Lifting electric sitting posture corrector

Abstract

This patent provides a height-adjustable electric posture corrector, comprising: a correction table; a drive device for providing power for bidirectional rotation around a fixed axis; a transmission device connected to the drive device for converting the bidirectional rotational motion into synchronous reverse linear motion of a first moving part and a second moving part; and a telescopic device including a first link and a second link hinged to each other at their middle portions, the lower end of the first link being hinged to the first moving part and the upper end being hinged to the correction table, and the lower end of the second link being hinged to the second moving part and the upper end being hinged to the correction table; wherein, the drive device drives the first moving part and the second moving part to move towards or away from each other through the transmission device, thereby causing the telescopic device to retract or expand to raise or lower the correction table, providing a height-adjustable electric posture corrector with a simple structure, low cost, low energy consumption, and reliable operation.

Description

Technical Field

[0001] This patent relates to the field of posture correction technology, specifically to a height-adjustable electric posture corrector. Background Technology

[0002] With the increasing academic burden on teenagers and the sedentary lifestyle of adults, problems such as myopia and scoliosis caused by poor posture are becoming increasingly prominent. As a desktop device that provides real-time support for the chest and abdomen and forces the user to maintain proper posture, the electric posture corrector market has experienced rapid growth. The core component of an electric posture corrector is the "adjustment platform lifting mechanism," which creates an adjustable support surface between the user's chest, abdomen, or chin—any easily supported position—and the desktop, forcing the spine to maintain its physiological curve and visual distance. To adapt to different heights, desk and chair heights, and study / office scenarios, the adjustment platform needs to be positioned within a certain range. Therefore, a small, fast-responding, and self-locking lifting system is crucial to the overall performance of the device. Early products were mostly manually operated, cumbersome to operate, and prone to unstable positioning. In recent years, with the decrease in the cost of components such as low-reduction gearboxes and circuit boards, electric solutions have rapidly penetrated the market: one-button lifting via buttons or an app, with immediate power cut-off and self-locking upon release, achieving a convenient "press and stop" experience and significantly improving the user experience.

[0003] Existing multi-stage hinge or screw-nut mechanisms are generally composed of multiple hinges or screws, resulting in complex structures, numerous parts, and very high production and assembly costs. Furthermore, the large number of transmission stages leads to significant mechanical losses during transmission, greatly impacting power transmission efficiency. To achieve the same transmission power, the power of the power mechanism needs to be increased, resulting in increased energy consumption and significantly affecting battery life and operating costs. Therefore, there is an urgent need for a simple, low-cost, low-energy-consumption, and low-operating-cost electric posture corrector lifting mechanism to solve the technical problems of complex structures, numerous parts, high costs, high energy consumption, and short battery life in current electric posture corrector lifting mechanisms. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting electric posture corrector with a simple structure, few parts, convenient assembly, and low cost. It can significantly reduce energy consumption and extend battery life while ensuring a large stroke, high thrust, and self-locking at any position, thereby solving the technical problems of complex structure, high cost, and short battery life of existing products.

[0005] This patent provides the following technical solution:

[0006] A height-adjustable electric posture corrector includes: a correction table; a drive device for providing power for bidirectional rotation about a fixed axis; a transmission device connected to the drive device for converting the bidirectional rotational motion into synchronous reverse linear motion of a first moving part and a second moving part; and a telescopic device including a first link and a second link hinged to each other at their middle portions, the lower end of the first link being hinged to the first moving part and the upper end being hinged to the correction table, and the lower end of the second link being hinged to the second moving part and the upper end being hinged to the correction table; wherein the drive device drives the first moving part and the second moving part to move towards or away from each other through the transmission device, thereby causing the telescopic device to retract or expand to raise or lower the correction table.

[0007] Furthermore, the transmission device includes a drive screw, which is rotatably mounted on a fixed axis.

[0008] Furthermore, the first end of the drive screw is provided with a first thread, and the second end is provided with a second thread that has the opposite direction to the first thread.

[0009] Furthermore, the first movable seat is screwed into the first thread.

[0010] Furthermore, the second movable seat is screwed into the second thread.

[0011] Furthermore, when the drive screw rotates, the first moving seat and the second moving seat move synchronously towards or away from each other.

