Armrest device and seat

Abstract

The utility model discloses an armrest device and a seat, the armrest device comprises a connecting arm and a supporting assembly, and the upper end of the connecting arm is provided with a sliding rod; the supporting assembly comprises an armrest pad, a lifting sleeve and a lifting control mechanism, the armrest pad is arranged at the upper end of the lifting sleeve, the lifting structure is connected to the lifting sleeve, the lifting sleeve is arranged on the connecting arm in a sleeving mode, the lifting control mechanism comprises a lifting base, a clamping piece, a lifting control piece and an elastic supporting piece, and the clamping piece is movably connected to the lifting base and provided with a clamping groove; the lifting seat is connected to the lifting sleeve and can move up and down relative to the sliding rod, the sliding rod penetrates through the clamping groove, the elastic supporting piece is arranged on the lifting seat and located on one side of the clamping piece, the upper end of the elastic supporting piece abuts against the clamping piece, so that the inner wall of the clamping groove abuts against the outer wall of the sliding rod, and the lifting control piece is connected to the lifting sleeve and can press the clamping piece downwards. According to the handrail device, stepless adjustment of the height of the handrail is achieved, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to an armrest device and a seat. Background Technology

[0002] A seat typically includes a seat cushion, backrest, lumbar support, and armrests. The armrests can be raised and lowered to support the user's hands. However, in some technologies, the armrests of some seats require buttons to control their height adjustment and have different settings; other seats do not have buttons, but the armrests need to be pulled to their maximum range to return to their original position. Neither of these types of armrests allows for free height adjustment. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a handrail device that enables free and stepless adjustment of the handrail height, greatly improving the user experience.

[0004] Secondly, this utility model also proposes a seat that uses the above-mentioned armrest device.

[0005] The handrail device provided according to the first aspect of the present invention includes:

[0006] The connecting arm has an upwardly extending slide bar at its upper end;

[0007] A support assembly includes an armrest pad, a lifting sleeve, and a lifting control mechanism. The armrest pad is located at the upper end of the lifting sleeve. The lifting mechanism is connected to the lifting sleeve, and the lifting sleeve is fitted onto the connecting arm. The lifting control mechanism includes a lifting seat, a locking member, a lifting control component, and an elastic support component. The locking member is movably connected to the lifting seat and has a vertically penetrating locking groove. The lifting seat is connected to the lifting sleeve and can move vertically relative to the slide rod. The slide rod passes through the locking groove. The elastic support component is located on the lifting seat and on one side of the locking member. The upper end of the elastic support component abuts against the locking member, so that the locking member forms an angle with the horizontal direction, and the inner wall of the locking groove abuts against the outer wall of the slide rod. The lifting control component is connected to the lifting sleeve and is configured to press down on the locking member, so that the locking member is parallel to the horizontal direction, and the inner wall of the locking groove separates from the outer wall of the slide rod.

[0008] The handrail device provided according to the first aspect of the present invention has at least the following beneficial effects: through the cooperation of the locking member and the sliding rod in the lifting control mechanism, the handrail pad can be stably supported at any height. Users can adjust the position of the handrail pad at any height according to their own needs, without being limited by fixed gears or complicated operation methods. This not only improves the adaptability and comfort of the handrail device, but also greatly enhances the user experience.

[0009] According to the handrail device provided in the first aspect embodiment of the present utility model, the lifting control mechanism further includes a transmission member, the transmission member is disposed on the lifting seat and can slide up and down, the lower end of the transmission member abuts against the upper side of the snap-fit ​​member near the elastic support member, the upper end is located on the lower side of the lifting control member, the lifting control member can push the transmission member downward, and the transmission member moving downward can press down the snap-fit ​​member.

[0010] According to the handrail device provided in the first aspect of the present invention, the lifting seat is provided with a sliding groove running from top to bottom, and the transmission member is inserted into the sliding groove and can slide up and down.

[0011] According to the handrail device provided in the first aspect of the present invention, the control member includes a rotating part and a pressing part, the top of the transmission member is provided with a pressing plate, the control member is rotatably connected to the lifting sleeve, the rotating part extends forward to the front side of the lifting sleeve, the pressing part extends backward and abuts against the upper end of the pressing plate, the rotating part can rotate upward so that the pressing part pushes the transmission member downward.

