CN111329728A

CN111329728A - Multi-foot crutch for orthopedic patients and use method

Info

Publication number: CN111329728A
Application number: CN202010155241.9A
Authority: CN
Inventors: 高芳军
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-11
Filing date: 2018-05-11
Publication date: 2020-06-26
Also published as: CN108852759B; CN108852759A

Abstract

The invention provides a multi-foot crutch for orthopedic patients and a using method thereof, relating to the field of medical treatment. The multi-foot crutch for the orthopedic patients comprises a support frame and a support rod arranged at the bottom of the support frame, wherein a foldable multi-leg supporting mechanism is arranged at the bottom of the support rod. Collapsible many legs supporting mechanism is including inside support base that is the cavity form, and fixed mounting has the baffle in the support base inner chamber, and the inside of supporting the base is provided with runs through the baffle and is supporting gliding hollow cylinder in the base inner chamber, is provided with the spring between baffle and the hollow cylinder, and the inner chamber bottom fixed mounting who supports the base has the stand, and the front and the both sides of supporting the base have all been seted up logical groove. According to the invention, by arranging the foldable multi-leg supporting mechanism, the supporting legs are retracted when the user removes the pressure, so that the problems of low stability and swinging between the front leg and the rear leg of the traditional multi-leg crutch when the traditional multi-leg crutch is used can be avoided even if the patient speeds up the step.

Description

Multi-foot crutch for orthopedic patients and use method

The invention relates to a divisional application of a multi-foot crutch for orthopedic patients, which is applied for 2018, 05, month and 11 and has the application number of CN 201810447163.2.

Technical Field

The invention relates to the technical field of medical treatment, in particular to a multi-foot crutch for orthopedic patients and a using method thereof.

Background

The crutch is a common auxiliary instrument in orthopedics department and is used for assisting a patient who affects normal walking due to bone damage to walk. A supporting point of the traditional crutch is in contact with the ground at the bottom of the crutch, the supporting point is a stress point when a patient walks, and the friction force at the position of the stress point is insufficient to cause slipping, so that the patient is injured and the condition of the patient is aggravated.

For this reason, there is a crutch which can increase stability by adding a supporting leg and prevent a patient from slipping, for example, in chinese patent No. 201420318710.4, a multi-leg crutch is disclosed, which can realize multi-point support by adding a supporting frame to the crutch based on the prior art, thereby ensuring safety in use.

However, on the premise of a great amount of experiments, the inventor finds that the multi-foot crutch can only be suitable for patients with slow pace, and when the pace of the user is fast, the front foot and the rear foot of the crutch swing to reduce the stability of the crutch, and meanwhile, the stability of the crutch can also be reduced when the road surface is not flat.

The scheme is developed to solve the problem of the complaint.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a multi-foot walking stick for orthopedic patients, which solves the problem that the front foot and the rear foot of the existing three-foot walking stick in the background art can swing when a user walks fast.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a multi-foot crutch for orthopedic patients comprises a support frame and a support rod at the bottom of the support frame, wherein a foldable multi-leg supporting mechanism is arranged at the bottom of the support rod.

Collapsible many legs supporting mechanism is including inside support base that is the cavity form, and fixed mounting has the baffle in the support base inner chamber, and the inside of supporting the base is provided with runs through the baffle and is supporting gliding hollow cylinder in the base inner chamber, is provided with the spring between baffle and the hollow cylinder, and the inner chamber bottom fixed mounting who supports the base has the stand, and the front and the both sides of supporting the base have all been seted up logical groove.

The front and the two sides of the hollow cylinder are both provided with angle adjusting mechanisms, supporting legs are fixedly mounted on the angle adjusting mechanisms, a hollow area which is cuboid and is provided with an opening at the top and the bottom is arranged at the center of the hollow cylinder, a driving gear is arranged inside the hollow cylinder, and the driving gear is in transmission connection with the angle adjusting mechanisms.

Toothed plates are bonded on the front side and the two sides of the stand column, the stand column is inserted into the inner cavity of the hollow cylinder, and the toothed plates are meshed with the driving gear.

