Ventilation cabinet

Abstract

The utility model provides a fume hood, relates to the field of fume hoods, and adopts the technical scheme that the fume hood comprises a hood body, the hood body comprises a side plate I and a side plate II, support columns are respectively arranged on the front sides of the side plate I and the side plate II, and a working table plate is horizontally arranged between the side plate I and the side plate II; the working table plate divides the space between the first side plate and the second side plate into an operation space and a storage space, a door frame plate is arranged in the storage space, the two ends of the door frame plate are arranged in the corresponding supporting columns in an embedded mode, a cabinet door is arranged on the door frame plate, and a power socket is arranged on the door frame plate. The rear vertical plate, the first side plate, the second side plate, the lining plate, the supporting columns, the door frame plate, the top plate, the upper baffle, the spoiler and the flow guide plate are all made of glass fiber reinforced plastic pultrusion profiles. According to the utility model, the structural strength can be greatly improved.

Description

Technical Field

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

[0002] Existing fume hoods produce liquid evaporation during operation. The evaporated gas is cooled and condensed into liquid in the air duct at the top of the fume hood. After the fume hood stops working, the condensed liquid will flow back along the side wall of the fume hood, causing contamination of the experimental products.

[0003] The prior art provides a fume hood comprising an upper and lower housing. The upper and lower housings are detachable and have nuts embedded in a fiberglass reinforced plastic plate, connected by bolts and nuts. A deflector is provided in the upper housing, with a condensate receiving trough below the deflector. Both the upper and lower housings are constructed of a polymer composite sheet material. An electrical control device and a power outlet are mounted on the side columns of the upper housing. Safety access doors are located on both sides of the inner wall of the upper housing, and the lower housing is equipped with multiple lockers with door handles. This technical solution offers advantages such as acid resistance, corrosion resistance, high temperature resistance, flame retardancy, scratch resistance, long service life, environmental friendliness, and non-conductivity.

[0004] However, with the above technical solution, the fume hood is divided into an upper box and a lower box, which are connected by bolts, and the overall structural strength is poor. Utility Model Content

[0005] In order to solve the technical problem of poor overall structural strength of the fume hood in the above-mentioned prior art, the utility model provides a fume hood that can greatly improve the structural strength.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a fume hood, including a cabinet body, the cabinet body including side panel one and side panel two, support columns are respectively provided on the front sides of side panel one and side panel two, a workbench is horizontally arranged between side panel one and side panel two, the workbench divides the space between side panel one and side panel two into an operating space and a storage space, the storage space is provided with a door frame panel, both ends of the door frame panel are embedded in the corresponding support columns, a cabinet door is provided on the door frame panel, and a power socket is provided on the door frame panel.

[0007] The utility model connects the side panels of the operating space and the storage space into one, and installs the door frame panels in an embedded manner, which can enhance the supporting strength of the workbench, prevent the workbench from deformation, greatly improve the strength of the cabinet body, prevent the cabinet body from disintegrating due to external forces, greatly improve the structural stability, and extend the service life of the fume hood.

[0008] Furthermore, a rear vertical plate is provided between the side panel 1 and the side panel 2, a top plate is provided between the upper ends of the side panel 1 and the side panel 2, an air collecting hood is provided on the top plate, and lining plates are provided on the inner sides of the side panel 1 and the side panel 2, and an inspection window is provided on the lining plates.

[0009] The utility model can prevent volatile substances such as gas and water generated during the test from corroding electrical circuits, pipelines, etc. by arranging the lining plate, thereby extending the service life of the fume hood.

[0010] Furthermore, a guide plate is provided on the inner side of the rear vertical panel and located in the operating space, a spoiler is provided on the top plate and located at the top of the operating space, a plurality of ventilation holes are provided on the guide plate, and air intake notches are provided on the lower ends of the guide plate near the side panel one and the side panel two.

[0011] The utility model can enhance the exhaust function and accelerate the air flow between the fume hood and the outside world by arranging the guide plate and the spoiler.

[0012] Furthermore, an upper baffle is provided between the upper ends of the two support columns, an upper baffle window is provided between the two lining plates, the upper baffle window is located below the upper baffle, and a lifting window is provided between the two support columns so as to be movable up and down, the lifting window is located on the outside of the upper baffle windows and is attached to them, a handle is provided on the outside of the lifting window, and the handle can abut against the lower side of the upper baffle.

