Portable sunroof for wheelchairs

Abstract

The utility model belongs to wheelchair technical field especially, and a kind of portable sunshade roof of wheelchair, in view of the problem that existing wheelchair sunshade roof is not convenient to fold, inconvenient to carry, present and propose the following scheme, it includes: two connecting blocks installed on two handles of wheelchair;Two support arms are respectively fixedly installed on the top of two connecting blocks, and same connecting rod is fixedly installed between two support arms;Mounting plate is located between two support arms, rotating hole is opened on mounting plate, rotating shaft one is rotatably installed in rotating hole, the utility model is rotated by setting the mounting plate that can rotate rotating shaft one, foldable first rotating arm and second rotating arm, so that the whole sunshade roof can be quickly folded into a compact volume from unfolded use state.This design greatly reduces the space occupied when storing, makes it easy for users to carry and store the wheelchair when not needing sunshade, solves the pain point of traditional wheelchair sunshade heavy, inconvenient storage.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology, and in particular to a portable sunshade canopy for wheelchairs. Background Technology

[0002] Wheelchair sunshades prevent users from being exposed to the sun for extended periods, preventing sunburn and heatstroke. They also effectively block ultraviolet rays, reducing damage to the skin and eyes, which is especially important for users who need to spend long periods outdoors.

[0003] In the existing technology, wheelchair sunshade canopies are not easy to fold or carry. Therefore, we propose a portable wheelchair sunshade canopy to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of wheelchair sunshade canopies being inconvenient to fold and carry, and to propose a portable wheelchair sunshade canopy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: Portable wheelchair sunshade canopy, including: Two connecting blocks are installed on the two handlebars of the wheelchair; Two support arms are fixedly installed on the top of the two connecting blocks respectively, and the same connecting rod is fixedly installed between the two support arms; A mounting plate is located between two support arms. A rotating hole is provided on the mounting plate, and a rotating shaft is rotatably mounted in the rotating hole. The two ends of the rotating shaft are fixedly connected to the two support arms respectively. Two locking holes are located on the rotating shaft; A locking mechanism, located on the mounting plate, is used to fix the rotating shaft by engaging two locking holes; Both first rotating arms are rotatably mounted on one side of the mounting plate; Two rotating shafts are respectively rotatably mounted on two first rotating arms. A second rotating arm is fixedly mounted on the outer side of each of the two rotating shafts. The same horizontal plate is rotatably mounted on one end of each of the two second rotating arms. The bottom two ends of the canopy are fixedly connected to the top of the mounting plate and the horizontal plate, respectively.

[0006] Preferably, the locking mechanism includes a pull plate, which is disposed on one side of the mounting plate. Two locking rods are fixedly installed on one side of the pull plate, and the two locking rods are respectively inserted into two locking holes.

[0007] Preferably, two sliding holes are provided on one side of the mounting plate, and the outer sides of the two locking rods slide in contact with the inner walls of the two sliding holes respectively. Two grooves are provided on one side of the mounting plate, and one end of a spring is fixedly installed on the inner wall of one side of each groove. The other end of each spring is fixedly connected to the pull plate.

[0008] Preferably, one end of each of the two first rotating arms is provided with a U-shaped opening, and the top inner wall and bottom inner wall of the U-shaped opening are provided with cylindrical grooves. The two ends of the rotating shaft are respectively rotatably installed in the corresponding two cylindrical grooves.

[0009] Preferably, the bottom of the rotating shaft two is provided with a regular polygonal groove, and the bottom inner wall of the cylindrical groove is provided with a regular polygonal hole. A regular polygonal block is slidably installed in the regular polygonal hole, and the top of the regular polygonal block is engaged with the regular polygonal groove.

[0010] Preferably, a reset block is fixedly installed at the bottom of the regular polygonal block, one end of a reset spring is fixedly installed at the top of the reset block, and the other end of the reset spring is fixedly connected to the first rotating arm.

[0011] Preferably, a T-shaped limiting rod is fixedly installed on the outer side of the first rotating arm, and the reset block is slidably connected to the T-shaped limiting rod.

[0012] Preferably, both connecting blocks are U-shaped structures, and each connecting block is threaded with a locking bolt.