Further, the through-hole has been seted up at the top of supporting the base, the bottom of bracing piece pass the through-hole and extend to the inner chamber of supporting the base in with the top welding of hollow cylinder, the edge integrated into one piece at the top of hollow cylinder has the flange around hollow cylinder lateral wall, the spring centers on the surface at hollow cylinder, and the spring setting is between flange and baffle.

Further, angle adjustment mechanism includes two semicircular metal sheets, is provided with the pivot between two metal sheets, and the opposite face swing joint of bearing and two metal sheets is passed through respectively at the both ends of pivot, and the fixed surface of pivot cup joints from the driving wheel, and the hollow cylinder is gone up to correspond the position from the driving wheel and has been seted up logical groove, passes logical groove and meshes with drive gear from the driving wheel, and the surface of pivot is and be located the fixed stabilizer blade that has cup jointed from one side of driving wheel.

Furthermore, the surface of stand and the slidable mounting who is located the pinion rack have the lifter plate, and the top of lifter plate sets firmly the latch that is provided with drive gear looks adaptation, and the surface of stand and the below fixed mounting that is located the lifter plate have the fixed plate, is provided with the flexible track of elasticity between lifter plate and the fixed plate.

Furthermore, the elastic telescopic track comprises a sleeve, a sliding rod and an elastic element, the sliding rod is inserted into the sleeve, the top of the sliding rod penetrates out of the sleeve, and the elastic element is arranged between the bottom of the inner wall of the sleeve and the bottom of the sliding rod.

Furthermore, the elastic element gasbag and the waist ring constitute, and the gasbag is hollow cylindric, and the equidistant setting of waist ring is on the inner wall of gasbag to the position department radius that corresponds the waist ring on the gasbag is less than the former radius of gasbag, has seted up the through-hole of syringe needle size on the lateral wall of gasbag.

Further, the ratio of the number of the clamping teeth on the driving gear to the number of the clamping teeth on the toothed plate and the driven gear is 1:2: 12.

Furthermore, the bottom of the supporting base is bonded with an anti-slip mat, and anti-slip salient points are integrally formed at the bottom of the anti-slip mat.

Further, the one end of stabilizer blade is fixed at the surface of pivot, and fixed mounting has ground grabbing mechanism on the orthogonal other end, and ground grabbing mechanism includes the trapezoidal piece, and the bottom of trapezoidal piece is provided with the connecting rod, and the both sides of connecting rod all are provided with the elasticity barb.

Further, the range of the hollow cylinder for lifting is 0-5 CM.

Furthermore, the rollers are arranged on the inner wall of the supporting base and positioned at the topmost end of the through groove opening, so that the supporting legs are prevented from being scratched at the sharp positions of the through groove wall.

Furthermore, the part of the top of the supporting frame for supporting the human body is arranged into a concave shape with a cambered surface, and the spongy cushion is arranged on the supporting frame, so that the comfort level of a user is improved.

The working principle is as follows: when this walking stick used, the user exerted pressure to the walking stick then can assist it to walk about, makes the supporting legs rotate through drive gear, rack and the cooperation from the driving wheel, and the supporting legs can stretch out from supporting the base during rotation to support, thereby avoid the phenomenon that the user emptys to appear using. And when the user removes the pressure to walk, the elastic force returned by the spring can enable the supporting legs to reversely rotate, so that the supporting legs enter the supporting base from the inside, and the phenomenon that the walking stick inclines due to the fact that the bottom of the walking stick slides on the ground due to the fact that the user exerts too much force can be avoided.

(III) advantageous effects

Compared with the prior art, the foldable multi-leg supporting mechanism is arranged, when the crutch is used, when a user applies great force, the supporting legs in the supporting base can be unfolded and are in contact with the ground, so that the problem that the walking stick tilts due to the fact that the bottom of the walking stick slides on the ground due to the fact that the user applies too much force is solved, the stability and the safety of the walking stick are improved, and the supporting legs are taken in when the user removes pressure, so that even if a patient speeds up steps, the problems that the front leg and the rear leg of the traditional multi-leg walking stick can swing and are low in stability when the traditional multi-leg walking stick is used can be solved.

According to the invention, the ground grabbing mechanism is arranged at the bottom of the supporting leg, and the elastic barb on the ground grabbing mechanism can be inserted into a road surface and fixed when the road surface is soft, so that the ground grabbing capacity of the ground grabbing mechanism is increased.