[0012] According to the first aspect of the present invention, the rotating part of the armrest device is located on the lower side of the armrest pad.

[0013] According to the handrail device provided in the first aspect of the present invention, the lifting seat is provided with a lifting channel, the lifting channel is connected to the locking groove, and the slide rod passes through the locking groove and the lifting channel.

[0014] According to the handrail device provided in the first aspect of the present invention, the middle part of the sliding rod is provided with a guide groove arranged from top to bottom, the lifting seat is connected to a guide rod, and the guide rod is located in the lifting channel and passes through the guide groove.

[0015] According to the handrail device provided in the first aspect embodiment of the present utility model, the inner peripheral wall of the lifting sleeve is provided with a plurality of press-fit ribs, and the end faces of the plurality of press-fit ribs abut against the outer wall of the lifting seat.

[0016] According to the handrail device provided in the first aspect of the present utility model, the lifting seat is provided with a receiving groove, the elastic support member is a spring, the lower end of the spring is provided in the receiving groove, and the upper end abuts against the lower end of the snap-fit ​​member.

[0017] The seat provided according to the second aspect embodiment of the present invention has all the beneficial effects of the first aspect embodiment of the present invention.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 A schematic diagram of the handrail device provided in an embodiment of this utility model;

[0021] Figure 2 A schematic diagram of the internal structure of the handrail device is provided for an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the handrail device during extension and retraction provided in an embodiment of the present utility model;

[0023] Figure 4 A cross-sectional view of the handrail device provided in an embodiment of this utility model;

[0024] Figure 5 A cross-sectional view of the handrail device in the present invention during extension and retraction.

[0025] Figure 6 This is an exploded view of the handrail device provided in an embodiment of the present utility model;

[0026] Figure 7 This is a cross-sectional view of the handrail device provided in an embodiment of the present utility model when disassembled.

[0027] The attached icons are numbered as follows:

[0028] Connecting arm 1000; slide bar 1100; guide groove 1110;

[0029] Support component 2000; Handrail pad 2100; Lifting sleeve 2200; Press-fit rib 2210; Lifting control mechanism 2300; Lifting seat 2310; Slide groove 2311; Lifting channel 2312; Guide rod 2313; Receiving groove 2314; Snap-fit ​​component 2320; Snap-fit ​​groove 2321; Lifting control component 2330; Rotating part 2331; Pressing part 2332; Elastic support component 2340; Transmission component 2350; Press-fit plate 2351. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, left, right, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in 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.

[0032] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] An embodiment of this utility model provides an armrest device for use in a seat. The specific structure and function of the armrest device provided in this utility model embodiment will be further described below with reference to the text and accompanying drawings.

[0035] Reference Figures 1 to 7According to the first aspect of the present invention, the handrail device includes a connecting arm and a support assembly. The upper end of the connecting arm is provided with an upwardly extending slide rod. The surface of the slide rod is flat, facilitating its engagement with the locking member in the lifting control mechanism to realize the lifting function of the handrail pad. The support assembly includes a handrail pad, a lifting sleeve, and a lifting control mechanism. The handrail pad is located at the upper end of the lifting sleeve, providing a comfortable support surface for the user. The lifting sleeve is fitted onto the connecting arm and can move up and down along the connecting arm, thereby driving the lifting of the handrail pad. The lifting control mechanism includes a lifting seat, a locking member, a lifting control component, and an elastic support component. The lifting seat is connected to the lifting sleeve and can move up and down relative to the slide rod. The locking member is movably connected to the lifting seat and is provided with a vertically penetrating locking groove. The slide rod passes through the locking groove, and the lifting sleeve is stably supported by the friction between the inner wall of the locking groove and the outer wall of the slide rod. The elastic support component is located on one side of the lifting seat, and its upper end abuts against the locking member. Under the action of the elastic support, the snap-fit ​​component forms a certain angle with the horizontal direction, so that the inner wall of the snap-fit ​​groove tightly abuts against the outer wall of the slide rod.

[0036] The lifting control unit is connected to the lifting sleeve and is configured to press down the locking member. When the user needs to lower the armrest mat, they simply operate the lifting control unit to press down the locking member. Under the action of the lifting control unit, the locking member becomes parallel to the horizontal direction, and the inner wall of the locking groove separates from the outer wall of the slide rod. At this time, the lifting sleeve can then smoothly descend under the action of gravity or with the user's manual push, thus realizing the lowering function of the armrest mat.

