Angle-adaptable handrail

Abstract

The utility model relates to a scooter technical field especially angle adaptability adjustment's handrail, including seat and support handrail, seat side is provided with connecting portion, support handrail and connecting portion rotation is connected, support handrail includes installation slot, and the pressing block is arranged between installation slot and connecting portion, the arc hole is seted up on installation slot side wall, and the pressing block partially protrudes arc hole, and the pressing block and connecting portion slide and connect, and the installation lug is seted up on connecting portion, and the pressing block and installation lug abut with elastic member jointly, and the at least two limit notches are seted up in the inner wall of installation slot, and the positioning lug is seted up on the pressing block, and the positioning lug can be connected with the limit notches, and the positioning lug is always located in the installation slot, when the positioning lug and limit notches are connected, support handrail and connecting portion relative lock, when the positioning lug and limit notches are completely separated, support handrail and connecting portion can relatively rotate, the utility model has solved the problem that traditional handrail angle adjustment is not convenient enough.

Description

Technical Field

[0001] This utility model relates to the field of mobility scooter technology, and in particular to a handrail with adjustable angle. Background Technology

[0002] People with mobility impairments and the elderly can now use mobility scooters to get around, which greatly facilitates their daily care.

[0003] The seats of mobility scooters are usually equipped with armrests for users to rest their hands. However, when adjusting the angle or folding the traditional armrests, users have to rotate the armrests to a certain angle and then use the corresponding locking device on the seat to fix them. This is inconvenient, and the locking device cannot lock when the armrest is fully rotated, which affects the user experience. There is an urgent need in the market for an armrest that can automatically lock when the angle adjustment is completed. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes an angle-adjustable handrail, which solves the issue of inconvenient angle adjustment in traditional handrails.

[0005] The technical solution adopted by this utility model is as follows: an angle-adaptive adjustable armrest, including a seat and a supporting armrest. A connecting portion is provided on the side of the seat, and the supporting armrest and the connecting portion are rotatably connected. The supporting armrest includes a mounting groove, and a pressing block is provided between the mounting groove and the connecting portion. An arc-shaped hole is provided on the side wall of the mounting groove, and the pressing block partially extends out of the arc-shaped hole. The pressing block and the connecting portion are slidably connected. A mounting protrusion is provided on the connecting portion, and the pressing block and the mounting protrusion abut against an elastic element. A limiting notch is provided on the inner wall of the mounting groove, and the number of limiting notches is at least two. A positioning protrusion is provided on the pressing block, and the positioning protrusion can engage with the limiting notch. The positioning protrusion is always located within the mounting groove. When the positioning protrusion engages with the limiting notch, the supporting armrest and the connecting portion are relatively locked. When the positioning protrusion and the limiting notch are completely separated, the supporting armrest and the connecting portion can rotate relative to each other.

[0006] Through the above technical solution, the user drives the pressing block, causing it to compress the elastic element against the mounting protrusion. The positioning protrusion slides on the connecting part until the positioning protrusion and the limiting notch on the pressing block are completely separated. The locking of the support armrest and the connecting part is released, and the user can rotate the support armrest on the connecting part. After the support armrest is rotated at a certain angle, the positioning protrusion on the pressing block can align with the limiting notch in the mounting groove. At this time, the user can remove the driving force applied to the pressing block, causing the elastic element to spring back and reset. The pressing block returns to its initial position under the push of the elastic element, and... The movable positioning protrusion slides on the connecting part, allowing it to engage with the limiting notch, thereby locking the armrest and the connecting part and keeping their relative positions fixed. The user only needs to press the pressing block to the appropriate position to release the locking state of the armrest and the connecting part. After rotating the armrest to a certain angle, the user can release the pressing block, allowing it to return to its initial position and simultaneously engage the positioning protrusion with the limiting notch, locking the armrest and the connecting part. This makes it very convenient and quick for the user to adjust the angle of the armrest on the seat.

[0007] Furthermore, a mounting plate is provided on the top of the pressing block, and the mounting plate is always located outside the mounting groove.

[0008] Through the above technical solution, the mounting plate on the top of the pressing block allows the user to apply driving force to the pressing block by pressing the mounting plate, making it convenient for the user to drive the pressing block. The mounting plate is always located outside the mounting groove, so that the pressing block will not completely enter the mounting groove during the compression of the elastic element, allowing the pressing block to be reset better.

