Ventilation cabinet for chemical experiment

Abstract

The utility model provides a ventilation cabinet for chemical experiments. The ventilation cabinet for the chemical experiment comprises a lower cabinet body, an operation table and an upper cabinet body, the upper cabinet body and the lower cabinet body are fixedly installed at the top and the bottom of the operation table respectively, an exhaust pipe installed in the upper cabinet body is arranged at the top of the operation table, and a horizontal table top located on the operation table is fixedly installed at the top of the lower cabinet body. A solid waste container is arranged in the lower cabinet body, and the top of the solid waste container extends to the top of the horizontal table top. The ventilation cabinet for the chemical experiment has the advantages that the solid waste collecting container can be sealed, volatile harmful substances are prevented from diffusing out, and meanwhile the solid waste collecting container can be replaced and packaged quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical experiments, in particular to a fume hood for chemical experiments. Background Art

[0002] As a basic facility in a chemical laboratory, the fume hood is mainly used to extract toxic and harmful gases, vapors, and tiny particles to prevent their diffusion and protect the personal safety of experimenters and the environment. During the experiment, various solid wastes are generally generated: such as filter heads, disposable glass containers, etc., some of which have volatile substances remaining. At present, the main way for experimenters to deal with them is to throw them into hazardous waste bins and collect and treat them uniformly. The disadvantage is that the solid waste collection container will continue to overflow with volatile substances, polluting the environment and affecting health. Or place them in the fume hood for a period of time before collecting and treating them, which can reduce pollution, but it will occupy the limited space of the fume hood.

[0003] Therefore, it is necessary to provide a new chemical experiment fume hood to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a chemical experiment fume hood which can seal a solid waste collection container to prevent volatile harmful substances from diffusing out, and at the same time the container for collecting the solid waste can be quickly replaced and packaged.

[0005] In order to solve the above technical problems, the utility model provides a fume hood for chemical experiments, comprising: a lower cabinet, an operating chamber and an upper cabinet, wherein the upper cabinet and the lower cabinet are respectively fixedly installed on the top and bottom of the operating chamber, the top of the operating chamber is provided with an exhaust duct installed in the upper cabinet, the top of the lower cabinet is fixedly provided with an operating table located on the operating chamber, the lower cabinet is provided with a solid waste container, and the top of the solid waste container extends to the top of the operating table.

[0006] Preferably, both the upper cabinet body and the lower cabinet body are provided with cabinet doors, and the cabinet door on the upper cabinet body is a glass door.

[0007] Preferably, the solid waste collection container comprises a connecting tube fixedly mounted on the operating table, a receiving bag is fixedly mounted on the bottom of the connecting tube by a buckle, a baffle is hinged inside the connecting tube, and the baffle is used to open and close the connecting tube.

[0008] Preferably, the buckle includes an iron ring nested on the outside of the connecting tube, and two mounting rods are symmetrically fixedly installed on the outside of the connecting tube, one end of a rope is fixedly installed on the mounting rod, and a semicircular magnetic block is fixedly installed on the other end of the rope, and the semicircular magnetic block is opposite to the iron ring, and the receiving bag is arranged between the iron ring and the semicircular magnetic block.

[0009] Preferably, a limiting ring is provided at the top of the connecting tube, the baffle is located below the limiting ring, a sealing ring is provided at the top of the baffle, the top of the sealing ring is in contact with the bottom of the limiting ring, one end of a spring is fixedly mounted on the inner wall of the connecting tube, and the other end of the spring is fixedly connected to the bottom of the baffle.

[0010] Preferably, the diameter of the connecting pipe is 15 cm.

[0011] Compared with the related art, the chemical experiment fume hood provided by the utility model has the following beneficial effects:

[0012] The utility model provides a fume hood for chemical experiments. By connecting an exhaust pipe to the exhaust system of a laboratory, toxic and harmful gases, steam and tiny particles generated in the experiment process can be discharged to prevent them from spreading, thereby protecting the personal safety of experimenters and the safety of the environment. By cooperating with a limit ring, a baffle, a sealing ring and a spring, the connecting pipe can be closed when not in use without hindering the solid waste generated in the experiment from being thrown into a receiving belt, thereby preventing volatile pollutants in the solid waste from overflowing. By means of an iron ring, a semicircular magnetic block, a mounting rod and a rope, the packaging and replacement of the receiving bag can be facilitated, and the utility model has good air tightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a preferred embodiment of a chemical experiment fume hood provided by the utility model;

[0014] Figure 2 for Figure 1 The cross-sectional structural diagram shown;

[0015] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0016] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown.

[0017] Numbers in the figure: 1, lower cabinet, 2, operating chamber, 3, upper cabinet, 4, operating table, 5, exhaust pipe, 6, receiving bag, 7, iron ring, 8, semicircular magnetic block, 9, mounting rod, 10, rope, 11, connecting pipe, 12, limiting ring, 13, baffle, 14, sealing ring, 15, spring. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of a chemical experiment fume hood provided by the utility model; Figure 2 for Figure 1 The cross-sectional structural diagram shown; Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown; Figure 4 for Figure 2 The enlarged schematic diagram of part B is shown. The fume hood for chemical experiments comprises: a lower cabinet 1, an operating chamber 2 and an upper cabinet 3, wherein the upper cabinet 3 and the lower cabinet 1 are fixedly mounted on the top and bottom of the operating chamber 2 respectively, the top of the operating chamber 2 is provided with an exhaust pipe 5 installed in the upper cabinet 3, the top of the lower cabinet 1 is fixedly installed with an operating table 4 located on the operating chamber 2, a solid waste container is provided in the lower cabinet 1, and the top of the solid waste container extends to the top of the operating table 4.