[0013] Compared with the prior art, the advantages of this utility model are: This invention, by incorporating a mounting plate that can rotate around a pivot axis and foldable first and second rotating arms, allows the entire sunshade canopy to be quickly folded into a compact form from its unfolded state. This design significantly reduces the space occupied during storage, making it convenient for users to easily carry and store their wheelchairs when sunshade is not needed (such as when entering indoor spaces or using public transportation), thus solving the problems of traditional wheelchair sunshades being bulky and inconvenient to store.

[0014] The device features a dual locking mechanism: First, the locking rod engages with the locking hole on the rotating shaft to ensure the stability of the mounting plate in its unfolded state, preventing accidental rotation. Second, the angle between the first and second rotating arms is fixed by the engagement of a regular polygonal block with a regular polygonal groove at the bottom of the rotating shaft. These two locking mechanisms work together to ensure the sunshade canopy is structurally stable after unfolding, effectively resisting external forces such as light winds and ensuring safe use.

[0015] Because the first rotating arm and the mounting plate, and the second rotating arm and the horizontal plate are all rotatably connected, and the connection between the rotating shaft and the first rotating arm is equipped with an unlockable snap-fit ​​structure, the user can adjust the angles of the first and second rotating arms after unlocking, thereby changing the relative position between the horizontal plate and the mounting plate and the tilt angle of the canopy. This allows the shading area to be flexibly adjusted according to the sun's position and the user's needs, improving comfort and adaptability.

[0016] The folding, unfolding, and locking of the entire device can be accomplished with simple push-pull actions (such as pulling the pull plate to unlock the mounting plate, and pressing the reset block to unlock the rotating arm), without the need for complicated tools. The design of the spring and reset spring allows the locking mechanism to automatically or semi-automatically reset after operation, which is intuitive and effortless, making it ideal for wheelchair users with limited mobility to operate independently, thus improving the ease of use and user experience of the product.

[0017] The connecting block adopts a U-shaped structure and is fixed to the wheelchair handle with locking bolts. This installation method is highly compatible and suitable for most standard wheelchairs. The installation and disassembly process is simple and quick, allowing users to install or remove the sunshade canopy at any time according to actual needs, enhancing the product's practicality and versatility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the portable sunshade canopy for wheelchairs proposed in this utility model; Figure 2 This is a partial top view of the portable sunshade canopy for wheelchairs proposed in this utility model; Figure 3 This is a side view of the connection structure of the connecting block, support arm and mounting plate of the portable sunshade canopy for wheelchairs proposed in this utility model. Figure 4 The portable sunshade canopy for wheelchairs proposed in this utility model Figure 1 A magnified structural diagram of part A in the middle; Figure 5 The portable sunshade canopy for wheelchairs proposed in this utility model Figure 2 A magnified structural diagram of part B.

[0019] In the diagram: 1. Connecting block; 2. Support arm; 3. Mounting plate; 4. Rotating hole; 5. Rotating shaft one; 6. First rotating arm; 7. U-shaped opening; 8. Rotating shaft two; 9. Second rotating arm; 10. Horizontal plate; 11. Canopy; 12. Locking hole; 13. Locking rod; 14. Pull plate; 15. Spring; 16. Fixing bolt; 17. Threaded fixing groove; 18. Regular polygonal groove; 19. Regular polygonal block; 20. Reset block; 21. Reset spring; 22. Locking bolt. Detailed Implementation

[0020] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this embodiment, and not all embodiments. Example

[0021] Reference Figures 1-5 Portable wheelchair sunshade canopy, including: Two connecting blocks 1 are installed on the two handles of the wheelchair; Two support arms 2 are fixedly installed on the top of two connecting blocks 1 respectively, and the same connecting rod is fixedly installed between the two support arms 2; Mounting plate 3 is located between two support arms 2. Mounting plate 3 has a rotating hole 4. A rotating shaft 5 is rotatably mounted in the rotating hole 4. The two ends of the rotating shaft 5 are fixedly connected to the two support arms 2 respectively. Two locking holes 12 are provided on the rotating shaft 5; A locking mechanism is provided on the mounting plate 3, which is used to fix the rotating shaft 5 by cooperating with the two locking holes 12; Both first rotating arms 6 are rotatably mounted on one side of the mounting plate 3; Two rotating shafts 8 are respectively rotatably mounted on two first rotating arms 6. A second rotating arm 9 is fixedly mounted on the outer side of each of the two rotating shafts 8. The same horizontal plate 10 is rotatably mounted on one end of each of the two second rotating arms 9. The bottom ends of the canopy 11 are fixedly connected to the top of the mounting plate 3 and the horizontal plate 10, respectively.

