Narrow-side fume hood
By designing a narrow-side fume hood and using the air collecting hood and air guide chamber structure, the rapid discharge of harmful gases with short exhaust paths and high efficiency is achieved, solving the problem of poor gas flowability of existing fume hoods and improving safety.
Patent Information
- Application Number
- CN202421683199.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The existing fume hood has a complex structure and a long exhaust route, which leads to poor gas flow, affects safety, and makes it difficult to quickly discharge toxic gases.
A narrow side fume hood is designed, using an air collecting hood to connect the exhaust pipe, and the air inlet is connected to the external fan. The air blown by the fan enters the inside of the upper cabinet through the air inlet, and enters the air collecting hood through the air guide chamber, and finally discharges through the exhaust pipe. The exhaust path is short and the exhaust efficiency is high.
It improves the gas flow rate in the cabinet, quickly cleans up harmful gases, achieves rapid emissions, and enhances the safety of use.
Smart Images
Figure CN223171589U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laboratory fume hoods, and more specifically, to a narrow-edge fume hood. Background Art
[0002] During the operation in a laboratory, harmful gases are often generated when conducting chemical experiments. To prevent experimenters from inhaling these harmful substances, an exhaust fume hood must be used to remove the harmful gases.
[0003] The existing exhaust fume hood has a complex structure and a long exhaust route. When the gas fluidity in the operating room is poor, due to the long exhaust route, the toxic gases cannot be discharged smoothly and quickly, affecting the safety of use.
[0004] The foregoing description is for the purpose of providing general background information and does not necessarily constitute prior art. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a narrow-edge fume hood, which has a simple structure, a short exhaust path, and high exhaust efficiency. It greatly improves the gas flow velocity inside the cabinet, accelerates the emission of harmful gases inside the cabinet, and achieves the function of quickly cleaning the harmful gases inside the cabinet.
[0006] The utility model provides a narrow-edge fume hood, which includes an upper cabinet body and a lower cabinet body. The upper cabinet body is fixedly connected to the upper end of the lower cabinet body. The upper cabinet body is in the shape of a cuboid with a hollow interior and an open front end. At the open front end of the upper cabinet body, an operation sliding door is connected for controlling the opening and closing of the front end opening. At the upper end of the upper cabinet body, an air inlet and an air outlet are provided, and a gas collecting hood is covered on the air outlet. Inside the upper cabinet body, a flow guiding plate is connected at intervals on the rear surface. A wind guiding cavity is formed between the flow guiding plate and the left, right, and rear surfaces inside the upper cabinet body. At the upper end of the flow guiding plate, an inclined drainage plate is connected, and the drainage plate is located directly below the air outlet. At the lower end of the flow guiding plate, an air inlet pointing to the bottom surface inside the upper cabinet body is formed.
[0007] By adopting the above technical solution, the gas collecting hood is connected to an exhaust pipe, and the air inlet is communicated with an external fan. The air blown by the fan enters the interior of the upper cabinet body through the air inlet, and together with the harmful gases, enters the gas collecting hood through the air inlet via the wind guiding cavity, and finally is discharged through the exhaust pipe. The exhaust path is short and the exhaust efficiency is high. It greatly improves the gas flow velocity inside the cabinet, accelerates the emission of harmful gases inside the cabinet, and achieves the function of quickly cleaning the harmful gases inside the cabinet.
[0008] Furthermore, the gas collecting hood is in a contracted shape with a wider lower part and a narrower upper part.
[0009] Further, the sliding door includes a sliding rod, pulleys, tempered glass, and a window handle; both ends of the sliding rod are rotatably connected with the pulleys, and sliding grooves are provided on both sides of the front opening of the upper cabinet body; the pulleys at both ends of the sliding rod are correspondingly installed in the sliding grooves; the tempered glass and the window handle are fixedly connected to the sliding rod; when the pulleys slide up and down in the sliding grooves, the tempered glass will be driven to open and close the front opening of the upper cabinet body.
[0010] Further, lighting devices are installed on both the left and right sides inside the upper cabinet body.
[0011] Further, a distribution box and a controller are installed inside the lower cabinet body, the distribution box is connected to the controller, and the lighting device is connected to the controller.
[0012] Further, a socket and a power distribution switch are installed on the front of the lower cabinet body, and both the socket and the power distribution switch are connected to the controller.
