Handrail with lifting and 360-degree rotation adjustment function

Abstract

The utility model discloses a handrail with lifting and 360 degree rotation adjusting function relates to seat supporting component technical field. Handrail includes lifting assembly, handrail pedestal, intermediate connecting mechanism, handrail panel, and handrail pedestal sets up at the upper end of lifting assembly, and handrail panel sets up above handrail pedestal, and intermediate connecting mechanism is connected with setting between handrail pedestal and handrail panel, and intermediate connecting mechanism includes first sliding part, and the sliding channel is seted up in handrail panel, and first sliding part is movably seted up in sliding channel, second rotating part, and the limiting slot is seted up on handrail pedestal, and second rotating part is rotatably seted up in limiting slot, and second rotating part is fixedly connected with first sliding part. The handrail of the utility model, handrail panel can lift, move and 360 degree rotatable to satisfy the use demand of various users, and the handrail simple and stable structure has strong practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of seat accessories, and in particular to an armrest with lifting and 360° rotation adjustment functions. Background Technology

[0002] Seating is an indispensable tool for people's lives, studies, and work. People may sit for extended periods while performing various tasks, making seat comfort extremely important. Among the components of a seat, the armrests play a crucial role in providing comfort. Traditional seat armrests are fixed structures without adjustment or height control, making them unsuitable for people of different heights. They also cannot rotate, failing to accommodate different armrest placement habits and thus failing to meet overall comfort requirements. To address this, some existing chairs have been designed with rotatable, height-adjustable, and movable armrests, allowing for convenient user adjustments.

[0003] However, most existing handrails only have one or two of the three functions: rotation, lifting, and movement. While a small number of handrails can have all three functions, their structures are very complex, or their rotation range, lifting height, and movement distance are extremely small, resulting in low practicality. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a handrail with lifting and 360° rotation adjustment functions. The handrail panel can be lifted, moved, and rotated 360° to meet the usage needs of various users. Moreover, the handrail has a simple and stable structure and is highly practical.

[0005] This utility model discloses a handrail with lifting and 360° rotation adjustment functions, the handrail comprising:

[0006] The lifting assembly includes a handrail base, an intermediate connecting mechanism, and a handrail panel. The handrail base is located at the upper end of the lifting assembly, the handrail panel is located above the handrail base, and the intermediate connecting mechanism is connected between the handrail base and the handrail panel.

[0007] The intermediate connection mechanism includes:

[0008] The first sliding member is movably disposed within the sliding channel of the armrest panel.

[0009] The second rotating component is provided with a limiting groove on the handrail base, and the second rotating component is rotatably disposed in the limiting groove in a 360° manner;

[0010] The second rotating component is fixedly connected to the first sliding component.

[0011] Furthermore, at least one strip-shaped connecting through hole is provided at the bottom of the sliding channel, and a fixed connecting part is integrally provided at the upper end of the second rotating member. The fixed connecting part passes upward through the strip-shaped connecting through hole to be fixedly connected to the first sliding member.

[0012] Furthermore, the first slider is limited within the sliding channel, and the first slider can only move linearly along the length direction of the sliding channel, and the strip-shaped connecting through hole extends along the length direction of the sliding channel.

[0013] Furthermore, the handrail also includes a sliding locking mechanism, the sliding locking mechanism comprising:

[0014] The first ball bolt is mounted on the first sliding member;

[0015] A sliding positioning groove is provided, which is adapted to the ball head end of the first ball bolt. Multiple sliding positioning grooves are provided, and the multiple sliding positioning grooves are equidistantly arranged on the bottom channel wall of the sliding channel along the movement direction of the first sliding member.

[0016] Furthermore, the handrail also includes a rotation locking mechanism, the rotation locking mechanism comprising:

[0017] The mounting base is fixedly disposed on the top of the lifting assembly and located within the limiting groove;

[0018] The second ball bolt is vertically mounted on the mounting base;

[0019] A plurality of rotating positioning grooves are provided, and the plurality of rotating positioning grooves are evenly arranged along the circumferential direction on the lower end surface of the second rotating component. The rotating positioning grooves are adapted to the ball head end of the second ball bolt.

