阅读说明：本技术 一种学生用化学实验台及使用方法 (Chemical experiment table for students and use method ) 是由 姜自兰 张克兵 闫光国 邵长志 于 2020-12-01 设计创作，主要内容包括：本发明公开了一种学生用化学实验台,所述台面上侧设有操作台,所述台面上端设有控制台,所述控制台一侧设有实验柜,所述实验柜一侧设有试管架,所述试管架一侧设有称量台,所述称量台上设有报警器,称量台、报警器通过PLC控制器与控制台连接；所述实验柜内设有气缸,所述气缸下侧设有透明防护罩,所述气缸一侧设有二氧化碳储藏箱；所述传动箱内设有丝杠Ⅲ,所述丝杠Ⅲ上设有连接板,所述连接板下侧设有清洁装置。本发明可以迅速清理操作台上的爆炸、着火,保护学生安全,并可自动对台面进行清洁,通过设有的称量台和报警器来防止学生将实验药品带出实验室,安全性更高,方便移动并且可以根据学生需要调节台面高度。(The invention discloses a chemical experiment table for students, wherein an operation table is arranged on the upper side of a table board, a control table is arranged at the upper end of the table board, an experiment cabinet is arranged on one side of the control table, a test tube rack is arranged on one side of the experiment cabinet, a weighing table is arranged on one side of the test tube rack, an alarm is arranged on the weighing table, and the weighing table and the alarm are connected with the control table through a PLC (programmable logic controller); an air cylinder is arranged in the experiment cabinet, a transparent protective cover is arranged at the lower side of the air cylinder, and a carbon dioxide storage box is arranged at one side of the air cylinder; be equipped with lead screw III in the transmission case, be equipped with the connecting plate on the lead screw III, the connecting plate downside is equipped with cleaning device. The invention can rapidly clean explosion and fire on the operation table, protect the safety of students, automatically clean the table top, prevent the students from taking experimental medicines out of a laboratory through the weighing table and the alarm, has higher safety, is convenient to move and can adjust the height of the table top according to the requirements of the students.)

1. A chemical experiment table for students comprises a table top and is characterized in that a garbage can is arranged on the lower side of the table top, and a cabinet for storing experimental appliances is arranged on one side of the garbage can; a water pool is arranged on the upper side of the table board, and a water faucet is arranged on one side of the water pool; a guide rail is arranged on one side of the water pool, an operating table is arranged on the upper side of the table top, and the operating table is arranged in the guide rail;

the upper end of the table board is provided with a control table, one side of the control table is provided with an experiment cabinet, one side of the experiment cabinet is provided with a test tube rack, one side of the test tube rack is provided with a weighing table, the weighing table is provided with an alarm, and the weighing table and the alarm are connected with the control table through a PLC (programmable logic controller);

an air cylinder is arranged in the experiment cabinet, a transparent protective cover is arranged on the lower side of the air cylinder, a carbon dioxide storage box is arranged on one side of the air cylinder, and the carbon dioxide storage box is connected with the transparent protective cover through a hose;

a side plate is arranged on one side of the experiment cabinet, a transmission case is arranged on the other side of the experiment cabinet, a lead screw III is arranged in the transmission case and is connected with the transmission case through a bearing, a motor I is arranged at one end of the lead screw III, and the motor I is fixed on the table top; the screw rod III is provided with a connecting plate, the connecting plate is in threaded connection with the screw rod III, and the lower side of the connecting plate is provided with a cleaning device;

the cleaning device comprises a baking lamp, a spray head and a cleaning brush, wherein the spray head is arranged on the lower side of the connecting plate, the cleaning brush is arranged on one side of the spray head, and the baking lamp is arranged on one side of the cleaning brush.

2. The chemical laboratory bench for students according to claim 1, wherein a water receiving box is provided at a lower side of the test tube rack, and a handle is provided at one side of the water receiving box.

3. The chemical laboratory bench of claim 1, wherein the side plate has a first sliding groove, the laboratory cabinet has a second sliding groove, one end of the connecting plate is disposed on the first sliding groove, and one side of the connecting plate is disposed on the second sliding groove.

4. The chemical experiment table for students according to claim 1, wherein the operation table is provided with a baffle plate at both sides, a pull handle at one side of the operation table and a lock catch at the other side of the operation table for pushing the operation table into the experiment cabinet, the lock catch is fixed on the experiment cabinet.

5. The chemical experiment table for students according to claim 1, wherein the locking device is arranged on the lower side of the table top and comprises a rotating rod, a claw, a fixing clip, a spring and a handle, the fixing clip is arranged on the lower side of the table top and is fixedly connected with the table top, the rotating rod is arranged on the lower side of the fixing clip and is hinged with the fixing clip, the rotating rod is connected with the table top through the spring, the claw is arranged at one end of the rotating rod, and the handle is arranged at the other end of the rotating rod.

