A range hood

Abstract

This invention relates to the field of range hood technology, specifically a range hood comprising: a range hood housing; a glass panel; a first drive assembly, which is pulsatorically connected to the glass panel; a second drive assembly, including a connecting rod assembly and a drive element, which is fixedly connected to the glass panel; and a controller that controls the coordinated movement of the first and second drive assemblies to move the glass panel between a maximum closed position and a maximum extended position. When the glass panel is in the maximum closed position, the connecting rod assembly forms a triangular stabilizing structure to restrict the glass panel from moving towards the range hood housing. The drive element of this invention moves the glass panel from the maximum extended position towards the maximum closed position. Upon reaching the maximum closed position, the connecting rod assembly forms a triangular stabilizing structure, preventing the glass panel from continuing to move towards the range hood housing, thereby reducing the risk of the glass panel breaking due to stress and improving the safety of the range hood operation.

Description

Technical Field

[0001] This invention relates to the field of range hood technology, and in particular to a range hood. Background Technology

[0002] Range hoods are used to remove cooking fumes from the kitchen and improve the cooking environment for users. With the continuous development of technology, the appearance of range hoods has also changed significantly. Existing range hoods use glass panels. In order to improve the convenience of opening and closing the glass panel, an electric drive structure is used to drive the glass panel to open and close, while ensuring its aesthetic appearance. However, due to the error of electric control of the glass panel opening and closing, the glass panel may be overly close to the sheet metal parts on the casing when closed, causing stress on the glass panel and increasing the risk of the glass panel shattering.

[0003] Given the shortcomings of existing technologies, there is an urgent need to research a range hood to solve the above problems. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a range hood in which the connecting rod assembly forms a triangular, stable structure, preventing the glass panel from continuing to move towards the range hood casing, thereby avoiding stress on the glass panel, reducing the risk of the glass panel breaking due to stress, and improving the safety of the range hood's operation.

[0005] This invention provides a range hood, comprising: a range hood housing;

[0006] A glass panel installed on the casing of the range hood;

[0007] A first driving component, wherein the driving end of the first driving component is connected to the glass panel in a transmission manner;

[0008] The second drive assembly includes a linkage assembly and a drive member for driving the linkage assembly to move, wherein the linkage assembly is fixedly connected to the glass panel;

[0009] The controller controls the first drive component and the second drive component to move in coordination, so that the glass panel moves between a maximum closed position and a maximum extended position;

[0010] When the glass panel is in its ultimate closed position, the linkage assembly forms a triangular stabilizing structure to restrict the glass panel from moving toward the range hood housing. Furthermore, the first end of the linkage assembly is fixedly connected to the glass panel, and the second end of the linkage assembly is drively connected to the drive end of the drive component.

[0011] The linkage assembly has an extended state and a retracted state. In the extended state, the linkage assembly supports the glass panel in motion or at its maximum extended position. In the retracted state, the linkage assembly forms the triangular stabilizing structure.

[0012] Furthermore, the linkage assembly includes a first link, a second link, and a third link;

[0013] The first end of the first connecting rod is connected to the driving component for transmission, the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod, the second end of the second connecting rod is rotatably connected to the first end of the third connecting rod, and the second end of the third connecting rod is fixedly connected to the glass panel.

[0014] The driving component is used to drive the first link to move, which in turn drives the second link and the third link to move, so as to adjust the angle between the second link and the third link.

[0015] Furthermore, when the glass panel is in the ultimate closed position, the second link and the third link are on the same straight line, and the first link, the second link and the third link form a triangular stable structure.

[0016] Furthermore, the third link is arranged parallel to the surface of the glass panel.

[0017] Furthermore, the first end of the first connecting rod has a mounting hole adapted to the driving end of the driving member, the mounting hole being fitted onto the driving end of the driving member so that the driving end of the driving member engages with the first end of the first connecting rod.

[0018] Furthermore, the driving end of the first driving component is capable of telescopic movement to drive the glass panel to move between the ultimate closed position and the ultimate extended position.

