Lifting armrest and seat
By combining the guide part and the limiting groove on the gear position bracket, the problem of inflexible handrail height adjustment is solved, and the handrail height can be adjusted quickly and accurately.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, the handrail height adjustment structure is complex, the adjustment is inflexible, the operation is difficult, and the positioning is inaccurate. Users need to make multiple adjustments to achieve the ideal height.
The gear shift bracket is equipped with a guide part to guide the limit rod to move accurately into the limit groove. Combined with the cooperation of the lifting rod and the limit groove, the handrail height can be precisely adjusted.
It enables quick and accurate adjustment of the armrest height, allowing users to achieve their ideal height without multiple adjustments.
Smart Images
Figure CN224038798U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to chair technical field especially is related to a kind of lifting handrails and seat. BACKGROUND
[0002] In the related art, in order to improve the comfort and use experience of users, and different people and specific people have different requirements for the height of the handrails in different use states, the demand for the height adjustability of the handrails is increasing. However, due to the complex lifting adjustment structure in the handrails, the adjustment is not flexible enough, the operation is difficult, and the positioning is inaccurate, so the user needs to debug multiple times to achieve the ideal height. SUMMARY
[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a lifting handrail, a guide portion is provided on the gear support, for guiding the limit rod to move towards the limit slot, so that the limit rod can be accurately moved into the corresponding limit slot, so that the user's ideal height can be adjusted.
[0004] The utility model further provides a seat with the above lifting handrail.
[0005] According to the lifting handrail of the first aspect of the utility model, the handrail includes a handrail body and a handrail rod connected below the handrail body; a gear assembly is located in the handrail rod, the gear assembly includes a gear support and a lifting rod, the lifting rod is movably located in the gear support, and the upper end is connected with the handrail body; the lower end of the gear support is connected with the seat body; the handrail rod can move up and down relative to the gear support; the gear support has a plurality of limit slots, and the plurality of limit slots are arranged in the up-down direction; the lifting rod has a limit rod matched with the limit slot; a guide portion is provided at the opening of the limit slot, for guiding the limit rod to move towards the limit slot.
[0006] According to the lifting handrail of the utility model, the limit rod of the lifting rod is matched with the limit slot of the gear support, so that the height of the handrail is adjusted by lifting or lowering the lifting rod, and a guide portion is provided on the gear support, for guiding the limit rod to move towards the limit slot, so that the limit rod can be accurately moved into the corresponding limit slot, so that the user's ideal height can be adjusted.
[0007] According to some embodiments of the utility model, the guide portion is a limit protrusion provided at the opening of the limit slot.
[0008] According to some embodiments of the utility model, the gear support has first movable slot and second movable slot extending along up-down direction, the upper end and the lower end of first movable slot and second movable slot are communicated, the side wall of first movable slot is provided with plurality of limit slot.
[0009] According to some embodiments of the utility model, the uppermost limit slot is first limit slot, the guide part is arranged at the opening of first limit slot.
[0010] According to some embodiments of the utility model, the side wall of limit slot is formed with guide surface, the guide surface is arranged upwardly inclined, for guiding limit rod to separate from limit slot.
[0011] According to some embodiments of the utility model, the side wall of limit slot is further formed with limit surface, the limit surface is arranged upwardly inclined, the limit surface and guide surface are oppositely arranged along up-down direction, and the limit surface is below guide surface.
[0012] According to some embodiments of the utility model, the lifting handrail further includes: elastic member, the elastic member is between the lifting rod and the handrail body, for making limit rod movable to limit slot.
[0013] According to some embodiments of the utility model, the side of lifting rod towards handrail body has extension rod, the side of handrail body towards lifting rod has mounting slot, the elastic member includes spring, one end of spring is sleeved on extension rod, and the other end is in mounting slot.
[0014] According to some embodiments of the utility model, the gear support is provided with two, two gear supports are connected for defining movable channel, limit slot is on the side of gear support towards movable channel, and lifting rod is movably arranged in movable channel.
[0015] The seat according to the second aspect of the utility model comprises the lifting handrail according to the first aspect of the utility model.