[0009] Furthermore, when the pressing block abuts against one end of the arc-shaped hole, the positioning protrusion and one of the limiting notches engage; when the pressing block abuts against the other end of the arc-shaped hole, the positioning protrusion and another of the limiting notches engage.

[0010] With the above technical solution, the user rotates the support armrest on the connecting part until the pressing block and the end of the arc-shaped hole abut against each other. At this time, the positioning protrusion on the pressing block and the limiting notch on the inner wall of the mounting groove are aligned. At this time, the user can remove the driving force applied to the pressing block. The rebound force of the elastic element pushes the pressing block back to the initial position, causing the positioning protrusion to slide on the connecting part, so that the positioning protrusion is locked into the limiting notch. This makes the pressing block restricted by both the end of the arc-shaped hole and the limiting notch, making the locking between the support armrest and the connecting part more stable.

[0011] Furthermore, the mounting protrusion includes a protrusion, a first end, and a second end. The protrusion is located between the first end and the second end. The elastic member abuts between the protrusion and the pressing block. A first clearance portion for sliding of the pressing block is formed between the first end and the protrusion, and a second clearance portion for sliding of the pressing block is formed between the second end and the protrusion.

[0012] Through the above technical solution, the first clearance portion formed between the first end and the protrusion and the second clearance portion formed between the second end and the protrusion provide sufficient space for the pressing block to slide on the connecting part, ensuring the normal functioning of the pressing block.

[0013] Furthermore, the protrusion is provided with a first groove, the positioning protrusion is provided with a corresponding second groove, one end of the elastic member abuts in the first groove, and the other end of the elastic member abuts in the second groove.

[0014] With the above technical solution, one end of the elastic element is restricted by the first groove and the other end of the elastic element is restricted by the second groove, which makes the connection between the elastic element and the protrusion and the positioning protrusion very firm, preventing the elastic element from coming out during elastic deformation and effectively extending the service life of the elastic element. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a schematic diagram of the seat structure of this utility model;

[0019] Figure 4 This is an enlarged view of section A of the schematic diagram of the seat structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the pressing block structure of this utility model;

[0021] Figure 6 This is one of the schematic diagrams of the supporting handrail structure of this utility model;

[0022] Figure 7 This is the second schematic diagram of the supporting handrail structure of this utility model;

[0023] The utility model reference information is as follows:

[0024] 1. Seat; 2. Support armrest; 3. Connecting part; 4. Mounting groove; 5. Pressing block; 6. Arc-shaped hole; 7. Mounting protrusion; 701. Protrusion; 702. First end; 703. Second end; 8. Elastic element; 9. Limiting notch; 10. Positioning protrusion; 11. Mounting piece; 12. First clearance part; 13. Second clearance part; 14. First groove; 15. Second groove; 16. Mounting shaft;

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] See Figures 1-7As shown, an angle-adaptive adjustable armrest includes a seat 1 and a supporting armrest 2. A connecting portion 3 is provided on the side of the seat 1. The supporting armrest 2 and the connecting portion 3 are rotatably connected. The supporting armrest 2 includes a mounting groove 4. A pressing block 5 is provided between the mounting groove 4 and the connecting portion 3. An arc-shaped hole 6 is provided on the side wall of the mounting groove 4. The pressing block 5 partially extends out of the arc-shaped hole 6 and is slidably connected to the connecting portion 3. A mounting protrusion 7 is provided on the connecting portion 3. The pressing block 5 and the mounting protrusion 7 abut against an elastic element 8. A limiting notch 9 is provided on the inner wall of the mounting groove 4. The number of limiting notches 9 is at least two. A positioning protrusion 10 is provided on the pressing block 5. The positioning protrusion 10 can engage with the limiting notch 9 and is always located within the mounting groove 4. When the positioning protrusion 10 and the limiting notch 9 are engaged, the supporting armrest 2 and the connecting portion 3 are relatively locked. When the positioning protrusion 10 and the limiting notch 9 are completely separated, the supporting armrest 2 and the connecting portion 3 can rotate relative to each other. The user drives the pressing block 5, causing it to compress the elastic element 8 against the mounting protrusion 7. The positioning protrusion 10 slides on the connecting part 3 until the positioning protrusion 10 on the pressing block 5 and the limiting notch 9 are completely separated. The locking of the support armrest 2 and the connecting part 3 is released, and the user can rotate the support armrest 2 on the connecting part 3. After the support armrest 2 is rotated at a certain angle, the positioning protrusion 10 on the pressing block 5 can be aligned with the limiting notch 9 in the mounting groove 4. At this time, the user can remove the driving force applied to the pressing block 5, causing the elastic element 8 to spring back to its original position. The pressing block 5 returns to its initial position under the push of the elastic element 8, and drives the positioning protrusion 10 to move back to its original position. Block 10 slides on the connecting part 3, allowing the positioning protrusion 10 to engage in the limiting notch 9, thereby locking the support armrest 2 and the connecting part 3, and keeping the relative positions of the support armrest 2 and the connecting part 3 fixed. The user only needs to press the pressing block 5 to the appropriate position to release the locking state of the support armrest 2 and the connecting part 3. After rotating the support armrest 2 at a certain angle, the user can release the pressing block 5, allowing the pressing block 5 to return to the initial position, while the positioning protrusion 10 engages in the limiting notch 9, locking the support armrest 2 and the connecting part 3. It is very convenient and quick for the user to adjust the angle of the support armrest 2 on the seat 1.