[0037] According to the first aspect of the present invention, the handrail device, through the cooperation of the locking member and the sliding rod in the lifting control mechanism, enables the handrail pad to be stably supported at any height. Users can adjust the position of the handrail pad at any height according to their needs, without being limited by fixed gears or complicated operation methods. This not only improves the adaptability and comfort of the handrail device, but also greatly enhances the user experience.

[0038] Reference Figures 4 to 7Understandably, when a user needs to raise the armrest height, they will apply upward force to the armrest or lifting sleeve. Since the lifting sleeve is connected to the lifting seat, the upward force is transmitted to the lifting seat, which in turn drives the entire lifting control mechanism to move upward. During the upward movement of the lifting seat, the locking component also rises relative to the slide rod. As the locking component continues to rise, the inner wall of the locking groove gradually becomes parallel to the outer wall of the slide rod, reducing the friction between the locking component and the slide rod, allowing the lifting seat and lifting sleeve to rise smoothly. When the user stops applying force, under the influence of gravity, the locking component tends to descend relative to the slide rod. However, because the elastic support maintains contact with one side of the locking component, the locking component tends to move closer to the slide rod, creating a certain angle between the locking component and the horizontal direction. This tendency to move closer translates into a tight fit between the inner wall of the locking groove and the outer wall of the slide rod. This fit provides sufficient friction, allowing the lifting sleeve (and armrest) to remain stably at any height. When the user needs to lower the armrest mat, they simply operate the lifting control mechanism to press down the locking piece. Under the action of the lifting control mechanism, the locking piece becomes parallel to the horizontal direction, and the inner wall of the locking groove separates from the outer wall of the slide rod. At this time, the lifting sleeve can then smoothly descend under the action of gravity or with the user's manual push, thus realizing the lowering function of the armrest mat.

[0039] Reference Figure 5 and Figure 6 It is understandable that the lifting seat has an internal mounting cavity for installing the snap-fit ​​component. One side of the lifting seat has an mounting port that connects to the mounting cavity. After the snap-fit ​​component passes through the mounting port, it enters the mounting cavity. Both ends of the snap-fit ​​component can move up and down in the mounting cavity. As the lifting seat rises, the snap-fit ​​component also rises relative to the slide rod. As the snap-fit ​​component continues to rise, the inner wall of the snap-fit ​​groove will gradually become parallel to the outer wall area of ​​the slide rod, thus reducing the friction between the snap-fit ​​component and the slide rod.

[0040] Reference Figure 2 , Figure 4 and Figure 5 According to the handrail device provided in the first aspect embodiment of this utility model, the lifting control mechanism further includes a transmission component. The transmission component is rod-shaped and disposed on the lifting seat, and can slide up and down along the lifting seat. The lower end of the transmission component abuts against the upper side of the locking member near the elastic support member, while the upper end is located below the lifting control component. When the user needs to lower the handrail pad, the lifting control component can be operated to push the transmission component downward. Since the lower end of the transmission component abuts against the upper side of the locking member, the downward movement of the transmission component will cause the locking member to move downward together. During the process of the transmission component pressing down on the locking member, the locking member gradually becomes parallel to the horizontal direction, and the friction between the inner wall of the locking groove and the outer wall of the slide rod gradually decreases until they are completely separated. At this time, the lifting sleeve (and handrail pad) can be smoothly lowered under the action of gravity or by the user's manual push.

[0041] Reference Figure 4 and Figure 5 According to the handrail device provided in the first aspect embodiment of this utility model, the lifting seat is provided with a sliding groove running from top to bottom. The size and shape of the sliding groove match the outer contour of the transmission component, so that the transmission component can be tightly inserted into the sliding groove and can slide up and down within the sliding groove. The design of the sliding groove not only provides stable support and guidance for the transmission component, but also ensures the stability and accuracy of the transmission component during the sliding process.

[0042] When the lifting control is activated, it pushes the transmission component downwards. Since the transmission component is inserted into a groove, it slides downwards along the guide of the groove when subjected to thrust. Simultaneously, the lower end of the transmission component abuts against the upper side of the locking component, causing the locking component to move downwards as well. Through the cooperation of the groove and the transmission component, this embodiment achieves stable sliding of the transmission component on the lifting seat, thereby ensuring effective control of the locking component by the lifting control. This not only improves the reliability and durability of the handrail device but also makes the handrail more stable and smooth during lifting.

