Lower limb supporting device for wheelchair

Abstract

The lower limb supporting device for the wheelchair comprises a main rod, the side face of the main rod is connected with an installation piece through a connecting rod, and the installation piece comprises an installation ring, a screw rod and a nut; the supporting plate is fixedly mounted on the rear side of the main rod; the foot anti-falling part is installed on the supporting plate, and the foot anti-falling part comprises a double-thread rod, a threaded connection block, a moving strip, a sliding block and a clamping plate; the mounting base is fixedly connected to the side face of the supporting plate, and the top of the mounting base is connected with a rotating rod through a first bearing; the first bevel gear is fixedly mounted on the outer side of the double-thread rod, and the second bevel gear is fixedly mounted on the outer side of the rotating rod; the rotating disc is fixedly mounted at the top end of the rotating rod; and the rotating disc limiting piece is mounted on the side face of the mounting base. Due to the fact that the height of the rotating disc is relatively high, a patient with the lower limb inconvenience can conveniently fix the feet by himself or herself, and the damaged leg falling prevention belt can be conveniently replaced.

Description

Technical Field

[0001] This utility model relates to the field of lower limb support devices, specifically to a lower limb support device for wheelchairs. Background Technology

[0002] To prevent injuries to patients with lower limb disabilities from falls, wheelchairs designed to secure the legs have been developed. For example, existing technology discloses a wheelchair with a lower limb support structure (Country of Origin: China, Publication No.: CN204734632U, Publication Date: 2015.11.04). This wheelchair includes a main body with two armrests, two wheels, and a buttock support. The lower limb support structure includes two leg straps, one end of which is connected to the main body, and the other end has a footrest. The footrest has straps for securing the feet, and the leg straps also have straps for securing the legs. This wheelchair offers the following advantages: it securely secures the patient's lower limbs, preventing them from becoming uncontrollable and thus preventing injury.

[0003] However, the patented technology product still has the following defects in actual use: because the foot straps on the footrest are set at a low height, patients with lower limb disabilities will find it difficult and strenuous to strap their feet to themselves, which is inconvenient to use. Therefore, it is necessary to design a wheelchair lower limb support device that allows patients with lower limb disabilities to fix their feet themselves. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a lower limb support device for wheelchairs. Because the height of the rotating plate is relatively high, it is convenient for patients with lower limb disabilities to fix their feet themselves, and it also makes it easy to replace damaged leg anti-fall straps.

[0005] According to the technical solution provided in the embodiments of this application, a lower limb support device for a wheelchair includes:

[0006] The main rod has a mounting component connected to its side via a connecting rod. The mounting component includes a mounting ring, a screw, and a nut. The connecting rod is fixedly connected between the main rod and one of the mounting rings. The end of the screw passes through both mounting rings. The nut is screwed onto the outside of the screw. A first anti-slip pad is adhered to the side of the mounting ring. Both the first anti-slip pad and the side of the mounting ring have a first through hole corresponding to the screw.

[0007] A support plate is fixedly installed on the rear side of the main rod; a baffle is fixedly installed on the side of the support plate.

[0008] A foot anti-fall device is installed on a support plate. The foot anti-fall device includes a double-threaded rod, a screw block, a moving strip, a slider, and a clamping plate. The support plate has an internal receiving cavity. The double-threaded rod is connected to the support plate through a second bearing. The outer side of the double-threaded rod has a first thread and a second thread. One side of the screw block is screwed to the first thread, and the other side of the screw block is screwed to the second thread. The moving strip is fixedly installed on the side of the screw block and is located in the receiving cavity. The slider is fixedly installed between the moving strip and the clamping plate. The surface of the support plate has a first sliding opening. The slider slides in contact with the first sliding opening. The end of the clamping plate slides in contact with the support plate. A flexible pad is adhered to the side of the clamping plate.

[0009] The mounting base is fixedly connected to the side of the support plate, and a rotating rod is connected to the top of the mounting base through a first bearing; the bottom of the mounting base is an open structure, and the surface of the support plate is provided with a through hole corresponding to the rotating rod, through which the rotating rod passes.

