An adjustable posture corrector
By using a rotary limiting mechanism that integrates the elastic arm with the housing through injection molding, the problems of complex structure and poor stability of existing posture correctors are solved, achieving simple and reliable multi-level adjustment and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI M&G STATIONERY INC
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-21
AI Technical Summary
The existing posture corrector's rotation limit mechanism has a complex structure, redundant parts, and is difficult to assemble. The springs are prone to fatigue and wear, and the wear of the limit block leads to a decrease in the sense of shifting, affecting stability and service life. In addition, the processing cost is high.
The rotating limiting mechanism, which integrates the elastic arm and the housing through injection molding, achieves multi-position angle adjustment by radially engaging the elastic element with the wedge-shaped groove on the outer circumference of the rotating shaft disc. This simplifies the structure, reduces costs, and provides a clear sense of position and stability.
It achieves simple and reliable multi-level adjustment, reduces mold and assembly costs, provides good feedback, is easy to operate and highly stable, and avoids the problems of many parts, laborious assembly and easy wear in traditional designs.
Smart Images
Figure CN224522649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stationery and document parts, and in particular to an adjustable posture corrector. Background Technology
[0002] In recent years, with the popularization of healthy office and learning concepts, desktop posture correctors have gradually become mainstream products in the market. Their core component, the chest guard module, is connected to the panel via a rotating structure. This design allows users to adjust the chest guard angle according to their body type, usage habits, and usage scenarios. However, existing rotating limiting mechanisms still have some key technical defects, hindering the user experience and market promotion of the products.
[0003] Currently, most posture correctors use a rotary limiting mechanism consisting of a spring-driven limiting block and a rotating shaft groove. This design suffers from several problems: complex structure and redundant parts; difficult assembly, requiring pre-compression of the spring and resulting in low automation; fatigue relaxation of the spring during long-term rotation, and wear of the limiting block and groove due to repeated impacts; a decrease in engagement depth leads to a significant reduction in gear shifting sensitivity, even resulting in "over-shifting" or "dropping," directly affecting posture stability and posing safety hazards; with prolonged use, spring force decay or limiting block wear can cause blurred shifting or even complete failure, severely impacting product lifespan; to ensure limiting accuracy, existing structures have strict tolerances for the machining depth of the rotating shaft groove, increasing mold costs and product defect rates. These problems make it difficult for existing posture correctors to balance ease of operation and structural reliability, necessitating an innovative rotary limiting damping solution. Utility Model Content
[0004] The purpose of this utility model is to provide an adjustable posture corrector. Through the innovative structural design of the rotating limiting mechanism, it can achieve multi-level angle adjustment. Furthermore, this structure has advantages such as easy operation, clear gear positions, high durability, simple assembly, and low production cost.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] An adjustable posture corrector includes: a panel with a pivot member disposed near the human body; and a limiting module pivotally connected to the pivot member via a rotating member, the limiting module being able to rotate relative to the panel in a front-back motion, wherein the rotating member includes a first part and a second part that can be interlocked to form a closed receiving cavity covering the pivot member.
[0007] Furthermore, the first part is provided with an elastic element in the radial direction, and the elastic element has a degree of freedom of deformation in the radial direction.
[0008] Furthermore, the pivot component is provided with an anchoring structure along the circumference, and the surface of the elastic component is provided with a positioning structure that is complementary to the shape of the anchoring structure, together forming a gear limit.
[0009] Furthermore, the limiting module also includes a telescopic component and a stop component that are fixedly connected. The stop component has an ergonomic curved surface on the side closer to the human body, and the angle between the axis of the telescopic component and the panel surface is adjustable.
[0010] Furthermore, the anchoring structure is a groove.
[0011] Furthermore, the positioning structure is a protrusion.
[0012] Furthermore, the grooves and protrusions can be either hemispherical or wedge-shaped.
[0013] Furthermore, the rotating shaft has four grooves evenly distributed along its outer circumference.
[0014] Furthermore, the elastic element is an elastic arm structure, and the elastic element is integrally formed with the inner wall of the first part.
[0015] Furthermore, the bottom of the panel is provided with a flip-up table edge fastener, which has a first state and a second state.
[0016] Furthermore, in the first state, the table edge fastener is stored inside the panel;
[0017] Furthermore, in the second state, the table edge fastener extends out and abuts against the table edge.
