Range hood capable of transversely feeding

Abstract

The utility model provides a range hood capable of transversely feeding, which is characterized in that a transverse driving mechanism is fixedly connected with a machine body; the transverse driving mechanism comprises a rack, a gear assembly and a driving part; the rack is transversely arranged; the gear assembly is meshed with the rack; the driving part is connected with the gear assembly, and the driving part is used for driving the gear assembly. In the embodiment of the invention, the driving part drives the gear assembly to rotate, and the transverse feeding of the gear assembly is realized through the meshing between the gear assembly and the transversely arranged rack, so that the range hood body is driven to move transversely; according to the range hood, the range hood can be moved to the position above the stove module, needing to be subjected to smoke exhaust, in the two or more stove modules along the wall face of a kitchen, and the smoke exhaust requirement of each stove module in the two or more stove modules is met.

Description

Technical Field

[0001] The utility model relates to the technical field of household kitchenware, in particular to a range hood capable of horizontal feeding. Background Art

[0002] With the development of economy and the improvement of people's living standards, range hoods have become a must-have household appliance in the kitchen. As a kitchen appliance that purifies the kitchen environment, range hoods can quickly extract the waste from stove combustion and the oil smoke generated during cooking that is harmful to the human body and discharge it outdoors, thereby reducing pollution and purifying indoor air.

[0003] The range hood is often installed directly above the stove module. One common range hood is connected to the wall or mounting plate by bolting or welding. The relative position of the range hood and the wall or mounting plate is fixed and cannot be moved laterally. Therefore, in the use scenario where two or more stove modules are arranged side by side along the kitchen wall or along the mounting plate, this range hood can only be fixed above one of the stove modules, and cannot meet the use requirements of each of the two or more stove modules. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model discloses a range hood with horizontal feeding, which can improve the technical problem in the existing technical solution that the range hood can only be fixed above one of the stove modules and cannot meet the usage requirements of each stove module in two or more stove modules.

[0005] In order to achieve the above-mentioned utility model object, the embodiment of the utility model provides a range hood capable of transverse feeding, the range hood comprising a transverse driving mechanism and a body;

[0006] The transverse driving mechanism is fixedly connected to the machine body;

[0007] The transverse driving mechanism comprises a rack, a gear assembly and a driving part; the rack is arranged transversely; the gear assembly and the rack are meshed; the driving part and the gear assembly are connected, and the driving part is used to drive the gear assembly.

[0008] In one possible embodiment, the lateral drive mechanism includes a gear box;

[0009] The gear box is used to accommodate the gear assembly; the gear box includes a limiting hole for penetrating the rack;

[0010] The gear box is fixedly connected to the driving part and is also fixedly connected to the machine body.

[0011] In a possible embodiment, the driving unit includes a driving motor; the driving motor includes an output shaft;

[0012] The gear assembly includes a driving gear, a transmission gear assembly and a feed gear assembly; the driving gear is coaxially arranged with the output shaft and is fixedly connected with the output shaft;

[0013] The driving gear is meshed with the transmission gear assembly, the transmission gear assembly is meshed with the feed gear assembly, and the feed gear assembly is meshed with the rack.

[0014] In a possible embodiment, the transmission gear assembly includes a first shaft system and a second shaft system;

[0015] The first shaft system includes a first transmission gear and a first support shaft, the first transmission gear is sleeved on the first support shaft; both ends of the first support shaft are movably connected to the gear box;

[0016] The second shaft system includes a second transmission gear, a third transmission gear and a second support shaft, the second transmission gear and the third transmission gear are sleeved on the second support shaft; both ends of the second support shaft are movably connected to the gear box; the second support shaft is fixedly connected to the second transmission gear and fixedly connected to the third transmission gear;

[0017] The driving gear is meshed with the first transmission gear, and the first transmission gear is meshed with the second transmission gear.

[0018] In a possible embodiment, both ends of the first support shaft are provided with first bearings, and the first support shaft is movably connected to the gear box through the first bearings;

[0019] Second bearings are provided at both ends of the second support shaft, and the second support shaft is movably connected to the gear box via the second bearings.