[0010] The first bevel gear is fixedly installed on the outside of the double-threaded rod, and the second bevel gear is fixedly installed on the outside of the rotating rod; the first bevel gear meshes with the second bevel gear;

[0011] A rotating disk, which is fixedly mounted on the top of the rotating rod;

[0012] A rotating disk limiting component is installed on the side of the mounting base. The rotating disk limiting component includes a fixed base, a sliding plate, a spring, a pressure block, and a limiting post. The fixed base is fixedly installed on the side of the mounting base, the sliding plate is slidably installed inside the fixed base, the spring connects the sliding plate and the fixed base, the front side of the fixed base has a second sliding opening, the pressure block is fixedly installed on the front side of the sliding plate and slides in contact with the second sliding opening, the front end of the pressure block is located on the front side of the fixed base, the limiting post is fixedly installed on the side of the sliding plate, the side of the fixed base has a second through hole corresponding to the limiting post, the side of the rotating disk has a limiting groove spaced apart, and the end of the limiting post passes through the second through hole and extends into the limiting groove.

[0013] A first fixing ring is fixedly installed on the side of the mounting base;

[0014] A leg anti-fall strap, the end of which passes through the first fixing ring; the height of the leg anti-fall strap is higher than the height of the clamping plate;

[0015] The male buckle is fixedly installed at both ends of the leg anti-fall strap, and the female buckle is fixedly installed at intervals on the side of the leg anti-fall strap; the male buckle and the female buckle are fastened together.

[0016] A flashlight mounting bracket is installed on the front side of a mounting base. The flashlight mounting bracket includes a base plate, a fixing rod, a threaded sleeve, a sliding sleeve, a second fixing ring, a movable ring, a screw, and a sliding rod. The base plate is fixedly installed on the front side of the mounting base. The fixing rod is fixedly installed above the base plate. The threaded sleeve and the sliding sleeve are fixedly installed between the fixing rod and the second fixing ring. The screw is mounted on the side of the movable ring via a third bearing. The sliding rod is fixedly installed on the side of the movable ring. A second anti-slip pad is adhered to the side of both the second fixing ring and the movable ring. A first opening corresponding to the screw is provided on the side of both the second anti-slip pad and the second fixing ring. The end of the screw passes through the first opening and is screwed into the threaded sleeve. A second opening corresponding to the sliding rod is provided on the side of both the second anti-slip pad and the second fixing ring. The end of the sliding rod passes through the second opening and extends into the sliding sleeve.

[0017] In summary, the beneficial effects of this application are as follows:

[0018] 1. Through the setting of main rod, mounting ring, support plate, foot anti-fall component, mounting base, rotating rod, first bevel gear, second bevel gear, rotating disk and rotating disk limiting component, the relatively high height of the rotating disk makes it convenient for patients with lower limb inconvenience to fix their feet themselves;

[0019] 2. With the setting of the first fixing ring, leg anti-fall belt, male buckle and female buckle, when the leg anti-fall belt is damaged, it is easy to replace the damaged leg anti-fall belt;

[0020] 3. The flashlight fixing device can hold and fix the flashlight, which is beneficial for patients with lower limb disabilities to use wheelchairs at night. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a top view of the mounting ring of this utility model.

[0024] Figure 3 This is a top view of the connection between the support plate, the foot anti-fall component, the first bevel gear, and the baffle of this utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the double-threaded rod, mounting base, rotating rod, and the connection between the first bevel gear and the second bevel gear of this utility model;

[0026] Figure 5 This is a top view of the connection between the leg anti-fall belt, the male buckle, and the female buckle of this utility model.

[0027] Figure 6 This is a bottom view of the rotating disk of this utility model.

[0028] Figure 7 This is a structural schematic diagram of the connection between the mounting base, rotating rod, rotating disk, and rotating disk limiting member of this utility model.

[0029] Figure 8 This is a side view of the flashlight fixing component of this utility model.