[0016] According to the seat of the utility model embodiment, by setting the lifting handrail, the height of handrail is adjusted by lifting rod ascending or descending, the guide part is arranged on gear support, limit rod is guided to move in limit slot, limit rod can be accurately moved in corresponding limit slot, so that the height of user can be adjusted.
[0017] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings of which:
[0019] Figure 1 is a schematic view of a lifting handrail according to some embodiments of the present utility model;
[0020] Figure 2 is Figure 1 a cross-sectional view of the lifting handrail in the middle;
[0021] Figure 3 is Figure 1 another direction of the cross-sectional view of the lifting handrail in the middle;
[0022] Figure 4 is Figure 1 an exploded view of the lifting handrail in the middle.
[0023] Reference signs:
[0024] 100, lifting handrail;
[0025] 10, handrail; 11, handrail body; 111, mounting groove; 12, handrail rod;
[0026] 20, gear assembly; 21, gear support; 211, limiting groove; 2111, first limiting groove; 2112, guide surface; 2113, limiting surface; 212, limiting protrusion; 213, first movable groove; 214, second movable groove; 22, lifting rod; 221, limiting rod; 222, extension rod; 223, clamping protrusion; 224, connecting rod;
[0027] 31, elastic member; 32, fixed rod; 321, clamping groove. DETAILED DESCRIPTION
[0028] Embodiments of the present utility model are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and cannot be understood as a limitation of the present utility model.
[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] The following is for reference. Figures 1-4 Description of a lifting handrail 100 according to an embodiment of the present utility model.
[0032] According to a first aspect embodiment of the present invention, a lifting armrest 100 includes an armrest 10 and a shift assembly 20. The armrest 10 includes an armrest body 11 and an armrest rod 12, with the armrest rod 12 connected to the lower part of the armrest body 11. The shift assembly 20 is located within the armrest rod 12 and includes a shift bracket 21 and a lifting rod 22. The lifting rod 22 is movably located within the shift bracket 21, with its upper end connected to the armrest body 11 and its lower end connected to the seat body. The armrest rod 12 can move vertically relative to the shift bracket 21.
[0033] For example, the handrail body 11 can be made of plastic or metal, and the handrail bar 12 can be made of plastic.
[0034] When the lifting rod 22 moves upward, the lifting rod 22 can lift the handrail body 11 upward, and the handrail body 11 can drive the handrail rod 12 to move upward relative to the gear support 21, so that the handrail body 11 can move upward. When the lifting rod 22 moves downward, the lifting rod 22 can drive the handrail body 11 to move downward, and the handrail body 11 can drive the handrail rod 12 to move downward relative to the gear support 21, so that the handrail body 11 can move downward, thereby realizing the upward and downward movement of the handrail body 11.
[0035] For example, the gear support 21 can be a plastic part, and the lifting rod 22 can be a metal part or a plastic part.
[0036] The gear support 21 has a plurality of limiting grooves 211, and the plurality of limiting grooves 211 are arranged in the up-down direction. The lifting rod 22 has a limiting rod 221 matched with the limiting groove 211. When the limiting rod 221 is matched with one of the limiting grooves 211, the lifting rod 22 is located at a corresponding height, and the handrail rod 12 is lifted or lowered to the corresponding height.
[0037] When the user needs to adjust the height of the handrail 10, the user can pull the handrail 10 upward. When the handrail 10 moves upward, the limiting rod 221 of the lifting rod 22 can be separated from the limiting groove 211. If the user wants to adjust the height of the handrail 10 downward, the user pushes the handrail 10 to move downward until it is lowered to the desired height of the user. At this time, the user releases the handrail 10, and under the action of gravity, the limiting rod 221 of the lifting rod 22 can move into the corresponding limiting groove 211, so as to keep the lifting rod 22 at the corresponding height. If the user wants to adjust the height of the handrail 10 upward, the user continues to pull the handrail 10 upward until it is raised to the desired height of the user. At this time, the user releases the handrail 10, and under the action of gravity, the limiting rod 221 of the lifting rod 22 can move into the corresponding limiting groove 211, so as to keep the lifting rod 22 at the corresponding height.
