Adjustable armrest
By designing a combination of mounting blocks, mating parts, and elastic components for adjustable armrests, the problem of loose armrests was solved, achieving stable angle adjustment and comfortable support, thus improving the user experience and lifespan of the seat.
Patent Information
- Application Number
- CN202520889413.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-05-07
AI Technical Summary
The existing adjustment mechanism of the seat armrest is prone to loosening, resulting in unstable support, making it difficult to meet the comfort needs of different users and affecting its service life.
An adjustable handrail is designed. Through the structure of a first handrail body, a second handrail body, and an adjustment component, the combination of mounting blocks, mating parts, and elastic parts enables the rotating part to rotate stably within the limiting part, providing a double locking effect and improving adjustment stability.
It achieves stable angle adjustment of the armrests, preventing them from loosening and improving user comfort and the lifespan of the seat.
Smart Images
Figure CN223968887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seating technology, and in particular to an adjustable armrest. Background Technology
[0002] Chairs are an essential item in modern life, widely used in various companies, homes, and other public places. The comfort of a chair directly affects people's quality of work and life. Currently, many chairs on the market are mass-produced to fixed sizes, including their armrests and backrests; however, users are not fixed, and their ages, body types, and other characteristics vary greatly. It is difficult for mass-produced chairs of fixed sizes to meet the needs of all users.
[0003] For example, the armrests of a chair, as the support for the hands when sitting or lying down, have an angle that determines whether the user can achieve a comfortable hand position. Traditional armrests, in order to accommodate the user's comfortable position when resting, often have a rotating structure designed on the armrest support rod, allowing the armrest to rotate around this axis. However, the armrest surface cannot rotate. When resting their hands on the armrest surface, different users usually have different body shapes. When different users sit on the chair to rest, because the height of the first and second armrests is fixed, it will obviously reduce the user's rest quality and may even lead to hand or shoulder pain.
[0004] Later, an adjustable armrest structure appeared on the market. The armrest consists of a first plate and a second plate. One end of the first plate is hinged to one end of the second plate by a bolt. The first plate can swing around the bolt. This method uses the bolt as the hinge axis. When the first plate swings, it generates circumferential friction on the bolt. After repeated use, the bolt is prone to loosening, and the support force is unstable. This will make it difficult for the arms to obtain continuous and stable support during use, reducing the service life of the chair.
[0005] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content
[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide an adjustable handrail. Through the structural design of a first handrail body, a second handrail body, and an adjustment component, when the second handrail body is in the adjusted position, one end of the rotating component is confined within a first limiting portion; when the second handrail body is in the initial position, one end of the rotating component is confined within a second limiting portion, enabling angle swing adjustment. In particular, the design of the first limiting portion, the second limiting portion, and the elastic component ensures that during adjustment, one end of the rotating component is confined within either the first or second limiting portion, thereby improving stability during adjustment, preventing loosening, and creating a double locking effect on the driving component.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] An adjustable armrest includes a first armrest body and a second armrest body for supporting the user's arm. The second armrest body can rotate relative to the first armrest body between an adjusted position and an initial position via an adjustment component.
[0009] The adjustment assembly includes at least a mounting block and a mating component. The mounting block has a mounting groove recessed on its periphery and a rotating part protruding in the mounting groove. The mating component is movably mounted on the rotating part. An elastic element is also provided between the mating component and the mounting groove, which allows the mating component to rotate around the rotating part.
[0010] The second handrail body includes at least a driving component. A movable groove is provided through one end of the driving component near the mounting block. A first limiting part and a second limiting part are provided within the movable groove and are connected to each other. The driving component is connected to the mounting block via a rotating component.
[0011] When the second handrail body is in the adjusted position, one end of the rotating member is restricted within the first limiting part; when the second handrail body is in the initial position, one end of the rotating member is restricted within the second limiting part.
[0012] As a preferred embodiment, the mounting block is further provided with a through groove communicating with the mounting slot. The through groove is provided with a first limiting groove and a second limiting groove that are connected to each other. When the second handrail body is in the adjustment position, the rotating component is located in the first limiting groove. When the second handrail body is in the initial position, the rotating component is located in the second limiting groove.
[0013] As a preferred embodiment, the mating component is provided with a mating hole for rotatably engaging with the rotating part; the mating component is rotatably connected to the rotating part through a through hole.
[0014] As a preferred embodiment, a first guide rail is also provided in the through groove. The two ends of the first guide rail are respectively connected to the first limiting groove and the second limiting groove to avoid the sliding not reaching the correct position and affecting the use. The design of the guide rail allows it to slide along the preset track, thus not affecting the use.
[0015] As a preferred embodiment, the movable groove is further provided with a second guide rail, the two ends of which are respectively connected to the first limiting part and the second limiting part, to avoid the sliding not reaching the correct position and affecting the use. The design of the guide rail allows it to slide along a preset track, thus not affecting the use.