[0020] In a possible embodiment, the feed gear assembly includes a feed gear and a third support shaft;

[0021] The feed gear is sleeved on the third support shaft, and both ends of the third support shaft are movably connected to the gear box;

[0022] The feed gear is meshed with the third transmission gear and is also meshed with the rack.

[0023] In a possible embodiment, the rack includes uniformly arranged tooth groups, and the tooth groups are arranged downward;

[0024] The gear assembly meshes with the rack through the tooth set.

[0025] In a possible embodiment, the lateral drive mechanism includes at least one support assembly;

[0026] The support assembly includes a horizontally arranged slide rail and at least one sliding block; the slide rail is parallel to the rack;

[0027] The slide block is slidably connected to the slide rail and is fixedly connected to the gear box.

[0028] In a possible embodiment, the gear box includes at least one connecting member; the machine body is fixedly connected to the gear box via the connecting member.

[0029] In a possible embodiment, the body includes at least one anti-collision component;

[0030] The anti-collision component comprises an anti-collision roller and a roller bracket; the roller bracket comprises a limiting part, and the anti-collision roller is movably connected to the roller bracket through the limiting part.

[0031] The technical solution provided by the embodiment of the present application has the following technical effects:

[0032] The utility model provides a range hood capable of transverse feeding, characterized in that it comprises a transverse driving mechanism and a body; the transverse driving mechanism is fixedly connected to the body; the transverse driving mechanism comprises a rack, a gear assembly and a driving part; the rack is arranged transversely; the gear assembly is meshed with the rack; the driving part is connected with the gear assembly, and the driving part is used to drive the gear assembly. In an embodiment of the present application, the gear assembly is driven to rotate by the driving part, and the transverse feeding of the gear assembly is achieved by the meshing between the gear assembly and the transversely arranged rack, thereby driving the range hood body to move transversely, so that the range hood can be moved along the kitchen wall to the top of the stove module that needs to be exhausted among two or more stove modules, so as to meet the exhaust requirements of each stove module among the two or more stove modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 is a schematic diagram of a range hood capable of transverse feeding provided in an embodiment of the present application;

[0035] Figure 2 Schematic diagram of a transverse drive assembly of a range hood capable of transverse feeding provided in an embodiment of the present application Figure 1 ;

[0036] Figure 3 is an exploded schematic diagram of a transverse drive assembly of a range hood capable of transverse feeding provided in an embodiment of the present application;

[0037] Figure 4 Schematic diagram of a transverse driving mechanism of a range hood capable of transverse feeding provided in an embodiment of the present application Figure 2 ;

[0038] Figure 5 It is a schematic diagram of the rear side of a body of a range hood capable of transverse feeding provided in an embodiment of the present application;

[0039] Among them, Figure 1-Figure 5 As shown in the figure, 1 is a horizontal driving mechanism, 11 is a rack, 111 is a gear set, 112 is a positioning part, 12 is a driving part, 13 is a gear box, 131 is a limiting hole, 132 is a connecting piece, 133 is a slide plate, 14 is a supporting assembly, 141 is a slide rail, 142 is a slider, 15 is a gear assembly, 151 is a driving gear, 152 is a transmission gear assembly, 1521 is a first transmission gear, 1522 is a first supporting shaft, 1523 is a second transmission gear, 1524 is a third transmission gear, 1525 is a second support shaft, 1526 is a first bearing, 1527 is a second bearing, 153 is a feed gear assembly, 1531 is a feed gear, 1532 is a third support shaft, 1533 is a third bearing, 2 is a body, 21 is an anti-collision assembly, 211 is an anti-collision roller, and 212 is a roller bracket. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] It should be noted that the "one embodiment" or "embodiment" referred to in the specification of the embodiment of the present application refers to a specific feature, structure or characteristic that can be included in at least one implementation of the present application. It should be understood that in the specification and claims of the embodiment of the present application and the above-mentioned drawings, the orientation or position relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, in the description of the present embodiment, unless otherwise specified, "plurality" means two or more. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system or product including a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] It should be understood that when a device or component is referred to as "on ...", "adjacent to ...", "connected to" other devices or components, it can be directly on, adjacent to, connected to other devices or components, or there can be intervening devices or components. On the contrary, when a device or component is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" other devices or components, there is no intervening device or component. It should be understood that although the terms first, second, third, etc. can be used to describe various components, areas, layers and / or parts, these components, areas, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one component, area, layer or part from another component, area, layer or part. Therefore, without departing from the teachings of the present application, the first component, area, layer or part discussed below can be expressed as the second component, area, layer or part. And when the second component, area, layer or part is discussed, it does not mean that the present application necessarily has the first component, area, layer or part.

