CN110840716A

CN110840716A - Walking stick capable of automatically lifting

Info

Publication number: CN110840716A
Application number: CN201911174621.0A
Authority: CN
Inventors: 尚鹏; 侯增涛
Original assignee: Shenzhen Institute of Advanced Technology of CAS
Current assignee: Shenzhen Institute of Advanced Technology of CAS
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-02-28
Also published as: WO2021104057A1

Abstract

The invention discloses an automatic lifting crutch which comprises a body and two adjusting wheel sets, wherein the two adjusting wheel sets are distributed at the bottom of the body at intervals, each adjusting wheel set comprises a first driving piece, a driving shaft, a connecting rod, a second driving piece and a roller wheel, the first driving piece is connected to the bottom wall of the body, the driving shaft is connected with the first driving piece, the first driving piece can drive the driving shaft to rotate, one end of the connecting rod penetrates through the driving shaft, each second driving piece is connected to the other end of one connecting rod, the roller wheel is connected with the second driving piece, and the second driving piece can drive the roller wheel to rotate. The crutch capable of automatically lifting can realize the function of automatically adjusting the height, and better meets the requirement that the height of the crutch needs to be automatically adjusted when a user changes between sitting posture and standing posture.

Description

Walking stick capable of automatically lifting

Technical Field

The invention relates to the technical field of articles for daily use, in particular to a crutch capable of automatically lifting.

Background

The telescopic walking stick for assisting the walking of the old or the patient mainly depends on manual pulling, consumes extra physical power, can not automatically adjust the height of the walking stick, and brings great adjustment trouble or even accidents when the postures of sitting and standing are switched.

The height of the traditional crutch is generally manually adjusted by using a plurality of vacant positions and elastic metal devices, and the traditional crutch does not have an automatic adjusting device, so that the requirement of automatic height adjustment during the conversion between sitting postures and standing postures cannot be met.

Disclosure of Invention

The invention aims to provide an automatic lifting crutch, which can realize the function of automatically adjusting the height and better meet the requirement that the height of the crutch needs to be automatically adjusted when a user changes sitting posture and standing posture.

In order to achieve the technical effects, the technical scheme of the crutch capable of automatically lifting is as follows:

an automatically liftable crutch, comprising: a body; adjust the wheelset, adjust the wheelset and be two, two adjust wheelset interval distribution and be in the bottom of body, every adjust the wheelset and all include: the first driving piece is connected to the bottom wall of the body; the driving shaft is connected with the first driving part, and the first driving part can drive the driving shaft to rotate; one end of the connecting rod penetrates through the driving shaft; the second driving piece is connected to the other end of the connecting rod; the roller is connected with the second driving piece, and the second driving piece can drive the roller to rotate.

In some embodiments, the body comprises a handle, a support rod and a base assembly, and two ends of the support rod are respectively connected with the handle and the base assembly.

In some optional embodiments, the base assembly comprises: the first bottom plate is connected with the supporting rod; the second bottom plate, the second bottom plate with first bottom plate interval sets up, first bottom plate with be equipped with a plurality of elastic component between the second bottom plate.

In some embodiments, the connecting rods, the second driving element and the rollers in each adjusting wheel set are multiple, and the connecting rods are distributed at intervals along the axial direction of the driving shaft.

In some embodiments, the connecting rod includes mobile jib and branch pole, a pot head of mobile jib is established on the drive shaft, the other end of mobile jib with the one end of branch pole is connected, divide the L type of being of pole, divide all to cooperate on two branches of pole the second driving piece with the gyro wheel.

In some embodiments, the first drive member comprises: the first motor is connected to the body; the input end of the speed reducer is connected with a motor shaft of the first motor, and the output end of the speed reducer is connected with the driving shaft.

In some embodiments, the second drive member includes a second motor having a motor shaft coupled to the roller.

In some embodiments, one end of the connecting rod is an interference fit with the drive shaft.

In some embodiments, the adjusting wheel set further includes a plurality of supporting seats, each supporting seat is connected to the bottom wall of the body, and the driving shaft is inserted into the supporting seat.