[0012] Furthermore, the first thread and the second thread have the same pitch and nominal diameter.

[0013] Furthermore, the areas of the first thread and the second thread are directly adjacent, or separated by a section of unthreaded smooth rod.

[0014] Furthermore, a slider shaft parallel to the drive screw is fixed inside the correction table.

[0015] Furthermore, a first slider and a second slider are slidably fitted onto both ends of the slider shaft, respectively.

[0016] Furthermore, the first slider and the second slider are respectively hinged to the upper ends of the first connecting rod and the second connecting rod.

[0017] Furthermore, the drive unit includes a motor and a gear set.

[0018] Furthermore, the gear set includes a motor gear mounted on the motor output shaft and a transmission gear meshing with the motor gear.

[0019] Furthermore, the transmission gear is fixedly connected to the drive screw to drive its rotation.

[0020] Furthermore, the first link and the second link are links of equal length.

[0021] Furthermore, the adjustable electric posture corrector also includes a control device.

[0022] Furthermore, the control device includes a circuit board, an up switch and a down switch disposed on the circuit board.

[0023] Furthermore, when the rise switch is triggered, the drive device rotates in the first direction, and the first moving seat and the second moving seat move synchronously towards each other to raise the correction table.

[0024] Furthermore, when the descent switch is triggered, the drive device rotates in the second direction, and the first moving seat and the second moving seat move synchronously in opposite directions to lower the correction table.

[0025] Furthermore, the control device also includes a power supply, which is a battery and / or an external power interface, for powering the drive unit.

[0026] Furthermore, the height-adjustable electric posture corrector also includes a base assembly.

[0027] Furthermore, the base assembly includes a first housing and a second housing.

[0028] Furthermore, the second housing is provided with mounting bases for mounting the drive unit, transmission unit, and telescopic unit.

[0029] Furthermore, the first housing can be engaged with the second housing to form a closed space.

[0030] Furthermore, the base assembly also includes a writing board.

[0031] Furthermore, the surface of the writing board is treated with an anti-slip coating.

[0032] This patent has the following beneficial effects:

[0033] The electric posture corrector provided in this patent utilizes a single drive screw coupled with oppositely helical threads at both ends to drive a pair of sliding seats in synchronous, counter-current linear motion. This linear motion is then converted into the vertical lifting motion of the correction table via a pair of telescopic linkages hinged together in the middle. This achieves significant technological advancements and multiple beneficial effects: First, it greatly simplifies the traditional multi-stage hinge or screw-nut mechanism, significantly reducing the number of core moving parts. This not only lowers material and manufacturing costs but also effectively improves production and assembly efficiency and enhances the overall reliability of the mechanism. Second, the direct transmission path and low mechanical loss significantly improve power transmission efficiency. Under the premise of achieving the same lifting power requirements, a smaller drive motor can be equipped, thereby reducing overall energy consumption, extending battery life, and reducing user operating costs. Third, the mechanism operates smoothly. Through the self-locking characteristics of the screw and nut and precise synchronous control, reliable positioning and smooth lifting of the correction table at any height are achieved, improving user experience and safety. In addition, the compact and adaptable design makes it possible to design products that are thinner and smaller.

[0034] In summary, this patent effectively solves a series of technical problems existing in the prior art, such as complex structure, numerous parts, high cost, high energy consumption and short battery life, and provides a solution for an electric posture corrector lifting mechanism that is simple in structure, low in cost, low in energy consumption and reliable in operation. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this patent, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this patent and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a three-dimensional schematic diagram of the lowering state of the correction platform of the electric posture corrector in this patent.

[0037] Figure 2 This is a side view of the lowered state of the correction platform of the electric posture corrector in this patent.

[0038] Figure 3 This is a top view of the lowered state of the correction platform of the electric posture corrector in this patent.

[0039] Figure 4 This is a top view and cross-sectional view along direction AA of the lowered state of the electric posture corrector in this patent.

[0040] Figure 5This is a side view of the lifting electric posture corrector platform in the raised state in this patent.

[0041] Figure 6 This is a top view of the lifting electric posture corrector platform in the raised state in this patent.