[0038] The lifting handrail 100 further comprises a guide portion, which is arranged at the opening of the limiting groove 211, i.e. the guide portion is mounted on the gear support 21, and the guide portion can be arranged at the opening of each limiting groove 211. When the lifting rod 22 is lifted or lowered, the guide portion is used to guide the limiting rod 221 to move into the corresponding limiting groove 211, so that the limiting rod 221 can move into the corresponding limiting groove 211, avoiding the limiting rod 221 moving into the adjacent or other limiting grooves 211, which can cause the position of the lifting rod 22 to change and cannot be adjusted to the desired height of the user.
[0039] For example, the guide portion can be a guide block arranged on the gear support 21, which is used to guide the limiting rod 221 to move into the corresponding limiting groove 211.
[0040] According to the embodiment of the utility model, the limiting rod 221 of the lifting rod 22 and the limiting groove 211 of the gear support 21 are matched to make the lifting rod 22 rise or fall to adjust the height of the handrail 10, and the guiding part is arranged on the gear support 21 to guide the limiting rod 221 to move towards the limiting groove 211, so that the limiting rod 221 can accurately move into the corresponding limiting groove 211, thereby the user's desired height can be adjusted.
[0041] According to some embodiments of the utility model, referring to Figures 2-4 The guiding part is the limiting protrusion 212 arranged at the opening of the limiting groove 211, and the limiting protrusion 212 can be arranged on the gear support 21. The guiding part is the limiting protrusion 212, which limits the moving position of the limiting rod 221, so that the processing mode and working mode of the guiding part are simple.
[0042] For example, the limiting protrusion 212 can be arranged at the opening of each limiting groove 211.
[0043] According to some embodiments of the utility model, referring to Figures 2-4 The gear support 21 has a first moving groove 213 and a second moving groove 214 extending along the up-down direction, and the upper end and the lower end of the first moving groove 213 and the second moving groove 214 are communicated, the side wall of the first moving groove 213 is provided with a plurality of limiting grooves 211, and the openings of the plurality of limiting grooves 211 are arranged towards the first moving groove 213.
[0044] When the user needs to adjust the height of the handrail 10, the user can pull the handrail 10 upwards, and when the handrail 10 moves upwards, the limiting rod 221 of the lifting rod 22 can be separated from the limiting groove 211, and the limiting rod 221 of the lifting rod 22 can move into the first moving groove 213 and move along the up-down direction in the first moving groove 213 to make the limiting rod 221 move into another limiting groove 211 to fix the height of the handrail 10.
[0045] The first movable slot 213 and the second movable slot 214 can form a circulation slot, when the handrail 10 is at the highest height, the limiting rod 221 is located in the uppermost limiting slot 211, at this time, the user wants to lower the height of the handrail 10, the user can pull the handrail 10 upwards, when the handrail 10 is moved upwards, the limiting rod 221 of the lifting rod 22 can be separated from the limiting slot 211, the limiting rod 221 of the lifting rod 22 can be moved to the upper end of the first movable slot 213, the upper ends of the first movable slot 213 and the second movable slot 214 are communicated, the limiting rod 221 can be moved into the second movable slot 214, and under the action of gravity, the limiting rod 221 moves downwards along the second movable slot 214 to the lower end of the second movable slot 214, the lower end of the second movable slot 214 and the lower end of the first movable slot 213 are communicated, the limiting rod 221 can be moved to the lower end of the first movable slot 213, the user can pull the handrail 10 upwards, and the height is adjusted to the ideal height, the first movable slot 213 and the second movable slot 214 can form a circulation slot, so that the lifting rod 22 cannot be moved to the lowest position due to the influence of the guide part.
[0046] According to some embodiments of the present application, referring to Figure 2 In the up-down direction, the uppermost limiting slot 211 is a first limiting slot 2111, and the guide part is arranged at the opening of the first limiting slot 2111.