In some optional embodiments, the circumferential surface of the roller is provided with an anti-slip layer.

According to the crutch capable of automatically lifting, the first driving piece for driving the connecting rod to rotate and the second driving piece for driving the idler wheels to rotate are arranged, so that the function of changing the distance between the two idler wheels by synchronous working of the first driving piece and the second driving piece to automatically adjust the height of the crutch is realized, and the requirement that the height of the crutch needs to be automatically adjusted when a user changes two postures, namely sitting and standing, is well met. In addition, the second driving piece can also independently drive the roller to rotate, so that the walking stick can automatically advance to assist a user to walk.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of a crutch capable of automatically ascending and descending according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another direction of the crutch capable of automatically ascending and descending according to the embodiment of the invention.

Reference numerals:

1. a body;

11. a handle; 12. a support bar;

13. a base assembly; 131. a first base plate; 132. a second base plate; 133. an elastic member;

2. adjusting the wheel set;

21. a first driving member; 22; a drive shaft; 23. a connecting rod; 231. a main rod; 232. separating rods; 24. a second driving member; 25. a roller; 26. and (4) supporting the base.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following describes a specific structure of the automatic liftable crutch according to the embodiment of the present invention with reference to fig. 1 to 2.

As shown in fig. 1-2, the walking stick capable of automatically lifting comprises a main body 1, two adjusting wheel sets 2 and a control assembly, wherein the two adjusting wheel sets 2 are distributed at the bottom of the main body 1 at intervals, each adjusting wheel set 2 comprises a first driving member 21, a driving shaft 22, a connecting rod 23, a second driving member 24 and a roller 25, the first driving member 21 is connected to the bottom wall of the main body 1, the driving shaft 22 is connected to the first driving member 21, the first driving member 21 can drive the driving shaft 22 to rotate, one end of the connecting rod 23 is arranged on the driving shaft 22 in a penetrating manner, the second driving member 24 is connected to the other end of the connecting rod 23, the roller 25 is connected to the second driving member 24, and the second driving member 24 can drive the roller 25 to rotate. The control component is electrically connected with the first driving component 21 and the second driving component 24 to adjust the working state of the first driving component 21 and the second driving component 24.

It can be understood that the smaller the distance between the rollers 25 of the two adjusting wheel sets 2, the smaller the angle between the connecting rod 23 and the vertical direction, and the higher the height of the whole automatic lifting crutch corresponding to the angle. On the contrary, the larger the distance between the rollers 25 of the two adjusting wheel sets 2 is, the larger the included angle between the connecting rod 23 and the vertical direction is, and the shorter the height of the whole crutch capable of automatically lifting and lowering is.

In actual use, when the crutch needs to be lifted, the control assembly sends a signal to the two first driving members 21, the two first driving members 21 drive the two connecting rods 23 to rotate in a direction close to each other, and meanwhile, the second driving member 24 drives the roller 25 to rotate in the same direction as the rotating direction of the connecting rod 23 arranged correspondingly. In this way, the connecting rods 23 and the rollers 25 rotate synchronously, so that the connecting rods 23 move towards the direction close to each other, that is, the distance between the rollers 25 of the two adjusting wheel sets 2 is reduced, and the overall height of the crutch is increased. When the crutch needs to be lowered, the two first driving pieces 21 drive the two connecting rods 23 to rotate in the direction away from each other, and meanwhile, the second driving piece 24 drives the roller 25 to rotate in the same direction as the rotating direction of the connecting rod 23 arranged correspondingly. This ensures that the connecting rods 23 move towards each other in a direction in which the connecting rods 23 rotate synchronously with the rollers 25, i.e. the spacing between the rollers 25 of the two adjusting wheel sets 2 increases and the overall height of the crutch decreases. In addition, in the process of using at ordinary times, the second driving piece 24 can also independently drive the roller 25 to rotate, so that the walking stick can automatically advance to assist the user to walk.