6. The chemical laboratory table for students according to claim 1, wherein the cabinet is provided at a lower end thereof with a bottom plate fixedly connected with the cabinet, two sets of adjusting boxes are provided at a lower side of the table top, and a protection box is provided at a lower side of the adjusting boxes; the automatic adjusting device comprises a group of adjusting boxes, a base plate, a bearing, a driven gear, a driving belt pulley, a protective box and a driven gear, wherein the adjusting boxes are all provided with through grooves on one side, the base plate is arranged in the through grooves, a screw I is arranged in each group of adjusting boxes and is connected with the adjusting boxes through the bearing, the driven gear is arranged on the screw I and is fixedly connected with the screw I, the lower end of the screw I is provided with the driving belt pulley; a screw II is arranged in the other group of adjusting boxes, a driven belt wheel is arranged at the lower end of the screw II and arranged in the protective box, and the driven belt wheel is connected with the driving belt wheel through a belt; two ends of the bottom plate are respectively in threaded connection with the screw I and the screw II.

7. The chemical laboratory table for students according to claim 1, wherein the protective box has a base on the lower side thereof, a screw rod is disposed in the base, the screw rod is connected to the base through a bearing, a sliding block is disposed on the screw rod, the sliding block is in threaded connection with the screw rod, a sliding plate is disposed on the lower side of the screw rod, the sliding plate is connected to the sliding block through a connecting rod, one end of the connecting rod is hinged to the sliding block, the other end of the connecting rod is hinged to the sliding plate, and a plurality of ground wheels are disposed on the lower.

8. The chemical experiment table for the students as claimed in claim 1, wherein a gear box is arranged on one side of the base, a motor II is arranged on one side of the adjusting box, an adjusting device is arranged on one side of the motor II, the adjusting device comprises a gear I, a gear sleeve, a limiting ring, a connecting threaded rod, a threaded sleeve, a limiting rod, a driving gear and a driving bevel gear, the gear I is arranged on the lower side of the motor II, the gear sleeve is arranged on the outer side of the gear I, the gear sleeve is sleeved on the outer side of the gear I, and the gear sleeve is connected with the protective box and the gear box through a bearing; the gear sleeve is provided with a driving gear, the driving gear is fixedly connected with the gear sleeve, and the driving gear is arranged in the protective box; the lower end of the gear sleeve is provided with a driving bevel gear, and the driving bevel gear is arranged in the gear box; the gear casing outside is equipped with the spacing collar, and the spacing collar passes through bearing and gear sleeve union coupling, spacing collar one side is equipped with connecting threaded rod, and connecting threaded rod one end is equipped with the threaded sleeve pipe, and the threaded sleeve intraductal gag lever post that is equipped with, gag lever post and threaded sleeve threaded connection, gag lever post one end are fixed on the gear box.

9. A method of using a chemical laboratory table for students according to any one of claims 1 to 8, comprising the steps of:

s1, moving: the threaded sleeve is rotated to drive the connecting threaded rod and the gear sleeve to move, the driving bevel gear is meshed with the driven bevel gear, the motor II drives the screw rod to rotate through the rotation of the gear I, the gear sleeve, the driving bevel gear and the driven bevel gear to drive the sliding block to move, and the sliding plate and the land wheel are driven to move downwards through the connecting rod to move equipment; the screw rod is rotated reversely to drive the sliding block to move, the sliding plate and the land wheel are driven to move upwards through the connecting rod, and the equipment is stably placed on the ground;

s2, height adjustment: the motor II drives the screw rod I to rotate through the gear I, the gear sleeve, the driving gear and the driven gear to rotate, the driving belt pulley to rotate, the driven belt pulley to rotate through a belt, the screw rod II to rotate, the bottom plate to move, and the cabinet and the table board to move;

s3: an experiment is carried out: pull out the operation panel, the knuckle is fixed with the operation panel, the emergence explosion catches fire, upwards lift the handle, the knuckle breaks away from the operation panel, push into the experiment cabinet with the operation panel in, the hasp is fixed on the experiment cabinet, the control cabinet control cylinder is flexible, drive transparent protection casing cover on the operation panel, carbon dioxide in the carbon dioxide hutch lets in transparent protection casing, the ignition that causes the explosion on the operation panel is extinguished, observe through transparent protection casing, raise transparent protection casing after the fire is extinguished, pull out the operation panel, can continue the experiment.

S4: cleaning: the experiment is accomplished, picks up experimental device and accomplishes the back, pushes away the experiment cabinet with the operation panel, and control cabinet control motor I rotates, drives lead screw III and rotates, drives the connecting plate and removes, and the shower nozzle sprays water to the operation panel, and the unrestrained medicine of cleaning brush on with the operation panel is scrubbed, and the roast lamp is dried the operation panel, with residue propelling movement to the garbage bin.