[0016] As a preferred embodiment, one end of the first limiting part is provided with a guide slope, so that the rotating part can slide out along the guide slope during the switching process, thereby not affecting the use.
[0017] As a preferred embodiment, the mating component is further provided with a connecting hole, and when the mating component is disposed on the rotating part, the first limiting groove and the connecting hole are connected.
[0018] As a preferred embodiment, the mating component is further provided with a first abutting groove; the mounting groove is provided with a second abutting groove; the elastic component includes an elastic arm, a first torsion arm and a second torsion arm; the first torsion arm is connected to one end of the elastic arm, and the second torsion arm is connected to the other end of the elastic arm; the first torsion arm is fixed at the first abutting groove; the second torsion arm is fixed at the second abutting groove.
[0019] As a preferred embodiment, the adjustable handrail further includes a movable component and a sliding component. The first handrail body is disposed on the movable component. The bottom end face of the movable component is provided with a sliding groove, and a wave-shaped length adjustment guide plate is disposed in the sliding groove. The sliding component is provided with an adjustment guide protrusion, and the adjustment guide protrusion can slidably contact the side of the length adjustment guide plate, so that the first handrail body can slide along the length direction of the movable component to change its overall adjustment angle.
[0020] As a preferred embodiment, the bottom end face of the slider is further provided with a mating portion for connecting with an external seat, so as to facilitate subsequent connection and use with the seat.
[0021] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly relies on the structural design of a first handrail body, a second handrail body, and an adjustment component. The adjustment component includes at least a mounting block and a mating part. The mounting block has a recessed mounting groove on its periphery, and a rotating part protrudes from the mounting groove. The mating part is movably mounted on the rotating part. The second handrail body includes at least a driving component. The end of the driving component near the mounting block has a through-hole groove. The through-hole has a first limiting part and a second limiting part that are connected to each other. The driving component is connected to the mounting block through the rotating part. Thus, when the second handrail body is in the adjusted position, one end of the rotating part is restricted within the first limiting part; when the second handrail body is in the initial position, one end of the rotating part is restricted within the second limiting part, allowing it to achieve angle swing adjustment.
[0022] In particular, the design of the first limiting part and the second limiting part ensures that one end of the rotating part is restricted within the first limiting part or the second limiting part during adjustment, thereby improving the stability during adjustment and preventing it from loosening.
[0023] Finally, the design of the elastic element provides stable support to the mating parts when adjusting the position, forming a double locking effect on the driving part in conjunction with the first limiting part.
[0024] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0025] Figure 1 This is a perspective view (initial position) of an embodiment of the present utility model;
[0026] Figure 2 This is a perspective view (adjusting position) of an embodiment of the present utility model;
[0027] Figure 3 This is an exploded view of an embodiment of the present utility model;
[0028] Figure 4 This is another exploded view of an embodiment of the present utility model;
[0029] Figure 5 This is a cross-sectional view of an embodiment of the present utility model;
[0030] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;
[0031] Figure 7 This is a partial structural schematic diagram of an embodiment of the present utility model;
[0032] Figure 8 This is another exploded view of an embodiment of the present utility model.
[0033] Explanation of reference numerals in the attached diagram:
[0034] 10. Main body of the first handrail
[0035] 20. Second handrail body 21. Drive component
[0036] 22. Activity slot 221. First limited section
[0037] 222, Second limiting part; 223, Guide slope
[0038] 224. Second Guiding Track
[0039] 30. Adjustment component; 31. Mounting block
[0040] 311. Mounting groove; 312. Rotating part
[0041] 313. Through groove; 314. First limiting groove
[0042] 315. Second limiting groove; 316. First guide rail
[0043] 32. Mating parts; 33. Elastic parts
[0044] 321. Mating hole; 322. Connecting hole
[0045] 323. First abutment groove
[0046] 331. Elastic arm; 332. First torsion arm
[0047] 333, Second torsion arm; 34, Rotating component
[0048] 40. Moving parts; 41. Sliding grooves
[0049] 411. Length Adjustment Guide Plate
[0050] 50. Sliding component; 51. Adjustment guide protrusion
[0051] 52. Docking section. Detailed Implementation
[0052] Please refer to Figures 1 to 8 As shown, it illustrates the specific structure of an embodiment of the present invention.
[0053] In the description of this utility model, it should be noted that the directional terms such as "up", "down", "front", "back", "left", and "right" indicate the orientation and positional relationship based on the accompanying drawings or the orientation or positional relationship shown when wearing and using the device normally. 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. They should not be construed as limiting the specific protection scope of this utility model.
[0054] An adjustable handrail includes a first handrail body 10, a second handrail body 20, and an adjustment component 30.
