Device for detecting smoke suction effect of range hood

Abstract

The utility model relates to the technical field of equipment detection, in particular to a smoke suction effect detection device for a range hood. The detection device for the smoke suction effect of the range hood comprises a first bearing mechanism, a second bearing mechanism, a first mounting mechanism, a laser, a second mounting mechanism and a photoelectric detector, the first bearing mechanism bears the range hood to be detected, and the second bearing mechanism bears an oil smoke generator below the first bearing mechanism; the first mounting mechanism comprises a plurality of first driving assemblies which are arranged at intervals in the circumferential direction of the to-be-detected range hood, and each first driving assembly can drive the corresponding laser to move in the direction close to or away from the to-be-detected range hood; the second mounting mechanism comprises a plurality of second driving assemblies which are arranged at intervals in the circumferential direction of the to-be-detected range hood, and each second driving assembly is used for driving the corresponding photoelectric detector to move in the direction close to or away from the to-be-detected range hood, so that the oil smoke concentration of each position of the escape area of the range hood is detected, and the detection precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of equipment testing technology, and in particular to a device for testing the smoke extraction effect of a range hood. Background Technology

[0002] Cooking in the kitchen produces a lot of oil fumes. To ensure the health of the cook and reduce indoor particulate pollution, range hoods are usually installed in the kitchen to extract the fumes. The amount of oil fume that escapes is one of the important indicators for evaluating range hoods.

[0003] In related technologies, the light transmission method is usually used to detect the oil fume concentration in the escape zone of a range hood, thereby evaluating the smoke extraction effect of the range hood. However, this detection method can only detect the oil fume concentration at a specific location in the escape zone of the range hood, and cannot effectively detect the oil fume concentration at various locations in the escape zone of the range hood, which greatly reduces the detection accuracy of the smoke extraction effect of the range hood.

[0004] Therefore, there is an urgent need for a device to test the smoke extraction effect of a range hood in order to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a range hood smoke extraction effect detection device that can detect the oil fume concentration at various locations in the escape zone of the range hood, thereby improving detection accuracy.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A device for testing the smoke extraction effect of a range hood, comprising:

[0008] The first supporting mechanism is used to support the range hood to be tested.

[0009] The second support mechanism is located below the first support mechanism and is used to support the fume generator.

[0010] The first mounting mechanism includes a plurality of first driving components arranged at intervals along the circumference of the range hood to be tested. Each first driving component is equipped with a laser. The first driving component can drive the corresponding laser to move horizontally toward or away from the range hood to be tested.

[0011] The second mounting mechanism includes a plurality of second drive components arranged at intervals along the circumference of the range hood to be tested. Each second drive component is provided with a photodetector. The second drive component is configured to drive the corresponding photodetector to move horizontally toward or away from the range hood to be tested.

[0012] Multiple lasers are set up in a one-to-one correspondence with multiple photodetectors, and each laser and its corresponding photodetector are located on opposite sides of the range hood and fume generator in the vertical direction. The lasers are configured to emit light sources toward the corresponding photodetectors, and the photodetectors are configured to detect the light intensity of the light source emitted by the corresponding lasers.

[0013] As an optional solution, each first drive component includes:

[0014] Linear drive components; and

[0015] A rotary drive is mounted on a linear drive, which is configured to drive the rotary drive to move horizontally toward or away from the range hood to be tested. A laser is mounted on the rotary drive, which is configured to drive the laser to rotate around the horizontal direction.

[0016] As an optional solution, the linear drive includes:

[0017] First drive motor;

[0018] The first lead screw is connected to the output end of the first drive motor and extends along the moving direction of the corresponding laser.

[0019] The first nut mounting component is threadedly connected to the first lead screw; and

[0020] The first mounting plate is fixedly connected to the first nut mounting piece, and a rotation drive component is provided on the first mounting plate.

[0021] As an optional solution, the rotary drive includes:

[0022] Rotary motor, mounted on a linear drive component; and

[0023] The fixing component is connected to the output end of the rotary motor, and a laser is fixedly mounted on the fixing component.

[0024] As an optional solution, the rotary drive also includes a fastener, and the fastener includes a first clamping arm and a second clamping arm connected to each other. The first clamping arm and the second clamping arm together clamp to form a clamping groove for clamping and fixing the laser. The fastener is configured to lock the first clamping arm and the second clamping arm.