S5: safety alarm: the lower limit of the reduction amount of the experimental medicine on the weighing platform is set, after the experiment is finished, when the experimental medicine is lower than a set value, the alarm gives an alarm, and if the alarm is not given, the student can leave.

Technical Field

The invention belongs to the technical field of experiment tables, and particularly relates to a chemical experiment table for students.

Background

Chemistry experiment is the indispensable partly in the chemistry study process, therefore whether the convenience of chemistry experiment platform directly influences the efficiency and the quality of chemistry experiment, and traditional chemistry experiment platform structure is simple relatively, and the function is single relatively, carries out chemistry experiment to students, has also caused a lot of puzzlements.

Through retrieval, the novel chemical experiment table disclosed in the Chinese patent with the publication number of CN105935613B solves the problem that an experiment reagent is leaked due to the fact that a test tube rack is overturned in the experiment process through the experiment table, the instrument cabinet, the water supply and drainage part and the groove; however, the device has the following disadvantages in use: 1) the safety coefficient of the chemical experiment table is not high, and when the experiment is exploded and the experiment medicine is sprayed to cause ignition, no cleaning equipment is provided, so that the safety of students is influenced; 2) when the experiment is completed, when the table top of the chemical experiment table needs to be cleaned, the table top is usually wiped by using cleaning cloth, and if corrosive medicines exist on the table top, the table top causes harm to students; 3) can not effectively manage the medicine and has the risk of being stolen and carried out by students.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a chemical laboratory table for students, which can rapidly clean explosion and fire on an operation table, protect the safety of the students, automatically clean the table top, prevent the students from taking experimental medicines out of a laboratory through a weighing table and an alarm, has higher safety, is convenient to move, and can adjust the height of the table top according to the needs of the students.

In order to achieve the purpose, the invention adopts the technical scheme that:

a chemical experiment table for students comprises a table top, wherein a garbage can is arranged on the lower side of the table top, and a cabinet for storing experimental appliances is arranged on one side of the garbage can; a water pool is arranged on the upper side of the table board, and a water faucet is arranged on one side of the water pool; a guide rail is arranged on one side of the water pool, an operating table is arranged on the upper side of the table top and is arranged in the guide rail to limit the sliding of the operating table;

the device comprises a table board, a control table, an experiment cabinet, a test tube rack, a weighing table, an appliance for placing experimental medicines with high flammable and explosive risks, an alarm, a PLC (programmable logic controller) controller and a lower limit of the reduction amount of the experimental medicines on the weighing table, wherein the control table is arranged at the upper end of the table board;

an air cylinder is arranged in the experiment cabinet, a transparent protective cover is arranged on the lower side of the air cylinder, a carbon dioxide storage box is arranged on one side of the air cylinder, and the carbon dioxide storage box is connected with the transparent protective cover through a hose; the experiment on the operation table is exploded and ignited, the operation table is pushed into the experiment cabinet, the control table controls the air cylinder to stretch and retract to drive the transparent protective cover to cover the operation table, carbon dioxide in the carbon dioxide storage box is introduced into the transparent protective cover, the ignition caused by the explosion on the operation table is extinguished, the transparent protective cover is lifted after the fire is extinguished through the transparent protective cover, the experiment can be continued after the operation table is pulled out, and the safety of students is protected;

a side plate is arranged on one side of the experiment cabinet, a transmission case is arranged on the other side of the experiment cabinet, a lead screw III is arranged in the transmission case and is connected with the transmission case through a bearing, a motor I is arranged at one end of the lead screw III, and the motor I is fixed on the table top; the screw rod III is provided with a connecting plate, the connecting plate is in threaded connection with the screw rod III, a cleaning device is arranged on the lower side of the connecting plate, the motor I drives the screw rod III to rotate, the connecting plate is driven to move, the cleaning device is driven to move, the operation table is cleaned, and residues are pushed to the garbage can;

the cleaning device comprises a baking lamp, a spray head and a cleaning brush, wherein the spray head is arranged on the lower side of the connecting plate, the cleaning brush is arranged on one side of the spray head, and the baking lamp is arranged on one side of the cleaning brush; the experiment is accomplished, picks up experimental device and accomplishes the back, pushes away the experiment cabinet with the operation panel, and control cabinet control motor I rotates, drives lead screw III and rotates, drives the connecting plate and removes, and the shower nozzle is to the operation panel water spray, and the unrestrained medicine of cleaning brush on with the operation panel is scrubbed, and the roast lamp is dried the operation panel, with residue propelling movement to the garbage bin, prevents that the medicine from corroding the operation panel.

Preferably, a water receiving box is arranged on the lower side of the test tube rack, and a handle is arranged on one side of the water receiving box, so that the washed test tubes can be conveniently received and cleaned.

Preferably, be equipped with spout I in the curb plate, experiment cabinet one side is equipped with spout II, and connecting plate one end sets up in spout I, and connecting plate one side sets up in spout II, carries on spacingly to the connecting plate.