[0019] Furthermore, the controller is used to acquire the preset extension speed of the first drive component and the preset rotation speed of the drive member, and control the first drive component to move at the preset extension speed and control the drive member to rotate at the preset rotation speed, so that the motion stroke applied to the glass panel by the first drive component is consistent with the motion stroke applied to the glass panel by the linkage assembly.

[0020] Furthermore, it also includes a fixing component disposed between the range hood housing and the glass panel, the fixing component being located at the upper end of the glass panel;

[0021] The first end of the fixing component is fixed to the range hood housing, and the second end of the fixing component is rotatably connected to the glass panel.

[0022] Furthermore, the angle between the first link and the vertical direction is 15-75°.

[0023] Implementing the embodiments of the present invention has the following beneficial effects: The present invention enables the glass panel to move between the ultimate closed position and the ultimate extended position by setting the first driving component and the second driving component to move in coordination; at the same time, by setting the connecting rod assembly and the driving member for driving the connecting rod assembly, the driving member drives the glass panel to move from the ultimate extended position to the ultimate closed position. When the ultimate closed position is reached, the connecting rod assembly forms a triangular stable structure, preventing the glass panel from continuing to move towards the range hood casing, thereby preventing the glass panel from being subjected to stress, reducing the risk of the glass panel being damaged by stress, and improving the safety of the range hood operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the present invention, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0025] Figure 1 is a structural diagram of the range hood described in this embodiment when unfolded;

[0026] Figure 2 is a structural diagram of the range hood in this embodiment when it is closed;

[0027] Figure 3 is a structural diagram of the range hood described in this embodiment.

[0028] The corresponding reference numerals in the figure are:

[0029] 1-Range hood housing; 2-Glass panel; 3-First drive assembly; 4-Second drive assembly; 5-Fixing assembly; 41-Linkage assembly; 42-Drive component; 411-First link; 412-Second link; 413-Third link. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that the terms "first," "advanced ... and "advanced" in the specification, claims, and accompanying drawings of this invention are used interchangeably.

[0032] The terms "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 such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0033] To address the shortcomings of existing technologies, this invention enables the glass panel to move between its extreme closed and extreme extended positions by setting a first driving component and a second driving component to move in tandem. Simultaneously, by setting a connecting rod assembly and a driving element for driving the connecting rod assembly, the driving element moves the glass panel from its extreme extended position towards its extreme closed position. Upon reaching the extreme closed position, the connecting rod assembly forms a triangular, stable structure, preventing the glass panel from continuing to move towards the range hood casing, thereby avoiding stress on the glass panel and reducing the risk of breakage due to stress, thus improving the safety of the range hood's operation.

[0034] Referring to Figures 1 to 3, this embodiment provides a range hood, including: a range hood housing 1; a glass panel 2 mounted on the range hood housing 1; a first drive assembly 3, the drive end of the first drive assembly 3 being pulsatorically connected to the glass panel 2; a second drive assembly 4, including a connecting rod assembly 41 and a drive member 42 for driving the connecting rod assembly 41 to move, the connecting rod assembly 41 being fixedly connected to the glass panel 2; and a controller that controls the first drive assembly 3 and the second drive assembly 4 to move in coordination, so that the glass panel 2 moves between a limit closed position and a limit extended position; when the glass panel 2 is in the limit closed position, the connecting rod assembly 41 forms a triangular stabilizing structure to restrict the glass panel 2 from moving toward the range hood housing 1.

[0035] It should be noted that: In this embodiment, by setting the first driving component 3 and the second driving component 4 to move in coordination, the glass panel 2 can move between the extreme closed position and the extreme extended position; at the same time, by setting the connecting rod assembly 41 and the driving member 42 for driving the connecting rod assembly 41, the driving member 42 drives the glass panel 2 to move from the extreme extended position to the extreme closed position. When the extreme closed position is reached, the connecting rod assembly 41 forms a triangular stable structure, preventing the glass panel 2 from continuing to move towards the range hood housing 1, thereby preventing the glass panel 2 from being subjected to stress, thus reducing the risk of the glass panel 2 being damaged by stress and improving the safety of the range hood operation.

