Multi-angle rotary adjusting handrail with lock
By designing a multi-angle rotation adjustment handrail with lock, using a variety of adjustment components and locking structures, the problem that existing handrails are difficult to adjust and cannot be stably locked after adjustment in multiple directions and angles is achieved, and free adjustment and stable locking are achieved in multiple directions and multiple angles.
Patent Information
- Application Number
- CN202421439469.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The existing handrail structure is relatively simple, lacks multi-functional adjustment function, making it difficult to adjust in multiple directions and angles, and it cannot be stably locked after adjustment.
A multi-angle rotation adjustment handrail with lock is designed, adopting lifting adjustment components, rotation adjustment components, front and rear sliding adjustment components and down pressure adjustment components. Combining structures such as locking grooves and locking rods, it realizes free adjustment in multiple directions and multiple angles, and remains stable through locking function.
The handrail is freely adjusted in multiple directions and angles, and the adjustment is maintained through the locking function, avoiding the problem of easy change.
Smart Images
Figure CN222656636U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of armrests, and in particular relates to a multi-angle rotating and adjustable armrest with a lock. Background Art
[0002] The armrest is a standard part of the seat and is used to support the arms. The armrest is generally fixed to the seat body by fixing screws. The existing armrest structure is relatively simple and does not have multi-functional adjustment. How to ensure that the armrest can be adjusted in multiple directions and angles, and how to ensure that it can be stably locked after adjustment has become an important technical problem. For this reason, the utility model proposes a multi-angle rotating adjustable armrest with a lock. Utility Model Content
[0003] The purpose of the utility model is to provide a multi-angle rotation adjustable armrest with a lock to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-angle rotation adjustment armrest with a lock, comprising an armrest plate, a lifting adjustment component is arranged at the bottom of one end of the connecting seat, the lifting adjustment component is connected to the connecting seat through a rotation adjustment component, an armrest plate is arranged above the connecting seat, the armrest plate can perform longitudinal downward adjustment movement through a downward adjustment component, a front and rear adjustment component which can be used for forward and backward sliding adjustment of the armrest plate is arranged in the armrest plate, and a swing adjustment component is arranged between the front and rear adjustment component and the downward adjustment component.
[0005] Preferably, the front and rear adjustment assembly includes a limiting slider, and the limiting slider is limitedly slidingly arranged inside the armrest plate, one side of the limiting slider is connected to a retractable gear telescopic block by a spring, and the other side of the limiting slider is connected to a retractable locking rod A by a spring, a plurality of locking grooves A are arranged on one side of the interior of the armrest plate, and the locking rod A can be locked with any one of the locking grooves A, a plurality of gear grooves A are arranged on the other side of the interior of the armrest plate, and the gear telescopic block can be engaged with any one of the gear grooves A, a trigger rod is integrally arranged on the top of the locking rod A, a limiting plate for limiting the movement stroke of the trigger rod is arranged on the limiting slider, an installation shaft rod is fixedly arranged inside the armrest plate, a toggle rod for toggling the trigger rod to slide is rotatably arranged on the installation shaft rod, and a switch rod A for pushing the toggle rod to rotate is arranged on the outside of the armrest plate.
[0006] Preferably, the swing adjustment component includes an embedded groove provided on a limiting slider, a rotating wheel is movably provided in the embedded groove, a half-arc of the bottom of the rotating wheel is concave to form a travel groove, a limiting block is provided in the embedded groove to cooperate with the travel groove to limit the rotation angle range of the rotating wheel, an elastically retractable shifting steel ball C is provided on the other half-arc of the bottom of the rotating wheel, a plurality of shifting grooves B are distributed circumferentially at the bottom of the embedded groove, the shifting steel ball C can engage with any one of the shifting grooves B, a plurality of locking grooves B are provided on the edge of the rotating wheel, a channel matching the locking groove B is provided on one side of the embedded groove, a locking steel ball for locking the rotation of the rotating wheel is placed in the locking groove B corresponding to the channel, the other end of the channel is blocked by a locking rod A, a receiving groove for accommodating the locking steel ball is provided on the locking rod A, and a strip-shaped connecting opening is provided at the bottom of the armrest plate.
