A detachable stainless steel fume hood

Abstract

The utility model relates to stainless steel smoke exhaust hood technical field discloses a convenient to detach's stainless steel smoke exhaust hood, including smoke exhaust hood, the upper surface fixed connection of smoke exhaust hood has the connecting pipe with its inside intercommunication, is provided with the exhaust fan in the inside of connecting pipe, is provided with the mounting bracket in the inside of smoke exhaust hood, fixed component, fixed component sets up on mounting bracket and smoke exhaust hood, and fixed component includes protection box, and protection box fixedly connected on the front surface of smoke exhaust hood, and the left and right inner wall in protection box is rotatably connected with two -way screw rod, and the outer wall fixed sleeve of two -way screw rod has turbine, and the front surface of turbine is provided with worm, and worm and turbine are interlocked together, through the linkage design of turbine worm and two -way screw rod, realized the quick disassembly and fixed of mounting bracket, and further convenient to the disassembly and installation of mounting bracket whole, through setting recessed plate and sliding plate and further convenient to the disassembly and installation of filter screen, improved the cleaning convenience of smoke exhaust hood.

Description

Technical Field

[0001] This utility model relates to the technical field of stainless steel smoke hoods, specifically a stainless steel smoke hood that is easy to disassemble. Background Technology

[0002] A stainless steel exhaust hood is a ventilation device used to extract kitchen fumes and heat. It consists of two parts: the hood body and the cover. The hood body is composed of three planes, while the cover consists of four planes (or baffles) forming a cone. The lower end of the cone is connected to the hood body, and the upper end is connected to the exhaust duct.

[0003] Based on the above, the inventors have discovered the following problems: the filter screen and the hood body of current stainless steel exhaust hoods are usually an integral structure or fixed with screws, which is not convenient to disassemble. When cleaning, it can only be done by spraying cleaning agent on the outside and wiping with a cloth. It is impossible to clean the oil stains inside. Too much oil stains inside can easily clog the filter screen and produce back odors, making it inconvenient to clean the filter screen. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a stainless steel fume hood that is easy to disassemble. This solves the problem that current stainless steel fume hoods typically have a single integrated structure for the filter and the hood body, or are fixed with screws, making disassembly inconvenient. Cleaning can only be done by spraying cleaning agent on the outside and wiping with a cloth, making it impossible to clean the internal oil stains. Excessive internal oil stains can easily clog the filter and cause backflow of odors, making it inconvenient to clean the filter.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a stainless steel fume hood that is easy to disassemble, comprising a fume hood, a connecting pipe that communicates with the interior of the fume hood is fixedly connected to the upper surface of the fume hood, an exhaust fan is installed inside the connecting pipe, and a mounting bracket is installed inside the fume hood.

[0008] The fixing component is set on the mounting bracket and the fume hood. The fixing component includes a protective box, which is fixedly connected to the front surface of the fume hood. The left and right inner walls inside the protective box are rotatably connected with bidirectional threaded rods.

[0009] Among them, a turbine is fixedly sleeved on the outer wall of the bidirectional threaded rod, and a worm is provided on the front surface of the turbine. The worm and the turbine mesh together, and the worm is rotatably connected to the upper and lower inner walls of the protective box.

[0010] The upper end of the worm gear rotates through the upper surface of the protective box, and a connector is fixedly connected to the upper end of the worm gear.

[0011] Preferably, the outer wall of the bidirectional threaded rod is threaded with two movable sleeves, and the upper and lower surfaces of the two movable sleeves are fixedly connected with clamping plates. The ends of the four clamping plates away from the movable sleeves slide through the outer surface of the protective box.

[0012] Preferably, the fixing component further includes a connecting plate, which is fixedly connected to the lower surface of the mounting bracket, and the mounting plate is fixedly connected to the lower surface of the connecting plate.

[0013] Preferably, the upper surface of the mounting plate is fixedly connected to two support plates, and the upper surface of each support plate is fixedly connected to a fixing block.

[0014] Preferably, each of the four fixing blocks has a fixing groove, and the four locking plates are respectively slidably engaged into the inner wall of the corresponding fixing groove;

[0015] The number of fixed components is two, and the structure of the two fixed components is set as a front-to-back mirror image.

