CN111297641A

CN111297641A - Foldable portable walking aid

Info

Publication number: CN111297641A
Application number: CN202010116797.7A
Authority: CN
Inventors: 郭力
Original assignee: Wuhan Shangchengyuan Health Technology Co ltd
Current assignee: Wuhan Shangchengyuan Health Technology Co ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-06-19

Abstract

The invention discloses a foldable portable walking aid, which comprises a pair of supporting tubes and a folding mechanism, wherein the folding mechanism comprises two folding rods, two connecting blocks, two first locking pins and a second locking pin, the two connecting blocks are respectively fixed at the inner sides of rear side tubes of the two supporting tubes, rectangular grooves with openings at the front side and the inner side are formed on the connecting blocks, through holes and first pin holes are formed on the rectangular grooves, two ends of a short rod of each folding rod are inserted and sleeved in the through holes, the first locking pin inserting grooves are formed in the first pin holes, and a long rod of each folding rod is clamped between the first locking pin and the rear side wall of the rectangular groove; the inner end of the long rod is formed with a lock pipe, and the two lock pipes are arranged up and down and are sleeved on the second lock pin; two ports of the supporting tube are respectively connected with a telescopic supporting leg, and a detachable supporting strip is connected between the two supporting tubes. According to the invention, the two supporting tubes can be stacked through the folding mechanism, and the supporting legs can be stretched and retracted, so that the conveying and transferring are convenient, and the folding is simple and rapid.

Description

Foldable portable walking aid

Technical Field

The invention relates to the technical field of walking aids, in particular to a foldable portable walking aid.

Background

The walking aid is a common auxiliary tool for supporting people with inconvenient legs and feet, so that the people can take care of themselves and walk as normal people, and the existing walking aids are various. However, the existing walking aid is relatively fixed and cannot be folded when being used up, and when a user needs to take a car or go out for playing, the walking aid occupies a large space, so that the transportation is inconvenient.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a foldable portable walking aid, which can stack two supporting tubes through a folding mechanism, can stretch and retract supporting legs, is convenient to convey and transfer, and is simple and quick to fold.

The scheme for solving the technical problems is as follows:

a foldable portable walking aid comprises a folding mechanism, wherein a pair of inverted U-shaped supporting tubes which are bilaterally symmetrically arranged are arranged between the two supporting tubes, the folding mechanism comprises two T-shaped folding rods, two connecting blocks, two first locking pins and a second locking pin, the two connecting blocks are respectively fixed on the inner sides of the rear side tubes of the two supporting tubes, rectangular grooves with openings at the front sides and the inner sides are formed on the connecting blocks, through holes penetrating through the rectangular grooves are formed at the outer ends of the rectangular grooves, first pin holes penetrating through the rectangular grooves are formed at the front sides of the inner ends of the rectangular grooves, two ends of short rods of the folding rods are inserted and sleeved in the through holes, the first locking pin inserting grooves are arranged in the first pin holes, and long rods of the folding rods are clamped between the first locking pins and the rear side walls of the rectangular grooves; the inner end of the long rod is formed with a lock pipe, and the two lock pipes are arranged up and down and are sleeved on the second lock pin;

two ports of the supporting tubes are respectively connected with a telescopic supporting leg, and a detachable supporting strip is connected between the cross bars at the upper ends of the two supporting tubes.

The first pin hole is a threaded hole, the first lock pin is a screw matched with the first pin hole, a conical part is formed at the lower end of the first lock pin, and a rotating part is formed at the upper end of the first lock pin.

The second lockpin includes integrated into one piece's lifting portion, integral key shaft and guide bar, and the shaping has first splined hole on the inner wall of the lock pipe of upside, and the shaping has second splined hole and the guiding hole that sets up from top to bottom on the inner wall of the lock pipe of downside, and lifting portion presses on the lock pipe of upside, and the integral key shaft plug bush is in first splined hole and second splined hole, and the guide bar plug bush is in the guiding hole.

The guide rod penetrates through the lower extending end of the guide hole, a stop block is fixed, and a spring is clamped between the stop block and the lock tube on the lower side.

The support legs comprise plug bushes and are fixed on plug bushes at the ports of the support tubes, long screws are screwed in the plug bushes, the upper ends of the long screws extend into the support tubes, supporting parts are fixed at the lower ends of the long screws, and nylon cushions are fixed on the supporting parts; the middle part of the long screw is screwed with a knurled nut, and the knurled nut is pressed on the plug bush.

The both ends of support bar respectively the shaping have a downside open-ended slot, and the external diameter interference fit setting of slot and upper end horizontal pole.

