CN220735761U - Adjustable recovery walker - Google Patents

Abstract

The utility model provides an adjustable rehabilitation walker which comprises a semi-enclosed supporting underframe, a front wheel set and a rear wheel set which are arranged at the bottom of the supporting underframe, a back support column which is vertically fixed at the back of the supporting underframe and has an adjustable upper section, a mounting cross rod which is fixed at the top end of the back support column along the left-right direction, two parallel support rods which are fixed at the two ends of the mounting cross rod and extend forwards, armrests which are arranged at the front ends of the support rods, and a backboard component which is arranged on the two support rods in a penetrating manner and can adjust the positions along the support rods forwards and backwards. Through the height of adjustment back support column, can the synchronous adjustment handrail, handrail and backplate subassembly highly, make it form most suitable supporting height, through the front and back position of adjustment backplate subassembly on the handrail, can make between backplate subassembly and the handrail reach the optimum interval, in sum, this walker can improve security and the travelling comfort of use through the height and the interval of adjusting each bearing structure, and adjustable range is big, and the regulation is easy and simple to handle.

Description

Adjustable recovery walker

Technical Field

The utility model relates to the technical field of rehabilitation auxiliary instruments, in particular to an adjustable rehabilitation walker.

Background

When a handicapped person or a cerebral palsy child performs walking rehabilitation training, a special rehabilitation walker is needed, so that the working intensity of a caretaker can be reduced, and the safety of the user can be effectively protected.

Because the users of the rehabilitation walker lack autonomous movement capability, the product design needs to fully consider not only the safety during use, but also the comfort and convenience of use. The Chinese patent with the bulletin number of CN213311458U discloses a rehabilitation walker which is lighter and has high safety, but a plurality of improved places still exist, such as the height of the girdle part of the walker can be adjusted to be suitable for different users, but the application range is limited, when the height or the arm length difference of the users is large, the structures such as the height of the handrail, the distance between the handle and the girdle part, the height of the headrest part and the like, which relate to the use safety and the comfort, cannot be adjusted adaptively, so that the use safety and the comfort are reduced.

Disclosure of Invention

The utility model aims to provide a walker which can be flexibly adjusted according to the height or arm length of a user so as to improve the comfort and the safety of use.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an adjustable recovered walker, includes front side open-ended semi-enclosed support chassis, locates support front wheelset and the back wheelset of chassis bottom, vertical be fixed in support chassis back central point put and the back support column of upper segment adjustable height, along controlling the orientation be fixed in the installation horizontal pole on back support column top, be fixed in two parallel rails that install horizontal pole both ends and extend forward, install in the handrail of rail front end, and wear to locate two on the rail and can follow the backplate subassembly of rail forward and backward adjustment position.

In a preferred scheme, each wheel of the front wheel set and the rear wheel set is provided with a U-shaped arm hinged with two ends of a wheel central shaft, and the top ends of the U-shaped arms are rotatably arranged on the supporting underframe around a vertical axis through a mounting support; and each mounting support is also provided with a locking assembly for locking the wheel in the forward position.

The mounting support comprises a mounting shaft vertically fixed to the bottom of the supporting underframe and a rotary table rotatably mounted on the mounting shaft through a bearing, and the top end of the U-shaped arm is fixed with the rotary table; the locking assembly comprises a mounting plate which is fixedly arranged on the mounting shaft in a penetrating way and radially extends outwards, a positioning sleeve which is fixedly arranged at the outer end of the mounting plate and faces to the top surface of the rotary table, a lock pin which is movably arranged in the positioning sleeve in a penetrating way along the axial direction, an extension spring which is sleeved on the lock pin and enables the lock pin to have a downward reset trend, a handle which is fixedly arranged at the top end of the lock pin and can drive the lock pin to axially move and rotate around the axial lead, and a positioning hole which is arranged on the rotary table and is used for inserting the bottom end of the lock pin; the upper section of the locating sleeve is provided with two locating notches with different axial heights along the axial direction, and the handle is provided with a limiting block which extends along the axial direction and is used for limiting the locating notches in an axial propping way.

