Handrail

Abstract

The utility model discloses a handrail which comprises a supporting frame and a bearing assembly, the supporting frame is provided with a moving assembly, and the bearing assembly is movably connected with the moving assembly. The moving assembly comprises a rotating seat and a sliding seat, the rotating seat is fixed to the armrest frame, and the sliding seat is rotationally installed on the rotating seat and is in sliding fit with the bearing assembly; a plurality of sliding gear grooves arranged in the length direction of the bearing assembly are formed in the side of the bearing assembly, a first through hole is formed in the sliding seat, a sliding elastic part on the side is provided with a sliding gear part protruding towards the sliding gear grooves, and the sliding gear part is embedded into the sliding gear grooves; the bearing assembly can slide back and forth relative to the supporting frame and can rotate around the vertical axis by means of the moving assembly, the functionality of the handrail is greatly expanded, particularly, the sliding gear function is achieved only through the structure of the handrail, extra parts are not needed, the structure is simplified, cost is reduced, and the assembling time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to an armrest. Background Technology

[0002] In modern furniture design, especially in the field of chair design, armrests are a key component, and the optimization of their functionality and user experience has always been the focus of the industry. Traditional chair armrests are relatively simple in design and have limited functionality. They can usually only provide basic arm support and cannot meet the increasingly diverse needs of users. Common traditional armrests have fixed positions and angles, which cannot adapt to the differences in body shape, sitting habits and usage needs of different users in various scenarios.

[0003] As people's demands for quality of life continue to rise, consumers expect handrails to have more adjustable functions, enabling flexible position and angle changes to adapt to the body's needs in different scenarios and improve the user experience. However, some existing adjustable handrails often use complex mechanical structures and rely on a large number of additional parts to achieve the adjustment function. This not only significantly increases production costs, but also makes the assembly process cumbersome and complicated, consuming a lot of manpower and time.

[0004] Against this backdrop, developing a new handrail design that can achieve flexible adjustment while maintaining a simple structure and reducing costs has become an urgent problem for the industry. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model provides a handrail, comprising a support frame and a support assembly. The support frame is equipped with a motion component, which movably connects the support assembly to it. The motion component includes a rotating seat and a sliding seat. The rotating seat is fixed to the support frame, and the sliding seat is rotatably mounted on the rotating seat and slidably engages with the support assembly. The support assembly has multiple sliding stop grooves arranged along its length on its side. The sliding seat has a first through hole, and the sliding elastic part on the side has a sliding stop part protruding into the sliding stop groove, which is embedded in the groove. With the help of the motion component, the support assembly can slide back and forth relative to the support frame and rotate around a vertical axis, greatly expanding the functionality of the handrail. In particular, the sliding stop function is achieved solely by its own structure, without the need for additional parts, simplifying the structure and reducing costs and assembly time.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A handrail includes a support frame and a support assembly. A motion component is mounted on the support frame, and the support assembly is mounted on the support frame via the motion component. The motion component includes a rotating seat and a sliding seat. The rotating seat is fixedly connected to the support frame, and the sliding seat is rotatably mounted on the rotating seat, slidingly engaging with the support assembly. The support assembly has several sliding stop grooves arranged along the length of the support assembly on the side of the sliding seat. The sliding seat has a first through hole extending vertically, and a sliding elastic portion is formed on the side of the first through hole. The sliding elastic portion has sliding stop parts protruding towards the sliding stop grooves. The sliding stop parts are disposed in the sliding stop grooves, and the sliding elastic portion is configured such that when the support assembly slides, the sliding elastic portion deforms to allow the sliding stop parts to switch between different sliding stop grooves.

