CN110840665B - A multifunctional wheelchair for fracture patients - Google Patents

Abstract

The invention discloses a multifunctional wheelchair for fracture patients, which comprises a chair back, a seat plate, a front wheel supporting rod, a walking stick and a leg plate, wherein the walking stick comprises a high-position rod and a low-position rod which are connected in a rotating way, a fixing device is arranged at the position where the high-position rod and the low-position rod are connected in a rotating way, when the walking stick is positioned at a first station, the fixing device fixes the high-position rod and the low-position rod in the same straight line, a first positioning rod is vertically upwards arranged at two sides of the seat plate and at one end far away from the chair back, a positioning device is arranged at the upper end of the first positioning rod, a clamping plate is arranged at the upper end surface of the seat plate and at two sides of the chair back, a U-shaped clamping groove is formed between the clamping plate and the chair back, the front wheel supporting rod is provided with a positioning sleeve through a second positioning rod, when the walking stick is positioned at a second station, the high-position rod is vertically fixed at two sides of the seat plate through the positioning device and the U-shaped clamping groove to be used as handrails, the low-position rod is inserted into the sleeve to be fixed, and the leg plate for placing the legs of a patient is arranged at the lower end of the seat plate.

Description

A multifunctional wheelchair for fracture patients

Technical Field

The invention relates to a wheelchair, in particular to a multifunctional wheelchair for fracture patients.

Background technique

Wheelchairs are important rehabilitation tools for patients who cannot walk completely, especially those with leg fractures. Wheelchairs are used particularly frequently. At the same time, patients with leg fractures usually also need crutches, which they can use to walk upright when appropriate. However, it is inconvenient for patients to carry crutches while sitting in a wheelchair, and the cost of purchasing both a wheelchair and crutches is relatively high, so some patients will only buy one. In addition, patients with leg fractures need to extend their legs forward when sitting in a wheelchair to facilitate recovery. Currently, wheelchairs on the market do not have devices that can support the extension of the legs, which is not conducive to the patient's recovery.

Summary of the invention

The technical problem to be solved by the present invention is to propose a multifunctional wheelchair for fracture patients in view of the shortcomings of the above prior art, comprising a chair back, a seat plate, a front wheel support rod, a front wheel, a rear wheel support rod, a rear wheel, a crutch, and a leg plate, wherein the crutch comprises a high rod and a low rod rotatably connected to each other, and a fixing device is provided at the position where the high rod and the low rod are rotatably connected, and when the crutch is in the first working position, the fixing device fixes the high rod and the low rod in the same straight line;

A first positioning rod is vertically upwardly provided on both sides of the seat plate and at one end away from the chair back, a positioning device is provided at the upper end of the first positioning rod, a clamping plate is provided on the upper end surface of the seat plate and at both sides of the chair back, a U-shaped clamping groove is formed between the clamping plate and the chair back, a second positioning rod is horizontally provided on the front wheel support rod in a direction away from the rear wheel, a positioning sleeve is provided on the second positioning rod, when the crutch is in the second working position, the high-position rod and the low-position rod are perpendicular to each other, and the high-position rod is fixed to both sides of the seat plate through the positioning device and the U-shaped clamping groove for use as an armrest, and the low-position rod is inserted into the sleeve for fixation;

Two leg boards for placing the patient's left leg or right leg are symmetrically arranged at the lower end of the seat board and at the end away from the chair back;

In the present technical scheme, the crutch is divided into a high rod and a low rod which are rotatably connected to each other, and a fixing device is arranged at the rotating connection to ensure that the high rod and the low rod can be fixed in a straight line to assist walking, and can also be folded into 90 degrees for convenient fixing on the wheelchair. The high rod can be fixed on both sides of the seat board for use as an armrest through the setting of the positioning device and the U-shaped slot. This structure eliminates the armrests of the existing wheelchair and uses the crutch as a detachable armrest on the wheelchair. On the one hand, it is convenient for patients to carry crutches when using the wheelchair. On the other hand, it saves costs and reduces the purchase price for patients. Patients only need to purchase a wheelchair with crutches. In addition, a leg board is arranged for the convenience of patients to place their legs and extend their legs forward, which helps recovery.