[0030] The preferred elastic element 8 is a spring.

[0031] The preferred limiting notch 9 has three on the inner wall of the mounting groove 4.

[0032] The connecting part 3 is also provided with a mounting shaft 16, and the support handrail 2 is rotatably connected to the mounting shaft 16. The support handrail 2 can be rotatably connected to the connecting part 3 by the mounting shaft 16, or rotatably connected to the connecting part 3 by the mounting groove 4, or rotatably connected to the connecting part 3 by both the mounting shaft 16 and the mounting groove 4.

[0033] The preferred support armrest 2 of this utility model is rotatably connected to the connecting part 3 by means of the mounting shaft 16 and the mounting groove 4.

[0034] See Figure 5 As shown, a mounting plate 11 is provided on the top of the pressing block 5, and the mounting plate 11 is always located outside the mounting groove 4. The mounting plate 11 on the top of the pressing block 5 allows the user to apply driving force to the pressing block 5 by pressing the mounting plate 11, making it convenient for the user to drive the pressing block 5. The fact that the mounting plate 11 is always located outside the mounting groove 4 ensures that the pressing block 5 will not completely enter the mounting groove 4 during the compression of the elastic member 8, allowing the pressing block 5 to be reset more effectively.

[0035] See Figures 1-7 As shown, when one end of the pressing block 5 and the arc-shaped hole 6 abuts, the positioning protrusion 10 and a limiting notch 9 engage; when the other end of the pressing block 5 and the arc-shaped hole 6 abuts, the positioning protrusion 10 and another limiting notch 9 engage. The user rotates the support armrest 2 on the connecting part 3 until the end of the pressing block 5 and the arc-shaped hole 6 abuts. At this point, the positioning protrusion 10 on the pressing block 5 aligns with the limiting notch 9 on the inner wall of the mounting groove 4. The user can then remove the driving force applied to the pressing block 5. The rebound force of the elastic element 8 pushes the pressing block 5 back to its initial position, causing the positioning protrusion 10 to slide on the connecting part 3, so that the positioning protrusion 10 engages with the limiting notch 9. This makes the pressing block 5 simultaneously restricted by the end of the arc-shaped hole 6 and the limiting notch 9, making the locking between the support armrest 2 and the connecting part 3 more secure.

[0036] See Figures 1-5 As shown, the mounting protrusion 7 includes a protrusion 701, a first end 702, and a second end 703. The protrusion 701 is located between the first end 702 and the second end 703. The elastic member 8 abuts against the protrusion 701 and the pressing block 5. A first clearance portion 12 for sliding of the pressing block 5 is formed between the first end 702 and the protrusion 701, and a second clearance portion 13 for sliding of the pressing block 5 is formed between the second end 703 and the protrusion 701. The first clearance portion 12 formed between the first end 702 and the protrusion 701 and the second clearance portion 13 formed between the second end 703 and the protrusion 701 provide sufficient space for the pressing block 5 to slide on the connecting portion 3, ensuring the normal functioning of the pressing block 5.

