Self-rotating buffering lifting adjusting device and furniture

Abstract

The invention relates to the technical field of living furniture, and particularly discloses a self-rotating buffering lifting adjusting device and furniture. Comprising a threaded part, a rotating seat which is located above the threaded part and internally provided with a rotary adjusting containing cavity, and a rotary adjusting driving assembly which drives the rotating seat to rotate around the vertical axis so as to adjust the height position of the rotating seat. A spinning buffer mechanism, comprising a follow-up lower stud and a supporting upper stud, wherein the follow-up lower stud is rotationally mounted in the rotary adjusting containing cavity around the vertical axis and synchronously moves up and down along with the rotating seat; the supporting upper stud is spirally connected with the follow-up lower stud and extends upwards to the outside of the rotary adjusting containing cavity in a protruding mode; and the stud pressure spring is positioned between the two studs so as to drive the supporting upper stud to move upwards relative to the follow-up lower stud. The self-rotating buffering lifting adjusting device and the furniture can effectively solve the problems that an existing sofa is insufficient in dynamic buffering and limited in hardness adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of living furniture, and in particular to a self-spinning buffer lifting and adjusting device and furniture. Background Art

[0002] In the modern furniture industry, sofas are an essential component of everyday homes and offices, and their comfort and durability are key concerns for users. Currently, sofa seating surfaces often utilize a serpentine spring structure as a support component, providing seat cushion support through the elastic deformation of the spring. However, this traditional serpentine spring structure suffers from the following significant drawbacks in practical use:

[0003] (1) Insufficient dynamic buffering

[0004] When a user sits down or stands up, the springs sink or rebound quickly, lacking an effective dynamic cushioning mechanism. Specifically, when sitting down, the springs instantly sink too much, causing the user to feel insufficient support; when standing up, the springs rebound too quickly, generating a significant reaction force and reducing comfort.

[0005] (2) Limited soft and hard adjustment

[0006] The support characteristics of the serpentine spring are fixed by its material, wire diameter, and arrangement. Users cannot adjust the firmness or softness based on personal preferences or usage scenarios (such as long periods of sitting or short breaks). This rigid design makes the sofa unable to meet the personalized needs of different users or the same user at different times, reducing the flexibility of the user experience.

[0007] Therefore, it is necessary to improve the existing sofas to solve the problems of insufficient dynamic cushioning and limited softness and hardness adjustment of the existing sofas.

[0008] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Summary of the Invention

[0009] An object of the present invention is to provide a self-spinning buffer lifting and adjusting device and furniture, which can effectively solve the problems of insufficient dynamic buffering and limited softness and hardness adjustment of existing sofas.

[0010] To achieve the above objectives, the present invention provides a spin buffer lifting and adjusting device, comprising:

[0011] A lifting and lowering adjustment mechanism, comprising a threaded member, a rotating seat located above the threaded member and having a rotation adjustment accommodating cavity therein, and a rotation adjustment drive assembly for driving the rotating seat to rotate about a vertical axis to adjust the height position of the rotating seat;

[0012] The spin buffer mechanism includes a follower lower stud that is rotatably installed in the rotation adjustment cavity around a vertical axis and moves up and down synchronously with the rotating seat, a supporting upper stud that is spirally connected to the follower lower stud and protrudes upward to the outside of the rotation adjustment cavity, and a stud compression spring located between the two studs to drive the supporting upper stud to move upward relative to the follower lower stud.

[0013] Optionally, a plurality of driven bosses arranged along a spiral line are fixedly provided on the circumferential surface of the rotating seat;

[0014] The rotary drive assembly includes a driving gear, a rotary drive mechanism for driving the driving gear to rotate, and a control device electrically connected to the rotary drive mechanism;

[0015] The driving gear is located on the side of the rotating seat and engages with each driven boss in sequence when rotating, so that the rotating seat drives the follower lower stud to move up and down.

[0016] Optionally, the lower end of the follower lower stud is rotatably mounted on the bottom of the rotation adjustment accommodating cavity through a rotary bearing, and the upper end of the follower lower stud is provided with a lower spiral portion;

[0017] An upper spiral portion is provided at the lower portion of the supporting upper stud and is spirally connected to the lower spiral portion.

[0018] Optionally, a spring limiting ring is provided on the bottom surface of the upper spiral portion for the lower spiral portion to pass through;

[0019] The stud compression spring is sleeved on the lower spiral portion;

[0020] Furthermore, the upper end of the stud compression spring abuts against the bottom surface of the spring limiting ring, and the lower end of the stud compression spring abuts against the top surface of the inner ring of the rotary bearing.

[0021] Optionally, the threaded member includes a threaded rod with an external thread and / or a threaded sleeve with an internal thread;

[0022] The upper end of the threaded rod is inserted into the bottom of the rotating seat and is threadedly connected to the rotating seat;

[0023] The bottom of the rotating seat is inserted into the threaded sleeve and is threadedly connected with the threaded sleeve.

