Kitchen range hood

Abstract

The kitchen range hood comprises a range hood body, an exhaust fan body is arranged in the upper end of the range hood body, a bottom frame is arranged on the lower portion of the interior of the range hood body, and a plurality of opening and closing mechanisms are arranged in the middle of the bottom frame side by side; and a lifting frame is movably mounted right below the bottom end of the range hood body. When the cooking bench works, along with opening of the cooking bench, the temperature sensor located on one side of the air draft nozzle right above the cooking bench can detect the temperature, if other cooking benches are not opened, the motors above the other cooking benches can be opened, the motors drive the gears to rotate, the gears move towards one side along the racks, and then the guide sleeves are driven to move synchronously; the guide sleeve moves to drive the fixing frame to move synchronously, and when the fixing frame moves, the corrugated pipe installed between the first connector and the second connector extends and stretches, so that the exhaust nozzles at other positions can move to the position above the cooking bench in a concentrated mode, and oil smoke is exhausted through the exhaust fan body.

Description

Technical Field

[0001] The invention relates to the field of range hoods, in particular to a range hood for kitchens. Background Art

[0002] In modern life, whether it is a home kitchen or a kitchen in a restaurant, a lot of oil smoke is generated during cooking. A range hood is a home appliance used to absorb oil smoke, steam and odor in the kitchen. It is usually installed above the stove or cooking area. It can help keep the kitchen air fresh and reduce the accumulation of oil stains by sucking out the oil smoke and steam generated during cooking, thereby improving the comfort and hygiene of the kitchen environment.

[0003] At present, the range hoods used in the kitchens of catering establishments are not provided with the function of adjusting the position of the exhaust vents. For example, the kitchens of catering establishments are provided with a row of stoves, one of which is in use, while the other stoves are not turned on. However, since the position of the exhaust vents cannot be adjusted, the exhaust vents cannot be concentrated above the turned-on stove to extract oil fumes. This will cause a waste of resources when the entire range hood operates at the same functional rate. Summary of the invention

[0004] The object of the present invention is to provide a kitchen range hood to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A kitchen range hood, comprising

[0007] A range hood body, wherein an exhaust fan body is arranged inside the upper end of the range hood body, a bottom frame is arranged below the range hood body, and a plurality of opening and closing mechanisms are arranged side by side in the middle of the bottom frame;

[0008] A lifting frame is movably installed just below the bottom end of the range hood body, a plurality of fixed frames are arranged side by side in the middle of the lifting frame, and a horizontal moving mechanism is arranged on both sides of the lifting frame and the fixed frame;

[0009] A joint 1 is arranged at the top end of the fixing frame, and a mounting mechanism is arranged between the joint 1 and the opening and closing mechanism.

[0010] Furthermore, a lifting mechanism is provided on the outside of both sides of the range hood body, and the lifting mechanism includes a mounting seat, an electric push rod is fixedly installed on the top of the mounting seat, and hangers are provided on both sides of the top of the lifting frame, and the output shaft of the electric push rod is fixedly connected to the hanger.

[0011] Furthermore, an exhaust mechanism is further provided at the bottom end of the fixed frame, and the exhaust mechanism includes an exhaust nozzle, and the exhaust nozzle is connected to the joint. A frame is provided on the outside of one side of the exhaust nozzle, and a temperature sensor is fixedly installed in the middle of the frame.

[0012] Furthermore, the horizontal moving mechanism includes a guide rod, which is symmetrically arranged on both sides of the middle part of the lifting frame, and guide sleeves movably connected to the guide rods are arranged on the outside of both sides of the fixed frame, and a motor is arranged on the outside of the bottom end of the guide sleeve, and a gear is fixedly installed on the output shaft end of the motor, and racks meshing with the gear are arranged on both sides of the fixed frame.

[0013] Furthermore, the temperature sensor is electrically connected to the motor.

[0014] Furthermore, the opening and closing mechanism includes a fixed sleeve, a plurality of fixed sleeves are arranged side by side at the middle upper end of the base frame, a joint 2 is movably arranged inside the fixed sleeve, a spring movably connected to the base frame is arranged at the bottom upper end of the joint 2, air holes 2 are arranged at both ends of the bottom of the fixed sleeve, and an air hole 1 matching the air hole 2 is arranged at the top of the joint 2.