[0020] Furthermore, the lifting assembly includes:

[0021] An electric lifting rod and a lifting base are provided, wherein the electric lifting rod is vertically installed on the lifting base and the handrail base is located at the upper end of the electric lifting rod.

[0022] Furthermore, the handrail also includes a lifting guide assembly, which includes:

[0023] The guide seat and guide rod are provided. The guide seat has a guide through hole, and the guide rod is axially movably inserted into the guide through hole. The upper end of the guide rod is fixedly connected to the handrail base.

[0024] Furthermore, the guide rods are provided in multiple forms, and the multiple guide rods are parallel to each other in pairs, and the guide through holes are also provided in multiple forms.

[0025] Furthermore, the lifting guide assembly also includes a guide connecting strip that is fixedly connected to multiple guide rods.

[0026] Furthermore, the handrail also includes a decorative sleeve, which is fixedly disposed at the lower end of the handrail base, and the lifting assembly extends upward into the decorative sleeve to be fixedly connected to the handrail base.

[0027] The beneficial effects of this utility model are:

[0028] The armrest panel can be moved horizontally and rotated 360° relative to the armrest base through the central connecting mechanism. The armrest panel can also be raised and lowered by the lifting component to meet the needs of users with different body types and arm lengths, so that all users can have a comfortable armrest support experience. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0030] Figure 1 This is an overall structural diagram of the handrail in this embodiment;

[0031] Figure 2 This is an exploded view of the overall structure of the handrail in this embodiment;

[0032] Figure 3 This is a structural diagram of the intermediate connecting mechanism in this embodiment;

[0033] Figure 4 This is a structural diagram of the lifting assembly in this embodiment;

[0034] Figure 5 This is a structural diagram of the handrail base in this embodiment;

[0035] Figure 6 This is a structural diagram of the mounting base in this embodiment;

[0036] Figure 7 This is a structural diagram of the armrest panel in this embodiment;

[0037] Figure 8 This is a cross-sectional view of the armrest panel in this embodiment;

[0038] Figure 9 for Figure 8 A magnified view of a portion of the image;

[0039] 1-Lifting assembly, 11-Electric lifting rod, 12-Lifting base, 13-Guide seat, 14-Guide rod, 15-Guide through hole, 16-Guide connecting strip;

[0040] 2-Handrail base, 21-Limiting groove;

[0041] 3-Intermediate connecting mechanism, 31-First sliding member, 32-Second rotating member, 33-Fixed connecting part, 34-First ball bolt, 35-Sliding positioning groove, 36-Second ball bolt, 37-Mounting base, 38-Rotation positioning groove;

[0042] 4-Armrest panel, 41-Sliding channel, 42-Strip connecting through hole;

[0043] 5-Decorative Set. Detailed Implementation

[0044] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0045] Please see Figures 1 to 9 A handrail with lifting and 360° rotation adjustment functions is provided in a specific embodiment of the present utility model. The handrail includes a lifting component 1, a handrail base 2, an intermediate connecting mechanism 3, and a handrail panel 4. The handrail base 2 is disposed at the upper end of the lifting component 1, the handrail panel 4 is disposed above the handrail base 2, and the intermediate connecting mechanism 3 is connected between the handrail base 2 and the handrail panel 4.

[0046] Specifically, please refer to Figure 1 , Figure 2 , Figure 4 In this embodiment, the lifting assembly 1 includes an electric lifting rod 11 and a lifting base 12. The lifting base 12 is fixedly installed at a corresponding position on the seat or sofa. The lower end of the electric lifting rod 11 is installed on the lifting base 12, and the armrest base 2 is installed on the upper end of the electric lifting rod 11. The electric lifting rod 11 can move up and down relative to the lifting base 12 under electric drive, thereby driving the armrest base 2 and the armrest panel 4 on it to move up and down as a whole to have different support heights.