Preferably, the operation panel both sides all are equipped with the baffle, and when preventing clean operation panel, the residue flows from both sides, operation panel one side is equipped with the pull handle, the operation panel opposite side is equipped with the hasp, with the operation panel push into the experiment cabinet in, the hasp is fixed on the experiment cabinet, when preventing clean operation panel, the operation panel takes place to remove.

Preferably, the lower side of the table board is provided with a locking device, the locking device comprises a rotating rod, a claw, a fixing clamp, a spring and a handle, the lower side of the table board is provided with the fixing clamp, the fixing clamp is fixedly connected with the table board, the rotating rod is hinged to the fixing clamp and is connected with the table board through the spring, the claw is arranged at one end of the rotating rod, the other end of the rotating rod is provided with the handle, the operating table is pulled out, the claw fixes the operating table to prevent the operating table from moving, the handle is lifted upwards, and the claw is separated from the operating table and can move the operating table.

Preferably, the lower end of the cabinet is provided with a bottom plate which is fixedly connected with the cabinet, two groups of adjusting boxes are arranged on the lower side of the table board, and a protective box is arranged on the lower side of each adjusting box; the automatic adjusting device comprises a group of adjusting boxes, a base plate, a bearing, a driven gear, a driving belt pulley, a protective box and a driven gear, wherein the adjusting boxes are all provided with through grooves on one side, the base plate is arranged in the through grooves, a screw I is arranged in each group of adjusting boxes and is connected with the adjusting boxes through the bearing, the driven gear is arranged on the screw I and is fixedly connected with the screw I, the lower end of the screw I is provided with the driving belt pulley; a screw II is arranged in the other group of adjusting boxes, a driven belt wheel is arranged at the lower end of the screw II and arranged in the protective box, and the driven belt wheel is connected with the driving belt wheel through a belt; two ends of the bottom plate are respectively in threaded connection with the screw I and the screw II; when the height of the table top needs to be adjusted, the screw I is rotated to drive the driving belt pulley to rotate, the belt drives the driven belt pulley to rotate, the screw II is driven to rotate, the bottom plate is driven to move, the cabinet and the table top are driven to move, and the experiment is performed by students with different heights conveniently.

Preferably, a base is arranged on the lower side of the protective box, a screw rod is arranged in the base and is connected with the base through a bearing, a sliding block is arranged on the screw rod and is in threaded connection with the screw rod, a sliding plate is arranged on the lower side of the screw rod and is connected with the sliding block through a connecting rod, one end of the connecting rod is hinged with the sliding block, the other end of the connecting rod is hinged with the sliding plate, a plurality of land wheels are arranged on the lower side of the sliding plate, the screw rod is rotated to drive the sliding block to move, the sliding plate and the land wheels; the screw rod is rotated reversely to drive the sliding block to move, the sliding plate and the land wheel are driven to move upwards through the connecting rod, and the equipment is stably placed on the ground.

Preferably, a gear box is arranged on one side of the base, a motor II is arranged on one side of the adjusting box, an adjusting device is arranged on one side of the motor II and comprises a gear I, a gear sleeve, a limiting ring, a connecting threaded rod, a threaded sleeve, a limiting rod, a driving gear and a driving bevel gear, the gear I is arranged on the lower side of the motor II, the gear sleeve is arranged on the outer side of the gear I, the gear sleeve is sleeved on the outer side of the gear I, and the gear sleeve is connected with the protective box and the gear box through a bearing; the gear sleeve is provided with a driving gear, the driving gear is fixedly connected with the gear sleeve, and the driving gear is arranged in the protective box; the lower end of the gear sleeve is provided with a driving bevel gear, and the driving bevel gear is arranged in the gear box; the gear box is characterized in that a limiting ring is arranged on the outer side of the gear sleeve and is connected with the gear sleeve through a bearing, a connecting threaded rod is arranged on one side of the limiting ring, a threaded sleeve is arranged at one end of the connecting threaded rod, a limiting rod is arranged in the threaded sleeve and is in threaded connection with the threaded sleeve, and one end of the limiting rod is fixed on the gear box; the threaded sleeve is rotated to drive the connecting threaded rod and the gear sleeve to move, the driving bevel gear is meshed with the driven bevel gear, and the motor II drives the screw rod to rotate through the rotation of the gear I, the gear sleeve, the driving bevel gear and the driven bevel gear to adjust the sliding plate to move up and down; the reverse rotation threaded sleeve pipe drives connecting threaded rod, gear sleeve pipe and removes, and driving gear and driven gear meshing, motor II pass through gear I, gear sleeve pipe, driving gear and driven gear rotation, adjust the mesa height, and a motor can realize that equipment removes, the mesa height is adjusted, practices thrift equipment cost.