[0036] It should also be noted that the triangular stabilizing structure of the linkage assembly 41 means that the linkages in the linkage assembly 41 form a triangular structure, and the two linkages in the linkage assembly 41 are located on the same straight line. At this time, the linkage assembly 41 is in a dead point position, and the linkage assembly 41 can restrict the glass panel 2 from moving toward the range hood housing 1, so as to avoid stress on the glass panel 2.

[0037] Specifically, when the linkage assembly 41 is at a dead position, it cannot continue to move under the drive of the drive component 42. However, with the cooperation of the first drive component 3, the linkage assembly 41 can continue to move, thereby improving the operational stability of the range hood.

[0038] In some possible embodiments, the range hood housing 1 is a housing with an opening at one end, and the glass panel 2 covers the opening.

[0039] In some possible embodiments, the first end of the linkage assembly 41 is fixedly connected to the glass panel 2, and the second end of the linkage assembly 41 is drively connected to the drive end of the drive member 42. The linkage assembly 41 has an extended state and a retracted state. In the extended state, the linkage assembly 41 supports the glass panel 2 in motion or at its extreme extended position. In the retracted state, the linkage assembly 41 forms a triangular stable structure. In the extended state, the linkage assembly 41 can support the glass panel 2, ensuring the stability of the glass panel 2 during operation. In the retracted state, the linkage assembly 41 cannot continue to move towards the side of the range hood housing 1, thereby ensuring that the glass panel 2, which is fixedly connected to it, cannot continue to move towards the side of the range hood housing 1, thus avoiding stress on the glass panel 2, reducing the risk of the glass panel 2 breaking due to stress, and improving the safety of the range hood operation.

[0040] Specifically, when the glass panel 2 is in the ultimate closed position, the linkage assembly 41 is in the dead position, that is, in the folded state; when the glass panel 2 is in the ultimate unfolded position, the linkage assembly 41 is in the unfolded state.

[0041] In some possible embodiments, the linkage assembly 41 includes a first link 411, a second link 412, and a third link 413. The first end of the first link 411 is tractively connected to the drive member 42, the second end of the first link 411 is rotatably connected to the first end of the second link 412, the second end of the second link 412 is rotatably connected to the first end of the third link 413, and the second end of the third link 413 is fixedly connected to the glass panel 2. The drive member 42 drives the first link 411 to move, thereby driving the second link 412 and the third link 413 to move, thereby adjusting the angle between the second link 412 and the third link 413. By adjusting the angle between the second link 412 and the third link 413, the angle between the second link 412 and the third link 413 can be gradually reduced to zero. Simultaneously, the first link 411, the second link 412, and the third link 413 form a triangular stable structure, thereby achieving stability of the glass panel 2. The structure is simple and easy to assemble, which can reduce assembly and usage costs.

[0042] Furthermore, a sheet metal connector is fixedly provided on the glass panel 2, and a first fixing hole is provided on the sheet metal connector. A second fixing hole is provided on the third connecting rod 413. The sheet metal connector and the third connecting rod 413 are fixedly connected by a connector adapted to the first mounting hole and the second mounting hole passing through the first fixing hole and the second fixing hole in sequence.

[0043] Specifically, the first fixing hole and the second fixing hole are provided in a one-to-one correspondence. The shape and size of the first fixing hole and the second fixing hole are not limited here, as long as the glass panel 2 and the third connecting rod 413 are fixedly connected.

[0044] Specifically, the first fixing hole is an elliptical hole, a long hole, or an irregularly shaped hole.

[0045] Optionally, both the first and second fixing holes are elongated holes, and the connector is a structure adapted to the elongated holes.

[0046] Furthermore, the first link 411, the second link 412, and the third link 413 are hinged together, and the rotation axes of the first link 411, the second link 412, and the third link 413 are arranged in parallel and parallel to the axis of the driving end of the driving member 42.

[0047] Specifically, the drive component 42 is a worm motor.

[0048] Specifically, the length of the first link 411 is greater than the sum of the lengths of the second link 412 and the third link 413; when the first link 411, the second link 412 and the third link 413 are in the folded state, the three links form a right triangle, with the first link 411 as the hypotenuse, and the second link 412 and the third link 413 located on the same straight line, forming one of the right-angle sides.