[0015] Furthermore, the installation mechanism includes a bellows, which is arranged between the second connector and the first connector, and a magnetic ring 1 is arranged inside both ends of the bellows, and a magnetic ring 2 with opposite magnetic properties to the magnetic ring 1 is arranged at one end of the first connector and the second connector close to the bellows.

[0016] Furthermore, the tension generated by the spring in the stretched state is F1, the tension inside the bellows in the static state is F2, and F1 is smaller than F2.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is working, as the stove is turned on, the temperature sensor located on the side of the exhaust nozzle directly above the stove will detect the temperature. If other stoves are not turned on, the motors above other stoves will be turned on, and the motor drives the gear to rotate, and the gear moves to one side along the rack, thereby driving the guide sleeve to move synchronously. After the guide sleeve moves, it drives the fixed frame to move synchronously. When the fixed frame moves, the bellows installed between the joint 1 and the joint 2 stretches and stretches, so that the exhaust nozzles at other positions will move together to the top of the stove and extract the oil smoke through the exhaust fan body.

[0019] 2. When the bellows needs to be replaced, the two ends of the bellows are removed from joint 1 and joint 2 respectively, and a new bellows is replaced. When placing the new bellows, pull down joint 2, and fix the bellows to joint 1 and joint 2. When fixing, magnetic adsorption is performed by magnetic rings 1 and 2. Since F1 is smaller than F2, joint 2 is in a pulled-down state. Thus, after joint 2 is lowered, pore 1 is connected with pore 2. If no bellows is provided between joint 1 and joint 2, joint 2 is in a lifted state after being stretched by the spring. At this time, pore 1 is not connected with pore 2. Therefore, when the bellows is not installed, the exhaust port at this position is in a closed state. Thus, when some stoves are not in use, the bellows can be directly removed. Thus, the exhaust port at this position stops being used, and the wind force can be concentrated at other positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a kitchen range hood according to the present invention;

[0021] Figure 2 It is a schematic overall cross-sectional view of a kitchen range hood according to the present invention;

[0022] Figure 3 It is a top view schematic diagram of a lifting frame of a kitchen range hood according to the present invention;

[0023] Figure 4 A kitchen range hood according to the present invention Figure 1 An enlarged schematic diagram of A in FIG.

[0024] Figure 5 A kitchen range hood according to the present invention Figure 2 An enlarged schematic diagram of point B in FIG.

[0025] Figure 6 A kitchen range hood according to the present invention Figure 3 An enlarged schematic diagram of point C in FIG.

[0026] In the figure: 1. range hood body; 2. exhaust fan body; 3. base frame; 4. lifting frame; 5. fixing frame; 6. joint one; 7. mounting base; 8. electric push rod; 9. hanger; 10. exhaust nozzle; 11. frame; 12. temperature sensor; 13. guide rod; 14. guide sleeve; 15. motor; 16. gear; 17. rack; 18. fixing sleeve; 19. joint two; 20. spring; 21. air hole two; 22. air hole one; 23. bellows; 24. magnetic ring one; 25. magnetic ring two. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-6 As shown, the present invention provides a technical solution:

[0029] A kitchen range hood comprises a range hood body 1, an exhaust fan body 2 is arranged inside the upper end of the range hood body 1, a base frame 3 is arranged below the range hood body 1, and lifting mechanisms are arranged outside the two sides of the range hood body 1, the lifting mechanism comprises a mounting seat 7, an electric push rod 8 is fixedly installed on the top of the mounting seat 7, hangers 9 are arranged on both sides of the top of the lifting frame 4, the output shaft of the electric push rod 8 is fixedly connected to the hanger 9, a plurality of opening and closing mechanisms are arranged side by side in the middle of the base frame 3, the opening and closing mechanisms comprise a fixed sleeve 18, a plurality of fixed sleeves 18 are arranged side by side at the middle upper end of the base frame 3, a joint 2 19 is movably arranged inside the fixed sleeve 18, and a joint 2 19 is movably connected to the base frame 3 at the bottom upper end thereof. The spring 20 connected to the fixing sleeve 18 is provided with air holes 21 at both ends of the bottom, and an air hole 22 matching the air hole 21 is provided at the top of the joint 2 19. The tension generated by the spring 20 in the stretched state is F1, and the tension inside the bellows 23 in the static state is F2, and F1 is less than F2. A joint 6 is provided at the top of the fixing frame 5, and a mounting mechanism is provided between the joint 6 and the opening and closing mechanism. The mounting mechanism includes a bellows 23, and the bellows 23 is provided between the joint 2 19 and the joint 6. A magnetic ring 24 is provided inside both ends of the bellows 23, and a magnetic ring 25 with a magnetic opposite to the magnetic ring 24 is provided at one end of the joint 6 and the joint 2 19 close to the bellows 23.