[0013] For the narrow-edge fume hood of the present utility model, the exhaust pipe is connected through the air collecting hood, and the air inlet is communicated with the external fan; the air blown by the fan enters the inside of the upper cabinet body through the air inlet, and together with the harmful gas, it enters the air collecting hood through the air inlet and the air guiding cavity, and finally is discharged through the exhaust pipe; the structure is simple, the exhaust path is short, and the exhaust efficiency is high; it greatly improves the gas flow velocity inside the cabinet, accelerates the discharge of harmful gas inside the cabinet, and achieves the function of quickly cleaning the harmful gas inside the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic structural diagram of the narrow-edge fume hood provided by the embodiment of the present utility model.
[0015] Figure 2 is Figure 1 the internal side view schematic diagram of the narrow-edge fume hood in
[0016] Figure 3 is Figure 1 the front view schematic diagram of the narrow-edge fume hood in
[0017] Figure 4 is Figure 1 the schematic structural diagram of the narrow-edge fume hood in
[0018] Figure 5 is Figure 1 the schematic diagram of the structure of the narrow-edge fume hood from another perspective in
[0019] Figure 6 is Figure 1 the schematic diagram of the structure of the narrow-edge fume hood from yet another perspective in
[0020] The reference numerals and components involved in the drawings are as follows:
[0021] 100, upper cabinet body; 110, operating sliding door; 111, sliding rod
[0022] 112, pulley; 113, tempered glass; 114, window handle
[0023] 120, air inlet; 130, air outlet; 140, air collecting hood
[0024] 150, guide plate; 160, drainage plate; 170, air intake
[0025] 180, lighting device; 190, sliding groove; 200, lower cabinet body
[0026] 210, socket; 220, power distribution switch; 300, air guide cavity Detailed implementation manners
[0027] The following further describes in detail the specific implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but not to limit the scope of the present utility model.
[0028] The terms "first", "second", "third", "fourth", etc. in the description and claims of the present utility model are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence.
[0029] Embodiment 1
[0030] Figure 1 is a structural schematic diagram of a narrow-edge fume hood provided by an embodiment of the present utility model, Figure 2 is Figure 1 an internal side view schematic diagram of the narrow-edge fume hood in Figure 3 is Figure 1 a front view schematic diagram of the narrow-edge fume hood in Figure 4 is Figure 1 a structural schematic diagram of the narrow-edge fume hood in Figure 5 is Figure 1 another perspective structural schematic diagram of the narrow-edge fume hood in Figure 6 is Figure 1 yet another perspective structural schematic diagram of the narrow-edge fume hood in. Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6, the narrow-edge fume hood provided by the embodiment of the present utility model includes an upper cabinet body 100 and a lower cabinet body 200, and the upper end of the lower cabinet body 200 is fixedly connected to the upper cabinet body 100; the upper cabinet body 100 is in the shape of a cuboid with a hollow interior and an open front end, and an operation sliding door 110 for controlling the opening and closing of the front end opening is connected at the front end opening of the upper cabinet body 100; an air inlet 120 and an air outlet 130 are provided at the upper end of the upper cabinet body 100, and a gas collection hood 140 is covered on the air outlet 130; a flow guide plate 150 is connected at intervals on the rear surface inside the upper cabinet body 100, and a wind guide cavity 300 is formed between the flow guide plate 150 and the left, right and rear surfaces inside the upper cabinet body 100; an inclined drainage plate 160 is connected to the upper end of the flow guide plate 150, and the drainage plate 160 is located directly below the air outlet 130; an air inlet 170 pointing to the bottom surface inside the upper cabinet body 100 is formed at the lower end of the flow guide plate 150.
[0031] When the narrow-edge fume hood of the present utility model is in use, the exhaust pipe is connected through the gas collection hood 140, and the air inlet 120 is communicated with an external fan; the air blown by the fan enters the interior of the upper cabinet body 100 through the air inlet 120, and together with the harmful gas, enters the gas collection hood 140 through the air inlet 170 via the wind guide cavity 300, and is finally discharged through the exhaust pipe; the narrow-edge fume hood of the present utility model has a simple structure, a short exhaust path and high exhaust efficiency; it greatly improves the gas flow velocity in the cabinet body, accelerates the discharge of harmful gas in the cabinet body, and achieves the function of quickly cleaning the harmful gas in the cabinet body.
[0032] Furthermore, referring to the gas collection hood 140, it is in a contracted shape with a wider bottom and a narrower top. It should be noted that the contracted design of the gas collection hood 140 enables the gas collection hood 140 to have functions such as good gas collection and noise reduction.