And a reinforcing rod is fixed between the rear side pipe of the supporting pipe and the front side pipe of the supporting pipe, and the other supporting bar is inserted and sleeved on the two reinforcing rods.

The invention has the following outstanding effects: compared with the prior art, it can pile up two stay tubes through folding mechanism, and the stabilizer blade can stretch out and draw back simultaneously, conveniently carries and shifts, and folding simple, swift.

Drawings

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a cross-sectional view of FIG. 2 taken about A-A;

FIG. 4 is a partial enlarged view of FIG. 3 with respect to B;

FIG. 5 is an enlarged view of a portion of FIG. 3 with respect to C;

FIG. 6 is a cross-sectional view of FIG. 4 taken about D-D;

fig. 7 is a schematic view of the present invention in a folded state.

Detailed Description

Example, as shown in figures 1 to 7, a foldable portable walking aid comprises a pair of bilaterally symmetrically arranged supporting tubes 1 in an inverted U shape, a folding mechanism 2 arranged between the two supporting tubes 1, the folding mechanism 2 comprises two T-shaped folding rods 21, two connecting blocks 22, two first locking pins 23 and a second locking pin 24, the two connecting blocks 22 are respectively fixed at the inner sides of the rear side pipes 11 of the two supporting pipes 1, rectangular grooves 221 with openings at the front side and the inner side are formed on the connecting blocks 22, through holes 222 penetrating through the rectangular grooves 221 are formed at the outer ends of the rectangular grooves 221, first pin holes 223 penetrating through the rectangular grooves 221 are formed at the front sides of the inner ends of the rectangular grooves 221, two ends of short rods 211 of the folding rods 21 are inserted in the through holes 232, the first locking pins 23 are inserted in the first pin holes 223, the long rod 212 of the folding rod 21 is clamped between the first lock pin 23 and the rear side wall of the rectangular groove 221; a lock tube 213 is formed at the inner end of the long rod 212, and the two lock tubes 213 are arranged up and down and are sleeved on the second lock pin 24;

two ports of the supporting tube 1 are respectively connected with a telescopic supporting leg 3, and a detachable supporting bar 4 is connected between the cross bars 12 at the upper ends of the two supporting tubes 1.

More specifically, the first pin hole 222 is a threaded hole, the first locking pin 23 is a threaded rod that fits into the first pin hole 222, a conical portion 231 is formed at the lower end of the first locking pin 23, and a rotating portion 232 is formed at the upper end of the first locking pin 23.

Further, the second lock pin 24 includes a pull-up portion 241, a spline shaft 242, and a guide rod 243 which are integrally formed, a first spline hole 214 is formed on an inner wall of the upper lock tube 213, a second spline hole 215 and a guide hole 216 which are vertically disposed are formed on an inner wall of the lower lock tube 213, the pull-up portion 241 is pressed against the upper lock tube 213, the spline shaft 242 is inserted into the first spline hole 214 and the second spline hole 215, and the guide rod 243 is inserted into the guide hole 216.

Further, a stopper 244 is fixed to the lower end of the guide rod 243 extending through the guide hole 216, and a spring 245 is interposed between the stopper 244 and the lower lock tube 213.

Furthermore, the supporting leg 3 comprises an inserting sleeve 31 which is inserted and fixed at the port of the supporting tube 1, a long screw 32 is screwed in the inserting sleeve 31, the upper end of the long screw 32 extends into the supporting tube 1, a supporting part 33 is fixed at the lower end of the long screw 32, and a nylon cushion 34 is fixed on the supporting part 33; the middle part of the long screw rod 32 is screwed with a knurled nut 35, and the knurled nut 35 is pressed on the plug bush 31.

Furthermore, two ends of the supporting bar 4 are respectively formed with a slot 41 with an opening at the lower side, and the slots 41 are arranged in interference fit with the outer diameter of the upper cross bar 12.

Furthermore, a reinforcing rod 5 is fixed between the rear side tube 11 of the support tube 1 and the front side tube 13 of the support tube 1, and the other support bar 4 is inserted and sleeved on the two reinforcing rods 5.