[0042] Figure 7 This is a schematic diagram of the top view and cross-sectional view along the BB direction of the lifting electric posture corrector platform in the rising state of this patent.

[0043] Figure 8 This is an exploded view of the base assembly in this patent;

[0044] Figure 9 This is a schematic diagram of the overall assembly of the drive device and transmission device in this patent;

[0045] Figure 10 This is an exploded view of the drive device and transmission device in this patent;

[0046] Figure 11 This is a schematic diagram of the overall assembly of the telescopic device in this patent;

[0047] Figure 12 This is a schematic diagram of the front view of the telescopic device in this patent;

[0048] Figure 13 This is an exploded view of the telescopic device in this patent.

[0049] Figure 14 This is an exploded view of the correction table in this patent.

[0050] Figure 15 This is a schematic diagram of the overall assembly of the correction table in this patent;

[0051] Figure 16 This is a schematic top view of the correction table in this patent;

[0052] Figure 17 This is a schematic cross-sectional view of the correction table in the EE direction in this patent.

[0053] Figure 18 This is a three-dimensional schematic diagram of the control device in this patent;

[0054] Figure 19 This is a three-dimensional schematic diagram of the drive device, transmission device, telescopic device and control device in the retracted state in this patent.

[0055] Figure 20 This is a front view of the drive device, transmission device, telescopic device and control device in the retracted state in this patent.

[0056] Figure 21This is a top view of the drive device, transmission device, telescopic device and control device in the retracted state in this patent.

[0057] Figure 22 This is a schematic cross-sectional view of the drive device, transmission device, telescopic device and control device in the retracted state in the FF direction of this patent.

[0058] Figure 23 This is a three-dimensional schematic diagram of the drive device, transmission device, telescopic device and control device in the unfolded state in this patent.

[0059] Figure 24 This is a front view of the drive device, transmission device, telescopic device and control device in the unfolded state of this patent.

[0060] Figure 25 This is a top view of the drive device, transmission device, telescopic device and control device in the unfolded state of this patent.

[0061] Figure 26 This is a cross-sectional view of the drive device, transmission device, telescopic device, and control device in the extended state of this patent.

[0062] The reference numerals in the attached figures are explained as follows:

[0063] Correction table: 100

[0064] First shell: 110

[0065] Second shell: 120

[0066] Slider axis: 130

[0067] Pad liner: 140

[0068] slider shaft hole: 141

[0069] Spacer block: 150

[0070] First slider: 160

[0071] Second slider: 170

[0072] Telescopic device: 200

[0073] First link: 210

[0074] Second link: 220

[0075] Linkage hinge: 230

[0076] Base assembly: 300

[0077] First cover: 310

[0078] Second cover: 320

[0079] Screw seat: 321

[0080] Power socket: 322

[0081] Motor mount: 323

[0082] PCB socket: 324

[0083] Writing board: 330

[0084] Motor: 410

[0085] Wire: 420

[0086] Motor gear: 430

[0087] Transmission gear: 440

[0088] Drive screw: 510

[0089] First thread: 511

[0090] Second thread: 512

[0091] First mobile seat: 530

[0092] Second movable seat: 540

[0093] Control components: 700

[0094] PCB board: 710

[0095] Upward switch: 711

[0096] Down switch: 712

[0097] Power supply: 720

[0098] First direction: M

[0099] Second direction: N Detailed Implementation

[0100] The detailed features and advantages of this application are described below in the specific embodiments. The content of this description is sufficient to enable any person skilled in the art to understand the technical content of this application and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this application.

[0101] The present invention will now be described with reference to the accompanying drawings, in which similar reference numerals denote similar elements. While specific structures and arrangements are discussed, it should be understood that this is done merely for illustrative purposes. Those skilled in the art will recognize that other structures and arrangements can be used without departing from the spirit and scope of the present invention. It will be apparent to those skilled in the art that the present invention can also be used in a variety of other applications.

[0102] In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined to have the following meanings:

[0103] The singular forms “a” and “the” include their corresponding plural forms. “At least one” means one or more, and “more” means two or more. “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can be expressed as: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0104] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0105] In the description of this embodiment, it should be noted that the terms "upper," "lower," "inner," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only used for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "upstream" and "downstream" mentioned in the specification are defined according to the material transfer sequence in the production process, used to describe the relative positional relationship of each module in the processing sequence (e.g., the output of the "upstream" module is the input of the "downstream" module), and do not specifically refer to their absolute spatial orientation. The scope of protection of this utility model is defined by the appended claims and is not limited by the absolute spatial meaning of the aforementioned directional terms.