[0037] See Figures 1-5As shown, a first groove 14 is provided on the protrusion 701, and a second groove 15 is provided on the positioning protrusion 10. One end of the elastic member 8 abuts in the first groove 14, and the other end of the elastic member 8 abuts in the second groove 15. One end of the elastic member 8 is restricted by the first groove 14, and the other end of the elastic member 8 is restricted by the second groove 15, making the connection between the elastic member 8 and the protrusion 701 and the positioning protrusion 10 very firm, preventing the elastic member 8 from coming off during elastic deformation, and effectively extending the service life of the elastic member 8.

[0038] In use, the user presses the mounting plate 11, thereby driving the pressing block 5 to compress the elastic element 8 towards the mounting protrusion 7. The positioning protrusion 10 slides on the connecting part 3 until the positioning protrusion 10 on the pressing block 5 and the limiting notch 9 are completely separated. The locking of the support armrest 2 and the connecting part 3 is released. The user can rotate the support armrest 2 on the connecting part 3. After the support armrest 2 is rotated at a certain angle, the positioning protrusion 10 on the pressing block 5 can be aligned with the limiting notch 9 in the mounting groove 4. At this time, the user can remove the driving force applied to the mounting plate 11, causing the elastic element 8 to spring back and reset. The pressing block 5 returns to its initial position under the push of the elastic element 8, and drives the positioning protrusion 10 to slide on the connecting part 3, so that the positioning protrusion 10 can be engaged in the limiting notch 9, thereby locking the support armrest 2 and the connecting part 3. The relative position of the support armrest 2 and the connecting part 3 remains fixed, and the angle adjustment of the support armrest 2 is completed.

[0039] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An angle-adapted adjustable armrest, comprising a seat (1), characterized in that: The seat (1) is provided with a connecting part (3) at the side, the supporting handrail (2) and the connecting part (3) are rotationally connected, the supporting handrail (2) comprises a mounting groove (4), a pressing block (5) is arranged between the mounting groove (4) and the connecting part (3), an arc-shaped hole (6) is formed in the side wall of the mounting groove (4), the pressing block (5) partially extends out of the arc-shaped hole (6), the pressing block (5) and the connecting part (3) are slidingly connected, a mounting protrusion (7) is arranged on the connecting part (3), the pressing block (5) and the mounting protrusion (7) abut against an elastic element (8) together, a limiting gap (9) is arranged on the inner wall of the mounting groove (4), the number of the limiting gaps (9) is at least two, a positioning protrusion (10) is arranged on the pressing block (5), the positioning protrusion (10) can be clamped with the limiting gap (9), and the positioning protrusion (10) is always located in the mounting groove (4); when the positioning protrusion (10) is clamped with the limiting gap (9), the supporting handrail (2) and the connecting part (3) are relatively locked; when the positioning protrusion (10) is completely separated from the limiting gap (9), the supporting handrail (2) and the connecting part (3) can relatively rotate.

2. An angle-adaptable handrail according to claim 1, characterized in that: A mounting sheet (11) is arranged on the top of the pressing block (5), and the mounting sheet (11) is always located outside the mounting groove (4).

3. An angle-adaptable handrail according to claim 2, characterized in that: When one end of the pressing block (5) abuts against the arc-shaped hole (6), the positioning protrusion (10) is clamped with one limiting gap (9); when the other end of the pressing block (5) abuts against the arc-shaped hole (6), the positioning protrusion (10) is clamped with another limiting gap (9).

4. An angle-adaptable handrail according to claim 1 or 2 or 3, characterized in that: The mounting protrusion (7) comprises a protruding part (701), a first end (702) and a second end (703), the protruding part (701) is located between the first end (702) and the second end (703), the elastic element (8) abuts between the protruding part (701) and the pressing block (5), a first avoiding part (12) is formed between the first end (702) and the protruding part (701) for the sliding of the pressing block (5), and a second avoiding part (13) is formed between the second end (703) and the protruding part (701) for the sliding of the pressing block (5).

5. An angle- adjustable handrail as claimed in claim 4, characterized in that: A first recess (14) is arranged on the protruding part (701), a second recess (15) is correspondingly arranged on the positioning protrusion (10), one end of the elastic element (8) abuts in the first recess (14), and the other end of the elastic element (8) abuts in the second recess (15).

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