The rear wheel set is provided with a speed reducer, the speed reducer comprises a fixing strip which extends along the radial direction of a wheel and is fixed on the U-shaped arm in an adjustable position, a handle hinged to one side of the top end of the fixing strip through a first hinge point, a speed reduction installation strip positioned below the same side of the handle and the front end of the speed reduction installation strip is hinged to the fixing strip through a second hinge point, and a friction roller which is axially arranged along the wheel and rotatably installed at the rear end of the speed reduction installation strip; the handle is provided with a cam part which is formed by extending to the rear lower side of the first hinge point, and when the cam part rotates around the first hinge point, the bottom edge of the cam part can be propped against to drive the speed reduction mounting strip to be pressed down; a self-locking connecting rod is hinged between the cam part and the speed reduction mounting strip, and a torsion spring for driving the speed reduction mounting strip to generate lifting trend is further arranged between the middle part of the speed reduction mounting strip and the second hinge point.

The bottom support frame is arranged horizontally, the side support frames are positioned above the bottom support frame, and the front ends of the two sides of the side support frames are respectively connected with the front ends of the two sides of the bottom support frame; the back support column comprises a tubular lower section part, wherein the bottom end of the tubular lower section part is fixed with the rear beam of the bottom support frame, the top end of the tubular lower section part is fixed with the rear beam of the side support frame, and an upper section part which is inserted into the lower section part and can adjust the fixed height.

In a preferred scheme, the front ends of the two sides of the side support frame are respectively hinged with the front ends of the two sides of the bottom support frame; the bottom of the lower section part is also provided with a fixed seat fixed with the bottom support frame, the bottom of the lower section part is hinged on the fixed seat, and a detachable fixed structure is arranged between the top of the lower section part and the back beam of the side support frame.

Preferably, the handrail comprises an elbow section fixed with the handrail rod and a hand holding section vertically extending from the elbow section; the armrest can rotate around the axial lead of the armrest rod and is positioned.

Preferably, the backboard component and the handrail are of a detachable structure.

The utility model has the beneficial effects that: through the height of adjustment back support column, can the synchronous adjustment relate to supporting handrail, handrail and the high of backplate subassembly, make it can form the most suitable supporting height to the user of different heights, because user's arm is critical support and application of force position, through the front and back position of adjustment backplate subassembly on the handrail, can make to reach the easiest force and the most comfortable interval of user between backplate subassembly and the handrail, in sum, this walker can improve security and the travelling comfort of use through the height and the interval of adjustment each bearing structure, and adjustable range is big, it is easy and simple to handle to adjust.

Drawings

The utility model will now be described in further detail with reference to the drawings and to specific examples.

Fig. 1 is a schematic view of the overall structure of a walker according to the embodiment;

FIG. 2 is a schematic view of a wheel mounting structure in an embodiment;

FIG. 3 is a schematic view of the mounting structure of the mounting bracket and locking assembly of the wheel of the embodiment;

FIG. 4 is a schematic diagram showing a mounting structure of a reduction gear unit in the embodiment;

FIG. 5 is a schematic cross-sectional view of a reduction gear mounting structure in an embodiment;

FIG. 6 is a schematic view of a walker folding method;

fig. 7 is a schematic diagram of a latch assembly mounting structure of the back plate assembly.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to fig. 1 and 2, an adjustable rehabilitation walker comprises a semi-enclosed supporting chassis 1 with an opening at the front side, a front wheel set 2 and a rear wheel set 2' arranged at the bottom of the supporting chassis 1, a back support column 3 with an adjustable height at the upper section and vertically fixed at the center of the back of the supporting chassis 1, an installation cross rod 4 fixed at the top end of the back support column 3 along the left-right direction, two parallel support rods 5 fixed at the two ends of the installation cross rod 4 and extending forwards, armrests 6 mounted at the front ends of the support rods 5, a back plate assembly 7 penetrating through the two support rods 5 and capable of adjusting positions along the front and rear directions of the support rods 5, and a support headrest 8 fixed on the back plate assembly 7.

Through the height of adjustment back support column 3, can synchronous adjustment relate to supporting's rest 5, handrail 6 and backplate subassembly 7 and support headrest 8 high, make it can form the most suitable supporting height to the user of different heights, because user's arm is the critical support and application of force position, through the front and back position of adjustment backplate subassembly 7 on rest 5, can make backplate subassembly 7 and support headrest 8 and handrail 6 between reach the easiest effort of user and the interval that is most comfortable, in sum, this walker can improve the security and the travelling comfort of use through the height and the interval of adjusting each bearing structure, and adjustable range is big, it is easy and simple to handle to adjust.