[0106] Unless otherwise indicated, the following abbreviations have the following meanings, and any other abbreviations used herein but not defined have their generally accepted standard meanings:

[0107] All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.

[0108] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0109] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.

[0110] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0111] See Figures 1 to 7 This patent provides an electric posture corrector, comprising a correction platform 100, a telescopic device 200, a base assembly 300, a drive device, a transmission device, and a control device 700. The control device 700 controls the start and stop of the drive device. The drive device transmits power to the transmission device, which converts rotational motion into horizontal, synchronous, reverse linear motion. This linear motion drives the telescopic device 200 to retract or extend, ultimately causing the correction platform 100 to rise and fall vertically.

[0112] See Figure 9 and Figure 10 This is a schematic diagram illustrating the cooperation between the drive device and the transmission device. The drive device includes a motor 410, a wire 420, a motor gear 430, and a transmission gear 440. Specifically, in this embodiment, the motor is a small DC geared motor. The motor 410 is electrically connected to the control device 700 via the wire 420 and obtains power to start and stop. The motor gear 430 is fixed on the output shaft of the motor 410.

[0113] The transmission device includes a drive screw 510, which is supported in a screw seat 321 of the second cover 320 by journals at both ends. The drive screw 510 has a first thread 511 and a second thread 512 with opposite directions of rotation. The two threaded areas can be directly adjacent or separated by a smooth section. A transmission gear 440 is fixedly mounted at the end of the drive screw 510 and meshes with a motor gear 430 to form a gear pair. The first movable seat 530 and the second movable seat 540 have internal threads that can be screwed onto the first thread 511 and the second thread 512, respectively.

[0114] When the motor 410 is energized, the drive screw 510 is driven to rotate around its axis through the meshing of the motor gear 430 and the transmission gear 440. Since the first moving seat 530 and the second moving seat 540 are screwed onto threads with opposite directions of rotation, the rotation of the drive screw forces the first moving seat 530 and the second moving seat 540 to make synchronous, opposite-direction linear movements (i.e., moving towards or away from each other) along the axis of the drive screw 510. This transmission structure directly converts a single rotary input into two precisely synchronized linear outputs, resulting in a short transmission chain, high efficiency, and a very simple structure. Alternatively, gear transmission can be achieved by belt transmission or worm gear transmission, etc.

[0115] See Figures 11 to 13 The telescopic device 200 is a mechanism that can convert horizontal linear motion into vertical lifting motion. This device mainly consists of a first connecting rod 210 and a second connecting rod 220, which are connecting rods of equal length.

[0116] The first link 210 and the second link 220 are hinged together by a central link hinge 230, forming an "X" shape. The lower end of the first link 210 is hinged to the first movable seat 530, and the lower end of the second link 220 is hinged to the second movable seat 540. The upper ends of the first link 210 and the second link 220 are respectively hinged to the correction table 100.

[0117] When the first movable seat 530 and the second movable seat 540 move towards each other under the drive of the transmission device, they push the lower ends of the first connecting rod 210 and the second connecting rod 220 together. Because the middle of the connecting rod is constrained by the hinge 230, the entire "X"-shaped structure extends upwards, thereby lifting the straightening table 100. Conversely, when the two nuts move in opposite directions, the connecting rod assembly retracts downwards, lowering the straightening table 100. This mechanism achieves stable and reliable lifting using only one pair of connecting rods. Compared to multi-stage hinges, the number of parts is significantly reduced, mechanical losses are lowered, and rigidity and lifespan are improved.