[0043] According to the handrail device provided in the first aspect embodiment of this utility model, the control component includes a rotating part and a pressing part, and a pressing plate is provided on the top of the transmission component. The control component is designed to include two parts: a rotating part and a pressing part. The rotating part extends forward to the front side of the lifting sleeve for easy operation by the user; the pressing part extends backward and contacts the pressing plate provided on the top of the transmission component. The control component is mounted on the lifting sleeve by a rotatable connection, so that the rotating part can rotate up and down relative to the lifting sleeve.

[0044] When the user needs to adjust the armrest height, this can be achieved by rotating the control mechanism upwards. As the rotating part rotates upwards, the pressing part moves downwards. Since the lower end of the pressing part abuts against the pressing plate of the transmission component, the downward movement of the pressing part directly pushes the transmission component downwards. After being pushed by the pressing part, the transmission component slides downwards along the groove on the lifting seat and abuts against the locking part, making it parallel to the horizontal direction, thereby separating the inner wall of the locking groove from the outer wall of the slide rod. At this point, the user can easily adjust the height of the armrest, achieving stepless adjustment.

[0045] Understandably, in addition to using a transmission component, a pull rope can also be used in conjunction with a steering pulley to pull one end of the locking component downwards.

[0046] According to the first aspect of the present invention, the rotating part of the armrest device is located on the lower side of the armrest pad. This allows the rotating part to be conveniently operated by the user without affecting the normal use of the armrest pad. When the user needs to adjust the armrest height, they only need to extend their fingers under the armrest pad to easily touch and rotate the rotating part, thereby pushing the transmission component through the pressing part to achieve the height adjustment of the armrest.

[0047] According to the handrail device provided in the first aspect embodiment of the present utility model, the lifting seat is provided with a lifting channel, the lifting channel is connected to the snap-fit ​​groove, and the slide rod passes through the lifting channel and the snap-fit ​​groove connected thereto, so as to realize the stable connection of the slide rod between the lifting seat and the snap-fit ​​member.

[0048] The design of the lifting channel not only provides sufficient space for the slide bar to move up and down, but also ensures the stability and accuracy of the slide bar during movement. Because the lifting channel is connected to the locking slot, when the locking component tilts or moves under the action of the elastic support, the slide bar can move smoothly along the guide of the lifting channel and the locking slot without any obstruction.

[0049] According to the handrail device provided in the first aspect embodiment of this utility model, the middle part of the sliding rod is provided with a guide groove arranged from top to bottom, and the guide groove provides space for the guide rod on the lifting seat to pass through. The guide rod is fixed on the lifting seat and located in the lifting channel, and its size and shape match the guide groove, so that the guide rod can be tightly inserted into the guide groove.

[0050] When the handrail device is raised or lowered, the sliding rod moves up and down along the lifting channel and locking groove. During this process, the guide rod always passes through the guide groove, providing stable guidance and support for the sliding rod. The cooperative design of the guide groove and guide rod not only ensures the linear movement of the sliding block during the raising and lowering process, but also prevents the sliding rod from tilting or wobbling due to external forces.

[0051] According to the handrail device provided in the first aspect embodiment of this utility model, a plurality of crimping ribs are provided on the inner peripheral wall of the lifting sleeve. The crimping ribs are distributed along the inner wall of the lifting sleeve, and their end faces can tightly abut against the outer wall of the lifting seat. When the lifting sleeve and the lifting seat are assembled together, the crimping ribs are firmly pressed against the outer wall of the lifting seat, forming a stable connection structure. The design of the crimping ribs not only enhances the connection strength between the lifting sleeve and the lifting seat, but also improves the overall stability of the handrail device. During the use of the handrail, users may apply forces of various directions and magnitudes, and the presence of the crimping ribs can effectively resist these external forces, preventing loosening or separation between the lifting sleeve and the lifting seat.

[0052] Furthermore, the design of the crimped ribs also takes into account the ease of assembly and disassembly of the handrail assembly. Since the crimped ribs are attached to the outer wall of the lifting base by their end faces, when it is necessary to disassemble the handrail assembly, the lifting sleeve can be easily removed from the lifting base simply by overcoming the friction between the crimped ribs and the lifting base, without the need for additional tools or complicated operations.