According to the crutch capable of automatically lifting, the first driving piece 21 for driving the connecting rod 23 to rotate and the second driving piece 24 for driving the roller 25 to rotate are arranged, so that the function of changing the distance between the two rollers 25 by synchronously working the first driving piece 21 and the second driving piece 24 so as to automatically adjust the height of the crutch is realized, and the requirement that the height of the crutch needs to be automatically adjusted when a user changes two postures, namely sitting and standing, is better met. In addition, the second driving member 24 can also drive the roller 25 to rotate independently, so that the walking stick can automatically advance to assist the user to walk.

It should be additionally described here that, in the embodiment of the present invention, the control component is only required to be a single chip microcomputer in the prior art, and specific descriptions on specific models and types of the control component are not required here. The skilled person can select the control component based on existing knowledge about automatic control.

In some embodiments, as shown in fig. 1, the body 1 includes a handle 11, a support rod 12 and a base assembly 13, and the support rod 12 is connected to the handle 11 and the base assembly 13 at two ends. It can be understood that the body 1 is convenient for a user to hold and has enough installation surface for installing the adjusting wheel set 2. Adopt the syllogic structure of handle 11, bracing piece 12 and base subassembly 13, handle 11 can the person of facilitating the use grip, and base subassembly 13 provides sufficient installation face installation regulation wheelset 2, and bracing piece 12 has played the effect of intermediate junction for whole body 1 has certain height. Of course, it should be noted that the shapes of the handle 11, the support rod 12 and the base assembly 13 can be selected according to actual needs.

In some alternative embodiments, as shown in fig. 1, the base assembly 13 includes a first base plate 131 and a second base plate 132, the first base plate 131 is connected to the support rod 12, the second base plate 132 is spaced apart from the first base plate 131, and a plurality of elastic members 133 are disposed between the first base plate 131 and the second base plate 132. Therefore, the elastic piece 133 can counteract the vibration caused by the movement of the first driving piece 21 and the second driving piece 24, so that a user holding the body 1 basically cannot feel the vibration, and the use satisfaction of the user is improved.

In some embodiments, as shown in fig. 2, the connecting rod 23, the second driving member 24 and the roller 25 in each adjusting wheel set 2 are multiple, and the multiple connecting rods 23 are spaced along the axial direction of the driving shaft 22. Therefore, the stability of the body 1 can be better ensured, and the unstable phenomenon of the body 1 caused by only containing one roller 25 in each adjusting wheel set 2 is avoided.

Preferably, there are two of the connecting rod 23, the second driving member 24 and the roller 25. Therefore, the stability of the body 1 can be ensured, the redundant connecting rod 23, the second driving piece 24 and the roller 25 are avoided, and the structure of the whole crutch capable of automatically lifting is simplified.

In some embodiments, as shown in fig. 2, the connecting rod 23 includes a main rod 231 and a branch rod 232, one end of the main rod 231 is sleeved on the driving shaft 22, the other end of the main rod 231 is connected with one end of the branch rod 232, the branch rod 232 is L-shaped, and two branches of the branch rod 232 are respectively matched with a roller 25 connected with the second driving member 24 and the second driving member 24. It will be appreciated that since the link 23 includes the main lever 231 and the branch lever 232, two rollers 25 can be coupled to one link 23. Therefore, the self-adjusting crutch can realize stable self-adjustment when the height is automatically adjusted, and can improve the stability of the whole crutch capable of automatically lifting when in actual use.

It should be noted that, in some embodiments, the links 23 of one of the plurality of driving wheel sets are formed as separate structures of the main rod 231 and the branch rod 232, and the links 23 of the other driving wheel set are formed as an integral structure. In some embodiments, the connecting rods 23 of all of the plurality of driving wheel sets are formed as a separate structure of the main rod 231 and the branch rod 232. In some embodiments, the links 23 of all of the plurality of drive wheel sets form a unitary structure.

