Armrest lifting mechanism and seat furniture

Abstract

The present disclosure relates to an armrest lifting mechanism and a seat. The armrest lifting mechanism comprises a fixed component, a movable component, a sliding rail mechanism and a limiting mechanism. The sliding rail mechanism comprises at least one set of movable sliding rails and static sliding rails, the movable sliding rails are connected to the movable component, and the static sliding rails are connected to the fixed component. The limiting mechanism can cooperate with the fixed component and the movable component to limit the relative movement of the two. Through the cooperation of the limiting mechanism, the fixed component and the movable component, the present application realizes the stable lifting and precise positioning of the armrest, effectively meets the height requirements of different users, and significantly improves the comfort and adaptability of the seat.

Description

Technical Field

[0001] This disclosure relates to the field of furniture technology, and in particular to an armrest lifting mechanism and a seat. Background Technology

[0002] Most seats are equipped with armrests to support the user's arms and improve comfort. Existing height-adjustable armrests commonly use either motor-driven worm gear lifting or manual lifting via an internal lever mechanism. Electric methods suffer from complex structures, high costs, and short lifespans, while manual methods often present problems such as uneven pulling and difficulty in adjusting the armrest height. Utility Model Content

[0003] This disclosure provides an armrest lifting mechanism and a seat to address the shortcomings of related technologies.

[0004] According to a first aspect of the present disclosure, a handrail lifting mechanism is provided, comprising: Fixed components; Activity components; A slide rail mechanism, comprising at least one set of movable slide rails and stationary slide rails, wherein the movable slide rails are connected to the movable component, and the stationary slide rails are connected to the fixed component; and A limiting mechanism that can cooperate with the fixed component and the movable component to limit their relative movement.

[0005] Optionally, the limiting mechanism includes a locking pin and a locking hook plate; the locking hook plate has a chamber, and along the length direction of the locking hook plate, the chamber is provided with interconnected and parallel moving channels and multiple locking channels; the locking pin is provided with a positioning block, and when the positioning block moves along the moving channel, the positioning block can selectively engage with any of the locking channels.

[0006] Optionally, the limiting mechanism further includes a sliding plate and an elastic element. One end of the sliding plate is connected to the fixing component, and the other end is provided with two communicating positioning grooves. The locking pin is placed in the positioning groove. The elastic element is disposed between the locking pin and the inner wall of the positioning groove, so that the locking pin can move horizontally within the positioning groove.

[0007] Optionally, the limiting mechanism further includes a positioning element, which is detachably installed at the opening of the chamber.

[0008] Optionally, the slide rail mechanism includes two sets of movable slide rails and stationary slide rails. The two sets of stationary slide rails are respectively fixed on opposite sides of the fixed component, and the two movable slide rails are respectively fixed on opposite sides of the movable component.

[0009] Optionally, the movable component includes a movable plate and a lifting plate fixed to the movable plate; wherein the lifting plate includes a connecting part and a supporting part, and the connecting part and the supporting part are in an L-shaped structure.

[0010] Optionally, the movable plate is provided in two sets, and the two sets of movable plates are arranged vertically at intervals; the corresponding fixing component includes two sets of fixing plates, and the two sets of fixing plates are arranged vertically at intervals.

[0011] Optionally, the fixed plate is provided with a clearance portion that bends away from the movable plate and has an upward-opening V-shaped structure.

[0012] According to a second aspect of the present disclosure, a seating arrangement is provided, comprising an armrest frame, an armrest board, and the armrest lifting mechanism described in the first aspect, wherein a fixed component is connected within the armrest frame, and a movable component is connected to the armrest board.

[0013] Optionally, the top of the handrail frame is provided with a through groove for the handrail lifting mechanism to move up and down, the handrail plate is located above the handrail frame, and the projection of the handrail plate on the vertical plane covers the handrail frame.

[0014] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: As can be seen from the above embodiments, this application achieves smooth lifting and precise positioning of the armrest through the synergistic effect of the limiting mechanism, fixed components, and movable components, and can effectively meet the height needs of different users, significantly improving the comfort and adaptability of the seating.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0017] Figure 1 This is a schematic diagram of the structure of a seating arrangement according to an exemplary embodiment.

[0018] Figure 2 This is a schematic diagram of the structure of a handrail lifting mechanism according to an exemplary embodiment.

[0019] Figure 3 This is a schematic diagram illustrating the structure of a locking pin, a positioning block, and a sliding plate according to an exemplary embodiment.

[0020] Figure 4 This is a schematic diagram of the structure of the locking hook plate and the positioning member according to an exemplary embodiment.

[0021] Figure 5 This is a structural schematic diagram of the handrail frame and handrail panel according to an exemplary embodiment. Detailed Implementation

[0022] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0023] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0024] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0025] Reference Figure 1 As shown, this application discloses an armrest lifting mechanism, which includes a fixed component 10, a movable component 20, a slide rail mechanism 30, and a limiting mechanism 40. Through the coordinated action of the limiting mechanism 40, the fixed component 10, and the movable component 20, the user can achieve smooth lifting and precise positioning of the armrest, effectively meeting the height requirements of different users and significantly improving the comfort and adaptability of the seating.