[0007] Preferably, the downward pressure adjustment component includes a rotating mounting slot provided at one end of the connecting seat, and a downward pressure rotating head seat rotatably installed in the rotating mounting slot by a rotating shaft, the top of the downward pressure rotating head seat moves through the connecting opening and the limiting slider in turn, and the top of the downward pressure rotating head seat is fixedly connected to the rotating wheel located in the embedded groove, a pair of elastically retractable gear steel balls A are provided on the bottom arc of the downward pressure rotating head seat, at least two pairs of gear grooves D are provided inside the rotating mounting slot, and the gear steel ball A can engage with any pair of gear grooves D, a protrusion is provided on one side of the downward pressure rotating head seat, a switch rod B for preventing the protrusion from rotating is provided on one side of the protrusion, the switch rod B is installed on one side of the connecting seat by spring telescopic movement, an unlocking groove for the protrusion to pass through is provided on the switch rod B, and when the switch rod B is pressed into the connecting seat, the unlocking groove is located on the rotation path of the protrusion, and an anti-drop rod for limiting the telescopic movement distance of the switch rod B is also provided on the connecting seat.
[0008] Preferably, the rotation adjustment component includes a base rotatably mounted on one end of the bottom of the connecting seat, a circle of gear grooves C are distributed circumferentially on the base, and a plurality of elastically retractable gear steel balls B are distributed circumferentially on the bottom of the connecting seat, and the gear steel balls B can engage with any gear groove C.
[0009] Preferably, the lifting and adjusting assembly includes a supporting outer column fixedly mounted on the bottom of the base, a supporting inner column which can be longitudinally telescopically arranged inside the supporting outer column, a plurality of gear slots are longitudinally distributed on the supporting inner column, a locking hook rod is arranged on the inner side of the supporting inner column, one end of the locking hook rod can be engaged and connected with any one of the gear slots, the top end of the locking hook rod is rotatably connected to the inner side of the top end of the supporting outer column through a connecting shaft, and a paddle which can drive the locking hook rod to rotate is arranged on the outer side of the supporting outer column.
[0010] Preferably, a spring mounting groove is provided at the top of the paddle, a connecting guide column aligned with the spring mounting groove is provided at the bottom of the base, a return spring is connected between the connecting guide column and the spring mounting groove, the bottom end of the supporting inner column extends to the outside of the bottom end of the supporting outer column, and the bottom end of the supporting inner column is fixedly connected to a mounting plate through a connecting head.
[0011] Compared with the prior art, the beneficial effect of the utility model is that the armrest of the utility model can integrate multiple adjustment functions such as front and rear sliding adjustment, rotation adjustment, lifting adjustment, angle adjustment, and downward pressure adjustment, so that the armrest can be freely adjusted in multiple directions and angles, and with the locking function, the adjusted armrest can be stably maintained in the current state for use, and will not change easily. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the handrail board of the utility model;
[0014] Figure 3 This is a schematic diagram of the partial internal structure of the handrail board of the utility model;
[0015] Figure 4 It is a partial explosion schematic diagram of the utility model;
[0016] Figure 5 It is a structural schematic diagram of the front-rear moving locking mechanism of the utility model;
[0017] Figure 6 This is a schematic diagram of the structure of the connecting seat of the utility model when viewed from above;
[0018] Figure 7 This is a schematic diagram of the three-dimensional structure of the connecting seat of the utility model;
[0019] Figure 8 This is a schematic diagram of the three-dimensional structure of the rotating wheel of the utility model;
[0020] Fig. 9 It is a schematic diagram of the structure between the base and the lock hook rod of the utility model;
[0021] Fig.10 It is a structural schematic diagram of the lock hook rod of the utility model;
[0022] In the figure: 1, armrest plate; 2, switch rod A; 3, connecting seat; 4, switch rod B; 5, paddle; 6, supporting outer column; 7, connector; 8, mounting plate; 9, mounting shaft; 10, limiting slider; 11, toggle rod; 12, limiting plate; 13, trigger rod; 14, gear slot A; 15, connecting opening; 16, locking slot A; 17, rotating wheel; 18, locking slot B; 19, locking steel ball; 20, locking rod A; 21, storage slot; 22, embedded slot; 23, gear 1. Position slot B; 24. Limit block; 25. Press down the swivel seat; 26. Unlocking slot; 27. Anti-drop rod; 28. Bump; 29. Base; 30. Shift slot C; 31. Lock hook rod; 32. Shift telescopic block; 33. Rotation installation slot; 34. Shift card slot; 35. Support inner column; 36. Shift steel ball A; 37. Shift steel ball B; 38. Shift slot D; 39. Shift steel ball C; 40. Travel slot; 41. Spring installation slot; 42. Connecting guide column; 43. Reset spring. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figures 1 to 10, provides a technical solution: a multi-angle rotation adjustment armrest with a lock, comprising an armrest plate 1, a lifting adjustment component is arranged at the bottom of one end of a connecting seat 3, the lifting adjustment component is connected to the connecting seat 3 through a rotation adjustment component, an armrest plate 1 is arranged above the connecting seat 3, the armrest plate 1 can perform longitudinal downward adjustment movement through a downward adjustment component, a front and rear adjustment component which can be used for forward and backward sliding adjustment of the armrest plate 1 is arranged in the armrest plate 1, and a swing adjustment component is arranged between the front and rear adjustment component and the downward adjustment component.In this embodiment, preferably, the front and rear adjustment components include a limiting slider 10, which is set inside the armrest board 1 for limiting linear sliding. One side of the limiting slider 10 is connected to a retractable gear telescopic block 32 through a spring, and the other side of the limiting slider 10 is connected to a retractable locking rod A20 through a spring. A plurality of locking grooves A16 are set on one side of the interior of the armrest board 1, and the locking rod A20 can be locked with any one of the locking grooves A16. A plurality of gear grooves A14 are set on the other side of the interior of the armrest board 1, and the gear telescopic block 32 can be engaged with any one of the gear grooves A14. A trigger rod 13 is integrally set on the top of the locking rod A20, and a useful A limiting plate 12 is used to limit the movement stroke of the trigger rod 13. A mounting shaft 9 is fixedly arranged in the armrest plate 1. A toggle rod 11 for toggling the trigger rod 13 to slide is rotatably arranged on the mounting shaft 9. A switch rod A2 for pushing the toggle rod 11 to rotate is arranged on the outside of the armrest plate 1; the swing adjustment component includes an embedded groove 22 provided on the limiting slider 10, a rotating wheel 17 is movably arranged in the embedded groove 22, a half arc at the bottom of the rotating wheel 17 is concave to form a travel groove 40, a limiting block 24 is arranged in the embedded groove 22 to cooperate with the travel groove 40 to limit the rotation angle range of the rotating wheel 17, and an elastically retractable The gear steel ball C39 is provided with a plurality of gear grooves B23 distributed on the bottom circumference of the embedded groove 22, and the gear steel ball C39 can be engaged with any gear groove B23. The edge of the rotating wheel 17 is provided with a plurality of locking grooves B18. A channel matching the locking groove B18 is provided on one side of the embedded groove 22, and a locking steel ball 19 for locking the rotation of the rotating wheel 17 is placed in the locking groove B18 corresponding to the channel. The other end of the channel is blocked by the locking rod A20, and the locking rod A20 is provided with a storage groove 21 for accommodating the locking steel ball 19. When the switch rod A2 is pressed, the toggle rod 11 is pushed to rotate around the mounting shaft rod 9, and the other end of the toggle rod 11 pushes the trigger When the rod 13 slides, the locking rod A20 also slides synchronously, and one end of the locking rod A20 withdraws from the corresponding locking groove A16, thereby releasing the locking state of the forward and backward sliding. The armrest board 1 can be pushed forward and backward with force to adjust the forward and backward sliding position of the armrest board 1. At the same time, the storage groove 21 is aligned with the locking steel ball 19, and the armrest board 1 is pulled, so that the rotating wheel 17 squeezes the locking steel ball 19 out of the current locking groove B18 and falls into the storage groove 21, thereby releasing the lock of the swing adjustment, and then the swing adjustment can be carried out. A strip-shaped connecting opening 15 is provided at the bottom of the armrest board 1, in order to facilitate the subsequent downward pressing of the rotating head seat 25 to extend smoothly to the inside of the armrest board 1.
[0025] In the present embodiment, preferably, the downward pressure regulating assembly includes a rotating mounting groove 33 provided at one end of the connecting seat 3, and a downward pressure rotating head seat 25 rotatably installed in the rotating mounting groove 33 through a rotating shaft, the top of the downward pressure rotating head seat 25 moves through the connecting opening 15 and the limiting slider 10 in turn, and the top of the downward pressure rotating head seat 25 is fixedly connected to the rotating wheel 17 located in the embedded groove 22, a pair of elastically retractable shifting steel balls A36 are arranged on the bottom arc of the downward pressure rotating head seat 25, at least two pairs of shifting grooves D38 are arranged inside the rotating mounting groove 33, and the shifting steel balls A36 can be engaged with any pair of shifting grooves D38, and the shifting steel balls A36 can be engaged with the shifting grooves at different positions through the shifting steel balls A36 D38 is engaged to achieve the adjustment of the downward angle of the entire armrest. A protrusion 28 is provided on one side of the downward-pressing rotating head seat 25. A switch rod B4 for preventing the protrusion 28 from rotating is provided on one side of the protrusion 28. The switch rod B4 is installed on one side of the connecting seat 3 through spring telescopic movement. An unlocking groove 26 for the protrusion 28 to pass through is provided on the switch rod B4. When the switch rod B4 is pressed into the connecting seat 3, the unlocking groove 26 is located on the rotation path of the protrusion 28, so that the switch rod B4 is no longer in a locked state, so that the downward-pressing rotating head seat 25 can be rotated and adjusted. An anti-slip rod 27 for limiting the telescopic movement distance of the switch rod B4 is also provided on the connecting seat 3 to prevent the switch rod B4 from slipping off.
