CN212015985U - Adjustable supporting structure for lower limb flexion and extension position of wheelchair - Google Patents
Adjustable supporting structure for lower limb flexion and extension position of wheelchair Download PDFInfo
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- CN212015985U CN212015985U CN201922453214.5U CN201922453214U CN212015985U CN 212015985 U CN212015985 U CN 212015985U CN 201922453214 U CN201922453214 U CN 201922453214U CN 212015985 U CN212015985 U CN 212015985U
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Abstract
The utility model discloses an adjustable bearing structure of position is bent and stretched to low limbs for wheelchair, including the fixed column, bend and stretch adjustable piece, the connecting piece, first bracing piece, low limbs brace table and second bracing piece, fixed column top welded connection spare, the connecting piece is movable articulated with first bracing piece, be equipped with low limbs brace table in the middle of the first bracing piece, the one end overcoat second bracing piece of connecting piece is kept away from to first bracing piece, the end of second bracing piece is the step board, wherein bend and stretch adjustable piece and include the casing, the handle, the lead screw, worm wheel nut and worm, the casing welding is at the fixed column, the lead screw is connected with first bracing piece, it rotates to drive the worm through the handle, the worm rotates and drives worm wheel nut rotary motion, the lead screw up-and-down motion, make first bracing piece stretch straight position or bend knee position bearing structure around. The structure utilizes the prior screw drive principle to operate the lifting support rod in a labor-saving way, realizes the support of the lower limb in the straightening position and the knee bending position, can be used as a normal wheelchair, and is suitable for patients with lower limb fracture.
Description
Technical Field
The utility model relates to a medical treatment removes appurtenance technical field, especially relates to a wheelchair is with low limbs position adjustable bearing structure that bends and stretch.
Background
The wheelchair is an extremely important tool for riding instead of walk, which is suitable for the disabled with injured limbs and the disabled, and the wheelchair is various in types and even the electric wheelchair and the intelligent wheelchair are on the market after technical updating. The common wheelchair on the market generally comprises a wheelchair frame, wheels, a brake device, a seat rest and a pedal part, but is not suitable for patients with lower limb fracture.
In the first patent CN201520205742, a wheelchair for lower limb fracture is disclosed, in which rail sliding grooves are provided on both sides of the bottom of the original wheelchair seat, sliding plates are provided in the rail sliding grooves to slide left and right along the rail sliding grooves, and a sliding plate capable of sliding outward is provided inside the sliding plate. The wheelchair for the patient with the lower limb fracture (CN201520095854.2) comprises a base, wherein a seat is fixed on the base, a sliding rail is arranged on the base in front of the seat, a supporting rod is fixed on the sliding rail, a lower limb fixing plate is fixed at the top of the supporting rod, and rollers are arranged below the base. Although a stable lower limb supporting seat can be provided, the occupied space is large, and the moving operation such as turning is not easy to happen.
In clinic, certain patients with lower limb fracture or injury have long rest time after plastering, and usually need to be transferred or moved by virtue of a wheelchair, but on one hand, the patients need to straighten and lift the injured legs to promote blood circulation and relieve the situation of leg and foot swelling after operation; on the other hand, the wheelchair can be used for flexion and extension training at the later stage of the traumatic injury and the removal of the plaster, or can be used as a common wheelchair at the knee bending position after the traumatic injury and the removal recovery. In addition, the lower limbs are easy to shake in the moving process of the wheelchair, secondary strain injury of the injured parts is easy to cause, and the safety is not high.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an adjustable bearing structure of position is bent and stretched to low limbs for wheelchair can dismantle and fix on current wheelchair support, solves the problem that ordinary wheelchair can not laborsaving operation regulation low limbs stretched straight position.
The utility model discloses a technical means as follows:
a lower limb bending and stretching position adjustable supporting structure for a wheelchair comprises a fixed column, a bending and stretching adjustable part, a connecting piece, a first supporting rod, a lower limb supporting platform and a second supporting rod, a connecting piece is vertically welded at the top of the fixed post, the connecting piece is movably hinged with a first supporting rod, a lower limb supporting table is arranged in the middle of the first supporting rod, a second supporting rod is sleeved outside one end of the first supporting rod far away from the connecting piece, the tail end of the second supporting rod is provided with a foot pedal, wherein the adjustable bending and stretching part comprises a shell, a screw rod, a handle, a worm gear nut, a worm, the shell is welded on the fixed column, the screw rod is fixedly connected with the first supporting rod, the worm is driven to rotate by rotating the handle, the worm rotates to drive the worm gear nut to rotate, the lead screw moves upwards or downwards under the action of the threads of the worm gear nut and the lead screw, and the first supporting rod rotates around the connecting piece to form a straight-extending or knee-bending supporting structure.