[0026] Please refer to the reference again. Figure 2 As shown, the fixing assembly 10 includes two sets of fixing plates 11, which are arranged vertically at intervals. To further enhance stability, a triangular reinforcing rib (not shown) can be added between the two sets of fixing plates 11. Thus, compared to a single fixing plate 11, the two sets of fixing plates 11 in this application constitute a highly rigid and stable whole, which can more effectively resist overturning moments generated during use.

[0027] The movable component 20 includes a movable plate 21 and a lifting plate 22 fixed to the movable plate 21. There are two sets of movable plates 21, which are arranged vertically at intervals.

[0028] The fixed plate 11 is provided with a clearance portion 111 that bends away from the movable plate 21. The clearance portion 111 and the movable plate 21 together form a space for accommodating the limiting mechanism 40. In this way, by providing the clearance portions 111 at both ends of the fixed plate 11, it and the movable plate 21 together form a regular "storage compartment". This not only makes efficient use of vertical space and makes the handrail lifting mechanism structure compact, but more importantly, it perfectly solves the problem of arranging the limiting mechanism 40, realizes interference-free, integrated hidden installation, and enhances the local rigidity of the overall component.

[0029] Furthermore, the lower fixing plate 11 has an upward-opening V-shaped structure. This recessed bottom of the fixing plate 11 significantly lowers the initial position of the limiting mechanism 40, thereby providing greater downward space for the movable component 20 and effectively increasing the lifting stroke. The lifting plate 22 includes a connecting part 221 and a supporting part 222, which are L-shaped. Specifically, the connecting part 221 is fixed parallel to the movable plate 21 and moves up and down synchronously to transmit power. The horizontally extending supporting part 222 is specifically used for installing and fixing the external handrail. The included angle between the connecting part 221 and the supporting part 222 is not limited here and can be adjusted according to the installation position of the handrail on the supporting part 222.

[0030] The slide rail mechanism 30 includes at least one set of movable slide rails 31 and stationary slide rails 32. The stationary slide rails 32 are connected to the fixed component 10, and the movable slide rails 31 are connected to the movable component 20. In this embodiment, the slide rail mechanism 30 includes two sets of movable slide rails 31 and stationary slide rails 32. The two sets of stationary slide rails 32 are respectively fixed to opposite sides of the fixed component 10, and the two movable slide rails 31 are respectively fixed to opposite sides of the movable component 20.

[0031] The two sets of moving slide rails 31 and stationary slide rails 32 are located on both sides of the limiting mechanism 40. This symmetrical layout effectively balances the lateral forces on the moving component 20 during lifting and lowering, preventing one-sided jamming.

[0032] In one embodiment, a ball or roller bearing is provided between the stationary slide rail 32 and the movable slide rail 31 to ensure smooth and low-noise sliding of the movable slide rail 31 relative to the stationary slide rail 32. Furthermore, a limiting block (not shown in the figure) is provided at the end of the stationary slide rail 32 to prevent the movable component 20 from exceeding its travel range during lifting and lowering, ensuring safe operation. In this embodiment, the limiting block is engaged with the end of the stationary slide rail 32 to facilitate the assembly and disassembly of the movable slide rail 31 relative to the stationary slide rail 32.

[0033] Please refer to the reference again. Figure 3 and Figure 4 As shown, the limiting mechanism 40 can cooperate with the fixed component 10 and the movable component 20 to limit their relative movement. Specifically, the limiting mechanism 40 includes a locking pin 41, a locking hook plate 42, a positioning block 43, a sliding plate 44, an elastic element (not shown in the figure), and a positioning element 45.

[0034] The locking plate 42 has a chamber with open connections at both ends. Along the length of the locking plate 42, the chamber contains interconnected and parallel moving channels 421 and multiple locking channels 422, each of which curves downwards. Thus, during unlocking and upward movement, the locking pin 41 can be naturally guided along the curved trajectory to the common moving channel 421, achieving smooth, interference-free, and low-wear switching. The moving channel 421 is longer than the locking channel 422.

[0035] One end of the sliding plate 44 is connected to the fixing component 10, and the other end is provided with two communicating positioning grooves 441, in which the locking pin 41 is placed. When the sliding plate 44 moves up and down, it will drive the locking pin 41 to move synchronously, and the positioning block 43 provided on the locking pin 41 can be selectively engaged in any locking channel 422 to achieve locking and positioning at any position.

[0036] To ensure that the positioning block 43 can be accurately engaged in the locking channel 422, an elastic element is provided between the locking pin 41 and the inner wall of the positioning groove 441, allowing the locking pin 41 to move horizontally within the positioning groove 441, i.e. Figure 4 The positioning block 43 shown moves from right to left.