In some embodiments, the first drive member 21 comprises a first motor, the first motor being connected to the body 1; and the input end of the speed reducer is connected with the motor shaft of the first motor, and the output end of the speed reducer is connected with the driving shaft 22. It will be appreciated that the use of a motor to rotate the drive shaft 22 thus provides a better guarantee of rotation of the roller 25 and simplifies the control procedure for the entire cane which is automatically raised and lowered. In addition, the speed reducer can reduce the rotating speed of the driving shaft 22, so that the lifting of the body 1 is slow, and accidents caused by the fact that the lifting speed of the body 1 is too high are avoided.

In some embodiments, the second drive member 24 comprises a second motor having a motor shaft coupled to the roller 25. Therefore, the motor is adopted to drive the roller 25 to rotate, so that the rotation of the roller 25 can be better ensured, and the control program of the whole crutch capable of automatically lifting can be simplified. It should be noted that, in the practical process, the second motor may be a stepping motor, a servo motor, or the like according to actual needs, or may be another rotation driving member such as a rotary cylinder.

In some embodiments, one end of the connecting rod 23 is an interference fit with the drive shaft 22. It can be understood that, according to the above description, the first driving member 21 is required to drive the connecting rod 23 to rotate during the process of adjusting the height of the body 1, and the second driving member 24 drives the roller 25 to rotate in cooperation with the connecting rod to complete the adjustment of the body 1. The connecting rod 23 and the driving shaft 22 are in interference fit, so that the connecting rod 23 can be prevented from rotating relative to the driving shaft 22 to a certain extent, and the body 1 can be stably and automatically adjusted in height. Of course, in other embodiments of the present invention, a key connection or other connection may be used between the connecting rod 23 and the driving shaft 22.

In some embodiments, as shown in fig. 2, the adjusting wheel set 2 further includes a plurality of supporting seats 26, each supporting seat 26 is connected to the bottom wall of the body 1, and the driving shaft 22 is inserted through the supporting seat 26. Therefore, the stability of the driving shaft 22 can be ensured, the phenomenon that the driving shaft 22 is bent when the driving shaft 22 is matched with a plurality of connecting rods 23 is avoided, and the service life of the driving shaft 22 is prolonged.

In some alternative embodiments, the roller 25 is provided with an anti-slip layer on its circumferential surface. It will be appreciated that in actual use, the roller 25 is in contact with the ground, and if the circumference of the roller 25 is smooth, the user may slip. In the embodiment, the anti-slip layer is arranged on the circumferential surface of the roller 25, so that the friction force between the roller 25 and the ground is increased, and the slipping phenomenon of a user is well avoided.

The structure of the automatic liftable crutch according to one embodiment of the present invention will be described with reference to fig. 1 to 2.

As shown in fig. 1-2, the crutch capable of automatically lifting of the present invention includes a main body 1, two adjusting wheel sets 2 and a control assembly, wherein the two adjusting wheel sets 2 are distributed at the bottom of the main body 1 at intervals.

The body 1 comprises a handle 11, a support rod 12 and a base assembly 13, wherein two ends of the support rod 12 are respectively connected with the handle 11 and the base assembly 13. The base assembly 13 includes a first base plate 131 and a second base plate 132, the first base plate 131 is connected to the support rod 12, the second base plate 132 is spaced apart from the first base plate 131, and a plurality of elastic members 133 are disposed between the first base plate 131 and the second base plate 132.

One of them regulation wheelset 2 includes first driving piece 21, drive shaft 22, two connecting rods 23, two second driving pieces 24 and two gyro wheels 25, first driving piece 21 is connected on the diapire of body 1, drive shaft 22 links to each other with first driving piece 21, first driving piece 21 can drive shaft 22 and rotate, two connecting rods 23 are along drive shaft 22's axial interval distribution, the one end of every connecting rod 23 is worn to establish on drive shaft 22, the other end is connected with second driving piece 24, second driving piece 24 link to each other with drive gyro wheel 25 and rotate.

