A kind of anti-overturning walking aid with mode switching for coping with multiple types of roads

Abstract

The application discloses a kind of anti-toppling walking aids with mode switching to multiple types of road, it is related to anti-toppling walking aid technical field, including front wheel frame, rear wheel frame, brake mechanism, front wheel and rear wheel, the top side of front wheel frame is symmetrical and installed with rear wheel frame;The application is first pulled back to ball column, so that ball column drives first special-shaped tooth pattern plate to rotate, and contact is pushed in the slide way slider block tooth plate and tooth cover one side, then by manually rotating ball column, so that the second special-shaped tooth pattern plate in the clamping groove drives tooth plate to slide left and right on the top of slider block, by the rotation of tooth cover and second tooth shaft, drive third tooth shaft, fourth tooth shaft and threaded tooth column overall rotation, finally drive threaded fixing block on sleeve to move on threaded tooth column, so that the overall length of front wheel frame and sleeve changes, by adjusting the height of front wheel in the front end of entire front wheel frame, to realize entire walking aid to respond different angle road surface walking, improve the motion stability of entire walking aid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anti-toppling walking aids, in particular to an anti-toppling walking aid capable of mode switching in response to multiple types of roads. BACKGROUND

[0002] A walking aid is a device that can support the user through the support of the instrument, allowing the elderly and patients with inconvenient legs and feet, and even people who have lost the ability to walk, to self-care devices that can support body weight and facilitate users to stand or walk. It has a large support area and good stability, and can help users to go out for a walk like normal people

[0003] There are many types of walking aids. Common walking aids are divided into hand-held mobile types, which are mostly composed of hollow steel pipes. The overall weight is relatively light, but the disadvantages are also relatively obvious. Long-term use increases the fatigue of the user's arms. Another type is a roller moving type. This type of walking aid is usually used for users whose legs are in a recovery state and are inconvenient to move. At this time, the entire walking aid needs to support the user as a whole, and the roller helps the user to move. Usually, the height of this type of walking aid can be adjusted, but the increase in the height of the walking aid reduces the overall risk resistance of the walking aid when it encounters bad road conditions.

[0004] Therefore, we propose an anti-toppling walking aid capable of mode switching in response to multiple types of roads. SUMMARY

[0005] The purpose of the present application is to provide an anti-toppling walking aid capable of mode switching in response to multiple types of roads to solve the problem of low risk resistance of the walking aid in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] The present application discloses an anti-toppling walking aid capable of mode switching in response to multiple types of roads, comprising a front wheel frame, a rear wheel frame, a brake mechanism, a front wheel and a rear wheel. The top of the front wheel frame is provided with a brake mechanism, and the bottom of the front wheel frame is provided with a front wheel. The top of the rear wheel frame is hinged to the front wheel frame to form a main shaft frame. The bottom of the rear wheel frame is provided with a rear wheel. Its characteristics are that a storage box is installed between the main shaft frames on both sides, and an adjusting mechanism is installed on the inner wall of one side of the storage box.

[0008] The adjusting mechanism comprises a semicircular shell, a movable slot, a ball column, a first profiled tooth plate and a second profiled tooth plate, the inner wall of one side of the storage box is fixed with the semicircular shell through bolts, and the movable slot is arranged on the semicircular shell; the ball column is movably connected in the semicircular shell, and penetrates through the movable slot and is movably connected with the movable slot at one end of the ball column; the bottom of the ball column is provided with a clamping groove, and the second profiled tooth plate is clamped in the clamping groove; the first profiled tooth plate is movably connected to one side of the storage box, and is movably connected to one side of the ball column.

[0009] Further, the bottom inner wall of the storage box is provided with a slide, and the slide is movably connected in the slide; the top of the slide is symmetrically provided with a tooth plate; the bottom of the storage box is symmetrically movably connected with a tooth sleeve, and the first tooth shaft is movably connected in the tooth sleeve; the inner wall of the front wheel frame is movably connected with a second tooth shaft through a bearing; the inner wall of the rear wheel frame is movably connected with a fifth tooth shaft through a bearing.