A use method of a chemical experiment table for students comprises the following steps:

s1, moving: the threaded sleeve is rotated to drive the connecting threaded rod and the gear sleeve to move, the driving bevel gear is meshed with the driven bevel gear, the motor II drives the screw rod to rotate through the rotation of the gear I, the gear sleeve, the driving bevel gear and the driven bevel gear to drive the sliding block to move, and the sliding plate and the land wheel are driven to move downwards through the connecting rod to move equipment; the screw rod is rotated reversely to drive the sliding block to move, the sliding plate and the land wheel are driven to move upwards through the connecting rod, and the equipment is stably placed on the ground;

s2, height adjustment: the motor II drives the screw rod I to rotate through the gear I, the gear sleeve, the driving gear and the driven gear to rotate, the driving belt pulley to rotate, the driven belt pulley to rotate through a belt, the screw rod II to rotate, the bottom plate to move, and the cabinet and the table board to move;

s3: an experiment is carried out: pull out the operation panel, the knuckle is fixed with the operation panel, the emergence explosion catches fire, upwards lift the handle, the knuckle breaks away from the operation panel, push into the experiment cabinet with the operation panel in, the hasp is fixed on the experiment cabinet, the control cabinet control cylinder is flexible, drive transparent protection casing cover on the operation panel, carbon dioxide in the carbon dioxide hutch lets in transparent protection casing, the ignition that causes the explosion on the operation panel is extinguished, observe through transparent protection casing, raise transparent protection casing after the fire is extinguished, pull out the operation panel, can continue the experiment.

S4: cleaning: the experiment is accomplished, picks up experimental device and accomplishes the back, pushes away the experiment cabinet with the operation panel, and control cabinet control motor I rotates, drives lead screw III and rotates, drives the connecting plate and removes, and the shower nozzle sprays water to the operation panel, and the unrestrained medicine of cleaning brush on with the operation panel is scrubbed, and the roast lamp is dried the operation panel, with residue propelling movement to the garbage bin.

S5: safety alarm: the lower limit of the reduction amount of the experimental medicine on the weighing platform is set, after the experiment is finished, when the experimental medicine is lower than a set value, the alarm gives an alarm, and if the alarm is not given, the student can leave.

Compared with the prior art, the invention has the beneficial effects that:

1) the weighing platform and the alarm are connected with the control platform through the PLC, the lower limit of the reduction amount of the experimental medicine on the weighing platform is set, after the experiment is finished, the alarm gives an alarm when the experimental medicine is lower than the set value, so that students are prevented from taking the medicine out of the room, and the safety of the students is guaranteed;

2) the experiment on the operation table is exploded and ignited, the operation table is pushed into the experiment cabinet, the control table controls the air cylinder to stretch and retract to drive the transparent protective cover to cover the operation table, carbon dioxide in the carbon dioxide storage box is introduced into the transparent protective cover, the ignition caused by the explosion on the operation table is extinguished, the transparent protective cover is lifted after the fire is extinguished through the transparent protective cover, the experiment can be continued after the operation table is pulled out, and the safety of students is protected;

3) after the experiment is completed, after experimental equipment is collected, the operation table is pushed into the experiment cabinet, the control console controls the motor I to rotate, the screw rod III is driven to rotate, the connecting plate is driven to move, the spray head sprays water to the operation table, the cleaning brush scrubs the medicines scattered on the operation table, the baking lamp dries the operation table, residues are pushed to the garbage can, and the medicines are prevented from corroding the operation table;

4) when the height of the table top needs to be adjusted, the screw I is rotated to drive the driving belt pulley to rotate, the driven belt pulley is driven to rotate through the belt, the screw II is driven to rotate, the bottom plate is driven to move, the cabinet and the table top are driven to move, and students with different heights can conveniently conduct experiments;

5) the screw rod is rotated to drive the sliding block to move, and the sliding plate and the land wheel are driven to move downwards through the connecting rod, so that the equipment can move conveniently; the screw rod is rotated reversely to drive the sliding block to move, the sliding plate and the land wheel are driven to move upwards through the connecting rod, and the equipment is stably placed on the ground;

6) the equipment can be moved and the height of the table top can be adjusted by one motor, so that the equipment cost is saved.

Drawings

FIG. 1 is a schematic structural diagram of a chemical laboratory bench for students according to the present invention;

FIG. 2 is a schematic structural diagram of a chemical laboratory bench experiment cabinet for students according to the present invention;

FIG. 3 is a sectional structure diagram of a chemical laboratory bench for students;

FIG. 4 is a schematic structural view of a chemical laboratory bench cleaning device for students according to the present invention;

FIG. 5 is a schematic structural diagram of a chemical laboratory table for students according to the present invention;

FIG. 6 is a schematic top view of a chemical laboratory table top for students according to the present invention;

FIG. 7 is a schematic structural view of a locking device of a chemical laboratory bench for students according to the present invention;

FIG. 8 is a sectional structure diagram of a chemical laboratory bench adjusting box for students;