[0024] In another aspect, a piece of furniture is provided, comprising:

[0025] furniture bases;

[0026] An elastic support member, located above the furniture base, for providing upward elastic support to a human body;

[0027] In any of the aforementioned self-spinning buffer lifting and adjusting devices, the threaded member of the self-spinning buffer lifting and adjusting device is installed on the furniture base, and the supporting upper stud of the self-spinning buffer lifting and adjusting device is installed and fixed on the bottom of the elastic support member.

[0028] Optionally, the elastic support member includes:

[0029] A supporting frame, wherein the supporting frame encloses an elastic supporting area;

[0030] a central gasket, the central gasket being located at the center of the elastic support area;

[0031] A plurality of main tensile elastic members are arranged around the central gasket, and the central gasket is connected to the supporting frame.

[0032] Optionally, each of the main tensile elastic members connects the central gasket to each vertex position of the supporting frame;

[0033] The elastic support member further comprises a plurality of longitudinal auxiliary tensile elastic members arranged parallel to the length direction of the support frame, and a plurality of transverse auxiliary tensile elastic members arranged parallel to the width direction of the support frame.

[0034] Wherein, each of the auxiliary tensile elastic members is wound and fixed on the supporting frame and spans the elastic supporting area.

[0035] Optional,

[0036] The main tensile elastic member is a snake spring, and the longitudinal auxiliary tensile elastic member and the transverse auxiliary tensile elastic member are both elastic bands.

[0037] Optionally, the elastic support member includes:

[0038] A supporting frame, wherein the supporting frame encloses an elastic supporting area;

[0039] A plurality of serpentine springs, each of the serpentine springs being fixedly arranged parallel to each other in the elastic support area;

[0040] A central support member, the central support member is perpendicular to each of the serpentine springs and is fixed below the center position of each of the serpentine springs through a connecting member;

[0041] An end distance limiting member, the end distance limiting member is perpendicular to each of the serpentine springs and is fixed to the end position of each of the serpentine springs through a connecting member;

[0042] The central support member and the end distance limiting member are used to limit the serpentine springs from approaching or moving away from each other and reduce the displacement deviation of the serpentine springs in the up and down movement;

[0043] The upper support stud is fixed to the bottom of the central support member, and supports each of the serpentine springs upward through the central support member.

[0044] The beneficial effects of the present invention are: providing a self-spinning buffer lifting and adjusting device and furniture, the working process of which is as follows:

[0045] S10: Soft and hard adjustment stage (static adjustment)

[0046] The user activates the rotary drive assembly manually or through a control device (button / APP), driving the rotating seat to rotate around the axis of the threaded part. Due to the interaction of the threads, the rotating seat rises and falls in the vertical direction, thereby pushing the follower lower stud and the supporting upper stud up and down as a whole. At this time:

[0047] S101: When the rotating seat rises, the upper support stud pushes the elastic support member upward, thereby increasing the initial support force of the elastic support member, which is manifested as "hard support";

[0048] S102: When the rotating seat descends, the upper support stud falls back downward, and the upward support force on the elastic support member is reduced, which manifests as "soft support".

[0049] S20: Dynamic cushioning phase (sitting down / standing up)

[0050] S201: Sitting down cushioning: When the user sits down, the elastic support member is pressed down, pushing the upper support stud downward. At this time:

[0051] ①The stud compression spring is compressed to store energy;

[0052] ② The spiral fit between the supporting upper stud and the following lower stud converts the linear downward force into the rotational motion (positive rotation) of the following lower stud, and the kinetic energy is consumed by the thread friction damping;

[0053] ③The sinking speed of the elastic support is slowed down due to energy conversion, avoiding instantaneous collapse.

[0054] S202: Standing up cushioning: When the user stands up, the stud compression spring releases the stored energy, pushing the upper stud to move upward. At this time:

[0055] ①The stud compression spring drives the follower lower stud to reverse, and the rebound kinetic energy is absorbed by the rotation damping;

[0056] ② The elastic support member slowly resets to avoid the impact caused by rapid rebound.

[0057] Therefore, the self-spinning buffer lifting and adjusting device and furniture provided by the present invention can effectively solve the problems of insufficient dynamic buffering and limited softness and hardness adjustment of existing sofas. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0059] Figure 1 A schematic cross-sectional view of the furniture provided in the embodiment;

[0060] Figure 2 A schematic diagram of the top surface of the furniture provided in the embodiment;

[0061] Figure 3 A schematic diagram of the assembly of the spin buffer lifting and adjusting device provided in the embodiment;

[0062] Figure 4 An exploded diagram of a spin buffer lifting and adjusting device provided in an embodiment;

[0063] Figure 5 A schematic diagram of the structure of a manual rocker provided in an embodiment;

[0064] Figure 6 A schematic diagram of the assembly of the spin buffer mechanism provided in the embodiment;

[0065] Figure 7 A schematic structural diagram of the elastic support member provided in Example 2;

[0066] Figure 8 This is a schematic structural diagram of the elastic support member provided in Example 3.