[0016] Preferably, the upper surface of the mounting bracket is fixedly connected to two mounting blocks, and the upper surface of each mounting block is fixedly connected to a concave plate.

[0017] Preferably, a slide plate is slidably connected to the concave portion of each of the two concave plates, and a filter screen is fixedly connected to the opposite surfaces of the two slide plates.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a stainless steel fume hood that is easy to disassemble, and has the following beneficial effects:

[0020] 1. This easily detachable stainless steel fume hood, through the linkage design of worm gear and bidirectional threaded rod, enables quick disassembly and fixation of the mounting bracket, thereby facilitating the overall disassembly and installation of the mounting bracket. The inclusion of concave plates and sliding plates further facilitates the disassembly and installation of the filter screen, improving the ease of cleaning the fume hood.

[0021] 2. This easily detachable stainless steel exhaust hood features a worm gear mechanism with self-locking characteristics that prevents the clamping plate from loosening due to vibration during operation, ensuring the stability of the mounting bracket. The stainless steel exhaust hood and mounting bracket are corrosion-resistant, easy to clean, and meet the needs of kitchen environments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the easily disassembled stainless steel smoke hood of this utility model.

[0023] Figure 2 This is a schematic diagram showing the connection between the mounting bracket and the mounting block of this utility model.

[0024] Figure 3This is a schematic diagram of the upper surface of the mounting bracket of this utility model.

[0025] Figure 4 This is a schematic diagram of the connection between the worm gear and the turbine of this utility model.

[0026] In the diagram: 1. Smoke hood; 2. Connecting pipe; 3. Mounting plate; 4. Support plate; 5. Protective box; 6. Connector; 7. Fixing block; 8. Fixing groove; 9. Connecting plate; 10. Mounting block; 11. Slide plate; 12. Filter screen; 13. Mounting bracket; 14. Clamping plate; 15. Concave plate; 16. Moving sleeve; 17. Worm gear; 18. Turbine; 19. Double-ended threaded rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4 This utility model provides a new technical solution: a stainless steel fume hood that is easy to disassemble, including a fume hood 1, a connecting pipe 2 that communicates with the interior of the fume hood 1 is fixedly connected to the upper surface of the fume hood 1, an exhaust fan is installed inside the connecting pipe 2, a mounting bracket 13 is installed inside the fume hood 1, and a fixing component is installed on the mounting bracket 13 and the fume hood 1. The fixing component includes a protective box 5, which is fixedly connected to the front surface of the fume hood 1, and a bidirectional threaded rod 19 is rotatably connected to the left and right inner walls inside the protective box 5.

[0029] Among them, the outer wall of the bidirectional threaded rod 19 is fixedly sleeved with a turbine 18, and the front surface of the turbine 18 is provided with a worm 17. The worm 17 and the turbine 18 mesh together, and the worm 17 is rotatably connected to the upper and lower inner walls of the protective box 5.

[0030] The upper end of the worm gear 17 rotates through the upper surface of the protective box 5, and the upper end of the worm gear 17 is fixedly connected to the connector 6.

[0031] Furthermore, the outer wall of the bidirectional threaded rod 19 is threaded with two movable sleeves 16, and the upper and lower surfaces of the two movable sleeves 16 are fixedly connected with clamping plates 14. The ends of the four clamping plates 14 away from the movable sleeves 16 slide through the outer surface of the protective box 5.

[0032] Furthermore, the fixing assembly also includes a connecting plate 9, which is fixedly connected to the lower surface of the mounting bracket 13, and the mounting plate 3 is fixedly connected to the lower surface of the connecting plate 9.

[0033] Furthermore, two support plates 4 are fixedly connected to the upper surface of the mounting plate 3, and a fixing block 7 is fixedly connected to the upper surface of each of the two support plates 4.

[0034] Furthermore, each of the four fixing blocks 7 has a fixing groove 8, and the four locking plates 14 are respectively slidably engaged into the inner wall of the corresponding fixing groove 8;

[0035] The number of fixed components is two, and the structure of the two fixed components is set as a front-to-back mirror image.

[0036] Furthermore, two mounting blocks 10 are fixedly connected to the upper surface of the mounting bracket 13, and concave plates 15 are fixedly connected to the upper surfaces of the two mounting blocks 10.

