CN112484106A - A hold up cigarette board and lampblack absorber for lampblack absorber - Google Patents

A hold up cigarette board and lampblack absorber for lampblack absorber Download PDF

Info

Publication number
CN112484106A
CN112484106A CN201911310822.9A CN201911310822A CN112484106A CN 112484106 A CN112484106 A CN 112484106A CN 201911310822 A CN201911310822 A CN 201911310822A CN 112484106 A CN112484106 A CN 112484106A
Authority
CN
China
Prior art keywords
baffle
smoke inlet
smoke
range hood
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911310822.9A
Other languages
Chinese (zh)
Inventor
谷海洋
龚东巧
王书春
栾明业
王中妮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Smart Technology R&D Co Ltd
Haier Smart Home Co Ltd
Qingdao Haier Wisdom Kitchen Appliance Co Ltd
Original Assignee
Qingdao Haier Smart Technology R&D Co Ltd
Haier Smart Home Co Ltd
Qingdao Haier Wisdom Kitchen Appliance Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Smart Technology R&D Co Ltd, Haier Smart Home Co Ltd, Qingdao Haier Wisdom Kitchen Appliance Co Ltd filed Critical Qingdao Haier Smart Technology R&D Co Ltd
Publication of CN112484106A publication Critical patent/CN112484106A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • F24C15/2021Arrangement or mounting of control or safety systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

The invention relates to a smoke collecting plate for a range hood and the range hood. The smoke collecting plate comprises two side baffles which are sequentially arranged along the transverse direction, and each side baffle is positioned at one side below the smoke inlet of the range hood; each side baffle is provided with a first side and a second side which are sequentially arranged along the transverse direction, and the second side is close to the middle part of the smoke inlet; each side dam is rotatably disposed such that the first side of the side dam is rotated upward to a predetermined position for blocking the flow of air from flowing out of the first side of the side dam into the smoke inlet. Aiming at the burner using the double-end stove, when the cooking zones at two sides are opened, the downward turning angles of the two side baffles can be adjusted to realize the control of the smoke inlet area, thereby realizing the adjustment of air inlet pressure and air speed. When the unilateral cooking area is used, the side baffle plate on the other side can be adjusted to upwards overturn and abut against the inner side of the smoke cavity, so that the semi-closed cavity is formed to shield the air inlet in the direction of the other side, the integral air pressure on the side of the range hood is increased, and the working efficiency of the range hood is improved.