[0049] In some possible embodiments, when the glass panel 2 is in the ultimate closed position, the second link 412 and the third link 413 are on the same straight line, and the first link 411, the second link 412, and the third link 413 form a triangular stable structure. By setting the first link 411 and the third link 413 on the same straight line and forming a triangular stable structure with the link assembly 41, the link assembly 41 is in a dead point structure. This can prevent the link assembly 41 from continuing to move towards the range hood casing due to external forces, avoid stress on the glass panel 2, thereby reducing the risk of the glass panel 2 breaking due to stress and improving the safety of the range hood operation.

[0050] In some possible embodiments, the third link 413 is arranged parallel to the surface of the glass panel 2, which can ensure that the rotation state of the third link 413 directly displays the opening and closing state of the glass panel 2. At the same time, arranging the third link 413 parallel to the glass panel 2 can reduce the size of the link assembly 41 structure and avoid the overall structure being too large, which would increase costs.

[0051] Specifically, the third link 413 is connected to the glass panel 2 close to the fixed component 5, which can effectively shorten the length of each link in the link assembly 41, avoid the link length of each link in the link assembly 41 from being too long, which would make the link easy to be damaged, and thus improve the operational stability of the link assembly 41.

[0052] In some possible embodiments, the first end of the first link 411 has a mounting hole adapted to the driving end of the drive member 42. The mounting hole is fitted onto the driving end of the drive member 42 so that the driving end of the drive member 42 is engaged with the first end of the first link 411. By fixing the first link 411 to the driving end of the drive member 42, the first link 411 can move synchronously with the driving end, thereby achieving precise control of the switching of the link assembly 41 between the unfolded state and the folded state.

[0053] Furthermore, the shape and size of the mounting hole are not limited, as long as the first connecting rod 411 and the driving end of the driving member 42 can be fixedly connected.

[0054] Specifically, the shape of the mounting hole can be an elliptical hole, a long strip hole, an arc-shaped hole, a semi-circular hole, or an irregular hole, etc. The shape of the driving end is adapted to the shape of the mounting hole so as to achieve a fixed connection between the first end of the first connecting rod 411 and the driving end of the driving component 42. This connection structure is simple and can ensure installation strength while reducing installation costs.

[0055] Furthermore, the position where the first drive component 3 is fixedly connected to the glass panel 2 is close to the fixed component 5, which can effectively shorten the pushing distance of the first drive component 3, avoid the first drive component 3 being too long, and prevent the first drive component 3 from being easily damaged, thereby improving the operational stability of the first drive component 3.

[0056] In some possible embodiments, the driving end of the first driving component 3 can perform a telescopic movement to drive the glass panel 2 to move between the ultimate closed position and the ultimate extended position. When the glass panel 2 is in the ultimate closed position and the connecting rod assembly 41 is in the folded state, the first driving component 3 can push the glass panel 2 from the ultimate closed position to the ultimate extended position; this avoids the driving component 42 being unable to drive the connecting rod assembly 41 from the folded state to the extended state when the connecting rod assembly 41 is in the folded state, thereby improving the operational stability of the range hood.

[0057] It should be noted that when the link assembly 41 forms a triangular stable structure, the link assembly 41 is in a folded state.

[0058] In some possible embodiments, the controller is used to acquire the preset extension speed of the first drive component 3 and the preset rotation speed of the drive component 42, and control the first drive component 3 to move at the preset extension speed and control the drive component 42 to rotate at the preset rotation speed, so that the motion stroke applied by the first drive component 3 to the glass panel 2 is consistent with the motion stroke applied by the linkage component 41 to the glass panel 2. By setting the first drive component 3 and the second drive component 4 to move in coordination, the motion stroke applied by the first drive component 3 to the glass panel 2 is consistent with the motion stroke applied by the linkage component 41 to the glass panel 2, so that the glass panel 2 can move between the ultimate closed position and the ultimate extended position, thereby improving the stability of the glass panel 2 in the movement between the ultimate closed position and the ultimate extended position.