[0033] Furthermore, referring to Figure 1 、 Figure 4 , the operation sliding door 110 of the present utility model includes a sliding rod 111, a pulley 112, a tempered glass 113 and a window handle 114; both ends of the sliding rod 111 are rotatably connected with the pulley 112, and sliding grooves 190 are provided on both sides of the front end opening of the upper cabinet body 100; the pulleys 112 at both ends of the sliding rod 111 are correspondingly installed in the sliding grooves 190; the tempered glass 113 and the window handle 114 are fixedly connected to the sliding rod 111;
[0034] When the pulley 112 slides up and down in the sliding groove 190, it will drive the tempered glass 113 to open and close the front end opening of the upper cabinet body 100.
[0035] It should be noted that the pulley 112 is a PP silent pulley 112, with small friction and smooth transmission.
[0036] Further, lighting devices 180 are installed on both the left and right sides inside the upper cabinet body 100. It should be noted that the lighting device 180 is a waterproof, dustproof, and impact-resistant three-proof lamp cover and an LED lamp tube; the illumination is greater than 750 Lux.
[0037] Further, a distribution box and a controller are installed inside the lower cabinet body 200. The distribution box is connected to the controller, and the lighting device 180 is connected to the controller; a socket 210 and a power distribution switch 220 are installed on the front of the lower cabinet body 200, and both the socket 210 and the power distribution switch 220 are connected to the controller.
[0038] Based on the above description, the advantages of the present utility model are as follows:
[0039] When the narrow-edge fume hood of the present utility model is in use, the exhaust pipe is connected through the air collection hood 140, and the air inlet 120 is communicated with an external fan; the air blown by the fan enters the inside of the upper cabinet body 100 through the air inlet 120, and together with the harmful gas, it enters the air collection hood 140 through the air inlet 170 via the air guiding cavity 300, and finally is discharged through the exhaust pipe; the narrow-edge fume hood of the present utility model has a simple structure, a short exhaust path, and high exhaust efficiency; it greatly improves the gas flow velocity inside the cabinet, accelerates the emission of harmful gases inside the cabinet, and achieves the function of quickly cleaning the harmful gases inside the cabinet.
[0040] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims
1. A narrow-edge fume hood, characterized in that, It includes an upper cabinet body (100) and a lower cabinet body (200), and the upper cabinet body (100) is fixedly connected to the upper end of the lower cabinet body (200). The upper cabinet body (100) is in the shape of a cuboid with a hollow interior and an open front end. At the open front end of the upper cabinet body (100), an operation sliding door (110) is connected for controlling the opening and closing of the front end opening. An air inlet (120) and an air outlet (130) are provided at the upper end of the upper cabinet body (100), and a gas collecting hood (140) is covered on the air outlet (130). On the rear surface inside the upper cabinet body (100), flow guiding plates (150) are connected at intervals. A wind guiding cavity (300) is formed between the flow guiding plates (150) and the left, right, and rear surfaces inside the upper cabinet body (100); An inclined drainage plate (160) is connected to the upper end of the flow guiding plate (150), and the drainage plate (160) is located directly below the air outlet (130); An air inlet (170) pointing to the inner bottom surface of the upper cabinet body (100) is formed at the lower end of the flow guiding plate (150).
2. The narrow-side fume hood according to claim 1, characterized in that, The gas collecting hood (140) is in a contracted shape with a wider bottom and a narrower top.
3. The narrow-side fume hood according to claim 1, characterized in that, The operation sliding door (110) includes sliding rods (111), pulleys (112), tempered glass (113), and a window handle (114). The two ends of the sliding rod (111) are rotatably connected with the pulleys (112). Chute grooves (190) are provided on both sides of the front end opening of the upper cabinet body (100); The pulleys (112) at both ends of the sliding rod (111) are correspondingly installed in the chute grooves (190); The tempered glass (113) and the window handle (114) are fixedly connected to the sliding rod (111). When the pulleys (112) slide up and down in the chute grooves, they will drive the tempered glass (113) to open and close the front end opening of the upper cabinet body (100).
4. The narrow-side fume hood according to claim 1, characterized in that, Lighting devices (180) are installed on both the left and right surfaces inside the upper cabinet body (100).
5. The narrow-side fume hood according to claim 4, characterized in that, A distribution box and a controller are installed inside the lower cabinet body (200). The distribution box is connected to the controller, and the lighting device (180) is connected to the controller.
6. The narrow-side fume hood according to claim 5, characterized in that, A socket (210) and a power distribution switch (220) are installed on the front surface of the lower cabinet body (200). Both the socket (210) and the power distribution switch (220) are connected to the controller.