Description

A hold up cigarette board and lampblack absorber for lampblack absorber
Technical Field
The invention relates to the field of range hoods, in particular to a smoke collecting plate for a range hood and the range hood.
Background
The existing range hood can not quickly and completely suck the oil smoke generated during cooking, easily causes the oil smoke to overflow and has damage to the respiratory system, the exposed skin and the like of people. In order to improve the efficiency of the range hood for absorbing oil smoke, various range hoods with smoke guide plates appear in the market. The range hood on the market at present mainly includes three types of tower type machine, T type machine, side suction machine, and the application technique of smoke deflector is more mature on tower type, arc, T type machine range hood, changes the wind pressure wind speed in original smoking region through smoke deflector's structural style and space separation, plays the effect that improves the oil smoke clean rate. However, the inventor finds that the existing T-shaped, tower-shaped and arc-shaped range hood has a high hanging point and is far away from a cooking area, although the air inlet and outlet quantity of the range hood can be adjusted through the high and low gears corresponding to the operation of the motor, the area of a smoke inlet cannot be adjusted; when a single-side gas appliance is used for cooking, the range hood sucks a large amount of smokeless air, so that resource waste is caused.
Disclosure of Invention
The invention aims to overcome at least one defect of the existing range hood and provides a smoke collecting plate for the range hood and the range hood, wherein the smoke collecting plate can adjust and close the air inlet at the air inlet port on one side to adapt to the cooking of a gas cooker on one side, and the range hood has high intellectualization and cooking environment adaptability.
To this end, in one aspect, the present invention provides a smoke collecting plate for a range hood, comprising:
the two side baffles are sequentially arranged along the transverse direction, and each side baffle is positioned on one side below the smoke inlet of the range hood;
each side baffle is provided with a first side and a second side which are sequentially arranged along the transverse direction, and the second side is close to the middle part of the smoke inlet; and is
Each side baffle is rotatably arranged, so that the first side of the side baffle rotates upwards to a preset position for blocking airflow flowing into the smoke inlet from the outside of the first side of the side baffle.
Optionally, the cigarette gathering plate further comprises a middle baffle plate, which is arranged between the two side baffle plates, and the second side of each side baffle plate is rotatably installed on the middle baffle plate.
Optionally, the intermediate baffle is provided with a plurality of smoke inlet holes.
Optionally, a plurality of the smoke inlet holes are arranged in the middle of the middle baffle plate extending along the front and the back of the middle baffle plate.
Optionally, the intermediate baffle is arched downward to form an arch extending in the fore-and-aft direction.
Optionally, the cigarette gathering plate further comprises a lifting device, and the two side baffles are mounted on the lifting device to perform lifting movement.
Optionally, the lifting device comprises a plurality of lifting rods, and the two side baffles are connected to the lower ends of the lifting rods.
Optionally, the distance between the second sides of two of the side guards is 1/4 to 3/5 of the width of the side guard.
Optionally, each side baffle is perpendicular to the axis of the smoke inlet, and the first side of the side baffle is outside the edge of the corresponding side port of the smoke inlet.
The invention also provides a range hood, which comprises a range hood main body, wherein the range hood main body is provided with a smoke inlet cavity with a downward opening or a forward lower opening, a smoke inlet arranged on the top wall of the cavity of the smoke inlet cavity, and a smoke collecting plate in any embodiment;
the smoke collecting plate is arranged on the lower side of the smoke inlet, and each side baffle is positioned on one side below the smoke inlet of the range hood;
each side baffle can rotate to a preset position to be in contact with the cavity peripheral wall of the smoke inlet cavity, and airflow is blocked from flowing into the smoke inlet from the first side of the side baffle.
In the smoke collecting plate and the range hood, the two side baffles which are rotatably arranged are arranged, so that for a burner using a double-end stove, when cooking areas on two sides are opened, the control of smoke inlet area can be realized by adjusting the downward turning angles of the two side baffles, the adjustment of air inlet pressure and air speed is realized, and the oil smoke absorption efficiency of the range hood is improved. When the unilateral cooking area is used, the side baffle plate on the other side can be adjusted to upwards overturn and abut against the inner side of the smoke cavity, so that the semi-closed cavity is formed to shield the air inlet in the direction of the other side, the integral air pressure on the side of the range hood is increased, and the working efficiency of the range hood is improved. The side baffle on the corresponding side can be adjusted to be turned downwards, the area of the smoke inlet is increased, the air quantity is improved, and the oil smoke absorption efficiency of the range hood is further improved.
The invention can solve the problems that the T-shaped, tower-shaped and arc-shaped range hoods can not flexibly adjust the smoke inlet area under different cooking conditions and can not focus wind power and wind pressure through structural movement during single-side cooking, and can improve the oil smoke absorption efficiency of the range hoods.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a smoke collecting plate for a range hood according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a range hood according to an embodiment of the present invention;
FIG. 3 is a schematic bottom view of the range hood shown in FIG. 2;
FIG. 4 is a schematic cross-sectional view of the range hood shown in FIG. 2;
fig. 5 to 9 are reference views respectively showing a use state of the range hood shown in fig. 2;
fig. 10 is a schematic structural view of the range hood shown in fig. 5.
Detailed Description