[0059] In some possible embodiments, the preset extension speed and preset rotation speed are determined based on the preset rotation angle range of the drive member 42 and the preset extension range of the first drive assembly 3, wherein the preset rotation angle range and the preset extension range are matched.

[0060] In some possible embodiments, a fixing component 5 is also included, which is disposed between the range hood housing 1 and the glass panel 2. The fixing component 5 is located at the upper end of the glass panel 2. The first end of the fixing component 5 is fixed to the range hood housing 1, and the second end of the fixing component 5 is rotatably connected to the glass panel 2. By setting the fixing component 5, the installation stability of the glass panel 2 can be improved.

[0061] In some possible embodiments, the angle between the first link 411 and the vertical direction is 15-75°. By setting the angle within the above range, it can be ensured that when the angle is at its maximum value, the glass panel 2 is in the optimal unfolded position; when the angle is at its minimum value, the glass panel 2 is in the optimal closed position. The smaller the angle between the first link 411 and the vertical direction, the longer the length of the corresponding first link 411. By setting the angle within the above range, it can be ensured that the length of the first link 411 is within a reasonable range, avoiding excessive force on the first link 411 due to its excessive length, which would easily damage the first link 411 and thus extend its service life.

[0062] Furthermore, the angle between the first link 411 and the vertical direction is 15-30°, 15-45°, or 15-50°.

[0063] 15-60°, 15-75°, 20-60°, 20-75°, 30-60°, 30-75°, 40-75° or 50-75°, etc.

[0064] Specifically, by presetting the initial position of the first link 411 and the rotation range of the drive member 42, the angle between the first link 411 and the vertical direction can be determined; wherein, the initial position of the first link 411 is defined as the position corresponding to the first link 411 when the link assembly 41 is in the dead position.

[0065] The movement process of the glass panel 2 of the range hood: When the glass panel 2 needs to be switched from the extreme extended position to the extreme closed position, the drive component 42 drives the connecting rod assembly 41 to move at a preset rotation speed, and the first drive component 3 moves at a preset extension speed simultaneously, until the connecting rod assembly 41 is in the folded state. At this time, the glass panel 2 is in the extreme closed position and cannot move towards the range hood housing 1. When the glass panel 2 needs to be switched from the extreme closed position to the extreme extended position, the first drive component 3 pushes the glass panel 2 to move at a preset extension speed, and the drive component 42 moves at a preset rotation speed simultaneously, until the connecting rod assembly 41 is in the extended state. At this time, the glass panel 2 is in the extreme extended position.

[0066] Example 1

[0067] Referring to Figures 1 to 3, this embodiment provides a range hood, which includes a range hood housing 1, a first drive assembly 3, a second drive assembly 4, and a glass panel 2 along the unfolding direction of the glass panel 2.

[0068] Specifically, the first end of the connecting rod assembly 41 is fixedly connected to the glass panel 2, and the second end of the connecting rod assembly 41 is connected to the driving end of the driving member 42; one end of the first driving assembly 3 is fixedly connected to the range hood housing 1, and the driving end of the first driving assembly 3 is fixedly connected to the glass panel.

[0069] Furthermore, the linkage assembly 41 includes a first link 411, a second link 412, and a third link 413; the first end of the first link 411 is connected to the drive member 42 for transmission, the second end of the first link 411 is rotatably connected to the first end of the second link 412, the second end of the second link 412 is rotatably connected to the first end of the third link 413, and the second end of the third link 413 is fixedly connected to the glass panel 2; the drive member 42 is used to drive the first link 411 to move, thereby driving the second link 412 and the third link 413 to move, so as to adjust the angle between the second link 412 and the third link 413.

[0070] Specifically, the third link 413 is arranged parallel to the surface of the glass panel 2.

[0071] Furthermore, a sheet metal connector is fixedly provided on the glass panel 2, and a first fixing hole is provided on the sheet metal connector. A second fixing hole is provided on the third connecting rod 413. The sheet metal connector and the third connecting rod 413 are fixedly connected by a connector adapted to the first mounting hole and the second mounting hole passing through the first fixing hole and the second fixing hole in sequence.