[0010] Further, one end of the second tooth shaft is meshed with the tooth sleeve, one end of the first tooth shaft is meshed with the fifth tooth shaft, and the bottom of the first profiled tooth plate is meshed with the top of the slide.

[0011] Further, the sleeve is fixedly connected with the support of the front wheel or the rear wheel; the outer wall of the sleeve is movably connected with the inner wall of the front wheel frame or the rear wheel frame; the inner wall of the sleeve is fixedly connected with a threaded fixing block through spot welding; the inner wall of the front wheel frame is movably connected with a threaded tooth column through a bearing, and the threaded tooth column penetrates through the threaded fixing block and is threadedly connected with the threaded fixing block at one end of the threaded tooth column; the inner wall of the front wheel frame or the rear wheel frame is movably connected with a fourth tooth shaft at the top of the threaded tooth column; one side of the fourth tooth shaft is meshed with the threaded tooth column; the third tooth shaft is movably connected with the fourth tooth shaft at the top of the fourth tooth shaft in the front wheel frame or the rear wheel frame; the third tooth shaft is meshed with the fourth tooth shaft; one side of the third tooth shaft is meshed with the second tooth shaft or the fifth tooth shaft.

[0012] Further, the top of the storage box is fixedly connected with a cushion through bolts; the backrest is arranged on the top of the cushion of the rear wheel frame; the pressing plate is rotatably connected to one side of the main shaft frame; the locking shell is fixedly connected to one side of the main shaft frame through bolts; the storage cavity is symmetrically arranged on one side of the storage box.

[0013] Further, the inner wall of the locking shell is movably connected with a rotating sleeve through a bearing, a second cam is fixedly arranged on the outer wall of the rotating sleeve, a first cam is movably arranged on the opposite surface of the locking shell and connected with the rotating sleeve, a foot pressure pattern plate is fixedly arranged on one side of the first cam, the foot pressure pattern plate is rotatably arranged on the side of the locking shell, a first spring is arranged on the inner wall of the locking shell and connected with one end of the second cam, a supporting column is slidably arranged in the locking shell and at the bottom of the second cam, and a second spring is fixedly arranged on the outer wall of the supporting column.

[0014] Further, the switching method of the anti-toppling walking aid device with mode switching for multiple types of roads comprises the following steps:

[0015] Step one: single side height switching adjustment of the walking aid device, for the adjustment of the front wheel height, first pull the ball column in the storage box backward, the ball column rotates to the rear side while pushing the slider in the slide way forward, so that the top side tooth plate of the slider is engaged with the side of the tooth sleeve, at this time, rotate the ball column to the other side to drive the tooth sleeve, the tooth sleeve drives the second tooth shaft to rotate, and the second tooth shaft drives the third tooth shaft to rotate through the rotation of the second tooth shaft, and finally the fourth tooth shaft drives the threaded tooth column to rotate;

[0016] The rotation of the threaded tooth column causes the threaded fixed block connected by threads to drive the sleeve to move outward in the front wheel frame, the length of the front wheel frame and the sleeve increases, resulting in an increase in the overall height of the front wheel, for the operation of reducing the height of the front wheel and the sleeve, only need to rotate the ball column backward at the same time, and rotate to the other side, so as to realize the length reduction operation of the entire front wheel and the sleeve;