[0055] The first armrest body 10 and the second armrest body 20 are used to support the user's arm. The second armrest body 20 can rotate between the adjusted position and the initial position relative to the first armrest body 10 through the adjustment component 30.
[0056] The second handrail body 20 includes at least a driving member 21. The driving member 21 has a through-hole groove 22 at one end near the mounting block 31. The through-hole 22 has a first limiting part 221 and a second limiting part 222 that are connected to each other. The driving member 21 is connected to the mounting block 31 through a rotating member 34. Preferably, one end of the first limiting part 221 is provided with a guide slope 223, so that the rotating member 34 can slide out along the guide slope 223 during the switching process, so as not to affect the use.
[0057] Preferably, a second guide rail 224 is also provided in the movable groove 22. The two ends of the second guide rail 224 are respectively connected to the first limiting part 221 and the second limiting part 222 to avoid the sliding not being in place and affecting the use. The design of the guide rail allows it to slide along the preset track, so as not to affect the use.
[0058] The adjustment component 30 includes at least a mounting block 31 and a mating part 32. The mounting block 31 has a mounting groove 311 recessed on its periphery, and a rotating part 312 protruding inside the mounting groove 311. The mating part 32 is movably disposed on the rotating part 312.
[0059] Preferably, the mounting block 31 is further provided with a through groove 313 communicating with the mounting groove 311. The through groove 313 is provided with a first limiting groove 314 and a second limiting groove 315 communicating with each other. When the second handrail body 20 is in the adjustment position, the rotating member 34 is located in the first limiting groove 314. When the second handrail body 20 is in the initial position, the rotating member 34 is located in the second limiting groove 315.
[0060] Preferably, a first guide rail 316 is also provided in the through groove 313. The two ends of the first guide rail 316 are respectively connected to the first limiting groove 314 and the second limiting groove 315 to avoid the sliding not reaching the position and affecting the use. The design of the guide rail allows it to slide along the preset track, so as not to affect the use.
[0061] Preferably, the mating member 32 is provided with a mating hole 321 for rotatably engaging with the rotating part 312; the mating member 32 is rotatably connected to the rotating part 312 through a through hole.
[0062] Preferably, the mating part 32 is further provided with a connecting hole 322. When the mating part 32 is disposed on the rotating part 312, the first limiting groove 314 and the connecting hole 322 are connected.
[0063] An elastic element 33 is also provided between the mating component 32 and the mounting groove 311, which allows the mating component 32 to rotate around the rotating part 312; preferably, the mating component 32 is also provided with a first abutting groove 323; the mounting groove 311 is provided with a second abutting groove; the elastic element 33 includes an elastic arm 331, a first torsion arm 332 and a second torsion arm 333; the first torsion arm 332 is connected to one end of the elastic arm 331, and the second torsion arm 333 is connected to the other end of the elastic arm 331; the first torsion arm 332 is fixed at the first abutting groove 323; the second torsion arm 333 is fixed at the second abutting groove.
[0064] When the second handrail body 20 is in the adjusted position, one end of the rotating member 34 is restricted within the first limiting part; when the second handrail body 20 is in the initial position, one end of the rotating member 34 is restricted within the second limiting part.
[0065] Preferably, the adjustable handrail further includes a movable member 40 and a sliding member 50. The first handrail body 10 is disposed on the movable member 40. The bottom end surface of the movable member 40 is provided with a sliding groove 41. A wave-shaped length adjustment guide plate 411 is disposed in the sliding groove 41. The sliding member 50 is provided with an adjustment guide protrusion 51. The adjustment guide protrusion 51 can slide in contact with the side of the length adjustment guide plate 411, so that the first handrail body 10 can slide along the length direction of the movable member 40 to change its overall adjustment angle. In actual adjustment, it is only necessary to provide a pushing force to the first handrail body 10 so that the sliding member 50 can slide with the sliding groove 41 and the linkage adjustment guide protrusion 51 slides at the length adjustment guide plate 411, thereby completing the adjustment.
[0066] Preferably, the bottom end face of the sliding member 50 is further provided with a docking portion 52 for connecting with an external seat, so as to facilitate subsequent connection and use with the seat. When the armrest is installed at the armrest mounting point of the seat, its docking portion 52 is slidably connected to the armrest mounting point. For example, the armrest mounting point is provided with a movable member, and the docking portion 52 is connected to the sliding groove 41 and can rotate with the axis of the movable member 40, thereby meeting the needs of most users for hand position and making the armrest more comfortable to use.
