unicycle

Abstract

The utility model belongs to the technical field of medical auxiliary instrument, provide a single -leg car, including main frame, front support, rear support, seat frame, handle frame and brake system respectively installed on main frame, front support rotation setting in one end of main frame, front support bottom is provided with front wheel, rear support is hinged in the other end of main frame, and the bottom of rear support is provided with rear wheel, seat frame sets up one end of main frame close to rear support, handle frame sets up one end of main frame close to front support, and the rear support is provided with shock absorber between main frame, and the both ends of shock absorber are hinged with rear support and main frame, and brake mechanism includes brake handle, traction piece and brake piece, brake handle is installed on handle frame, brake piece includes connecting portion and brake portion, connecting portion is hinged with rear support, one end of brake portion is connected with connecting portion, and the other end extends towards the edge of rear wheel, one end of traction piece is connected with brake handle, and the other end is connected with connecting portion, simple structure is easy to use, and good comfort.

Description

Technical Field

[0001] This utility model relates to the field of medical assistive device technology, and in particular to a single-leg bicycle. Background Technology

[0002] A single-leg bicycle, also known as a walking aid or one-legged vehicle, is a mobility aid specifically designed for people with leg or foot disabilities, suitable for amputees, lame individuals, and other similar situations. Functionally, a single-leg bicycle mainly consists of a body system that provides load-bearing and guidance, a movement system that enables the body system to move forward, backward, and turn, and a safety system that enables braking and deceleration.

[0003] The main drawback of existing single-leg bicycles is the lack of a suspension structure. If the user is heavy or travels on bumpy roads, the single-leg bicycle is prone to significant vibration due to pressure or impact, resulting in a poor user experience and a high safety risk.

[0004] In addition, the existing braking system of single-leg bicycles generally involves installing a brake disc on the wheel and then controlling the contact between the brake pads or brake discs to achieve braking. The braking structure is relatively complex, and the brake pads and brake discs are usually installed inside. During maintenance, it is not possible to intuitively understand the wear of the braking system, which makes installation, debugging, and subsequent maintenance more complicated and costly.

[0005] The technical problem to be solved by this utility model is: how to solve the problems of low comfort and complex braking system of existing single-leg bicycles. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a single-leg bicycle, which has the characteristics of simple structure, easy use and good comfort.

[0007] The technical solution adopted by this utility model is as follows: a single-leg bicycle, including a main frame, a front support, a rear support, a seat frame and a handlebar frame respectively mounted on the main frame. The front support is rotatably mounted at one end of the main frame, and a front wheel is provided at the bottom of the front support. The rear support is hinged to the other end of the main frame, and a rear wheel is provided at the bottom of the rear support. The seat frame is located at one end of the main frame near the rear support. The handlebar frame is located at one end of the main frame near the front support. A shock absorber is provided between the rear support and the main frame, and the two ends of the shock absorber are respectively hinged to the rear support and the main frame.

[0008] It also includes a braking mechanism, which includes a brake lever, a traction component, and a brake component. The brake lever is mounted on the handlebar frame. The brake component includes a connecting part and a brake part. The connecting part is hinged to the rear support. One end of the brake part is connected to the connecting part, and the other end extends toward the edge of the rear wheel. One end of the traction component is connected to the brake lever, and the other end is connected to the connecting part.

[0009] The single-leg bicycle of this application achieves good shock absorption by setting the rear support and the main frame to be hinged and installing a shock absorber between the rear support and the main frame, thereby improving the user experience and reducing risks. Furthermore, by setting an external brake component, the brake part contacts the edge of the rear wheel to achieve braking, eliminating the need for an additional brake disc. This simplifies the structure of the braking system, facilitates installation and maintenance, and allows for a direct view of the wear condition of the braking system, making it safer.

[0010] In some embodiments, the braking mechanism further includes a reset member connected to the rear bracket and the connecting portion, which drives the brake portion to remain separated from the rear wheel.

[0011] By adopting the above technical solution, the reset component can keep the brake part separated from the rear wheel, making the single-leg bicycle move more smoothly without the need for brakes, while also reducing the wear and tear on the brake components.

[0012] In some implementations, the reset element is a spring or a magnet.

[0013] In some implementations, there are two rear wheels, which are respectively located on opposite sides of the rear support.