FIG. 9 is a schematic diagram of an explosive structure of a chemical laboratory bench adjusting device for students according to the present invention;

in the figure: 1-table top, 101-guide rail, 2-experiment cabinet, 201-side plate, 2011-sliding chute I, 202-sliding chute II, 203-transmission case, 3-cabinet, 4-adjusting device, 401-gear I, 402-gear sleeve, 403-spacing ring, 404-connecting threaded rod, 405-threaded sleeve, 406-spacing rod, 407-driving gear, 408-driving bevel gear, 5-base, 6-adjusting case, 601-through groove, 602-lead screw I, 603-driven gear, 604-driving belt pulley, 605-driven belt pulley, 606-belt, 607-lead screw II, 7-protective case, 8-bottom plate, 9-control table, 10-locking device, 1001-rotating rod, 1002-claw, 1003-a fixing clamp, 1004-a spring, 1005-a handle, 11-a water tank, 12-a water tap, 13-a test tube rack, 1301-a water receiving box, 1302-a handle, 14-an air cylinder, 15-a carbon dioxide storage box, 16-a hose, 17-a transparent protective cover, 18-a weighing platform, 19-an alarm, 20-a motor I, 21-an operation platform, 2101-a pull handle, 2102-a baffle, 2103-a lock catch, 22-a screw rod III, 23-a connecting plate, 24-a cleaning device, 2401-a baking lamp, 2402-a nozzle, 2403-a cleaning brush, 25-a garbage can, 26-a screw rod, 27-a sliding block, 28-a connecting rod, 29-a sliding plate, 30-a land wheel, 31-a driven bevel gear, 32-a motor II, 33-gearbox.

Detailed Description

For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further described in detail with reference to fig. 1 to 9.

A chemical experiment table for students comprises a table board 1, wherein a garbage can 25 is arranged on the lower side of the table board 1, and a cabinet 3 for storing experimental appliances is arranged on one side of the garbage can 25; a water pool 11 is arranged on the upper side of the table board 1, and a water tap 12 is arranged on one side of the water pool 11; a guide rail 101 is arranged on one side of the water tank 11, an operating table 21 is arranged on the upper side of the table board 1, and the operating table 21 is arranged in the guide rail 101 and used for limiting the sliding of the operating table 21;

the upper end of the table board 1 is provided with a control table 9, one side of the control table 9 is provided with an experiment cabinet 2, one side of the experiment cabinet 2 is provided with a test tube rack 13, one side of the test tube rack 13 is provided with a weighing table 18 for placing appliances of experiment medicines with high flammability and explosiveness risks, the weighing table 18 is provided with an alarm 19, the weighing table 18 and the alarm 19 are connected with the control table 9 through a PLC (programmable logic controller) controller, the lower limit of the reduction amount of the experiment medicines on the weighing table 18 is set, and after an experiment is finished, when the experiment medicines are lower than a set value, the alarm 19 gives an alarm to prevent a student from taking the medicines out of a;

an air cylinder 14 is arranged in the experiment cabinet 2, a transparent protective cover 17 is arranged on the lower side of the air cylinder 14, a carbon dioxide storage box 15 is arranged on one side of the air cylinder 14, and the carbon dioxide storage box 15 is connected with the transparent protective cover 17 through a hose 16; when an experiment on the operating table 21 explodes and catches fire, the operating table 21 is pushed into the experiment cabinet 2, the control table 9 controls the cylinder 14 to stretch and retract to drive the transparent protective cover 17 to cover the operating table, carbon dioxide in the carbon dioxide storage box 15 is introduced into the transparent protective cover 17 to extinguish the fire caused by the explosion on the operating table 21, the transparent protective cover 17 is observed through the transparent protective cover 17, the transparent protective cover 17 is lifted after the fire is extinguished, the experiment can be continued by pulling out the operating table 21, and the safety of students is protected;

a side plate 201 is arranged on one side of the experiment cabinet 2, a transmission case 203 is arranged on the other side of the experiment cabinet 2, a lead screw III 22 is arranged in the transmission case 203, the lead screw III 22 is connected with the transmission case 203 through a bearing, a motor I20 is arranged at one end of the lead screw III 22, and the motor I20 is fixed on the table board 1; a connecting plate 23 is arranged on the screw rod III 22, the connecting plate 23 is in threaded connection with the screw rod III 22, a cleaning device 24 is arranged on the lower side of the connecting plate 23, the motor I20 drives the screw rod III 22 to rotate, the connecting plate 23 to move and the cleaning device 24 to move, the operating table 21 is cleaned, and residues are pushed to the garbage can 25;

the cleaning device 24 comprises a baking lamp 2401, a spray head 2402 and a cleaning brush 2403, the plurality of spray heads 2402 are arranged on the lower side of the connecting plate 23, the cleaning brush 2403 is arranged on one side of each spray head 2402, and the baking lamp 2401 is arranged on one side of each cleaning brush 2403; the experiment is accomplished, picks up experimental device and accomplishes the back, pushes experiment cabinet 2 with operation panel 21, and control cabinet control motor I20 rotates, drives lead screw III 22 and rotates, drives connecting plate 23 and removes, and shower nozzle 2402 sprays water to operation panel 21, and cleaning brush 2403 scrubs the unrestrained medicine on the operation panel 21, and roast lamp 2401 dries operation panel 21, with residue propelling movement to garbage bin 25, prevents that the medicine from corroding operation panel 21.