[0026] In this embodiment, preferably, the rotation adjustment component includes a base 29 rotatably mounted at one end of the bottom of the connecting seat 3, a circle of gear grooves C30 are distributed circumferentially on the base 29, and a plurality of elastically retractable gear steel balls B37 are distributed circumferentially on the bottom of the connecting seat 3. The gear steel balls B37 can be engaged with any gear groove C30, thereby realizing free rotation adjustment of the connecting seat 3.
[0027] In this embodiment, preferably, the lifting and adjusting component includes a supporting outer column 6 fixedly mounted on the bottom of the base 29, and a supporting inner column 35 which can be longitudinally retracted and moved is arranged inside the supporting outer column 6, and a plurality of gear slots 34 are longitudinally distributed on the supporting inner column 35, and a locking hook rod 31 is arranged on the inner side of the supporting inner column 35, and one end of the locking hook rod 31 can be engaged with any gear slot 34, and the top end of the locking hook rod 31 is rotatably connected to the inner side of the top end of the supporting outer column 6 through a connecting shaft rod, and a paddle 5 which can drive the locking hook rod 31 to rotate is arranged on the outer side of the supporting outer column 6, in order to facilitate the rotation of the locking hook rod 31 by paddle 5, so that the locking hook rod 31 is separated from the current gear slot 34, and then the gear slots 34 of other heights can be raised and lowered to engage with the locking hook rod 31 to achieve height adjustment.
[0028] In this embodiment, preferably, a spring mounting groove 41 is provided at the top of the paddle 5, and a connecting guide column 42 aligned with the spring mounting groove 41 is provided at the bottom of the base 29, and a reset spring 43 is connected between the connecting guide column 42 and the spring mounting groove 41. The reset spring can ensure that the lock hook rod 31 and the gear slot 34 are stably engaged, and the bottom end of the supporting inner column 35 extends to the outside of the bottom end of the supporting outer column 6, and the bottom end of the supporting inner column 35 is fixedly connected to the mounting plate 8 through the connecting head 7, which can facilitate the installation of the handrail.
[0029] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-angle rotating adjustable armrest with a lock, comprising an armrest plate (1) and a connecting seat (3), characterized in that: A lifting adjustment component is arranged at the bottom of one end of the connecting seat (3), and the lifting adjustment component is connected to the connecting seat (3) via a rotating adjustment component. An armrest plate (1) is arranged above the connecting seat (3), and the armrest plate (1) can perform longitudinal downward adjustment movement via a downward adjustment component. A front-to-back adjustment component that can be used for adjusting the front-to-back sliding movement of the armrest plate (1) is arranged inside the armrest plate (1), and a swing adjustment component is arranged between the front-to-back adjustment component and the downward adjustment component.
2. The multi-angle rotating adjustable armrest with lock according to claim 1, characterized in that: The front-rear adjustment assembly comprises a limiting slider (10), wherein the limiting slider (10) is arranged inside the armrest plate (1) for limiting linear sliding movement, one side of the limiting slider (10) is connected to a retractable shifting retractable block (32) via a spring, and the other side of the limiting slider (10) is connected to a retractable locking rod A (20) via a spring, a plurality of locking grooves A (16) are arranged on one side of the interior of the armrest plate (1), and the locking rod A (20) can be locked with any one of the locking grooves A (16), and a plurality of shifting grooves A (16) are arranged on the other side of the interior of the armrest plate (1). (14), the shift telescopic block (32) can be engaged with any shift slot A (14), a trigger rod (13) is integrally provided on the top of the lock rod A (20), a limiting plate (12) for limiting the movement of the trigger rod (13) is provided on the limiting slider (10), a mounting shaft (9) is fixedly provided inside the armrest plate (1), a toggle rod (11) for toggle the trigger rod (13) is rotatably provided on the mounting shaft (9), and a switch rod A (2) for pushing the toggle rod (11) to rotate is provided on the outside of the armrest plate (1).