[0118] The lower ends of the first connecting rod 210 and the second connecting rod 220, and the top ends of the first movable seat 530 and the second movable seat 540, are respectively provided with mutually cooperating hinge structures. Specifically, the hinge structure can be implemented in various forms known in the mechanical field: for example, a shaft hole can be provided at the lower end of the connecting rod, and a corresponding cylindrical boss can be provided on the movable seat, with the boss embedded in the shaft hole to form a rotating pair; or, conversely, a boss can be provided at the lower end of the connecting rod, and a shaft hole can be provided on the movable seat; in addition, an independent hinge pin can be used to pass through the corresponding through holes on the lower end of the connecting rod and the movable seat to achieve the hinge between the two. Those skilled in the art should understand that any hinge structure that can realize relative rotation between the connecting rod and the movable seat, regardless of its specific form as a "shaft and hole" fit or other equivalent structure, as long as its function is to realize the rotational connection between the lower end of the connecting rod and the movable seat, falls within the protection scope of this patent.

[0119] Furthermore, to optimize structural space and prevent motion interference, the rods of the first link 210 and the second link 220 do not necessarily need to be simple straight rods with uniform cross-sections. In its preferred embodiment, see [reference needed]. Figure 13 The first link 210 and the second link 220 can be designed with a stepped or irregular profile along their length. For example, the area near the central hinge point 230 of the first link 210 and the second link 220 can be designed to be thinner or narrower than other parts, thereby providing clearance for the other link when the telescopic device 200 is retracted to its lowest state, thus avoiding structural collision. Such profile variations made on the main body of the first link 210 and the second link 220 for the purpose of avoiding motion interference or optimizing spatial layout, such as using recesses, bends, or stepped designs, should be considered within the design concept of this patent.

[0120] See Figure 8 The base assembly 300 forms the basic support structure of the entire orthodontic device, mainly including a first cover 310, a second cover 20, and a writing board 330. The second cover 320 integrates mounting bases for accommodating and supporting the drive device, transmission device, and control device components. Specifically: a screw seat 321 rotatably supports the drive screw 510; a motor seat 323 securely mounts the motor 410; a PCB seat 324 mounts the PCB board 710 of the control device 700; and a power supply seat 322 accommodates the power supply 720 (such as a battery). The first cover 310 and the second cover 320 are fastened together by screws or clips, forming a stable and well-utilized enclosed enclosure that protects the internal mechanisms and maintains a clean product appearance.

[0121] See Figures 14 to 17The correction table 100 is the part that directly interacts with the user, directly contacting the user's chest and abdomen to constrain the user's sitting posture. In this embodiment, the correction table 100 includes a first housing 110 and a second housing 120. The first housing 110 and the second housing 120 are fixedly connected by screws, clips, or ultrasonic welding to form a robust and lightweight box-shaped structure with an internal cavity. These two housings, as the outermost layers, constitute the basic shape of the correction table and provide a mounting base and protection for its internal functional components. Inside the cavity, there is a slider shaft 130, which is a rigid shaft with both ends fixed in the slider shaft holes of the inner liner. The axis of the slider shaft 130 is parallel to the axis of the drive screw 510 in the base assembly. The first slider 160 and the second slider 170 are slidably sleeved on the slider shaft 130 and can slide freely along the axial direction of the slider shaft 130. Both the first slider 160 and the second slider 170 are provided with boss shaft hole structures for hinged connection with the upper ends of the first connecting rod 210 and the second connecting rod 220 of the telescopic device 200. A pad 150 is disposed between the first housing 110 and the inner liner 140, its main function being to fill the space, adjust the overall thickness, and strengthen the structural rigidity. The pad 150 has reserved clearance space to ensure it does not interfere with the normal sliding of the first slider 160 and the second slider 170. The upper ends of the first connecting rod 210 and the second connecting rod 220 of the telescopic device 200 are hinged through the boss shaft hole structures on the first slider 160 and the second slider 170, respectively. The first slider 160 and the second slider 170 serve as the power interface between the straightening table 100 and the telescopic device 200, transmitting the thrust or pull force of the connecting rods to the straightening table. The core advantage of this structure lies in its automatic lateral displacement compensation mechanism. When the telescopic device 200 moves, the upper ends of the first link 210 and the second link 220 force the first slider 160 and the second slider 170 to slide synchronously towards or away from each other on the slider shaft 130. This design can absorb and compensate for the horizontal displacement caused by the movement of the links, thereby ensuring that the correction table 100 only moves vertically during the entire lifting process, without lateral swaying or jamming, achieving a smooth and reliable lifting experience.

