CN210230960U

CN210230960U - Laboratory fume chamber

Info

Publication number: CN210230960U
Application number: CN201920960722.XU
Authority: CN
Inventors: Ziyi Zhou; 周子轶; Kun Liu; 刘昆
Original assignee: 周子轶
Current assignee: BEIJING CHENGWEI BORUI LAB-EQUIPMENT Co.,Ltd.; Liaoning Chengwei laboratory equipment Co., Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-04-03
Anticipated expiration: 2029-06-24

Abstract

The utility model relates to a laboratory ventilation cabinet, which comprises a workbench, a left side plate, a right side plate, a fan cover, a top plate, a cabinet body, a back plate and a protective door; the left side plate, the right side plate, the top plate, the workbench, the protective door and the back plate enclose a cavity, the fan cover is fixedly connected to the top plate, and the cabinet body is fixedly installed at the bottom of the workbench; a side air outlet component is arranged on the ventilation cabinet; side air outlet assemblies are arranged on the left side plate and the right side plate; the side air outlet assembly comprises a side air outlet cylinder arranged on the left side plate, a lateral fan arranged on the side air outlet cylinder and a side outlet arranged on the side air outlet cylinder; side guard plates are respectively arranged on the left side plate and the right side plate in the same direction; the side air outlet cylinder is detachably connected to the side guard plate. The utility model discloses when having and opening the guard gate, blow in to the cavity automatically, prevent the effect that harmful gas in the fume chamber escaped from workstation side stand department.

Description

Laboratory fume chamber

Technical Field

The utility model belongs to the technical field of laboratory ventilation equipment's technique and specifically relates to a laboratory fume chamber is related to.

Background

The open laboratory bench is used basically in current chemical experiment process, and when carrying out the chemical experiment, produces some poisonous and harmful substance easily, and current laboratory bench can not carry out fine protection, and long-term operation experiment can be to the healthy harm of experimenter.

Chinese patent publication No. CN105920479A discloses a fume chamber, including left side board, right side board, air exhauster, baffle, storage tank, workstation, glass door and guide plate, the both ends at the workstation are installed respectively to left side board and right side board, and the baffle is installed between left side board and right side board, and the both sides of baffle are equipped with glass door and guide plate respectively, and the end of breathing in of air exhauster stretches into in the cavity, and the exhaust end of air exhauster stretches out outside the cavity, and storage tank fixed mounting is in the bottom of workstation. When the fume hood in the above-mentioned patent is used, the toxic gas that produces in the experiment is taken away to the air exhauster.

The above prior art solutions have the following drawbacks: when the exhaust fan extracts the air in the cavity, the air pressure in the cavity changes, so that the outside air can enter from the opening on the front side of the ventilation cabinet. But when discharging the harmful gas in the cavity, depend on the convulsions efficiency of air exhauster completely, in addition in actual air exhauster arrangement, the air exhauster is generally arranged outdoors for the operational aspect of air exhauster can't obtain effectual monitoring, in case the air exhauster appears damaging and leads to the circumstances such as power decline, will influence taking out to harmful gas in the cavity.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a laboratory fume chamber, it has the effect that can blow the cavity internal gas for harmful gas's discharge in the cavity.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a laboratory ventilation cabinet comprises a workbench, a left side plate, a right side plate, a fan cover, a top plate, a cabinet body, a back plate and a protective door;

a side air outlet component is arranged on the ventilation cabinet; side air outlet assemblies are arranged on the left side plate and the right side plate;

the side air outlet assembly comprises a side air outlet cylinder arranged on the left side plate, a lateral fan arranged on the side air outlet cylinder and a plurality of side outlets arranged on the side air outlet cylinder; one side of the side air outlet cylinder, which is far away from the side fan, is closed;

after the side air outlet barrel is arranged, the side outlet is arranged on the surface of the side air outlet barrel facing to one side of the rear back plate;

side guard plates are respectively arranged on the left side plate and the right side plate in the same direction; the side air outlet cylinder is detachably connected to the side guard plate.