Preferably, the lower limb support platform comprises a support plate, and one side of the support plate is provided with a through groove penetrating through the first support rod and a through hole for fixing the fastener.
Preferably, the upper surface of the supporting plate is arc-shaped, an air cushion layer is laid on the upper surface of the supporting plate and connected with the air inlet head, and a first fixing band and a second fixing band which are matched with and used for fixing lower limbs are arranged on two sides of the supporting plate.
Preferably, the lower limb support platform is fixed at a certain position of the first support rod through a first fastener, and the second support rod is hollow and can be adjusted to be fixed at a certain position of the first support rod through a second fastener.
Preferably, the fixed column is fixed through first clamp and second clamp respectively, and first clamp and second clamp opening opposite direction.
Preferably, the fixed column is provided with an anti-skid rubber block with two opposite semicircular grooves on one side facing the support frame.
Adopt the utility model provides a lower limbs are bent and are stretched adjustable bearing structure of position for wheelchair has following advantage:
(1) the lifting support rod is operated in a labor-saving manner by utilizing a worm screw transmission principle, so that the lower limb straightening position and multi-angle knee bending position switching is realized, no extra space is occupied, and the wheelchair not only can be used as a normal wheelchair, but also is suitable for patients with lower limb fracture;
(2) the worm and the worm wheel nut are utilized, the nut and the lead screw are matched for secondary transmission, the transmission is stable, the self-locking performance is good, and the hand-cranking labor-saving operation is realized;
(3) the utilization sets up the air cushion on a supporting bench, and it is injured to reduce to rock in the transportation and lead to the secondary, improves the travelling comfort that the low limbs were place and can finely tune the affected part height as required.
(4) Can be detachably arranged on the prior wheelchair or bedside, does not occupy space and has multiple functions.
Drawings
FIG. 1 is a schematic view of a lower limb flexion-extension adjustable support structure for a wheelchair in an extended position;
FIG. 2 is a schematic view of a knee bending position of a lower limb bending and stretching position adjustable support structure for a wheelchair;
fig. 3 is a schematic structural view of the adjustable flexion-extension component 12;
fig. 4 is a schematic view of the transmission principle of the flexion-extension adjustable element 12;
FIG. 5 is a schematic view of the lower limb support platform 15;
fig. 6 is a schematic structural view of the anti-slip rubber block 3.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
The first embodiment is as follows: the utility model provides an adjustable bearing structure of position is bent and stretched to low limbs for wheelchair, including fixed column 11, bend and stretch adjustable 12, U-shaped connecting piece 13, first bracing piece 14, low limbs brace table 15 and second bracing piece 16, wherein fixed column 11 is fixed on the support frame 2 of wheelchair front wheel through first clamp 111 and second clamp 112 respectively, first clamp 111 and second clamp 112 opening opposite direction, fixed column 11 is equipped with the anti-skidding rubber piece 3 of taking two relative semicircle recesses towards support frame 2 one side, increase the frictional force of fixed column 11 and support frame 2, prevent that it from gliding under the effect of lower limbs gravity. The U-shaped connecting piece 13 is vertically welded on the top of the fixed column 11 and is used for movably hinging with the first supporting rod 14, a square lower limb supporting platform 15 is arranged in the middle of the first supporting rod 14, the lower limb supporting platform 15 is fixed at a certain position of the first supporting rod 14 through a first fastener 18, a second supporting rod 16 is sleeved outside one end, away from the U-shaped connecting piece 13, of the first supporting rod 14, the second supporting rod 16 is hollow, the fixing at a certain position of the first supporting rod 14 can be adjusted through a second fastener 19, namely the length of the first supporting rod 14 is adjusted through the sleeving position of the second supporting rod 16, and the tail end of the second supporting rod 16 is provided with a pedal 17.
The bending and stretching adjustable part 12 comprises a shell 121, a lead screw 122, a handle 123, a worm gear nut 124, a worm 125, wherein the shell 121 is welded on the fixed column 11, the lead screw 122 is hinged to the first supporting rod 14 in a 450 mode, the outer surface of the worm gear nut 124 is provided with a worm wheel, the inner surface of the worm wheel nut 124 is provided with trapezoidal threads, the handle 123 is connected with the worm 125 through a connecting key, the handle 123 drives the worm 125 to rotate through clockwise/anticlockwise rotation of the handle 123, the worm 125 rotates to drive the worm gear nut 124 to rotate, and under the action of the trapezoidal threads of the worm gear nut 124 and the lead screw 122, the lead screw 122 moves upwards or downwards, so that the first supporting rod 14 is driven to rotate for a certain angle around the U-shaped connecting part 13.