[0067] In the picture:

[0068] 1. Furniture base; 101. Spring steel ball assembly;

[0069] 2. Elastic support member;

[0070] 201, support frame;

[0071] 202, center gasket; 203, main tensile elastic member; 204, elastic net; 2041, longitudinal secondary tensile elastic member; 2042, transverse secondary tensile elastic member;

[0072] 205, serpentine spring; 206, center support member; 207, end limit member; 208, connecting member;

[0073] 3. Lifting adjustment mechanism; 301. Threaded member; 302. Rotating seat; 3021. Rotational adjustment chamber; 3022. Driven boss; 303. Rotational adjustment drive assembly; 3031. Drive gear; 3032. Rotational drive mechanism; 3032a. Transmission rod; 3032b. Z-shaped rocker; 3033. Control device;

[0074] 4. Spin buffer mechanism; 401. Follow-up lower stud; 4011. Lower spiral portion; 402. Support upper stud; 4021. Upper spiral portion; 4022. Spring limit ring; 4023. Horizontal support plate; 403. Stud compression spring; 404. Rotary bearing. DETAILED DESCRIPTION

[0075] Reference to "embodiments" in the present invention means that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present invention, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0076] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which the present invention belongs. The use of relevant terms herein is only for describing specific embodiments and is not intended to limit the present invention.

[0077] In the description of the present invention, the term "and / or" is used to describe a logical relationship between objects, indicating that three possible relationships exist. For example, A and / or B means: A exists, B exists, and both A and B exist. Furthermore, the character " / " generally indicates that the objects are in a logical "or" relationship.

[0078] In the present invention, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0079] Without further restrictions, in the present invention, the words "include", "comprise", "have" or other similar expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0080] Consistent with the understanding in the Examination Guidelines, in the present invention, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of the present invention, "multiple" means two or more (including two), and similar expressions related to "multiple," such as "multiple groups" and "multiple times," are also understood in this manner, unless otherwise specifically defined.

[0081] In the description of the embodiments of the present invention, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present invention or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention.

[0082] Unless otherwise expressly specified or limited, in the description of the embodiments of the present invention, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection between two elements or the interaction relationship between two elements. For those skilled in the art of the technology to which the present invention belongs, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0083] Example 1

[0084] See also Figure 1 and Figure 2 This embodiment provides a piece of furniture that can effectively solve the problems of insufficient dynamic cushioning and limited softness and hardness adjustment of existing sofas, specifically including:

[0085] Furniture base 1;

[0086] An elastic support member 2, located above the furniture base 1, for providing upward elastic support to the human body;

[0087] The self-spinning buffer lifting and adjusting device is installed on the furniture base 1 and supports the bottom of the elastic support member 2 upward.

[0088] Further, see Figure 3 and Figure 4 , the spin buffer lifting and adjusting device includes:

[0089] A lifting and adjusting mechanism 3, comprising a threaded member 301 mounted on the furniture base 1, a rotating base 302 located above the threaded member 301 and having a rotation adjustment chamber 3021 therein, and a rotation adjustment drive assembly 303 for driving the rotating base 302 to rotate about a vertical axis to adjust the height position of the rotating base 302;

[0090] The spin buffer mechanism 4 includes a follower lower stud 401 that is rotatably installed in the rotation adjustment chamber 3021 around a vertical axis and moves up and down synchronously with the rotating seat 302, a supporting upper stud 402 that is spirally connected to the follower lower stud 401 and protrudes upward to the outside of the rotation adjustment chamber 3021, and a stud compression spring 403 located between the two studs to drive the supporting upper stud 402 to move upward relative to the follower lower stud 401; wherein, the upper end of the supporting upper stud 402 protruding to the outside of the rotation adjustment chamber 3021 is fixed to the bottom of the elastic support member 2 so as to support the elastic support member 2 upward.

[0091] In the present invention, the furniture may be a sofa or a bed frame, or other furniture that requires elastic support for the human body. When used as a sofa, the elastic support member 2 serves as the seating support of the sofa; when used as a bed frame, the elastic support member 2 serves as the rib frame of the bed frame. The present invention does not limit the specific use of the furniture.

[0092] The self-spinning buffer lifting and adjusting device and furniture provided by the present invention have the following working process:

[0093] S10: Soft and hard adjustment stage (static adjustment)

[0094] The user activates the rotary drive assembly 303 manually or through the control device 3033 (button / APP), driving the rotating base 302 to rotate around the axis of the screw member 301. Due to the interaction of the threads, the rotating base 302 rises and falls in the vertical direction, thereby driving the follower lower stud 401 and the supporting upper stud 402 to move up and down as a whole. At this time:

[0095] S101: When the rotating seat 302 rises, the upper support stud 402 lifts the elastic support member 2 upward, thereby increasing the initial support force of the elastic support member 2, which is manifested as "hard support";

[0096] S102: When the rotating seat 302 descends, the supporting upper stud 402 falls back downward, and the upward supporting force on the elastic support member 2 is reduced, which manifests as "soft support".