[0017] Step two: overall height adjustment of the walking aid device, first push the entire ball column forward, causing the ball column to rotate while driving the slider to move backward, so that the front end tooth plate of the slider is engaged with the first tooth shaft at the end of the tooth sleeve, at this time, rotate the ball column to the side, the front end tooth plate moves to the side while driving the first tooth shaft to rotate, the first tooth shaft drives the fifth tooth shaft to rotate, as known from step one, the third tooth shaft can drive the entire sleeve to elongate, and one end of the rear wheel frame is connected to the side of the sleeve structure same as the tooth sleeve, so that the fifth tooth shaft can realize the height adjustment of the rear wheel frame.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] 1、The present application, by first pulling the ball column back to make the ball column drive the first special-shaped tooth plate to rotate, and push the sliding block tooth plate in the slide to contact with the one side of the tooth sleeve, then rotate the ball column manually to make the second special-shaped tooth plate in the clamping groove drive the tooth plate to slide left and right on the top of the sliding block, so as to cause the whole tooth sleeve to rotate in the front wheel frame, through the rotation of the tooth sleeve and the second tooth shaft, drive the third tooth shaft, the fourth tooth shaft and the threaded tooth column to rotate as a whole, finally drive the threaded fixing block on the sleeve to move on the threaded tooth column, so as to cause the overall length of the front wheel frame and the sleeve to change, by adjusting the height of the front wheel at the front end of the whole front wheel frame, to realize the whole walking aid to cope with different angle road, improve the motion stability of the whole walking aid, at the same time, by pushing the whole ball column to rotate left and right, finally realize the height adjustment of the rear wheel frame of the whole walking aid, convenient for users of different heights to use the whole walking aid;

[0020] 2、The present application, by using the user to step on the pedal on the surface of the rotating sleeve, make the second cam on the surface of the rotating sleeve rotate and push out the support column in the whole locking shell, complete the locking of the whole rear wheel of the walking aid, convenient for the user to lock the whole walking aid, cooperate with the seat cushion and backrest on the top of the storage box, convenient for the user to fix and rest the walking aid, at the same time, the pressing plate installed on the front wheel frame makes the whole walking aid walk on the muddy road, after the support of the pressing plate to the front wheel frame, the front wheel and the rear wheel will not sink into the soil. DRAWINGS

[0021] Figure 1 The whole structure schematic diagram of the anti-toppling walking aid with mode switching for coping with multiple types of roads of the present application;

[0022] Figure 2 The whole structure schematic diagram of the adjusting mechanism of the present application;

[0023] Figure 3 The storage box bottom inner wall section view structure schematic diagram of the present application;

[0024] Figure 4 The A structure enlarged schematic diagram of the present application; Figure 2

[0025] Figure 5 The storage box side view structure schematic diagram of the present application;

[0026] Figure 6 The sleeve and front wheel frame connection section view structure schematic diagram of the present application;

[0027] Figure 7 The locking shell section view structure schematic diagram of the present application.

[0028] ​In the figure: 1, front wheel frame; 2, rear wheel frame; 3, brake mechanism; 4, storage box; 5, cushion; 6, backrest; 7, front wheel; 8, pressing plate; 9, locking shell; 10, rear wheel; 11, adjusting mechanism; 111, semicircular shell; 112, movable slot; 113, ball column; 114, clamping groove; 115, first special-shaped toothed plate; 116, second special-shaped toothed plate; 12, storage cavity; 13, sliding way; 14, sliding block; 15, toothed plate; 16, toothed sleeve; 17, first toothed shaft; 18, second toothed shaft; 19, sleeve; 20, third toothed shaft; 21, fourth toothed shaft; 22, threaded toothed column; 23, threaded fixing block; 24, fifth toothed shaft; 25, rotating sleeve; 26, foot pressing plate; 27, first cam; 28, second cam; 29, first spring; 30, supporting column; 31, second spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-7 , the present application provides a technical solution:

[0031] Embodiment 1:

[0032] There are various types of walking aids. Common walking aids are divided into hand-held mobile types, which are mostly composed of hollow steel pipes and are relatively light in whole, but have obvious shortcomings, such as being difficult to use. Another type is the rolling wheel mobile type. Usually, such walking aids are for users whose legs are in a recovery state and are inconvenient to move. At this time, the whole walking aid needs to support the user as a whole and assist the user to move through the rolling wheels. Usually, the height of such walking aids can be adjusted, but the increase in the height of the walking aid leads to a decrease in the overall risk resistance of the walking aid when it is used on poor road conditions. The anti-toppling walking aid device involved in the present application can switch between the two common walking aids and also can adjust the front and rear height of the walking aid.