Through adopting above-mentioned technical scheme, when the guard gate on the fume chamber was opened, the side direction fan started, and wind among the side direction fan can blow into the side play dryer, and the wind that gets into in the side play dryer gets into the cavity from the side exit, prevents that harmful gas is reverse to be close door opening department, also can blow the harmful gas in the fume chamber, blows away harmful gas, makes things convenient for harmful gas's row. Through setting up the side air-out subassembly, when the side direction fan started, the wind that the side direction fan blew out got into the side play wind section of thick bamboo, and the wind that gets into in the side play wind section of thick bamboo gets into the cavity from side exit, bloies in the cavity, lets the harmful gas that produces during the experiment discharge more easily, can not reveal from the guard gate.

The utility model discloses further set up to: the side guard plates are in plane contact with the left side plate or the right side plate, and a first clamping plate and a second clamping plate are arranged on the surfaces of the two side guard plates in contact with the left side plate or the right side plate in a protruding mode.

Through adopting above-mentioned technical scheme, when the staff installs the side guard plate on left side board or right side board, the staff inserts between first cardboard and the second cardboard with left side board or right side board, let first cardboard and second cardboard clip left side board or right side board, make the side guard plate can be quick install on left side board or right side board, the staff also can take out the side guard plate from left side board or right side board through drawing hard, thereby when the fume chamber breaks down, the staff can be quick demolish the side guard plate, and then demolish the guard gate fast.

The utility model discloses further set up to: a third clamping plate is vertically and convexly arranged on the first clamping plate, and a gap is formed between the third clamping plate and the side guard plate;

the connecting plate fixedly connected with the side air outlet barrel is installed on the first clamping plate and the third clamping plate, sliding strips are arranged on the connecting plate in a protruding mode at positions in contact with the first clamping plate and the third clamping plate, and sliding grooves connected with the sliding strips in a sliding mode are formed in the positions in contact with the sliding strips of the connecting plate on the first clamping plate and the third clamping plate.

Through adopting above-mentioned technical scheme, the staff can link together the first cardboard that sets up on connecting plate and the side guard plate and the third cardboard that slide when installing the side play wind cone, lets being connected between side play wind cone and the left side board for can dismantling and be connected to when demolising the side play wind cone, the staff only need extract the side guard plate, just can remove the fixed of side play wind cone, makes the staff can demolish the side play wind cone.

The utility model discloses further set up to: the slide bar is arranged in a T shape or a wedge shape.

Through adopting above-mentioned technical scheme, can let the connection between draw runner and the spout more firm.

The utility model discloses further set up to: the arrangement direction of the side outlet is parallel to the left side plate.

Through adopting above-mentioned technical scheme for the wind that the side outlet blew out keeps the parallel and level with the left side board, can blow with the harmful gas of the wind that the subassembly of blowing blew out in the chamber jointly, lets harmful gas discharge more easily, sets up the direction of arranging of side outlet in addition to being parallel with the left side board, makes the material among the harmful gas can not bond on the left side board.

The utility model discloses further set up to: the lateral fan is arranged outside the top plate.

Through adopting above-mentioned technical scheme for the wind that the side fan insufflates in the cavity is clean air.

The utility model discloses further set up to: an arc baffle is further arranged on the connecting plate.

Through adopting above-mentioned technical scheme, cowl limits the direction of the exhaust wind of side export, and cowl sets up on the face of seting up the side export on the side play dryer in addition, can block the wind of side export for the side export exhaust wind keeps the parallel with the left side board more easily.

The utility model discloses further set up to: an air guide assembly is arranged in the cavity.

Through adopting above-mentioned technical scheme, can be convenient for guide the interior gas of chamber and discharge fast.