Another regulation wheelset 2 includes first driving piece 21, the drive shaft 22, two connecting rods 23, four second driving pieces 24 and four gyro wheels 25, first driving piece 21 is connected on the diapire of body 1, drive shaft 22 links to each other with first driving piece 21, first driving piece 21 can drive shaft 22 and rotate, two connecting rods 23 are along the axial interval distribution of drive shaft 22, every connecting rod 23 includes mobile jib 231 and branch pole 232, the pot head of mobile jib 231 is established on drive shaft 22, the other end of mobile jib 231 is connected with the one end of branch pole 232, divide the pole 232 to be the L type, all cooperate on two branches of branch pole 232 to have the gyro wheel 25 that links to each other with second driving piece 24 and second driving piece 24. The control component is electrically connected with the first driving component 21 and the second driving component 24 to adjust the working state of the first driving component 21 and the second driving component 24.

The automatic lifting crutch of the embodiment achieves the purpose of adjusting the distance between the rollers 25 by the rotation of the first driving part 21 and the second driving part 24 in a certain direction and at different rotating speeds, so that the height of the crutch can be changed. In addition, when the crutch is used for walking at ordinary times, the second driving piece 24 drives the roller 25 to rotate, so that the crutch can automatically travel, and the function of helping the user to travel is realized.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A crutch capable of automatically lifting is characterized by comprising:

a body (1);

adjust wheelset (2), adjust wheelset (2) and be two, two adjust wheelset (2) interval distribution and be in the bottom of body (1), every adjust wheelset (2) and all include:

the first driving piece (21), the first driving piece (21) is connected to the bottom wall of the body (1);

a driving shaft (22), wherein the driving shaft (22) is connected with the first driving part (21), and the first driving part (21) can drive the driving shaft (22) to rotate;

one end of the connecting rod (23) is arranged on the driving shaft (22) in a penetrating way;

a second driving member (24), wherein the second driving member (24) is connected to the other end of the connecting rod (23);

the roller (25), the roller (25) is connected with the second driving piece (24), and the second driving piece (24) can drive the roller (25) to rotate.

2. The crutch of claim 1 wherein said body (1) comprises a handle (11), a support rod (12) and a base assembly (13), and both ends of said support rod (12) are connected to said handle (11) and said base assembly (13), respectively.

3. The automated liftable crutch of claim 2 wherein said base assembly (13) comprises:

a first bottom plate (131), wherein the first bottom plate (131) is connected with the supporting rod (12);

the second bottom plate (132), second bottom plate (132) with first bottom plate (131) interval sets up, be equipped with a plurality of elastic component (133) between first bottom plate (131) and second bottom plate (132).

4. The crutch of claim 1 wherein each of said adjustment wheel set (2) comprises a plurality of said connecting rods (23), said second driving member (24) and said rollers (25), said plurality of said connecting rods (23) being spaced along the axial direction of said drive shaft (22).

5. The crutch of claim 1 wherein the connecting rod (23) comprises a main rod (231) and a branch rod (232), wherein one end of the main rod (231) is sleeved on the driving shaft (22), the other end of the main rod (231) is connected with one end of the branch rod (232), the branch rod (232) is L-shaped, and the two branches of the branch rod (232) are respectively matched with the second driving member (24) and the roller (25).

6. The automated liftable crutch of claim 1 wherein said first drive member (21) comprises:

the first motor is connected to the body (1);

the input end of the speed reducer is connected with a motor shaft of the first motor, and the output end of the speed reducer is connected with the driving shaft (22).

7. The automated liftable crutch of claim 1 wherein said second drive member (24) comprises a second motor, a motor shaft of said second motor being connected to said roller (25).

8. The automated liftable crutch of claim 1 wherein one end of said link (23) is an interference fit with said drive shaft (22).

9. The crutch of claim 1 wherein said adjustable wheel set (2) further comprises a plurality of supporting seats (26), each supporting seat (26) is connected to the bottom wall of said body (1), and said driving shaft (22) is inserted through said supporting seat (26).

10. The crutch of claim 1 wherein the circumference of the roller (25) is provided with a non-slip layer.