The lower limb support platform 15 is a support plate 151 made of light aluminum alloy, one side of the support plate 151 is provided with a through groove 152 penetrating through the first support rod 14 and a through hole 157 fixing the fastener 18, the upper surface of the support plate 151 is arc-shaped, an air cushion layer 153 is paved on the upper surface of the support plate 151, the air cushion layer 153 is connected with an air inlet head 154, the injured lower limb is placed on the air cushion layer 153, and inflation is performed through a balloon or an air injection piece, so that on one hand, the air cushion layer is soft and elastic and has high comfort, and secondary injury caused by; on the other hand, a certain height is increased according to the requirement, the blood circulation is promoted, and the postoperative leg and foot swelling is reduced. In addition, a first fixing strap 155 and a second fixing strap 156 are disposed on two sides of the supporting plate 151 for fixing the lower limbs in a matching manner, and the ends of the first fixing strap 155 and the second fixing strap 156 are respectively provided with a male-female buckle.
In summary, the lower limb flexion and extension position adjustable support structure for the wheelchair, provided by the utility model, is convenient to install on the existing wheelchair, occupies no space, utilizes the screw transmission principle to operate the lifting support rod in a labor-saving manner, realizes the lower limb extension position and the multi-angle knee flexion position, is suitable for patients with lower limb fracture to use, and can be used as a normal wheelchair; in addition, the air cushion is arranged on the supporting platform, so that the comfort of placing the lower limbs is improved, and the height of the affected part can be finely adjusted according to the requirement.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an adjustable bearing structure of position is bent and stretched to low limbs for wheelchair which characterized in that: comprises a fixed column, a bending and stretching adjustable part, a connecting piece, a first supporting rod, a lower limb supporting platform and a second supporting rod, a connecting piece is vertically welded at the top of the fixed post, the connecting piece is movably hinged with a first supporting rod, a lower limb supporting table is arranged in the middle of the first supporting rod, a second supporting rod is sleeved outside one end of the first supporting rod far away from the connecting piece, the tail end of the second supporting rod is provided with a foot pedal, wherein the adjustable bending and stretching part comprises a shell, a handle, a lead screw, a worm gear nut and a worm, the shell is welded on the fixed column, the lead screw is fixedly connected with the first supporting rod, the outer surface of the worm gear nut is a worm gear, the inner surface of the worm gear nut is a trapezoidal thread, the worm is driven to rotate by rotating the handle, the worm rotates to drive the worm gear nut to rotate, the lead screw moves upwards or downwards under the action of the threads of the worm gear nut and the lead screw, and the first supporting rod rotates around the connecting piece to form a straight-extending or knee-bending supporting structure.
2. The lower limb flexion-extension adjustable support structure for the wheelchair of claim 1, wherein: the lower limb support platform comprises a support plate, wherein a through groove penetrating through the first support rod and a through hole for fixing a fastener are formed in one side of the support plate.
3. The lower limb flexion-extension adjustable support structure for the wheelchair of claim 2, wherein: the backup pad upper surface is the arc, and the air cushion layer is laid to the backup pad upper surface, and the air inlet head is connected to the air cushion layer, and the backup pad both sides are equipped with the first fixed band and the second fixed band of the fixed low limbs of cooperation.
4. The lower limb flexion-extension adjustable support structure for the wheelchair of claim 1, wherein: the lower limb support platform is fixed at a certain position of the first support rod through the first fastener, the second support rod is hollow, and the lower limb support platform can be adjusted to be fixed at a certain position of the first support rod through the second fastener.
5. The lower limb flexion-extension adjustable support structure for the wheelchair of claim 1, wherein: the fixed column is fixed through first clamp and second clamp respectively, and first clamp and second clamp opening opposite direction.
6. The lower limb flexion-extension adjustable support structure for the wheelchair of claim 1, wherein: the fixed column is equipped with the anti-skidding rubber piece of taking two relative semicircle recesses towards support frame one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453214.5U CN212015985U (en) | 2019-12-31 | 2019-12-31 | Adjustable supporting structure for lower limb flexion and extension position of wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453214.5U CN212015985U (en) | 2019-12-31 | 2019-12-31 | Adjustable supporting structure for lower limb flexion and extension position of wheelchair |
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| Publication Number | Publication Date |
|---|---|
| CN212015985U true CN212015985U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922453214.5U Active CN212015985U (en) | 2019-12-31 | 2019-12-31 | Adjustable supporting structure for lower limb flexion and extension position of wheelchair |
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| CN (1) | CN212015985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115068246A (en) * | 2022-06-27 | 2022-09-20 | 浙江大学医学院附属第一医院 | Medical treatment is with low limbs massage device of raising |
-
2019
- 2019-12-31 CN CN201922453214.5U patent/CN212015985U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115068246A (en) * | 2022-06-27 | 2022-09-20 | 浙江大学医学院附属第一医院 | Medical treatment is with low limbs massage device of raising |
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