The utility model discloses further set up to: the air guide assembly comprises a first sub-plate and a second sub-plate; the first sub-plate and the second sub-plate are sequentially arranged from bottom to top; the first board that divides passes through the reinforcement to be fixed in on the backplate, and has the clearance between first board and the backplate, has the distance between first board and the workstation.

Through adopting above-mentioned technical scheme, the harmful gas that produces in the experiment passes through first minute board and second minute board earlier when discharging, and just first minute board and second minute board can block harmful gas's backward flow, let the staff safer when the experiment.

The utility model discloses further set up to: the reinforcing member is selected to be a screw.

Through adopting above-mentioned technical scheme, the staff is more convenient and fast when installing second subplate and second subplate on the backplate.

To sum up, the utility model discloses a beneficial technological effect does:

1. by arranging the side air outlet assembly, air blown out by the side fan enters the cavity and blows harmful gas in the fume hood, so that airflow balance is formed, and the harmful gas is conveniently discharged;

2. by arranging the side guard plate, the side air outlet assembly can be conveniently assembled and disassembled;

3. through setting up the air guide subassembly, let the harmful gas in the cavity be convenient for discharge.

Drawings

FIG. 1 is a schematic view of a fume hood according to the present embodiment;

FIG. 2 is a schematic view of the fume hood with the protective door removed in this embodiment;

FIG. 3 is a schematic view of the ventilation cabinet with the protective door lifted;

FIG. 4 is a schematic structural view of the side guard plate disposed on the ventilation cabinet in this embodiment;

FIG. 5 is a schematic view of the connection between the side guard plate and the left side plate in this embodiment;

fig. 6 is a schematic view of the side air outlet assembly in the present embodiment;

FIG. 7 is a schematic view of the structure of the air guide assembly of this embodiment.

In the figure, 1, a workbench; 2. a left side plate; 3. a right side plate; 4. a fan housing; 5. a top plate; 6. a cabinet body; 7. a back panel; 8. a protective door; 9. a chamber; 10. a side air outlet assembly; 1001. a side air outlet cylinder; 1002. a lateral fan; 1003. a side outlet; 11. an air guide assembly; 1101. a first sub plate; 1102. a second board; 1103. a reinforcement; 12. a side guard plate; 13. a first clamping plate; 14. a second clamping plate; 15. a third clamping plate; 16. a connecting plate; 17. a slide bar; 18. a chute; 19. an arc-shaped baffle plate; 20. a glass window.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a laboratory fume chamber, including workstation 1, left side board 2, right side board 3, fan housing 4, roof 5, the cabinet body 6, postnotum 7 and guard gate 8.

Referring to fig. 3, both ends about workstation 1 are installed respectively to left side board 2 and right side board 3, roof 5 is installed between left side board 2 and right side board 3, the left side and the left side board 2 fixed link of roof 5, the right side and the right side board 3 fixed connection of roof 5, guard gate 8 is installed in the front side of roof 5, the fixed backplate 7 that is equipped with in rear side of roof 5, left side board 2, right side board 3, roof 5, workstation 1, guard gate 8 and backplate 7 enclose into a cavity 9, the fan housing is fixed on the roof, cabinet 6 fixed mounting is in the bottom of workstation 1.

In order to more effectively prevent the air in the chamber 9 from being discharged from the outlet of the table 1, referring to fig. 1 and 4, a side air outlet assembly 10 is provided in the register. Wherein, all be provided with side air-out subassembly 10 on left side board 2 and right side board 3.