According to the invention, the partition plate is arranged, and the spring is arranged between the flange on the hollow cylinder and the partition plate, so that the hollow cylinder can be kept at a certain height under the action of the self stress of the spring under the condition of no external force, and the supporting legs are in a contracted state, so that the problem that the front leg and the rear leg of the multi-leg crutch swing when a user lifts the crutch is solved. And the crutch is more convenient to place and occupies less space.

According to the invention, the lifting plate is arranged, the latch matched with the driving gear is arranged at the top of the lifting plate, and after the latch of the driving gear is separated from the latch on the toothed plate, the latch can be contacted with the latch on the lifting plate, so that the driving gear is limited, the situation that the driving gear is reversed is avoided, the supporting legs are always kept at a certain angle, and the situation that the supporting legs are slipped and locked into the supporting base is avoided.

The lifting plate is supported by the fixing plate and the elastic telescopic rail, so that the lifting plate stops descending after descending to a certain height, and can be restored to the original position without external force.

Through setting up elastic element and providing elasticity for elastic expansion track to utilize the cooperation of slide bar and sheathed tube, thereby make the lifter plate more stable at the in-process of going up and down, the condition of deflecting can not take place. The elastic element adopts the cooperation of gasbag and waist ring, can guarantee the elasticity of elastic element to compare in the spring situation that can not appear vibrating after absorbing pressure by itself.

Drawings

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

FIG. 2 is a schematic structural view of the crutch of the present invention when not under stress;

FIG. 3 is a cross-sectional view of the collapsible multi-legged support mechanism configuration of the present invention;

FIG. 4 is a cross-sectional view of the hollow cylinder structure of the present invention;

FIG. 5 is a schematic view of the structure of the elastically stretchable rail according to the present invention;

fig. 6 is a schematic structural view of the ground-grasping mechanism of the present invention.

The device comprises a support frame 1, a support rod 2, a foldable multi-foot support mechanism 3, a support base 31, a partition plate 32, a hollow column 33, a vertical column 34, an angle adjusting mechanism 4, a metal plate 41, a rotating shaft 42, a driven wheel 43, a support foot 5, a driving gear 6, a toothed plate 7, a spring 8, a flange 9, a ground gripping mechanism 10, a trapezoidal block 101, a connecting rod 102, an elastic barb 103, a lifting plate 11, a fixing plate 12, an elastic telescopic rail 13, a sleeve 131, a sliding rod 132, an elastic element 133 and a non-slip mat 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2, 3 and 6, the embodiment of the invention provides a multi-leg crutch for orthopedic patients, which comprises a support frame 1 and a support rod 2 at the bottom of the support frame 1, wherein a foldable multi-leg support mechanism 3 is arranged at the bottom of the support rod 2.

Foldable many legs supporting mechanism 3 is including inside support base 31 that is the cavity form, and fixed mounting has baffle 32 in the support base 31 inner chamber, and the inside of supporting base 31 is provided with runs through baffle 32 and is supporting gliding hollow cylinder 33 in the base 31 inner chamber, is provided with spring 8 between baffle 32 and the hollow cylinder 33, and the inner chamber bottom fixed mounting who supports base 31 has stand 34, and the front and the both sides of supporting base 31 have all seted up logical groove.

The front and both sides of hollow cylinder 33 all are provided with angle adjustment mechanism 4, fixed mounting has supporting legs 5 on angle adjustment mechanism 4, the center department of hollow cylinder 33 has the cavity region that is the cuboid form and top and bottom are the opening form, the inside of hollow cylinder 33 is provided with drive gear 6, drive gear 6 is connected with angle adjustment mechanism 4 transmission, the welding has three groups of curb plates on the inner wall of hollow cylinder 33, three groups of curb plates set up respectively in the front and both sides of hollow cylinder 33 inner wall, there are two every group curb plates, movable mounting has the connecting axle between two curb plates, drive gear 6 fixed welding is on the connecting axle.

Toothed plates 7 are bonded on the front face and two sides of the upright column 34, the upright column 34 is inserted into the inner cavity of the hollow cylinder 33, and the toothed plates 7 are meshed with the driving gear 6.