[0033] Before use, if the front and rear lifting angles of the walking aid need to be adjusted, as shown in Figure 1 , the same size front wheels 7 and rear wheels 10 are symmetrically installed on both sides of the front wheel frame 1 and the rear wheel frame 2, and the storage box 4 is fixed on the bracket between the left and right main shaft frames through bolts. The storage box 4 has a storage cavity 12 inside for placing articles, and the adjusting mechanism 11 for adjusting the walking aid is installed in the storage box 4. Figure 2 and Figure 5As shown, a semi-circular shell 111 is bolted to the operable surface of the storage box 4, and an "I"-shaped movable groove 112 is provided on the semi-circular shell 111. A ball column 113, movably embedded within the semi-circular shell 111, passes through the movable groove 112 and is slidably connected to it. The user can rotate the ball column 113 within the semi-circular shell 111. A first irregularly shaped toothed plate 115 is movably connected to the surface of the ball column 113 within the semi-circular shell 111. One side of the first irregularly shaped toothed plate 115 extends from the corresponding side of the center of the ball column 113 and is movably connected to one side of the storage box 4. A slot 114 is provided at the bottom of the ball column 113, and one side of a second irregularly shaped toothed plate 116 movably connected within the storage box 4 engages with the slot 114. Figure 2 As shown, when the ball column 113 is pulled backward, the ball column 113 rotates and drives the first irregular toothed plate 115 to rotate counterclockwise. At this time, one side of the second irregular toothed plate 116 is engaged in the slot 114 and remains stationary along the slot 114 when the ball column 113 rotates. At this time, the ball column 113 in the left and right movable slot 112 moves left and right. Since one side of the first irregular toothed rod is movably connected to the surface of the ball column 113, the first irregular toothed rod remains stationary. The left and right movement of the ball column 113 will cause the second irregular toothed plate 116 in the slot 114 to sway left and right.

[0034] Therefore, based on the above operating principle, when it is necessary to adjust the relative height between the front wheel 7 and the rear wheel 10 of the entire walking aid, first pull the ball column 113 backward, causing the first irregular toothed plate 115 to rotate, while simultaneously coordinating with... Figure 2 and Figure 3 It can be seen that a slider 14 is slidably connected within the slide rail 13 on the bottom inner wall of the storage box 4. One side of the top of the slider 14 has teeth, and toothed plates 15 are symmetrically slidably connected to the slider 14. However, the opposite surfaces of both toothed plates 15 have teeth, such as... Figure 4 It can be seen that the side teeth of the two toothed plates 15 are not on the same horizontal line, with the left side lower than the right. The bottom arc-shaped teeth of the first irregular toothed plate 115 mesh with the top teeth of the slider 14. When the entire first irregular toothed plate 115 rotates counterclockwise, it will push the right side of the slide. At this time, the top of the toothed plate 15 on the left side of the slider 14 will contact the second irregular toothed plate 116. At the same time, the side teeth of the toothed plate 15 will also contact the toothed sleeve 16 on the bottom inner wall of the storage box 4. When the ball column 113 is shaken left and right, the toothed plate 15 will also rotate left and right under the rotation of the second irregular toothed plate 116, thus causing the toothed sleeve 16 to rotate left and right. Figure 4 As shown, when the entire gear sleeve 16 rotates to one side, the other side of the gear sleeve 16 is located inside the front wheel frame 1. A second gear shaft 18 is movably connected within the entire front wheel frame 1 and located on one side of the gear sleeve 16. When the gear sleeve 16 rotates, the second gear shaft 18 also rotates, as shown... Figure 6As shown, the front wheel 7 at the front end of the front wheel frame 1 is fixed on the sleeve 19, and is in sliding connection with the front wheel frame 1 on one side of the sleeve 19. However, since the threaded fixing block 23 is fixed in the sleeve 19, the threaded tooth column 22 movably connected in the front wheel frame 1 penetrates the threaded fixing block 23 at one end and is in threaded connection with the threaded fixing block 23. The second tooth shaft 18 is in meshing connection with the third tooth shaft 20 at one end, and the fourth tooth shaft 21 is in meshing connection with the third tooth shaft 20 at one end. The rotation of the fourth tooth shaft 21 drives the threaded tooth column 22 in meshing connection with the fourth tooth shaft 21 to rotate, thereby causing the entire threaded tooth column 22 to rotate. The sleeve 19 with the threaded fixing block 23 is telescopic in the front wheel frame 1, so that the height of the entire walker front wheel 7 can be adjusted, and the entire walker can be adjusted forward and backward, which is convenient for the user to push the walker to move on roads with different slopes. The height adjustment of the front wheel 7 improves the stability of the walker moving on roads with different slopes.