[0022] In this embodiment, the locking mechanism includes a pull plate 14, which is located on one side of the mounting plate 3. Two locking rods 13 are fixedly installed on one side of the pull plate 14, and the two locking rods 13 are respectively inserted into two locking holes 12.

[0023] In this embodiment, two sliding holes are provided on one side of the mounting plate 3, and the outer sides of the two locking rods 13 slide in contact with the inner walls of the two sliding holes respectively. Two grooves are provided on one side of the mounting plate 3, and one end of a spring 15 is fixedly installed on the inner wall of one side of each of the two grooves. The other end of each spring 15 is fixedly connected to the pull plate 14.

[0024] In this embodiment, a U-shaped opening 7 is provided at one end of each of the two first rotating arms 6. A cylindrical groove is provided on the top inner wall and the bottom inner wall of the U-shaped opening 7. The two ends of the rotating shaft 8 are respectively rotatably installed in the corresponding two cylindrical grooves.

[0025] In this embodiment, a regular polygonal groove 18 is provided at the bottom of the rotating shaft 8, and a regular polygonal hole is provided on the inner wall of the bottom of the cylindrical groove. A regular polygonal block 19 is slidably installed in the regular polygonal hole, and the top of the regular polygonal block 19 is engaged with the regular polygonal groove 18.

[0026] In this embodiment, a reset block 20 is fixedly installed at the bottom of the regular polygon block 19, and one end of a reset spring 21 is fixedly installed at the top of the reset block 20. The other end of the reset spring 21 is fixedly connected to the first rotating arm 6.

[0027] In this embodiment, a T-shaped limiting rod is fixedly installed on the outer side of the first rotating arm 6, and the reset block 20 is slidably connected to the T-shaped limiting rod.

[0028] In this embodiment, both connecting blocks 1 are U-shaped structures, and locking bolts 22 are threadedly installed on both connecting blocks 1.

[0029] Work process: 1. Installation and Fixing First, the two connecting blocks 1 are fixedly installed on the two handles of the wheelchair using locking bolts 22. The connecting block 1 has a U-shaped structure and can be clamped onto the handles. A stable connection is achieved by tightening the locking bolts 22.

[0030] Support arm 2 is fixed to the top of connecting block 1, and the two support arms 2 are connected by connecting rods to form an overall support frame.

[0031] 2. Deployment of the sunshade canopy Positioning of mounting plate 3: Mounting plate 3 is connected to support arm 2 via rotating shaft 5. In the unfolded state, locking rod 13 is inserted into locking hole 12 on rotating shaft 5 to prevent mounting plate 3 from rotating around rotating shaft 5. In this way, mounting plate 3 remains stable and serves as one of the fixed bases for the canopy 11.

[0032] Deployment of the first rotating arm 6 and the second rotating arm 9: The two first rotating arms 6 are rotatably mounted on one side of the mounting plate 3. Each first rotating arm 6 is connected to the second rotating arm 9 via a rotating shaft 2 8. In the deployed state, the regular polygonal groove 18 at the bottom of the rotating shaft 2 8 engages with the regular polygonal block 19 (the regular polygonal block 19 remains engaged under the thrust of the return spring 21), preventing the rotating shaft 2 8 from rotating arbitrarily. In this way, the second rotating arm 9 is fixed, and the horizontal plate 10 is extended, maintaining a certain distance from the mounting plate 3.

[0033] Tension of the canopy 11: The bottom two ends of the canopy 11 are fixed to the top of the mounting plate 3 and the horizontal plate 10, respectively. When the mounting plate 3 and the horizontal plate 10 are unfolded, the canopy 11 is stretched taut to form an effective sunshade canopy.

[0034] 3. Folding mechanism for the sunshade canopy (portable operation) Folding the first rotating arm 6 and the second rotating arm 9: The user pulls the reset block 20 (the reset block 20 is fixedly connected to the regular polygonal block 19), causing the regular polygonal block 19 to disengage from the regular polygonal groove 18 of the rotating shaft 2, stretching the reset spring 21. At this time, the rotating shaft 2 can rotate freely within the cylindrical groove of the first rotating arm 6. The user then folds the first rotating arm 6 and the second rotating arm 9 toward the mounting plate 3. The second rotating arm 9 rotates around the rotating shaft 2, and the horizontal plate 10 moves closer to the mounting plate 3. The canopy 11 folds naturally due to the shortened distance between its two ends.