The technical solution further defined in the present invention is:

The aforementioned fixing device comprises a threaded boss and a sliding sleeve that can be slidably matched with the high-position rod and the low-position rod, the threaded boss is arranged on the low-position rod and close to the rotation connection, the sliding sleeve is sleeved on the low-position rod above the threaded boss and can slide onto the high-position rod, and a threaded hole that can be matched with the threaded boss is opened at one end of the sliding sleeve close to the threaded boss, when the crutch is in the first working position, the threaded boss is threadedly matched with the sliding sleeve, and when the crutch is in the second working position, the sliding sleeve is separated from the threaded boss and slides onto the high-position rod;

The aforementioned positioning device includes a support platform arranged on the first positioning rod and having a semicircular shape, one end of the support platform is rotatably connected to a clamping platform that can cooperate with the support platform to form a full circle, and a locking platform is provided at one end of the support platform away from the rotating connection, and a locking pin that can fix the clamping platform is threadedly matched on the locking platform, and the high-position rod can be fixed by the cooperation of the clamping platform and the locking pin;

A rotating boss is provided at the lower end of the seat plate and at the end away from the chair back, and the leg plate is rotatably connected to the rotating boss. A semicircular locking platform is provided at the lower end of the seat plate and at the side of the leg plate, and the rotation connection position of the rotating boss and the leg plate is located at the center of the semicircular locking platform. An arc groove is provided on the side of the semicircular locking platform away from the leg plate along the circumferential direction, and a plurality of limiting holes connected to the arc groove are evenly provided on the other side along the circumferential direction. A stepped shaft is matched in the arc groove and the limiting hole, and the stepped shaft is sequentially provided with a first shaft, a second shaft and a third shaft along the axial direction, wherein The first shaft and the second shaft are respectively inserted into the arc groove and the limiting hole, a rotation limiting hole matching with the third shaft is provided on the side of the leg plate close to the semicircular locking platform, a countersunk hole is provided at the upper end of the leg plate located at the rotation limiting hole, a spring is sleeved between the third shaft located at the bottom of the countersunk hole and the second shaft, when an external force presses the stepped shaft in a direction close to the leg plate, the second shaft can be disengaged from the limiting hole, so that the leg plate can rotate freely around the rotating boss, and when the external force is released, the second shaft is inserted into the limiting hole under the action of the spring, so that the leg plate is fixed and cannot rotate;

The aforementioned leg board is provided with a sponge layer to improve the patient's comfort;

The beneficial effects of the present invention are as follows: the crutch is divided into a high-position rod and a low-position rod that are rotatably connected to each other, and a fixing device is arranged at the rotation connection to ensure that the high-position rod and the low-position rod can be fixed in a straight line to assist walking, and can also be folded 90 degrees to be conveniently fixed on the wheelchair. The high-position rod can be fixed on both sides of the seat plate as an armrest through the arrangement of the positioning device and the U-shaped slot. This structure eliminates the armrests of the existing wheelchair and uses the crutch as a detachable armrest on the wheelchair. On the one hand, it is convenient for patients to carry the crutch when using the wheelchair, and on the other hand, it saves costs and reduces the purchase price for patients. Patients only need to buy a wheelchair with the crutch. In addition, a leg board is arranged to facilitate patients to place their legs and extend their legs forward, which is helpful for recovery.

The cooperation between the rotating boss and the leg board ensures that the leg board can rotate around the rotating boss, which is convenient for the patient to adjust the angle of the leg board, or rotate the leg board to the bottom of the seat board for storage. The structure of the cooperation between the semicircular locking platform and the stepped shaft ensures that the leg board can be fixed after being adjusted to a suitable angle. In addition, a sponge layer is provided on the leg board to improve the comfort of the patient.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention;

Fig. 2 is a rear view of the present invention;

Fig. 3 is a cross-sectional view taken along line B-B in Fig. 2;

Fig. 4 is a cross-sectional view taken along line D-D in Fig. 2;

FIG5 is a partial enlarged view of I in FIG1;

FIG6 is a partial enlarged view of II in FIG3;