[0013] The utility model can reduce the volume of the lifting window and the lifting force of people to open the window by arranging a fixed upper baffle window and a movable lifting window, thereby facilitating the opening of the fume hood.

[0014] Furthermore, a belt transmission assembly is provided on the inner side of side panel one and side panel two, and the belt transmission assembly includes a transmission belt, a pulley one, and a pulley two. Both the pulley one and the pulley two are rotatably provided on the inner side of side panel one or side panel two, and the pulley one and the pulley two are located on the upper part of the top plate. One end of the two transmission belts are respectively connected to the corresponding end of the lifting window after passing through the corresponding pulley one, and the other end of the two transmission belts are respectively connected to the corresponding end of the counterweight plate after passing through the corresponding pulley two. The counterweight plate is located on the outer side of the rear vertical plate.

[0015] The utility model arranges the first and second pulleys on the upper part of the top plate and arranges the lifting window outside the upper window baffle, so as to ensure that the transmission belt is outside the operating space, does not come into contact with corrosive volatile substances, is not easily corroded, and has a longer service life.

[0016] Furthermore, the rear vertical panel, the side panel 1, the side panel 2, the lining panel, the support column, the door frame panel, the top panel, the upper baffle, the spoiler and the guide plate are all made of glass fiber reinforced plastic pultruded profiles.

[0017] The utility model adopts glass fiber reinforced plastic pultruded profile to manufacture the fume hood. On the one hand, from the material perspective, the strength of the cabinet is improved, and it is not easy to deform or disintegrate. On the other hand, it has the advantages of acid resistance, corrosion resistance, high temperature resistance, flame retardancy, scratch resistance, long service life and environmental protection.

[0018] Furthermore, the width of the support column is D, 40mm≤D≤65mm, and the thickness of the support column is H, 60mm≤H≤90mm.

[0019] The utility model can reduce the space occupied by the support column and increase the usable space of the operating space by limiting the width and thickness of the support column.

[0020] Furthermore, both of the support columns are provided with a mounting surface, the mounting surface is tilted inward, and a control panel is provided on the mounting surface.

[0021] The utility model can tilt the control panel toward the cabinet body by tilting the mounting surface, which is convenient for operation.

[0022] Furthermore, both of the support columns are hollow structures and have accommodating grooves on their inner sides.

[0023] It can be seen from the above technical solutions that the present invention has the following advantages:

[0024] The utility model provides a fume hood, which connects the side panels of the operating space and the storage space into one, and embeds the door frame panel, so as to enhance the supporting strength of the workbench, prevent the workbench from deformation, greatly improve the strength of the cabinet body, prevent the cabinet body from disintegrating due to external forces, greatly improve the structural stability, and extend the service life of the fume hood; by arranging the lining plate, it can avoid the corrosion of volatile substances such as gas and water generated by the test to the electrical circuits, pipelines, etc., and extend the service life of the fume hood; by arranging the guide plate and the spoiler, the exhaust effect can be enhanced, and the air flow between the fume hood and the outside world can be accelerated; by arranging the fixed upper baffle window and the movable lifting window, the volume of the lifting window can be reduced, and the lifting time of people opening the window can be reduced force, making it easy to open the fume hood; by arranging pulley one and pulley two on the upper part of the top plate and arranging the lifting window outside the upper baffle, it can ensure that the transmission belt is outside the operating space and does not come into contact with corrosive volatile substances, is not easily corroded, and extends the service life; by using glass fiber reinforced plastic pultruded profiles to manufacture the fume hood, on the one hand, from the material point of view, the strength of the cabinet is improved, and it is not easy to deform or disintegrate; on the other hand, it has the advantages of acid resistance, corrosion resistance, high temperature resistance, flame retardancy, scratch resistance, long service life, and environmental protection; by limiting the width of the support column, the space occupied by the support column can be reduced and the use space of the operating space can be increased; by tilting the mounting surface, the control panel can be tilted into the cabinet body, which is convenient for personnel to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the utility model Figure 1 .

[0027] Figure 2 This is a schematic diagram of the structure of a specific embodiment of the utility model Figure 2 .

[0028] Figure 3 It is a structural schematic diagram of the guide plate in a specific embodiment of the present utility model.

[0029] Figure 4 It is a schematic diagram of the assembly structure of the lifting window, upper window guard, side panel and belt transmission component in a specific embodiment of the present utility model.