[0037] Furthermore, slide plates 11 are slidably connected to the concave parts of both concave plates 15, and filter screens 12 are fixedly connected to the opposite surfaces of the two slide plates 11.

[0038] Furthermore, when using this easily removable stainless steel fume hood, to replace or clean the filter 12, the operator first connects it to the two connectors 6 using external tools.

[0039] Then, the connector 6 is rotated, which drives the worm 17 to rotate. The worm 17 meshes with the turbine 18, driving the turbine 18 and the bidirectional threaded rod 19 to rotate synchronously. Since the threads at the left and right ends of the bidirectional threaded rod 19 are opposite, the two moving sleeves 16 move in opposite directions under the action of thread transmission, causing the four clamping plates 14 to exit from the fixing slots 8 of the fixing block 7, thus releasing the lock on the connecting plate 9 and the mounting bracket 13.

[0040] With the mounting bracket 13 no longer constrained by the clamping plate 14, the staff can horizontally pull the mounting bracket 13 out of the inside of the fume hood 1, exposing the internal filter screen 12.

[0041] The filter screen 12 is mounted on the mounting frame 13 through the sliding engagement of the slide plate 11 and the concave plate 15. By pulling the slide plate 11 outward along the groove of the concave plate 15, the filter screen 12 can be removed from the mounting frame 13 for cleaning or replacement.

[0042] After the replacement is completed, the new filter screen 12 is inserted into the concave plate 15 through the sliding plate 11, and the mounting bracket 13 is pushed back into the smoke hood 1 so that the fixing groove 8 of the fixing block 7 is aligned with the card plate 14.

[0043] Among them, the reverse rotating connector 6, the worm gear 17 drives the bidirectional threaded rod 19 to reverse, the two moving sleeves 16 move towards each other, and the four clamping plates 14 are reinserted into the fixing groove 8, which firmly fixes the mounting bracket 13 inside the smoke hood 1.

[0044] Among them, the self-locking characteristic of the worm gear 17 mechanism of the turbine 18 can prevent the card plate 14 from loosening due to vibration when the exhaust hood 1 is working, ensuring the stability of the mounting bracket 13. The exhaust hood and mounting bracket made of stainless steel are corrosion-resistant, easy to clean, and meet the needs of kitchen environment.

[0045] The linkage design of the turbine 18, worm gear 17 and bidirectional threaded rod 19 enables the quick disassembly and fixing of the mounting bracket 13, thereby facilitating the overall disassembly and installation of the mounting bracket 13. The concave plate 15 and sliding plate 11 facilitate the disassembly and installation of the filter screen 12, improving the cleaning convenience of the fume hood 1.

[0046] Structural Description:

[0047] Smoke hood 1

[0048] Location: The main structure of the overall device, located on the outermost layer.

[0049] Material: Stainless steel (corrosion resistant, easy to clean, and meets the requirements of a kitchen with high oil stains).

[0050] Function:

[0051] Oil fume collection: As the initial collection space for oil fumes, it covers the area above the stove and absorbs the oil fumes generated during cooking through openings.

[0052] Structural support: Components such as fixed connecting pipe 2 and protective box 5 form a complete smoke exhaust system.

[0053] Connecting pipe 2

[0054] Location: The upper surface of the smoke hood 1, which is connected to the interior of the smoke hood 1 and extends upward.

[0055] Material: Stainless steel (same material as exhaust hood 1 to ensure sealing and corrosion resistance).

[0056] Structure: An internal exhaust fan (not numbered) is installed, and the fan blades are usually made of metal or high-temperature resistant plastic.

[0057] Function:

[0058] Fume transmission: The fumes inside the exhaust hood 1 are transported upwards to the subsequent exhaust duct (such as the main kitchen exhaust duct) by the suction of the exhaust fan.

[0059] Power interface: Connects to the power supply of the exhaust fan to provide power for the exhaust of cooking fumes.

[0060] Mounting plate 3

[0061] Location: Located below the mounting bracket 13, and fixedly connected to the mounting bracket 13 via the connecting plate 9.

[0062] Material: Stainless steel (compatible with the overall structure, ensuring strength and corrosion resistance).

