Leg supporting and rotating assembly of electric wheelchair

Abstract

The utility model discloses an electrically powered wheelchair leg supporting rotating assembly, and particularly relates to the technical field of electrically powered wheelchairs, the electrically powered wheelchair leg supporting rotating assembly comprises an electrically powered wheelchair supporting rod, a leg supporting frame is arranged at the upper end of the electrically powered wheelchair supporting rod, a leg supporting rod is arranged on the end face of one side of the leg supporting frame, and a limiting inserting hole is formed in the upper end of the electrically powered wheelchair supporting rod; a supporting limiting rod is arranged on the upper side of the outer end face of the electric wheelchair supporting rod, and a limiting clamping groove is formed in the end face of one side of the supporting limiting rod. During actual use, the leg supporting rod can be effectively and conveniently mounted and fixed under the corresponding arrangement state of the limiting insertion rod, the annular sliding groove, the mounting sliding groove, the limiting insertion hole, the limiting clamping groove and the limiting clamping block, and meanwhile the leg supporting rod can be effectively and conveniently mounted and fixed under the corresponding arrangement state of the mounting clamping rod, the limiting convex block, the limiting clamping groove and the adaptive sliding rod. The mounting clamping rod can be conveniently clamped and fixed, so that the stability and convenience of mounting and rotating the leg supporting frame are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, and more specifically to a leg support rotating assembly of an electric wheelchair. Background Art

[0002] The electric wheelchair is a traditional manual wheelchair that is upgraded by adding high-performance power drive devices, intelligent control devices, batteries and other components. With a manually operated intelligent controller, the new generation of intelligent wheelchairs can drive the wheelchair to complete multiple functions such as forward, backward, steering, standing, lying, etc. It is a high-tech product that combines modern precision machinery, intelligent numerical control, engineering mechanics and other fields. When patients with lower limb disabilities are undergoing lower limb rehabilitation training, they need to stand and walk for a long time for rehabilitation. For example, the electric wheelchair leg support rotating assembly and electric wheelchair described in the prior art publication number (CN215503850U) drive the rotation of the rear wheel by controlling the driving motor through the operation controller, and the rotation of the rear wheel drives the movement of the electric wheelchair body. During rehabilitation training, the patient can pull the foot span handle, and the fixing pin of the foot span handle is disengaged from the positioning hole during the lifting process, and the pull pin is disengaged from the jack on the fixing block, and then the support connecting rod is rotated to transfer the foot pedal, which is convenient for the patient to perform rehabilitation training of standing or walking.

[0003] When the above device is in use, the foot span handle is fixed by the cooperation of the fixing pin and the positioning hole, thereby ensuring the stability and firmness of the support connecting rod connection. It is safe and practical. By arranging two sockets on the fixing block and making the line connecting the two sockets and the axis of the fixing rod at 90 degrees, the overall stability of the support connecting rod before and after rotation is ensured. It is efficient and practical. However, when the wheelchair leg support is damaged, it is inconvenient to replace and repair it. At the same time, it is inconvenient to fix it after the rotation is completed, which affects its convenience of use. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an electric wheelchair leg support rotating assembly. The technical problem to be solved by the utility model is: how to increase the convenience of replacing and maintaining the rotating parts of the wheelchair leg support.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric wheelchair leg support rotation assembly comprises an electric wheelchair support rod, a leg support frame is provided at the upper end of the electric wheelchair support rod, a leg support rod is provided at one side end surface of the leg support frame, a limit plug hole is provided at the upper end of the electric wheelchair support rod, a support limit rod is provided at the upper side of the outer end surface of the electric wheelchair support rod, a limit slot is provided at one side end surface of the support limit rod, and a limit block is provided at the inner end surface of the limit plug hole;

[0006] An adapting slide groove is provided inside the supporting limit rod, an adapting slide rod is provided inside the adapting slide groove, a lever is provided on the outer end surface of the adapting slide rod, a supporting spring is provided on one end surface of the adapting slide rod, and a square limit rod is provided on one side of the outer end surface of the adapting slide groove.

[0007] In a preferred embodiment, the leg support rod is provided with a foot support rod on a side away from the leg support frame, and the lower end of the leg support frame is provided with a limit rod on a side away from the leg support rod;

[0008] An annular sliding groove is provided on the outer end surface of the limiting plug rod, and an installation sliding groove is provided on the outer end surface of the limiting plug rod at the lower end of the annular sliding groove.

[0009] In a preferred embodiment, the lower end surface of the leg support frame is provided with a mounting clamp rod on one side of the end surface close to the limiting plug rod, and the lower end surface of the mounting clamp rod is provided with a limiting convex block;

[0010] The outer end surface of the limiting plug rod is matched with the inner end surface of the limiting plug hole, and the inner end surfaces of the annular slide groove and the installation slide groove are both matched with the outer end surface of the limiting block.