[0020] The upper cabinet body 3 and the lower cabinet body 1 are both provided with cabinet doors, and the cabinet door on the upper cabinet body 3 is a glass door.

[0021] The solid waste collection container includes a connecting pipe 11 fixedly mounted on the operating table 4 , a receiving bag 6 is fixedly mounted on the bottom of the connecting pipe 11 by a buckle, a baffle 13 is hinged inside the connecting pipe 11 , and the baffle 13 is used to open and close the connecting pipe 11 .

[0022] The buckle includes an iron ring 7 nested on the outside of the connecting tube 11, and two mounting rods 9 are symmetrically fixedly installed on the outside of the connecting tube 11. One end of a rope 10 is fixedly installed on the mounting rod 9, and a semicircular magnetic block 8 is fixedly installed on the other end of the rope 10. The semicircular magnetic block 8 is opposite to the iron ring 7, and the receiving bag 6 is arranged between the iron ring 7 and the semicircular magnetic block 8. The two ends of the two semicircular magnetic blocks 8 are in contact with each other, and the magnetic poles of the ends of the two semicircular magnetic blocks 8 that are in contact with each other are opposite.

[0023] A limiting ring 12 is provided at the top of the connecting tube 11, and the baffle 13 is located below the limiting ring 12. A sealing ring 14 is provided at the top of the baffle 13, and the top of the sealing ring 14 contacts the bottom of the limiting ring 12. One end of a spring 15 is fixedly mounted on the inner wall of the connecting tube 11, and the other end of the spring 15 is fixedly connected to the bottom of the baffle 13.

[0024] By means of the limiting ring 12, the baffle 13, the sealing ring 14 and the spring 15, the solid waste generated during the experiment can be directly stuffed into the connecting tube 11 and thus enter the containing belt 6. At the same time, when not in use, the connecting tube 11 can be closed to prevent the volatile pollutants in the solid waste from overflowing.

[0025] The diameter of the connecting pipe 11 is 15 cm.

[0026] Compared with the related art, the chemical experiment fume hood provided by the utility model has the following beneficial effects:

[0027] The utility model provides a fume hood for chemical experiments. By connecting an exhaust pipe 5 to the exhaust system of a laboratory, toxic and harmful gases, vapors, and tiny particles generated during the experiment can be discharged to prevent them from spreading, thereby protecting the personal safety of experimenters and the safety of the environment. By cooperating with a limit ring 12, a baffle 13, a sealing ring 14, and a spring 15, the connecting pipe 11 can be closed when not in use without hindering the solid waste generated during the experiment from being thrown into a receiving belt 6, thereby preventing volatile pollutants in the solid waste from overflowing. By means of an iron ring 7, a semicircular magnetic block 8, a mounting rod 9, and a rope 10, the packaging and replacement of the receiving bag 6 can be facilitated, while having good air tightness.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fume hood for chemical experiments, characterized in that: include: A lower cabinet, an operating cavity and an upper cabinet, wherein the upper cabinet and the lower cabinet are respectively fixedly mounted on the top and bottom of the operating cavity, the top of the operating cavity is provided with an exhaust duct installed in the upper cabinet, the top of the lower cabinet is fixedly mounted with an operating table located on the operating cavity, a solid waste container is provided in the lower cabinet, and the top of the solid waste container extends to the top of the operating table.

2. The chemical experiment fume hood according to claim 1, characterized in that: The upper cabinet body and the lower cabinet body are both provided with cabinet doors, and the cabinet door on the upper cabinet body is a glass door.

3. The chemical experiment fume hood according to claim 1, characterized in that: The solid waste collection container comprises a connecting pipe fixedly mounted on the operating table, a receiving bag is fixedly mounted on the bottom of the connecting pipe by a buckle, a baffle is hinged inside the connecting pipe, and the baffle is used to open and close the connecting pipe.

4. The chemical experiment fume hood according to claim 3, characterized in that: The buckle includes an iron ring nested on the outside of the connecting tube, and two mounting rods are symmetrically fixedly installed on the outside of the connecting tube. One end of a rope is fixedly installed on the mounting rod, and a semicircular magnetic block is fixedly installed on the other end of the rope. The semicircular magnetic block is opposite to the iron ring, and the receiving bag is arranged between the iron ring and the semicircular magnetic block.

5. The chemical experiment fume hood according to claim 3, characterized in that: A limiting ring is provided at the top of the connecting tube, the baffle is located below the limiting ring, a sealing ring is provided at the top of the baffle, the top of the sealing ring contacts the bottom of the limiting ring, one end of a spring is fixedly mounted on the inner wall of the connecting tube, and the other end of the spring is fixedly connected to the bottom of the baffle.

6. The chemical experiment fume hood according to claim 3, characterized in that: The diameter of the connecting pipe is 15 cm.

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