[0008] The supporting component can slide and rotate relative to the support frame through the motion component, thus realizing the forward and backward sliding of the handrail and rotation about the vertical axis. Specifically, the rotating seat in the motion component is connected to the support frame, and the sliding seat and the supporting component are set on the support frame at the same time. The sliding seat can rotate as a rotating seat, and the supporting component rotates with the sliding seat. The supporting component can also slide relative to the sliding seat. The sliding position is realized by the supporting component and the rotating seat themselves, without the need for additional parts, keeping the structure and components simple and saving costs and assembly time. The sliding position part switches between different sliding position slots, so that the supporting component has multiple sliding positions, thereby maintaining the position of the supporting component after sliding. When the supporting component slides with the sliding seat and the sliding position part leaves the sliding position slot, the sliding elastic part deforms accordingly, and when the sliding position part enters the sliding position slot, the sliding elastic part returns to its deformation.

[0009] Preferably, there are two sliding elastic parts, which are symmetrically arranged left and right. The two symmetrical sliding elastic parts can maintain the stability of the sliding adjustment.

[0010] Preferably, the first through hole is an elongated hole, providing sufficient space for the sliding elastic part to deform inward.

[0011] Preferably, the sliding elastic part is located at the rear end of the sliding seat.

[0012] Preferably, an extension plate extends from the slide block along the length of the support assembly, and the extension plate is located at the lower end of the slide block. The extension plate is used to extend the overall length of the slide block, so that the contact distance between the slide block and the support assembly is long enough, thereby increasing the stability of the support assembly.

[0013] Preferably, the extension plate protrudes forward from the slide seat. When the sliding elastic part is located at the rear end of the slide seat, it is more reasonable for the extension plate to protrude forward from the slide seat, as this will not affect the sliding stroke.

[0014] Preferably, the lower part of the support component has a clearance groove, and the support frame is connected to the rotating seat through the clearance groove; the width of the extension plate is greater than the width of the clearance groove.

[0015] Preferably, the thickness of the extension plate is less than the thickness of the slide block. This maintains stability while saving material costs.

[0016] Preferably, a rotating groove is formed on the sliding seat, and the rotating seat is located in the rotating groove. Several rotating stop grooves are provided on the groove wall. The rotating seat has a second through hole extending vertically, and a rotating elastic part is formed beside the second through hole. The rotating elastic part has rotating stop parts protruding towards the rotating stop grooves. Similarly, the rotation of the supporting component does not require additional parts; it can be achieved through the structure of the rotating seat and the sliding seat themselves, further saving component costs and improving production and assembly efficiency.

[0017] Preferably, several rotation slots are evenly distributed along the circumference of the rotation slot. The rotation slots are distributed 360° in the rotation slot, allowing the support component to rotate 360°, thus improving flexibility.

[0018] Preferably, a clearance hole is provided on the lower end face of the rotating groove, and the support frame is connected to the rotating seat through the clearance hole; the rotating seat abuts against the lower end face of the rotating groove. The rotating seat presses the sliding seat onto the housing, and further presses the supporting component onto the support frame, which is a connection method that achieves multiple benefits.

[0019] Preferably, the second through hole is an arc-shaped elongated hole.

[0020] Preferably, the support assembly includes a housing and a support member, with the support member disposed on the housing; the bottom of the housing is provided with a clearance groove, and the support frame is provided with an upwardly protruding boss, which enters the housing from the clearance groove and connects to the rotating seat.

[0021] Preferably, the boss includes a rotating part and a connecting part. The rotating part is located in the clearance groove and has a circular cross-section. The connecting part is located above the rotating part and connected to the rotating seat. The connecting part has a rectangular cross-section. The circular cross-section of the rotating part allows it to rotate relative to the rotating seat in the clearance groove when the supporting part rotates, without interference. The rectangular cross-section of the connecting part enables circumferential limiting of its connection with the rotating seat. When the supporting assembly rotates, the sliding seat can rotate as if the rotating seat were rotating.

[0022] Preferably, the housing has a raised rib arranged along its length on each side of the clearance groove. The raised rib reduces the contact area with the sliding seat, making the sliding smoother.

