Swing mechanism and electric rocking chair
By driving the motor to drive the curved arm to move in a circular motion, the swing frame is driven to swing with an elliptical trajectory, solving the problem of lag in the electric sofa during reversing and improving the user experience.
Patent Information
- Application Number
- CN202422007903.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The swing structure of existing electric sofas is prone to stuttering when reversing, especially when increasing the swing frequency.
By driving the motor to drive the curved arm to move in a circular motion, the swing frame is driven to circumferentially swing with an elliptical trajectory. The curved arm is rotating all the time during the reversal without pausing, reducing the feeling of stuttering during the swing.
It effectively reduces the feeling of lag during the swing, enhances the user's experience, and ensures that the swing is uniform and smooth at different frequencies.
Smart Images
Figure CN223008723U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of furniture, and particularly relates to a swing mechanism and an electric rocking chair. Background Art
[0002] In the swing structure of an electric sofa in the related art, a telescopic rod is used for swinging, and it can only reciprocate along a preset direction. When reaching the maximum stroke, the swing mechanism will stop moving for a moment and then reverse. When moving at a low speed, there is no obvious reverse jamming. When the swing frequency is increased, there is a more obvious jamming feeling during reversing.
[0003] How to avoid the jamming feeling during reciprocating swinging is an urgent problem to be solved at present.
[0004] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application. Therefore, the above description is not considered as information of the prior art. Summary of the Utility Model
[0005] This disclosure embodiment provides at least a swing mechanism and an electric rocking chair.
[0006] In a first aspect, this disclosure embodiment provides a swing mechanism, including:
[0007] A base, a swing frame, a driving motor, and a crank arm;
[0008] The swing frame is hinged to the base;
[0009] The driving motor is fixedly arranged on the base;
[0010] One end of the crank arm is rotatably connected to the swing frame, and the other end is rotatably connected to the driving shaft of the driving motor;
[0011] The driving motor is adapted to drive the crank arm to swing reciprocally when rotating, so as to drive the swing frame to swing in an elliptical trajectory in a cycle.
[0012] In an optional embodiment, the crank arm includes an arm body, a rotating bearing, and an eccentric wheel;
[0013] The rotating bearing is embedded in the arm body;
[0014] The eccentric wheel passes through the rotating bearing and is fixedly connected to the driving shaft of the driving motor.
[0015] In an optional embodiment, the swing mechanism further includes a support frame;
[0016] The support frame is fixedly arranged on the base;
[0017] The drive shaft of the drive motor passes through the eccentric wheel and is rotatably connected to the support frame.
[0018] In an alternative embodiment, the swing mechanism further includes a controller and a Hall sensor;
[0019] A magnetic block is provided at the adaptation position of the arm body and the Hall sensor;
[0020] The controller is adapted to receive the swing frequency of the arm body collected by the Hall sensor to adjust the rotational speed of the drive motor, so that the swing frame swings in an elliptical trajectory according to a preset swing frequency in a cycle.
[0021] In an alternative embodiment, the swing amplitude of the swing frame in the horizontal direction is greater than that in the vertical direction, that is, the swing trajectory of the swing frame is elliptical.
[0022] In an alternative embodiment, a connection block is fixedly provided on the swing frame;
[0023] The connection block is π-shaped;
[0024] One end of the crank arm extends into the connection block and is rotatably connected to the connection block through a rotating shaft.
[0025] In an alternative embodiment, the drive motor includes: a motor body and a reduction gearbox;
[0026] The rotor of the motor body is adapted to drive the drive shaft in the reduction gearbox to rotate.
[0027] In an alternative embodiment, the swing frame includes: a first cross arm, a second cross arm, a first frame body and a second frame body;
[0028] The first frame body and the second frame body are arranged oppositely and are arranged on the base;
[0029] The first cross arm and the second cross arm are arranged oppositely and are respectively adapted to fixedly connect the two vertical arms of the first frame body and the second frame body;
[0030] The crank arm is rotatably connected to the first cross arm or the second cross arm;
[0031] The crank arm is adapted to drive the bottom beams of the first frame body and the second frame body to swing in an elliptical trajectory in a cycle during reciprocating swing.
[0032] In an alternative embodiment, the base includes: a support frame body and a mounting cross plate;
[0033] The mounting cross plate is fixedly arranged on the support frame body
[0034] The driving motor is fixedly arranged on the mounting cross plate.
[0035] Second, the embodiments of the present disclosure further provide an electric rocking chair, including:
[0036] A rocking chair telescopic frame and the swing mechanism as described above;
[0037] The rocking chair telescopic frame is arranged on the swing mechanism.