The non-slip mat 14 is bonded to the bottom of the supporting base 31, non-slip bumps are integrally formed on the bottom of the non-slip mat 14, one end of each supporting leg 44 is fixed to the outer surface of the rotating shaft 42, the ground grabbing mechanism 10 is fixedly mounted at the other end of the right angle 44, the ground grabbing mechanism 10 comprises a trapezoidal block 101, a connecting rod 102 is arranged at the bottom of the trapezoidal block 101, and elastic barbs 103 are arranged on two sides of the connecting rod 102.

As shown in fig. 3, a through hole is opened at the top of the supporting base 31, the bottom end of the supporting rod 2 passes through the through hole and extends into the inner cavity of the supporting base 31 to be welded with the top end of the hollow cylinder 33, a flange 9 surrounding the side wall of the hollow cylinder 33 is integrally formed at the edge of the top of the hollow cylinder 33, a spring 8 surrounds the outer surface of the hollow cylinder 33, and the spring is arranged between the flange 9 and the partition 32.

As shown in fig. 4, the angle adjusting mechanism 4 includes two semicircular metal plates 41, a rotating shaft 42 is disposed between the two metal plates 41, two ends of the rotating shaft 42 are respectively movably connected to opposite surfaces of the two metal plates 41 through bearings, a driven wheel 43 is fixedly sleeved on an outer surface of the rotating shaft 42, a through groove is formed in a position of the hollow cylinder 33 corresponding to the driven wheel 43, the driven wheel 43 penetrates through the through groove and is meshed with the driving gear 6, and a supporting leg 44 is fixedly sleeved on one side of the outer surface of the rotating shaft 42 and located on the driven wheel 43.

As shown in fig. 4, a lifting plate 11 is slidably mounted on the outer surface of the upright column 34 and located on the toothed plate 7, a latch adapted to the driving gear 6 is fixedly disposed on the top of the lifting plate 11, a fixing plate 12 is fixedly mounted on the outer surface of the upright column 34 and located below the lifting plate 11, and an elastic telescopic rail 13 is disposed between the lifting plate 11 and the fixing plate 12.

As shown in fig. 5, the elastic telescopic rail 13 includes a sleeve 131, a sliding rod 132, and an elastic member 133, the sliding rod 132 is inserted into the sleeve 131, the top of the sliding rod 132 passes through the sleeve 131, and the elastic member 133 is disposed between the bottom of the inner wall of the sleeve 131 and the bottom of the sliding rod 132.

In use, as shown in fig. 1, when a user walks using the crutch, the crutch needs to support the user's body, when the gravity of the user is applied to the crutch, the support frame 1 transmits the pressure to the support rod 2 after bearing the pressure of the user, the support rod 2 moves downwards when bearing the pressure, the support rod 2 pushes the hollow column 33 to move downwards when moving downwards, when the hollow cylinder 33 moves downwards, the flange 9 will press the spring 8 in cooperation with the partition 32, so that the spring 8 is charged, and in the process of downward movement of the hollow cylinder 33, the driving gear 6 arranged in the inner cavity of the hollow cylinder 33 will contact with the toothed plate 7 arranged on the upright column 34, so that the driving gear 6 rotates, the driving gear 6 is meshed with the driven wheel 43, and the driving gear 6 drives the driven wheel 43 to rotate, wherein the ratio of the number of the clamping teeth on the driving gear 6 to the number of the clamping teeth on the toothed plate 7 and the driven wheel 43 is 1:2: 12. When the driving gear 6 is disengaged from the tooth plate 7, the driving gear 6 rotates by an angle of 720 °, and the driven gear 43 rotates by an angle of 60 °. When the driven wheel 43 rotates 60 degrees, the driven wheel 43 drives the rotating shaft 42 to rotate, so that the supporting foot 5 rotates 60 degrees and penetrates out of the supporting base 31, the included angle between the supporting foot 5 and the supporting base 31 is 60 degrees, and the supporting foot 5 cannot contact with the ground after penetrating out of the supporting base 31, the hollow cylinder 33 which continues to move downwards drives the supporting foot 5 to move downwards, so that the supporting foot 5 contacts with the ground, and after the driving gear 6 is separated from the toothed plate 7, the bottom of the driving gear 6 contacts with the latch at the top of the lifting plate 11, so as to limit the driving gear 6, the driving gear 6 cannot rotate, so that the supporting foot 5 can be ensured to always keep the 60-degree inclined angle, and after the driving gear 6 extrudes the lifting plate 11, so that the lifting plate 11 extrudes the elastic telescopic rail 13, so that the elastic telescopic rail 13 accumulates force, and the supporting foot 5 at 60 degrees contacts with, the support base 31 can be made more stable. And because the ground grabbing mechanism 10 is arranged at the bottom of the supporting foot 31, the elastic barb 103 on the ground grabbing mechanism 10 can increase the ground grabbing capacity of the supporting foot 31, and when soft ground is met, the elastic barb 103 can be inserted into the soil.