[0025] As an optional solution, each second drive component includes:

[0026] Second drive motor;

[0027] The second lead screw is connected to the output end of the second drive motor and extends along the moving direction of the corresponding photodetector.

[0028] The second nut mounting component is threadedly connected to the second lead screw; and

[0029] The second mounting plate is fixedly connected to the second nut mounting piece, and a photoelectric detector is provided on the second mounting plate.

[0030] As an optional solution, the range hood smoke extraction effect testing device also includes:

[0031] A first lifting mechanism, wherein a first bearing mechanism is provided on the output end of the first lifting mechanism, and the first lifting mechanism is configured to drive the first bearing mechanism to move vertically relative to a second bearing mechanism; and / or

[0032] The second lifting mechanism has a second bearing mechanism on its output end. The second lifting mechanism is configured to drive the second bearing mechanism to move up and down relative to the first bearing mechanism.

[0033] As an optional solution, the first lifting mechanism includes:

[0034] Third drive motor;

[0035] The third lead screw is connected to the output end of the third drive motor, and extends vertically; and

[0036] The third nut mounting component is threadedly connected to the third lead screw, and the first bearing mechanism is equipped with the third nut mounting component.

[0037] As an optional solution, the second lifting mechanism includes:

[0038] Fourth drive motor;

[0039] The fourth lead screw is connected to the output of the fourth drive motor, and extends vertically.

[0040] The fourth nut mounting component is threadedly connected to the fourth lead screw, and the second bearing mechanism is equipped with the fourth nut mounting component.

[0041] As an optional solution, the range hood smoke extraction effect testing device also includes:

[0042] The protective box houses part of the first lifting mechanism and part of the second lifting mechanism.

[0043] The beneficial effects of this utility model are:

[0044] This invention provides a device for detecting the smoke extraction effect of a range hood. Each laser and its corresponding photodetector are located on opposite sides of the range hood and the smoke generator along the vertical direction. The laser emits light towards the corresponding photodetector, which detects the light intensity emitted by the laser. The smoke concentration in the laser-irradiated area is then obtained through the photodetector's detection value. Furthermore, by adjusting the horizontal distance between the laser on each first drive assembly in the circumferential direction of the range hood and the range hood itself, and by adjusting the horizontal distance between the photodetector on each second drive assembly in the circumferential direction of the range hood and the range hood itself, the smoke concentration at various locations within the escape zone of the range hood can be detected, effectively improving the detection accuracy. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of the range hood smoke extraction effect testing device provided in this embodiment of the utility model;

[0046] Figure 2 This is a schematic diagram of the structure of the first driving component provided in an embodiment of the present invention;

[0047] Figure 3 This is a schematic diagram of the structure of the second driving component provided in an embodiment of the present invention;

[0048] Figure 4 This is a partial structural schematic diagram of the range hood smoke extraction effect testing device provided in this embodiment of the utility model.

[0049] In the picture:

[0050] 1. First bearing mechanism; 2. Second bearing mechanism; 21. Through hole; 3. First mounting mechanism; 31. First drive assembly; 311. Linear drive component; 3111. First lead screw; 3112. First nut mounting component; 3113. First mounting plate; 3114. First guide rail; 312. Rotary drive component; 3121. Rotary motor; 3122. Fixing component; 31221. First clamping arm; 31222. Second clamping arm; 31223. Clamping groove; 32. Mounting frame; 41. Second drive assembly; 411. Second lead screw; 412. Second nut mounting component; 413. Second mounting plate; 414. Second guide rail; 5. First lifting mechanism; 51. Third drive motor; 52. Third lead screw; 53. Third nut mounting component; 54. Synchronous belt; 55. Transmission wheel; 6. Protective box. Detailed Implementation

[0051] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0052] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0055] In existing technologies, the concentration of cooking fumes in the escape zone of a range hood is usually detected by light transmission method to evaluate the smoke extraction effect of the range hood. However, this detection method can only detect the concentration of cooking fumes at a specific location in the escape zone of the range hood, and cannot effectively detect the concentration of cooking fumes at various locations in the escape zone of the range hood, which greatly reduces the accuracy of the detection of the smoke extraction effect of the range hood.