[0072] Optionally, both the first and second fixing holes are elongated holes, and the connector is a structure adapted to the elongated holes.

[0073] Furthermore, the first link 411, the second link 412, and the third link 413 are hinged together, and the rotation axes of the first link 411, the second link 412, and the third link 413 are arranged in parallel and parallel to the axis of the driving end of the driving member 42.

[0074] Specifically, the drive component 42 is a worm motor.

[0075] Specifically, the length of the first link 411 is greater than the sum of the lengths of the second link 412 and the third link 413; when the first link 411, the second link 412 and the third link 413 are in the folded state, the three links form a right triangle, with the first link 411 as the hypotenuse, and the second link 412 and the third link 413 located on the same straight line, forming one of the right-angle sides.

[0076] In some possible embodiments, the first end of the first link 411 has a mounting hole adapted to the driving end of the drive member 42, the mounting hole being fitted onto the driving end of the drive member 42 so that the driving end of the drive member 42 engages with the first end of the first link 411.

[0077] Optionally, the mounting hole can be a semi-circular hole, and the shape of the drive end can be adapted to the shape of the mounting hole to achieve a fixed connection between the first end of the first connecting rod 411 and the drive end of the drive component 42. This connection structure is simple and can ensure installation strength while reducing installation costs.

[0078] In some possible implementations, when the glass panel 2 is in its maximum extended position, the drive member 42 drives the linkage assembly 41 to be in the extended state, and the telescopic end of the first drive assembly 3 is at its maximum telescopic length.

[0079] In some possible implementations, when the glass panel 2 is in the ultimate closed position, the drive member 42 drives the linkage assembly in a folded state, and the telescopic end of the first drive assembly 3 is in the initial telescopic length.

[0080] Specifically, the linkage assembly 41 has an extended state and a retracted state. In the extended state, the linkage assembly 41 is used to support the glass panel 2 in motion or at its extreme extended position. In the retracted state, the linkage assembly 41 forms a triangular stable structure.

[0081] Furthermore, when the glass panel 2 switches from the extreme unfolded position to the extreme closed position, the angle between the first link 411 and the vertical direction gradually decreases, and the angle between the second link 412 and the third link 413 also gradually changes until the first link 411 and the third link 413 are on the same straight line.

[0082] Specifically, when the glass panel 2 is in the ultimate closed position, the linkage assembly 41 is in the dead position, that is, in the folded state; when the glass panel 2 is in the ultimate unfolded position, the linkage assembly 41 is in the unfolded state.

[0083] Furthermore, when the linkage assembly 41 is at its dead position, it cannot continue to move under the drive of the drive component 42. However, with the cooperation of the first drive component 3, the linkage assembly 41 can continue to move, thereby improving the operational stability of the range hood.

[0084] In some possible implementations, the range hood housing 1 is a housing with an opening at one end, and the glass panel 2 covers the opening.

[0085] In some possible implementations, the range hood further includes a fixing component 5 disposed between the range hood housing 1 and the glass panel 2, the fixing component 5 being located at the upper end of the glass panel 2; the first end of the fixing component 5 is fixed to the range hood housing 1, and the second end of the fixing component 5 is rotatably connected to the glass panel 2.

[0086] Specifically, when glass panel 2 switches from its fully extended position to its fully closed position, the glass panel...

[0087] 2. Move around the fixed component 5 and toward the opening end of the range hood housing 1 to cover its opening.

[0088] In some possible implementations, the controller is used to acquire the preset extension speed of the first drive assembly 3 and the preset rotation speed of the drive member 42, and control the first drive assembly 3 to move at the preset extension speed and control the drive member 42 to rotate at the preset rotation speed, so that the motion stroke applied by the first drive assembly 3 to the glass panel 2 is consistent with the motion stroke applied by the linkage assembly 41 to the glass panel 2. By setting the first drive assembly 3 and the second drive assembly 4 to move in coordination, the motion stroke applied by the first drive assembly 3 to the glass panel 2 is consistent with the motion stroke applied by the linkage assembly 41 to the glass panel 2, so that the glass panel 2 can move between the limit closed position and the limit extended position, thereby improving the stability of the glass panel 2 in the movement between the limit closed position and the limit extended position.