[0043] In order to make the purpose, technical solution and advantages disclosed in the embodiments of the present application more clearly understood, the embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present application and are not used to limit the embodiments of the present application.

[0044] See also Figure 1 , Figure 1 is a schematic diagram of a range hood capable of horizontal feeding provided in an embodiment of the present application, such as Figure 1 As shown, the present application provides a range hood capable of transverse feeding, which includes a transverse driving mechanism 1 and a body 2. The transverse driving mechanism 1 and the body 2 are fixedly connected. In a possible embodiment, the transverse driving mechanism 1 may include a rack 11, a gear assembly and a driving unit 12. Specifically, the rack 11 may be arranged transversely, the rack 11 may be fixedly connected to a wall, and the gear assembly may mesh with the rack 11. The driving unit 12 may be connected to the gear assembly, and the driving unit 12 may be used to drive the gear assembly. Optionally, the driving unit 12 may include a motor, the motor may include an output shaft, the gear assembly may include a gear, the output shaft may be fixedly connected to the gear, and when the motor is started, the output shaft of the motor rotates to drive the gear to rotate.

[0045] In a possible embodiment, the transverse drive mechanism 1 may include a gear box 13, the gear assembly may be disposed in the gear box 13, the drive unit 12 may be fixedly connected to the gear box 13, and the gear box 13 may provide certain support for the drive unit 12 and the gear assembly.

[0046] In a possible embodiment, the gear box 13 is fixedly connected to the driving unit 12 and to the body 2. The gear box 13 provides support for the driving unit 12 and the body 2. In the embodiment summary of the present application, the driving unit 12 can drive the gear assembly to rotate, and the gear assembly can be meshed with the laterally arranged rack 11 to achieve lateral feeding of the gear assembly, thereby driving the body 2 to move laterally, so that the body 2 can be moved along the kitchen wall to the top of the stove module that needs to be vented among the two or more stove modules, thereby meeting the venting requirements of each of the two or more stove modules.

[0047] See also Figure 2 , Figure 2 Schematic diagram of a transverse drive assembly of a range hood capable of transverse feeding provided in an embodiment of the present application Figure 1 For the convenience of display, Figure 2 The front cover of the drive unit and gear box is hidden. Figure 2As shown, the transverse drive mechanism 1 may include a gear box 13, the gear assembly may be arranged inside the gear box 13, and the rack 11 may be inserted inside the gear box 13. Specifically, the gear box 13 may include a limiting hole 131, and the rack 11 may be inserted inside the gear box 13 through the limiting hole 131. The gear box 13 may include two limiting holes 131, and the rack 11 may be inserted inside the gear box 13 through the two limiting holes 131. The gear box 13 may provide support for the gear assembly inside the gear box 13, and the gear box 13 may provide protection for the gear assembly inside the gear box 13 to prevent external impurities from entering the interior of the gear box 13 and jamming the gear assembly.

[0048] In a possible embodiment, in order to prevent the upper edge of the rack 11 from contacting the gear box 13 so that the rack 11 needs to bear part of the gravity of the gear box 13, a certain preset gap may be left between the upper edge of the rack 11 and the upper edge of the limiting hole 131. Optionally, the preset gap may be 5 mm.