[0097] S20: Dynamic cushioning phase (sitting down / standing up)

[0098] S201: Sitting down cushioning: When the user sits down, the elastic support member 2 is pressed down, pushing the upper support stud 402 downward. At this time:

[0099] ① The stud compression spring 403 is compressed to store energy;

[0100] ② The spiral fit between the supporting upper stud 402 and the following lower stud 401 converts the linear downward force into the rotational motion (positive rotation) of the following lower stud 401, and the kinetic energy is consumed by the friction damping of the thread;

[0101] ③ The sinking speed of the elastic support member 2 is slowed down due to energy conversion, avoiding instantaneous collapse.

[0102] S202: Standing up cushioning: When the user stands up, the stud compression spring 403 releases the stored energy, pushing the upper stud 402 upward. At this time:

[0103] ① The stud compression spring 403 drives the follower lower stud 401 to reverse, and the rebound kinetic energy is absorbed by the rotation damping;

[0104] ② The elastic support member 2 is slowly reset to avoid the impact caused by rapid rebound.

[0105] Therefore, the self-spinning buffer lifting and adjusting device and furniture provided by the present invention can effectively solve the problems of insufficient dynamic buffering and limited softness and hardness adjustment of existing sofas.

[0106] The specific structures of the lifting adjustment mechanism 3 and the spin buffer mechanism 4 are introduced in sequence below.

[0107] 1. Lifting and adjusting mechanism 3

[0108] See also Figure 3 and Figure 4 In this embodiment, there are two connection modes of the screw member 301 and the rotating seat 302: fixed connection and threaded connection. The following describes the connection mode of the screw member 301 and the rotating seat 302:

[0109] (1) The upper end of the threaded member 301 is fixedly connected to the rotating seat 302, and the lower end of the threaded member 301 is threadedly connected to the furniture base 1. When the rotary drive assembly 303 drives the rotating seat 302 to rotate, the threaded member 301 will also rotate with the rotating seat 302 relative to the furniture base 1, thereby realizing the up and down position adjustment of the threaded member 301, the rotating seat 302, and the spin buffer mechanism 4;

[0110] (2) The upper end of the threaded member 301 is threadedly connected to the rotating seat 302, and the lower end of the threaded member 301 is fixedly connected to the furniture base 1. When the rotation drive component 303 drives the rotating seat 302 to rotate, the rotating seat 302 rotates relative to the threaded member 301, thereby realizing the upper and lower position adjustment of the rotating seat 302 and the spin buffer mechanism 4.

[0111] In this embodiment, a plurality of driven bosses 3022 arranged along a spiral line are fixedly mounted on the circumferential surface of the rotating base 302. Accordingly, the rotary drive assembly 303 includes a driving gear 3031 and a rotary drive mechanism 3032 for rotating the driving gear 3031. The driving gear 3031 is located on the side of the rotating base 302 and sequentially engages with each driven boss 3022 during rotation, thereby causing the rotating base 302 to drive the follower lower stud 401 to move up and down.

[0112] When the rotary drive mechanism 3032 is driven to rotate, it will drive the driving gear 3031 to rotate. The rotation of the driving gear 3031 will cause the spirally arranged driven bosses 3022 to be sequentially engaged in the tooth grooves of the driving gear 3031, thereby causing the rotating seat 302 to rotate. The rotation of the rotating seat 302 will drive the spin buffer mechanism 4 to move up and down, thereby realizing "hard support" or "soft support".

[0113] Optionally, the driven boss 3022 is spherical, which not only reduces friction loss and improves transmission smoothness, but also reduces operating noise. In some other embodiments, the driven boss 3022 can also be cylindrical, etc., which is not limited in this embodiment.

[0114] The specific driving modes of the rotation driving mechanism 3032 can be divided into two types: electric driving and manual driving. The following introduces the two driving modes respectively.

[0115] (1) Electric-driven rotary drive mechanism 3032

[0116] like Figure 3 and Figure 4As shown, in the rotation drive mechanism 3032 of the electric drive structure, the rotation drive mechanism 3032 is an electric component such as a servo motor, and the rotation drive assembly 303 further includes a control device 3033 electrically connected to the rotation drive mechanism 3032.

[0117] Furthermore, the control device 3033 includes at least one of a control panel provided with physical buttons and / or virtual buttons (installed on the side of the furniture base 1), and a mobile terminal installed with a designated APP.

[0118] Specifically, the control device 3033 includes an up button and a down button. When the up button is clicked, the rotating base 302 rises to increase the support hardness; when the down button is clicked, the rotating base 302 falls to reduce the support hardness.