In this embodiment, each wheel 21 of the front wheel set 2 and the rear wheel set 2' is provided with a U-shaped arm 22 hinged to two ends of a central shaft 211 of the wheel 21, and the top end of the U-shaped arm 22 is rotatably mounted on the support chassis 1 around a vertical axis through a mounting support 23; and each of the mounting brackets 23 is further provided with a locking assembly 24 for locking the wheel 21 in the forward position. Each wheel 21 and the U-shaped arm 22 thereof can rotate around the vertical axis, so that the walker can move to any direction, the flexibility of the walker is improved, and the locking assembly 24 is arranged, so that part or all of the wheels 21 can be limited in the front direction, the walker can walk along a certain straight line, and the safety of some users with poor autonomous mobility can be ensured.

Referring to fig. 2 and 3, in the present embodiment, the mounting support 23 includes a mounting shaft 231 vertically fixed to the bottom of the support chassis 1, and a turntable 232 rotatably mounted on the mounting shaft 231 through a bearing, and the top end of the U-shaped arm 22 is fixed to the turntable 232; the locking assembly 24 includes a mounting plate 241 penetrating and fixed on the mounting shaft 231 and extending radially, a positioning sleeve 242 penetrating and fixed on the outer end of the mounting plate 241 and facing the top surface of the turntable 232, a locking pin 243 axially movably penetrating and fixed in the positioning sleeve 242, an extension spring 244 sleeved on the locking pin 243 and making the locking pin 243 have a downward reset trend, a handle 245 fixed on the top end of the locking pin 243 and capable of driving the locking pin 243 to axially move and rotate around the axis, and a positioning hole 246 provided on the turntable 232 and used for inserting the bottom end of the locking pin 243; the upper section of the positioning sleeve 242 is provided with two positioning slots 2411 with different axial heights along the axial direction, and the pull handle 245 is provided with a limiting block 2451 which extends along the axial direction and is used for axially abutting against and limiting each positioning slot 2411. The working principle is as follows: in normal use, each wheel 21 rolls around its central axis 211 and also rotates freely with the U-shaped arm 22 along with the turntable 232 around the vertical mounting axis 231; the locked wheel 21 can only move along a straight line after the locking component 24 locks the wheel 21; specifically, when the locking assembly 24 locks the wheel 21, the wheel 21 is firstly aligned, then the locking pin 243 is pulled upwards in the axial direction by the handle 245, the limiting block 2451 of the handle 245 is separated from the higher positioning notch 2411 of the positioning sleeve 242, the handle 245 is rotated, the limiting block 2451 corresponds to the lower positioning notch 2411, the handle 245 is released, and the locking pin 243 moves downwards in the axial direction under the action of the elastic force of the tension spring 244 until the bottom end of the locking pin 243 is inserted into the positioning hole 246 of the turntable 232; because the mounting plate 241 is fixed relative to the mounting shaft 231, the turntable 232 is locked by the locking pin 243 and cannot rotate any more, so that the corresponding wheel 21 cannot be turned. The locking of the wheels 21 can be achieved by pulling and rotating the handle 245, and the operation is simple and convenient. In other embodiments, the locking assembly 24 may also be configured to lock the wheel 21 in the forward direction by a latch and a socket, or by a latch and a slot, etc.

Referring to fig. 1, 4 and 5, in the present embodiment, the rear wheel set 2' is provided with a speed reducing device 25, the speed reducing device 25 includes a fixing bar 251 that extends radially along the wheel 21 and is adjustably fixed to the U-shaped arm 22, a handle 253 hinged to a top end side of the fixing bar 251 through a first hinge point 252, a speed reducing mounting bar 255 located below a same side of the handle 253 and having a front end hinged to the fixing bar 251 through a second hinge point 254, and a friction roller 256 axially disposed along the wheel 21 and rotatably mounted to a rear end of the speed reducing mounting bar 255; the handle 253 has a cam portion 2531 extending downward and rearward of the first hinge point 252, and when the cam portion 2531 rotates around the first hinge point 252, a bottom edge thereof can push the deceleration mounting bar 255 downward; a self-locking connecting rod 257 is further hinged between the cam portion 2531 and the speed reduction mounting strip 255, and a torsion spring 258 for driving the speed reduction mounting strip 255 to generate a lifting trend is further arranged between the middle portion of the speed reduction mounting strip 255 and the second hinge point 254. The working principle is as follows: pressing down the handle 253, the handle 253 rotates around the first hinge point 252, and simultaneously the cam portion 2531 of the handle 253 abuts against the speed reduction mounting bar 255 to press down around the second hinge point 254, so that the friction roller 256 is forced to contact with the wheel 21; in the absence of a downward pressure, the torsion spring 258 can drive the friction roller 256 to move away from the wheel 21 and automatically lift, i.e. the handle 253 is lifted, and the friction roller 256 also follows the lifting; a self-locking connecting rod 257 is hinged between the cam part 2531 and the speed reduction mounting strip 255, and when the handle 253 is pressed down, once the extension line of the self-locking connecting rod 257 swings to pass through the first hinge point 252, a self-locking structure is formed, so that the speed reduction mounting strip 255 cannot push the handle reversely to lift, and the friction roller 256 generates braking and speed reduction effects on the wheels 21; in this embodiment, the fixing strip 251 is provided with a long hole 2511 along the length direction thereof, and is fixed on the U-shaped arm 22 by a plurality of screws penetrating through the long hole 2511, and the height of the speed reducer 25 can be adjusted by adjusting the locking position of the screws and the long hole 2511, and the speed reducing effect can be adjusted by adjusting the contact force between the friction roller 256 and the wheel 21.