[0030] Figure 5 It is a cross-sectional view of a support column in a specific embodiment of the present invention.

[0031] In the figure, 1. Duct hood; 2. Top plate; 3. Side panel 2; 4. Support column; 41. Mounting surface; 42. Receiving groove; 5. Door frame plate; 6. Cabinet door; 7. Power socket; 8. Side panel 1; 10. Lift window; 11. Control panel; 12. Upper window baffle; 13. Upper baffle; 14. Guide plate; 141. Ventilation hole; 142. Air intake notch; 15. Faucet; 16. Workbench; 17. Counterweight plate; 18. Rear panel; 19. Spoiler; 20. Inspection window; 22. Lining plate; 23. Pulley 2; 24. Pulley 1. DETAILED DESCRIPTION

[0032] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0033] like Figure 1 and Figure 2 As shown, this specific embodiment provides a fume hood, including a cabinet body, the cabinet body includes side panel 1 8 and side panel 2 3, support columns 4 are respectively provided on the front sides of side panel 1 8 and side panel 2 3, a workbench 16 is horizontally arranged between side panel 1 8 and side panel 2 3, the workbench 16 divides the space between side panel 1 8 and side panel 2 3 into an operating space and a storage space, a faucet 15 and a sink are provided on the workbench 16, and a sewer pipe is connected to the lower part of the sink, the workbench 16 is made of solid physical and chemical board or epoxy resin board or ceramic table panel, the storage space is provided with a door frame plate 5, both ends of the door frame plate 5 are embedded in the corresponding support columns 4, a cabinet door 6 is provided on the door frame plate 5, and a power socket 7 is provided on the door frame plate 5; by embedding the door frame plate 5, the supporting strength of the workbench 16 can be enhanced, the workbench 16 can be prevented from deformation, and the service life of the fume hood can be extended.

[0034] This specific embodiment connects the side panels of the operating space and the storage space into one, and at the same time, embeds the door frame panel 5, which can enhance the supporting strength of the workbench 16, prevent the workbench 16 from deformation, greatly improve the strength of the cabinet, prevent the cabinet from disintegrating due to external forces, greatly improve the structural stability, and extend the service life of the fume hood.

[0035] like Figure 1 and Figure 2As shown, in this specific embodiment, a rear vertical plate 18 is further provided between side panel 1 8 and side panel 2 3, and a top plate 2 is further provided between the upper ends of side panel 1 8 and side panel 2 3. The top plate 2 is provided with ventilation holes 141 and an air collecting hood 1 is provided on the upper part. The air collecting hood 1 is used to collect the gas generated in the operating space. In order to prevent corrosive volatile substances from corroding the lines and pipelines, in this specific embodiment, lining plates 22 are provided on the inner sides of side panel 1 8 and side panel 2 3, and an inspection window 20 is provided on the lining plate 22. Opening the inspection window 20 facilitates line maintenance.

[0036] like Figure 2 and Figure 3 As shown, in order to ensure effective exhaust and improve gas exchange efficiency, in this specific embodiment, a guide plate 14 is provided on the inner side of the rear vertical plate 18 and located in the operating space, and a spoiler 19 is provided on the top plate 2 and located at the top of the operating space. A plurality of ventilation holes 141 are provided on the guide plate 14, and the ventilation holes 141 are evenly arranged. In this specific embodiment, they are U-shaped holes, and air intake notches 142 are provided on the lower ends of the guide plate 14 near the side panels 1 8 and the side panels 2 3. By arranging the ventilation holes 141 and the air intake notches 142 on the guide plate 14, the amount of air entering and exiting the operating space can be increased, and the air exchange can be accelerated. The spoiler 19 is arranged at an angle.

[0037] like Figure 4 As shown, in the prior art, a lifting window 10 is provided in the operating space for easy observation and operation. In the present specific embodiment, in order to reduce the force applied when the lifting window 10 is opened and facilitate opening, an upper baffle 13 is provided between the upper ends of the two support columns 4, and an upper baffle 12 is provided between the two lining plates 22. The upper baffle 12 is located below the upper baffle 13, and a lifting window 10 is provided between the two support columns 4 so as to be movable up and down. The lifting window 10 is located on the outside of the upper baffle 12 and is attached to it. A handle is provided on the outside of the lifting window 10, and the handle can abut against the lower side of the upper baffle 13; when the lifting window 10 is closed, the lifting window 10 and the upper baffle 12 jointly seal the operating space. When opening, the lifting window 10 can be pushed upward, and the upper baffle 12 is fixed, which greatly reduces the force applied to open the window and is suitable for use in fume hoods with large operating spaces.