[0030] The following are the labeling elements in the diagram: 1. Main rod; 2. Mounting ring; 3. Support plate; 4. Foot anti-fall device; 5. Double threaded rod; 6. Threaded block; 7. Moving bar; 8. Slider; 9. Clamping plate; 10. Mounting seat; 11. Rotating rod; 12. First bevel gear; 13. Second bevel gear; 14. Rotating disk; 15. Rotating disk limiting device; 16. Fixed seat; 17. Slide plate; 18. Spring; 19. Pressure block; 20. Limiting post; 21. First fixing ring; 22. Leg anti-fall strap; 23. Male buckle; 24. Female buckle; 25. Flashlight fixing device; 26. Base plate; 27. Fixing rod; 28. Screw sleeve; 29. ​​Sliding sleeve; 30. Second fixing ring; 31. Movable ring; 32. Screw; 33. Sliding rod; 34. Baffle. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] Please refer to Figure 1-8A lower limb support device for a wheelchair includes a main rod 1, with a mounting component 2 connected to the side of the main rod 1 via a connecting rod. The mounting component 2 includes a mounting ring, a screw, and a nut. A support plate 3 is fixedly mounted on the rear side of the main rod 1. A foot anti-fall component 4 is mounted on the support plate 3 and includes a double-threaded rod 5, a screw block 6, a moving strip 7, a slider 8, and a clamping plate 9. A mounting base 10 is fixedly connected to the side of the support plate 3, and a rotating rod 11 is connected to the top of the mounting base 10 via a first bearing. A first bevel gear 12 is fixedly mounted on the outside of the double-threaded rod 5, and a second bevel gear 13 is fixedly mounted on the outside of the rotating rod 11. A rotating disk 14 is fixedly mounted on the top of the rotating rod 11. Limiting component 15: The rotating disk limiting component 15 is installed on the side of the mounting base 10. The rotating disk limiting component 15 includes a fixed base 16, a sliding plate 17, a spring 18, a pressure block 19, and a limiting post 20. First fixing ring 21: The first fixing ring 21 is fixedly installed on the side of the mounting base 10. Leg anti-fall belt 22: The end of the leg anti-fall belt 22 passes through the first fixing ring 21. Male buckle 23 is fixedly installed at both ends of the leg anti-fall belt 22, and female buckle 24 is fixedly installed at intervals on the side of the leg anti-fall belt 22. Flashlight fixing component 25: The flashlight fixing component 25 is installed on the front side of the mounting base 10. The flashlight fixing component 25 includes a base plate 26, a fixing rod 27, a screw sleeve 28, a sliding sleeve 29, a second fixing ring 30, a movable ring 31, a screw 32, and a sliding rod 33.

[0034] like Figure 1-4 As shown, the connecting rod is fixedly connected between the main rod 1 and a mounting ring on one side. The end of the screw passes through the mounting rings on both sides, and the nut is screwed onto the outside of the screw. A first anti-slip pad is adhered to the side of the mounting ring. Both the first anti-slip pad and the side of the mounting ring have a first through hole corresponding to the screw, which facilitates the screw's passage. The support plate 3 has a receiving cavity inside. The double-threaded rod 5 is connected to the support plate 3 through a second bearing. The outer side of the double-threaded rod 5 has a first thread and a second thread. A screw block 6 on one side is screwed to the first thread, and a screw block 6 on the other side is screwed to the second thread. The moving strip 7 is fixedly installed on the side of the screw block 6. The moving strip 7 is located in the receiving cavity. The slider 8 is fixedly installed between the moving strip 7 and the clamping plate 9. The surface of the support plate 3 has a first sliding opening, which facilitates the sliding of the slider 8. The slider 8 slides in contact with the first sliding opening. The end of the clamping plate 9 slides in contact with the support plate 3. A flexible pad is adhered to the side of the clamping plate 9.

[0035] like Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the bottom of the mounting base 10 has an open structure. A baffle 34 is fixedly installed on the side of the support plate 3. The baffle 34 is located behind the main rod 1. The surface of the support plate 3 has a through hole corresponding to the rotating rod 11, which facilitates the passage of the rotating rod 11. The fixed base 16 is fixedly installed on the side of the mounting base 10. The slide plate 17 is slidably installed inside the fixed base 16. The spring 18 is connected between the slide plate 17 and the fixed base 16. The front side of the fixed base 16 has a second sliding opening, which facilitates the sliding of the pressure block 19. The pressure block 19 is fixedly installed on the front side of the slide plate 17. The pressure block 19 slides in contact with the second sliding opening. The front end of the pressure block 19 is located on the front side of the fixed base 16. The limiting post 20 is fixedly installed on the side of the slide plate 17. The side of the fixed base 16 has a second through hole corresponding to the limiting post 20, which facilitates the passage of the limiting post 20. The side of the rotating disk 14 has a limiting groove at intervals. The limiting grooves are distributed in a circular array. The end of the limiting post 20 passes through the second through hole and extends into the limiting groove.