Referring to fig. 1, in this embodiment, the supporting chassis 1 includes a side supporting frame 11 and a bottom supporting frame 12, which are open forward and are U-shaped, the bottom supporting frame 12 is disposed horizontally, the side supporting frame 11 is located above the bottom supporting frame 12, and front ends of two sides of the side supporting frame are respectively connected with front ends of two sides of the bottom supporting frame 12; the back support column 3 includes a tubular lower section 31 having a bottom end fixed to the rear beam of the bottom support frame 12 and a top end fixed to the rear beam of the side support frame 11, and an upper section 32 inserted into the lower section 31 and having an adjustable fixed height. The side support frames 11, the bottom support frame 12 and the lower section 31 of the back support column 3 respectively form a stable triangle structure on two sides of the support underframe 1, thereby improving the bearing capacity and the structural reliability of the support underframe 1.

Referring to fig. 1 and 6, in this embodiment, the front ends of the two sides of the side support 11 are hinged to the front ends of the two sides of the bottom support 12, respectively; the bottom end of the lower section 31 is further provided with a fixing seat 311 fixed with the bottom support frame 12, the bottom end of the lower section 31 is hinged to the fixing seat 311, and a detachable fixing structure is arranged between the top end of the lower section 31 and the rear beam of the side support frame 11. When the walker is stored, the upper section 32 of the back support column 3 can be lowered to the lowest position, the top end of the lower section 31 and the rear Liang Cakai of the side support frame 11 are lifted up around the hinge point of the front end, so that the side support frame 11 and the bottom support frame 12 are opened by a larger angle, the back support column 3 is conveniently driven to rotate and press the support rod 5, the backboard component 7 and other structures around the fixed seat 311 of the bottom end, so that the back support column 3 is approximately parallel to the bottom support frame 12, and finally the side support frame 11 is pressed down around the hinge point of the front end and is folded together with the bottom support frame 12, so that the walker can be folded into a smaller volume, and is convenient to carry and store.

Referring to fig. 1, in this embodiment, the armrest 6 includes an elbow section 61 fixed to the armrest 5, and a hand grip section 62 vertically extending from the elbow section 61; the armrest 6 is rotatable and positionable about the axis of the armrest rod 5. The handrail 6 can be positioned in a rotary way around the axial lead of the handrail 5, on one hand, a user can conveniently adjust the holding section 62 to the most comfortable holding angle, on the other hand, after the holding section 62 deflects to the inner side by a certain angle, the handrail can form a surrounding guardrail with the handrail 5 on two sides, and the safety of the walker is further improved.

Referring to fig. 7, in this embodiment, the back plate assembly 7 and the handrail 5 are in a detachable structure. Specifically, two sides of the back plate assembly 7 are respectively provided with a latch assembly 71 penetrating through the supporting rod 5, the latch assembly 71 includes a latch base 711 having an arc groove on an outer side, and a latch 712 disposed on an outer side of the latch base 711 and having an arc groove on an inner side, one end of the latch 712 is hinged to the latch base 711, and the other end is locked to the latch base 711 by a screw 713. The screws 713 are loosened, the back plate assembly 7 can be adjusted at the front and rear positions of the handrail 5, and the screws 713 are loosened, so that the back plate assembly 7 and the support headrest 8 can be taken down, and at the moment, the walker can be normally used for users with slightly strong autonomous movement capability and is lighter.

