CN216826229U

CN216826229U - Safety device for chemistry experiments

Info

Publication number: CN216826229U
Application number: CN202122616470.9U
Authority: CN
Inventors: 张月花; 张肖肖; 豆丽靖; 王相文; 张倩
Original assignee: Dezhou Vocational and Technical College
Current assignee: Dezhou Vocational and Technical College
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-06-28
Anticipated expiration: 2031-10-28

Abstract

The utility model provides a safety device for chemistry experiments mainly relates to chemistry experiments protective device field. The utility model provides a safety device for chemistry experiments, includes first box, middle part fixed mounting baffle in the first box, the first groove that passes through is seted up to the preceding lower part of first box, first pass through the inslot and be equipped with the drawer, the top surface of baffle is seted up the second and is passed through the groove, the second passes through inslot fixed mounting metal mesh, the third passes through the groove is seted up to the top surface of first box, the sealed lid of articulated installation in the third passes through the groove, sealed lid, the top surface of sealed lid is equipped with the glass observation window, one side of first box is equipped with exhaust-gas treatment mechanism. The beneficial effects of the utility model reside in that: this device is when using the first box of accessible separates experimental apparatus and experimenter, makes the chemistry experiment accomplish in first box, avoids experimenter direct contact experimental apparatus when chemical reaction goes on, provides corresponding protection for the experimenter.

Description

Safety device for chemistry experiments

Technical Field

The utility model relates to a chemistry experiment protective device field specifically is a safety device for chemistry experiments.

Background

On a chemical classroom in a campus, teachers can carry out different chemical experiments according to teaching contents during teaching so as to improve the learning efficiency of students, when the chemical experiments are carried out, the teachers can not be in contact with various strong acids, strong bases and gases harmful to human bodies, if the chemical experiments are not well protected, the substances can be splashed into the skin or eyes of the human bodies, and then the harmful gases can be sucked into nostrils, so that the health of experimenters is harmed.

SUMMERY OF THE UTILITY MODEL

For solving prior art's not enough, the utility model provides a safety device for chemistry experiments, this device is separated experimental apparatus and experimenter with the first box of accessible when using, makes chemistry experiments accomplish in first box, avoids experimental personnel direct contact experimental apparatus when chemical reaction goes on, provides safety protection for the experimenter.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

the utility model provides a safety device for chemistry experiments, includes first box, middle part fixed mounting baffle in the first box, the first groove that passes through is seted up to the preceding lower part of first box, first pass through the inslot and be equipped with the drawer, the top surface of baffle is seted up the second and is passed through the groove, the second passes through inslot fixed mounting metal mesh, the third passes through the groove is seted up to the top surface of first box, the sealed lid of articulated installation in the third passes through the groove, sealed lid, the top surface of sealed lid is equipped with the glass observation window, one side of first box is equipped with exhaust-gas treatment mechanism.

The waste gas treatment mechanism comprises a second box body, one side of one side fixed connection second box body of first box body, one end of one side fixed connection blast pipe of first box body top surface, the other end of blast pipe is connected with the air exhauster, the one end of the gas outlet fixed connection outlet duct of air exhauster, the outlet duct runs through the top surface of second box body and fixed connection with it, the other end of outlet duct is located the second box body, the top surface of second box body is equipped with the feed inlet, the fluid-discharge tube that lower part fixed mounting in the second box body outside has the valve.

An air inlet is formed in one side of the front face of the drawer, and a piston is movably mounted in the air inlet.

And a handle is fixedly arranged in the middle of the front of the drawer.

Contrast prior art, the beneficial effects of the utility model are that:

this device can place the laboratory glassware in first box when using, observes the reaction process through the sealed glass observation window that covers to avoid the liquid in the laboratory glassware to splash on one's body the experimenter, and discharge after the exhaust-gas treatment that produces the reaction through exhaust-gas treatment mechanism, provide good protection, the person of facilitating the use's use for the experimenter.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional structure diagram of the first box of the present invention;

fig. 3 is an enlarged view of part i of fig. 1.

Reference numerals shown in the drawings: 1. a first case; 2. a partition plate; 3. a first through groove; 4. a second through groove; 5. a metal mesh; 6. a third through groove; 7. a sealing cover; 8. an observation window; 9. a second case; 10. an exhaust pipe; 11. an exhaust fan; 12. an air outlet pipe; 13. a feed inlet; 14. a liquid discharge pipe; 15. an air inlet; 16. a piston; 17. a handle; 18. a drawer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

The embodiment is as follows: safety device for chemistry experiments

As shown in fig. 1 to 3, the experimental apparatus used in the present example can be isolated from the experimenter through the first box, so as to protect the experimenter, and the specific structure thereof includes:

including first box 1, middle part fixed mounting baffle 2 in the first box 1, first groove 3 that passes through is seted up to the preceding lower part of first box 1, be equipped with drawer 18 in the first groove 3 that passes through, the second that passes through groove 4 is seted up to the top surface of baffle 2, the second passes through fixed mounting metal mesh 5 in the groove 4, the third that passes through groove 6 is seted up to the top surface of first box 1, the sealed lid 7 of the interior articulated installation in groove 6 that passes through of third, sealed lid 7, the top surface of sealed lid 7 is equipped with glass observation window 8, one side of first box 1 is equipped with exhaust-gas treatment mechanism.