[0023] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0024] The supporting component can slide and rotate relative to the support frame through the motion component, thus realizing the forward and backward sliding of the handrail and rotation about the vertical axis. Specifically, the rotating seat in the motion component is connected to the support frame, and the sliding seat and the supporting component are set on the support frame at the same time. The sliding seat can rotate as a rotating seat, and the supporting component rotates with the sliding seat. The supporting component can also slide relative to the sliding seat. The sliding position is realized by the supporting component and the rotating seat themselves, without the need for additional parts, keeping the structure and components simple and saving costs and assembly time. The sliding position part switches between different sliding position slots, so that the supporting component has multiple sliding positions, thereby maintaining the position of the supporting component after sliding. When the supporting component slides with the sliding seat and the sliding position part leaves the sliding position slot, the sliding elastic part deforms accordingly, and when the sliding position part enters the sliding position slot, the sliding elastic part returns to its deformation. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the handrail in an embodiment of the present invention;

[0026] Figure 2 This is a three-dimensional structural diagram of the present invention in which the motion component is disposed in the housing in an embodiment;

[0027] Figure 3 This is a three-dimensional structural diagram of the motion component in the embodiment of the present invention;

[0028] Figure 4 This is a cross-sectional view of the handrail in an embodiment of the present invention;

[0029] Figure 5 This is a three-dimensional structural diagram of the sliding seat in an embodiment of the present invention;

[0030] Figure 6 This is a three-dimensional structural diagram of the rotating seat in an embodiment of the present invention;

[0031] Figure 7 This is a perspective sectional view of the support frame in an embodiment of the present invention.

[0032] The reference numerals in the attached drawings are as follows: support frame 1; protrusion 11; rotating part 111; connecting part 112; supporting assembly 2; housing 21; surrounding plate 211; clearance groove 212; protrusion 213; supporting member 22; sliding stop groove 4; rotating seat 5; rotating elastic part 51; rotating stop part 52; second through hole 53; pressing part 54; sliding seat 6; sliding elastic part 61; sliding stop part 62; first through hole 63; rotating groove 64; rotating stop groove 641; clearance hole 642; extension plate 7; reinforcing rib 8. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0035] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] The specific implementation of this utility model is as follows:

[0037] like Figure 1 , 2 As shown, this utility model provides a handrail, including a support frame 1 and a support component 2. The support frame 1 is provided with a motion component, and the support component 2 is mounted on the support frame 1 through the motion component. The motion component includes a rotating seat 5 and a sliding seat 6. The rotating seat 5 is fixedly connected to the support frame 1, and the sliding seat 6 is rotatably mounted on the rotating seat 5, and the sliding seat 6 is slidably engaged with the support component 2. The support component 2 has a plurality of sliding stop grooves 4 arranged along the length direction of the support component 2 on the side of the sliding seat 6. The sliding seat 6 is provided with a first through hole 63 that runs vertically through it, and a sliding elastic part 61 is formed on the side of the first through hole 63. The sliding elastic part 61 has a sliding stop part 62 that protrudes toward the sliding stop groove 4. The sliding stop part 62 is disposed in the sliding stop groove 4. When the support component 2 slides, the sliding elastic part 61 is configured such that when the support component 2 slides, the sliding elastic part 61 deforms to allow the sliding stop part 62 to switch between different sliding stop grooves 4.

[0038] The supporting component 2 can slide and rotate relative to the support frame 1 through the motion component, thus realizing the forward and backward sliding of the handrail and the rotation around the vertical axis. Specifically, the rotating seat 5 in the motion component is connected to the support frame 1, and simultaneously sets the sliding seat 6 and the supporting component 2 on the support frame. The sliding seat 6 can rotate equivalent to the rotating seat 5, and the supporting component 2 rotates together with the sliding seat 6. The supporting component 2 can also slide relative to the sliding seat 6. The sliding position is realized only by the structure of the supporting component 2 and the rotating seat 5 themselves, without the need for additional parts, keeping the structure and components simple, and saving costs and assembly time. The sliding position part 62 switches between different sliding position slots 4, so that the supporting component 2 has multiple sliding positions, thereby maintaining the position of the supporting component 2 after sliding. When the supporting component 2 slides with the sliding seat 6 and the sliding position part 62 leaves the sliding position slot 4, the sliding elastic part 61 deforms accordingly, and when the sliding position part 62 enters the sliding position slot 4, the sliding elastic part 61 returns to its deformed state.