[0122] Similar to the hinge between the first connecting rod 210 and the second connecting rod 220, and between the first movable seat 530 and the second movable seat 540, the connection points between the first connecting rod 210 and the second connecting rod 220 and the first slider 160 and the second slider 170 are also respectively provided with mutually cooperating hinge structures. Specifically, this hinge structure can be implemented in various forms known in the mechanical field: for example, a shaft hole can be provided at the lower end of the connecting rod, and corresponding cylindrical bosses can be provided on the first slider 160 and the second slider 170, with the bosses embedded in the shaft hole to form a rotating pair; or, conversely, a boss can be provided at the lower end of the connecting rod, and a shaft hole can be provided on the slider; in addition, an independent hinge pin can be used to pass through the corresponding through holes on the lower end of the connecting rod and the movable seat to achieve the hinge between the two. Those skilled in the art should understand that any hinge structure that can realize relative rotation between the two connecting rods and the two sliders, regardless of its specific form as a "shaft and hole" fit or other equivalent structure, as long as its function is to realize the rotational connection between the connecting rods and the two sliders, falls within the protection scope of this patent.

[0123] Specifically, to balance strength and comfort, the surface of the first shell that comes into contact with the human body is made of elastic materials, such as silicone or memory foam, to achieve a combination of "hard support and soft contact" and improve comfort.

[0124] See Figure 18 The control device 700 includes a PCB board 710 and a power supply 720. The PCB board 710 integrates a control circuit, an up switch 711, and a down switch 712. Optionally, the power supply 720 can be a rechargeable battery or a DC power interface to power the entire system. When the user presses and holds the up switch 711, the control circuit drives the motor 410 to rotate in the first direction M, ultimately raising the correction table 100. When the user presses and holds the down switch 712, the motor 410 rotates in the first direction N, lowering the correction table 100. Releasing the switch immediately stops the motor 410. Due to the self-locking characteristic of the screw nut, the correction table 100 can stably remain in any intermediate position.

[0125] Work process

[0126] In the electric posture corrector of this invention, the switching process of the working state is as follows:

[0127] The lowering process of the correction table:

[0128] See Figures 19 to 22 This is the lowered state of the correction table. At this time, the first movable seat 530 and the second movable seat 540 are located at the farthest position on the drive screw 510. The telescopic device 200, which is hinged to it, is in the retracted state, the angle formed by the first connecting rod 210 and the second connecting rod 220 is small, and the overall height is at its lowest, thereby driving the correction table 100 to the lowest position of its stroke.

[0129] The corrector table rising process: When the user presses the rise switch 711 on the control device 700, the following sequence of actions is triggered: the control circuit is turned on, and electrical energy is transmitted from the power supply 720 to the motor 410 via the PCB board 710; the motor 410 starts to rotate in a preset "rising" direction, such as the first direction M; the motor gear 430 on the motor output shaft rotates accordingly, and drives the transmission gear 440 meshing with it to rotate; the transmission gear 440 drives the drive screw 510 to rotate around its axis; since the first thread 511 and the second thread 512 at both ends of the drive screw 510 rotate in opposite directions, the rotating drive screw will force the first moving seat 530 and the second moving seat 540 screwed on it to move synchronously towards each other along the screw axis, that is, move towards the middle at the same time; the opposite movement of the first moving seat 530 and the second moving seat 540 pushes the lower ends of the first connecting rod 210 and the second connecting rod 220 hinged to them to move towards each other synchronously. Because the two connecting rods are mutually constrained at the middle by connecting rod hinge 230, the closing action of the lower ends forces the entire "X"-shaped telescopic device 200 to extend and close upwards. The extension of the telescopic device 200, through its hinged top with the first slider 160 and the second slider 170, lifts the straightening table 100 upwards. During this process, the first slider 160 and the second slider 170 slide towards each other on the slider shaft 130, automatically and precisely compensating for the lateral displacement generated at the top of the connecting rods, ensuring that the straightening table 100 only undergoes a smooth vertical upward movement without lateral swaying or jamming. When the straightening table 100 reaches the desired height, the user releases the lifting switch 711, and the motor 410 is de-energized and stops. At this time, the inherent mechanical self-locking characteristic of the screw-moving seat mechanism, because the thread helix angle is less than the friction angle, prevents the moving seat from moving in the opposite direction under the weight of the straightening table, thus reliably suspending the straightening table 100 at any intermediate height. See also... Figures 23 to 26 This is the fully deployed and raised state of the correction table.