[0014] In some implementations, there are two brake units, which are connected to opposite sides of the connecting part, and the two brake units correspond one-to-one with the two rear wheels.

[0015] Using the above technical solution, both rear wheels can be controlled simultaneously with one brake lever, resulting in good braking effect, high safety performance, and simple structure.

[0016] In some implementations, there are two front wheels, which are positioned on opposite sides of the front support, and the track width of the two front wheels is greater than the track width of the two rear wheels.

[0017] By adopting the above technical solution and setting two front wheels and two rear wheels, the overall stability of the vehicle can be improved. The front wheel track being wider than the rear wheel track makes the vehicle more stable when turning. It also allows the user to place their feet on the linkage between the two front wheels when in a seated position, making the ride more comfortable.

[0018] In some embodiments, the riding frame includes a first telescopic rod and a saddle disposed at one end of the first telescopic rod. A first sleeve is disposed on the main frame and slides with the first telescopic rod. A first locking element is disposed on the first sleeve. A plurality of first limiting holes corresponding to the first locking element are disposed on the first telescopic rod.

[0019] By adopting the above technical solution, the saddle height can be adjusted according to the user's needs, making the ride more comfortable and more versatile.

[0020] In some embodiments, the saddle surface is provided with a leg limiting groove and a hip positioning groove, the leg limiting groove extends along both ends of the main frame, and the hip positioning groove is perpendicular to the leg limiting groove.

[0021] Using the above technical solution, the leg limiting groove can provide knee and leg positioning for the user when kneeling, playing a role in preventing slippage and making the ride more comfortable; while the hip positioning groove can provide hip positioning for the user when sitting, playing a role in preventing slippage.

[0022] In some embodiments, the handlebar includes a second sleeve, a second telescopic rod, and a gripping rod. The bottom of the second sleeve is hinged to the main frame, and the bottom of the second sleeve is connected to the main frame by a folding lock. The second telescopic rod is slidably engaged with the second sleeve. A second locking element is provided on the second sleeve. A plurality of second limiting holes corresponding to the second locking element are provided on the second telescopic rod. The gripping rod is connected to the second telescopic rod.

[0023] By adopting the above technical solution, the height of the grip bar can be adjusted according to the user's body size, making the grip more comfortable and the versatility better.

[0024] In some implementations, a storage box is also included, which is mounted on the handle holder.

[0025] By adopting the above technical solution, the storage box can make it easier for users to place items, and setting it on the handle rack makes it more convenient to pick up and put in. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a single-legged vehicle according to a preferred embodiment of the present invention;

[0027] Figure 2 for Figure 1 A structural schematic diagram of the single-legged vehicle from another perspective;

[0028] Figure 3 for Figure 2 The diagram shows the structure of the rear bracket, brake components, and reset components.

[0029] In the diagram: 100, Single-leg bicycle; 10, Main frame; 11, First sleeve; 12, First locking element; 13, Folding lock; 20, Front support; 21, Front wheel; 22, Connecting rod; 30, Rear support; 31, Rear wheel; 40, Seat frame; 41, First telescopic rod; 42, Saddle; 421, Leg limiting groove; 422, Hip positioning groove; 50, Handlebar frame; 51, Second sleeve; 52, Second telescopic rod; 53, Grip bar; 54, Second locking element; 60, Shock absorber; 70, Braking mechanism; 71, Brake lever; 72, Brake component; 721, Connecting part; 722, Brake part; 73, Reset component; 80, Storage box. Detailed Implementation