[0035] When the user pushes the ball column 113 forward, the first special-shaped toothed plate 115 drives the sliding plate to move backward, so that the front end tooth plate 15 of the sliding plate is in contact with the first tooth shaft 17. When the ball column 113 is shaken left and right, the second special-shaped toothed plate 116 drives the tooth plate 15 to move left and right, and finally the first tooth shaft 17 drives the fifth tooth shaft 24 in the rear wheel frame 2 to rotate. Since the rear wheel frame 2 adopts the same sleeve transmission structure as the front wheel frame 1, the length of the sleeve 19 connected to the rear wheel frame 2 increases after the entire fifth tooth shaft 24 rotates, thereby adjusting the height of the rear wheel 10. By adjusting the front wheel and the rear wheel in sequence, the overall height of the walker can be adjusted, which is beneficial for operators of different heights to use.

[0036] By manually shaking the ball column 113, the overall height of the walker and the height of the front roller can be adjusted, and the user's arm can be exercised at the same time.

[0037] Embodiment 2:

[0038] For the storage box 4 mounted on the entire main shaft frame, a seat cushion 5 is arranged on the top of the storage box 4, and a backrest 6 is arranged on the main shaft frame, which is convenient for the user to sit on the walker to rest. In order to prevent the entire walker from moving as a whole, a brake mechanism 3 is arranged at the handle of the entire main shaft frame, and a locking shell 9 is arranged at the rear wheel 10, as shown. Figure 7 As shown, the entire locking shell 9 is movably connected with a rotating sleeve 25, and the rotating sleeve 25 penetrates the locking shell 9 on one side and is connected with one side of the main shaft frame. The entire rotating sleeve 25 is sleeved with a pressing plate 8, and the entire pressing plate 8 can rotate. When the user pushes the walker to a muddy road, the pressing plate 8 can be placed down, and the pressing plate 8 is in floating arrangement. When the front and rear wheels 10 of the walker sink into the mud, the entire pressing plate 8 can increase the contact area between the walker and the ground, so as to avoid the walker sinking deeper.

[0039] Meanwhile, in order to lock the whole walker, the second cam 28 is rotated when the pressing plate 8 rotates on the rotating sleeve 25, and the second cam 28 pushes the support column 30 in the locking shell 9 downward after rotating, so that the support column 30 supports the rear wheel 10 of the whole walker, the second cam 28 is provided with a recessed groove, and the support column 30 is provided with a protrusion, the protrusion is clamped with the recessed groove, the fixing operation of the whole support column 30 is completed, the first cam 27 is movably connected in the locking shell 9 and located at one side of the rotating sleeve 25, the longest distance from the center to the edge of the first cam 27 is greater than that of the second cam 28, the foot pressing plate 26 is fixed on one side of the second cam 28, and the foot pressing plate 26 penetrates through the locking shell 9 and is slidably connected with the locking shell 9, when the user wants to retract the support column 30, the user steps on one side of the foot pressing plate 26, at this time, the first cam 27 starts to rotate, the first cam 27 continues to push the support column 30 downward, at this time, the second cam 28 starts to rotate under the action of the first spring 29, and the user stops pressing the foot pressing plate 26, the second spring 31 sleeved outside the support column 30 supports the whole support column 30, and the retraction work of the whole support column 30 is completed, and the rear wheel 10 of the walker is supported and fixed by the support column 30, so that the user can be seated conveniently.

