CN211464231U

CN211464231U - Fume hood for laboratory

Info

Publication number: CN211464231U
Application number: CN201922334546.1U
Authority: CN
Inventors: 郭勇
Original assignee: Beijing Meiyinlai Laboratory Engineering Technology Co ltd
Current assignee: Beijing Meiyinlai Laboratory Engineering Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-11
Anticipated expiration: 2029-12-23

Abstract

The utility model relates to a fume chamber is used in laboratory belongs to the experimental facilities field, and its technical scheme main points are including the cabinet body and workstation, cabinet body fixed mounting is on the workstation, and the inside of the cabinet body is provided with guide assembly, be formed with exhaust duct between the back of guide assembly and the cabinet body, the intercommunication has been seted up on the top of the cabinet body exhaust duct's vent, and be equipped with the exhaust fan in vent department, guide assembly includes guide plate, well guide plate and lower guide plate, and wherein, the top of going up the guide plate sets up towards the internal slope of cabinet, and well guide plate and the vertical setting of lower guide plate, and the equal rigid coupling in both sides of the two has the cross axle, and the both sides of the cabinet body are formed with erection space, be provided with in the erection space in the drive guide plate and the. The utility model has the advantages that can be as required, the convenient angle to the guide plate is adjusted to guarantee good exhaust effect.

Description

Fume hood for laboratory

Technical Field

The utility model belongs to the technical field of the experimental facilities and specifically relates to a fume chamber is used in laboratory.

Background

At present, set the fume chamber gradually in the chemistry experiment room, the fume chamber can catch, hold and discharge the harmful gas that produces in the experimentation, guarantees that laboratory staff's is healthy, builds safe experimental environment.

In the prior art, the guide plate of the laboratory fume hood is usually fixedly arranged on the back plate of the cabinet body, so that the angle of the guide plate is not favorable for adjusting, and when an air flow channel formed by the guide plate is too large, the treatment effect on gas is poor; when gas concentration is too big, the flow channel is smaller and then the gas flow rate is lower, and the using effect of the ventilation cabinet for the laboratory is influenced, so that the improvement is waited for.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fume chamber is used in laboratory, its advantage the utility model has the advantages that can be as required, the convenient angle to the guide plate is adjusted to guarantee good exhaust effect.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a fume chamber is used in laboratory, includes the cabinet body and workstation, cabinet body fixed mounting is on the workstation, and the inside of the cabinet body is provided with the diversion assembly, be formed with exhaust passage between the back of the diversion assembly and the cabinet body, the intercommunication has been seted up on the top of the cabinet body exhaust passage's vent, and be equipped with exhaust fan, its characterized in that in vent department: the water conservancy diversion subassembly includes guide plate, well guide plate and lower guide plate, and wherein, the top of going up the guide plate sets up towards the internal slope of cabinet, and well guide plate and lower guide plate are vertical to be set up, and the equal rigid coupling in both sides of the two has the cross axle, and the both sides of the cabinet body are formed with the erection space, be provided with in the drive guide plate and lower guide plate around the power component of cross axle swing jointly in the erection space.

Through adopting above-mentioned technical scheme, it is vertical with lower guide plate to be well guide plate, the equal rigid coupling in both sides of well guide plate and lower guide plate has the cross axle, and the both sides of the cabinet body are formed with the installation interval, be provided with power component in the installation interval, rotate through power component drive cross axle, thereby can adjust the angle of centering guide plate and lower guide plate, and then can change exhaust passage's size as required, make the harmful gas that produces in the experimentation can comparatively quick discharge.

The utility model discloses further set up to: the power assembly comprises a motor, a vertical shaft, a first bevel gear and a second bevel gear, wherein the output of the motor is vertically and upwards arranged, the bottom end of the vertical shaft is fixedly connected with an output shaft of the motor, the first bevel gear and the second bevel gear are fixedly sleeved on the horizontal shaft and the vertical shaft respectively, and the first bevel gear and the second bevel gear are meshed with each other.

Through adopting above-mentioned technical scheme, the bottom of vertical axis and the output shaft fixed connection of motor, the motor can drive vertical rotation of vertical axis at the during operation, and the top of vertical axis is connected with the cross axle of rigid coupling on well guide plate, lower guide plate through first bevel gear and second bevel gear to make the vertical axis can drive well guide plate and lower guide plate around respective cross axle swing back and forth at the rotation in-process.

The utility model discloses further set up to: the bearing is sleeved on the cross shaft, and the bearing is fixedly embedded at the joint of the cross shaft and the cabinet body.

By adopting the technical scheme, the bearing is beneficial to the stable rotation of the transverse shaft, and the abrasion of the transverse shaft to the cabinet body is reduced.

The utility model discloses further set up to: the bottom of the middle guide plate and the top of the lower guide plate are provided with inclined planes which can be attached to each other.

Through adopting above-mentioned technical scheme, the density of the harmful gas that produces is great in some experimentation, and harmful gas can subside on the surface of workstation, laminates together each other through the inclined plane of guide plate in the drive arrangement drive and lower guide plate to can increase the suction of exhaust fan in exhaust passage below, and then can be with the comparatively quick extraction of harmful gas.