Waste gas treatment mechanism includes second box 9, one side of one side fixed connection second box 9 of first box 1, one side fixed connection blast pipe 10's of first box 1 top surface one end, the other end of blast pipe 10 is connected with air exhauster 11, air exhauster 11 and power supply circuit are connected, the one end of air exhauster 11's gas outlet fixed connection outlet duct 12, outlet duct 12 runs through the top surface of second box 9 and fixed connection with it, the other end of outlet duct 12 is located second box 9, the top surface of second box 9 is equipped with feed inlet 13, the lower part fixed mounting in the second box 9 outside has fluid-discharge tube 14 of valve. This device is when using, can pass through feed inlet 13 to injecting corresponding absorption liquid in the second box 9 to the produced harmful gas of chemistry experiment, and make the gas vent of outlet duct 12 be located absorption liquid, switch on the power of air exhauster 11 during the use, 11 during operations of air exhauster pass through blast pipe 10, the produced waste gas of chemical reaction lets in the second box 9 in outlet duct 12 will first box 1, absorb liquid absorption through, discharge by feed inlet 13 after diluting, thereby avoid discharging between the harmful gas in the air, provide corresponding protection for the experimenter.

An air inlet hole 15 is formed in one side of the front face of the drawer 18, and a piston 16 is movably mounted in the air inlet hole 15. This device is when using, when the user need use the alcohol burner to the heating of laboratory ware, put into drawer 18 after lighting the alcohol burner, make alcohol wait in the below of metal mesh 5, take out piston 16 in inlet port 15, can make the air get into in first box 1 by inlet port 15, thereby provide sufficient oxygen for the burning of alcohol burner, prevent that the alcohol burner from leading to extinguishing because of the oxygen deficiency, when need not use the alcohol burner, the user can fill in piston 16 in inlet port 15, avoid the produced harmful waste gas of experiment to spill over in inlet port 15, improve the reliability of this device.

A handle 17 is fixedly arranged in the middle of the front of the drawer 18. This structural design can provide corresponding stress point for the user removes drawer 18, and convenience of customers draws drawer 18 in first trough 3 through pulling handle 17, and convenience of customers's use.

The device is used, a reaction utensil for chemical experiments can be placed in the first box body by opening the sealing cover, when the reaction utensil needs to be heated, the reaction utensil can be placed on the metal net after the asbestos gauze is placed on the top surface of the metal net, the drawer is taken out of the third transparent groove, the ignited alcohol lamp is placed in the drawer, the drawer is inserted into the third transparent groove again, the alcohol lamp is positioned below the metal net, the reaction utensil is heated, so that the requirements of the experimenters for different experiments are met, when the experiments are carried out, a user can observe the reaction process through the glass observation window on the top surface of the sealing cover, the articles used for the chemical reactions can be separated from the experimenters through the first box body, the experimenters are prevented from directly contacting the articles used for the chemical reactions, corresponding protection is provided for the user, and in the process of the chemical experiments, the experimenters can carry out harmless treatment on waste gas generated by the experiments through the waste gas treatment mechanism, prevent that the experimenter from inhaling harmful gas, protect the health of experimenter, facilitate the use of user.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a safety device for chemistry experiments, includes first box (1), middle part fixed mounting baffle (2) in first box (1), its characterized in that: the utility model discloses a glass exhaust treatment device, including first box (1), first trough (3) is seted up to the preceding lower part of first box (1), be equipped with drawer (18) in first trough (3), the top surface of baffle (2) is seted up the second trough (4), the second is fixed mounting metal mesh (5) in the trough (4), the third trough (6) is seted up to the top surface of first box (1), the sealed lid (7) of articulated installation in the third trough (6), sealed lid (7), the top surface of sealed lid (7) is equipped with glass observation window (8), one side of first box (1) is equipped with exhaust-gas treatment mechanism.

2. A safety shield apparatus for chemical experiments, as claimed in claim 1, wherein: waste gas treatment mechanism includes second box (9), one side of one side fixed connection second box (9) of first box (1), one end of one side fixed connection blast pipe (10) of first box (1) top surface, the other end of blast pipe (10) is connected with air exhauster (11), the one end of the gas outlet fixed connection outlet duct (12) of air exhauster (11), outlet duct (12) run through the top surface of second box (9) and fixed connection with it, the other end of outlet duct (12) is located second box (9), the top surface of second box (9) is equipped with feed inlet (13), lower part fixed mounting in the second box (9) outside has fluid-discharge tube (14) of valve.

3. A safety shield apparatus for chemical experiments, as claimed in claim 1, wherein: an air inlet hole (15) is formed in one side of the front face of the drawer (18), and a piston (16) is movably mounted in the air inlet hole (15).

4. The safety protection device for the chemical experiment according to claim 1, characterized in that: the middle part of the front surface of the drawer (18) is fixedly provided with a handle (17).