[0030] In this embodiment, during operation, as the stove is turned on, the temperature sensor 12 located on the side of the exhaust nozzle 10 directly above the stove will detect the temperature. If other stoves are not turned on, the motors 15 above the other stoves will be turned on, and the motor 15 drives the gear 16 to rotate, and the gear 16 moves to one side along the rack 17, thereby driving the guide sleeve 14 to move synchronously. After the guide sleeve 14 moves, it drives the fixing frame 5 to move synchronously. When the fixing frame 5 moves, the bellows 23 installed between the joint 1 6 and the joint 2 19 stretches and stretches, so that the exhaust nozzles 10 at other positions will move together to the top of the stove and extract the oil smoke through the exhaust fan body 2.

[0031] like Figure 2 and Figure 5As shown, a lifting frame 4 is movably installed just below the bottom end of the range hood body 1, and a plurality of fixed frames 5 are arranged side by side in the middle of the lifting frame 4. A horizontal moving mechanism is arranged on both sides of the lifting frame 4 and the fixed frame 5, and the horizontal moving mechanism includes a guide rod 13. The guide rods 13 are symmetrically arranged on both sides of the middle part of the lifting frame 4, and guide sleeves 14 movably connected to the guide rods 13 are arranged on the outside of both sides of the fixed frame 5. A motor 15 is arranged on the outside of the bottom end of the guide sleeve 14, and a gear 16 is fixedly installed on the output shaft end of the motor 15. Racks 17 meshing with the gear 16 are arranged on both sides of the fixed frame 5. An exhaust mechanism is further arranged at the bottom end of the fixed frame 5, and the exhaust mechanism includes an exhaust nozzle 10, which is connected to the joint 16. A frame 11 is arranged on the outside of one side of the exhaust nozzle 10, and a temperature sensor 12 is fixedly installed in the middle of the frame 11, and the temperature sensor 12 is electrically connected to the motor 15.

[0032] In this embodiment, when the bellows 23 needs to be replaced, the two ends of the bellows 23 are removed from the joint 1 6 and the joint 2 19 respectively, and a new bellows 23 is replaced. When placing the new bellows 23, the joint 2 19 is pulled down, and the bellows 23 is fixed to the joint 1 6 and the joint 2 19. When fixed, it is magnetically adsorbed by the magnetic ring 1 24 and the magnetic ring 2 25. Since F1 is smaller than F2, the joint 2 19 is in a pulled-down state. In this way, after the joint 2 19 is lowered, the air hole 1 22 is connected with the air hole 2 21. If the bellows 23 is not provided between the joint 1 6 and the joint 2 19, the joint 2 19 is in a lifted state after being stretched by the spring 20. At this time, the air hole 1 22 is not connected with the air hole 2 21. Therefore, when the bellows 23 is not installed, the exhaust port at this position is in a closed state. In this way, when some stoves are not in use, the bellows 23 can be directly removed, so that the exhaust port at this position is stopped from being used, and the wind force can be concentrated at other positions.

