Laboratory desk fuming cupboard

Abstract

The utility model discloses a laboratory desk fuming cupboard, which relates to the technical field of laboratory fuming cupboards and comprises a cupboard body, a test cavity is arranged on the cupboard body, explosion-proof glass is slidably connected to a cavity opening of the test cavity, and flexible glove components are mounted on the explosion-proof glass at positions corresponding to a plurality of mounting holes; a storage plate is hinged to the front side of the air guide plate; the flexible glove assembly comprises a protective glove, a threaded sleeve is arranged at the end, close to the explosion-proof glass, of the protective glove, and the threaded sleeve penetrates through the mounting hole and is in threaded connection with a limiting ring plate. The storage plate is hinged to the front side of the air guide plate, experiment instruments can be placed on the storage plate, more experiment instruments can be placed in the experiment cavity, meanwhile, the situation that all the experiment instruments are placed on the experiment table top to affect operation can be avoided, connection between the flexible glove assembly and the explosion-proof glass is simple and convenient, and operation is convenient. The flexible glove assembly can be quickly detached and replaced after being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory fume hoods, in particular to a laboratory table fume hood. Background Art

[0002] Laboratory fume hoods are an essential type of laboratory furniture. They play the role of exhaust and ventilation in the laboratory, can protect the safety of users, and prevent the spread of pollutants in the experiment to the laboratory. When using it, people stand or sit in front of the cabinet, lower the glass door as much as possible, and put their hands under the door to conduct experiments in the cabinet, or open an operation hole on the glass door, and connect gloves to the inner end of the operation hole, and put their hands into the gloves to operate.

[0003] At present, when the laboratory table fume hood is in use, although its internal space is large, experimental instruments can only be placed on the laboratory table, resulting in fewer experimental instruments being placed. Since there are more experimental instruments placed on the table, the experimental operation is affected. At the same time, the gloves on the glass door are fixed to the glass door with glue, which makes it extremely inconvenient to replace the gloves when they are damaged, and the gloves cannot be quickly disassembled and replaced. Utility Model Content

[0004] The utility model aims to provide a laboratory table fume hood to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the utility model provides the following technical solution: a laboratory table fume hood, comprising:

[0006] A cabinet body, wherein a test cavity is provided on the cabinet body, an opening of the test cavity is slidably connected to an explosion-proof glass, a plurality of mounting holes are horizontally provided at the lower part of the explosion-proof glass, and a flexible glove assembly is installed at positions corresponding to the plurality of mounting holes on the explosion-proof glass;

[0007] An air guide plate, the air guide plate is fixed at the rear of the test chamber, an air guide passage is formed between the air guide plate and the rear wall and the upper wall of the test chamber, and a storage plate is hingedly connected to the front side of the air guide plate;

[0008] The flexible glove assembly comprises a protective glove, wherein one end of the protective glove close to the explosion-proof glass is provided with a threaded sleeve, and the threaded sleeve penetrates through the mounting hole and is threadedly connected to a limiting ring plate;

[0009] An exhaust duct is installed on the top of the cabinet, and an inner cavity of the exhaust duct is connected with the air guide channel.

[0010] Preferably, the air guide plate is provided with a plurality of ventilation holes;

[0011] A strip-shaped protrusion is fixed to the middle part of the front side of the air guide plate, and the storage plate includes a rectangular frame, and a grid is fixed inside the rectangular frame. The upper rear edge of the rectangular frame is hingedly connected to the strip-shaped protrusion by a hinge. The storage plate can be stored when not in use, and the setting of the grid is conducive to ventilation, so that the ventilation of the air guide plate will not be affected when the storage plate is stored.

[0012] Preferably, bearing baffles are fixed on both sides of the test chamber. When the storage plate is placed horizontally, the bottoms of the left and right ends of the storage plate are respectively in contact with the tops of the bearing baffles. The left and right ends of the storage plate are supported by the two bearing baffles, thereby improving the stability of the horizontal placement of the storage plate, thereby facilitating the carrying of experimental instruments.