[0056] To solve the above problems, such as Figure 1As shown, this embodiment provides a range hood smoke extraction effect testing device. The device includes a first supporting mechanism 1, a second supporting mechanism 2, a first mounting mechanism 3, a laser (not shown), a second mounting mechanism, and a photodetector (not shown). The first supporting mechanism 1 supports the range hood to be tested. The second supporting mechanism 2 is located below the first supporting mechanism 1 (direction b in the figure) and supports the smoke generator. The first mounting mechanism 3 includes multiple first driving components 31 arranged at intervals along the circumference of the range hood to be tested. Each first driving component 31 is equipped with a laser. The first driving component 31 can drive the corresponding laser along the horizontal direction (direction cd in the figure or...). In the diagram, the second mounting mechanism (f-direction) moves towards or away from the range hood being tested. It includes multiple second driving components 41 arranged circumferentially around the range hood, each equipped with a photodetector. Each second driving component 41 is configured to drive its corresponding photodetector to move horizontally towards or away from the range hood. Multiple lasers are paired with multiple photodetectors, each located on opposite sides of the range hood and fume generator along the vertical direction (ab-direction in the diagram). The lasers are configured to emit light towards their corresponding photodetectors, and the photodetectors are configured to detect the light intensity emitted by the lasers. This embodiment provides a range hood smoke extraction effect detection device where each laser and its corresponding photodetector are located on opposite sides of the range hood and fume generator along the vertical direction. The photodetectors detect the light intensity of the light emitted by the corresponding lasers, thereby obtaining the fume concentration in the laser-irradiated area through the detected values. Furthermore, by adjusting the horizontal distance between the laser on each first drive assembly 31 in the circumferential direction of the range hood under test and the range hood itself, and by adjusting the horizontal distance between the photodetector on each second drive assembly 41 in the circumferential direction of the range hood under test and the range hood itself, the oil fume concentration at various locations in the escape zone of the range hood can be detected, thereby effectively improving the detection accuracy.

[0057] Optionally, in this embodiment, as Figure 1 As shown, the first supporting mechanism 1 is in the form of a supporting frame, which has the advantages of structural stability and reliability, low material usage, and low cost. Optionally, in this embodiment, as... Figure 1 As shown, the second bearing mechanism 2 is in the form of a bearing platform, which has the advantage of stable bearing.

[0058] Optionally, in this embodiment, as Figure 1As shown, four first driving components 31 and four second driving components 41 are arranged at circumferential intervals along the range hood to be tested, thereby effectively detecting the oil fume concentration at various locations in the escape zone of the range hood. Optionally, in this embodiment, the first driving component 31 further includes a mounting frame 32, with one first driving component 31 disposed on the front (side c in the figure), rear (side d in the figure), left (side e in the figure), and right (side f in the figure) side of the mounting frame 32, and a corresponding second driving component 41 below each first driving component 31. In other embodiments, the specific number of first driving components 31 and second driving components 41 can be set according to requirements, as long as multiple first driving components 31 and multiple second driving components 41 correspond one-to-one.

[0059] In this embodiment, as Figure 1 and Figure 2 As shown, each first driving component 31 includes a linear driving member 311 and a rotary driving member 312. The rotary driving member 312 is disposed on the linear driving member 311. The linear driving member 311 is configured to drive the rotary driving member 312 to move horizontally toward or away from the range hood to be detected. A laser is disposed on the rotary driving member 312, and the rotary driving member 312 is configured to drive the laser to rotate around the horizontal direction. The above-described structural design of the first driving component 31 not only enables the laser to move horizontally toward or away from the range hood to be detected, but also enables the laser to rotate around the horizontal direction, effectively increasing the irradiation range of the laser in the escape zone, thereby improving the detection range of the oil fume concentration in the escape zone. Optionally, in this embodiment, the rotary driving member 312 drives the laser to rotate around the horizontal direction by ±90°.

[0060] In this embodiment, as Figure 1 and Figure 2As shown, the linear drive unit 311 includes a first drive motor (not shown), a first lead screw 3111, a first nut mounting member 3112, and a first mounting plate 3113. The first drive motor is mounted on the mounting frame 32. The first lead screw 3111 is connected to the output end of the first drive motor and extends along the movement direction of the corresponding laser. The first nut mounting member 3112 is threadedly connected to the first lead screw 3111. The first mounting plate 3113 is fixedly connected to the first nut mounting member 3112, and a rotary drive member 312 is provided on the first mounting plate 3113. This configuration allows the first drive motor to drive the first lead screw 3111 to rotate, which in turn causes the first nut mounting member 3112 to move the first mounting plate 3113, the rotary drive member 312, and the laser along the first lead screw 3111. Furthermore, the structural design of the linear drive unit 311 results in a simple structure, reliable operation, and high driving accuracy.

