CN211187874U

CN211187874U - Leg fixing device of wheelchair

Info

Publication number: CN211187874U
Application number: CN201922188083.2U
Authority: CN
Inventors: 廖长艳
Original assignee: Taizhou Polytechnic College
Current assignee: Taizhou Polytechnic College
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-08-07
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to the technical field of medical supplies, in particular to a leg fixing device of a wheelchair, which comprises two backup plates, wherein the left sides of the backup plates are bolted with first articulated elements, and the insides of the first articulated elements are articulated with connecting rods; the utility model discloses a set up the backup plate, first articulated elements, the connecting rod, the footboard, the second articulated elements, the bracing piece, stop gear, the fixed block, a bearing, the threaded rod, slide mechanism, the thread piece, the third articulated elements, first belt pulley, the connecting plate, including a motor, an end cap, a controller, and a cover plate, second belt pulley and belt, the inconvenient user of shank fixing device who has solved current wheelchair adjusts, the user takes the wheelchair for a long time, can make user shank circulation of blood not smooth, thereby lead to the special difficult problem of user shank, this fixing device possesses the advantage that can the electrical control shank fixing device angle, can effectively guarantee that user shank circulation of blood is smooth and easy, thereby user's travelling comfort has been improved.

Description

Leg fixing device of wheelchair

Technical Field

The utility model relates to the technical field of medical supplies, in particular to a leg fixing device of a wheelchair.

Background

The wheelchair is a chair provided with wheels and capable of helping to replace walking, and is divided into electric and manual folding wheelchairs, which are important moving tools for wounded persons, patients, disabled persons to live at home, turnover transportation, treatment and outing activities.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shank fixing device of wheelchair possesses the advantage that can electrically regulated shank fixing device angle, and the inconvenient user of shank fixing device who has solved current wheelchair adjusts, and the user takes the wheelchair for a long time, can make user shank circulation of blood not smooth, leads to the special difficult of user's shank to influence the problem of time.

In order to achieve the above object, the utility model provides a following technical scheme: a leg fixing device of a wheelchair comprises two backup plates, wherein a first articulated element is bolted on the left side of each backup plate, a connecting rod is hinged inside each first articulated element, a pedal is welded at the bottom of each connecting rod, a second articulated element is welded on the right side of each connecting rod, a supporting rod is hinged inside each second articulated element, limiting mechanisms are arranged at the top and the bottom of the right side of each backup plate respectively, two fixed blocks are welded on the left side of each backup plate, a bearing is sleeved inside each fixed block, a threaded rod is sleeved inside each bearing, a threaded block is connected to the surface of each threaded rod in a threaded manner, a sliding mechanism is arranged on the right side of each threaded block, a third articulated piece is welded on the left side of each threaded block, the inside of each third articulated piece is articulated with the corresponding supporting rod, a first belt pulley is sleeved at the bottom of each threaded rod, the right side bolt of connecting plate has the motor, the output of motor has cup jointed the second belt pulley, the surface of second belt pulley has cup jointed the belt, the second belt pulley passes through the belt and is connected with two first belt pulley rotations.

Preferably, stop gear includes stopper and second grip block, the left side and the backup plate welding of stopper, the right side welding of stopper has first grip block, first spout has been seted up to the inside of stopper, the left side welding of second grip block has first slider, the inner wall and the first slider sliding connection of first spout, the front threaded connection of second grip block has adjusting bolt, the thread groove with adjusting bolt looks adaptation is all seted up to the inside of first grip block and second grip block.

Preferably, the sliding mechanism comprises a second sliding block, the left side of the second sliding block is bolted to the threaded block, a second sliding groove matched with the second sliding block is formed in the backup plate, and the inner wall of the second sliding groove is connected with the second sliding block in a sliding mode.

Preferably, a back cushion is arranged between the two connecting rods, and two sides of the back cushion are bolted with the two connecting rods respectively.