The utility model discloses further set up to: the inside mounting of workstation has the blast box, the air intake has been seted up to the bottom of blast box, sets up the air-blower in air intake department, and the dorsally of the upper surface of workstation is vertical to be seted up downwards with the inside exhaust vent that is linked together of blast box.

Through adopting above-mentioned technical scheme, among the exhaust process, the air-blower can be lasting blow the exhaust passage with the air from the exhaust vent in to promote the harmful gas upward movement in the exhaust passage, accelerated harmful gas's discharge.

The utility model discloses further set up to: the exhaust vent has seted up a plurality ofly along the length direction of workstation equidistant.

Through adopting above-mentioned technical scheme, the air-blower can evenly blow off the air from the exhaust vent at the during operation to can assist and promote harmful gas and evenly rise along exhaust passage, make the exhaust effect better.

The utility model discloses further set up to: the air blowing box is provided with a sealing door, and the sealing door is provided with a handle.

Through adopting above-mentioned technical scheme, in the blast box can possibly be fallen into from the exhaust vent to the residue in the experimentation, open the experiment residue to in the blast box that sealing door can be convenient and clear up.

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

1. the power assembly drives the cross shaft to rotate, so that the angles of the middle guide plate and the lower guide plate can be conveniently adjusted, and therefore, workers can change the size of the exhaust channel as required, and harmful gas generated in the experimental process can be smoothly discharged;

2. through the internally mounted air-blower at the workstation, the air-blower can blow in the exhaust passage through the exhaust vent with the air in for the exhaust velocity of harmful gas in the exhaust passage.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view showing a connection structure of the middle baffle, the lower baffle and the power module.

Fig. 5 is a schematic structural view showing the inside of the table.

In the figure, 1, a cabinet body; 11. a vent; 12. an exhaust fan; 13. an inner side plate; 14. an outer panel; 15. installing intervals; 2. a work table; 21. operating the bedplate; 22. an air outlet; 3. a flow guide assembly; 31. an upper deflector; 32. a middle deflector; 33. a lower deflector; 4. a horizontal axis; 5. a power assembly; 51. a motor; 52. a vertical axis; 53. a first bevel gear; 54. a second bevel gear; 6. a bearing; 7. a bevel; 8. a blast box; 81. an air inlet; 82. a blower; 83. a sealing door; 84. a handle.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a fume chamber is used in laboratory, including the cabinet body 1 and the workstation 2 of fixed mounting on the cabinet body 1, workstation 2 has a horizontally operation platen 21, the top of operation platen 21 is provided with water conservancy diversion subassembly 3, form exhaust passage between water conservancy diversion subassembly 3 and the back of the cabinet body 1, vent 11 that is linked together with exhaust passage is seted up on the top of the cabinet body 1, and vent 11 department installs exhaust fan 12, blow towards the outside of the cabinet body 1 through exhaust fan 12, make the harmful gas that produces in the experimentation can flow along exhaust passage upwards, and finally discharge from vent 11.

Referring to fig. 1, specifically, the flow guide assembly 3 includes an upper flow guide plate 31, a middle flow guide plate 32 and a lower flow guide plate 33 sequentially arranged from top to bottom along the height direction of the cabinet 1, the upper flow guide plate 31 extends toward the inside of the cabinet 1 in an inclined upward posture, the upper end and the lower end of the upper flow guide plate 31 are respectively and fixedly installed at the top and the back of the cabinet 1, the middle flow guide plate 32 and the lower flow guide plate 33 are both vertically arranged, and the two sides of the middle flow guide plate and the lower flow. The cabinet 1 has a double-layer structure on both sides, and includes an outer side plate 14 and an inner side plate 13, and a middle guide plate 32 and a lower guide plate 33 are rotatably supported between the two inner side plates 13 of the cabinet 1 by the lateral shafts 4 on both sides. An installation interval 15 is formed between the inner side plate 13 and the outer side plate 14, a power assembly 5 is arranged in the installation interval 15, and the power assembly 5 can limit the horizontal rotation of the driving transverse shaft 4, so that the angle between the centering guide plate 32 and the lower guide plate 33 can be conveniently adjusted.

Referring to fig. 2, the power assembly 5 includes a motor 51, a vertical shaft 52, a first bevel gear 53 and a second bevel gear 54, an output shaft of the motor 51 vertically passes through the operation platen 21 upwards and then extends into the installation space 15, a bottom end of the vertical shaft 52 is fixedly connected with the output shaft, the first bevel gear 53 is fixedly sleeved on the vertical shaft 52, the second bevel gear 54 is fixedly sleeved on the horizontal shaft 4, the first bevel gear 53 and the second bevel gear 54 are engaged with each other in the installation space 15, and the guide plate 32 and the lower guide plate 33 can be rotated simultaneously by driving the two motors 51 to rotate synchronously.

