse plate (20) is fixedly connected between one end of the connecting shaft (21) and the exhaust box (14), a plurality of supporting short rods (22) are fixedly connected on one side of the bottom of the fixed transverse plate (20), and the supporting short rods (22) are arranged on the bottom of the blocking plate (19).

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