[0063] Function:

[0064] Bottom support: Supporting components such as support plate 4 and fixing block 7 form the bottom support structure of mounting frame 13.

[0065] Interface compatibility: The installation position can be adjusted according to the size of the stove to ensure that the exhaust hood 1 is aligned with the stove.

[0066] Support plate 4

[0067] Location: Two are symmetrically arranged on the upper surface of mounting plate 3.

[0068] Material: Stainless steel (integrated with mounting plate 3 or welded to fix).

[0069] Function:

[0070] Vertical support: Extends upward and is fixedly connected to the fixing block 7, transferring the weight of the mounting bracket 13 to the mounting plate 3, thereby enhancing structural stability.

[0071] Positioning and guidance: Ensure that the fixing block 7 is precisely aligned with the card plate 14 inside the protective box 5, so as to facilitate quick docking during installation.

[0072] Protective box 5

[0073] Location: Two symmetrically arranged on the left and right sides of the front surface of the smoke hood 1 (depending on the number of fixed components).

[0074] Material: Stainless steel (sealed enclosure structure to prevent oil from entering internal mechanical parts).

[0075] Function:

[0076] Mechanical protection: accommodates transmission components such as the bidirectional threaded rod 19, turbine 18, and worm gear 17, preventing corrosion from oil fumes and damage from external forces.

[0077] Operating interface: A through hole is provided at the top to allow the connector 6 at the upper end of the worm gear 17 to extend out, facilitating operation with external tools.

[0078] Connector 6

[0079] Location: The upper end of the worm gear 17, penetrating the upper surface of the protective box 5 and exposed.

[0080] Material: Metal (such as stainless steel or aluminum alloy), the surface can be processed into hexagonal, square and other tool-compatible shapes.

[0081] Function:

[0082] Power input: The worm gear 17 is rotated by turning external tools such as wrenches and screwdrivers, thereby controlling the unlocking / locking state of the fixed component.

[0083] Anti-accidental touch design: The exposed part is of moderate size, which is convenient to operate and avoids accidental rotation caused by accidental collision.

[0084] Fixed block 7

[0085] Location: On the upper surface of support plate 4, one is set on the top of each support plate 4, for a total of two (corresponding to the front and rear sets of fixing components).

[0086] Material: Stainless steel (welded or bolted to support plate 4).

[0087] Structure: A fixing groove 8 (with a rectangular or trapezoidal cross-section) is provided on the upper surface.

[0088] Function:

[0089] Snap-fit ​​carrier: The fixing groove 8 cooperates with the snap plate 14 to achieve mechanical locking between the mounting bracket 13 and the smoke hood 1.

[0090] Force transmission: The lateral thrust of the clamping plate 14 is converted into a vertical constraint force to ensure the stability of the mounting bracket 13.

[0091] Fixed slot 8

[0092] Location: The upper surface of fixing block 7 is a through groove.

[0093] Dimensions: Match the cross-sectional shape of the card plate 14 (e.g., width and depth are consistent).

[0094] Function:

[0095] Limit guide: guides the insertion or withdrawal of the card plate 14 to ensure the accuracy of the fixed component's movement.

[0096] Anti-dislodgement design: The groove wall fits tightly with the clamping plate 14, and with the self-locking characteristics of the worm gear, vibration can prevent the clamping plate 14 from loosening.

[0097] Connecting plate 9

[0098] Location: On the lower surface of mounting bracket 13, fixedly connected in the center.

[0099] Material: Stainless steel (thickness slightly greater than mounting bracket 13 to enhance connection strength).

[0100] Function:

[0101] Force transmission bridge: The weight of the mounting bracket 13 is transferred to the mounting plate 3 and linked with the support plate 4, the fixing block 7 and the clamping plate 14.

[0102] Structural integration: The mounting bracket 13 is integrated with the bottom support structure (mounting plate 3, support plate 4, etc.) to facilitate overall disassembly.

[0103] Installing Block 10

[0104] Location: Two are symmetrically arranged on the upper surface of mounting bracket 13.

[0105] Material: Stainless steel (welded or bolted to mounting bracket 13).

[0106] Function:

[0107] Concave plate support: The concave plate 15 is fixedly connected upwards, providing an installation guide for the filter screen 12.