[0036] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, the first bevel gear 12 meshes with the second bevel gear 13, the height of the leg anti-fall belt 22 is higher than the height of the clamping plate 9, and the male buckle 23 and the female buckle 24 are fastened together. The base plate 26 is fixedly installed on the front side of the mounting base 10. The fixing rod 27 is fixedly installed above the base plate 26. The screw sleeve 28 and the sliding sleeve 29 are fixedly installed between the fixing rod 27 and the second fixing ring 30. The screw 32 is installed on the side of the movable ring 31 through the third bearing. The sliding rod 33 is fixedly installed on the side of the movable ring 31. The sides of the second fixing ring 30 and the movable ring 31 are both bonded with second anti-slip pads. The sides of the second anti-slip pads and the second fixing ring 30 are both provided with first openings corresponding to the screw 32, which facilitates the passage of the screw 32. The end of the screw 32 passes through the first opening and is screwed into the screw sleeve 28. The sides of the second anti-slip pads and the second fixing ring 30 are both provided with second openings corresponding to the sliding rod 33, which facilitates the passage of the sliding rod 33. The end of the sliding rod 33 passes through the second opening and extends into the sliding sleeve 29. The outer wall of the sliding rod 33 slides in contact with the inner wall of the sliding sleeve 29.

[0037] In use: First, remove the screw and nut of mounting part 2, and fit the mounting ring onto the wheelchair disclosed in the prior art patent cited in the background art. Then, install the screw and nut. Subsequently, the patient with lower limb inconvenience places their feet on the support plate 3. Press the pressure block 19 of the rotating disk limiting part 15 with one hand, which will squeeze the spring 18. The end of the limiting post 20 will move out of the limiting groove of the rotating disk 14, releasing the limiting of the rotating disk 14. At this time, the other hand rotates the rotating disk 14. The rotating disk 14 will drive the rotating rod 11 and the second bevel gear 13 to rotate. The second bevel gear 13 can drive the first bevel gear 12 and the double threaded rod 5 of the foot anti-fall part 4 to rotate. The double threaded rod 5 can drive the screw blocks 6, moving bars 7 and sliders 8 on both sides to move closer to each other, so that the clamping plate 9 can clamp and fix the foot. Because the rotating disk 14 The relatively high height makes it convenient for patients with lower limb disabilities to fix their feet themselves. Then, the leg anti-fall strap 22 on the first fixing ring 21 is wrapped around the leg, and the male buckle 23 is fastened with the female buckle 24 in the appropriate position to fix the leg. This can prevent patients with lower limb disabilities from being injured by falling. At the same time, when the leg anti-fall strap 22 is damaged, the male buckle 23 and the female buckle 24 can be separated to easily replace the damaged leg anti-fall strap 22. Turning the screw 32 of the flashlight fixing part 25 can move the movable ring 31 away from the second fixing ring 30. Then, the flashlight is placed between the movable ring 31 and the second fixing ring 30. Turning the screw 32 in the opposite direction can move the movable ring 31 closer to the second fixing ring 30 to clamp and fix the flashlight, which is beneficial for patients with lower limb disabilities to use the wheelchair at night.

[0038] The above description is merely a preferred embodiment of this application and an explanation of the technical principles and solutions employed. Furthermore, the scope of the utility model involved in this application is not limited to the specific combinations of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A lower limb support device for a wheelchair, characterized in that: It includes a main rod (1), and the side of the main rod (1) is connected to an installation component (2) via a connecting rod. The installation component (2) includes an installation ring, a screw, and a nut. Support plate (3), which is fixedly installed on the rear side of the main rod (1); Foot anti-fall component (4), the foot anti-fall component (4) is installed on the support plate (3), the foot anti-fall component (4) includes a double threaded rod (5), a screw block (6), a moving bar (7), a slider (8) and a clamping plate (9); Mounting base (10), which is fixedly connected to the side of the support plate (3), and the top of the mounting base (10) is connected to a rotating rod (11) through a first bearing; The first bevel gear (12) is fixedly installed on the outside of the double threaded rod (5), and the second bevel gear (13) is fixedly installed on the outside of the rotating rod (11); A rotating disk (14) is fixedly mounted on the top of the rotating rod (11); Rotary disk limiting member (15), the rotating disk limiting member (15) is installed on the side of the mounting base (10), the rotating disk limiting member (15) includes a fixed base (16), a sliding plate (17), a spring (18), a pressure block (19) and a limiting post (20); The first fixing ring (21) is fixedly installed on the side of the mounting base (10); A leg anti-fall strap (22), the end of which passes through the first fixing ring (21); The male buckle (23) is fixedly installed at both ends of the leg anti-fall belt (22), and the female buckle (24) is fixedly installed at intervals on the side of the leg anti-fall belt (22); A flashlight fixing component (25) is installed on the front side of the mounting base (10). The flashlight fixing component (25) includes a base plate (26), a fixing rod (27), a screw sleeve (28), a sliding sleeve (29), a second fixing ring (30), a movable ring (31), a screw (32), and a sliding rod (33).