[0119] The use of a control panel or mobile terminal APP control allows users to easily adjust the sofa support hardness, achieving an intelligent operation experience. At the same time, the meshing transmission method between the driving gear 3031 and the driven boss 3022 ensures the accuracy and reliability of the adjustment process.

[0120] (2) Manually driven rotary drive mechanism 3032

[0121] See also Figure 5 In the rotation drive mechanism 3032 of the hand-driven structure, the rotation drive mechanism 3032 is a manual rocker.

[0122] Specifically, the manual rocker includes a transmission rod 3032a having one end fixedly connected to the driving gear 3031, and a Z-shaped rocker 3032b or a turntable rocker fixedly connected to the other end of the transmission rod 3032a.

[0123] Optionally, the circumferential surface of the transmission rod 3032a close to one end of the Z-shaped rocker 3032b or the turntable rocker is provided with a plurality of positioning slots for the spring steel ball assembly 101 to be snapped into; accordingly, a rod through hole is provided on the side of the furniture base 1, and the hole wall of the rod through hole is provided with a plurality of spring steel ball assemblies 101 for positioning.

[0124] When the Z-shaped rocker 3032b or the turntable rocker is rotated, the transmission rod 3032a rotates accordingly, so that each spring steel ball assembly 101 is sequentially locked into each positioning slot. After the manual rocker stops rotating, the locking and positioning effect of the spring steel ball assembly 101 and the positioning slot prevents the manual rocker from rotating at will. Therefore, the driving gear 3031 will not rotate at will, thereby ensuring the stability of the position of the rotating base 302.

[0125] In summary, the lifting and adjusting mechanism 3 provided in this embodiment has the following advantages:

[0126] ① The height adjustment is achieved by the threaded rod / sleeve and the threaded joint of the rotating seat 302, which has a simple and reliable structure and is easy to produce and assemble.

[0127] ② The spirally arranged driven boss 3022 is meshed with the driving gear 3031 for transmission, resulting in high adjustment accuracy and smooth operation.

[0128] ③The spherical driven boss 3022 design reduces friction loss and noise, improving durability and comfort.

[0129] ④ The two-way adjustment mechanism (increasing the hardness and decreasing the softness) can flexibly adapt to the user's personalized needs for support hardness.

[0130] ⑤ The sinking problem of the elastic support member 2 can be repaired, thereby extending the service life of the furniture and reducing maintenance costs.

[0131] 2. Spin buffer mechanism 4

[0132] See also Figure 4 and Figure 6 In this embodiment, the lower end of the follower lower stud 401 is sleeved with a rotary bearing 404, and the upper end of the follower lower stud 401 is provided with a lower spiral portion 4011. The lower portion of the supporting upper stud 402 is provided with an upper spiral portion 4021 spirally connected to the lower spiral portion 4011. Furthermore, the bottom surface of the upper spiral portion 4021 is provided with a spring retaining ring 4022 for the lower spiral portion 4011 to pass through. The stud compression spring 403 is sleeved on the lower spiral portion 4011; and the upper end of the stud compression spring 403 abuts the bottom surface of the spring retaining ring 4022, and the lower end of the stud compression spring 403 abuts the top surface of the inner ring of the rotary bearing 404.

[0133] The follower lower stud 401 is mounted at the bottom of the rotary adjustment chamber 3021 via a rotating bearing 404, ensuring it can rotate freely under the elastic force of the stud compression spring 403, avoiding the jamming problem caused by friction in traditional structures. The matching design of the upper and lower spiral portions 4011 converts linear motion into rotational motion, making the buffering process smoother. At the same time, this separate structure facilitates the replacement of individual components during maintenance. The provision of a spring limit ring 4022 not only provides a stop for the stud compression spring 403, but also effectively limits the axial working position of the follower lower stud 401, ensuring that the follower lower stud 401 always spirally engages with the supporting upper stud 402 during rotation.

[0134] Optionally, a horizontal support piece 4023 is provided on the top of the upper support stud 402 for supporting the elastic support member 2 upward. The horizontal design of the horizontal support piece 4023 ensures that the reaction force of the elastic support member 2 on the upper support stud 402 is directed vertically downward along the axis of the upper support stud 402, thereby preventing the upper and lower studs from being stuck due to the biased reaction force.

[0135] Optionally, the surface roughness of the inner wall of the spring retaining ring 4022 is less than the surface roughness of the outer wall of the spring retaining ring 4022. During rotation, the follower lower stud 401 is likely to come into contact and rub against the inner wall of the spring retaining ring 4022. Controlling the surface roughness of the inner wall of the spring retaining ring 4022 to a relatively low value helps improve the smoothness of the inner wall of the spring retaining ring 4022, thereby reducing frictional resistance and part wear caused by friction, thereby extending its service life. Relaxing the surface roughness requirements for the outer wall of the spring retaining ring 4022 can reduce processing costs.

[0136] In this embodiment, the upper spiral portion 4021 and the spring limiting ring 4022 are an integrally formed structure, or the upper spiral portion 4021 and the spring limiting ring 4022 are a welded fixed structure.