[0061] Optionally, in this embodiment, as Figure 1 and Figure 2 As shown, the linear drive component 311 also includes a first guide rail 3114, which is disposed on the mounting frame 32 and extends along the extension direction of the corresponding first lead screw 3111. The first nut mounting component 3112 is slidably connected to the first guide rail 3114. By setting the first guide rail 3114, the movement of the first nut mounting component 3112 is guided, ensuring the smoothness and reliability of the movement of the first nut mounting component 3112.

[0062] In this embodiment, as Figure 2 As shown, the rotary drive 312 includes a rotary motor 3121 and a fixing member 3122. The rotary motor 3121 is mounted on the first mounting plate 3113 of the linear drive 311. The fixing member 3122 is connected to the output end of the rotary motor 3121, and a laser is fixedly mounted on the fixing member 3122. The rotary motor 3121 drives the fixing member 3122 to rotate, thereby driving the laser fixedly mounted on the fixing member 3122 to rotate.

[0063] Optionally, such as Figure 2As shown, the rotary drive component 312 also includes fasteners (not shown in the figure), and the fixing component 3122 includes a first clamping arm 31221 and a second clamping arm 31222 connected to each other. Both the first clamping arm 31221 and the second clamping arm 31222 are drively connected to the output end of the rotary motor 3121. The first clamping arm 31221 and the second clamping arm 31222 together clamp to form a clamping groove 31223, which is used to clamp and fix the laser. The fasteners are used to lock the first clamping arm 31221 and the second clamping arm 31222. After the laser is snapped into the clamping groove 31223, the first clamping arm 31221 and the second clamping arm 31222 are then locked by the fasteners, thereby ensuring the stability and reliability of the clamping groove 31223 in clamping the laser. Furthermore, the above-described configuration allows the fastener 3122 to clamp and fix lasers of different models and sizes via the clamping groove 31223, improving the adaptability of the fastener 3122. Specifically, in this embodiment, the fastener can be a bolt.

[0064] In this embodiment, as Figure 1 and Figure 3 As shown, each second drive assembly 41 includes a second drive motor (not shown in the figure), a second lead screw 411, a second nut mounting member 412, and a second mounting plate 413. The second lead screw 411 is connected to the output end of the second drive motor and extends along the moving direction of the corresponding mounted photodetector. The second nut mounting member 412 is threadedly connected to the second lead screw 411. The second mounting plate 413 is fixedly connected to the second nut mounting member 412, and a photodetector is mounted on the second mounting plate 413. This configuration allows the second drive motor to drive the second lead screw 411 to rotate, which in turn causes the second nut mounting member 412 to move the second mounting plate 413 and the photodetector along the second lead screw 411. Furthermore, the structural design of the second drive assembly 41 results in a simple structure, reliable operation, and high driving accuracy.

[0065] Optionally, in this embodiment, as Figure 1 and Figure 3 As shown, the second bearing mechanism 2 has a through hole 21. The second drive motor is installed inside the second bearing mechanism 2. The second lead screw 411, the second nut mounting part 412, and the second mounting plate part 413 can all pass through the corresponding through hole 21 and extend out of the second bearing mechanism 2. By installing the second drive motor inside the second bearing mechanism 2, the protection of the second drive motor is effectively improved.

[0066] In this embodiment, as Figure 1 and Figure 3As shown, each second drive assembly 41 further includes a second guide rail 414, which is disposed on the second support mechanism 2 and extends out of the second support mechanism 2 through the corresponding through hole 21. The second guide rail 414 extends along the extension direction of the corresponding second lead screw 411, and the second nut mounting member 412 is slidably connected to the second guide rail 414. By setting the second guide rail 414, the movement of the second nut mounting member 412 is guided, ensuring the smoothness and reliability of the movement of the second nut mounting member 412.