[0011] In a preferred embodiment, the number of the installation slide groove and the limit block is two, and they are arranged in a mirror image state on both sides of the transverse central axis in the top view direction of the limit plug rod;

[0012] The upper end surface of the support limit rod in the main viewing direction is arranged in a coplanar state with the upper end surface of the electric wheelchair support rod in the main viewing direction.

[0013] In a preferred embodiment, the inner end surface of the limit slot is matched with the outer end surface of the mounting rod, and the height of the mounting rod in the main viewing direction is the same as the height of the support limit rod in the main viewing direction;

[0014] The inner end surface of the adapting slide groove is adapted to the inner end surface of the adapting slide rod, the outer end surface of the shifting rod is adapted to the inner end surface of the square limit rod, and one end surface of the adapting slide rod is arranged in an inclined state.

[0015] In a preferred embodiment, there are two support springs, which are arranged in a mirror state on both sides of the transverse central axis of the adapter slide bar in the main viewing direction, and the diameter of the mounting rod in the top view direction is smaller than the diameter of the limiting convex block in the top view direction.

[0016] Technical effects and advantages of the utility model:

[0017] When the utility model is actually used, the leg support rod can be effectively and conveniently installed and fixed under the corresponding setting conditions of the limit plug rod, annular slide groove, installation slide groove, limit plug hole, limit card slot and limit card block. At the same time, under the corresponding setting conditions of the installation card rod, limit convex block, limit card slot and adapter slide rod, the installation card rod can be conveniently clamped and fixed, thereby increasing the stability and convenience of the installation and rotation of the leg support frame. At the same time, under the corresponding setting conditions of the adapter slide rod, adapter slide groove, support spring, lever and square limit rod, the support spring will support one end of the adapter slide rod to ensure the stability of the rotation installation of the leg support frame, thereby facilitating the replacement and maintenance of the leg support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the connection structure of the leg support frame of the utility model.

[0020] Figure 3 It is a schematic diagram of the partial cross-section connection structure of the leg support frame of the utility model.

[0021] Figure 4 This is a schematic diagram of the connection structure of the adaptive slide rod of the utility model.

[0022] The accompanying drawings are marked as: 1 electric wheelchair support rod, 2 leg support rod, 3 foot support rod, 4 leg support frame, 5 support limit rod, 6 mounting clamp rod, 7 limit convex block, 8 limit plug rod, 9 annular slide groove, 10 mounting slide groove, 11 limit plug hole, 12 limit clamp groove, 13 limit clamp block, 14 adapter slide rod, 15 adapter slide groove, 16 support spring, 17 lever, 18 square limit rod. DETAILED DESCRIPTION

[0023] The utility model provides a leg support rotating assembly for an electric wheelchair, such as Figure 1 As shown, it includes an electric wheelchair support rod 1, a leg support frame 4 is provided at the upper end thereof, a leg support rod 2 is provided on one side end face of the leg support frame 4, a support limit rod 5 is provided on the upper side of the outer end face of the electric wheelchair support rod 1, and the leg support rod 2 is provided with a foot support rod 3 on the side away from the leg support frame 4, and the upper end face of the support limit rod 5 in the main viewing direction is arranged in a coplanar state with the upper end face of the electric wheelchair support rod 1 in the main viewing direction.

[0024] like Figure 2 and 3As shown, a limiting plug hole 11 is provided at the upper end of the electric wheelchair support rod 1, a limiting card slot 12 is provided on one side end face of the support limiting rod 5, a limiting card block 13 is provided on the inner end face of the limiting plug hole 11, a limiting plug rod 8 is provided on the lower end of the leg support frame 4 on the side away from the leg support rod 2, an annular groove 9 is provided on the outer end face of the limiting plug rod 8, an installation groove 10 is provided on the outer end face of the limiting plug rod 8 at the lower end of the annular groove 9, a mounting card rod 6 is provided on the lower end face of the leg support frame 4 on the side end face close to the limiting plug rod 8, a limiting convex block 7 is provided on the lower end face of the mounting card rod 6, and the outer end face of the limiting plug rod 8 is in contact with the limiting convex block 7. The inner end surface of the positioning socket 11 is adapted to the inner end surface of the annular slide groove 9 and the installation slide groove 10, and the inner end surfaces of the annular slide groove 9 and the installation slide groove 10 are adapted to the outer end surface of the limit block 13. The number of the installation slide groove 10 and the limit block 13 is provided with two, and they are arranged in a mirror state on both sides of the transverse central axis of the limit plug rod 8 in the top view direction. The inner end surface of the limit slot 12 is adapted to the outer end surface of the installation clamp rod 6. The height of the installation clamp rod 6 in the main viewing direction is the same as the height of the support limit rod 5 in the main viewing direction. The end surface of one side of the adaptation slide rod 14 is arranged in an inclined state, and the diameter of the installation clamp rod 6 in the top view direction is smaller than the diameter of the limit convex block 7 in the top view direction.