[0013] Preferably, a telescopic sleeve is connected between the protective glove and the threaded sleeve, and the flexible glove assembly can be extended and shortened through the telescopic sleeve, which is more convenient to use and avoids the problem of gloves being too long and causing inconvenience in wearing. At the same time, it also avoids the problem of gloves being too short and causing inconvenience in operation.

[0014] Preferably, the protective gloves are made of anti-corrosion materials, and the telescopic sleeve is made of anti-corrosion elastic materials.

[0015] Preferably, one end of the threaded sleeve close to the telescopic sleeve is fixedly sleeved with a limiting rubber disc, and the limiting rubber disc abuts against the inner wall of the explosion-proof glass, thereby improving the sealing of the connection between the flexible glove assembly and the explosion-proof glass.

[0016] Preferably, a handle is fixed to the outside of the limiting ring plate, and a rubber pad is provided on the side of the limiting ring plate close to the explosion-proof glass. The handle can be used to conveniently apply force to the limiting ring plate, thereby facilitating the rotation of the limiting ring plate. The rubber pad can improve the sealing of the connection.

[0017] Preferably, an exhaust fan is installed at the bottom end of the exhaust duct, and the exhaust fan can improve the exhaust effect of the fume hood, which is conducive to the rapid discharge of harmful gases in the fume hood.

[0018] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0019] 1. By hingedly connecting a storage board on the front side of the air guide plate, experimental instruments can be placed on the storage board, so that more experimental instruments can be placed in the test chamber, and at the same time, it can avoid placing all experimental instruments on the experimental table to affect the operation;

[0020] 2. A flexible glove assembly is provided, and the flexible glove assembly is connected to the explosion-proof glass through a threaded sleeve and a limiting ring plate thereon. The connection is simple and convenient, so that the flexible glove assembly can be quickly disassembled and replaced after being damaged;

[0021] 3. By connecting a telescopic sleeve between the protective glove and the threaded sleeve, the flexible glove assembly can be extended and shortened through the telescopic sleeve, which is more convenient to use and avoids the problem of inconvenience in wearing caused by the gloves being too long, and at the same time, avoids the problem of inconvenience in operation caused by the gloves being too short. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the explosion-proof glass of the utility model after opening;

[0025] Figure 3 This is a schematic diagram of the connection between the air guide plate and the storage plate of the utility model;

[0026] Figure 4 This is a schematic diagram of the explosion-proof glass of the utility model;

[0027] Figure 5 This is a schematic diagram of the connection between the explosion-proof glass and the flexible glove assembly of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the flexible glove assembly of the utility model.

[0029] Description of reference numerals:

[0030] 1. Cabinet; 2. Test chamber; 3. Explosion-proof glass; 4. Mounting hole; 5. Flexible glove assembly; 6. Air guide plate; 7. Storage plate; 8. Protective gloves; 9. Threaded sleeve; 10. Limiting ring plate; 11. Exhaust duct; 12. Strip-shaped protrusion; 13. Rectangular frame; 14. Grid; 15. Load-bearing baffle; 16. Telescopic sleeve; 17. Limiting rubber disc; 18. Handle; 19. Rubber pad. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The utility model provides Figure 1 , Figure 2 and Figures 4 to 6 A laboratory table fume hood is shown, comprising:

[0033] A cabinet body 1 is provided with a test cavity 2, an opening of the test cavity 2 is slidably connected with an explosion-proof glass 3, a lower portion of the explosion-proof glass 3 is provided with a plurality of mounting holes 4 in a transverse direction, and a flexible glove assembly 5 is installed at positions of the explosion-proof glass 3 corresponding to the plurality of mounting holes 4;

[0034] An air guide plate 6 is fixed to the rear of the test chamber 2, and an air guide passage is formed between the air guide plate 6 and the rear wall and the upper wall of the test chamber 2;

[0035] The flexible glove assembly 5 includes a protective glove 8, and a threaded sleeve 9 is provided at one end of the protective glove 8 close to the explosion-proof glass 3. The threaded sleeve 9 passes through the mounting hole 4 and is threadedly connected to a limiting ring plate 10;

[0036] The exhaust duct 11 is installed on the top of the cabinet 1, and the inner cavity of the exhaust duct 11 is connected with the air guide channel.