[0137] The one-piece molded structure can reduce weld points and improve connection strength. Welding is also beneficial for polishing and grinding the inner wall of the spring retaining ring 4022 to meet the surface roughness requirements before welding it to the upper spiral portion 4021, thus reducing the difficulty of the surface treatment process.

[0138] In summary, the spin buffer mechanism 4 provided in this embodiment has the following advantages:

[0139] ① Dynamic buffer optimization: The linear pressure is converted into rotational motion through spiral matching, and the kinetic energy is consumed by thread friction damping, which effectively slows down the sinking speed of the elastic support member 2 and avoids instantaneous collapse.

[0140] ② Smooth rebound control: The stud compression spring 403 is used to store energy to drive the follow-up lower stud 401 to reverse, and the rotation damping absorbs the rebound kinetic energy to achieve slow reset of the elastic support member 2 to prevent rapid impact.

[0141] ③ Reliable axial positioning: The spring limiting ring 4022 limits the working position of the follower lower stud 401 to ensure that the spiral fit is always effective, and at the same time provides a stop for the stud compression spring 403.

[0142] ④ Reduced friction loss: The low roughness treatment of the inner wall of the spring limit ring 4022 reduces contact friction and extends the life of the parts. The outer wall relaxes the requirements to save costs.

[0143] Example 2

[0144] This embodiment provides an elastic support member with a center anti-sinking function, which can be used as the elastic support member in Example 1 to further optimize the center anti-sinking effect.

[0145] See also Figure 7 The elastic support member 2 provided in this embodiment includes:

[0146] A supporting frame 201, wherein the supporting frame 201 encloses and forms an elastic supporting area;

[0147] A central gasket 202, located at the center of the elastic support area;

[0148] A plurality of main tensile elastic members 203 are arranged around the central gasket 202 and connect the central gasket 202 to the supporting frame 201 .

[0149] The above-mentioned elastic support member 2 creatively adopts a combined structure of "central gasket 202 + radial main tensile elastic member 203", which fundamentally reconstructs the transmission path of the supporting force. The central gasket 202 is located in the center of the elastic support area as a rigid support core, directly bearing the concentrated load when the human body sits. This is in sharp contrast to the traditional snake spring structure in which the central area is suspended in the air without support. Multiple main tensile elastic members 203 extend radially outward with the central gasket 202 as the origin, and are evenly connected to various positions of the support frame 201, forming a mechanical distribution system similar to the spokes of a bicycle wheel. This layout allows the pressure on the central gasket 202 to be distributed in multiple directions, and each main tensile elastic member 203 only needs to bear part of the load, which significantly reduces the force strength of a single main tensile elastic member 203.

[0150] When the central spacer 202 is compressed, the radially arranged primary tensile elastic members 203 generate centripetal tension, forming a dynamic balancing mechanism that automatically compensates for any potential downward displacement. Compared to traditional snake spring designs with fixed ends and a suspended center, the present invention reduces the effective support span to less than half of the traditional structure through the central spacer 202. This allows the primary tensile elastic members 203 to bear primarily tensile stress rather than bending stress, thus avoiding the plastic deformation of the metal material caused by repeated bending.

[0151] This innovative structural system of "central rigid support node + multi-directional elastic dispersion" not only solves the problem of weak support in the central area of traditional structures, but also achieves more uniform load distribution and longer-lasting elastic retention through the optimization of mechanical paths, thereby solving the problem that the central area of the existing ride support structure is prone to sinking due to insufficient support.

[0152] In this embodiment, each of the main tensile elastic members 203 connects the central gasket 202 to the respective corners of the support frame 201. This corner connection method fully utilizes the rigid support points of the frame to provide a more balanced force on the elastic support area, effectively preventing the central gasket 202 from shifting or tilting, and further improving the anti-sag capability.

[0153] In this embodiment, an elastic net 204 is provided above the central spacer 202 and each of the main tensile elastic members 203. The elastic net 204 covering the main tensile elastic members 203 not only disperses local pressure, preventing direct pressure from the human body on a single main tensile elastic member 203 and improving riding comfort, but also forms a double-layer elastic support structure with the central spacer 202, improving support performance.

[0154] Optionally, the elastic net 204 includes a plurality of longitudinal auxiliary tensile elastic members 2041 arranged parallel to the length direction of the support frame 201, and a plurality of transverse auxiliary tensile elastic members 2042 arranged parallel to the width direction of the support frame 201, wherein each of the auxiliary tensile elastic members is wrapped and fixed on the support frame 201 and spans the elastic support area.

[0155] The elastic net 204 is composed of longitudinal and transverse secondary tensile elastic members 2041 and 2042 interwoven to form a grid-like support surface. This orthogonal arrangement evenly distributes pressure from different directions, enhancing the integrity and stability of the support surface. The secondary tensile elastic members are wrapped around and fixed to the support frame 201, ensuring a tight connection between the elastic net 204 and the main structure, preventing displacement or loosening and ensuring a more durable and reliable support effect.