[0040] The above content is only an example and description of the structure of the present application, and those skilled in the art can make various modifications or supplements or replace with similar ways, as long as the structure of the application is not deviated or beyond the scope defined by the claims.

[0041] In the description of the present application, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present application. The embodiments are selected and described in the present application in order to better explain the principles and practical application of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A kind of anti-overturning walking aid with mode switching to cope with multiple types of road, comprising front wheel frame (1), rear wheel frame (2), brake mechanism (3), front wheel (7) and rear wheel (10), brake mechanism (3) is installed on the top of the front wheel frame (1), the bottom of the front wheel frame (1) is installed with front wheel (7), the top of the rear wheel frame (2) is hinged on the front wheel frame (1), and constitutes the main shaft frame;The bottom of the rear wheel frame (2) is installed with rear wheel (10) and is characterized by: The storage box (4) is installed between the main shaft supports on both sides, and an adjusting mechanism (11) is installed on the inner wall of one side of the storage box (4); The adjusting mechanism (11) comprises a semicircular shell (111), a movable groove (112), a ball column (113), a first special-shaped toothed plate (115) and a second special-shaped toothed plate (116), one side of the inner wall of the storage box (4) is fixedly provided with the semicircular shell (111) through bolts, a movable groove (112) is formed in the semicircular shell (111), the ball column (113) is movably connected in the semicircular shell (111), one end of the ball column (113) penetrates through the movable groove (112) and is slidably connected with the movable groove (112), a clamping groove (114) is formed in the bottom of the ball column (113), the second special-shaped toothed plate (116) is clamped in the clamping groove (114), one side of the first special-shaped toothed plate (115) is movably connected with one side of the ball column (113); A slide (13) is formed in the bottom inner wall of the storage box (4), a sliding block (14) is slidably connected in the slide (13), the top of the sliding block (14) is symmetrically provided with a toothed plate (15), the bottom of the storage box (4) is symmetrically movably connected with a toothed sleeve (16), the first tooth shaft (17) is movably connected in the toothed sleeve (16), the inner wall of the front wheel support (1) is movably connected with the second tooth shaft (18) through a bearing, the inner wall of the rear wheel support (2) is movably connected with the fifth tooth shaft (24) through a bearing; One end of the second tooth shaft (18) is meshingly connected with the toothed sleeve (16), one end of the first tooth shaft (17) is meshingly connected with the fifth tooth shaft (24), the bottom of the first special-shaped toothed plate (115) is meshingly connected with the top of the sliding block (14); One side of the front wheel support (1) and the rear wheel support (2) is provided with a sleeve (19), the sleeve (19) is fixedly connected with the support of the front wheel (7) or the rear wheel (10), the outer wall of the sleeve (19) is slidably connected with the inner wall of the front wheel support (1) or the rear wheel support (2), the inner wall of the sleeve (19) is fixedly provided with a threaded fixing block (23) through spot welding, the inner wall of the front wheel support (1) is movably connected with a threaded tooth column (22) through a bearing, one end of the threaded tooth column (22) penetrates through the threaded fixing block (23) and is threadedly connected with the threaded fixing block (23), the inner wall of the front wheel support (1) or the rear wheel support (2) is movably connected with a fourth tooth shaft (21) through the top of the threaded tooth column (22), one side of the fourth tooth shaft (21) is meshingly connected with the threaded tooth column (22), the inner wall of the front wheel support (1) or the rear wheel support (2) is movably connected with a third tooth shaft (20) through the top of the fourth tooth shaft (21), the third tooth shaft (20) is meshingly connected with the fourth tooth shaft (21), one side of the third tooth shaft (20) is meshingly connected with the second tooth shaft (18) or the fifth tooth shaft (24).