[0108] Stress distribution: The weight of the filter screen 12 is evenly distributed to the mounting frame 13 to avoid local stress concentration.

[0109] Skateboard 11

[0110] Location: One on each side of the groove in the concave plate 15, fixedly connected to the filter screen 12.

[0111] Material: Stainless steel or engineering plastic (smooth surface to reduce sliding resistance).

[0112] Structure: The cross-section is T-shaped or L-shaped, forming a sliding fit with the groove of the concave plate 15.

[0113] Function:

[0114] Guide rail sliding: allows the filter screen 12 to be pulled out or inserted along the length of the concave plate 15, enabling quick disassembly.

[0115] Anti-fall limit: The protruding part of the slide plate 11 is embedded in the groove of the concave plate 15 to prevent the filter screen 12 from falling off vertically.

[0116] Filter 12

[0117] Location: Inside the mounting bracket 13, connected to the concave plate 15 via the sliding plate 11.

[0118] Material: Stainless steel wire mesh or aluminum alloy wire mesh (fine pore size to filter grease particles in oil fumes).

[0119] Function:

[0120] Fume filtration: intercepts oil droplets and solid particles in cooking fumes, preventing them from entering the exhaust duct and causing blockages or fire hazards.

[0121] Replaceable design: After being disassembled via the slide plate 11, it can be washed or replaced individually to maintain smoke extraction efficiency.

[0122] Mounting rack 13

[0123] Location: Inside the smoke hood 1, connected to the smoke hood 1 via a fixing component.

[0124] Material: Stainless steel frame (made of rectangular tubes or angle steel welded together).

[0125] Function:

[0126] Component carrier: Integrating mounting plate 3, connecting plate 9, mounting block 10 and other components to form the mounting base of filter screen 12.

[0127] Detachable unit: The entire unit can be pulled out or installed from the fume hood 1 by unlocking / locking the fixing components, which facilitates maintenance.

[0128] Cardboard 14

[0129] Location: The upper and lower surfaces of the movable sleeve 16, each set of fixing components contains four (two on the top and two on the bottom), extending outward through the side wall of the protective box 5.

[0130] Material: Stainless steel (thickness matches the fixing groove 8 to ensure snap-fit ​​strength).

[0131] Function:

[0132] Mechanical locking: Insert the mounting bracket 13 into the fixing groove 8 of the fixing block 7 to rigidly connect the mounting bracket 13 to the smoke hood 1.

[0133] Synchronous movement: The moving sleeve 16 slides left and right on the bidirectional threaded rod 19 to switch between unlocked (moving outward) and locked (moving inward) states.

[0134] Concave plate 15

[0135] Location: Two are placed symmetrically on the upper surface of mounting block 10.

[0136] Material: Stainless steel (the inside of the tank is smooth, making it easy for the slide plate 11 to slide).

[0137] Structure: The cross-section is U-shaped or concave, with the opening facing upwards.

[0138] Function:

[0139] Sliding guide rail: Provides a linear motion track for the slide plate 11, ensuring that the filter screen 12 is smoothly pulled out or inserted.

[0140] Dust and oil resistant: The grooved structure reduces direct contact between oil fumes and the slide plate 11, reducing the risk of jamming.

[0141] Mobile Set 16

[0142] Location: Inside the protective box 5, fitted onto the bidirectional threaded rod 19, one on each side.

[0143] Material: Metal (such as copper or stainless steel), with internal threads machined to match the double-threaded rod 19.

[0144] Function:

[0145] Threaded drive: When the bidirectional threaded rod 19 rotates, the two moving sleeves 16 move synchronously in opposite or opposite directions because the left and right threads are in opposite directions.

[0146] Force transmission hub: converts the rotational motion of the bidirectional threaded rod 19 into the linear motion of the clamping plate 14, thereby realizing the motion control of the fixed component.

[0147] Worm Gear 17

[0148] Location: Inside the protective box 5, vertically installed, with the upper and lower ends rotatably connected to the inner wall of the protective box 5.

[0149] Material: Metal (such as steel or copper alloy), with hardened tooth surfaces.

[0150] Structure: The lower end meshes with the turbine 18, and the upper end extends to the outside of the protective box 5 and connects to the head 6.