[0049] In a possible embodiment, in order to support the gear box 13 and the gear assembly inside the gear box 13, the transverse drive mechanism 1 may include at least one support assembly 14. Optionally, the support assembly 14 may include a transversely arranged slide rail 141 and at least one slider 142, the position of the slide rail 141 may correspond to the position of the rack 11, and the length of the slide rail 141 may correspond to the length of the rack 11. The slide rail 141 may be arranged in parallel directly below the rack 11, and the length of the slide rail 141 may be equal to the length of the rack 11. The slider 142 may be slidably connected to the slide rail 141 and fixedly connected to the gear box 13, so as to support the gear box 13 and the gear assembly inside the gear box 13.

[0050] In a possible embodiment, the driving part 12 may include a driving motor, and the driving motor may include an output shaft. When the motor is started, the output shaft rotates as the output end of the driving motor. The transverse driving mechanism 1 may include a gear assembly 15, and the gear assembly 15 includes a driving gear 151, a transmission gear assembly 152, and a feed gear assembly 153. The driving gear 151 may be coaxially arranged with the output shaft and fixedly connected to the output shaft. When the output shaft rotates, the driving gear 151 may rotate synchronously with the output shaft. The driving gear 151 may mesh with the transmission gear assembly 152, the transmission gear assembly 152 may mesh with the feed gear assembly 153, and the feed gear assembly 153 may mesh with the rack 11.

[0051] Specifically, the driving gear 151 can mesh with the gear included in the transmission gear assembly 152, the gear included in the transmission gear assembly 152 can mesh with the gear included in the feed gear assembly 153, and the assembly included in the feed gear assembly 153 can mesh with the rack 11. In this embodiment, the driving motor rotates, thereby driving the driving gear 151 connected to the output shaft of the driving motor to rotate, thereby driving the transmission gear assembly 152 meshed with the driving gear 151 to rotate, and then driving the feed gear assembly 153 meshed with the transmission gear assembly 152 to rotate, and finally causing the feed gear assembly 153 to feed laterally along the rack 11 arranged laterally.

[0052] See also Figure 3 , Figure 3 FIG. 1 is an exploded schematic diagram of a transverse drive assembly of a range hood capable of transverse feeding provided in an embodiment of the present application. For the convenience of display, Figure 3 The front cover of the range hood body, drive unit and gear box is hidden in the middle. Figure 3 As shown, in a possible embodiment, the transmission gear assembly 152 may include a first shaft system and a second shaft system, the first shaft system may include a first transmission gear 1521 and a first support shaft 1522, the first transmission gear 1521 may be sleeved on the first support shaft 1522, the first transmission gear 1521 and the first support shaft 1522 may be fixedly connected by interference fit, and optionally, the first transmission gear 1521 and the first support shaft 1522 may be integrally formed. Both ends of the first support shaft 1522 may be movably connected to the gear box 13.

[0053] Optionally, the second shaft system may include a second transmission gear 1523, a third transmission gear 1524, and a second support shaft 1525. The second transmission gear 1523 and the third transmission gear 1524 may be sleeved on the second support shaft 1525. The second transmission gear 1523, the third transmission gear 1524, and the second support shaft 1525 may be fixedly connected by interference fit. The second transmission gear 1523, the third transmission gear 1524, and the second support shaft 1525 may be integrally formed. Both ends of the second support shaft 1525 may be movably connected to the gear box 13.

[0054] Optionally, the driving gear 151 may be meshed with the first transmission gear 1521, and the first transmission gear 1521 may be meshed with the second transmission gear 1523. In this embodiment, when the driving gear 151 rotates, the driving gear 151 drives the first transmission gear 1521 to rotate, and then drives the second transmission gear 1523 meshed with the first transmission gear 1521 to rotate, thereby driving the third transmission gear 1524 fixedly connected to the second transmission gear 1523 and the second support shaft 1525 to rotate.