2. The anti-toppling walking aid with mode switching for coping with multiple types of roads according to claim 1, characterized in that: The top of the storage box (4) is fixed with a cushion (5) through bolts, the backrest (6) is installed on the rear wheel frame (2) and located on the top of the cushion (5), the main shaft frame is rotatably connected with a pressing plate (8) on one side, the main shaft frame is fixed with a locking shell (9) on one side and located on one side of the front wheel (7) through bolts, and the storage box (4) is symmetrically provided with a storage cavity (12) on one side.

3. The anti-toppling walking aid with mode switching for coping with multiple types of roads according to claim 2, characterized in that: The inner wall of the locking shell (9) is movably connected with a rotating sleeve (25) on one side, and the second cam (28) is fixedly arranged on the outer wall of the rotating sleeve (25). The first cam (27) is movably connected with the rotating sleeve (25) and the locking shell (9) on the opposite side, and the foot pressure pattern plate (26) is fixedly arranged on one side of the first cam (27). The foot pressure pattern plate (26) is rotatably connected with the locking shell (9) on one side, and the first spring (29) is arranged on the inner wall of the locking shell (9) on one side. The second spring (31) is fixedly arranged on the outer wall of the support column (30) and located at the bottom of the second cam (28) in the locking shell (9).

4. The anti-toppling walking aid with mode switching for coping with multiple types of roads according to claim 3, characterized in that: The anti-falling walking aid device switching method for coping with multiple types of roads includes the following steps: Step one: one side height switching adjustment of the walking aid device, for the height adjustment of the front wheel (7), first pull the ball column (113) in the storage box (4) to the rear, the ball column (113) rotates to the rear side while pushing the slider (14) in the slide (13) to the front, so that the tooth plate (15) on the top side of the slider (14) is engaged with the side of the tooth sleeve (16), at this time, rotate the ball column (113) to the side to drive the tooth sleeve (16) to rotate, the tooth sleeve (16) drives the second gear shaft (18) to rotate, and the third gear shaft (20) is driven to rotate through the second gear shaft (18), and finally the fourth gear shaft (21) drives the threaded tooth column (22) to rotate; The threaded tooth column (22) rotates to make the threaded fixed block (23) connected by threads start to drive the sleeve (19) to move outward in the front wheel frame (1) as a whole, the length of the front wheel frame (1) and the sleeve (19) increases, resulting in the overall height of the front wheel (7) increasing, for the height reduction operation of the front wheel (7) and the sleeve (19), only need to rotate the ball column (113) to the rear side at the same time, that is, the length of the whole front wheel (7) and the sleeve (19) can be reduced. Step two: the overall height adjustment of the walking aid, first push the entire ball cylinder (113) forward, causing the ball cylinder (113) to rotate while driving the slider (14) to move backward, so that the front end of the slider (14) tooth plate (15) and the first tooth shaft (17) end of the tooth sleeve (16) meshing connection, at this time, turn the ball cylinder (113) to one side, the front end of the tooth plate (15) moves to one side while driving the first tooth shaft (17) to rotate, the first tooth shaft (17) rotates to drive the fifth tooth shaft (24) to rotate, as known from step one, the third tooth shaft (20) rotates to drive the entire sleeve (19) to extend, and one end of the rear wheel frame (2) is connected to the same sleeve on one side of the tooth sleeve (16), so that the fifth tooth shaft (24) rotates to adjust the height of the rear wheel frame (2).

Images