When the user removes pressure and walks forward, at first, hollow cylinder 33 can be lifted up to the elasticity of spring 8, and hollow cylinder 33 lifts up the back, can lead to following the reverse rotation of driving wheel 43 under the cooperation of drive gear 6 and pinion rack 7, can make supporting legs 5 take in the inside of supporting base 31 again when following the reverse rotation of driving wheel 43, avoids the user to take place to sway around supporting legs 5 when the walking, leads to the stability of walking stick to reduce.

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. The utility model provides a patient of orthopedics is with multi-legged walking stick, includes bracing piece (2) of support frame (1) and support frame (1) bottom, its characterized in that: the bottom of the supporting rod (2) is provided with a foldable multi-leg supporting mechanism (3); the foldable multi-leg supporting mechanism (3) comprises a supporting base (31) with a hollow interior, a partition plate (32) is fixedly installed in the inner cavity of the supporting base (31), a hollow cylinder (33) which penetrates through the partition plate (32) and slides in the inner cavity of the supporting base (31) is arranged in the supporting base (31), a spring (8) is arranged between the partition plate (32) and the hollow cylinder (33), an upright column (34) is fixedly installed at the bottom of the inner cavity of the supporting base (31), and through grooves are formed in the front face and two sides of the supporting base (31); the front and two sides of the hollow cylinder (33) are provided with angle adjusting mechanisms (4), the angle adjusting mechanisms (4) are fixedly provided with supporting legs (5), the center of the hollow cylinder (33) is provided with a hollow area which is cuboid and the top and the bottom of which are open, a driving gear (6) is arranged inside the hollow cylinder (33), and the driving gear (6) is in transmission connection with the angle adjusting mechanisms (4); toothed plates (7) are bonded on the front surface and two sides of the upright column (34), the upright column (34) is inserted into the inner cavity of the hollow cylinder (33), and the toothed plates (7) are meshed with the driving gear (6);

the top of the supporting base (31) is provided with a through hole, the bottom end of the supporting rod (2) penetrates through the through hole and extends into the inner cavity of the supporting base (31) to be welded with the top end of the hollow cylinder (33), a flange (9) surrounding the side wall of the hollow cylinder (33) is integrally formed at the edge of the top of the hollow cylinder (33), a spring (8) surrounds the outer surface of the hollow cylinder (33), and the spring is arranged between the flange (9) and the partition plate (32);

the angle adjusting mechanism (4) comprises two semicircular metal plates (41), a rotating shaft (42) is arranged between the two metal plates (41), two ends of the rotating shaft (42) are respectively movably connected with opposite surfaces of the two metal plates (41) through bearings, a driven wheel (43) is fixedly sleeved on the outer surface of the rotating shaft (42), a through groove is formed in the hollow cylinder (33) corresponding to the driven wheel (43), the driven wheel (43) penetrates through the through groove and is meshed with the driving gear (6), and a supporting leg (44) is fixedly sleeved on the outer surface of the rotating shaft (42) and positioned on one side of the driven wheel (43);

the outer surface of stand (34) and the slidable mounting who is located pinion rack (7) have lifter plate (11), and the top of lifter plate (11) sets firmly the latch that is provided with drive gear (6) looks adaptation, and the below fixed mounting that the outer surface of stand (34) is located lifter plate (11) has fixed plate (12), is provided with elastic telescopic rail (13) between lifter plate (11) and fixed plate (12).

2. The multi-foot crutch for orthopedic patients of claim 1, characterized in that: the elastic telescopic rail (13) comprises a sleeve (131), a sliding rod (132) and an elastic element (133), the sliding rod (132) is inserted into the sleeve (131), the top of the sliding rod (132) penetrates out of the sleeve (131), and the elastic element (133) is arranged between the bottom of the inner wall of the sleeve (131) and the bottom of the sliding rod (132).