[0038] like Figure 4As shown, in the prior art, the lifting window 10 is driven by a belt transmission assembly and a counterweight. In order to avoid corrosion of the transmission belt, in this specific embodiment, a belt transmission assembly is provided on the inner side of the side panel 1 8 and the side panel 2 3. The belt transmission assembly includes a transmission belt, a pulley 1 24, and a pulley 23. The pulley 1 24 and the pulley 2 23 are both rotatably arranged on the inner side of the side panel 1 8 or the side panel 2 3. The pulley 1 24 and the pulley 2 23 are both installed between the side panel 1 8 and the side panel 2 3 through a rotating shaft, and the pulley 1 24 and the pulley 2 23 are located on the upper part of the top plate 2. One end of the two transmission belts passes around the corresponding pulley 1 24 and is connected to the corresponding end of the lifting window 10, and the other end of the two transmission belts passes around the corresponding pulley 2 23 and is connected to the corresponding end of the counterweight plate 17. The counterweight plate 17 is located on the outer side of the rear vertical plate 18. After this arrangement, the transmission belt passes outside the operating space and does not come into contact with corrosive volatile substances, thereby extending its service life.

[0039] In this specific embodiment, in order to improve the performance of the fume hood, the rear panel 18, side panel 1 8, side panel 2 3, lining panel 22, support column 4, door frame panel 5, top panel 2, upper baffle 13, spoiler 19 and guide plate 14 are all made of glass fiber reinforced plastic pultruded profiles; the glass fiber reinforced plastic pultruded profile is made of flame retardant resin and reinforcing material (glass fiber roving, glass fiber continuous mat or glass fiber surface mat) under the action of the traction force of the pultrusion equipment. After being fully impregnated with glue in the dipping tank, it is reasonably guided by a series of pre-formed templates to obtain a preliminary shape, and finally enters the heated metal mold for reaction and curing. The glass fiber reinforced plastic pultruded profile has high flame retardancy, corrosion resistance, strength, aging resistance, insulation, thermal insulation, and appearance durability, which greatly improves the performance of the fume hood in all aspects and expands the scope of application.

[0040] In this specific embodiment, the width of the support column 4 is D, 40mm≤D≤65mm, and the thickness of the support column 4 is H, 60mm≤H≤90mm. By limiting the width and thickness of the support column 4, the space occupied by the support column 4 can be reduced and the usable space of the operating space can be increased.

[0041] like Figure 1 and Figure 5 As shown, in order to facilitate human operation, in this specific embodiment, both support columns 4 are provided with a mounting surface 41, the mounting surface 41 is inclined inward, and a control panel 11 is provided on the mounting surface 41; in order to achieve lightweight, the support column 4 is a hollow structure, and its inner side surface is provided with a receiving groove 42 for accommodating the lifting window 10 and the door frame plate 5.

[0042] From the above specific embodiments, it can be seen that the present invention has the following beneficial effects:

[0043] 1. By connecting the side panels of the operating space and the storage space into one, and at the same time, embedding the door frame 5, the support strength of the workbench 16 can be enhanced, preventing the workbench 16 from deformation, greatly improving the strength of the cabinet, preventing the cabinet from disintegrating under external forces, greatly improving the structural stability, and extending the service life of the fume hood;

[0044] 2. The lining plate 22 can prevent volatile substances such as gas and water generated during the test from corroding electrical circuits, pipes, etc., thereby extending the service life of the fume hood;

[0045] 3. The provision of the guide plate 14 and the spoiler 19 can enhance the exhaust function and speed up the air flow between the fume hood and the outside world;

[0046] 4. By providing a fixed upper baffle 12 and a movable lifting window 10, the volume of the lifting window 10 can be reduced, the lifting force required to open the window is reduced, and the fume hood can be opened more easily.

[0047] 5. By arranging the pulley 1 24 and the pulley 2 23 on the upper part of the top plate 2 and the lifting window 10 outside the upper window 12, the transmission belt can be kept outside the operating space and not come into contact with corrosive volatile substances, thus being less susceptible to corrosion and extending its service life.