[0018] This invention provides an adjustable posture corrector, which has the following advantages over the prior art:
[0019] In summary, this utility model provides an adjustable posture corrector, which has the following advantages over the prior art: by integrally injection molding the elastic arm and the shell, redundant parts such as traditional springs and limiting blocks are eliminated, significantly reducing mold and assembly costs; the radial engagement design of the elastic element and the wedge-shaped groove on the outer periphery of the rotating shaft disc provides reliable gear engagement and good feedback; the groove number design enables precise positioning, and users only need a small amount of force to switch, making operation easy and with a clear feel; the rotating part adopts a two-half shell snap-fit structure, which can be disassembled and assembled without tools; the table edge fixing part is stored in the bottom of the panel in the form of a flip plate, which forms a rigid abutment with the table edge in the thickness direction after unfolding, preventing back-and-forth displacement and further improving the stability of use.
[0020] The overall structure is simple, reliable, and low-cost, effectively overcoming the shortcomings of existing technologies such as numerous parts, complicated assembly, laborious operation, poor feel, and easy wear. Attached Figure Description
[0021] The above-described technical content of this utility model and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution. In the drawings, the same reference numerals represent the same or similar elements.
[0022] Figure 1 This is a schematic diagram of the adjustable posture corrector.
[0023] Figure 2 This is a schematic diagram of the front view of an adjustable posture corrector;
[0024] Figure 3 This is a three-dimensional schematic diagram of the panel;
[0025] Figure 4 This is a schematic diagram of the panel cross-section;
[0026] Figure 5 This is a top view of the panel;
[0027] Figure 6 This is a schematic diagram of the first part;
[0028] Figure 7 This is a schematic diagram of the top view of the first part;
[0029] Figure 8 for Figure 7 CC-direction sectional view;
[0030] Figure 9 This is a schematic diagram of the deformation of an elastic element;
[0031] Figure 10 This is a schematic diagram of the assembly of the rotating component and the panel;
[0032] Figure 11 This is a schematic diagram of an adjustable posture corrector viewed from below.
[0033] Figure 12 for Figure 11 Enlarged view of a specific area;
[0034] Figure 13 for Figure 11 CC direction diagram;
[0035] Figure 14 for Figure 13 Enlarged view of a specific area;
[0036] Figure 15 This is a schematic diagram of the adjustable posture corrector flipping.
[0037] Figure 16 for Figure 15 Sectional view;
[0038] Figure 17 This is a schematic diagram of the adjustable posture corrector flipping.
[0039] Figure 18 for Figure 17 Enlarged view of a section section.
[0040] The reference numerals in the attached figures are explained as follows:
[0041] Panel 1
[0042] Shaft 2
[0043] Circular structure 21
[0044] Anchoring structure 22
[0045] Rotating component 3
[0046] Part 1, Section 4
[0047] Elastic element 41
[0048] Positioning structure 42
[0049] First clearance hole 43
[0050] Free end 44
[0051] Part 2, 5
[0052] Telescopic component 6
[0053] Attachment 7
[0054] Table edge fastener 8 Detailed Implementation
[0055] The detailed features and advantages of this utility model are described below in specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this utility model and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, those skilled in the art can easily understand the related objectives and advantages of this utility model.
[0056] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0057] In the description of this embodiment, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship defined by the coordinate reference of the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 utility model.
[0058] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0059] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0060] See Figures 3-5 Panel 1 serves as the main support structure of the posture corrector, providing a stable writing surface and integrally extending outwards from its side closest to the human body, forming two coaxial and symmetrical horizontal pivots 2. (See also...) Figures 3-4 The rotating shaft 2 has a two-axis symmetrical structure, with a disc structure 21 at each end of the two axes. Anchoring structures 22 are located on the outer periphery of the disc structures. The anchoring structures 22 can be continuous grooves, continuous protrusions, or a mixture of alternating grooves and protrusions. Furthermore, the anchoring structures have various selectable contours, such as arcs, hemispheres, or wedges. In this embodiment, four wedge-shaped grooves are evenly spaced on the outer periphery of the disc, and the groove dimensions match the positioning structure of the first part. This allows the positioning structure to sequentially engage or disengage from the anchoring structure as the rotating component rotates around the rotating shaft, creating a clear sense of engagement and stable damping holding force.
[0061] Preferably, the panel surface uses a relatively rough material to provide moderate frictional resistance and prevent the paper from slipping. The base adopts a honeycomb structure with multiple reinforcing ribs, combining lightweight design with strength requirements.