[0035] When the user pulls the pull plate 14 outward, the spring 15 is stretched, causing the locking rod 13 to disengage from the locking hole 12 of the rotating shaft 5. This allows the mounting plate 3 to rotate around the rotating shaft 5 and fold.

[0036] Overall folding: Through the above operations, the entire sunshade canopy is folded into a compact unit, making it easy to carry and store. Example

[0037] The difference from Embodiment 1 is that a fixing bolt 16 is threaded on the pull plate 14, and a threaded fixing groove 17 is provided on one side of the mounting plate 3. One end of the fixing bolt 16 is threadedly connected to the threaded fixing groove 17, thereby effectively fixing the pull plate 14 when it is not necessary to move the pull plate 14.

[0038] The rest is the same as in Example 1.

[0039] The circuits, electronic components, and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0040] The above description is only a preferred embodiment of this practice, but the scope of protection of this practice is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this practice, based on the technical solution and the inventive concept of this practice, should be covered within the scope of protection of this practice.

Claims

1. A portable sunshade canopy for wheelchairs, characterized in that, include: Two connecting blocks (1) are installed on the two handles of the wheelchair. Two support arms (2) are fixedly installed on the top of two connecting blocks (1), and the same connecting rod is fixedly installed between the two support arms (2); Mounting plate (3) is located between two support arms (2). A rotating hole (4) is provided on the mounting plate (3). A rotating shaft (5) is rotatably installed in the rotating hole (4). The two ends of the rotating shaft (5) are fixedly connected to the two support arms (2) respectively. Two locking holes (12) are provided on the rotating shaft (5); A locking mechanism is provided on the mounting plate (3) and is used to fix the rotating shaft (5) by cooperating with the two locking holes (12); Both first rotating arms (6) are rotatably mounted on one side of the mounting plate (3); Two rotating shafts (8) are respectively rotatably mounted on two first rotating arms (6). Two second rotating arms (9) are fixedly mounted on the outer side of each of the two rotating shafts (8). One end of each of the two second rotating arms (9) is rotatably mounted on the same horizontal plate (10). The bottom ends of the tarpaulin (11) are fixedly connected to the top of the mounting plate (3) and the horizontal plate (10) respectively.

2. The portable sunshade canopy for wheelchairs according to claim 1, characterized in that, The locking mechanism includes a pull plate (14), which is located on one side of the mounting plate (3). Two locking rods (13) are fixedly installed on one side of the pull plate (14), and the two locking rods (13) are respectively inserted into two locking holes (12).

3. The portable sunshade canopy for wheelchairs according to claim 2, characterized in that, Two sliding holes are provided on one side of the mounting plate (3), and the outer sides of the two locking rods (13) slide in contact with the inner walls of the two sliding holes respectively. Two grooves are provided on one side of the mounting plate (3), and one end of a spring (15) is fixedly installed on the inner wall of one side of each groove. The other end of each spring (15) is fixedly connected to the pull plate (14).

4. The portable sunshade canopy for wheelchairs according to claim 3, characterized in that, One end of each of the two first rotating arms (6) is provided with a U-shaped opening (7), and the top inner wall and bottom inner wall of the U-shaped opening (7) are provided with cylindrical grooves. The two ends of the rotating shaft (8) are respectively rotatably installed in the corresponding two cylindrical grooves.

5. The portable sunshade canopy for wheelchairs according to claim 4, characterized in that, The bottom of the rotating shaft 2 (8) is provided with a regular polygonal groove (18), and a regular polygonal hole is provided on the inner wall of the bottom of the cylindrical groove. A regular polygonal block (19) is slidably installed in the regular polygonal hole, and the top of the regular polygonal block (19) is engaged with the regular polygonal groove (18).

6. The portable sunshade canopy for wheelchairs according to claim 5, characterized in that, A reset block (20) is fixedly installed at the bottom of the regular polygonal block (19), and one end of a reset spring (21) is fixedly installed at the top of the reset block (20). The other end of the reset spring (21) is fixedly connected to the first rotating arm (6).

7. The portable sunshade canopy for wheelchairs according to claim 6, characterized in that, A T-shaped limiting rod is fixedly installed on the outer side of the first rotating arm (6), and the reset block (20) is slidably connected to the T-shaped limiting rod.

8. The portable sunshade canopy for wheelchairs according to claim 7, characterized in that, Both connecting blocks (1) are U-shaped structures, and locking bolts (22) are threaded on both connecting blocks (1).

Images