Specifically, referring to fig. 5 and 6, taking the left side plate 2 as an example, the side air outlet assembly 10 includes a side air outlet cylinder 1001 disposed on the left side plate 2, a side air blower 1002 mounted on the side air outlet cylinder 1001, and a side outlet 1003 disposed on the side air outlet cylinder 1001. The side air outlet barrel 1001 is integrally rectangular, when the side air outlet barrel 1001 is arranged on the left side plate 2, the surface of the side air outlet barrel 1001 contacting with the left side plate 2 is a plane, and one side of the side air outlet barrel departing from the lateral fan is closed. After the side air outlet cylinder 1001 is arranged, the side outlets 1003 are arranged on the surface of the side air outlet cylinder 1001 facing the back plate, a plurality of side outlets 1003 are arranged on the side air outlet cylinder 1001, and the side outlets 1003 are arranged on the side air outlet cylinder 1001 at equal intervals along the length direction of the side air outlet cylinder 1001. Through setting up side air-out subassembly 10, when side fan 1002 starts, the wind that side fan 1002 blew out gets into side play wind cylinder 1001, and the wind that gets into in the side play wind cylinder 1001 gets into cavity 9 from side export 1003, bloies in the cavity 9, lets the harmful gas that produces during the experiment discharge more easily, can not follow protective door 8 and reveal.

When the guard gate 8 on the fume chamber is opened, the side fan 1002 starts, and wind in the side fan 1002 can blow into in the side air-out cylinder 1001, and the wind that gets into in the side air-out cylinder 1001 is followed side export 1003 and is got into cavity 9, prevents that harmful gas is reverse to be close door department, also can blow the harmful gas in the fume chamber, blows away harmful gas, makes things convenient for harmful gas's row.

Wherein, the direction of arranging of side export 1003 is parallel with left side board 2 for the wind that side export 1003 blew out keeps the parallel and level with left side board 2, can blow the harmful gas in the chamber 9 with the wind that subassembly 10 blew out jointly, lets harmful gas discharge more easily, sets up the direction of arranging of side export 1003 to be parallel with left side board 2 moreover, makes the material in the harmful gas can not bond on left side board 2. The side fan 1002 is disposed outside the top plate 5 so that the wind blown into the chamber 9 by the side fan 1002 is clean air.

The side air outlet cylinder 1001 can be fixedly connected to the left side plate 2, and the arrangement of the side air outlet cylinder 1001 can be firmer.

In order to facilitate the worker to disassemble and assemble the side air outlet cylinder 1001, the side air outlet cylinder 1001 and the left side plate 2 are detachably connected with each other in combination with fig. 5 and 6. Specifically, a third clamping plate 15 with the same length as the first clamping plate 13 is vertically arranged on the first clamping plate 13 in a protruding mode, and a gap exists between the third clamping plate 15 and the side protection plate 12. A connecting plate 16 fixedly connected with the side air outlet barrel 1001 is mounted on the first clamping plate 13 and the third clamping plate 15, a sliding strip 17 is convexly arranged at a position on the connecting plate 16, which is in contact with the first clamping plate 13 and the third clamping plate 15, a sliding groove 18 connected with the sliding strip 17 in a sliding manner is arranged at a position on the first clamping plate 13 and the third clamping plate 15, which is in contact with the sliding strip 17 of the connecting plate 16, the sliding strip 17 can be T-shaped or wedge-shaped, and is T-shaped in the embodiment. The sliding strip 17 is arranged along the length direction of the connecting plate 16, and the sliding groove 18 is arranged along the length direction of the first clamping plate 13 and the third clamping plate 15. When the staff was at installation side air-out section of thick bamboo 1001, can link together the mode of connecting through sliding the first cardboard 13 that sets up on connecting plate 16 and the side guard plate 12 and third cardboard 15, let the side air-out section of thick bamboo 1001 and the left side board 2 between be connected for can dismantling and be connected to when dismantling side air-out section of thick bamboo 1001, the staff only need extract side guard plate 12, just can remove the fixed of side air-out section of thick bamboo 1001, make the staff can dismantle side air-out section of thick bamboo 1001.

The arc-shaped baffle plate 19 is further arranged on the connecting plate 16, the arc-shaped baffle plate 19 limits the direction of the air discharged from the side outlet 1003, and the arc-shaped baffle plate 19 is arranged on the surface, provided with the side outlet 1003, of the side air outlet cylinder 1001 and can block the air discharged from the side outlet 1003, so that the air discharged from the side outlet 1003 is more easily kept parallel to the left side plate 2.