[0033] Working principle: When working, as the stove is turned on, the temperature sensor 12 on the side of the exhaust nozzle 10 directly above the stove will detect the temperature. If other stoves are not turned on, the motors 15 above the other stoves will be turned on, and the motor 15 drives the gear 16 to rotate, and the gear 16 moves to one side along the rack 17, thereby driving the guide sleeve 14 to move synchronously. After the guide sleeve 14 moves, it drives the fixing frame 5 to move synchronously. When the fixing frame 5 moves, the bellows 23 installed between the joint 1 6 and the joint 2 19 stretches and stretches, so that the exhaust nozzles 10 at other positions will move collectively to the top of the stove and extract the oil smoke through the exhaust fan body 2; when the bellows 23 needs to be replaced, separate the two ends of the bellows 23 Do not remove it from connector 1 6 and connector 2 19, and replace it with a new bellows 23. When placing the new bellows 23, pull down connector 2 19 and fix the bellows 23 to connector 1 6 and connector 2 19. When fixing, it is magnetically adsorbed by magnetic ring 1 24 and magnetic ring 2 25. Since F1 is smaller than F2, connector 2 19 is in a pulled-down state. In this way, after connector 2 19 is lowered, pore 1 22 is connected with pore 2 21. If bellows 23 is not provided between connector 1 6 and connector 2 19, connector 2 19 is in a lifted state after being stretched by spring 20. At this time, pore 1 22 is not connected with pore 2 21. Therefore, when bellows 23 is not installed, the air outlet at this position is in a closed state.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A kitchen range hood, characterized in that: include A range hood body (1), wherein an exhaust fan body (2) is arranged inside the upper end of the range hood body (1), a base frame (3) is arranged below the range hood body (1), and a plurality of opening and closing mechanisms are arranged side by side in the middle of the base frame (3); A lifting frame (4) is movably installed directly below the bottom end of the range hood body (1), a plurality of fixed frames (5) are arranged side by side in the middle of the lifting frame (4), and horizontal movement mechanisms are arranged on both sides of the lifting frame (4) and the fixed frames (5); A joint (6) is provided at the top end of the fixing frame (5), and a mounting mechanism is provided between the joint (6) and the opening and closing mechanism.

2. A kitchen range hood according to claim 1, characterized in that: A lifting mechanism is also provided on the outside of both sides of the range hood body (1), and the lifting mechanism includes a mounting seat (7), an electric push rod (8) is fixedly installed on the top of the mounting seat (7), and hangers (9) are provided on both sides of the top of the lifting frame (4), and the output shaft of the electric push rod (8) is fixedly connected to the hanger (9).

3. A kitchen range hood according to claim 1, characterized in that: The bottom end of the fixed frame (5) is further provided with an exhaust mechanism, the exhaust mechanism comprising an exhaust nozzle (10), the exhaust nozzle (10) is connected to the joint 1 (6), a frame (11) is provided outside one side of the exhaust nozzle (10), and a temperature sensor (12) is fixedly installed in the middle of the frame (11).

4. A kitchen range hood according to claim 2, characterized in that: The horizontal moving mechanism comprises a guide rod (13), the guide rods (13) are symmetrically arranged on both sides of the middle part of the lifting frame (4), guide sleeves (14) movably connected to the guide rods (13) are arranged on the outside of both sides of the fixed frame (5), a motor (15) is arranged on the outside of the bottom end of the guide sleeve (14), a gear (16) is fixedly installed on the output shaft end of the motor (15), and racks (17) meshing with the gear (16) are arranged on both sides of the fixed frame (5).

5. The kitchen range hood according to claim 3, characterized in that: The temperature sensor (12) is electrically connected to the motor (15).

6. A kitchen range hood according to claim 1, characterized in that: The opening and closing mechanism comprises a fixing sleeve (18), a plurality of fixing sleeves (18) are arranged side by side at the middle upper end of the base frame (3), a second joint (19) is movably arranged inside the fixing sleeve (18), a spring (20) movably connected to the base frame (3) is arranged at the bottom upper end of the second joint (19), two air holes (21) are arranged at both ends of the bottom of the fixing sleeve (18), and a first air hole (22) matching the second air hole (21) is arranged at the top end of the second joint (19).

7. A kitchen range hood according to claim 6, characterized in that: The installation mechanism comprises a bellows (23), the bellows (23) being arranged between the second joint (19) and the first joint (6), a magnetic ring (24) being arranged inside both ends of the bellows (23), and a magnetic ring (25) having a magnetic property opposite to that of the first magnetic ring (24) being arranged at both ends of the first joint (6) and the second joint (19) close to the bellows (23).

8. A kitchen range hood according to claim 7, characterized in that: The tension generated by the spring (20) in a stretched state is F1, the tension inside the bellows (23) in a static state is F2, and F1 is smaller than F2.

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