The above description should not be taken as limiting the scope of the utility model, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims (8)

1. An adjustable rehabilitation walker which is characterized in that: including front side open-ended semi-enclosed support chassis, locate support front wheelset and back wheelset of chassis bottom, vertical being fixed in support chassis back central point put and the back support column of upper segment adjustable height, along controlling the direction be fixed in the installation horizontal pole on back support column top, be fixed in two parallel rails that install horizontal pole both ends and extend forward, install in the handrail of rail front end, and wear to locate two on the rail and can follow the backplate subassembly of rail front and back direction adjustment position.

2. An adjustable rehabilitation walker as claimed in claim 1 wherein: each wheel of the front wheel set and the rear wheel set is provided with a U-shaped arm hinged with two ends of a wheel central shaft, and the top ends of the U-shaped arms are rotatably arranged on the supporting underframe around a vertical axis through a mounting support; and each mounting support is also provided with a locking assembly for locking the wheel in the forward position.

3. An adjustable rehabilitation walker as claimed in claim 2 wherein: the mounting support comprises a mounting shaft vertically fixed at the bottom of the supporting underframe and a rotary table rotatably mounted on the mounting shaft through a bearing, and the top end of the U-shaped arm is fixed with the rotary table; the locking assembly comprises a mounting plate which is fixedly arranged on the mounting shaft in a penetrating way and radially extends outwards, a positioning sleeve which is fixedly arranged at the outer end of the mounting plate and faces to the top surface of the rotary table, a lock pin which is movably arranged in the positioning sleeve in a penetrating way along the axial direction, an extension spring which is sleeved on the lock pin and enables the lock pin to have a downward reset trend, a handle which is fixedly arranged at the top end of the lock pin and can drive the lock pin to axially move and rotate around the axial lead, and a positioning hole which is arranged on the rotary table and is used for inserting the bottom end of the lock pin; the upper section of the locating sleeve is provided with two locating notches with different axial heights along the axial direction, and the handle is provided with a limiting block which extends along the axial direction and is used for limiting the locating notches in an axial propping way.

4. An adjustable rehabilitation walker as claimed in claim 2 wherein: the rear wheel set is provided with a speed reducer, the speed reducer comprises a fixing strip which extends along the radial direction of a wheel and is fixed on the U-shaped arm in an adjustable position, a handle hinged to one side of the top end of the fixing strip through a first hinge point, a speed reduction installation strip positioned below the same side of the handle and the front end of which is hinged to the fixing strip through a second hinge point, and a friction roller which is axially arranged along the wheel and rotatably installed at the rear end of the speed reduction installation strip; the handle is provided with a cam part which is formed by extending to the rear lower side of the first hinge point, and when the cam part rotates around the first hinge point, the front end of the bottom edge of the cam part can be propped against to drive the speed reduction installation strip to be pressed down; a self-locking connecting rod is hinged between the cam part and the speed reduction mounting strip, and a torsion spring for driving the speed reduction mounting strip to generate lifting trend is further arranged between the middle part of the speed reduction mounting strip and the second hinge point.

5. An adjustable rehabilitation walker as claimed in claim 1 wherein: the support underframe comprises a side support frame and a bottom support frame, wherein the side support frame is opened forward and is U-shaped, the bottom support frame is horizontally arranged, the side support frame is positioned above the bottom support frame, and the front ends of the two sides of the side support frame are respectively connected with the front ends of the two sides of the bottom support frame; the back support column comprises a tubular lower section part, wherein the bottom end of the tubular lower section part is fixed with the rear beam of the bottom support frame, the top end of the tubular lower section part is fixed with the rear beam of the side support frame, and an upper section part which is inserted into the lower section part and can adjust the fixed height.

6. The adjustable walker of claim 5 wherein: front ends of two sides of the side support frame are respectively hinged with front ends of two sides of the bottom support frame; the bottom of the lower section part is also provided with a fixed seat fixed with the bottom support frame, the bottom of the lower section part is hinged on the fixed seat, and a detachable fixed structure is arranged between the top of the lower section part and the back beam of the side support frame.

7. An adjustable rehabilitation walker as claimed in claim 1 wherein: the handrail comprises an elbow section fixed with the handrail rod and a hand holding section vertically extending from the elbow section;

the armrest can rotate around the axial lead of the armrest rod and is positioned.

8. An adjustable rehabilitation walker as claimed in claim 1 wherein: the backboard component and the handrail are of a detachable assembly structure.