[0151] Function:

[0152] Transmission conversion: The rotational motion of the connector 6 is transmitted to the turbine 18 to achieve a 90° power conversion.

[0153] Self-locking function: Utilizing the self-locking characteristics of worm gear transmission (worm lead angle is less than friction angle), the locking plate 14 is prevented from rotating and unlocking due to vibration after locking.

[0154] Turbo 18

[0155] Location: Inside the protective box 5, horizontally positioned, meshing with the worm gear 17.

[0156] Material: Metal (such as copper alloy, which has good wear resistance) or engineering plastic (low noise).

[0157] Structure: The teeth are evenly distributed around the circumference and match the helical teeth of the worm gear 17.

[0158] Function:

[0159] Speed ​​increase or decrease: Based on the gear ratio of the worm gear, the rotational speed is increased or decreased to adjust the moving speed of the chuck 14.

[0160] Power transmission: Drives the bidirectional threaded rod 19 to rotate, indirectly controlling the movement of the moving sleeve 16 and the clamping plate 14.

[0161] Double-ended threaded rod 19

[0162] Location: Inside the protective box 5, horizontally set, with the left and right ends having opposite thread directions (left thread and right thread).

[0163] Material: Stainless steel (smooth surface, high thread precision).

[0164] Function:

[0165] Motion conversion: During rotation, the two moving sleeves 16 are driven by the thread to move synchronously in opposite directions, thereby opening or closing the clamping plate 14.

[0166] Center positioning: The unthreaded area in the middle of the threaded rod serves as the axis of rotation, ensuring that the left and right moving sleeve 16 moves symmetrically and synchronously.

[0167] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable stainless steel exhaust hood, characterized in that, include: A smoke hood (1) is fixedly connected to the upper surface of the smoke hood (1) and communicates with its interior. An exhaust fan is installed inside the connecting pipe (2), and a mounting bracket (13) is installed inside the smoke hood (1). The fixing component is set on the mounting bracket (13) and the smoke hood (1). The fixing component includes a protective box (5). The protective box (5) is fixedly connected to the front surface of the smoke hood (1). The left and right inner walls inside the protective box (5) are rotatably connected with a two-way threaded rod (19). Among them, the outer wall of the double threaded rod (19) is fixedly sleeved with a turbine (18), and the front surface of the turbine (18) is provided with a worm (17). The worm (17) and the turbine (18) mesh together, and the worm (17) is rotatably connected to the upper and lower inner walls of the protective box (5). The upper end of the worm (17) rotates through the upper surface of the protective box (5), and the upper end of the worm (17) is fixedly connected to the connector (6).

2. A stainless steel exhaust hood according to claim 1, wherein: The outer wall of the bidirectional threaded rod (19) is threaded with two movable sleeves (16). The upper and lower surfaces of the two movable sleeves (16) are fixedly connected with clamping plates (14). The ends of the four clamping plates (14) away from the movable sleeves (16) slide through the outer surface of the protective box (5).

3. A stainless steel exhaust hood according to claim 1, wherein: The fixing assembly also includes a connecting plate (9), which is fixedly connected to the lower surface of the mounting bracket (13), and the lower surface of the connecting plate (9) is fixedly connected to the mounting plate (3).

4. A stainless steel exhaust hood according to claim 3, wherein: The upper surface of the mounting plate (3) is fixedly connected to two support plates (4), and the upper surfaces of the two support plates (4) are fixedly connected to a fixing block (7).

5. A stainless steel exhaust hood according to claim 4, wherein: Each of the four fixing blocks (7) has a fixing groove (8), and the four locking plates (14) slide into the inner wall of the corresponding fixing groove (8); The number of fixed components is two, and the structure of the two fixed components is set as a front-to-back mirror image.

6. A stainless steel exhaust hood according to claim 1, wherein: The upper surface of the mounting bracket (13) is fixedly connected to two mounting blocks (10), and the upper surface of each mounting block (10) is fixedly connected to a concave plate (15).

7. A disassembleable stainless steel fume hood according to claim 6, characterized in that: The concave portions of the two concave plates (15) are slidably connected to slide plates (11), and the opposite surfaces of the two slide plates (11) are fixedly connected to filter screens (12).

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