Referring to fig. 7, in order to facilitate rapid discharge of the gas in the guide chamber 9, an gas guide 11 is provided in the chamber 9, and the gas guide 11 includes a first partition 1101 and a second partition 1102. The air guide 11 is secured to the backplate 7 by a stiffener 1103. The first board 1101 and the second board 1102 are arranged from bottom to top in sequence. The reinforcing members 1103 are selected as screws.

The first board 1101 is fixed to the backplate 7 by three reinforcing members 1103, and a gap exists between the first board 1101 and the backplate 7, and a certain distance exists between the first board 1101 and the workbench 1.

The distance between the second plate 1102 and the backplate 7 is greater than the distance between the first plate 1101 and the backplate 7, the lower end of the second plate 1102 is inclined in a direction away from the backplate 7, and a gap for gas to pass through is formed between the first plate 1101 and the second plate 1102. The upper end of the second section 1102 is provided with a groove, and the second section 1102 is fixed on the back plate 7 by using a reinforcing member 1103 penetrating through the groove.

The upper end of the second section plate 1102 is inclined in a direction away from the back panel 7, the upper end of the second section plate 1102 abuts against the top panel 5, two grooves are formed in the upper end of the second section plate 1102, the second section plate 1102 is fixed to the top panel 5 through the grooves by using the reinforcing members 1103, and a gap also exists between the second section plate 1102 and the top panel 5. The suction end of the suction machine is disposed between the top plate 5 and the second division plate 1102. In this embodiment, the fastening member 1103 is a bolt. Through setting up air guide assembly 11, can enough make things convenient for the harmful gas in the cavity 9 to discharge, also can shelter from the end of bleeding of air extractor, let the end of bleeding of air extractor have good disguise.

Be provided with the light on roof 5, can provide the light source for in the cavity 9, can be more clear see experimental apparatus when letting the staff carry out the experiment.

With reference to fig. 4 and 5, the side guard plates 12 are respectively installed on the left side plate 2 and the right side plate 3 in the same direction, and when the two side guard plates 12 are installed, the two side guard plates 12 block the edge of the protection door 8, so that the two sides of the protection door 8 can be blocked by the side guard plates 12 when the ventilation cabinet is used, and therefore harmful gas is prevented from leaking from the edge of the protection door 8. An inner cavity is formed in the side guard plate 12 along the length direction of the side guard plate 12, and two opposite surfaces of the two side guard plates 12 are arc surfaces bent outwards. The contact surface of the two side protection plates 12 and the left side plate 2 or the right side plate 3 is a plane, a first clamping plate 13 and a second clamping plate 14 are arranged on the contact surface of the two side protection plates 12 and the left side plate 2 or the right side plate 3 in a protruding mode, the first clamping plate 13 and the second clamping plate 14 are arranged in parallel, the distance between the first clamping plate 13 and the second clamping plate 14 is the same as the thickness of the left side plate 2 or the right side plate 3, when a worker installs the side protection plates 12 on the left side plate 2 or the right side plate 3, the worker inserts the left side plate 2 or the right side plate 3 between the first clamping plate 13 and the second clamping plate 14 to enable the first clamping plate 13 and the second clamping plate 14 to clamp the left side plate 2 or the right side plate 3, so that the side protection plates 12 can be installed on the left side plate 2 or the right side plate 3 quickly, the worker can take the side protection plates 12 out of the left side plate 2 or the right side, thus when the fume chamber breaks down, the staff can remove the side guard plate 12 fast, and then remove the guard gate 8 fast. The width of the first card 13 is arranged to be greater than the width of the second card 14 and the first card 13 is arranged within the cavity 9. The second catch plate 14 is provided at the edge of the skirt 12 and the first catch plate 13 is provided at an intermediate position of the skirt 12.