Fig. 1 is a schematic structural view of a smoke collecting plate for a range hood according to an embodiment of the present invention. As shown in fig. 1, and referring to fig. 2 to 10, an embodiment of the present invention provides a smoke collecting plate 100 for a range hood, where the smoke collecting plate 100 includes two side baffles 20. The two side baffles 20 are sequentially arranged along the transverse direction, and each side baffle 20 is positioned on one side below the smoke inlet 211 of the range hood. Each side dam 20 has a first side and a second side sequentially arranged in the transverse direction, the second side being adjacent to the middle of the smoke inlet 211. Each side barrier 20 is rotatably disposed such that a first side of the side barrier 20 is rotated upward to a predetermined position for blocking the flow of air flowing from the outside of the first side of the side barrier 20 into the smoke inlet 211. For example, as shown in fig. 5 and 10, one side baffle 20 of the smoke collecting plate 100 is in contact with the rest of the range hood to block the airflow from flowing from the outside of the side baffle 20 to the smoke inlet 211 of the range hood, so that when one side of the double-end range does not work, the side baffle 20 of the side can be closed, so as to facilitate the discharge of the oil smoke when the other side of the double-end range works.
That is to say, in the smoke collecting plate 100 of the embodiment of the present invention, because the two side baffles 20 are rotatably disposed, for the gas appliance using the dual-head range, when the cooking areas on both sides are opened, the smoke inlet area can be controlled by adjusting the downward-turning angle of the two side baffles 20, so as to adjust the air inlet pressure and the air speed, and improve the oil smoke absorption efficiency of the range hood. When using unilateral culinary art district, can adjust the side shield 20 of opposite side and up overturn and support the smoke chamber inboard to form the air inlet that semi-closed cavity has shielded the opposite side direction, thereby increase the whole wind pressure of this side of range hood, improve the work efficiency etc. of lampblack absorber. The side baffle 20 at the corresponding side can be adjusted to be turned down, the area of the smoke inlet 211 is increased, the air quantity is improved, and the oil smoke absorption efficiency of the range hood is further improved.
In some embodiments of the present invention, the smoke collecting plate 100 further comprises a middle barrier 30 disposed between the two side barriers 20, and a second side of each side barrier 20 is rotatably mounted to the middle barrier 30. The side baffle 20 and the middle baffle 30 of both sides constitute an integrated cigarette board that holds together, and side baffle 20 is along horizontal arrangement, and the flue gas gets into the main tank of lampblack absorber from side baffle 20 all around, has enlarged the air inlet region in other words, strengthens the smoking effect. Preferably, the intermediate baffle 30 is provided with a plurality of smoke inlet holes 31. For example, a plurality of smoke inlet holes 31 are provided in the middle of the intermediate barrier 30 extending forward and rearward thereof. Different flow fields can be formed by feeding smoke from the middle smoke inlet hole 31. Of course, the intermediate baffle 30 may not have a smoke inlet.
In some embodiments of the invention, the intermediate baffle 30 is bowed downward to form a camber that extends in the fore-aft direction. Different flue gas flow fields may also be formed. The cigarette collecting plate 100 in this embodiment may also be referred to as a book-roll type cigarette collecting plate. The distance between the second sides of the two side guards 20 is 1/4 to 3/5 of the width of the side guards 20. Such a ratio is advantageous for stabilizing the strength of the cigarette collecting plate 100 and maintaining the best smoking effect. When each side dam 20 is perpendicular to the axis of the smoke inlet 211, a first side of the side dam 20 is outside the edge of the corresponding side port of the smoke inlet 211. Therefore, the smoke suction area is enlarged, and the smoke is more favorably sucked into the main fan and discharged outdoors.
In some embodiments of the present invention, as shown in fig. 9, the cigarette collecting plate 100 further comprises a lifting device, and the two side guards 20 are mounted to the lifting device to perform lifting movement. For example, the lifting device includes a plurality of lifting rods 40, and the two side guards 20 are coupled to the lower ends of the lifting rods 40. The lifting rod 40 may be a telescopic rod. A lifting rod 40 may be provided at both front and rear ends of the second side of each side guard 20. The lifting device can integrally lift the two side baffles 20 and the middle baffle 30 to form different lifting states, and can correspond to different user using states, thereby matching with corresponding flow fields.
The core driving mechanism such as a motor for controlling the rotation and elevation of the side barrier 20 is located above the middle barrier 30, and does not hinder the smoke intake. When the intermediate baffle 30 is provided with the smoke inlet hole 31, a motor or the like may be provided at a position distant from the smoke inlet hole 31. The side baffle 20 can be connected to the middle baffle 30 through the turnover structure, the turnover structure can comprise a rotating shaft, the rotating shaft can be arranged in rotating holes at two sides of the middle baffle 30 and is connected to the side baffle 20 through a plurality of points, so that the connecting rod of the turnover structure is exposed less, is not easily contacted by oil smoke, and reduces the possibility of being stained with oil stains.
Further, as shown in fig. 4 to 8, the two side guards 20 of the cigarette collecting plate 100 can be rotated to a plurality of positions to form a plurality of operation modes. Taking a range hood with the smoke inlet 211 facing downward as an example, as shown in fig. 4, two side baffles 20 of the smoke collecting plate 100 can be in a horizontal state. As shown in fig. 5, one side baffle 20 of the smoke collecting plate 100 is at the preset position, i.e. at the position contacting with other parts of the range hood, and the other side baffle 20 is in a horizontal state. As shown in fig. 6 and 7, one side baffle 20 of the smoke collecting plate 100 is at the above-mentioned preset position, i.e. at a position contacting with other parts of the range hood, and a first side of the other side baffle 20 can be rotated downward in a downward inclined state. As shown in fig. 8, one side flap 20 of the cigarette collecting plate 100 is in a horizontal state, and a first side of the other side flap 20 is rotatable downward in a downward inclined state. Alternatively, the first sides of the two side guards 20 may be rotated downward in a downwardly inclined state. Both side guards 20 can be moved downward as shown in fig. 9, and the flip-up or flip-down angle can be changed as well. The movement of the side baffle plate 20 can be flexibly adjusted, the control of the air inlet area of the range hood is realized, and the air inlet angle, the air inlet amount and the like of the range hood are adjusted through the deflection movement and/or the lifting movement of the side baffle plate 20.