[0038] The beneficial effect of the present utility model is that the swing mechanism and the electric rocking chair drive the crank arm to perform circular motion through the driving motor, thereby driving the swing frame to perform circular swing along an elliptical track. During commutation, the crank arm is always rotating without pausing, thereby reducing the sense of jamming during the swing process and improving the user experience.
[0039] Other features and advantages of the present utility model will be described in the subsequent description, and, in part, will be obvious from the description or understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the description, the claims, and the drawings.
[0040] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, specific preferred embodiments are hereby given, and in conjunction with the accompanying drawings, the following detailed description is provided. Description of the Drawings
[0041] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0042] Figure 1 A perspective view of a swing mechanism provided by an embodiment of the present disclosure.
[0043] Figure 2 An exploded view of a swing mechanism provided by an embodiment of the present disclosure.
[0044] Figure 3 A cross-sectional view of a swing mechanism provided by an embodiment of the present disclosure.
[0045] Figure 4 A top view of a swing mechanism provided by an embodiment of the present disclosure.
[0046] Figure 5 A partial structural schematic diagram of an electric rocking chair provided by an embodiment of the present disclosure.
[0047] In the figure: 100, base; 110, support frame; 120, mounting cross plate; 200, swing frame; 210, connecting block; 220, first cross arm; 230, second cross arm; 240, first frame; 250, second frame; 300, drive motor; 310, drive shaft; 320, motor body; 330, reduction gearbox; 400, crank arm; 410, arm body; 420, rotating bearing; 430, eccentric wheel; 500, support frame; 600, Hall sensor; 610, magnetic block; 700, rocking chair telescopic frame. Detailed implementation manners
[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0049] In this document, when it is mentioned that the first component is located on the second component, this may mean that the first component can be directly formed on the second component, or a third component can be inserted between the first component and the second component. In addition, in the drawings, for the effective description of the technical content, the thickness of the components can be exaggerated or reduced.
[0050] In this document, the exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0051] The terms used in this document are only for describing specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an", and "the" may also be intended to include the plural forms, unless it is clearly stated otherwise in this document. The terms "include", "comprise", and "have" are inclusive, and thus specify the existence of features, steps, operations, elements, and / or components, but do not exclude the existence or addition of one or more other features, steps, operations, elements, components, and / or their combinations. The method steps, processes, and operations described in this document should not be construed as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as the order of execution. Additional or alternative steps may be employed.
[0052] As used herein, phrases such as "in one embodiment", "according to one embodiment", "in some embodiments", etc. generally refer to the fact that the specific feature, structure, or characteristic after the phrase can be included in at least one embodiment of the present disclosure. Therefore, a specific feature, structure, or characteristic can be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, terms such as "example", "exemplary", etc. are used "as an example, instance, or illustration. Any embodiment, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects, or designs. Instead, the use of terms such as "example", "exemplary", etc. is intended to present concepts in a specific manner.
[0053] It has been found through research that the swing structures of electric sofas in the related art all adopt linear reciprocating motion and can only move back and forth along a preset direction. When reaching the maximum stroke, the swing mechanism will stop moving for a moment and then reverse. At low speeds, there is no obvious sense of reverse jamming. When the swing frequency is increased, there is a more obvious sense of jamming during reverse.
[0054] Based on the above research, the embodiments of the present disclosure provide a swing mechanism and an electric rocking chair. The driving motor drives the crank arm to perform circular motion, thereby driving the swing frame to swing in a circular motion along an elliptical trajectory. During reverse, the crank arm is always rotating without pausing, thereby reducing the sense of jamming during the swing process and improving the user experience.
[0055] All the defects existing in the above solutions are the results obtained by the inventors through practice and careful research. Therefore, the process of discovering the above problems and the solutions proposed by the present disclosure in this article for the above problems should all be the contributions made by the inventors to the present disclosure during the process of the present disclosure.
[0056] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0057] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0058] See Figure 1 , Figure 1The structural schematic diagram of the swing mechanism is shown, including: a base 100, a swing frame 200, a driving motor 300, and a crank arm 400; the swing frame 200 is hinged to the base 100; the driving motor 300 is fixedly arranged on the base 100; one end of the crank arm 400 is rotatably connected to the swing frame 200, and the other end is rotatably connected to the drive shaft 310 of the driving motor 300; the driving motor 300 is adapted to drive the crank arm 400 to perform a circular motion when rotating, thereby driving the swing frame 200 to perform a cyclic swing along an elliptical trajectory. By driving the crank arm 400 to perform a circular motion by the driving motor 300, thereby driving the swing frame 200 to perform a cyclic swing along an elliptical trajectory, during commutation, the crank arm 400 has been rotating without pausing, thereby reducing the sense of jerk during the swing and improving the user experience.