[0062] The table edge fastener 8 is used to stably fix the posture corrector to the table edge, ensuring that it does not shift or wobble during use. The table edge fastener has a retractable design and two states: In the first state, see... Figure 10 The table edge fastener is neatly stored at the bottom of the panel, flush with the bottom surface. Second state: See below. Figure 1 The table edge fixing component extends from the bottom of the panel, forming a protrusion. During use, the posture corrector abuts against the tabletop along its thickness, effectively limiting its forward / backward displacement or wobbling. Optionally, the table edge fixing component has a flip-up structure, which can be switched with the panel through various methods such as hinge, magnetic attraction, snap-fit, interference fit, and sliding; alternatively, the table edge fixing component can also adopt a multi-end folding design. In this invention, it is preferably hinged to the bottom of the panel via a hinge, allowing for a 0-90° rotation to switch between the first and second states.
[0063] Preferably, anti-slip textures or anti-slip silicone pads are provided on the working surface of the table edge fastener to enhance friction with the table edge.
[0064] See Figures 6-8The first part 4 is an integrally injection-molded "D"-shaped open semi-shell. An elastic element 41 is integrally provided on the radial inner side of the first part 4. The elastic element 41 can clamp the disc structure, and a positioning structure 42 is provided at the contact position between the elastic element 41 and the disc structure. In this embodiment, the positioning structure 42 is a wedge-shaped protrusion, and its geometric dimensions correspond one-to-one with the wedge-shaped grooves on the outer periphery of the rotating shaft disc, thereby generating a stable gear holding force.
[0065] Specifically, the elastic element is an arc-shaped elastic arm structure, with four elastic elements arranged symmetrically at the center. Each pair of elastic elements clamps the disc structure at a 180° angle.
[0066] Specifically, the first part has a semi-circular first clearance hole 43 on its end face. After being spliced with the second part, the second part has a mirrored second clearance hole (not shown in the figure). The two parts form a complete circular hole, which allows the rotating shaft to make room and rotate freely. The end of the elastic element 41 is disconnected from the inner wall of the rotating element 3 to form a free end 44. The elastic element 41 constitutes a cantilever structure, which provides more allowance for elastic deformation and prevents breakage.
[0067] See Figure 10 , Figure 14 The second part 5 is another half of the shell that can be complementary and snapped together with the first part 4. Together with the first part 4, it forms a complete rotating part 3. The second part 5 is a "D"-shaped half-shell that is a mirror image of the first part 4. The radius, axial length, etc. of the second part 5 are all equal to those of the first part 4, ensuring that a cylindrical cavity is formed after snapping together.
[0068] Optionally, any known detachable method can be used between the first part 4 and the second part 5. For example, a hook-and-window fastening method can be used on their mating surfaces; permanent magnets or iron plates can be embedded in corresponding positions of the first part 4 and the second part 5 for magnetic positioning; a ring of elastic buckles can be provided on their mating surfaces for quick fastening using material rebound; self-locking can also be achieved through an interference fit of annular ribs and grooves; in addition, screws can be used as an auxiliary method in scenarios requiring frequent disassembly and assembly to ensure reliable connection and easy maintenance. Regardless of the method used, the shifting function between the rotating part 3 and the rotating shaft part 11 will not be affected.
[0069] It is easy to understand that the number and distribution of anchoring structures on the outer periphery of the rotating shaft disc directly determine the stable angular position of the chest stop. In this embodiment, four wedge-shaped grooves are evenly spaced on the outer periphery of the disc, spaced 90° apart. Therefore, when the rotating component rotates around the rotating shaft, the positioning structure falls into the four grooves in sequence, forming three mechanical positions: 90°, 180°, and 270°. This allows the limiting component to stably stop at three fixed angles: vertical support, horizontal extension, and reverse retraction. Increasing the number of grooves can provide more positioning options. By adjusting the number of grooves and the angle intervals, any number of angles can be flexibly set, and the wedge-shaped contour of the grooves ensures a clear engagement feel and sufficient holding force when switching between positions. Furthermore, both the positioning structure and the anchoring structure provide tactile or audible feedback to the user at the moment of re-engagement.