In view of the fact that many families use the double-end stove, the smoke collecting plate 100 of the embodiment of the invention is designed in a targeted structure. When the cooking areas on the two sides are opened, the smoke inlet area can be controlled by adjusting the downward turning angle of the left and right side baffles 20, so that the air inlet pressure and the air speed can be adjusted, and the smoke absorption efficiency of the range hood is improved.
When the right cooking area is used alone, the left baffle 20 can be adjusted to turn upwards and abut against the inner side of the smoke cavity, if the right baffle 20 is kept at the original starting point of the flat plate, the formed semi-closed cavity shields the air inlet in the left direction, and therefore the integral air pressure on the right side of the range hood is increased; the area of the smoke inlet 211 can be increased by adjusting the downward turning of the right baffle 20, which is beneficial to improving the air quantity; the set downward-turning gear of the motor for driving the side baffle 20 to turn downward can be set according to actual needs, and if the smoke inlet area is larger, the downward-turning gear can be realized by increasing the downward-turning angle. When the left cooking zone is used alone, it can operate as described above. Therefore, when the single-side cooking range is used for cooking, the smoke inlet area and the wind gathering direction of the range hood can be adjusted, and the wind pressure and the wind inlet speed are improved; thereby improving the oil smoke suction efficiency of the range hood.
Compared with other structural schemes which are designed by the inventor and only controlled through lifting, the embodiment of the invention has the advantages of simple scheme, convenient control, strong controllability and excellent oil smoke absorption effect. Other constructions that are controlled solely by elevation may include a fixed guide and a moving guide that reciprocates within the fixed guide to move only a single smoke barrier in elevation.
As shown in fig. 2 to 10, an embodiment of the present invention further provides a range hood, including a range hood main body 200. The range hood body 200 has a smoke inlet chamber 210 with an opening facing downward or forward and downward and a smoke inlet 211 provided at a top wall of the smoke inlet chamber 210. The inside of lampblack absorber main part 200 still is provided with oil strain screen structure 300, just to advancing the mouth of cigarette 211. In particular, the range hood further comprises a smoke collecting plate 100 in any one of the above embodiments. The smoke collecting plate 100 is arranged at the lower side of the smoke inlet 211, and each side baffle 20 is arranged at one side below the smoke inlet 211 of the range hood. Each side flap 20 is rotatable to a predetermined position to contact the cavity perimeter wall of the smoke intake cavity 210 to block airflow from flowing out of a first side of the side flap 20 into the smoke intake 211.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A hold together cigarette board for lampblack absorber, its characterized in that includes:
the two side baffles are sequentially arranged along the transverse direction, and each side baffle is positioned on one side below the smoke inlet of the range hood;
each side baffle is provided with a first side and a second side which are sequentially arranged along the transverse direction, and the second side is close to the middle part of the smoke inlet; and is
Each side baffle is rotatably arranged, so that the first side of the side baffle rotates upwards to a preset position for blocking airflow flowing into the smoke inlet from the outside of the first side of the side baffle.
2. The cigarette gathering plate as recited in claim 1, further comprising:
and the middle baffle plate is arranged between the two side baffle plates, and the second side of each side baffle plate is rotatably arranged on the middle baffle plate.
3. The cigarette gathering plate as recited in claim 2,
the middle baffle is provided with a plurality of smoke inlet holes.
4. The cigarette gathering plate as recited in claim 3,
the plurality of smoke inlet holes are formed in the middle of the middle baffle plate extending along the front and the back of the middle baffle plate.
5. The cigarette gathering plate as recited in claim 2,
the intermediate baffle is arched downward to form an arched portion extending in the front-rear direction.
6. The cigarette gathering plate as recited in any one of claims 1 to 5, further comprising:
and the two side baffles are arranged on the lifting device to perform lifting motion.
7. The cigarette gathering plate as recited in claim 6,
the lifting device comprises a plurality of lifting rods, and the two side baffles are connected to the lower ends of the lifting rods.
8. The cigarette gathering plate as recited in claim 2,
the distance between the second sides of the two side guards is 1/4 to 3/5 of the width of the side guards.
9. The cigarette gathering plate as recited in claim 1,
when each side baffle is perpendicular to the axis of the smoke inlet, the first side of the side baffle is positioned outside the edge of the corresponding side opening of the smoke inlet.
10. A range hood, comprising a range hood body, wherein the range hood body is provided with a smoke inlet cavity with a downward or forward lower opening and a smoke inlet arranged on the top wall of the cavity of the smoke inlet cavity, and is characterized by further comprising a smoke collecting plate as claimed in any one of claims 1 to 9;
the smoke collecting plate is arranged on the lower side of the smoke inlet, and each side baffle is positioned on one side below the smoke inlet of the range hood;
each side baffle can rotate to a preset position to be in contact with the cavity peripheral wall of the smoke inlet cavity, and airflow is blocked from flowing into the smoke inlet from the first side of the side baffle.
CN201911310822.9A 2019-09-12 2019-12-18 A hold up cigarette board and lampblack absorber for lampblack absorber Pending CN112484106A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2019108652453 2019-09-12
CN201910865245 2019-09-12