[0059] Please refer to Figure 2 and Figure 3 , in at least one embodiment, the crank arm 400 includes an arm body 410, a rotating bearing 420, and an eccentric wheel 430; the rotating bearing 420 is embedded in the arm body 410; the eccentric wheel 430 passes through the rotating bearing 420 and is fixedly connected to the drive shaft 310 of the driving motor 300. By setting the eccentric wheel 430, the end of the arm body 410 close to the drive shaft 310 performs a circular motion, thereby driving the swing frame 200 to perform a cyclic swing along an elliptical trajectory, thus avoiding the sense of jerk during commutation.
[0060] It should be noted that the swing amplitude can be adjusted according to the size of the eccentric wheel 430, so as to meet the usage requirements of different users.
[0061] In order to ensure that the drive shaft 310 does not wobble during operation, in at least one embodiment, the swing mechanism further includes a support frame 500; the support frame 500 is fixedly arranged on the base 100; the drive shaft 310 of the driving motor 300 passes through the eccentric wheel 430 and is rotatably connected to the support frame 500. At the same time, by setting the support frame 500, the overall strength of the crank arm 400 is improved.
[0062] Please refer to Figure 2 and Figure 4, in at least one embodiment, the swing mechanism further includes a controller and a Hall sensor 600; a magnetic block 610 is provided at the fitting position between the arm body 410 and the Hall sensor 600; the controller is adapted to receive the swing frequency of the arm body 410 collected by the Hall sensor 600 to adjust the rotation speed of the driving motor 300, so that the swing frame 200 swings in an elliptical trajectory according to a preset swing frequency in a cycle. Since the swing frame 200 completes one swing when the crank arm 400 rotates one week, the swing frequency of the crank arm 400 can be detected by the Hall sensor 600 to complete the feedback of the swing frequency of the swing frame 200. When the swing speed is greater than or less than the frequency required by the user, the controller can adaptively adjust the driving frequency of the driving motor 300, so that the swing frequency of the swing frame 200 always meets the user's requirements.
[0063] It should be noted that the swing amplitude of the swing frame 200 in the horizontal direction is greater than that in the vertical direction, that is, the swing trajectory of the swing frame 200 is elliptical.
[0064] In order to improve the connection stability of the crank arm 400 and the overall strength of the swing mechanism, in at least one embodiment, a connection block 210 is fixedly provided on the swing frame 200; the connection block 210 is π-shaped; one end of the crank arm 400 extends into the connection block 210 and is rotatably connected to the connection block 210 through a rotating shaft.
[0065] Please continue to refer to Figure 2 , in at least one embodiment, the driving motor 300 includes: a motor body 320 and a reduction gearbox 330; the rotor of the motor body 320 is adapted to drive the driving shaft 310 in the reduction gearbox 330 to rotate. By setting the reduction gearbox 330 to reduce the rotation speed of the driving shaft 310 and increase the torque of the driving shaft 310, the swing requirements of the electric sofa can be met. At the same time, the output direction of the driving shaft 310 is changed to make the structure of the swing mechanism more compact.
[0066] Please continue to refer to Figure 1 and Figure 2, the structure of the swing frame 200 will be described below: The swing frame 200 includes: a first cross arm 220, a second cross arm 230, a first frame body 240, and a second frame body 250; the first frame body 240 and the second frame body 250 are arranged oppositely and are arranged on the base 100; the first cross arm 220 and the second cross arm 230 are arranged oppositely and are respectively adapted to fixedly connect the two vertical arms of the first frame body 240 and the second frame body 250; the crank arm 400 is rotatably connected to the first cross arm 220 or rotatably connected to the second cross arm 230; the crank arm 400 is adapted to drive the bottom beams of the first frame body 240 and the second frame body 250 to perform circular swinging along an elliptical trajectory when reciprocatingly swinging.
[0067] Among them, both the first frame body 240 and the second frame body 250 are of a parallelogram-like structure, the top beam is fixedly arranged on the base 100, and during the movement of the crank arm 400, it will push or pull the two vertical arms of the parallelogram-like structure to rotate, thereby driving the bottom beam to perform circular swinging along an elliptical trajectory.