[0055] In a possible embodiment, the feed gear assembly 153 may include a feed gear 1531 and a third support shaft 1532; the feed gear 1531 is sleeved on the third support shaft 1532, the feed gear 1531 and the third support shaft 1532 can be fixedly connected by interference fit, the feed gear 1531 and the third support shaft 1532 can be integrally formed, and both ends of the third support shaft 1532 are movably connected to the gear box 13.

[0056] In a possible embodiment, the feed gear 1531 may be meshed with the third transmission gear 1524 and meshed with the rack 11. In this embodiment, when the third transmission gear 1524 rotates, the third transmission gear 1524 drives the feed gear 1531 to rotate, thereby driving the feed gear 1531 to feed laterally along the rack 11, that is, driving the gear box 13 and the body 2 connected to the feed gear to feed laterally along the rack 11.

[0057] The first support shaft 1522 may be provided with a first bearing 1526 at both ends, and the first support shaft 1522 may be movably connected to the gear box 13 through the first bearing 1526. The second support shaft 1525 may be provided with a second bearing 1527 at both ends, and the second support shaft 1525 may be movably connected to the gear box 13 through the second bearing 1527. The third support shaft 1532 may be provided with a third bearing 1533 at both ends, and the third support shaft 1532 may be movably connected to the gear box 13 through the third bearing 1533. The gear box 13 provides a limiting support function for the first support shaft 1522, the second support shaft 1525 and the third support shaft 1532 through the first bearing 1526, the second bearing 1527 and the third bearing 1533, and is movably connected to the first support shaft 1522, the second support shaft 1525 and the third support shaft 1532.

[0058] In a possible embodiment, the rack 11 includes a uniformly arranged tooth set 111, the tooth set 111 is arranged downward, and the gear assembly 15 is meshed with the rack 11 through the tooth set 111. Optionally, the feed gear 1531 is meshed with the rack 11. In order to prevent the rack 11 from being located below the gear assembly 15 during the cooperation process with the feed gear 1531, so that the rack 11 inevitably bears a part of the gravity of the gear assembly 15, the tooth set 111 can be arranged downward, the feed gear 1531 can be located below the rack 11, and during the movement, the upper edge of the feed gear 1531 is meshed with the tooth set 111.

[0059] Optionally, the rack 11 may further include a positioning portion 112, and the positioning portion 112 may be fixedly connected to the wall by welding, bolting, etc. The body of the rack may be fixed to the wall by the positioning portion 112. Specifically, the body of the rack may be fixedly connected to the positioning portion 112 by bolting, snap-fitting, welding, etc., so as to achieve fixation between the rack 11 and the wall.

[0060] See also Figure 4 , Figure 4 Schematic diagram of a transverse driving mechanism of a range hood capable of transverse feeding provided in an embodiment of the present application Figure 2 .like Figure 4 As shown, in a possible embodiment, the gear box 13 includes at least one connecting member 132, and the body 2 is fixedly connected to the gear box 13 through the connecting member 132. Optionally, the gear box 13 includes two connecting members 132, and the body 2 is fixedly connected to the gear box 13 through the two connecting members 132. The gear box 13 may include a slide plate 133, and the slide plate 133 may be fixed to other components of the gear box 13, and the slider 142 may be fixedly connected to the gear box 13 through the slide plate 133. In order to disperse the force on the gear box 13, the connecting member 132 may be arranged on the slide plate 133, and the position of the connecting member 132 may correspond to the position of the slider 142. In this embodiment, the gravity of the body 2 can be distributed by arranging a plurality of connecting members 132, thereby reducing the load of a single connecting member 132 and preventing the structure from excessive wear and deformation.