Publications (1)

Publication Number Publication Date
CN112484106A true CN112484106A (en) 2021-03-12

Family

ID=72630267

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201911310822.9A Pending CN112484106A (en) 2019-09-12 2019-12-18 A hold up cigarette board and lampblack absorber for lampblack absorber
CN201922283364.6U Active CN211625379U (en) 2019-09-12 2019-12-18 A hold up cigarette board and lampblack absorber for lampblack absorber

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201922283364.6U Active CN211625379U (en) 2019-09-12 2019-12-18 A hold up cigarette board and lampblack absorber for lampblack absorber

Country Status (1)

Country Link
CN (2) CN112484106A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113685866A (en) * 2021-08-10 2021-11-23 广东格兰仕集团有限公司 Range hood, smoke stove linkage system and air inlet control method of range hood
CN115031278A (en) * 2022-08-10 2022-09-09 杭州老板电器股份有限公司 Air inlet structure for smoke ventilator, range hood
CN116085842A (en) * 2023-03-07 2023-05-09 杭州老板电器股份有限公司 Smoking adjusting structure, adjusting method and integrated stove
CN117968253A (en) * 2024-03-28 2024-05-03 杭州老板电器股份有限公司 Smoke collecting assembly, combustion heat exchange assembly, gas water heater and control method of gas water heater

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114763918B (en) * 2021-01-11 2023-07-25 宁波方太厨具有限公司 Range hood and control method thereof
CN114060886B (en) * 2021-12-15 2024-03-22 杭州老板电器股份有限公司 Control method and device for range hood and electronic equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113685866A (en) * 2021-08-10 2021-11-23 广东格兰仕集团有限公司 Range hood, smoke stove linkage system and air inlet control method of range hood
CN115031278A (en) * 2022-08-10 2022-09-09 杭州老板电器股份有限公司 Air inlet structure for smoke ventilator, range hood
CN116085842A (en) * 2023-03-07 2023-05-09 杭州老板电器股份有限公司 Smoking adjusting structure, adjusting method and integrated stove
CN117968253A (en) * 2024-03-28 2024-05-03 杭州老板电器股份有限公司 Smoke collecting assembly, combustion heat exchange assembly, gas water heater and control method of gas water heater
CN117968253B (en) * 2024-03-28 2024-06-21 杭州老板电器股份有限公司 Smoke collecting assembly, combustion heat exchange assembly, gas water heater and control method of gas water heater

Also Published As

Publication number Publication date
CN211625379U (en) 2020-10-02

Similar Documents

Publication Publication Date Title
CN211625379U (en) A hold up cigarette board and lampblack absorber for lampblack absorber
CN108548203A (en) A kind of full embedding type range hood with stabilier
CN110686293B (en) Fume exhaust fan
CN111219757A (en) Fume exhaust fan
CN112716313B (en) Exhaust speed self-adaptation adjustable culinary art exhaust structure and baking cooking device
CN110887087B (en) Case assembly and oil fume purification device
CN216790305U (en) Fume exhaust fan
CN114763918B (en) Range hood and control method thereof
CN112484105A (en) A hold up cigarette board and lampblack absorber for lampblack absorber
CN216557243U (en) Fume exhaust fan
CN212691878U (en) Smoke machine
CN109579084B (en) Control method of range hood
CN215863593U (en) Fume exhaust fan
CN219693393U (en) Fume exhauster
CN219083198U (en) Fume exhauster
CN220541189U (en) Fume exhaust fan
CN216521888U (en) Cooking fume exhauster
CN219083200U (en) Fume exhauster
CN112902262B (en) Range hood and working method thereof
CN219868030U (en) Fume exhauster
CN215446578U (en) Fume exhaust fan
CN216557302U (en) Cooking fume exhauster
CN216079981U (en) Fume exhaust fan
CN215523434U (en) Fume exhaust fan
CN108332258A (en) One kind leading cigarette height controllable side-sucking oil smoke sucking machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination