CN107854287A - The road wheel and walk helper of a kind of walk helper - Google Patents

Abstract

The invention provides a walking wheel of a walking aid, which includes two rollers, the two rollers are connected by a roller shaft, and a support foot with a hollow cavity, and slide grooves extending in the up and down direction are provided at opposite ends of the support foot , the foot is located between the two rollers and the roller shaft passes through the foot through the chute, a slider and a limit block located above the slider are arranged in the hollow cavity, the slider is arranged on the roller shaft in the hollow cavity, and the limit The piece is fixed on the cavity wall of the hollow cavity, a threaded groove runs through the upper and lower surfaces of the limit block, and the adjusting screw that can engage with the threaded groove is screwed down into the threaded groove, and the upper end of an elastic member extends into the threaded groove It abuts against the adjusting screw, and its lower end is connected with the slide block. The elastic member pushes up the leg through the limit block so that the lower end of the leg is suspended in the air. Beneficial effects: simple structure, convenient use, good stability and adjustable brake elasticity.

Description

A walking wheel of a walking aid and a walking aid

technical field

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

Background technique

A walker is a rehabilitation device that helps the elderly, people with reduced mobility or people with disabilities practice walking. Most of them use a wheelchair structure. When you are tired, you can brake the wheelchair and sit on the seat of the wheelchair to rest.

There are many brake structures and forms of existing walker wheelchairs, and the more common ones are mainly manual brakes and electric brakes. The manual brake device uses the brake handle to brake the wheelchair, which is not suitable for the elderly with insufficient hand strength, because it is difficult to effectively brake the wheelchair due to insufficient hand strength, resulting in low safety for the use of walkers. The electric brake device uses the control button, drive motor, screw nut, and brake to brake the wheelchair. Although the operation of this electric brake device is relatively simple, it needs to be charged continuously, and its reliability depends on the reliability of the electronic control system. In addition , The structure of the electric brake device is generally all more complicated. Another example is a backrest brake device that has been used on walker wheelchairs. This device is equipped with a brake push rod on the backrest of the walker wheelchair, and relies on the force of the back of the wheelchair user to drive the brake through the action of the connecting rod. The device brakes the wheelchair, and the reliability of the back brake device is to a certain extent related to the weight of the wheelchair user and the force of the back on the brake push rod. Therefore, the safety and reliability of the brake is also difficult to be effectively guaranteed.

To sum up, no matter what kind of brake device is in use, it needs to be further improved in terms of safety and reliability.

Contents of the invention

In view of this, the embodiment of the present invention provides a walking wheel and a walker of a walker with a simple brake structure, convenient use, good stability and adjustable brake elasticity.

An embodiment of the present invention provides a walking wheel of a walker, which includes two rollers arranged at intervals, and the two rollers are connected by a roller shaft to move synchronously, and also includes a support leg with a hollow cavity, and the opposite sides of the support legs Both ends are provided with chute extending along the up and down direction, the legs are located between the two rollers and the roller shaft passes through the legs through the chute, the hollow cavity is provided with sliders and The limit block above the slider, the slider is set on the roller shaft in the hollow cavity, the limit piece is fixed on the cavity wall of the hollow cavity, and a thread groove runs through the limit The upper and lower surfaces of the block can be screwed downwards into the threaded groove through an adjusting screw engaged with the threaded groove, and the upper end of an elastic member stretches into the threaded groove to abut against the adjusting screw, and its lower end is in contact with the said adjusting screw. The slider is connected, and the elastic member pushes up the leg through the limit block so that the lower end of the leg is suspended in the air. When the bracket is pressed down, the chute moves down relative to the roller shaft so that The legs land on the ground.

Further, the nut of the adjusting screw is provided with a slot, a cross groove or a plum blossom groove for matching with a screwdriver.

Further, the adjusting screw is a columnar structure, and its nut has the same outer diameter as the screw rod.

Further, the length of the adjusting screw is less than the depth of the threaded groove, and can be completely screwed into the threaded groove.

Further, a wear-resistant block is provided at the lower end of the leg.

Further, a groove is provided on the slider, and the lower end of the elastic member is limited in the groove.

Further, the limiting block is fixed to the cavity wall of the hollow cavity by pins.

Further, the side surface of the slider is in slidable contact with the inner wall of the hollow cavity.

Further, the elastic member is a spring and is in a compressed state.

An embodiment of the present invention provides a walking aid, and the above walking wheels of the walking aid are installed at the ends of the legs of the walking aid.

The beneficial effects of the technical solutions provided by the embodiments of the present invention are: the walking wheels of the walker and the walker of the present invention, (1) apply downward pressure on the legs, and the chute can Move down relative to the roller shaft to make the support feet fall to the ground, thereby acting as a brake. The structure is simple, stable and reliable, and easy to use; (2) The adjusting screw and the thread groove are connected to each other by thread engagement , when part of the adjustment screw is unscrewed upward, the compression state of the elastic member is relieved, the resisting force of the elastic member on the limit block is reduced, and a small downward force can be applied on the support foot Make the chute move down relative to the roller shaft so that the feet land on the ground to act as a brake; when part of the adjustment screw is screwed in downward, the compression state of the elastic member is even worse, and the elastic member The resisting force on the limit block is increased, and a larger downward force is applied on the support foot to make the chute move down relative to the roller shaft and make the support foot fall to the ground, which acts as a brake , so that the adjusting screw can be properly adjusted according to the strength of the user, so that the user can more conveniently brake the walking wheels and the walking aid of the walking aid of the present invention.

Description of drawings

Fig. 1 is a schematic diagram of the walking wheel of the walking aid of the present invention;

Fig. 2 is a schematic diagram of the walking aid of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

Please refer to Fig. 1 and Fig. 2, the embodiment of the present invention provides the walking wheel of the walker, which can be installed on the leg end of the walker to replace the original walking wheel of the walker, mainly including: Two rollers 7 , a roller shaft 8 connecting the two rollers 7 , and a foot 1 between the two rollers 7 and penetrated by the roller shaft 8 .

Please refer to FIG. 1 , the roller shaft 8 connects the bearing portions of the two rollers 7 to make the two rollers 7 move synchronously. Preferably, the roller shaft 8 is a bolt structure, one end of the screw rod is provided with a nut, and the other end passes through two bearings of the roller 7 and is inserted into a nut 9 . The support leg 1 has a hollow cavity inside, and the opposite ends of the support leg 1 are provided with chute 10 extending in the up and down direction, the chute 10 communicates with the outside world and the hollow cavity, and the roller shaft 8 passes through two The chute 10 runs through the support foot 1 . The inner side of the roller 7 protrudes inwardly with a protruding portion 13, and the protruding portion 13 is pressed against the outer surface of the support foot 1 through a gasket, so that the roller 7 and the support foot 1 maintain an appropriate distance .

Please refer to Fig. 1, a slider 6 and a limit block 3 located above the slider 6 are provided in the hollow cavity, and the slider 6 is sleeved on the roller shaft 8 located in the hollow cavity. On the outer surface, the limiting block 3 is fixed to the cavity wall of the hollow cavity by pins 4 . The center of the limiting block 3 is provided with a thread groove, and the thread groove runs through the upper and lower surfaces of the limiting block 3, and an adjusting screw 2 has an external thread capable of engaging with the thread groove, and the adjusting screw 2 screw down into the threaded groove, enter the threaded groove from the upper opening of the threaded groove, the length of the adjusting screw 2 is less than the depth of the threaded groove, and the adjusting screw 2 is a columnar structure, The nut has the same outer diameter as the screw rod and can be completely screwed into the threaded groove. The nut of the adjusting screw 2 is provided with a slotted slot or a cross slot or a plum blossom slot matched with a screwdriver. The adjusting screw 2 is screwed into or out of the screw groove by cooperating with the slotted groove, the cross groove or the plum blossom groove by a screwdriver.

Please refer to Fig. 1, an elastic member 5, preferably a spring, is located between the limit block 3 and the slider 6, and the upper end of the elastic member 5 extends upward into the threaded groove and the adjusting screw 2 In abutment, the lower end of the elastic member 5 is downwardly connected with the slider 6, and a groove is provided on the slider 6, and the lower end of the elastic member 5 is limited in the groove. The elastic member 5 is in a compressed state, and the lower end of the leg 1 is suspended in the air by the stop block 3 pushing up the leg 1. When the bracket 1 is pressed down, the sliding groove 10 is opposite to the The roller shaft 8 moves down to make the supporting foot 1 fall to the ground. The side surface of the sliding block 6 is in slidable contact with the inner wall of the hollow cavity, so as to ensure the stability of the sliding groove 10 when sliding relative to the support foot 1 .

Please refer to Fig. 1, the lower end of the said leg 1 is provided with an anti-wear block 12, which is used to protect the lower end of the said leg 1 on the one hand, prevent it from being worn out, increase the service life of the traveling wheel, and increase the wear resistance of the said leg 1 on the other hand. The friction with the ground makes the brake more stable, prevents slipping during braking, and improves the convenience of use. Normally, when there is no force, the distance between the wear-resistant block 12 and the ground is 3-5mm.

Please refer to FIG. 2 , an embodiment of the present invention provides a walking aid equipped with the above-mentioned walking wheels.

The beneficial effects brought by the technical solution provided by the embodiments of the present invention are: the walking wheels of the walker and the walker of the present invention, (1) apply downward pressure on the support foot 1, and the chute 10 That is, the roller shaft 8 can be moved down relative to the roller shaft 8 to make the supporting foot 1 fall to the ground, thereby acting as a brake. The structure is simple, stable and reliable, and it is easy to use; (2) the adjusting screw 2 and the threaded groove are threaded The way of engagement is connected with each other. When part of the adjustment screw 2 is unscrewed upward, the compression state of the elastic member 5 is relieved, and the resisting force of the elastic member 5 to the limit block 3 is reduced. 1, the chute 10 can be moved down relative to the roller shaft 8 by applying a small downward force on the 1, so that the support foot 1 falls to the ground, which acts as a brake; when part of the adjustment screw 2 is screwed downward, The compressed state of the elastic member 5 is even worse, and the resisting force of the elastic member 5 to the limiting block 3 increases, and only when a larger downward force is applied on the support foot 1 can the sliding groove 10 Move down relative to the roller shaft 8 to make the supporting foot 1 fall to the ground, which acts as a brake, so that the adjusting screw 2 can be properly adjusted according to the strength of the user, so that the user can use the present invention more conveniently. The traveling wheel of the walker and the brake of the walker.

In this article, the orientation words such as front, rear, upper, and lower involved are defined by the parts in the drawings and the positions between the parts in the drawings, just for the clarity and convenience of expressing the technical solution. It should be understood that the use of the location words should not limit the scope of protection claimed in this application.

In the case of no conflict, the above-mentioned embodiments and features in the embodiments herein may be combined with each other.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. A walking wheel of a walking aid, characterized in that: two rollers arranged at intervals are included, and the two rollers are connected by a roller shaft to move synchronously, and also include a support leg with a hollow cavity, and the opposite sides of the support legs Both ends are provided with chute extending along the up and down direction, the legs are located between the two rollers and the roller shaft passes through the legs through the chute, the hollow cavity is provided with sliders and The limit block above the slider, the slider is set on the roller shaft in the hollow cavity, the limit piece is fixed on the cavity wall of the hollow cavity, and a thread groove runs through the limit The upper and lower surfaces of the block can be screwed downwards into the threaded groove through an adjusting screw engaged with the threaded groove, and the upper end of an elastic member stretches into the threaded groove to abut against the adjusting screw, and its lower end is in contact with the adjusting screw. The slider is connected, and the elastic member pushes up the leg through the limit block so that the lower end of the leg is suspended in the air. When the bracket is pressed down, the chute moves down relative to the roller shaft And make described support foot fall to the ground. 2. The walking wheel of the walking aid according to claim 1, characterized in that: the nut of the adjustment screw is provided with a slot or a cross or a plum blossom groove for matching with a screwdriver. 3. The walking wheel of the walking aid according to claim 2, characterized in that: the adjusting screw is a columnar structure, and the outer diameter of the nut is the same as that of the screw rod. 4. The walking wheel of the walking aid according to claim 3, wherein the length of the adjusting screw is smaller than the depth of the threaded groove, and can be completely screwed into the threaded groove. 5. The walking wheel of the walking aid according to claim 1, wherein the lower end of the support leg is provided with an anti-wear block. 6 . The walking wheel of a walking aid according to claim 1 , wherein a groove is provided on the sliding block, and the lower end of the elastic member is limited in the groove. 6 . 7 . The walking wheel of the walking aid according to claim 1 , wherein the limiting block is fixed to the cavity wall of the hollow cavity by pins. 8 . 8 . The walking wheel of the walking aid according to claim 1 , wherein the side surface of the slider is in slidable contact with the inner wall of the hollow cavity. 9 . 9. The walking wheel of the walking aid according to claim 1, wherein the elastic member is a spring and is in a compressed state. 10. A walking aid, characterized in that: the walking wheel of the walking aid according to any one of claims 1 to 9 is installed at the end of the legs of the walking aid.