Preferably, be provided with the dead lever between two backup plates, the both ends of dead lever weld with two backup plates respectively, the top welding of footboard has the stiffener, the one end and the connecting rod welding of footboard are kept away from to the stiffener.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up the backup plate, first articulated elements, the connecting rod, the footboard, the second articulated elements, the bracing piece, stop gear, the fixed block, a bearing, the threaded rod, slide mechanism, the thread piece, the third articulated elements, first belt pulley, the connecting plate, including a motor, an end cap, a controller, and a cover plate, second belt pulley and belt, the inconvenient user of shank fixing device who has solved current wheelchair adjusts, the user takes the wheelchair for a long time, can make user shank circulation of blood not smooth, thereby lead to the special difficult problem of user shank, this fixing device possesses the advantage that can the electrical control shank fixing device angle, can effectively guarantee that user shank circulation of blood is smooth and easy, thereby user's travelling comfort has been improved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the structure of the present invention;

fig. 3 is a perspective view of the local structure of the present invention.

In the figure: 1. a backup plate; 2. a first hinge member; 3. a connecting rod; 4. a pedal; 5. a second hinge member; 6. a support bar; 7. a limiting mechanism; 701. a limiting block; 702. a first clamping block; 703. a first chute; 704. a second clamping block; 705. a first slider; 706. adjusting the bolt; 8. a fixed block; 9. a bearing; 10. a threaded rod; 11. a sliding mechanism; 111. a second chute; 112. a second slider; 12. a thread block; 13. a third hinge member; 14. a first pulley; 15. a connecting plate; 16. a motor; 17. a second pulley; 18. a belt; 19. back cushion; 20. fixing the rod; 21. and a reinforcing rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a leg fixing device of a wheelchair comprises two backup plates 1, a first hinge element 2 is bolted on the left side of the backup plate 1, a connecting rod 3 is hinged inside the first hinge element 2, a pedal 4 is welded on the bottom of the connecting rod 3, a second hinge element 5 is welded on the right side of the connecting rod 3, a support rod 6 is hinged inside the second hinge element 5, a limiting mechanism 7 is arranged on the top and the bottom of the right side of the backup plate 1, two fixing blocks 8 are welded on the left side of the backup plate 1, a bearing 9 is sleeved inside the fixing blocks 8, a threaded rod 10 is sleeved inside the bearing 9, a threaded block 12 is connected on the surface of the threaded rod 10 in a threaded manner, a sliding mechanism 11 is arranged on the right side of the threaded block 12, a third hinge element 13 is welded on the left side of the threaded block 12, the inside of the third hinge element 13 is hinged with, the leg fixing device of the wheelchair solves the problems that the leg fixing device of the existing wheelchair is inconvenient for a user to adjust, the blood circulation of the leg of the user is not smooth for a long time when the user takes the wheelchair, and the leg of the user is difficult to cause the special difficulty of the leg of the user, and has the advantage that the angle of the leg fixing device can be adjusted electrically, can effectively ensure the smooth blood circulation of the legs of the user, thereby improving the comfort of the user.

In this embodiment, stop gear 7 includes stopper 701 and second grip block 704, the left side and the backup plate 1 welding of stopper 701, the right side welding of stopper 701 has first grip block 702, first spout 703 has been seted up to stopper 701's inside, the left side welding of second grip block 704 has first slider 705, the inner wall and the first slider 705 sliding connection of first spout 703, the front threaded connection of second grip block 704 has adjusting bolt 706, the thread groove with adjusting bolt 706 looks adaptation is all seted up with the inside of second grip block 704 to first grip block 702, through setting up stop gear 7, can effectively help the user to install this fixing device with the wheelchair on.

In this embodiment, the sliding mechanism 11 includes the second slider 112, the left side of the second slider 112 is bolted to the screw block 12, the inside of the backup plate 1 is provided with the second chute 111 matched with the second slider 112, the inner wall of the second chute 111 is connected with the second slider 112 in a sliding manner, and through the arrangement of the sliding mechanism 11, smooth movement of the screw block 12 can be effectively ensured.

In this embodiment, be provided with cushion 19 between two connecting rods 3, the both sides of cushion 19 are bolted with two connecting rods 3 respectively, through setting up cushion 19, can effectively support user's shank to the travelling comfort has been improved.