[0067] Optionally, in this embodiment, as Figure 4 As shown, the range hood smoke extraction effect testing device also includes a first lifting mechanism 5. A first supporting mechanism 1 is provided on the output end of the first lifting mechanism 5. The first lifting mechanism 5 is used to drive the first supporting mechanism 1 to move up and down relative to the second supporting mechanism 2. By providing the first lifting mechanism 5, it is convenient to adjust the distance between the first supporting mechanism 1 and the second supporting mechanism 2, thereby satisfying the testing of the smoke extraction effect of the range hood at different installation heights. Optionally, in other embodiments, a second lifting mechanism can also be provided. A second supporting mechanism 2 is provided on the output end of the second lifting mechanism, and the second lifting mechanism is used to drive the second supporting mechanism 2 to move up and down relative to the first supporting mechanism 1. Optionally, in other embodiments, both the first lifting mechanism 5 and the second lifting mechanism can be provided simultaneously.

[0068] Optionally, in this embodiment, as Figure 1 and Figure 4 As shown, the first lifting mechanism 5 includes a third drive motor 51, a third lead screw 52, ​​and a third nut mounting component 53. The third drive motor 51 is mounted on the bottom of the second supporting mechanism 2. The third lead screw 52 is connected to the output end of the third drive motor 51 and extends vertically. The third nut mounting component 53 is threadedly connected to the third lead screw 52. The first supporting mechanism 1 is provided with the third nut mounting component 53. This configuration allows the third drive motor 51 to drive the third lead screw 52 to rotate, which in turn causes the third nut mounting component 53 to move the first supporting mechanism 1 up and down relative to the second supporting mechanism 2 along the third lead screw 52. Furthermore, the structural design of the first lifting mechanism 5 makes it simple in structure, reliable in operation, and provides high driving precision. It should be noted that in this embodiment, the mounting frame 32 is also provided with a third nut mounting component 53, enabling the first lifting mechanism 5 to synchronously drive the first supporting mechanism 1 and the first mounting mechanism 3 to move up and down relative to the second supporting mechanism 2 and the second mounting mechanism. Optionally, in this embodiment, the second bearing mechanism 2 is provided with a through hole for the third lead screw 52 to pass through.

[0069] Optionally, in this embodiment, as Figure 4As shown, the first lifting mechanism 5 includes multiple third lead screws 52 arranged at intervals. Each third lead screw 52 has a transmission wheel 55 at its bottom end. A synchronous belt 54 is sleeved on each transmission wheel 55 and the output shaft of the third drive motor 51. The third drive motor 51 drives each third lead screw 52 to rotate synchronously through the synchronous belt 54, ensuring the stability and reliability of driving the first bearing mechanism 1 and the first mounting mechanism 3.

[0070] It should be noted that in other embodiments, the specific structure of the second lifting mechanism is basically the same as that of the first lifting mechanism 5. The second lifting mechanism includes a fourth drive motor, a fourth lead screw, and a fourth nut mounting component. The fourth nut mounting component is threadedly connected to the fourth lead screw, and the second bearing mechanism 2 is provided with the fourth nut mounting component.

[0071] In this embodiment, as Figure 1 and Figure 4 As shown, the range hood smoke extraction effect testing device also includes a protective box 6. The third drive motor 51, transmission wheel 55, and synchronous belt 54 are all housed in the protective box 6, effectively improving the protection of the third drive motor 51, transmission wheel 55, and synchronous belt 54. It should be noted that in other embodiments, some structures in the second lifting mechanism are also housed in the protective box 6, thereby improving the protection of the second lifting mechanism.

[0072] It should be noted that, in this embodiment, the range hood smoke extraction effect detection device also includes an operation console (not shown in the figure). The first lifting mechanism 5, the first drive component 31 and the second drive component 41 are all connected to the operation console. By operating the operation console, the movement of the first lifting mechanism 5, the first drive component 31 and the second drive component 41 can be adjusted, and the driving accuracy can be guaranteed.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for detecting the suction effect of a range hood, characterized in that, The utility model relates to a kind of oil fume generator detection device, including: First bearing mechanism (1), the first bearing mechanism (1) is used to bear the range hood to be detected; Second bearing mechanism (2) is located below the first bearing mechanism (1), and the second bearing mechanism (2) is used to bear oil fume generator; First installation mechanism (3) and laser, the first installation mechanism (3) includes a plurality of first drive assembly (31) spaced apart along the circumference of the range hood to be detected, each first drive assembly (31) is provided with laser, and the first drive assembly (31) can drive corresponding laser to move along the horizontal direction towards the direction close to or away from the range hood to be detected; Second installation mechanism and photoelectric detector, the second installation mechanism includes a plurality of second drive assembly (41) spaced apart along the circumference of the range hood to be detected, each second drive assembly (41) is provided with photoelectric detector, and the second drive assembly (41) is configured to drive corresponding photoelectric detector to move along the horizontal direction towards the direction close to or away from the range hood to be detected; A plurality of lasers and a plurality of photoelectric detectors are correspondingly provided, and each laser and corresponding photoelectric detector are located on the two sides of the range hood and the oil fume generator in vertical direction, the laser is configured to emit light source towards corresponding photoelectric detector, and the photoelectric detector is configured to detect the light intensity of light source emitted by corresponding laser.