[0070] Regulation process
[0071] See Figures 13-18 This is the complete adjustment process of the adjustable posture corrector. Figure 13 In the working state, the abutment part 7 is in an approximately upright position, and the axis of the telescopic part is basically perpendicular to the panel 1. Figure 14 For the engagement of the rotating component and the elastic component in this state, the positioning mechanism is embedded in the corresponding position of the anchoring mechanism. At this time, when the user pulls down on the abutment 7, the telescopic component and the abutment simultaneously flip downwards, causing the rotating component 3 to rotate synchronously as well. See [link to relevant documentation]. Figure 9 At this point, the elastic element deforms inward under radial pressure, and the positioning structure slides out of the anchoring structure until it moves to... Figure 15 In this state, the positioning structure enters the groove of the next anchoring structure, stabilizes again, emits a clear "click" sound, and provides tactile feedback to the user. At this time, the abutment 7 is in a nearly horizontal position, and the axis of the telescopic component is also basically parallel to the panel 1. Continuing to pull the abutment 7 downwards, the positioning structure of the elastic component slides out of the anchoring structure again, see [link to relevant documentation]. Figure 9 At this point, under pressure, the elastic element 41 deforms inward until it moves to... Figure 17 In the state of the previous step, the device re-enters the groove of the next anchoring structure, returns to a stable state, and provides feedback to the user. At this time, the abutment 7 is 90° downward with the panel (270° with the upper surface of the panel), and the abutment is in a retracted state, having rotated 180° compared to the initial working state.
[0072] Industrial application
[0073] In summary, this utility model provides an adjustable posture corrector, which has the following advantages over the prior art: by integrally injection molding the elastic arm and the shell, redundant parts such as traditional springs and limiting blocks are eliminated, significantly reducing mold and assembly costs; the radial engagement design of the elastic element and the wedge-shaped groove on the outer periphery of the rotating shaft disc provides reliable gear engagement and good feedback; the groove number design enables precise positioning, and users only need a small amount of force to switch, making operation easy and with a clear feel; the rotating part adopts a two-half shell snap-fit structure, which can be disassembled and assembled without tools; the table edge fixing part is stored in the bottom of the panel in the form of a flip plate, which forms a rigid abutment with the table edge in the thickness direction after unfolding, preventing back-and-forth displacement and further improving the stability of use.
[0074] The overall structure is simple, reliable, and low-cost, effectively overcoming the shortcomings of existing technologies such as numerous parts, complicated assembly, laborious operation, poor feel, and easy wear.
[0075] The terminology and expressions used herein are for descriptive purposes only, and this invention should not be limited to these terms and expressions. The use of these terms and expressions does not mean the exclusion of any illustrative and descriptive equivalent features (or parts thereof), and it should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, variations, and substitutions may also exist. Accordingly, the claims should be considered to cover all such equivalents.
[0076] Similarly, it should be noted that although the present invention has been described with reference to the specific embodiments described above, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and various equivalent changes or substitutions can be made without departing from the spirit of the present invention. Therefore, any changes or modifications to the above embodiments within the scope of the essential spirit of the present invention will fall within the scope of the claims of the present invention.
Claims
1. An adjustable posture corrector, characterized in that, The posture corrector includes: The panel includes a hinge located on the side closest to the human body; The limiting module is pivotally connected to the rotating shaft via a rotating component. The limiting module can rotate relative to the panel along the front and back. The rotating component includes a first part and a second part that can be interlocked to form a closed receiving cavity covering the rotating shaft.
2. The adjustable posture corrector according to claim 1, characterized in that, The first part is provided with an elastic element in the radial direction, and the elastic element has a degree of freedom of deformation in the radial direction.
3. The adjustable posture corrector according to claim 2, characterized in that, The rotating shaft is provided with an anchoring structure along the circumference, and the surface of the elastic element is provided with a positioning structure that is complementary in shape to the anchoring structure, together forming a gear limit.
4. The adjustable posture corrector according to claim 3, characterized in that, The limiting module also includes a telescopic component and a stop component that are fixedly connected. The stop component has an ergonomic curved surface on the side closest to the human body. The angle between the axis of the telescopic component and the panel surface is adjustable.
5. The adjustable posture corrector according to claim 4, characterized in that, The anchoring structure is a groove, and the positioning structure is a protrusion.
6. The adjustable posture corrector according to claim 5, characterized in that, The groove and the protrusion can be either hemispherical or wedge-shaped.
7. The adjustable posture corrector according to claim 6, characterized in that, The rotating shaft has four grooves evenly distributed along its outer circumference.
8. The adjustable posture corrector according to claim 7, characterized in that, The elastic element is an elastic arm structure, and the elastic element is integrally formed with the inner wall of the first part.
9. The adjustable posture corrector according to any one of claims 1-8, characterized in that, The bottom of the panel is provided with a rotatable table edge fastener, which has a first state and a second state: In the first state, the table edge fastener is housed within the panel; In the second state, the table edge fastener extends out and abuts against the table edge.