[0130] The descent process:

[0131] The descent process is the reverse of the ascent process, and its logic is completely symmetrical: when the user presses the descent switch 712, the motor 410 rotates in the opposite direction, for example, the second direction. Through gear transmission, the drive screw 510 rotates in the opposite direction. The reverse rotation of the drive screw 510 drives the first moving seat 530 and the second moving seat 540 to move synchronously in opposite directions, i.e., to separate at both ends simultaneously. The opposite movement of the two moving seats pulls the lower ends of the two connecting rods apart, forcing the telescopic device 200 to retract downwards. The retraction of the telescopic device 200, through the hinge point, pulls the first slider 160 and the second slider 170 to slide in opposite directions on the slider shaft 130, causing the straightening table 100 to descend smoothly and vertically. Releasing the descent switch stops the motor, the mechanism self-locks, and the straightening table remains stable at the new, lower position.

[0132] Industrial applicability:

[0133] The electric posture corrector provided in this patent utilizes a single drive screw coupled with oppositely helical threads at both ends to drive a pair of nuts in synchronous, counter-current linear motion. This linear motion is then converted into the vertical lifting motion of the correction platform via a pair of telescopic linkages hinged together in the middle. This achieves significant technological advancements and multiple beneficial effects: First, it greatly simplifies the traditional multi-stage hinge or screw-nut mechanism, significantly reducing the number of core moving parts. This not only lowers material and manufacturing costs but also effectively improves production and assembly efficiency and enhances the overall reliability of the mechanism. Second, the direct transmission path and low mechanical loss significantly improve power transmission efficiency. Under the premise of achieving the same lifting power requirements, a smaller drive motor can be equipped, thereby reducing overall energy consumption, extending battery life, and reducing user operating costs. Third, the mechanism operates smoothly. Through the self-locking characteristics of the screw and nuts and precise synchronous control, reliable positioning and smooth lifting of the correction platform at any height are achieved, improving user experience and safety. In addition, the compact and adaptable design makes it possible to design products that are thinner and smaller.

[0134] In summary, this patent effectively solves a series of technical problems existing in the prior art, such as complex structure, numerous parts, high cost, high energy consumption and short battery life, and provides a solution for an electric posture corrector lifting mechanism that is simple in structure, low in cost, low in energy consumption and reliable in operation.

[0135] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0136] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0137] In this specification, references to "an embodiment" or "a specific implementation" mean that a particular feature, structure, or characteristic described in connection with that embodiment / specific implementation is included in at least one embodiment / specific implementation of the present invention.

[0138] Therefore, the phrase "in one embodiment / specification" appearing in various places in this specification does not necessarily refer to the same embodiment / setting, but rather to possible. Furthermore, specific features, structures, or characteristics may be combined in one or more embodiments / settings in any suitable manner, as may be understood by those skilled in the art from this disclosure.

[0139] Similarly, it should be understood that in the above description of exemplary embodiments / specific implementations of this utility model, various features of this utility model are sometimes combined in a single embodiment / specific implementation or its figures and description, with the aim of simplifying the disclosure and aiding in the understanding of one or more of the various utility aspects. However, except for expressly stated instructions to the contrary or obvious technical contradictions or exclusions, the method of description in this patent should not be construed as reflecting an intention that the claimed utility model claims more features than are expressly stated in each claim. Rather, the utility aspect reflected in the claims lies in not all features of a single foregoing disclosed embodiment / specific implementation. Therefore, the claims following the detailed description are expressly incorporated herein by reference, and each claim exists independently as a separate embodiment / specific implementation of this utility model.

[0140] Furthermore, while some embodiments / specific implementations described herein include, but are not limited to, other features included in other embodiments / specific implementations, combinations of features from different embodiments / specific implementations are intended to fall within the scope of this invention and form different embodiments / specific implementations, as will be understood by those skilled in the art. For example, in the following claims, any embodiment / specific implementation of any claim can be used in any combination.