[0089] In some possible implementations, the preset extension speed and preset rotation speed are determined based on the preset rotation angle range of the drive member 42 and the preset extension range of the first drive assembly 3, wherein the preset rotation angle range and the preset extension range are matched.

[0090] While the present invention has been described through preferred embodiments, it is not limited to the embodiments described herein, and various changes and modifications are included without departing from the scope of the invention. In this document, directional terms such as front, back, top, and bottom are defined according to the positions of components in the accompanying drawings and between components, and are only used for clarity and convenience in expressing the technical solutions. It should be understood that the use of these directional terms should not limit the scope of protection claimed by the present invention.

[0091] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0092] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A range hood characterized by, include: Range hood casing (1); A glass panel (2) installed on the casing (1) of the range hood; The first driving component (3) is connected to the glass panel (2) by transmission at its driving end. The second drive assembly (4) includes a linkage assembly (41) and a drive member (42) for driving the linkage assembly (41) to move. The linkage assembly (41) is fixedly connected to the glass panel (2). The controller controls the first drive component (3) and the second drive component (4) to move together so that the glass panel (2) moves between the ultimate closed position and the ultimate extended position; When the glass panel (2) is in the ultimate closed position, the linkage assembly (41) forms a triangular stabilizing structure to restrict the glass panel (2) from moving toward the range hood housing (1); The linkage assembly (41) includes a first link (411), a second link (412), and a third link (413); The first end of the first connecting rod (411) is connected to the driving member (42) in a transmission connection. The second end of the first connecting rod (411) is rotatably connected to the first end of the second connecting rod (412). The second end of the second connecting rod (412) is rotatably connected to the first end of the third connecting rod (413). The second end of the third connecting rod (413) is fixedly connected to the glass panel (2). The driving component (42) is used to drive the first link (411) to move, thereby driving the second link (412) and the third link (413) to move, so as to adjust the angle between the second link (412) and the third link (413); When the glass panel (2) is in the ultimate closed position, the second link (412) and the third link (413) are on the same straight line, and the first link (411), the second link (412) and the third link (413) form a triangular stable structure.

2. The range hood according to claim 1, characterized in that The first end of the linkage assembly (41) is fixedly connected to the glass panel (2), and the second end of the linkage assembly (41) is connected to the driving end of the driving member (42). The linkage assembly (41) has an extended state and a retracted state. In the extended state, the linkage assembly (41) is used to support the glass panel (2) in motion or at the extreme extended position. In the retracted state, the linkage assembly (41) forms the triangular stable structure.

3. The range hood according to claim 1, characterized in that, The third link (413) is arranged parallel to the surface of the glass panel (2).

4. The range hood according to claim 1, characterized in that, The first end of the first connecting rod (411) has a mounting hole adapted to the driving end of the driving member (42), the mounting hole being sleeved on the driving end of the driving member (42) so that the driving end of the driving member (42) is engaged with the first end of the first connecting rod (411).

5. The range hood according to any one of claims 1-4, characterized in that, The driving end of the first driving component (3) is capable of telescopic movement to drive the glass panel (2) to move between the extreme closed position and the extreme unfolded position.

6. The range hood according to any one of claims 1-4, characterized in that, The controller is used to obtain the preset extension speed of the first drive component (3) and the preset rotation speed of the drive member (42), and control the first drive component (3) to move at the preset extension speed and control the drive member (42) to rotate at the preset rotation speed, so that the motion stroke of the first drive component (3) applied to the glass panel (2) is consistent with the motion stroke of the linkage component (41) applied to the glass panel (2).

7. The range hood according to any one of claims 1-4, characterized in that, It also includes a fixing component (5) disposed between the range hood housing (1) and the glass panel (2), the fixing component (5) being located at the upper end of the glass panel (2); The first end of the fixing component (5) is fixed to the range hood housing (1), and the second end of the fixing component (5) is rotatably connected to the glass panel (2).

8. The range hood according to claim 3 or 4, characterized in that, The first connecting rod (411) makes an angle of 15-75° with the vertical direction.

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