In this embodiment, be provided with dead lever 20 between two backup plates 1, the both ends of dead lever 20 weld with two backup plates 1 respectively, and the top welding of footboard 4 has stiffener 21, and the one end that footboard 4 was kept away from to stiffener 21 welds with connecting rod 3, through setting up stiffener 21, can effectively strengthen the fastness between connecting rod 3 and the footboard 4.

The working principle is as follows: the user is at first with this fixing device installation and wheelchair on, then block the supporting leg of wheelchair through first grip block 702 and second grip block 704, later twist adjusting bolt 706, make adjusting bolt 706 drive second grip block 704 through first spout 703 and first slider 705 and carry out spacing fixed to the supporting leg, later the user can start motor 16, make motor 16 drive second belt pulley 17 and rotate, then second belt pulley 17 drives first belt pulley 14 through the cooperation of belt 18 and rotates, thereby first belt pulley 14 drives threaded rod 10 through the cooperation of bearing 9 and rotates, threaded rod 10 drives threaded block 12 motion afterwards, later threaded block 12 passes through third hinge joint piece 13, the cooperation of first belt pulley 14 and bracing piece 6 drives connecting rod 3 and carries out angle modulation, thereby user's travelling comfort has been improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A leg fixing device of a wheelchair comprises two backup plates (1), and is characterized in that: the left side of the backup plate (1) is bolted with a first articulated element (2), the inside of the first articulated element (2) is articulated with a connecting rod (3), the bottom of the connecting rod (3) is welded with a pedal (4), the right side of the connecting rod (3) is welded with a second articulated element (5), the inside of the second articulated element (5) is articulated with a supporting rod (6), the top and the bottom of the right side of the backup plate (1) are both provided with a limiting mechanism (7), the left side of the backup plate (1) is welded with two fixed blocks (8), the inside of each fixed block (8) is sleeved with a bearing (9), the inside of each bearing (9) is sleeved with a threaded rod (10), the surface of each threaded rod (10) is in threaded connection with a threaded block (12), the right side of each threaded block (12) is provided with a sliding mechanism (11), the left side of each threaded block (12, the inside of third articulated piece (13) is articulated with bracing piece (6), first belt pulley (14) have been cup jointed to the bottom of threaded rod (10), and welding has connecting plate (15) between two backup plates (1), the right side bolt joint of connecting plate (15) has motor (16), second belt pulley (17) have been cup jointed to the output of motor (16), belt (18) have been cup jointed on the surface of second belt pulley (17), second belt pulley (17) are connected with two first belt pulley (14) rotations through belt (18).

2. A leg attachment for a wheelchair as claimed in claim 1, wherein: stop gear (7) include stopper (701) and second grip block (704), the left side and backup plate (1) welding of stopper (701), the right side welding of stopper (701) has first grip block (702), first spout (703) have been seted up to the inside of stopper (701), the left side welding of second grip block (704) has first slider (705), the inner wall and the first slider (705) sliding connection of first spout (703), the front threaded connection of second grip block (704) has adjusting bolt (706), the thread groove with adjusting bolt (706) looks adaptation has all been seted up to the inside of first grip block (702) and second grip block (704).

3. A leg attachment for a wheelchair as claimed in claim 1, wherein: the sliding mechanism (11) comprises a second sliding block (112), the left side of the second sliding block (112) is bolted with the threaded block (12), a second sliding groove (111) matched with the second sliding block (112) is formed in the backup plate (1), and the inner wall of the second sliding groove (111) is connected with the second sliding block (112) in a sliding mode.

4. A leg attachment for a wheelchair as claimed in claim 1, wherein: a back cushion (19) is arranged between the two connecting rods (3), and two sides of the back cushion (19) are respectively bolted with the two connecting rods (3).

5. A leg attachment for a wheelchair as claimed in claim 1, wherein: be provided with dead lever (20) between two backup plates (1), the both ends of dead lever (20) weld with two backup plates (1) respectively, the top welding of footboard (4) has reinforcing bar (21), the one end and the connecting rod (3) welding of footboard (4) are kept away from in reinforcing bar (21).