[0156] In this embodiment, the tensile strength of the primary tensile elastic member 203 is superior to that of the longitudinal secondary tensile elastic member 2041 and the transverse secondary tensile elastic member 2042. It can be understood that the primary tensile elastic member 203 has a superior tensile strength to the secondary tensile elastic members, forming a clearly defined mechanical system. The primary tensile elastic member 203 provides primary support, ensuring overall structural strength; the secondary tensile elastic members provide auxiliary cushioning, optimizing localized tactile feel. This differentiated design ensures sufficient support while preventing the elastic net 204 from being too rigid and affecting comfort, achieving a balanced combination of rigidity and flexibility.

[0157] For example, the primary tensile elastic member 203 can be a serpentine spring or a tension spring, while the longitudinal and transverse secondary tensile elastic members 2041 and 2042 can be elastic bands. The serpentine spring / tension spring provides high-strength, fatigue-resistant support, while the elastic band offers low cost and moderate elasticity, making it suitable for large-area installation. This combination balances performance and affordability, and the elastic band's flexibility reduces skin pressure, enhancing the user experience.

[0158] Optionally, the center gasket 202 can be a metal disc or an engineering plastic plate. Metal discs are strong and suitable for heavy-load applications, while engineering plastic plates are lightweight and corrosion-resistant, making them suitable for humid environments. Both materials ensure long-term, stable load-bearing performance for the center gasket 202, preventing deformation or breakage. Flexible material selection allows for a wider range of applications.

[0159] The elastic support member 2 provided in this embodiment has the following advantages:

[0160] ① Center gasket 202 + radial main tensile elastic member 203 structure: The rigid center gasket 202 directly bears the concentrated load, and the radial main tensile elastic member 203 disperses the pressure, solving the problem of subsidence caused by insufficient central support in traditional structures.

[0161] ② Short span tension-dominated design: The central gasket 202 shortens the support span, so that the main tensile elastic member 203 is mainly subjected to tension rather than bending stress, avoiding metal fatigue deformation and extending service life.

[0162] ③ Elastic net 204 covering design: An elastic net 204 is added above the main tensile elastic member 203 to disperse local pressure and form a double-layer support, thereby improving comfort and overall support performance.

[0163] ④ Differentiated performance of primary and secondary elastic members: The primary tensile elastic member 203 (such as a snake spring) has better tensile performance than the secondary tensile elastic member (such as an elastic band), achieving a balance between high-strength support and local flexible buffering.

[0164] Example 3

[0165] This embodiment provides an elastic support member that can improve the synchronization of the snake spring movement and thus enhance the support comfort. It can also be used as the elastic support member in Example 1 to further optimize the user experience.

[0166] See also Figure 4 and Figure 8 The elastic support member 2 provided in this embodiment includes:

[0167] A supporting frame 201, wherein the supporting frame 201 encloses and forms an elastic supporting area;

[0168] A plurality of serpentine springs 205, each of the serpentine springs 205 being fixedly disposed parallel to each other in the elastic support region;

[0169] A central support member 206 , which is perpendicular to each of the serpentine springs 205 and fixed below the center of each of the serpentine springs 205 through a connecting member 208 ;

[0170] An end distance limiting member 207, which is perpendicular to each of the serpentine springs 205 and fixed to the end position of each of the serpentine springs 205 through a connecting member 208;

[0171] The central support member 206 and the end distance limiting member 207 are used to limit the serpentine springs 205 from approaching or moving away from each other, and reduce the displacement deviation of the serpentine springs 205 in the up and down movement.

[0172] The upper support stud 402 is fixed to the bottom of the central support member 206 , and supports each of the serpentine springs 205 upward through the central support member 206 .

[0173] Optionally, the connecting member 208 is glue, a C-shaped snap sleeve, tape or solder.

[0174] The elastic support member 2 provided in this embodiment constrains the spacing and movement synchronization of the serpentine springs 205 through the central support member 206 and the end limit member 207, effectively suppressing the uncoordinated movement of each serpentine spring 205, ensuring that each serpentine spring 205 can be deformed up and down synchronously, and no lateral position offset will occur during the deformation process, thereby improving the comfort of the support and the user experience.

[0175] It should be noted that the linear drive mechanism mentioned in the present invention may be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, or a motor-screw linear module, and the rotary drive mechanism mentioned in the present invention may be a brushed motor, a brushless motor, or a rotary cylinder. The present invention does not limit the specific structural forms of the linear drive mechanism and the rotary drive mechanism.