The working principle is as follows: the folding process, firstly, the support strip 4 between the two support tubes 1 and the support strip 4 between the two reinforcing rods 5 are removed; secondly, unscrewing the knurled nut 35, rotating the screw rod 32, and extending the long screw rod into the support tube 1 under the action of the inserting sleeve 31 so as to furl the support legs 3; thirdly, the first locking pin 23 on the left side is rotated, the first locking pin 23 on the left side moves upwards to release the constraint on the long rod 212 of the folding rod 21 on the left side, and then the support tube 3 on the right side rotates clockwise around the short rod 211 of the folding rod 21 on the left side by a certain angle; fourthly, the pulling part 241 is pulled upwards, the pulling part 241 drives the spline shaft 242 to move upwards and separate from the second spline hole 215, the spline shaft 242 releases the constraint on the lower lock tube 213, the two lock tubes 213 can rotate mutually, and then the right support tube 1 rotates anticlockwise by a certain angle by taking the lock tube 213 as an axis; fifthly, the first locking pin 23 on the right side is turned, the first locking pin 23 on the right side moves upwards to release the restriction of the long rod 212 of the folding rod 21 on the right side, and then the support tube 3 on the right side rotates clockwise by a certain angle around the short rod 211 of the folding rod 21 on the right side, so that the state shown in fig. 7 is obtained;

when the walking aid is unfolded, the supporting bars 4 between the two supporting tubes 1 are arranged on the two reinforcing rods 5, and the two supporting bars 4 are arranged on the two reinforcing rods 5, so that a person with leg and foot inconvenience can sit on the two supporting bars 4 conveniently.

Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a collapsible portable helps capable ware, includes that a pair of bilateral symmetry sets up and is the stay tube (1) of falling "U" style of calligraphy and sets up folding mechanism (2) between two stay tubes (1), its characterized in that: the folding mechanism (2) comprises two T-shaped folding rods (21), two connecting blocks (22), two first lock pins (23) and a second lock pin (24), the two connecting blocks (22) are respectively fixed on the inner sides of rear side pipes (11) of the two support pipes (1), rectangular grooves (221) with openings on the front sides and the inner sides are formed in the connecting blocks (22), through holes (222) penetrating through the rectangular grooves (221) are formed in the outer ends of the rectangular grooves (221), first pin holes (223) penetrating through the rectangular grooves (221) are formed in the front sides of the inner ends of the rectangular grooves (221), two ends of short rods (211) of the folding rods (21) are inserted in the through holes (232), the first lock pins (23) are inserted in the first pin holes (223), and long rods (212) of the folding rods (21) are clamped between the first lock pins (23) and the rear side walls of the rectangular grooves (221); the inner end of the long rod (212) is formed with a lock pipe (213), and the two lock pipes (213) are arranged up and down and are sleeved on the second lock pin (24);

two ports of the supporting tubes (1) are respectively connected with a telescopic supporting leg (3), and a detachable supporting bar (4) is connected between the upper end cross bars (12) of the two supporting tubes (1).

2. A foldable portable walker according to claim 1 wherein: the first pin hole (222) is a threaded hole, the first lock pin (23) is a screw rod matched with the first pin hole (222), a conical part (231) is formed at the lower end of the first lock pin (23), and a rotating part (232) is formed at the upper end of the first lock pin (23).

3. A foldable portable walker according to claim 1 wherein: the second lock pin (24) comprises a lifting part (241), a spline shaft (242) and a guide rod (243) which are integrally formed, a first spline hole (214) is formed in the inner wall of the lock tube (213) on the upper side, a second spline hole (215) and a guide hole (216) which are vertically arranged are formed in the inner wall of the lock tube (213) on the lower side, the lifting part (241) is pressed on the lock tube (213) on the upper side, the spline shaft (242) is inserted in the first spline hole (214) and the second spline hole (215), and the guide rod (243) is inserted in the guide hole (216).

4. A foldable portable walker according to claim 3 wherein: a stop block (244) is fixed at the lower extending end of the guide rod (243) passing through the guide hole (216), and a spring (245) is clamped between the stop block (244) and the lock tube (213) on the lower side.

5. A foldable portable walker according to claim 1 wherein: the supporting foot (3) comprises an inserting sleeve and an inserting sleeve (31) fixed at the port of the supporting tube (1), a long screw rod (32) is screwed in the inserting sleeve (31), the upper end of the long screw rod (32) extends into the supporting tube (1), a supporting part (33) is fixed at the lower end of the long screw rod (32), and a nylon pad (34) is fixed on the supporting part (33); the middle part of the long screw rod (32) is screwed with a knurled nut (35), and the knurled nut (35) is pressed on the plug bush (31).

6. A foldable portable walker according to claim 1 wherein: the both ends of support bar (4) respectively the shaping have slot (41) of downside open-ended, and slot (41) and the external diameter interference fit setting of upper end horizontal pole (12).

7. A foldable portable walker according to claim 6 wherein: a reinforcing rod (5) is fixed between a rear side pipe (11) of the supporting pipe (1) and a front side pipe (13) of the supporting pipe (1), and the other supporting rod (4) is inserted and sleeved on the two reinforcing rods (5).