[0039] Specifically, such as Figure 1-4 As shown, the support frame 1 is used to connect the seat, and the support component 2 is used to support the human arm. The support component 2 includes a housing 21 and a support member 22, with the support member 22 disposed on the housing 21. There is an accommodating space between the support member 22 and the housing 21. The bottom of the housing 21 has an upwardly protruding surrounding plate 211, which is closed on all sides. The sliding stop groove 4 is located on the left and right sides of the surrounding plate 211 and at the rear. Correspondingly, the sliding elastic part 61 is located at the rear end of the sliding seat 6. There are two sliding elastic parts 61, which are symmetrically arranged on the left and right sides to maintain the stability of the sliding adjustment.

[0040] The bottom of the housing 21 is provided with a clearance groove 212, which is arranged along the length of the housing 21. A rotating groove 64 is provided on the sliding seat 6, and the rotating seat 5 is located in the rotating groove 64. A clearance hole 642 is provided on the lower end face of the rotating groove 64. The support frame 1 is provided with an upwardly protruding boss 11. The boss 11 passes through the clearance groove 212 and enters the housing 21, and then passes through the clearance hole 642 to connect with the rotating seat 5. The rotating seat 5 abuts against the lower end face of the rotating groove 64. The upper part of the rotating seat 5 is also provided with two symmetrically arranged downward pressing parts 54. The downward pressing parts 54 protrude radially and press the sliding seat 6 onto the housing 21 after the rotating seat 5 is connected to the boss 11. It further presses the supporting component 2 onto the support frame 1, which is a connection method that achieves multiple benefits. The housing 21 is provided with a protruding strip 213 arranged along its length on each side of the clearance groove 212. The protruding strip 213 reduces the contact area with the sliding seat 6, making the sliding smoother.

[0041] like Figure 6 , 7As shown, the boss 11 includes a rotating part 111 and a connecting part 112. The rotating part 111 is located in the relief groove 212 and has a circular cross-section. The connecting part 112 is located above the rotating part 111 and is connected to the rotating seat 5. The connecting part 112 has a rectangular cross-section and is inserted into the corresponding opening below the rotating seat 5. The rotating seat 5 is connected to the boss 11 by screws. The circular cross-section of the rotating part 111 allows the rotating part 111 to rotate relative to the relief groove 212 when the supporting part rotates, without interference. The rectangular cross-section of the connecting part 112 enables circumferential positioning of its connection with the rotating seat 5. When the supporting component 2 rotates, the sliding seat 6 can rotate in accordance with the rotating seat 5.

[0042] like Figure 3-6 As shown, the rotating groove 64 has several rotating stop grooves 641 on its groove wall; the rotating seat 5 has a second through hole 53 that runs vertically through it, and a rotating elastic part 51 is formed on the side of the second through hole 53. The rotating elastic part 51 has a rotating stop part 52 that protrudes towards the rotating stop groove 641; similarly, the rotation of the supporting component 2 does not require additional parts, and can be achieved through the structure of the rotating seat 5 and the sliding seat 6 themselves, further saving parts costs and improving production assembly efficiency; furthermore, the several rotating stop grooves 641 are evenly distributed around the circumference of the rotating groove 64, and the rotating stop grooves 641 are distributed 360° in the rotating groove 64, so that the supporting component 2 can rotate 360°, with better flexibility. In addition, the first through hole 63 is an elongated hole, so that the sliding elastic part 61 has sufficient space when it deforms inward; both the rotating elastic part 51 and the sliding elastic part 61 rely on their own material elasticity to achieve deformation.