[0047] Moreover, with Figure 1 Taking the orientation shown as an example, in this embodiment, in order to ensure the stability of the lifting and lowering movement of the lifting assembly 1, a lifting guide assembly is also provided at the bottom of the handrail base 2. The lifting guide assembly includes guide rods 14 respectively set on the left and right sides of the electric lifting rod 11, and guide seats 13 respectively set on the left and right sides of the lifting base 12. Both guide seats 13 are vertically arranged, and both guide seats 13 are vertically provided with guide through holes 15. The two guide rods 14 are respectively movably inserted into a wire through hole, and the upper ends of the two guide rods 14 are fixedly connected to a fixed base plate, which is then fixedly connected to the handrail base 2.

[0048] Furthermore, in this embodiment, in order to prevent the guiding functions of the two guide rods 14 from conflicting with each other, a guide connecting strip 16 is fixedly connected between the two guide rods 14, and the two guide rods 14 fixedly connected by the guide connecting strip 16 are parallel to each other.

[0049] It should be noted that in this embodiment, due to the provision of a lifting guide assembly, the upper end of the electric lifting rod 11 can be hinged to the handrail base 2, and the lower end can be hinged to the lifting base 12. However, in other embodiments, other known limiting and guiding structures can be used to further improve the stability of the lifting assembly 1's lifting movement. Additionally, in certain specific situations or environments, a lifting guide assembly may not be necessary; however, in such cases, the upper end of the electric lifting rod 11 and the handrail base 2, and the lower end and the lifting base 12, must be fixedly connected to each other.

[0050] In other embodiments, only one guide rod 14 may be provided, and only one guide seat 13 and one guide through hole 15 may be provided respectively; of course, three or more guide rods 14 may be provided, and three or more guide seats 13 and guide through holes 15 may be provided respectively.

[0051] Further, please refer to Figure 7 and Figure 8 In this embodiment, the handrail panel 4 includes an upper plate and a lower plate. A sliding groove is provided on the lower plate. The upper plate and the lower plate are bolted together and cover the sliding groove to form a sliding channel 41. Moreover, two strip-shaped connecting through holes 42 are provided parallel to each other at the bottom of the sliding groove. The bottom of the sliding groove is also the bottom channel wall of the sliding channel 41.

[0052] For this, please refer to Figure 2 , Figure 3 , Figure 8 , Figure 9The intermediate connecting mechanism 3 includes a first sliding member 31 and a second rotating member 32. The width of the first sliding member 31 is approximately equal to the width of the sliding channel 41. The first sliding member 31 is generally rectangular in shape and is slidably disposed within the sliding channel 41. The upper end of the second rotating member 32 is vertically and integrally provided with two fixed connecting parts 33. Both fixed connecting parts 33 pass upward through a strip-shaped connecting through hole 42 to be fixedly connected to the first sliding member 31. The strip-shaped connecting through hole 42 extends along the length direction of the sliding channel 41, and the length direction of the sliding channel 41 is the same as the sliding direction of the first sliding member 31.

[0053] Furthermore, to facilitate the sliding of the handrail panel 4 and ensure that the handrail panel 4 can be stably stopped at a specific position without external force, a sliding locking mechanism is also provided between the bottom channel wall of the sliding channel 41 and the first sliding member 31. The sliding locking mechanism includes a first ball bolt 34 and a sliding positioning groove 35. The first ball bolt 34 is vertically fixed on the first sliding member 31. The lower end of the first ball bolt 34 is a ball head end and extends downward from the lower end face of the first sliding member 31. The sliding positioning groove 35 is a spherical groove that is adapted to the ball head end of the first ball bolt 34. Multiple sliding positioning grooves 35 are provided. Multiple sliding positioning grooves 35 are equidistantly arranged on the bottom channel wall of the sliding channel 41 and located between the two strip-shaped connecting through holes 42.

[0054] In this way, when the second rotating member 32 is set on the handrail base 2 and it is ensured that the second rotating member 32 cannot be displaced relative to the handrail base 2, technicians and users can manually push the handrail panel 4 to move relative to the handrail base 2 so that the handrail panel 4 can make linear displacement to adapt to various support requirements.