[0025] like Figure 4 As shown, an adapting groove 15 is provided inside the supporting and limiting rod 5, an adapting slide rod 14 is provided inside the adapting groove 15, a lever 17 is provided on the outer end face of the adapting slide rod 14, a supporting spring 16 is provided on one end face of the adapting slide rod 14, a square limiting rod 18 is provided on one side of the outer end face of the adapting groove 15, the inner end face of the adapting groove 15 is matched with the inner end face of the adapting slide rod 14, the outer end face of the lever 17 is matched with the inner end face of the square limiting rod 18, one end face of the adapting slide rod 14 is arranged in an inclined state, two supporting springs 16 are provided, and they are arranged in a mirrored state on both sides of the transverse central axis of the main viewing direction of the adapting slide rod 14.

[0026] Working principle of this utility model:

[0027] When the utility model is installed and used, the staff inserts the limiting plug rod 8 on one side of the lower end of the adapter slide bar 14 into the limiting plug hole 11, and clamps the installation slide groove 10 with the limiting block 13. Then, after the clamping is completed, the staff can rotate the leg support frame 4 to make the installation clamp rod 6 clamped in the limiting clamp groove 12. Then, when one end of the adapter slide bar 14 is tilted, it will be clamped into the limiting clamp groove 12. Then, the support spring 16 set will support the adapter slide bar 14, thereby pushing the adapter slide bar 14 back to its original position. Then, one end of the adapter slide bar 14 can be clamped on the outside of the installation clamp rod 6, and the limiting block 13 set at the same time will be clamped into the inside of the annular slide groove 9.

[0028] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric wheelchair leg support rotating assembly, characterized in that: include: An electric wheelchair support rod (1) is provided with a leg support frame (4) at its upper end, a leg support rod (2) is provided on one end surface of the leg support frame (4), a limit insertion hole (11) is provided at the upper end of the electric wheelchair support rod (1), a support limit rod (5) is provided on the upper side of the outer end surface of the electric wheelchair support rod (1), a limit clamping groove (12) is provided on one end surface of the support limit rod (5), and a limit clamping block (13) is provided on the inner end surface of the limit insertion hole (11); An adapting slide groove (15) is provided inside the supporting limit rod (5), an adapting slide rod (14) is provided inside the adapting slide groove (15), a shifting rod (17) is provided on the outer end surface of the adapting slide rod (14), a supporting spring (16) is provided on one end surface of the adapting slide rod (14), and a square limit rod (18) is provided on one side of the outer end surface of the adapting slide groove (15).

2. The electric wheelchair leg support rotating assembly according to claim 1, characterized in that: The leg support rod (2) is provided with a foot support rod (3) on a side away from the leg support frame (4), and the lower end of the leg support frame (4) is provided with a limiting plug rod (8) on a side away from the leg support rod (2); An annular sliding groove (9) is provided on the outer end surface of the limiting insertion rod (8), and an installation sliding groove (10) is provided on the outer end surface of the limiting insertion rod (8) at the lower end of the annular sliding groove (9).

3. The electric wheelchair leg support rotating assembly according to claim 2, characterized in that: The lower end surface of the leg support frame (4) is provided with a mounting clamp rod (6) on one end surface close to the limiting plug rod (8), and the lower end surface of the mounting clamp rod (6) is provided with a limiting convex block (7); The outer end surface of the limiting plug rod (8) is matched with the inner end surface of the limiting plug hole (11), and the inner end surfaces of the annular slide groove (9) and the installation slide groove (10) are matched with the outer end surface of the limiting block (13).

4. The electric wheelchair leg support rotating assembly according to claim 2, characterized in that: The number of the installation slide groove (10) and the limit block (13) is two, and they are arranged in a mirror image state on both sides of the transverse central axis of the limit plug rod (8) in the top view direction; The upper end surface of the support limiting rod (5) in the main viewing direction is arranged in a coplanar state with the upper end surface of the electric wheelchair support rod (1) in the main viewing direction.

5. The electric wheelchair leg support rotating assembly according to claim 3, characterized in that: The inner end surface of the limit clamping groove (12) is matched with the outer end surface of the mounting clamping rod (6), and the height of the mounting clamping rod (6) in the main viewing direction is the same as the height of the supporting limit clamping rod (5) in the main viewing direction; The inner end surface of the adapting slide groove (15) is adapted to the inner end surface of the adapting slide rod (14), the outer end surface of the shifting rod (17) is adapted to the inner end surface of the square limiting rod (18), and one end surface of the adapting slide rod (14) is arranged in an inclined state.

6. The electric wheelchair leg support rotating assembly according to claim 3, characterized in that: The number of the support springs (16) is two, and they are arranged in a mirror image on both sides of the transverse central axis of the main viewing direction of the adapting slide rod (14), and the diameter of the mounting clamp rod (6) in the top-view direction is smaller than the diameter of the limiting convex block (7) in the top-view direction.

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