[0047] When the user pulls the handrail 10 upwards, the handrail 10 can be pulled to the highest position when the handrail 10 pulls the lifting rod 22 upwards, and under the action of gravity, the handrail 10 can be linearly lowered and cannot be moved to the first limiting slot 2111, the guide part arranged at the opening of the first limiting slot 2111 can guide the limiting rod 221 to be moved into the first limiting slot 2111, so that the lifting rod 22 is kept at the highest gear position.
[0048] In addition, when the user pulls the handrail 10 upwards, the handrail 10 can be pulled to the highest position when the handrail 10 pulls the lifting rod 22 upwards, and under the action of gravity, the handrail 10 can be moved from the first movable slot 213 to the second movable slot 214, and then be lowered from the second movable slot 214 to the bottom of the second movable slot 214, and the handrail 10 cannot be clamped into the first limiting slot 2111, the guide part arranged at the opening of the first limiting slot 2111 can guide the limiting rod 221 to be moved into the first limiting slot 2111, so that the lifting rod 22 is kept at the highest gear position.
[0049] According to some embodiments of the present application, referring to Figure 2 , Figure 4The side wall of the limiting groove 211 is formed with a guide surface 2112 which is arranged upwardly inclined, and is used for guiding the limiting rod 221 to disengage from the limiting groove 211, when the user pulls the handrail 10 upwardly, the handrail 10 drives the lifting rod 22 to rise, and the guide surface 2112 can guide the lifting rod 22 to disengage from the limiting groove 211 smoothly.
[0050] According to some embodiments of the present utility model, referring to Figure 2 , Figure 4 The side wall of the limiting groove 211 is further formed with a limiting surface 2113 which is arranged upwardly inclined, the limiting surface 2113 is arranged opposite to the guide surface 2112 along the up-down direction and is located below the guide surface 2112, and after the limiting rod 221 moves into the limiting groove 211, the limiting surface 2113 can limit the limiting rod 221 from disengaging from the limiting groove 211.
[0051] According to some embodiments of the present utility model, referring to Figures 3-4 The lifting handrail 100 further comprises an elastic member 31 which is located between the lifting rod 22 and the handrail body 11 and is used for moving the limiting rod 221 into the limiting groove 211.
[0052] When the user needs to adjust the height of the handrail 10, the handrail 10 can drive the limiting rod 221 of the lifting rod 22 to disengage from the limiting groove 211 when moving upwardly, the position of the lifting rod 22 will be offset, causing the elastic member 31 to be elastically deformed, when the user adjusts the handrail 10 to the desired height, the user releases the handrail 10, and under the action of the elastic member 31, the limiting rod 221 of the lifting rod 22 can move into the corresponding limiting groove 211.
[0053] According to some embodiments of the present utility model, referring to Figures 3-4 The side of the lifting rod 22 facing the handrail body 11 is provided with an extension rod 222, the side of the handrail body 11 facing the lifting rod 22 is provided with a mounting groove 111, and the elastic member 31 comprises a spring, one end of the spring is sleeved on the extension rod 222, and the other end is located in the mounting groove 111, so that the upper end and the lower end of the spring can be limited respectively, and the position of the spring cannot be displaced and cannot function better.
[0054] In one specific example, the upper end of the lifting rod 22 is further connected with a connecting rod 224 which extends along the width direction of the lifting rod 22, the extension rod 222 is connected to the upper end of the connecting rod 224, and the extension rod 222 is provided with two, the two extension rods 222 are connected to the two ends of the connecting rod 224 respectively, and correspondingly, the spring is provided with two, and the two springs can increase the reset ability of the lifting rod 22.
[0055] According to some embodiments of the present utility model, referring to Figures 3-4The two gear supports 21 are connected to define a movable channel, the limiting grooves 211 are located on the side of the gear supports 21 facing the movable channel, and the lifting rod 22 is movably located in the movable channel. Each gear support 21 has a plurality of limiting grooves 211, and the plurality of limiting grooves 211 of the two gear supports 21 are arranged in one-to-one correspondence, and the two ends of the limiting rod 221 of the lifting rod 22 are located in the corresponding limiting grooves 211 of the two gear supports 21, respectively.