3. The multi-foot crutch for orthopedic patients of claim 1, characterized in that: the ratio of the number of the clamping teeth on the driving gear (6) to the number of the clamping teeth on the toothed plate (7) and the driven gear (43) is 1:2: 12.

4. The multi-foot crutch for orthopedic patients of claim 1, characterized in that: the bottom of the supporting base (31) is bonded with the anti-slip mat (14), and anti-slip bumps are integrally formed at the bottom of the anti-slip mat (14).

5. The multi-foot crutch for orthopedic patients of claim 1, characterized in that: one end of the supporting foot (44) is fixed on the outer surface of the rotating shaft (42), the other end of the right angle (44) is fixedly provided with the ground grabbing mechanism (10), the ground grabbing mechanism (10) comprises a trapezoidal block (101), the bottom of the trapezoidal block (101) is provided with a connecting rod (102), and two sides of the connecting rod (102) are provided with elastic barbs (103).

6. The multi-foot crutch for orthopedic patients and the use method thereof as claimed in any one of claims 1-5, wherein: when the crutch is used, when a user walks by using the crutch, the crutch needs to support the body of the user, when the gravity of the user is applied to the crutch, the support frame (1) transmits pressure to the support rod (2) after bearing the pressure of the user, the support rod (2) moves downwards when bearing the pressure, the support rod (2) pushes the hollow cylinder (33) to move downwards when moving downwards, when the hollow cylinder (33) moves downwards, the flange (9) can be matched with the partition plate (32) to extrude the spring (8), so that the spring (8) stores force, and in the process of moving downwards of the hollow cylinder (33), the driving gear (6) arranged in the inner cavity of the hollow cylinder (33) can be in contact with the toothed plate (7) arranged on the upright column (34), so that the driving gear (6) rotates, the driving gear (6) is meshed with the driven wheel (43), so that the driving gear (6) drives the driven wheel (43) to rotate, the ratio of the number of the clamping teeth on the driving gear (6) to the number of the clamping teeth on the toothed plate (7) and the driven wheel (43) is 1:2:12, when the driving gear (6) is separated from the toothed plate 7), the rotating angle of the driving gear (6) is 720 degrees, and the rotating angle of the driven wheel (43) is 60 degrees. When the driven wheel (43) rotates for 60 degrees, the driven wheel (43) can drive the rotating shaft (42) to rotate, so that the supporting feet (5) rotate for 60 degrees and penetrate out of the supporting base (31), the included angle between the supporting feet (5) and the supporting base (31) is 60 degrees, the supporting feet (5) can not contact with the ground after penetrating out of the supporting base (31), the hollow cylinder (33) which continuously moves downwards can drive the supporting feet (5) to move downwards, so that the supporting feet (5) can contact with the ground, and after the driving gear (6) is separated from the toothed plate (7), the bottom of the driving gear (6) is in contact with the clamping teeth at the top of the lifting plate (11), so that the driving gear (6) is limited, the driving gear (6) can not rotate, the supporting feet (5) can be ensured to always keep an inclination angle of 60 degrees, and the driving gear (6) can extrude the lifting plate (11), therefore, the lifting plate (11) extrudes the elastic telescopic rail (13), the elastic telescopic rail (13) stores the force, and the supporting base (31) can be more stable after the supporting legs (5) with 60 degrees contact with the ground. Due to the ground grabbing mechanism (10) arranged at the bottom of the supporting foot (31), the elastic barb (103) on the ground grabbing mechanism (10) can increase the ground grabbing capacity of the supporting foot (31), and when the ground is soft, the elastic barb (103) can be inserted into soil;

when the user removes pressure and walks forward, at first, the elasticity of spring (8) can lift up hollow cylinder (33), and hollow cylinder (33) lifts up the back, can lead to following reverse rotation of driving gear (6) and pinion rack (7) under the cooperation, can make supporting legs (5) take in the inside of supporting base (31) again when following reverse rotation of driving gear (43), avoids the user to take place to sway around supporting legs (5) when the walking, leads to the stability of walking stick to reduce.