[0043] Along the length of the support component 2, an extension plate 7 extends from the sliding seat 6. The extension plate 7 is located at the lower end of the sliding seat 6 and protrudes forward from the sliding seat 6. The extension plate 7 is used to extend the overall length of the sliding seat 6, so that the contact distance between the sliding seat 6 and the support component 2 is long enough, thereby increasing the stability of the support component 22. When the sliding elastic part 61 is located at the rear end of the sliding seat 6, it is more reasonable for the extension plate 7 to protrude forward from the sliding seat 6, which will not affect the sliding stroke. In addition, the width of the extension plate 7 is greater than the width of the clearance groove 212, and the thickness of the extension plate 7 is less than the thickness of the sliding seat 6, which saves material costs while maintaining stability.

[0044] The sliding seat 6 also has multiple cutouts to reduce the amount of material used, and a reinforcing rib 8 is provided between the front end of the sliding seat 6 and the extension plate 7 to strengthen the strength of the extension plate 7.

Claims

1. A handrail, characterized in that: The device includes a support frame and a support assembly. The support frame has a motion component, and the support assembly is mounted on the support frame via the motion component. The motion component includes a rotating seat and a sliding seat. The rotating seat is fixedly connected to the support frame, and the sliding seat is rotatably mounted on the rotating seat, slidingly engaging with the support assembly. The support assembly has several sliding stop grooves arranged along the length of the support assembly on the side of the sliding seat. The sliding seat has a first through hole extending vertically, and a sliding elastic part is formed on the side of the first through hole. The sliding elastic part has a sliding stop portion protruding towards the sliding stop groove. The sliding stop portion is disposed in the sliding stop groove, and the sliding elastic part is configured such that when the support assembly slides, the sliding elastic part deforms to allow the sliding stop portion to switch between different sliding stop grooves.

2. The handrail according to claim 1, characterized in that: There are two sliding elastic parts, which are arranged symmetrically on the left and right.

3. The handrail according to claim 1, characterized in that: The sliding elastic part is located at the rear end of the sliding seat.

4. The handrail according to claim 1, characterized in that: An extension plate extends from the slide seat along the length of the support assembly, and the extension plate is located at the lower end of the slide seat.

5. The handrail according to claim 4, characterized in that: The extension plate protrudes forward from the sliding seat.

6. The handrail according to claim 4, characterized in that: The lower part of the support component has a clearance groove, and the support frame is connected to the rotating seat through the clearance groove; the width of the extension plate is greater than the width of the clearance groove.

7. The handrail according to claim 4, characterized in that: The thickness of the extension plate is less than the thickness of the slide block.

8. The handrail according to claim 1, characterized in that: A rotating groove is provided on the sliding seat, the rotating seat is located in the rotating groove, and a number of rotating stop grooves are provided on the groove wall of the rotating groove; a second through hole is provided on the rotating seat and a rotating elastic part is formed on the side of the second through hole, and a rotating stop part protruding towards the rotating stop groove is provided on the rotating elastic part.

9. The handrail according to claim 8, characterized in that: An clearance hole is provided on the lower end face of the rotating groove, and the support frame is connected to the rotating seat through the clearance hole; the rotating seat abuts against the lower end face of the rotating groove.

10. The handrail according to claim 1, characterized in that: The support assembly includes a housing and a support member, which is mounted on the housing. The bottom of the housing is provided with a clearance groove, and the support frame is provided with an upwardly protruding boss. The boss enters the housing from the clearance groove and is connected to the rotating seat.

11. The handrail according to claim 10, characterized in that: The boss includes a rotating part and a connecting part. The rotating part is located in the clearance groove and has a circular cross-section. The connecting part is located above the rotating part and is connected to the rotating seat. The connecting part has a rectangular cross-section.

12. The handrail according to claim 10, characterized in that: The housing has a raised strip on each side of the clearance groove, arranged along its length.

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