[0055] It should be noted that in other embodiments, the sliding locking mechanism may also be provided between other channel walls of the sliding channel 41 and the first sliding member 31; or, the sliding channel 41 may not be provided with a sliding locking mechanism, but the thickness of the first sliding member 31 may be set to be very close to or even equal to the thickness of the sliding channel 41, or the surface roughness of the first sliding member 31 may be increased, or the surface roughness of the channel wall of the sliding channel 41 may be increased, thereby increasing the sliding friction between the first sliding member 31 and the channel wall of the sliding channel 41, so that the first sliding member 31 cannot easily slide freely in the sliding channel 41, so as to facilitate the adjustment and use of the armrest.

[0056] Further, please refer to Figure 2 , Figure 3 , Figure 5In this embodiment, the handrail base 2 is fixedly installed at the upper end of the electric lifting rod 11 and the guide rod 14. The handrail base 2 is provided with a cylindrical limiting groove 21, and an annular groove is also provided at the arc-shaped groove wall of the limiting groove 21. The second rotating member 32 is also a cylinder, and an annular limiting protrusion is integrally provided on the outer circumference of the second rotating member 32.

[0057] In response, technicians can position the second rotating member 32 into the limiting groove 21 so that the second rotating member 32 can only rotate 360° within the limiting groove 21, thereby enabling the armrest panel 4 to rotate 360° relative to the armrest base 2 via the second rotating member 32.

[0058] In other embodiments, the limiting groove 21 can also be formed by combining a two-stage stepped through hole opened on the handrail base 2 and a mounting base 37 set at the bottom of the two-stage stepped through hole. The second rotating member 32 can also be configured as a two-stage stepped shaft, with each shaft having a small length, so that the second rotating member 32 can be installed into the limiting groove 21 more easily and ensure that the second rotating member 32 can also rotate 360° in the limiting groove 21.

[0059] Moreover, please see Figure 2 , Figure 3 , Figure 5 , Figure 6 In this embodiment, to facilitate the 360° rotation of the handrail panel 4 relative to the handrail base 2 and to ensure that the handrail panel 4 can stably stop at a specific position without external force, a rotation locking mechanism is also provided between the limiting groove 21 and the second rotating member 32. The limiting groove 21 is formed through the handrail base 2. The rotation locking mechanism includes a second ball bolt 36, a mounting base 37, and a rotation positioning groove 38. The mounting base 37 is fixedly mounted on a fixed base plate and located at the bottom of the limiting groove 21. The second ball bolts 36 are symmetrically arranged on the mounting base 37, with the ball ends of the second ball bolts 36 all pointing upwards and extending beyond the upper surface of the mounting base 37. The rotation positioning groove 38 is a spherical groove that matches the ball ends of the second ball bolts 36. Multiple rotation positioning grooves 38 are provided, and they are equidistantly arranged at the bottom end of the second rotating member 32 along the circumferential direction.

[0060] In this regard, since the second rotating member 32 is directly fixedly connected to the first sliding member 31, technicians and users can manually rotate the handrail panel 4 so that the handrail panel 4 can be rotated to any angle and stably stopped at any angle position to meet various support needs.

[0061] It should be noted that in other embodiments, the rotation locking mechanism may also be provided between the circumferential groove wall of the limiting groove 21 and the second rotating member 32; or, the limiting groove 21 may not be provided with a sliding locking mechanism, but the thickness of the annular limiting protrusion may be set to be very close to or even equal to the width of the annular groove, or the surface roughness of the annular limiting protrusion may be increased, or the surface roughness of the groove wall of the annular groove may be increased, thereby increasing the sliding friction between the first rotating member and the groove wall of the limiting groove 21, so that the first rotating member cannot easily rotate freely in the limiting groove 21, so as to facilitate the adjustment and use of the handrail.

