CN200960258Y - Combined stick - Google Patents

Abstract

The utility model relates to a combination crutch, which comprises a crutch body, an armrest mechanism connected with the top of the crutch body and a foot mechanism movably connected with the lower part of the crutch body. The limiting mechanism of the foot body and the main body of the crutch. The utility model provides mobility convenience for the elderly whose legs and feet support force is insufficient but the strength of the upper limbs is not bad, and the disabled who suffer from hemiplegia and other symptoms resulting in insufficient support of the legs.

Description

combination crutches

Technical field

The utility model relates to the field of assisting devices for the disabled, in particular to a combination crutch which can help people with inconvenient lower limbs to walk in daily life.

Background technique

The existing various auxiliary walking aids generally have the disadvantage that stability and flexibility cannot coexist. However, the current situation is. Especially for the elderly, stability and flexibility are very important. Lacking one of them is very dangerous for such people to walk independently (unaccompanied by others), and for the elderly, walking is their best way of exercising, and it is of great benefit to their bodies. In today's society, since most of the children have their own jobs, it is impossible to go for a walk with the elderly often. In this way, the stability and flexibility of the walker have higher requirements.

Existing walking aids have walking sticks, crutches, walking aids and the like.

1. walking stick

Walking sticks can be divided into standard, standard adjustable sticks, three-legged, four-legged and walking sticks. In general use, the cane is held sideways, but not for those with limited load. The advantages and disadvantages of various canes are introduced as follows:

(1) One-legged cane: generally refers to it is made of wood or aluminum, and has a semicircular handle, which is very convenient to use.

Advantages: Suitable for going up and down stairs or other places with limited space. It is suitable for patients with good grip and strong upper limb support. Generally, the side cane can support 20%-25% of the body weight. Disadvantages: Its support point is located in front of the hand, not directly below, it is more laborious to use, and its stability is poor.

(2) Adjustable curved stick

Pros: By bending the shaft under the handle, it allows for a more steady flow of pressure through the center of the staff

Disadvantages: expensive, because there is only one fulcrum in contact with the ground, it is not stable enough. When going up the slope with one leg, due to the single support point, the bottom is very easy to slip at this time. This is very dangerous for the elderly and those with weak lower limbs. It is also very prone to problems when encountering uneven road surfaces.

(3) Multi-legged canes (three and four-legged canes)

Advantages: Provides a wider base support surface

Disadvantages: the base is wide, not suitable for going up and down stairs; the base is wide, and the force state of people is poor when encountering slopes or uneven roads.

In these two situations, although multi-legged crutches can provide relatively large base support, the state of supporting force at this time is not safe.

2. Crutches

Common crutches include axillary sticks, elbow sticks, etc.

(1) Axillary stick

Structure: It is divided into several parts such as crutch cover, crutch handle, side bow, extension rod, rubber crutch head, adjustment screw and bolt.

Type: divided into standard type and adjustable type.

Advantages: It can better improve balance and can be used up and down stairs. Can reduce 80% of lower body weight.

Disadvantages: due to the three-point stand, the base is large, and the floor with a small area should be cautious and bulky; it is safe to use in crowded places; if it is used improperly, it is easy to cause damage to the armpits, blood vessels and nerves.

(2) Forearm stick

Structure: It is composed of forearm cuff, upright rod, adjustable notch and locking nail, rubber turning head and other parts.

Pros: Has a forearm cuff so the crutches don't have to be removed when needed, allowing functional stair climbing.

Disadvantages: Due to the lack of armrests, there is little lateral support, and it is inconvenient to remove the sleeves.

3. Walking frame

Generally, wheels are installed and can be promoted. It is more convenient to use on flat ground. It is bulky, bulky and inconvenient to carry.

Contents of utility model

The purpose of the utility model is to provide a combination crutch, which provides convenience for the elderly with insufficient leg support but good upper limb strength and disabled persons suffering from hemiplegia and other symptoms resulting in insufficient leg support.

The combined crutch of the utility model comprises a crutch main body, an armrest mechanism connected with the top of the crutch main body and a foot mechanism movably connected with the lower part of the crutch main body. The limit mechanism of the main body of the crutch.

Each foot of the two pairs of feet includes a pillar, a wheel movably connected with the bottom of the pillar, and a brake mechanism on the wheel.

The brake mechanism on the wheel comprises a brake pad mounted on the foot support, a hand brake, and a steel wire connecting the brake pad and the hand brake.

Several connecting rods are arranged between the pillars of the foot body.

The limit mechanism of the foot mechanism includes a limit rod fixed at the bottom of the main body of the crutch. Both ends of the limit rod are engaged with the head gears of the feet. A spring and a connecting rod with a limit hole on the upper part are arranged between each pair of feet. , the two ends of the connecting rod are movably connected to the two feet of each pair of feet, and the limit hole is sleeved on the limit rod.

The armrest mechanism includes a handle and three telescopic support rods; one end of the support rod is connected to the head of the main body of the crutch, and the other end is movably connected to the handle.

This device that can help people with inconvenient lower limbs to walk in daily life can include a pair of sticks, and the head of the pair of sticks is movably connected with one end of the handle of the armrest mechanism.

The main advantage of the crutches designed in this way is that they can ensure stability, and can give the elderly more time to exert force and adjust more calmly. Therefore, people do not need to make special movements, and can complete the process of going upstairs very naturally. This innovative foot design can make the crutches give the crutches a stable and always vertical upward force in any terrain to reduce the burden on the user's feet. This is a function that is currently not possible with all walkers. Simultaneously, the structure is relatively simple and the overall weight is light. It does not need to be lifted repeatedly when used on flat ground, which saves the user's hand strength and makes the crutches more stable. Slow braking is achieved by using a braking device similar to that of a bicycle, which makes it easier for the user to control on flat ground. Through these designs, it is easier, more relaxed and more comfortable for users to realize walking training on flat ground.