2. The cooking fume extractor smoke suction effect detection device according to claim 1, characterized in that, Each first drive assembly (31) includes: Linear drive (311);And Rotary drive (312) is provided on the linear drive (311), the linear drive (311) is configured to drive rotary drive (312) to move along the horizontal direction towards the direction close to or away from the range hood to be detected, and the rotary drive (312) is provided with laser, and the rotary drive (312) is configured to drive laser to rotate around the horizontal direction.

3. The cooking fume detection device of claim 2, wherein The linear drive (311) includes: First drive motor; First screw rod (3111) is in transmission connection with the output end of the first drive motor, and the first screw rod (3111) extends along the moving direction of corresponding installed laser; First nut mounting piece (3112) is in screw connection with the first screw rod (3111);And First mounting plate piece (3113) is fixedly connected with the first nut mounting piece (3112), and the first mounting plate piece (3113) is provided with rotary drive (312).

4. The cooking fume suction effect detection device of claim 2, wherein The rotary drive (312) includes: Rotary motor (3121) is provided on the linear drive (311);And Fixing piece (3122) is in transmission connection with the output end of the rotary motor (3121), and the fixing piece (3122) is fixedly installed with laser.

5. The cooking fume detection device of claim 4, wherein The rotating driving member (312) further comprises a fastener, the fixing member (3122) comprises a first clamping arm (31221) and a second clamping arm (31222) connected together, the first clamping arm (31221) and the second clamping arm (31222) jointly form a clamping groove (31223) for clamping and fixing the laser, and the fastener is configured to lock the first clamping arm (31221) and the second clamping arm (31222).

6. The detection device for detecting suction effect of a cooking fume exhauster according to any one of claims 1 to 5, characterized in that, Each of the second driving assemblies (41) comprises: a second driving motor; a second lead screw (411) in transmission connection with an output end of the second driving motor, the second lead screw (411) extending along a moving direction of the photoelectric detector correspondingly installed; a second nut mounting member (412) in threaded connection with the second lead screw (411); and a second mounting plate member (413) in fixed connection with the second nut mounting member (412), and the second mounting plate member (413) is provided with the photoelectric detector.

7. The detection device according to any one of claims 1 to 5, wherein The range hood smoke suction effect detection device further comprises: a first lifting mechanism (5), the first lifting mechanism (5) is provided with the first bearing mechanism (1) on an output end thereof, and the first lifting mechanism (5) is configured to drive the first bearing mechanism (1) to move up and down relative to the second bearing mechanism (2); and / or a second lifting mechanism, the second lifting mechanism is provided with the second bearing mechanism (2) on an output end thereof, and the second lifting mechanism is configured to drive the second bearing mechanism (2) to move up and down relative to the first bearing mechanism (1).

8. The cooking fume suction effect detection device of claim 7, wherein, The first lifting mechanism (5) comprises: a third driving motor (51); a third lead screw (52) in transmission connection with an output end of the third driving motor (51), the third lead screw (52) extending along the vertical direction; and a third nut mounting member (53) in threaded connection with the third lead screw (52), the first bearing mechanism (1) being provided with the third nut mounting member (53).

9. The cooking fume suction effect detection device of claim 7, wherein, The second lifting mechanism comprises: a fourth driving motor; a fourth lead screw in transmission connection with an output end of the fourth driving motor, the fourth lead screw extending along the vertical direction; and a fourth nut mounting member in threaded connection with the fourth lead screw, the second bearing mechanism (2) being provided with the fourth nut mounting member.

10. The cooking fume suction effect detection device of claim 7, wherein, The range hood smoke suction effect detection device further comprises: a protective box (6), part of the first lifting mechanism (5) and part of the second lifting mechanism are accommodated in the protective box (6).

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