Referring to fig. 2, a glass window 20 is fixedly connected to a lower side of the top plate 5 at a position close to the side guard plate 12, an arrangement direction of the glass window 20 is parallel to an arrangement direction of the protective door 8, and the protective door 8 is disposed outside the glass window 20.

The implementation principle of the embodiment is as follows: when the staff is experimenting in carrying out the fume chamber, open side direction fan 1002, blow in the cavity 9 of fume chamber, let the air current in the cavity 9 keep flowing to the direction of fan housing 4, the harmful gas who produces when preventing to experiment reveals from the exit of cavity 9.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A laboratory ventilation cabinet comprises a workbench (1), a left side plate (2), a right side plate (3), a fan cover (4), a top plate (5), a cabinet body (6), a back plate (7) and a protective door (8);

the method is characterized in that: a side air outlet component (10) is arranged on the ventilation cabinet; side air outlet assemblies (10) are arranged on the left side plate (2) and the right side plate (3);

the side air outlet assembly (10) comprises a side air outlet cylinder (1001) arranged on the left side plate (2), a side fan (1002) arranged on the side air outlet cylinder (1001) and a plurality of side outlets (1003) arranged on the side air outlet cylinder (1001); one side of the side air outlet cylinder (1001) departing from the side fan (1002) is closed;

after the side air outlet cylinder (1001) is arranged, the side outlet (1003) is arranged on the surface of the side air outlet cylinder (1001) facing to one side of the back plate;

the left side plate (2) and the right side plate (3) are respectively provided with a side guard plate (12) in the same direction; the side air outlet cylinder (1001) is detachably connected to the side guard plate (12).

2. The laboratory fumehood of claim 1 wherein: the contact surface of the two side protection plates (12) and the left side plate (2) or the right side plate (3) is a plane, and a first clamping plate (13) and a second clamping plate (14) are arranged on the contact surface of the two side protection plates (12) and the left side plate (2) or the right side plate (3) in a protruding mode.

3. The laboratory fumehood of claim 2 wherein: a third clamping plate (15) is vertically and convexly arranged on the first clamping plate, and a gap is formed between the third clamping plate (15) and the side guard plate (12);

install on first cardboard (13) and third cardboard (15) and incline out connecting plate (16) that tuber pipe (1001) fixed connection is in the same place, the position department protrusion that contacts with first cardboard (13) and third cardboard (15) on connecting plate (16) is provided with draw runner (17) to position department of contacting with draw runner (17) of connecting plate (16) on first cardboard (13) and third cardboard (15) offers spout (18) of being connected with draw runner (17) slide.

4. A laboratory fume hood according to claim 3 wherein: the sliding strip (17) is arranged in a T shape or a wedge shape.

5. The laboratory fumehood of claim 1 wherein: the arrangement direction of the side outlet (1003) is parallel to the left side plate (2).

6. The laboratory fumehood of claim 1 wherein: the lateral fan (1002) is arranged outside the top plate (5).

7. A laboratory fume hood according to claim 3 wherein: an arc-shaped baffle (19) is further arranged on the connecting plate (16).

8. The laboratory fumehood of claim 1 wherein: a chamber (9) is enclosed by the workbench (1), the left side plate (2), the right side plate (3), the top plate (5), the back plate (7) and the protective door (8), and an air guide assembly (11) is arranged in the chamber (9).

9. The laboratory fumehood of claim 8 wherein: the air guide assembly (11) comprises a first sub-plate (1101) and a second sub-plate (1102);

the first sub-plate (1101) and the second sub-plate (1102) are sequentially arranged from bottom to top; the first sub-board (1101) is fixed on the rear backboard (7) through a reinforcing member (1103), a gap exists between the first sub-board (1101) and the rear backboard (7), and a distance exists between the first sub-board (1101) and the workbench (1).

10. The laboratory fumehood of claim 9 wherein: the reinforcing member (1103) is selected to be a screw.