Referring to fig. 2, considering that the transverse shaft 4 is easy to wear the inner side wall of the cabinet 1 during the rotation process, a bearing 6 is fixedly sleeved at the joint of the transverse shaft 4 and the inner side plate 13, and the bearing 6 provides stable support for the horizontal rotation of the transverse shaft 4.

Referring to fig. 4, preferably, the bottom of the middle guide plate 32 and the top of the lower guide plate 33 are formed with inclined planes 7 which can be attached to each other, when the power assembly 5 drives the middle guide plate 32 and the lower guide plate 33 to rotate vertically, the two inclined planes 7 are attached to each other, because the density of harmful gas generated in part of the experimental process is high, the harmful gas can be settled on the operation bedplate 21, and a gap exists between the middle guide plate 32 and the lower guide plate 33, so that the suction force of the exhaust fan 12 at the position of the operation bedplate 21 is low, and the inclined planes 7 of the middle guide plate 32 and the lower guide plate 33 are attached to each other by the driving device, so that the suction force of the exhaust fan 12 below the exhaust passage can be increased, and the harmful gas can be extracted.

With reference to fig. 2 and 5, further, a blower box 8 is further installed inside the workbench 2, the top end of the blower box 8 is fixedly connected to the bottom end of the operation platen 21, an air inlet 81 is formed in the bottom end of the blower box 8, an air blower 82 is installed on the air inlet 81, an air outlet 22 communicating with the inside of the blower box 8 is vertically and downwardly formed in the operation platen 21, and a plurality of air outlets 22 can be arranged below the exhaust channel along the length direction of the operation platen 21 at equal intervals. In the exhaust process, the air blower 82 can continuously blow air into the exhaust channel from the air outlet 22, so that the harmful gas can be pushed to rise uniformly along the exhaust channel, the exhaust speed of the harmful gas is increased, and the exhaust effect is good.

Referring to fig. 5, considering that no toxic gas is generated in part of the experiment, the exhaust fan 12 and the blower 82 do not need to be started to exhaust, therefore, residues generated in the experiment process may fall into the blower box 8 from the air outlet 22, in order to facilitate cleaning of the residues accumulated in the blower box 8, a sealing door 83 is arranged on the blower box 8, and a handle 84 is arranged on the sealing door 83, so that an experimenter can conveniently open the blower box 8 by holding the handle 84, and periodically clean the experimental residues in the blower box 8.

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. The utility model provides a fume chamber is used in laboratory, includes the cabinet body (1) and workstation (2), and the cabinet body (1) fixed mounting is on workstation (2), and the inside of the cabinet body (1) is provided with water conservancy diversion subassembly (3), be formed with exhaust passage between the back of water conservancy diversion subassembly (3) and the cabinet body (1), the intercommunication has been seted up on the top of the cabinet body (1) exhaust passage's vent (11), and locate to be equipped with exhaust fan (12), its characterized in that in vent (11): guide assembly (3) are including going up guide plate (31), well guide plate (32) and lower guide plate (33), and wherein, the top of going up guide plate (31) sets up towards the inside slope of the cabinet body (1), and well guide plate (32) and lower guide plate (33) are vertical to be set up, and the equal rigid coupling in both sides of the two has cross axle (4), and the both sides of the cabinet body (1) are formed with installation interval (15), be provided with in the drive guide plate (32) and lower guide plate (33) around cross axle (4) jointly wobbling power component (5) in installation interval (15).

2. The laboratory fume hood according to claim 1, wherein: the power assembly (5) comprises a motor (51), a vertical shaft (52), a first bevel gear (53) and a second bevel gear (54), wherein the output of the motor (51) is arranged vertically upwards, the bottom end of the vertical shaft (52) is fixedly connected with an output shaft of the motor (51), the first bevel gear (53) and the second bevel gear (54) are respectively fixedly sleeved on the horizontal shaft (4) and the vertical shaft (52), and the first bevel gear (53) and the second bevel gear (54) are meshed with each other.

3. The laboratory fume hood according to claim 2, wherein: the bearing (6) is sleeved on the transverse shaft (4), and the bearing (6) is fixedly embedded at the joint of the transverse shaft (4) and the cabinet body (1).

4. The laboratory fume hood according to claim 1, wherein: the bottom of the middle guide plate (32) and the top of the lower guide plate (33) are provided with inclined planes (7) which can be attached to each other.

5. The laboratory fume hood according to claim 1, wherein: the utility model discloses a fan, including workstation (2), air-out hole (22) that are linked together with air-out box (8) inside have been seted up to the internally mounted of workstation (2), air intake (81) have been seted up to the bottom of air-out box (8), locate to set up air-blower (82) at air intake (81), and the dorsal part of the upper surface of workstation (2) is vertical to be seted up downwards.

6. The laboratory fume hood according to claim 5, wherein: the air outlet holes (22) are formed in the length direction of the workbench (2) at equal intervals.

7. The laboratory fume hood according to claim 5, wherein: a sealing door (83) is arranged on the blast box (8), and a handle (84) is arranged on the sealing door (83).