[0176] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A spin buffer lifting and adjusting device, characterized in that: include: A lifting and adjusting mechanism (3), the lifting and adjusting mechanism (3) comprising a threaded member (301), a rotating seat (302) located above the threaded member (301) and provided with a rotation adjustment accommodating cavity (3021), and a rotation adjustment driving assembly (303) for driving the rotating seat (302) to rotate about a vertical axis to adjust the height position of the rotating seat (302); The spin buffer mechanism (4) comprises a follower lower stud (401) which is rotatably mounted in the rotation adjustment chamber (3021) around a vertical axis and moves up and down synchronously with the rotating seat (302), a supporting upper stud (402) which is spirally connected to the follower lower stud (401) and protrudes upward to the outside of the rotation adjustment chamber (3021), and a stud compression spring (403) located between the two studs to drive the supporting upper stud (402) to move upward relative to the follower lower stud (401).

2. The spin buffer lifting and adjusting device according to claim 1, characterized in that: A plurality of driven bosses (3022) arranged along a spiral line are fixedly provided on the circumferential surface of the rotating seat (302); The rotation drive assembly (303) comprises a driving gear (3031), a rotation drive mechanism (3032) for driving the driving gear (3031) to rotate, and a control device (3033) electrically connected to the rotation drive mechanism (3032); The driving gear (3031) is located on the side of the rotating seat (302) and engages with each driven boss (3022) in sequence when rotating, so that the rotating seat (302) drives the follower lower stud (401) to move up and down.

3. The spin buffer lifting and adjusting device according to claim 2, characterized in that: The lower end of the following lower stud (401) is rotatably mounted on the bottom of the rotary adjustment accommodating cavity (3021) via a rotary bearing (404), and the upper end of the following lower stud (401) is provided with a lower spiral portion (4011); The lower portion of the supporting upper stud (402) is provided with an upper spiral portion (4021) spirally connected to the lower spiral portion (4011).

4. The spin buffer lifting and adjusting device according to claim 3, characterized in that: The bottom surface of the upper spiral portion (4021) is provided with a spring limiting ring (4022) for the lower spiral portion (4011) to pass through; The stud compression spring (403) is sleeved on the lower spiral portion (4011); Furthermore, the upper end of the stud compression spring (403) abuts against the bottom surface of the spring limiting ring (4022), and the lower end of the stud compression spring (403) abuts against the top surface of the inner ring of the rotary bearing (404).

5. The spin buffer lifting and adjusting device according to claim 1, characterized in that: The threaded member (301) is fixedly connected to the rotating seat (302), or the threaded member (301) is threadedly connected to the rotating seat (302).

6. A piece of furniture, characterized in that: include: Furniture base (1); An elastic support member (2), the elastic support member (2) being located above the furniture base (1) and being used to provide upward elastic support to the human body; The self-spinning buffer lifting and adjusting device according to any one of claims 1 to 5, wherein the threaded member (301) of the self-spinning buffer lifting and adjusting device is installed on the furniture base (1), and the supporting upper stud (402) of the self-spinning buffer lifting and adjusting device is installed and fixed on the bottom of the elastic support member (2).

7. The furniture according to claim 6, characterized in that The elastic support member (2) comprises: A supporting frame (201), wherein the supporting frame (201) encloses and forms an elastic supporting area; a central gasket (202), the central gasket (202) being located at a central position of the elastic support area; A plurality of main tensile elastic members (203), each of the main tensile elastic members (203) being arranged around the central gasket (202) and connecting the central gasket (202) to the supporting frame (201).

8. The furniture according to claim 7, characterized in that Each of the main tensile elastic members (203) connects the central gasket (202) to each vertex position of the supporting frame (201); The elastic support member (2) further comprises a plurality of longitudinal auxiliary tensile elastic members (2041) arranged parallel to the length direction of the support frame (201), and a plurality of transverse auxiliary tensile elastic members (2042) arranged parallel to the width direction of the support frame (201). Wherein, each of the auxiliary tensile elastic members is wound and fixed on the supporting frame (201) and spans the elastic supporting area.

9. The furniture according to claim 8, characterized in that The main tensile elastic member (203) is a snake spring, and the longitudinal auxiliary tensile elastic member (2041) and the transverse auxiliary tensile elastic member (2042) are both elastic bands.

10. The furniture according to claim 6, characterized in that The elastic support member (2) comprises: A supporting frame (201), wherein the supporting frame (201) encloses and forms an elastic supporting area; A plurality of serpentine springs (205), each of the serpentine springs (205) being fixedly arranged in parallel with each other in the elastic support area; A central support member (206), the central support member (206) being perpendicular to each of the serpentine springs (205) and being fixed below the center position of each of the serpentine springs (205) through a connecting member (208); An end distance limiting member (207), the end distance limiting member (207) being perpendicular to each of the serpentine springs (205) and being fixed to an end position of each of the serpentine springs (205) via a connecting member (208); The central support member (206) and the end distance limiting member (207) are both used to limit the serpentine springs (205) from approaching or moving away from each other, and to reduce the displacement deviation of the up and down movement of each serpentine spring (205); The supporting upper stud (402) is fixedly mounted on the bottom of the central support member (206), and supports each of the serpentine springs (205) upwards through the central support member (206).

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