[0030] 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.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. When the number of elements is referred to as "multiple," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figures 1 to 3A preferred embodiment of the present invention, a single-leg bicycle 100, includes a main frame 10, a front support 20, a rear support 30, a seat frame 40, and a handlebar frame 50 respectively mounted on the main frame 10. The front support 20 is rotatably mounted at one end of the main frame 10, and a front wheel 21 is provided at the bottom of the front support 20. The rear support 30 is hinged to the other end of the main frame 10, and a rear wheel 31 is provided at the bottom of the rear support 30. The seat frame 40 is located at the end of the main frame 10 near the rear support 30. The handlebar frame 50 is located at the end of the main frame 10 near the front support 20. The rear support 30 and... Shock absorbers 60 are provided between the main frames 10, and the two ends of the shock absorbers 60 are respectively hinged to the rear bracket 30 and the main frame 10; it also includes a braking mechanism 70, which includes a brake lever 71, a traction member (not shown) and a brake member 72. The brake lever 71 is mounted on the handlebar bracket 50. The brake member 72 includes a connecting part 721 and a brake part 722. The connecting part 721 is hinged to the rear bracket 30. One end of the brake part 722 is connected to the connecting part 721, and the other end extends toward the edge of the rear wheel 31. One end of the traction member is connected to the brake lever 71, and the other end is connected to the connecting part 721. The single-leg bicycle 100 of this application, by setting the rear support 30 and the main frame 10 as a hinged connection, and setting a shock absorber 60 between the rear support 30 and the main frame 10, can play a good shock absorption role, thereby improving the user experience and reducing risks; and by setting an external brake component 72, the brake part 722 contacts the edge of the rear wheel 31 to achieve braking, eliminating the need for an additional brake disc, which simplifies the structure of the braking system, facilitates installation and maintenance, and allows for a direct view of the wear condition of the braking system, making it safer.

[0034] like Figure 2 and Figure 3 As shown, the braking mechanism 70 also includes a reset member 73, which connects the rear support 30 and the connecting part 721. The reset member 73 drives the brake part 722 to remain separated from the rear wheel 31. The reset member 73 can keep the brake part 722 separated from the rear wheel 31, making the single-leg bicycle 100 move more smoothly when no brake is needed, and also reducing the wear of the brake part 72.

[0035] Alternatively, the reset element 73 may be a spring or a magnet.

[0036] In this embodiment, the reset member 73 is a tension spring, one end of which is connected to the rear bracket 30, and the other end is connected to the connecting part 721 of the brake member 72.

[0037] Preferably, in order to make the structure of the single-leg bicycle 100 more stable, there are two rear wheels 31, and the two rear wheels 31 are respectively set on opposite sides of the rear support 30.

[0038] Correspondingly, such as Figure 2 and Figure 3As shown, there are two brake units 722, which are connected to opposite sides of the connecting part 721, and each brake unit 722 corresponds to one of the two rear wheels 31. Both rear wheels 31 can be controlled simultaneously by a single brake lever 71, resulting in good braking effect, high safety performance, and a simple structure.

[0039] In this embodiment, the overall structure of the connecting part 721 is U-shaped. The two sides of the U-shape are hinged to the rear bracket 30, and the bottom is connected to the traction member and the elastic member. This structure can make the brake member 72 be subjected to balanced force when braking, and at the same time facilitates the connection of the traction member and the elastic member to the connecting part 721.

[0040] Preferably, such as Figure 1 and Figure 2 As shown, there are two front wheels 21, which are positioned on opposite sides of the front bracket 20 and connected by a connecting rod 22. The track width of the two front wheels 21 is greater than that of the two rear wheels 31. By using two front wheels 21 and two rear wheels 31, the overall stability of the vehicle is improved. The larger track width of the front wheels 21 makes the vehicle more stable when turning, and also allows the user to place their feet on the connecting rod between the two front wheels 21 when seated, making the ride more comfortable.

[0041] The riding frame 40 includes a first telescopic rod 41 and a saddle 42 disposed at one end of the first telescopic rod 41. A first sleeve 11 is provided on the main frame 10, which slides with the first telescopic rod 41. A first locking element 12 is provided on the first sleeve 11. The first telescopic rod 41 has several first limiting holes corresponding to the first locking element 12. This design allows the height of the saddle 42 to be adjusted according to the user's needs, making riding more comfortable and improving versatility. Furthermore, the riding frame 40 can be retracted during transportation or storage, making it smaller and easier to store.

[0042] Furthermore, the surface of the saddle 42 is provided with a leg limiting groove 421 and a hip positioning groove 422. The leg limiting groove 421 extends along both ends of the main frame 10, and the hip positioning groove 422 is perpendicular to the leg limiting groove 421. The leg limiting groove 421 can provide knee and leg positioning for the user when kneeling, playing a role in preventing slippage and making the ride more comfortable; while the hip positioning groove 422 can provide hip positioning for the user when sitting, playing a role in preventing slippage.