A water receiving box 1301 is arranged on the lower side of the test tube rack 13, a handle 1302 is arranged on one side of the water receiving box 1301, and therefore water receiving and cleaning of the washed test tubes are facilitated.

Be equipped with spout I2011 in the curb plate 201, 2 one sides of experiment cabinet are equipped with spout II 202, and connecting plate 23 one end sets up in spout I2011, and connecting plate 23 one side sets up in spout II 202, carries on spacingly to connecting plate 23.

Operation panel 21 both sides all are equipped with baffle 2102, and when preventing clean operation panel 21, the residue flows from both sides, operation panel 21 one side is equipped with pull handle 2101, operation panel 21 opposite side is equipped with hasp 2103, in pushing into experiment cabinet 2 with operation panel 21, hasp 2103 is fixed on experiment cabinet 2, when preventing clean operation panel 21, and operation panel 21 takes place to remove.

The locking device 10 is arranged on the lower side of the table board 1, the locking device 10 comprises a rotating rod 1001, a claw 1002, a fixing clamp 1003, a spring 1004 and a handle 1005, the fixing clamp 1003 is arranged on the lower side of the table board 1, the fixing clamp 1003 is fixedly connected with the table board 1, the rotating rod 1001 is arranged on the lower side of the fixing clamp 1003, the rotating rod 1001 is hinged with the fixing clamp 1003, the rotating rod 1001 is connected with the table board 1 through the spring 1004, the claw 1002 is arranged at one end of the rotating rod 1001, the handle 1005 is arranged at the other end of the rotating rod 1001, the operating table 21 is pulled out, the claw 1002 fixes the operating table 21, the operating table 21 is prevented from moving, the handle 1005 is lifted upwards, and the claw 1002 is separated from the operating table 21, so.

The lower end of the cabinet 3 is provided with a bottom plate 8, the bottom plate 8 is fixedly connected with the cabinet 3, two groups of adjusting boxes 6 are arranged on the lower side of the table board 1, and a protective box 7 is arranged on the lower side of each adjusting box 6; a through groove 601 is formed in one side of each adjusting box 6, a bottom plate 8 is arranged in the through groove 601, a lead screw I602 is arranged in each group of adjusting boxes 6, the lead screw I602 is connected with the adjusting boxes 6 through a bearing, a driven gear 603 is arranged on the lead screw I602, the driven gear 603 is fixedly connected with the lead screw I602, a driving belt pulley 604 is arranged at the lower end of the lead screw I602, and the driven gear 603 and the driving belt pulley 604 are arranged in a protective box 7; a screw II 607 is arranged in the other group of adjusting boxes 6, a driven belt wheel 605 is arranged at the lower end of the screw II 607, the driven belt wheel 605 is arranged in the protective box 7, and the driven belt wheel 605 is connected with the driving belt wheel 604 through a belt 606; two ends of the bottom plate 8 are respectively in threaded connection with a screw I602 and a screw II 607; when needing to adjust 1 height of mesa, rotate lead screw I602, drive driving pulley 604 and rotate, drive driven pulley 605 through belt 606 and rotate, drive lead screw II 607 and rotate, drive bottom plate 8 and remove, drive cupboard 3, mesa 1 and reciprocate, make things convenient for the student of different heights to do the experiment.

The lower side of the protective box 7 is provided with a base 5, a screw 26 is arranged in the base 5, the screw 26 is connected with the base 5 through a bearing, the screw 26 is provided with a sliding block 27, the sliding block 27 is in threaded connection with the screw 26, the lower side of the screw 26 is provided with a sliding plate 29, the sliding plate 29 is connected with the sliding block 27 through a connecting rod 28, one end of the connecting rod 28 is hinged with the sliding block 27, the other end of the connecting rod 28 is hinged with the sliding plate 29, the lower side of the sliding plate 29 is provided with a plurality of land wheels 30, the screw 26 is rotated to drive the sliding block 27 to move, and the sliding plate 29 and; the screw 26 is rotated reversely to drive the slide block 27 to move, and the slide plate 29 and the land wheel 30 are driven to move upwards through the connecting rod 28, so that the equipment is stably placed on the ground.