Description of drawings

Fig. 1 is the structural representation of the utility model combination crutch;

Fig. 2 is a schematic structural diagram of the foot mechanism in Fig. 1 .

Detailed ways

The utility model will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

As shown in Figure 1, the combination crutch of the present utility model comprises a crutch body 3, an armrest mechanism 2 connected with the top of the crutch body 3 and a foot mechanism 4 movably connected with the bottom of the crutch body 3. Two pairs of feet 43 in contact, and a position-limiting mechanism 45 connecting the feet and the main body of the crutch.

Each foot of the two pairs of feet includes a pillar 431, a wheel 432 movably connected to the bottom of the pillar, and a braking mechanism on the wheel 432.

The braking mechanism on the wheel comprises a brake pad 42, a hand brake, and a steel wire that connects the brake pad and the hand brake.

Several connecting rods are arranged between the pillars of the foot body.

The limit mechanism 45 of the foot mechanism 4 includes a limit rod 451 fixed on the bottom of the crutch body. The connecting rod 452 of the position hole, the two ends of the connecting rod are movably connected on the two feet of every pair of feet, and the limit hole is sleeved on the limit rod.

The armrest mechanism includes a handle 22 and three telescopic support rods 21;

In the initial state, the hand applies an upward force to the handle 22, so that the support rod 21 makes a clockwise circular motion with the top of the crutch body 3 . At this time, the elbow of the forearm of the person is still leaning against the main pole. The crutch main body 3 gives a stable supporting force to the person (note: at this moment, the wheel 432 has been locked in Fig. 2 ). This is conducive to the stability of the elderly and can ensure the safety of the elderly. Auxiliary stick 1 only needs to swing an angle slightly backwards and just can not bump into the stairs and guarantee the safety when going up. Lean forward at an angle and put it in the approximate position. Since the proportion of the stairs we designed is the proportion of the stairs in our dormitory, in order to adapt to more different stairs, we only need to adjust the angle of inclination slightly.

When the auxiliary cane 1 has been placed on the first step of the stairs, the user can use his strength calmly to step up a step. At this time, since the forearm cover 21 is set on the forearm, the crutch main body 3 will move upwards with the person. At this time, in order to prevent the crutch main body 3 from being in a free state, we have designed a parallel rod mechanism. At this time, we can control the state of the crutch main body 3 by controlling the handle. Crutches main body 3 follows the process of people going up one level of stairs, because people's forearm is up to 23-30cm (look up mechanical design manual and obtain, do not add wrist joint to palm length) higher than common stair height about 18cm. Therefore, people do not need to make special movements, and can complete the process of going upstairs very naturally.

As shown in Figure 2, when going up stairs, the steel wire will tighten the brake pad 42 to reach the deadlock state. When walking on flat ground or slopes, the state of the brake pads 42 can be adjusted by steel wires, and the braking device similar to a bicycle can be used to realize slow braking, making it easier for the user to control when on flat ground.

When going up a slope and walking on a flat road, the crutch main body 3 is separated from the auxiliary crutch 1, and the crutch main body 3 is used alone. When walking on flat roads, the crutches do not need to be lifted, and the rolling of the wheels 432 can be directly used to complete the forward movement, and the brake system can be used to control the exchange of the stopped state, so that a good labor-saving effect can be achieved. Lock the wheels when going up slopes. When two wheels were vacated, the gear cooperation of the limit mechanism 45 between the foot mechanism 4 and the crutch main body 3 was just released, and at this moment the foot mechanism could rotate. When force is applied to one foot, the entire foot mechanism rotates to adapt to the terrain. And when the two wheels touch the ground at the same time, there will be a clamping force at the main pole sleeve. At this time, the foot mechanism 4 is fixed relative to the crutch body 3 due to the gear engagement and locking. Give a stable support force, but also play a buffer role.

Claims (6)

1, a kind of combined crutch, it is characterized in that comprising a crutch main body, an armrest mechanism that is connected with crutch main body top and the foot mechanism that flexibly connects with the crutch lower body part, this foot mechanism comprises the position-limit mechanism of the two pairs of foot bodies, connecting pin body and the crutch main body that contact with ground.

2, combined crutch according to claim 1, each foot that it is characterized in that two pairs of foot bodies include a pillar, a wheel that flexibly connects with a column bottom, the braking mechanism on the wheel.

3, combined crutch according to claim 2 is characterized in that the braking mechanism on the wheel comprises that one is loaded on the steel wire of brake block, rim brake, connection brake block and the rim brake of foot pillar body.

4,, it is characterized in that an intercolumniation of foot body has some connecting rods according to claim 2 or 3 described combined crutch.

5, combined crutch according to claim 1, the position-limit mechanism that it is characterized in that foot mechanism comprises that one is fixed on the gag lever post of crutch bottom part body, the head gears engaged of gag lever post two ends and foot body, be provided with the connecting rod of spring and top band spacing hole between the every pair of foot body, the connecting rod two ends are movably connected on two foot bodies of every pair of foot body, and spacing hole is placed on the gag lever post.

6, combined crutch according to claim 1 is characterized in that armrest mechanism comprises a handle, three telescopic support bars; Support bar one end is connected in the crutch body head, and an end is movably connected on the handle.

Images