[0043] In some embodiments, the handlebar 50 includes a second sleeve 51, a second telescopic rod 52, and a gripping rod 53. The bottom of the second sleeve 51 is hinged to the main frame 10, and the bottom of the second sleeve 51 is connected to the main frame 10 via a folding lock 13. The second telescopic rod 52 is slidably engaged with the second sleeve 51. A second locking element 54 is provided on the second sleeve 51, and a plurality of second limiting holes corresponding to the second locking element 54 are provided on the second telescopic rod 52. The gripping rod 53 is connected to the second telescopic rod 52. The height of the gripping rod 53 can be adjusted according to the user's body size, making the grip more comfortable and improving versatility. The above structure also facilitates folding and storage, reducing storage and transportation space.

[0044] In one embodiment, a storage box 80 is also included, which is mounted on the handle holder 50. The storage box 80 makes it convenient for users to place items, and placing it on the handle holder 50 makes it easier to access them.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-leg bicycle, comprising a main frame (10), a front support (20), a rear support (30), a seat frame (40), and a handlebar frame (50) respectively mounted on the main frame (10), characterized in that, The front support (20) is rotatably mounted on one end of the main frame (10), and a front wheel (21) is provided at the bottom of the front support (20). The rear support (30) is hinged to the other end of the main frame (10), and a rear wheel (31) is provided at the bottom of the rear support (30). The seat frame (40) is located on the end of the main frame (10) near the rear support (30). The handlebar frame (50) is located on the end of the main frame (10) near the front support (20). A shock absorber (60) is provided between the rear support (30) and the main frame (10), and the two ends of the shock absorber (60) are hinged to the rear support (30) and the main frame (10) respectively. It also includes a braking mechanism (70), which includes a brake lever (71), a traction member and a brake member (72). The brake lever (71) is mounted on the handlebar bracket (50). The brake member (72) includes a connecting part (721) and a brake part (722). The connecting part (721) is hinged to the rear bracket (30). One end of the brake part (722) is connected to the connecting part (721), and the other end extends toward the edge of the rear wheel (31). One end of the traction member is connected to the brake lever (71), and the other end is connected to the connecting part (721).

2. The one-legged bicycle according to claim 1, characterized in that, The braking mechanism (70) further includes a reset member (73), which connects the rear bracket (30) and the connecting part (721), and the reset member (73) drives the brake part (722) to remain separated from the rear wheel (31).

3. The one-legged bicycle according to claim 2, characterized in that, The reset element (73) is a spring or a magnet.

4. The one-legged bicycle according to claim 1, characterized in that, The number of rear wheels (31) is two, and the two rear wheels (31) are respectively arranged on opposite sides of the rear bracket (30).

5. The one-legged bicycle according to claim 4, characterized in that, There are two brake parts (722), which are respectively connected to the opposite sides of the connecting part (721). The two brake parts (722) correspond one-to-one with the two rear wheels (31).

6. The one-legged vehicle according to claim 4, characterized in that, The number of front wheels (21) is two, and the two front wheels (21) are arranged on opposite sides of the front bracket (20). The wheel track of the two front wheels (21) is greater than the wheel track of the two rear wheels (31).

7. The one-legged bicycle according to claim 1, characterized in that, The riding frame (40) includes a first telescopic rod (41) and a saddle (42) disposed at one end of the first telescopic rod (41). The main frame (10) is provided with a first sleeve (11) that slides with the first telescopic rod (41). The first sleeve (11) is provided with a first locking member (12). The first telescopic rod (41) is provided with a plurality of first limiting holes corresponding to the first locking member (12).

8. The one-legged bicycle according to claim 7, characterized in that, The saddle (42) has a leg limiting groove (421) and a hip positioning groove (422) on its surface. The leg limiting groove (421) extends along both ends of the main frame (10), and the hip positioning groove (422) is perpendicular to the leg limiting groove (421).

9. The one-legged bicycle according to claim 1, characterized in that, The handlebar bracket (50) includes a second sleeve (51), a second telescopic rod (52), and a gripping rod (53). The bottom of the second sleeve (51) is hinged to the main frame (10), and the bottom of the second sleeve (51) is connected to the main frame (10) by a folding lock (13). The second telescopic rod (52) is slidably engaged with the second sleeve (51). A second locking element (54) is provided on the second sleeve (51). A plurality of second limiting holes corresponding to the second locking element (54) are provided on the second telescopic rod (52). The gripping rod (53) is connected to the second telescopic rod (52).

10. The one-legged vehicle according to claim 1, characterized in that, It also includes a storage box (80) which is mounted on the handle (50).

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