FIG7 is a partial enlarged view of III in FIG4;

FIG8 is a schematic structural diagram of the crutch in the present invention when it is in the first working position;

Figures 9 and 10 are schematic diagrams of the structure of the semicircular locking platform in the present invention;

Wherein: 1-chair back, 2-seat plate, 3-front wheel support rod, 4-front wheel, 5-rear wheel support rod, 6-rear wheel, 7-crutch, 8-leg plate, 9-high rod, 10-low rod, 11-first positioning rod, 12-clamp plate, 13-U-shaped slot, 14-second positioning rod, 15-positioning sleeve, 16-threaded boss, 17-sliding sleeve, 18-threaded hole, 19-support platform, 20-clamp platform, 21-locking pin, 22-rotating boss, 23-semicircular locking platform, 24-arc groove, 25-limiting hole, 26-step shaft, 27-first shaft, 28-second shaft, 29-third shaft, 30-rotation limiting hole, 31-countersunk hole, 32-spring, 33-sponge layer.

Detailed ways

The present invention is further described in detail below, wherein the rotation connection involved is a prior art solution, which is achieved by the cooperation of a pin shaft and a hole.

Example 1

The present embodiment provides a multifunctional wheelchair for fracture patients, comprising a chair back 1, a seat plate 2, a front wheel support rod 3, a front wheel 4, a rear wheel support rod 5, a rear wheel 6, a crutch 7, and a leg plate 8. The crutch 7 comprises a high rod 9 and a low rod 10 that are rotatably connected to each other, and a fixing device is provided at the position where the high rod 9 and the low rod 10 are rotatably connected. When the crutch 7 is in the first working position, the fixing device fixes the high rod 9 and the low rod 10 in the same straight line.

A first positioning rod 11 is vertically upwardly provided on both sides of the seat plate 2 and at one end away from the chair back 1, a positioning device is provided at the upper end of the first positioning rod 11, a clamping plate 12 is provided on the upper end surface of the seat plate 2 and on both sides of the chair back 1, a U-shaped clamping groove 13 is formed between the clamping plate 12 and the chair back 1, a second positioning rod 14 is horizontally provided on the front wheel support rod 3 in the direction away from the rear wheel 6, and a positioning sleeve 15 is provided on the second positioning rod 14. When the crutch 7 is in the second working position, the high rod 9 and the low rod 10 are perpendicular to each other, and the high rod 9 is fixed to both sides of the seat plate 2 by the positioning device and the U-shaped clamping groove 13 for use as an armrest, and the low rod 10 is inserted into the sleeve 15 for fixation;

Two leg boards 8 for placing the left or right leg of the patient are symmetrically arranged at the lower end of the seat board 2 and at the end away from the chair back 1;

In the present technical scheme, the crutch is divided into a high rod and a low rod which are rotatably connected to each other, and a fixing device is arranged at the rotating connection to ensure that the high rod and the low rod can be fixed in a straight line to assist walking, and can also be folded into 90 degrees for convenient fixing on the wheelchair. The high rod can be fixed on both sides of the seat board for use as an armrest through the setting of the positioning device and the U-shaped slot. This structure eliminates the armrests of the existing wheelchair and uses the crutch as a detachable armrest on the wheelchair. On the one hand, it is convenient for patients to carry crutches when using the wheelchair. On the other hand, it saves costs and reduces the purchase price for patients. Patients only need to purchase a wheelchair with crutches. In addition, a leg board is arranged for the convenience of patients to place their legs and extend their legs forward, which helps recovery.

The fixing device includes a threaded boss 16 and a sliding sleeve 17 that can slide with the high rod 9 and the low rod 10. The threaded boss 16 is arranged on the low rod 10 and is close to the rotating connection. The sliding sleeve 17 is sleeved on the low rod 10 above the threaded boss 16 and can slide onto the high rod 9. A threaded hole 18 that can cooperate with the threaded boss 16 is formed at one end of the sliding sleeve 17 close to the threaded boss 16. When the crutch 7 is in the first working position, the threaded boss 16 is threadedly engaged with the sliding sleeve 17. When the crutch 7 is in the second working position, the sliding sleeve 17 is disengaged from the threaded boss 16 and slides onto the high rod 9.