[0067] The general usage process of this embodiment is described in detail below:
[0068] In the unadjusted state, the rotating member 34 is located in the first limiting groove 314, and one end of the rotating member 34 is restricted in the second limiting part. When it is necessary to adjust the second handrail body 20, it is only necessary to apply a pushing force towards the second handrail body 20 to apply a pushing force to the driving member 21, so that the driving member 21 drives the mating member 32 to rotate through the rotating member 34, so that the rotating member 34 slides along the first guide rail 316 and the second guide rail 224 towards the corresponding first limiting groove 314 and first limiting part, until the rotating member 34 is restricted in the first limiting groove 314 and the first limiting part, respectively. At this time, the elastic member 33 provides stable support force to the mating member 32.
[0069] The key design feature of this utility model lies in its structural design of a first handrail body, a second handrail body, and an adjustment component. The adjustment component includes at least a mounting block and a mating part. The mounting block has a recessed mounting groove on its periphery, and a rotating part protrudes from the mounting groove. The mating part is movably mounted on the rotating part. The second handrail body includes at least a driving component. A movable groove is provided through the end of the driving component near the mounting block. A first limiting part and a second limiting part are connected within the movable groove. The driving component is connected to the mounting block via the rotating part. Thus, when the second handrail body is in the adjusted position, one end of the rotating part is confined within the first limiting part; when the second handrail body is in the initial position, one end of the rotating part is confined within the second limiting part, allowing for angle swing adjustment.
[0070] In particular, the design of the first limiting part and the second limiting part ensures that one end of the rotating part is restricted within the first limiting part or the second limiting part during adjustment, thereby improving the stability during adjustment and preventing it from loosening.
[0071] Finally, the design of the elastic element provides stable support to the mating parts when adjusting the position, forming a double locking effect on the driving part in conjunction with the first limiting part.
[0072] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. An adjustable armrest comprising a first armrest body for supporting an arm of a user, a second armrest body, characterised in that: The second handrail body is rotatable relative to the first handrail body between an adjusting position and an initial position through an adjusting assembly; The adjusting assembly comprises at least a mounting block and a cooperating piece, a recessed installation groove is formed on the peripheral side of the mounting block, a rotating part is protruded in the installation groove, and the cooperating piece is movably arranged on the rotating part; an elastic member is arranged between the cooperating piece and the installation groove to provide rotation of the cooperating piece around the rotating part; The second handrail body comprises at least a driving piece, an active slot is formed through one end of the driving piece close to the mounting block, a first limiting part and a second limiting part are arranged in the active slot in communication, and the driving piece is connected to the mounting block through a rotating piece, When the second handrail body is in the adjusting position, one end of the rotating piece is limited in the first limiting part; when the second handrail body is in the initial position, one end of the rotating piece is limited in the second limiting part.
2. The adjustable handrail of claim 1, wherein: A through groove is further arranged on the mounting block in communication with the installation groove, a first limiting groove and a second limiting groove are arranged in the through groove in communication, when the second handrail body is in the adjusting position, the rotating piece is in the first limiting groove, and when the second handrail body is in the initial position, the rotating piece is in the second limiting groove.
3. The adjustable handrail of claim 1, wherein: A cooperating hole is arranged on the cooperating piece for rotation cooperation with the rotating part; the cooperating piece is rotatably connected to the rotating part through the through hole.
4. The adjustable handrail of claim 2, wherein: A first guide rail is further arranged in the through groove, and two ends of the first guide rail are connected to the first limiting groove and the second limiting groove, respectively.
5. The adjustable handrail of claim 1, wherein: A second guide rail is further arranged in the active slot, and two ends of the second guide rail are connected to the first limiting part and the second limiting part, respectively.
6. The adjustable handrail of claim 1, wherein: A guide inclined surface is arranged at one end of the first limiting part.
7. The adjustable handrail of claim 2, wherein: A connecting hole is further arranged on the cooperating piece, when the cooperating piece is arranged on the rotating part, the first limiting groove and the connecting hole are in communication.
8. The adjustable handrail of claim 1, wherein: A first abutting groove is further arranged on the cooperating piece; a second abutting groove is arranged in the installation groove; the elastic member comprises an elastic arm, a first torsion arm and a second torsion arm; the first torsion arm is connected to one end of the elastic arm, and the second torsion arm is connected to the other end of the elastic arm; the first torsion arm is fixedly arranged at the first abutting groove; and the second torsion arm is fixedly arranged at the second abutting groove.
9. The adjustable handrail of claim 1, wherein: The adjustable handrail further comprises a moving piece and a sliding piece, the first handrail body is arranged on the moving piece; a sliding groove is arranged on the bottom end surface of the moving piece, a length adjusting guide piece in a wave shape is arranged in the sliding groove, an adjusting guide convex part is arranged on the sliding piece, and the adjusting guide convex part is slidably contacted on the side surface of the length adjusting guide piece.
10. The adjustable handrail of claim 9, wherein: A butt joint part for connecting with an external seat is further arranged on the bottom end surface of the sliding piece.