A gear box 33 is arranged on one side of the base 5, a motor II 32 is arranged on one side of the adjusting box 6, an adjusting device 4 is arranged on one side of the motor II 32, the adjusting device 4 comprises a gear I401, a gear sleeve 402, a limiting ring 403, a connecting threaded rod 404, a threaded sleeve 405, a limiting rod 406, a driving gear 407 and a driving bevel gear 408, a gear I401 is arranged on the lower side of the motor II 32, the gear sleeve 402 is arranged on the outer side of the gear I401, the gear sleeve 402 is sleeved on the outer side of the gear I401, and the gear sleeve 402 is connected with the protective box 7 and the gear box 33 through bearings; a driving gear 407 is arranged on the gear sleeve 402, the driving gear 407 is fixedly connected with the gear sleeve 402, and the driving gear 407 is arranged in the protective box 7; the lower end of the gear sleeve 402 is provided with a driving bevel gear 408, and the driving bevel gear 408 is arranged in the gear box 33; a limiting ring 403 is arranged on the outer side of the gear sleeve 402, the limiting ring 403 is connected with the gear sleeve 402 through a bearing, a connecting threaded rod 404 is arranged on one side of the limiting ring 403, a threaded sleeve 405 is arranged at one end of the connecting threaded rod 404, a limiting rod 406 is arranged in the threaded sleeve 405, the limiting rod 406 is in threaded connection with the threaded sleeve 405, and one end of the limiting rod 406 is fixed on the gear box 33; the threaded sleeve 405 is rotated to drive the connecting threaded rod 404 and the gear sleeve 402 to move, the driving bevel gear 408 is meshed with the driven bevel gear 31, and the motor II 32 rotates with the driven bevel gear 31 through the gear I401, the gear sleeve 402 and the driving bevel gear 408 to drive the screw 26 to rotate, so that the sliding plate 29 is adjusted to move up and down; the reverse rotation threaded sleeve 405 drives the connecting threaded rod 404 and the gear sleeve 402 to move, the driving gear 407 is meshed with the driven gear 603, the motor II 32 rotates through the gear I401, the gear sleeve 402, the driving gear 407 and the driven gear 603, the height of the table top 1 is adjusted, equipment movement and table top height adjustment can be achieved through one motor, and equipment cost is saved.

A use method of a chemical experiment table for students comprises the following steps:

s1, moving: the threaded sleeve 405 is rotated to drive the connecting threaded rod 404 and the gear sleeve 402 to move, the driving bevel gear 408 is meshed with the driven bevel gear 31, the motor II 32 rotates with the driven bevel gear 31 through the gear I401, the gear sleeve 402 and the driving bevel gear 408 to drive the screw 26 to rotate, the sliding block 27 is driven to move, and the sliding plate 29 and the ground wheel 30 are driven to move downwards through the connecting rod 28 to move the equipment; the screw rod 26 is rotated reversely to drive the slide block 27 to move, the slide plate 29 and the land wheel 30 are driven to move upwards to enter the base 5 through the connecting rod 28, and the equipment is stably placed on the ground;

s2, height adjustment: the threaded sleeve 405 is rotated reversely to drive the connecting threaded rod 404 and the gear sleeve 402 to move, the driving gear 407 is meshed with the driven gear 603, the motor II 32 rotates through the gear I401, the gear sleeve 402, the driving gear 407 and the driven gear 603 to drive the screw I602 to rotate, the driving belt pulley 604 is driven to rotate, the driven belt pulley 605 is driven to rotate through the belt 606 to drive the screw II 607 to rotate, the bottom plate 8 is driven to move, and the cabinet 3 and the table board 1 are driven to move;

s3: an experiment is carried out: the operation table 21 is pulled out, the operation table 21 is fixed by the hook claws 1002, explosion and ignition occur, the handle 1005 is lifted upwards, the hook claws 1002 are separated from the operation table 21, the operation table 21 is pushed into the experiment cabinet 2, the lock catches 2103 are fixed on the experiment cabinet 2, the control table 9 controls the air cylinder 14 to stretch and retract, the transparent protective cover 17 is driven to cover the operation table 21, carbon dioxide in the carbon dioxide storage box 15 is introduced into the transparent protective cover 17, ignition caused by explosion on the operation table 21 is extinguished, the transparent protective cover 17 is lifted after the ignition is extinguished, the operation table 21 is pulled out, and the experiment can be continued.

S4: cleaning: the experiment is accomplished, picks up the experiment equipment and accomplishes the back, pushes experiment cabinet 2 with operation panel 21, and control cabinet 9 control motor I20 rotates, drives lead screw III 22 and rotates, drives connecting plate 23 and removes, and shower nozzle 2402 sprays water to operation panel 21, and cleaning brush 2403 scrubs the unrestrained medicine on the operation panel 21, and roast lamp 2401 dries operation panel 21, with residue propelling movement to garbage bin 25.

S5: safety alarm: the lower limit of the reduction amount of the experimental medicine on the weighing platform 18 is set, after the experiment is finished, when the experimental medicine is lower than the set value, the alarm 19 gives an alarm, and if the alarm is not given, the student can leave.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.