3. The multi-angle rotating adjustable armrest with lock according to claim 2, characterized in that: The swing adjustment component comprises an embedded groove (22) provided on a limiting slider (10), a rotating wheel (17) being movably provided in the embedded groove (22), a half arc at the bottom of the rotating wheel (17) being concave to form a travel groove (40), a limiting block (24) being provided in the embedded groove (22) and cooperating with the travel groove (40) to limit the rotation angle range of the rotating wheel (17), an elastically retractable shifting steel ball C (39) being provided on the other half arc at the bottom of the rotating wheel (17), a plurality of shifting grooves B (23) being distributed on the circumference of the bottom of the embedded groove (22), and the shifting steel ball C (39) can be engaged with any gear slot B (23), the edge of the rotating wheel (17) is provided with a plurality of locking slots B (18), one side of the embedded slot (22) is provided with a channel matching the locking slot B (18), a locking steel ball (19) for locking the rotation of the rotating wheel (17) is placed in the locking slot B (18) corresponding to the channel, the other end of the channel is blocked by a locking rod A (20), the locking rod A (20) is provided with a receiving slot (21) for accommodating the locking steel ball (19), and the bottom of the armrest plate (1) is provided with a strip-shaped connecting opening (15).
4. The multi-angle rotating adjustable armrest with lock according to claim 3, characterized in that: The downward pressure regulating assembly comprises a rotating mounting groove (33) provided at one end of the connecting seat (3), and a downward pressure rotating head seat (25) rotatably mounted in the rotating mounting groove (33) via a rotating shaft, the top of the downward pressure rotating head seat (25) moves through the connecting opening (15) and the limiting slider (10) in sequence, and the top of the downward pressure rotating head seat (25) is fixedly connected to the rotating wheel (17) located in the embedded groove (22), a pair of elastically retractable gear steel balls A (36) are arranged on the bottom arc of the downward pressure rotating head seat (25), at least two pairs of gear grooves D (38) are arranged inside the rotating mounting groove (33), and the gear steel balls A (36) The invention can be engaged with any pair of gear slots D (38); a protrusion (28) is provided on one side of the downward pressing rotating head seat (25); a switch rod B (4) is provided on one side of the protrusion (28) for preventing the protrusion (28) from rotating; the switch rod B (4) is installed on one side of the connecting seat (3) through spring telescopic movement; an unlocking slot (26) is provided on the switch rod B (4) for the protrusion (28) to pass through; when the switch rod B (4) is pressed into the connecting seat (3), the unlocking slot (26) is located on the rotating path of the protrusion (28); and an anti-dropping rod (27) is also provided on the connecting seat (3) for limiting the telescopic movement distance of the switch rod B (4).
5. The multi-angle rotating adjustable armrest with lock according to claim 4, characterized in that: The rotary adjustment assembly comprises a base (29) rotatably mounted at one end of the bottom of the connecting seat (3); a circle of shifting grooves C (30) are distributed on the circumference of the base (29); a plurality of elastically retractable shifting steel balls B (37) are distributed on the circumference of the bottom of the connecting seat (3); and the shifting steel balls B (37) can be engaged with any shifting groove C (30).
6. The multi-angle rotating adjustable armrest with lock according to claim 5, characterized in that: The lifting and adjusting assembly comprises a supporting outer column (6) fixedly mounted on the bottom of the base (29); a supporting inner column (35) which can be longitudinally telescopically arranged inside the supporting outer column (6); a plurality of gear slots (34) are longitudinally distributed on the supporting inner column (35); a locking hook rod (31) is arranged on the inner side of the supporting inner column (35); one end of the locking hook rod (31) can be engaged and connected with any one of the gear slots (34); the top end of the locking hook rod (31) is rotatably connected to the inner side of the top end of the supporting outer column (6) via a connecting shaft; and a paddle (5) which can drive the locking hook rod (31) to rotate is arranged on the outer side of the supporting outer column (6).
7. The multi-angle rotating and adjustable armrest with lock according to claim 6, characterized in that: A spring mounting groove (41) is provided at the top of the paddle (5), a connecting guide column (42) aligned with the spring mounting groove (41) is provided at the bottom of the base (29), a return spring (43) is connected between the connecting guide column (42) and the spring mounting groove (41), the bottom end of the supporting inner column (35) extends to the outside of the bottom end of the supporting outer column (6), and the bottom end of the supporting inner column (35) is fixedly connected to a mounting plate (8) via a connecting head (7).