2. The lower limb support device for a wheelchair according to claim 1, characterized in that: The connecting rod is fixedly connected between the main rod (1) and the mounting ring on one side. The end of the screw passes through the mounting rings on both sides. The nut is screwed onto the outside of the screw. A first anti-slip pad is glued to the side of the mounting ring. The first anti-slip pad and the side of the mounting ring are both provided with a first through hole corresponding to the screw.

3. The lower limb support device for a wheelchair according to claim 1, characterized in that: The support plate (3) has an internal cavity. The double threaded rod (5) is connected to the support plate (3) through a second bearing. The double threaded rod (5) has a first thread and a second thread on its outer side. The screw block (6) on one side is screwed to the first thread, and the screw block (6) on the other side is screwed to the second thread. The moving strip (7) is fixedly installed on the side of the screw block (6). The moving strip (7) is located in the cavity. The slider (8) is fixedly installed between the moving strip (7) and the clamping plate (9). The surface of the support plate (3) has a first sliding opening. The slider (8) slides in contact with the first sliding opening. The end of the clamping plate (9) slides in contact with the support plate (3). A flexible pad is adhered to the side of the clamping plate (9).

4. The lower limb support device for a wheelchair according to claim 1, characterized in that: The bottom of the mounting base (10) is an open structure. A baffle (34) is fixedly installed on the side of the support plate (3). The surface of the support plate (3) is provided with a through hole corresponding to the rotating rod (11). The rotating rod (11) passes through the through hole.

5. A lower limb support device for a wheelchair according to claim 1, characterized in that: The fixed seat (16) is fixedly installed on the side of the mounting seat (10), the sliding plate (17) is slidably installed inside the fixed seat (16), the spring (18) is connected between the sliding plate (17) and the fixed seat (16), the front side of the fixed seat (16) is provided with a second sliding opening, the pressure block (19) is fixedly installed on the front side of the sliding plate (17), the pressure block (19) slides in contact with the second sliding opening, the front end of the pressure block (19) is located on the front side of the fixed seat (16), the limiting post (20) is fixedly installed on the side of the sliding plate (17), the side of the fixed seat (16) is provided with a second through hole corresponding to the limiting post (20), the side of the rotating disk (14) is provided with a limiting groove at intervals, and the end of the limiting post (20) passes through the second through hole and extends into the limiting groove.

6. A lower limb support device for a wheelchair according to claim 1, characterized in that: The first bevel gear (12) meshes with the second bevel gear (13), the height of the leg anti-fall belt (22) is higher than the height of the clamping plate (9), and the male buckle (23) is fastened to the female buckle (24).

7. A lower limb support device for a wheelchair according to claim 1, characterized in that: The base plate (26) is fixedly installed on the front side of the mounting base (10). The fixing rod (27) is fixedly installed above the base plate (26). The screw sleeve (28) and the sliding sleeve (29) are fixedly installed between the fixing rod (27) and the second fixing ring (30). The screw (32) is installed on the side of the movable ring (31) through the third bearing. The sliding rod (33) is fixedly installed on the side of the movable ring (31). The sides of the second fixing ring (30) and the movable ring (31) are both bonded with a second anti-slip pad. The sides of the second anti-slip pad and the second fixing ring (30) are both provided with a first opening corresponding to the screw (32). The end of the screw (32) passes through the first opening and is screwed into the screw sleeve (28). The sides of the second anti-slip pad and the second fixing ring (30) are both provided with a second opening corresponding to the sliding rod (33). The end of the sliding rod (33) passes through the second opening and extends into the sliding sleeve (29).

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