[0037] The air guide plate 6 is provided with a plurality of ventilation holes;

[0038] A telescopic sleeve 16 is connected between the protective glove 8 and the threaded sleeve 9. The telescopic sleeve 16 can be used to extend and shorten the flexible glove assembly 5, making it more convenient to use and avoiding the problem of gloves being too long and causing inconvenience in wearing. At the same time, it also avoids the problem of gloves being too short and causing inconvenience in operation.

[0039] The protective gloves 8 are made of anti-corrosion materials, and the telescopic sleeve 16 is made of anti-corrosion elastic materials.

[0040] One end of the threaded sleeve 9 close to the telescopic sleeve 16 is fixedly sleeved with a limiting rubber disc 17, and the limiting rubber disc 17 is in contact with the inner wall of the explosion-proof glass 3, so that the sealing of the connection between the flexible glove assembly 5 and the explosion-proof glass 3 can be improved.

[0041] A handle 18 is fixed to the outside of the limiting ring plate 10, and a rubber pad 19 is provided on the side of the limiting ring plate 10 close to the explosion-proof glass 3. The handle 18 facilitates the application of force on the limiting ring plate 10, thereby facilitating the rotation of the limiting ring plate 10. The rubber pad 19 can improve the sealing of the connection.

[0042] An exhaust fan is installed at the bottom end of the exhaust duct 11. The exhaust fan can improve the exhaust effect of the fume hood and is conducive to the rapid discharge of harmful gases in the fume hood.

[0043] In the utility model, a plurality of flexible glove assemblies 5 are installed on the explosion-proof glass 3. When performing dangerous operations, the explosion-proof glass 3 can be closed to cover the cavity opening of the test cavity 2, and the hand can be inserted into the flexible glove assembly 5 for operation. The flexible glove assembly 5 is provided with a telescopic sleeve 16, and the flexible glove assembly 5 can be extended and shortened by the telescopic sleeve 16, which is more convenient to use and avoids the problem of inconvenience in wearing caused by too long gloves. At the same time, it also avoids the problem of inconvenience in operation caused by too short gloves. When the flexible glove assembly 5 is damaged and needs to be replaced, the rotating limit ring plate 10 , so that the limiting ring plate 10 is separated from the threaded sleeve 9, and then the protective glove 8 is pulled to pull the threaded sleeve 9 out of the mounting hole 4 on the explosion-proof glass 3, and then a new flexible glove assembly 5 is replaced, and the threaded sleeve 9 on the new flexible glove assembly 5 passes through the mounting hole 4 from the inside of the explosion-proof glass 3, and then the limiting ring plate 10 is threadedly sleeved on the threaded sleeve 9 from the outside of the explosion-proof glass 3, and the limiting ring plate 10 is tightened, so that the connection between the flexible glove assembly 5 and the explosion-proof glass 3 can be achieved. The connection is simple and convenient, so that the flexible glove assembly 5 can be quickly disassembled and replaced after being damaged.

[0044] like Figure 2 and Figure 3 As shown, a storage plate 7 is hingedly connected to the front side of the air guide plate 6, a strip-shaped protrusion 12 is fixed to the middle of the front side of the air guide plate 6, the storage plate 7 includes a rectangular frame 13, a grid 14 is fixed inside the rectangular frame 13, and the upper rear edge of the rectangular frame 13 is hingedly connected to the strip-shaped protrusion 12 by a hinge. The storage plate 7 can be stored when not in use, and the setting of the grid 14 is conducive to ventilation, so that the ventilation of the air guide plate 6 will not be affected when the storage plate 7 is stored.