The positioning device includes a support platform 19 which is arranged on the first positioning rod 11 and is semicircular in shape. One end of the support platform 19 is rotatably connected to a clamping platform 20 which can cooperate with the support platform 19 to form a full circle. A locking platform is provided at the end of the support platform 19 away from the rotating connection. The locking platform is threadedly engaged with a locking pin 21 which can fix the clamping platform 20. The high-position rod 9 can be fixed by the cooperation of the clamping platform 20 and the locking pin 21.

A rotating boss 22 is provided at the lower end of the seat plate 2 and at the end away from the chair back 1, and the leg plate 8 is rotatably connected to the rotating boss 22. A semicircular locking platform 23 is provided at the lower end of the seat plate 2 and at the side of the leg plate 8, and the rotation connection position of the rotating boss 22 and the leg plate 8 is located at the center of the semicircular locking platform 23. An arc groove 24 is provided on the side of the semicircular locking platform 23 away from the leg plate 8 along the circumferential direction, and 10 limiting holes 25 connected to the arc groove 24 are evenly provided on the other side along the circumferential direction. A stepped shaft 26 is provided in the arc groove 24 and the limiting holes 25. The stepped shaft 26 is provided with a first shaft 27, a second shaft 28 and a third shaft 29 in sequence along the axial direction, wherein the first shaft 27 and the second shaft 28 are respectively penetrated in the arc groove 24 and the third shaft 29. In the limiting hole 25, a rotation limiting hole 30 cooperating with the third shaft 29 is provided on the side of the leg plate 8 close to the semicircular locking platform 23, a countersunk hole 31 is opened at the upper end of the leg plate 8 located at the rotation limiting hole 30, and a spring 32 is sleeved between the third shaft 29 located at the bottom of the countersunk hole 31 and the second shaft 28. When the external force presses the stepped shaft 26 in the direction close to the leg plate 8, the second shaft 28 can be disengaged from the limiting hole 25, so that the leg plate 8 can rotate freely around the rotating boss 22 as the center. When the external force is released, the second shaft 28 is inserted into the limiting hole 25 under the action of the spring 32, so that the leg plate 8 is fixed and cannot rotate. This structure realizes the angle adjustment function of the leg plate and also ensures that the leg plate can be stored under the seat plate when not in use.

A sponge layer 33 is provided on the leg plate 8 to improve the comfort of the patient.

The working process of this embodiment:

Operation 1: When using, the patient sits in the wheelchair. When the angle of the leg board needs to be adjusted, hold the leg board with one hand and press the stepped shaft on the side with the other hand, then rotate the leg board to a suitable angle and release the stepped shaft;

Operation 2: When you need to take out a crutch to walk upright, loosen the locking pin on one side, flip the card table to the inner arc surface facing up, and then flip the high-position rod to the vertical direction. At this time, the sliding sleeve will slide down along the high-position rod to the position where the high-position rod and the low-position rod are rotatably connected, and then the sliding sleeve is threadedly connected to the threaded boss;

Operation 3: When you need to take out another crutch to walk upright, repeat operation 2 to take out the crutch on the other side;

Operation 4: When the crutch needs to be fixed to the wheelchair, first insert the second rod into the positioning sleeve, then unscrew the sliding sleeve from the threaded boss and slide it upward to the high rod, then rotate the high rod 90° toward the back of the chair, and ensure that the high rod is placed in the support and U-shaped slot, then flip the support so that the inner arc surface faces downward, and lock the locking pin.