[0062] Further, please refer to Figure 1 To protect the connection between the isolation handrail panel 4 and the lifting assembly 1, a decorative sleeve 5 is provided on the upper end of the anti-electric lifting rod 11. The decorative sleeve 5 is fixedly installed at the lower end of the handrail base 2. The electric lifting rod 11 and the guide rod 14 both extend upward into the decorative sleeve 5 to be fixedly connected to the handrail base 2.

[0063] Anything not mentioned above applies to existing technologies.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A handrail having a lifting and 360° rotation adjustment function, characterized in that, The handrail includes: The lifting assembly (1), the handrail base (2), the intermediate connecting mechanism (3), and the handrail panel (4) are provided. The handrail base (2) is located at the upper end of the lifting assembly (1), the handrail panel (4) is located above the handrail base (2), and the intermediate connecting mechanism (3) is connected between the handrail base (2) and the handrail panel (4). The intermediate connecting mechanism (3) includes: The first sliding member (31) is provided in the sliding channel (41) of the armrest panel (4), and the first sliding member (31) is movably disposed in the sliding channel (41); The second rotating component (32) is provided with a limiting groove (21) on the handrail base (2), and the second rotating component (32) is rotatably disposed in the limiting groove (21); The second rotating member (32) is fixedly connected to the first sliding member (31).

2. The handrail of claim 1, wherein The bottom of the sliding channel (41) is provided with at least one strip-shaped connecting through hole (42), and the upper end of the second rotating member (32) is integrally provided with a fixed connecting part (33). The fixed connecting part (33) passes upward through the strip-shaped connecting through hole (42) to be fixedly connected with the first sliding member (31).

3. The handrail of claim 2, wherein The first sliding member (31) is limited within the sliding channel (41), and the first sliding member (31) can only make linear displacement along the length direction of the sliding channel (41). The strip-shaped connecting through hole (42) extends along the length direction of the sliding channel (41).

4. The handrail of claim 1, wherein The handrail also includes a sliding locking mechanism, which includes: The first ball bolt (34) is installed on the first sliding member (31); A sliding positioning groove (35) is provided, which is adapted to the ball head end of the first ball bolt (34). Multiple sliding positioning grooves (35) are provided, and multiple sliding positioning grooves (35) are equidistantly arranged on the bottom channel wall of the sliding channel (41) along the movement direction of the first sliding member (31).

5. The handrail of claim 1, wherein The handrail also includes a rotation locking mechanism, which comprises: Mounting base (37) is fixedly disposed on the top of the lifting assembly (1) and located in the limiting groove (21); The second ball bolt (36) is vertically mounted on the mounting base (37); Rotary positioning groove (38) is provided in a plurality of such grooves, and the plurality of such grooves (38) are evenly arranged along the circumferential direction on the lower end face of the second rotating component (32). The rotary positioning groove (38) is adapted to the ball head end of the second ball bolt (36).

6. The handrail of claim 1, wherein The lifting assembly (1) includes: An electric lifting rod (11) and a lifting base (12) are provided. The electric lifting rod (11) is vertically installed on the lifting base (12), and the handrail base (2) is located at the upper end of the electric lifting rod (11).

7. The handrail of claim 1, wherein The handrail also includes a lifting guide assembly, which includes: A guide seat (13) and a guide rod (14), the guide seat (13) is provided with a guide through hole (15), the guide rod (14) is axially movably inserted into the guide through hole (15), and the upper end of the guide rod (14) is fixedly connected to the handrail base (2).

8. The handrail of claim 7, wherein The guide rod (14) is provided with a plurality of guide rods (14), and the plurality of guide rods (14) are parallel to each other in pairs, and the guide through hole (15) is also provided with a plurality of guide through holes (15) correspondingly.

9. The handrail of claim 8, wherein The lifting guide assembly further comprises a guide connecting strip (16) fixedly connected with the plurality of guide rods.

10. The handrail of claim 1, wherein The handrail further comprises a decorative sleeve (5) fixedly arranged at the lower end of the handrail base (2), and the lifting assembly (1) is upwardly inserted into the decorative sleeve (5) to be fixedly connected with the handrail base (2).

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