[0037] Specifically, the locking pin 41 is provided with a protrusion pointing towards the inner wall of the positioning groove 441. One end of the elastic element is sleeved on the protrusion, and the other end abuts against the inner wall of the positioning groove 441. Optionally, the elastic element can be a spring, a sheet, etc., and there is no specific limitation here.

[0038] The positioning element 45 is detachably installed at the opening of the chamber so that it extends directly into the interior of the chamber. When the movable component 20 inside the chamber moves to a preset limit position, it will contact and abut against the extended part of the positioning element 45, thereby forcibly preventing further movement and achieving precise end-stroke limit.

[0039] Please refer to the reference again. Figure 5 As shown, this application also discloses a seating arrangement, which includes an armrest frame 50, an armrest board 60, and an armrest lifting mechanism. A fixed component 10 is connected to the armrest frame 50, and a movable component 20 is connected to the armrest board 60.

[0040] The top of the handrail frame 50 has a through groove 51 for the handrail lifting mechanism to move up and down. The connecting part 221 moves up and down along the through groove 51, and the supporting part 222 is located outside the through groove 51.

[0041] In this embodiment, the handrail panel 60 is located above the handrail frame 50, and the projection of the handrail panel 60 on the vertical plane covers the handrail frame 50 to achieve an aesthetically pleasing concealed effect. Preferably, a rubber sealing strip can be provided on the lower surface of the handrail panel 60, so that when the handrail is lowered to its lowest position, the handrail panel 60 can fit tightly against the top of the handrail frame 50, which serves to prevent dust and reduce noise.

[0042] This application also discloses a method for raising the handrail. The user lifts the handrail plate 60 upward with both hands, causing the lifting plate 22 to move upward. Then, the sliding plate 44 moves upward with the lifting plate 22. After being released at an appropriate position, the locking pin 41 inside the sliding plate 44 moves towards the locking channel 422 under the action of the elastic element and locks it, so that the handrail plate 60 can be suspended at that position.

[0043] This application also discloses a method for resetting the handrail: the user continuously pulls the handrail plate 60, and after the sliding plate 44 is pulled to the highest position, the locking pin 41 enters the moving channel 421 independently. Then the user presses down the handrail plate 60, and the handrail lifting mechanism resets downward to the initial state.

[0044] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0045] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A handrail lifting mechanism, characterized in that, It includes: Fixed components; Activity components; A slide rail mechanism, comprising at least one set of movable slide rails and stationary slide rails, wherein the movable slide rails are connected to the movable component, and the stationary slide rails are connected to the fixed component; and A limiting mechanism that can cooperate with the fixed component and the movable component to limit their relative movement.

2. The handrail lifting mechanism according to claim 1, characterized in that, The limiting mechanism includes a locking pin and a locking hook plate; the locking hook plate has a chamber, and along the length direction of the locking hook plate, the chamber is provided with interconnected and parallel moving channels and multiple locking channels; the locking pin is provided with a positioning block, and when the positioning block moves along the moving channel, the positioning block can selectively engage with any of the locking channels.

3. The handrail lifting mechanism according to claim 2, characterized in that, The limiting mechanism further includes a sliding plate and an elastic element. One end of the sliding plate is connected to the fixing component, and the other end is provided with two communicating positioning grooves. The locking pin is placed in the positioning groove. The elastic element is disposed between the locking pin and the inner wall of the positioning groove, so that the locking pin can move horizontally within the positioning groove.

4. The handrail lifting mechanism according to claim 2, characterized in that, The limiting mechanism also includes a positioning element, which is detachably installed at the opening of the chamber.

5. The handrail lifting mechanism according to claim 1, characterized in that, The slide rail mechanism includes two sets of movable slide rails and stationary slide rails. The two sets of stationary slide rails are respectively fixed on opposite sides of the fixed component, and the two movable slide rails are respectively fixed on opposite sides of the movable component.

6. The handrail lifting mechanism according to claim 1, characterized in that, The movable component includes a movable plate and a lifting plate fixed to the movable plate; wherein the lifting plate includes a connecting part and a supporting part, and the connecting part and the supporting part are in an L-shaped structure.

7. The handrail lifting mechanism according to claim 6, characterized in that, The movable plate is provided in two sets, and the two sets of movable plates are arranged vertically at intervals; the corresponding fixed component includes two sets of fixed plates, and the two sets of fixed plates are arranged vertically at intervals.

8. The handrail lifting mechanism according to claim 7, characterized in that, The fixed plate is provided with a clearance portion that bends away from the movable plate and has an upward-opening V-shaped structure.

9. A seating arrangement, characterized in that, It includes a handrail frame, a handrail board, and a handrail lifting mechanism as described in any one of claims 1-8, wherein the fixed component is connected to the handrail frame, and the movable component is connected to the handrail board.

10. The seating according to claim 9, characterized in that, The top of the handrail frame has a through slot for the handrail lifting mechanism to move up and down. The handrail plate is located above the handrail frame, and the projection of the handrail plate on the vertical plane covers the handrail frame.

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