[0068] In order to improve the strength of the base 100, in at least one embodiment, the base 100 includes: a support frame body 110 and a mounting cross plate 120; the mounting cross plate 120 is fixedly arranged on the support frame body 110, and the driving motor 300 is fixedly arranged on the mounting cross plate 120. At the same time, the driving motor 300 and other components are supported by the mounting cross plate 120, making the swing mechanism more compact and optimizing the space layout.
[0069] Please refer to Figure 5 , at least one embodiment provides an electric rocking chair, including: a rocking chair telescopic frame 700 and the swing mechanism as described above; the rocking chair telescopic frame 700 is arranged on the swing mechanism. By driving the crank arm 400 to perform circular motion by the driving motor 300, the swing frame 200 is driven to perform circular swinging along an elliptical trajectory. During commutation, the crank arm 400 has been rotating without pausing, thereby reducing the jamming feeling during swinging and improving the user experience.
[0070] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0071] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second" and other numerical terms used herein do not imply an order or sequence unless explicitly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above may be referred to as the second element, component, region, layer or section.
[0072] Spatially relative terms, such as "inner", "outer", "below", "beneath", "lower", "above", "upper", etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientation depicted in the figures, spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is turned over, an element described as "below" or "beneath" another element or feature will then be oriented "above" the other element or feature. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein are to be interpreted accordingly.
[0073] In the above discussion, unless otherwise specified, when used to describe a numerical value, terms such as "about", "approximately", "substantially", etc. mean a variation of + / −10% of that value.
[0074] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A swing mechanism, characterized in that: include: Base, swing frame, drive motor and crank arm; The swing frame is hinged to the base; The driving motor is fixedly arranged on the base; One end of the crank arm is rotatably connected to the swing frame, and the other end is rotatably connected to the drive shaft of the drive motor; The driving motor is suitable for driving the crank arm to perform circular motion when rotating, thereby driving the swing frame to perform cyclic swing in an elliptical trajectory.
2. The swing mechanism according to claim 1, characterized in that: The crank arm comprises an arm body, a rotating bearing and an eccentric wheel; The rotary bearing is embedded in the arm body; The eccentric wheel passes through the rotary bearing and is fixedly connected to the driving shaft of the driving motor.
3. The swing mechanism according to claim 2, characterized in that: The swing mechanism also includes a support frame; The support frame is fixedly arranged on the base; The driving shaft of the driving motor passes through the eccentric wheel and is rotatably connected to the supporting frame.
4. The swing mechanism according to claim 2, characterized in that: The swing mechanism also includes a controller and a Hall sensor; A magnetic block is provided at the adaption position between the arm body and the Hall sensor; The controller is suitable for receiving the swing frequency of the arm body collected by the Hall sensor to adjust the rotation speed of the drive motor, so that the swing frame swings cyclically in an elliptical trajectory according to a preset swing frequency.
5. The swing mechanism according to claim 2, characterized in that: The swing amplitude of the swing frame in the horizontal direction is greater than the swing amplitude in the vertical direction, that is, the swing trajectory of the swing frame is elliptical.
6. The swing mechanism according to claim 1, characterized in that: A connecting block is fixedly arranged on the swing frame; The connecting block is in the shape of a letter π; One end of the crank arm extends into the connecting block and is rotatably connected to the connecting block via a rotating shaft.
7. The swing mechanism according to claim 1, characterized in that: The driving motor comprises: a motor body and a reduction box; The rotor of the motor body is suitable for driving the driving shaft in the reduction box to rotate.
8. The swing mechanism according to claim 1, characterized in that: The swing frame comprises: a first cross arm, a second cross arm, a first frame body and a second frame body; The first frame body and the second frame body are arranged opposite to each other and are arranged on the base; The first horizontal arm and the second horizontal arm are arranged opposite to each other and are respectively suitable for fixing and connecting the two vertical arms of the first frame body and the two vertical arms of the second frame body; The crank arm is rotationally connected to the first cross arm or is rotationally connected to the second cross arm; The crank arm is suitable for driving the bottom beams of the first frame body and the second frame body to swing in a circular manner along an elliptical trajectory when swinging back and forth.
9. The swing mechanism according to claim 1, characterized in that: The base comprises: a supporting frame and a mounting horizontal plate; The mounting horizontal plate is fixedly arranged on the supporting frame The driving motor is fixedly arranged on the mounting transverse plate.
10. An electric rocking chair, characterized in that: include: A rocking chair telescopic frame and a rocking mechanism as claimed in any one of claims 1 to 9; The rocking chair telescopic frame is arranged on the swing mechanism.