[0141] The terms and expressions used in this specification are for illustrative purposes and not for limitation. The use of these terms and expressions is not intended to exclude any equivalents of the features or portions thereof shown and described, but rather to allow for various modifications that may be made within the scope of the claims of this invention.

[0142] Therefore, it should be understood that although the present invention has been specifically disclosed through preferred embodiments, exemplary embodiments and optional features, those skilled in the art may take variations or modifications of the concepts disclosed in this specification, and such variations and modifications are therefore considered to be within the scope of the present invention as defined by the appended claims.

[0143] The specific embodiments given in this specification are examples of useful implementations of this utility model. It will be apparent to those skilled in the art that this utility model can be implemented using many variations of the equipment, equipment components, and method steps disclosed in this specification.

[0144] The foregoing description of specific embodiments has fully disclosed the general features of this invention, enabling others to easily modify and / or adapt such embodiments for various applications by applying knowledge within the scope of the art, without excessive experimentation or deviation from the general concept of this invention. Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.

[0145] Furthermore, the scope of this invention should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents.

Claims

1. A height-adjustable electric posture corrector, characterized in that, include: Correction table; A drive unit for providing power for bidirectional rotation about a fixed axis; A transmission device, connected to the drive device, is used to convert the bidirectional rotational motion into synchronous reverse linear motion of the first moving seat and the second moving seat. The telescopic device includes a first link and a second link hinged to each other at the middle. The lower end of the first link is hinged to the first movable seat, the upper end of the first link is hinged to the straightening table, the lower end of the second link is hinged to the second movable seat, and the upper end of the second link is hinged to the straightening table. The driving device drives the first movable seat and the second movable seat to move towards or away from each other through the transmission device, thereby causing the telescopic device to contract or expand to raise or lower the correction table.

2. The electric posture corrector with height adjustment according to claim 1, characterized in that, The transmission device includes: - Drive screw: Rotatably mounted on the fixed axis, with a first thread at the first end and a second thread at the second end that has the opposite direction to the first thread; -The first movable seat is screwed into the first thread; - The second movable seat is screwed into the second thread; When the drive screw rotates, the first movable seat and the second movable seat move synchronously towards or away from each other.

3. The electric posture corrector with height adjustment according to claim 2, characterized in that, The first thread and the second thread have the same pitch and nominal diameter, and the areas of the first thread and the second thread are directly adjacent or separated by a smooth, unthreaded section.

4. The electric posture corrector with height adjustment according to claim 2, characterized in that, The correction table is fixed with a slider shaft parallel to the drive screw. The two ends of the slider shaft are respectively slidably fitted with a first slider and a second slider. The first slider and the second slider are respectively hinged to the upper ends of the first connecting rod and the second connecting rod.

5. The electric posture corrector with height adjustment according to claim 4, characterized in that, The driving device includes a motor and a gear set, wherein the gear set includes a motor gear disposed on the output shaft of the motor and a transmission gear meshing with the motor gear, and the transmission gear is fixedly connected to the driving screw to drive it to rotate.

6. The electric posture corrector with height adjustment according to claim 5, characterized in that, The first link and the second link are rods of equal length.

7. The lift power sit-and-stand corrector according to claim 6, wherein, Also includes: Control device: includes a circuit board, an up switch and a down switch disposed on the circuit board, wherein: When the rise switch is triggered, the drive device rotates in the first direction, and the first moving seat and the second moving seat move synchronously towards each other to raise the correction table; When the descent switch is triggered, the drive device rotates in the second direction, and the first moving seat and the second moving seat move synchronously in opposite directions to lower the correction table.

8. The electric posture corrector with height adjustment according to claim 7, characterized in that, The control device also includes a power source, which is a battery and / or an external power interface, for supplying power to the drive device.

9. The lift power sit-and-stand corrector according to any one of claims 1-8, wherein, Also includes: The base assembly includes a first housing and a second housing; in - The second housing is provided with a mounting base for mounting the drive device, transmission device and telescopic device; - The first housing can be fastened with the second housing to form a closed space.

10. The electric posture corrector with height adjustment according to claim 9, characterized in that, The base assembly also includes a writing board, the upper surface of which is treated with an anti-slip coating.

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