The above embodiments are only for illustrating the technical idea of the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims (2)

1. The utility model provides a multi-functional wheelchair for fracture patient, includes back of the chair (1), seat board (2), front wheel bracing piece (3), front wheel (4), rear wheel bracing piece (5), rear wheel (6), walking stick (7), leg board (8), its characterized in that: the crutch (7) comprises a high-level rod (9) and a low-level rod (10) which are connected with each other in a rotating way, and a fixing device is arranged at the position where the high-level rod (9) and the low-level rod (10) are connected with each other in a rotating way, and when the crutch (7) is positioned at a first station, the fixing device fixes the high-level rod (9) and the low-level rod (10) in the same straight line;

The two sides of the seat plate (2) and one end, far away from the chair back (1), of the seat plate are vertically upwards provided with first positioning rods (11), the upper end of each first positioning rod (11) is provided with a positioning device, clamping plates (12) are arranged on the upper end face of the seat plate (2) and two sides of the chair back (1), a U-shaped clamping groove (13) is formed between each clamping plate (12) and the chair back (1), the front wheel supporting rods (3) are horizontally provided with second positioning rods (14) in the direction far away from the rear wheels (6), the second positioning rods (14) are provided with positioning sleeves (15), when the walking stick (7) is in a second station, the high positioning rods (9) and the low positioning rods (10) are mutually perpendicular, the high positioning rods (9) are fixed on the two sides of the seat plate (2) through the positioning devices and the U-shaped clamping grooves (13) to serve as handrails, and the low positioning rods (10) are inserted into the sleeves (15) to be fixed;

two leg plates (8) for placing left legs or right legs of a patient are symmetrically arranged at the lower end of the seat plate (2) and at one end far away from the chair back (1);

The fixing device comprises a threaded boss (16) and a sliding sleeve (17) which can be in sliding fit with the high-position rod (9) and the low-position rod (10), the threaded boss (16) is arranged at the position of the low-position rod (10) close to the rotating joint, the sliding sleeve (17) is sleeved on the lower-position rod (10) above the threaded boss (16) and can slide onto the high-position rod (9), a threaded hole (18) which can be matched with the threaded boss (16) is formed in one end, close to the threaded boss (16), of the sliding sleeve (17), when the crutch (7) is in a first station, the threaded boss (16) is in threaded fit with the sliding sleeve (17), and when the crutch (7) is in a second station, the sliding sleeve (17) is separated from the threaded boss (16) and slides onto the high-position rod (9);

The positioning device comprises a supporting table (19) which is arranged on a first positioning rod (11) and is semicircular in shape, one end of the supporting table (19) is rotatably connected with a clamping table (20) which can be matched with the supporting table (19) to form a whole circle, one end of the supporting table (19) far away from a rotating joint is provided with a locking table, a lock pin (21) which can be used for fixing the clamping table (20) is in threaded fit on the locking table, and the high-position rod (9) can be fixed through the matching of the clamping table (20) and the lock pin (21);

The lower end of the seat plate (2) and one end far away from the chair back (1) are provided with a rotating boss (22), the leg plate (8) is rotationally connected with the rotating boss (22), a semicircular lock table (23) is arranged at the side face of the lower end of the seat plate (2) and located on the leg plate (8), the rotating connecting position of the rotating boss (22) and the leg plate (8) is located at the center of the semicircular lock table (23), one side of the semicircular lock table (23) far away from the leg plate (8) is provided with an arc groove (24) along the circumferential direction, the other side is uniformly provided with a plurality of limiting holes (25) communicated with the arc groove (24) along the circumferential direction, a stepped shaft (26) is arranged in the arc groove (24) and the limiting holes (25) in a matched mode, a first shaft (27), a second shaft (28) and a third shaft (29) are sequentially arranged along the axial direction, the first shaft (27) and the second shaft (28) are respectively arranged in the arc groove (24) and the limiting holes (25) in a penetrating mode, one side of the leg plate (8) close to the semicircular lock table (23) is provided with a limiting hole (30) which is provided with a limiting hole (30), the third shaft (29) is arranged at the bottom of the counter bore (31) and sleeved with the spring (32) between the second shaft (28), when the external force presses the stepped shaft (26) towards the direction close to the leg plate (8), the second shaft (28) can be separated from the limiting hole (25), so that the leg plate (8) can freely rotate by taking the rotating boss (22) as the center, and when the external force is released, the second shaft (28) is inserted into the limiting hole (25) under the action of the spring (32), so that the leg plate (8) is fixed and cannot rotate.

2. The wheelchair for a patient with a multi-functional fracture according to claim 1, wherein: a sponge layer (33) is arranged on the leg plate (8).