[0053] According to the handrail device provided in the first aspect embodiment of this utility model, the lifting seat has a receiving groove, which communicates with the mounting cavity for installing the snap-fit ​​component. The elastic support component is a spring, and the receiving groove is used to install and accommodate the spring, which can ensure the stability of the spring installation and improve the compactness of the lifting seat structure. The spring, as an elastic support component, has its lower end fixed to the bottom of the receiving groove, and its upper end extends upward and abuts against the lower end of the snap-fit ​​component. When the snap-fit ​​component is subjected to a downward force, the spring will elastically deform, causing the snap-fit ​​component to descend.

[0054] Reference Figures 3 to 5 It is understandable that the mounting cavity has a downward opening, which facilitates the installation of the spring from bottom to top. The lower end of the lifting seat is connected to a limit block by fasteners. The limit block restricts the spring in the receiving groove and allows the upper end of the spring to extend into the mounting cavity of the mounting clip.

[0055] The seat provided according to the second aspect embodiment of the present invention has all the beneficial effects of the first aspect embodiment of the present invention.

[0056] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A handrail device, characterized in that, include: The connecting arm has an upwardly extending slide bar at its upper end; A support assembly includes an armrest pad, a lifting sleeve, and a lifting control mechanism. The armrest pad is located at the upper end of the lifting sleeve. The lifting mechanism is connected to the lifting sleeve, and the lifting sleeve is fitted onto the connecting arm. The lifting control mechanism includes a lifting seat, a locking member, a lifting control component, and an elastic support component. The locking member is movably connected to the lifting seat and has a vertically penetrating locking groove. The lifting seat is connected to the lifting sleeve and can move vertically relative to the slide rod. The slide rod passes through the locking groove. The elastic support component is located on the lifting seat and on one side of the locking member. The upper end of the elastic support component abuts against the locking member, so that the locking member forms an angle with the horizontal direction, and the inner wall of the locking groove abuts against the outer wall of the slide rod. The lifting control component is connected to the lifting sleeve and is configured to press down on the locking member, so that the locking member is parallel to the horizontal direction, and the inner wall of the locking groove separates from the outer wall of the slide rod.

2. The handrail device according to claim 1, characterized in that, The lifting control mechanism also includes a transmission component, which is disposed on the lifting seat and can slide up and down. The lower end of the transmission component abuts against the upper side of the locking member near the elastic support member, and the upper end is located on the lower side of the lifting control component. The lifting control component can push the transmission component downward, and the downward movement of the transmission component can press down the locking member.

3. The handrail device according to claim 2, characterized in that, The lifting seat is provided with a sliding groove running from top to bottom, and the transmission component is inserted into the sliding groove and can slide up and down.

4. The handrail device according to claim 2, characterized in that, The control component includes a rotating part and a pressing part. A pressure plate is provided on the top of the transmission component. The control component is rotatably connected to the lifting sleeve. The rotating part extends forward to the front side of the lifting sleeve, and the pressing part extends backward and abuts against the upper end of the pressure plate. The rotating part can rotate upward, thereby causing the pressing part to push the transmission component downward.

5. The handrail device according to claim 4, characterized in that, The rotating part is located on the underside of the armrest pad.

6. The handrail device according to claim 1, characterized in that, The lifting seat is provided with a lifting channel, which is connected to the locking groove, and the slide rod passes through the locking groove and the lifting channel.

7. The handrail device according to claim 6, characterized in that, The slide bar has a guide groove arranged from top to bottom in the middle, and the lifting seat is connected to a guide rod. The guide rod is located in the lifting channel and passes through the guide groove.

8. The handrail device according to claim 1, characterized in that, The inner peripheral wall of the lifting sleeve is provided with multiple crimped ribs, and the end faces of the multiple crimped ribs abut against the outer wall of the lifting seat.

9. The handrail device according to claim 1, characterized in that, The lifting seat is provided with a receiving groove, and the elastic support is a spring. The lower end of the spring is located in the receiving groove, and the upper end abuts against the lower end of the snap-fit ​​component.

10. A type of seat, characterized in that, Includes the handrail device as described in any one of claims 1 to 9.

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