[0056] For example, the two gear supports 21 are connected by bolts.
[0057] In a specific example, the lifting armrest 100 further comprises a fixed rod 32 located in the armrest rod 12, and the gear support 21 is fixed in the fixed rod 32, and the lower end of the fixed rod 32 is connected with the seat body. The upper end of the fixed rod 32 is provided with a clamping groove 321, and correspondingly, the upper end of the lifting rod 22 is also provided with a clamping convex 223 corresponding to the clamping groove 321. When the lifting rod 22 is lowered to a certain position, the clamping convex 223 of the lifting rod 22 is located in the clamping groove 321, avoiding the lifting rod 22 from continuing to descend. The fixed rod 32 can be a metal piece or a plastic piece. If the fixed rod 32 is a plastic piece, the fixed rod 32 and the gear support 21 can be made into the same part, reducing the installation steps and reducing the cost.
[0058] According to the seat of the second aspect of the utility model, the seat comprises the lifting armrest 100 of the first aspect of the utility model.
[0059] According to the seat of the utility model, by setting the lifting armrest 100, the height of the armrest 10 is adjusted by the lifting rod 22 rising or descending, and the guiding part is arranged on the gear support 21, which is used for guiding the limiting rod 221 to move in the limiting groove 211, so that the limiting rod 221 can be accurately moved into the corresponding limiting groove 211, thereby the desired height of the user can be adjusted.
[0060] In the description of the specification, the description of the terms "some embodiments", "optionally", "further", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0061] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.
Claims
1. An elevator handrail, characterized in that include: The handrail includes a handrail body and a handrail bar connected to the lower part of the handrail body; A gear shift assembly is located inside the armrest. The gear shift assembly includes a gear shift bracket and a lifting rod. The lifting rod is movably located inside the gear shift bracket and its upper end is connected to the armrest body. The lower end of the gear shift bracket is connected to the seat body. The armrest can move relative to the gear shift bracket in the vertical direction. The gear shift bracket has multiple limiting grooves, which are spaced apart in the vertical direction. The lifting rod has a limiting rod that cooperates with the limiting grooves. A guide portion is provided at the opening of the limiting groove to guide the limiting rod to move into the limiting groove.
2. The lifting handrail according to claim 1, characterized in that, The guide portion is a limiting protrusion provided at the opening of the limiting groove.
3. The lift bench of claim 1, wherein The gear shift bracket has a first movable groove and a second movable groove extending in the vertical direction. The upper and lower ends of the first movable groove and the second movable groove are connected. The side wall of the first movable groove is provided with a plurality of limiting grooves.
4. The lifting handrail according to claim 1 or 3, characterized in that, The uppermost limiting groove is the first limiting groove, and the guide part is disposed at the opening of the first limiting groove.
5. The lifting handrail according to claim 4, characterized in that, The sidewall of the limiting groove has a guide surface, which is inclined upward to guide the limiting rod out of the limiting groove.
6. The lifting handrail according to claim 5, characterized in that, The sidewall of the limiting groove also forms a limiting surface, which is inclined upwards. The limiting surface and the guide surface are arranged opposite each other in the vertical direction, and the limiting surface is located below the guide surface.
7. The elevated bench of claim 1, wherein, Also includes: An elastic element is located between the lifting rod and the handrail body, and is used to allow the limiting rod to move into the limiting groove.
8. The lifting handrail according to claim 7, characterized in that, The lifting rod has an extension rod on the side facing the handrail body, and the handrail body has a mounting groove on the side facing the lifting rod. The elastic element includes a spring, one end of which is sleeved on the extension rod, and the other end is located in the mounting groove.
9. The elevated handrail of claim 7, wherein, Two gear position brackets are provided, and the two gear position brackets are connected to define an active channel. The limiting groove is located on the side of the gear position bracket facing the active channel, and the lifting rod is movably located within the active channel.
10. A seat, characterized by include: The lifting handrail according to any one of claims 1-9.