[0045] The left and right sides of the test chamber 2 are fixed with bearing baffles 15. When the storage plate 7 is placed horizontally, the bottoms of the left and right ends of the storage plate 7 are respectively in contact with the tops of the bearing baffles 15. The left and right ends of the storage plate 7 are supported by the two bearing baffles 15, which improves the stability of the horizontal placement of the storage plate 7, thereby facilitating the loading of experimental instruments.

[0046] In the utility model, a storage plate 7 is hinged on the strip-shaped protrusion 12 on the front side of the air guide plate 6, and experimental instruments can be placed on the storage plate 7, so that more experimental instruments can be placed in the test chamber 2, and at the same time, it can be avoided that all the experimental instruments are placed on the experimental table to affect the operation. The storage plate 7 can be stored when not in use. The storage plate 7 is composed of a rectangular frame 13 and a grid 14 fixed in the rectangular frame 13. The setting of the grid 14 does not affect the circulation of gas in the test chamber 2, and the ventilation of the air guide plate 6 is not affected when the storage plate 7 is stored.

[0047] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A laboratory table fume hood, characterized in that: include: A cabinet body (1), wherein a test cavity (2) is provided on the cabinet body (1), an opening of the test cavity (2) is slidably connected to an explosion-proof glass (3), a plurality of mounting holes (4) are transversely provided at the lower portion of the explosion-proof glass (3), and a flexible glove assembly (5) is installed at positions on the explosion-proof glass (3) corresponding to the plurality of mounting holes (4); An air guide plate (6), the air guide plate (6) being fixed to the rear of the test chamber (2), an air guide passage being formed between the air guide plate (6) and the rear wall and the upper wall of the test chamber (2), and a storage plate (7) being hingedly connected to the front side of the air guide plate (6); The flexible glove assembly (5) comprises a protective glove (8), wherein one end of the protective glove (8) close to the explosion-proof glass (3) is provided with a threaded sleeve (9), and the threaded sleeve (9) passes through the mounting hole (4) and is threadedly connected to a limiting ring plate (10); An exhaust duct (11), wherein the exhaust duct (11) is installed on the top of the cabinet (1), and the inner cavity of the exhaust duct (11) is connected to the air guide duct.

2. A laboratory table fume hood according to claim 1, characterized in that: The air guide plate (6) is provided with a plurality of ventilation holes; A strip-shaped protrusion (12) is fixed in the middle of the front side of the wind deflector (6); the storage plate (7) comprises a rectangular frame (13); a grid (14) is fixed inside the rectangular frame (13); and the upper rear edge of the rectangular frame (13) is hingedly connected to the strip-shaped protrusion (12) via a hinge.

3. A laboratory table fume hood according to claim 1, characterized in that: Bearing baffles (15) are fixed on both the left and right sides of the test chamber (2).

4. A laboratory table fume hood according to claim 1, characterized in that: A telescopic sleeve (16) is connected between the protective glove (8) and the threaded sleeve (9).

5. A laboratory table fume hood according to claim 4, characterized in that: The protective gloves (8) are made of anti-corrosion materials, and the telescopic sleeve (16) is made of anti-corrosion elastic materials.

6. A laboratory table fume hood according to claim 1, characterized in that: One end of the threaded sleeve (9) close to the telescopic sleeve (16) is fixedly sleeved with a limiting rubber disc (17).

7. A laboratory table fume hood according to claim 1, characterized in that: A handle (18) is fixed to the outer side of the limiting ring plate (10), and a rubber pad (19) is provided on the side of the limiting ring plate (10) close to the explosion-proof glass (3).

8. A laboratory table fume hood according to claim 1, characterized in that: An exhaust fan is installed at the bottom end of the exhaust duct (11).

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