[0061] See also Figure 5 , Figure 5 1 is a schematic diagram of the rear side of a range hood body capable of horizontal feeding provided in an embodiment of the present application. Figure 5 As shown, the body 2 may include at least one anti-collision component 21, and the anti-collision component 21 includes an anti-collision roller 211 and a roller bracket 212. The roller bracket 212 may include a limiting portion, and the anti-collision roller 211 may be movably connected to the roller bracket 212 through the limiting portion. Optionally, the limiting portion may include two coaxially arranged limiting holes, and the anti-collision roller 211 may include two coaxially arranged small cylinders, and the anti-collision roller 211 may be movably connected to the rolling bracket 212 by arranging the two small cylinders in the two limiting holes. In this embodiment, during the feeding process of the transverse drive mechanism 1, the anti-collision roller 211 may contact the wall or the mounting plate, thereby preventing the body 2 from colliding with the wall or the mounting plate. Optionally, the body 2 includes two anti-collision components 21, and the body 2 prevents the body 2 from colliding with the wall or the mounting plate through the two anti-collision components 21.

[0062] It should be noted that the above-mentioned sequence of the embodiments of the present application is for description only and does not represent the advantages and disadvantages of the embodiments. The above-mentioned specific embodiments of this specification are described. Other embodiments are within the scope of the attached claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0063] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0064] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0065] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A range hood capable of transverse feeding, characterized in that: It includes a lateral drive mechanism and a body; The transverse driving mechanism is fixedly connected to the machine body; The transverse driving mechanism comprises a rack, a gear assembly and a driving part; the rack is arranged transversely; the gear assembly is meshed with the rack; the driving part is connected with the gear assembly, and the driving part is used to drive the gear assembly.

2. The range hood according to claim 1, characterized in that: The lateral drive mechanism includes a gear box; The gear box is used to accommodate the gear assembly; the gear box includes a limiting hole for penetrating the rack; The gear box is fixedly connected to the driving part and is also fixedly connected to the machine body.

3. The range hood according to claim 2, characterized in that: The driving unit includes a driving motor; the driving motor includes an output shaft; The gear assembly includes a driving gear, a transmission gear assembly and a feed gear assembly; the driving gear is coaxially arranged with the output shaft and is fixedly connected with the output shaft; The driving gear is meshed with the transmission gear assembly, the transmission gear assembly is meshed with the feed gear assembly, and the feed gear assembly is meshed with the rack.

4. The range hood according to claim 3, characterized in that: The transmission gear assembly includes a first shaft system and a second shaft system; The first shaft system includes a first transmission gear and a first support shaft, the first transmission gear is sleeved on the first support shaft; both ends of the first support shaft are movably connected to the gear box; The second shaft system includes a second transmission gear, a third transmission gear and a second support shaft, the second transmission gear and the third transmission gear are sleeved on the second support shaft; both ends of the second support shaft are movably connected to the gear box; the second support shaft is fixedly connected to the second transmission gear and to the third transmission gear; The driving gear is meshed with the first transmission gear, and the first transmission gear is meshed with the second transmission gear.

5. The range hood according to claim 4, characterized in that: Both ends of the first support shaft are provided with first bearings, and the first support shaft is movably connected to the gear box through the first bearings; Second bearings are provided at both ends of the second support shaft, and the second support shaft is movably connected to the gear box via the second bearings.

6. The range hood according to claim 4, characterized in that: The feed gear assembly includes a feed gear and a third support shaft; The feed gear is sleeved on the third support shaft, and both ends of the third support shaft are movably connected to the gear box; The feed gear is meshed with the third transmission gear and is also meshed with the rack.

7. The range hood according to claim 1, characterized in that: The rack includes uniformly arranged tooth groups, and the tooth groups are arranged downward; The gear assembly is meshed with the rack through the gear set.

8. The range hood according to claim 2, characterized in that: The lateral drive mechanism includes at least one support assembly; The support assembly comprises a horizontally arranged slide rail and at least one sliding block; the slide rail is parallel to the rack; The sliding block is slidably connected to the sliding rail and fixedly connected to the gear box.

9. The range hood according to claim 2, characterized in that: The gear box includes at least one connecting member; the machine body is fixedly connected to the gear box via the connecting member.

10. The range hood according to claim 1, characterized in that: The body includes at least one anti-collision component; The anti-collision component includes an anti-collision roller and a roller bracket; the roller bracket includes a limiting portion, and the anti-collision roller is movably connected to the roller bracket through the limiting portion.

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