[0048] 6. By using FRP pultruded profiles to manufacture the fume hood, on the one hand, from the material perspective, the cabinet strength is improved, not easy to deform or disintegrate; on the other hand, it has the advantages of acid resistance, corrosion resistance, high temperature resistance, flame retardancy, scratch resistance, long service life and environmental protection;

[0049] 7. By limiting the width of the support column 4, the space occupied by the support column 4 can be reduced, and the usable space of the operating space can be increased;

[0050] 8. By tilting the mounting surface, the control panel 11 can be tilted toward the inside of the cabinet, making it easier for operators to operate.

[0051] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fume hood, comprising a cabinet body, characterized in that: The cabinet body comprises a side panel 1 (8) and a side panel 2 (3), and support columns (4) are respectively provided on the front sides of the side panel 1 (8) and the side panel 2 (3). A workbench (16) is horizontally provided between the side panel 1 (8) and the side panel 2 (3), and the workbench (16) divides the space between the side panel 1 (8) and the side panel 2 (3) into an operating space and a storage space. The storage space is provided with a door frame (5), and both ends of the door frame (5) are embedded in the corresponding support columns (4). A cabinet door (6) is provided on the door frame (5), and a power socket (7) is provided on the door frame (5).

2. The fume hood according to claim 1, wherein: A rear vertical plate (18) is further provided between the side panel 1 (8) and the side panel 2 (3), a top plate (2) is further provided between the upper ends of the side panel 1 (8) and the side panel 2 (3), an air collecting hood (1) is provided on the top plate (2), lining plates (22) are provided on the inner sides of the side panel 1 (8) and the side panel 2 (3), and an inspection window (20) is provided on the lining plates (22).

3. The fume hood according to claim 2, wherein: A guide plate (14) is provided on the inner side of the rear vertical plate (18) and located in the operating space, a spoiler (19) is provided on the top plate (2) and located at the top of the operating space, a plurality of ventilation holes (141) are provided on the guide plate (14), and air intake notches (142) are provided at the lower ends of both sides of the guide plate (14) close to the side plate 1 (8) and the side plate 2 (3).

4. The fume hood according to claim 3, wherein: An upper baffle (13) is provided between the upper ends of the two support columns (4), an upper baffle window (12) is provided between the two lining plates (22), and the upper baffle window (12) is located below the upper baffle (13). A lifting window (10) is provided between the side panel 1 (8) and the side panel 2 (3) so as to be movable up and down, and the lifting window (10) is located outside the upper baffle window (12) and is in contact with the side panel 2. A handle is provided outside the lifting window (10), and the handle can abut against the lower side of the upper baffle (13).

5. The fume hood according to claim 4, wherein: The inner sides of the side panel 1 (8) and the side panel 2 (3) are both provided with a belt transmission assembly, and the belt transmission assembly includes a transmission belt, a pulley 1 (24), and a pulley 2 (23). The pulley 1 (24) and the pulley 2 (23) are both rotatably provided on the inner sides of the side panel 1 (8) or the side panel 2 (3), and the pulley 1 (24) and the pulley 2 (23) are located on the upper part of the top panel (2). One end of the two transmission belts passes through the corresponding pulley 1 (24) and is connected to the corresponding end of the lifting window (10). The other end of the two transmission belts passes through the corresponding pulley 2 (23) and is connected to the corresponding end of the counterweight plate (17). The counterweight plate (17) is located on the outer side of the rear vertical panel (18).

6. The fume hood according to claim 5, wherein: The rear vertical plate (18), the side plate one (8), the side plate two (3), the lining plate (22), the support column (4), the door frame plate (5), the top plate (2), the upper baffle (13), the spoiler (19) and the guide plate (14) are all made of glass fiber reinforced plastic pultruded profiles.

7. The fume hood according to claim 1, wherein: The width of the support column (4) is D, 40mm≤D≤65mm, and the thickness of the support column (4) is H, 60mm≤H≤90mm.

8. The fume hood according to claim 7, wherein: Both support columns (4) are provided with a mounting surface (41), the mounting surface (41) is tilted inward, and a control panel (11) is provided on the mounting surface (41).

9. The fume hood according to claim 8, wherein: Both of the support columns (4) are hollow structures and have accommodating grooves (42) provided on their inner sides.

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