CN105310866A - Multifunctional axillary crutch - Google Patents

Abstract

The invention discloses a multifunctional axillary crutch. The multifunctional axillary crutch is characterized in that the crutch comprises a crutch head (1), a damping mechanism, a lower telescoping mechanism, a knee joint rotating mechanism, a folding mechanism, a middle telescoping mechanism, a hip joint rotating mechanism, an upper telescoping mechanism and an axillary support (13) which are sequentially connected from bottom to top; the lower telescoping mechanism is connected with the knee joint rotating mechanism through a lower locking mechanism, the hip joint rotating mechanism is connected with the upper telescoping mechanism through an upper locking mechanism, and a handle (18) is arranged on the side portion of the middle telescoping mechanism. By the adoption of the multifunctional axillary crutch, disabled people in lower limbs can be assisted in walking at a normal gait to the greatest extent, and other secondary injuries are avoided to a certain degree.

Description

A multifunctional armpit

technical field

The invention relates to an auxiliary tool for disabled persons, in particular to a multifunctional armpit crutch.

Background technique

The results of the second national sampling survey on disabled persons show that among the disabled with physical disabilities in my country, those who use canes and crutches account for 49% of the total disabled population who use assistive devices. However, traditional axillary crutches generally have a double-fork structure, which is not only bulky and difficult to carry, but also has a single function, which only has the function of assisting walking. When the user walks with general axillary crutches, that is, under the abnormal gait of holding crutches, there will be adverse effects such as body instability, improper step length, excessive energy consumption, and other secondary injuries may also occur.

Contents of the invention

The purpose of the present invention is to provide a multifunctional armpit. The invention can assist disabled persons of lower limbs to walk with normal gait to the greatest extent, and avoid other secondary injuries to a certain extent.

The technical solution of the present invention: a multi-functional axillary crutch, characterized in that it includes a cane head connected sequentially from bottom to top, a shock absorbing mechanism, a lower telescopic mechanism, a rotating mechanism at the knee joint, a folding mechanism, a middle telescopic mechanism, and a hip joint. The rotating mechanism at the hip joint, the upper telescopic mechanism and the arm support, the lower telescopic mechanism is connected with the rotating mechanism at the knee joint through the lower locking mechanism, the rotating mechanism at the hip joint is connected with the upper telescopic mechanism through the upper locking mechanism, and the A handle is provided on the side of the middle telescopic mechanism.

In the aforementioned multifunctional armpit crutches, the shock absorbing mechanism includes a connecting piece and a connecting pipe, the connecting piece and connecting pipe are fixed to the lower part of the lower telescopic mechanism through two symmetrically arranged limit bolts, and the end of the connecting pipe is provided with a rod head; the lower end of the lower telescopic mechanism is provided with a protrusion, and a lower spring is provided between the protrusion and the connector.

In the aforementioned multifunctional armpit crutches, the lower telescoping mechanism includes a lower tube with a hollowed-out lower end, the lower tube is covered with a lower sleeve, and a circular shrapnel is arranged between the lower tube and the lower sleeve.

In the aforementioned multifunctional axillary crutches, the rotation mechanism at the knee joint includes a lower fixed block and a lower rotating block, and the lower fixed block and the lower rotating block are connected via a lower shaft.

In the aforementioned multifunctional axillary crutches, the folding mechanism includes a folding block, which is connected to the rotating mechanism at the knee joint through a hinge.

In the aforementioned multifunctional armpit crutches, the middle telescopic mechanism includes a middle tube, the middle tube is covered with a middle sleeve, and a circular shrapnel is arranged between the middle tube and the middle sleeve.

In the aforementioned multifunctional axillary crutches, the rotation mechanism at the hip joint includes an upper rotating block and an upper fixed block, and the upper rotating block and the upper fixed block are connected via an upper shaft.

In the aforementioned multifunctional armpit crutches, the upper telescopic mechanism includes an upper tube, the upper tube is covered with an upper sleeve, and a circular shrapnel is arranged between the upper tube and the upper sleeve.

In the aforementioned multi-functional armpit crutches, the lower locking mechanism includes a stopper fixed on the lower telescopic mechanism through fixing bolts, the stopper is connected with a middle spring, and also includes a gas spring arranged in the lower telescopic mechanism, and one end of the gas spring protrudes To the outside of the stick head, the other end is connected with the rotating mechanism at the knee joint.

In the aforesaid multifunctional axillary crutches, the upper locking mechanism includes a limit rod arranged in the upper telescopic structure and connected to the rotation mechanism at the hip joint, and an upper spring is provided on the limit rod.

Compared with the prior art, the present invention effectively assists people with disabilities in lower limbs to walk with a normal gait to the greatest extent by organically connecting the rotating mechanism, the locking mechanism, the telescopic mechanism, the shock absorbing mechanism and the folding mechanism. avoid other secondary injuries. Based on the innovation and improvement of the traditional armpit crutches, the invention not only effectively realizes the function of a walking aid product, but also has an ingenious structure, a moderate volume and is convenient to carry.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of the second half of the present invention;

Fig. 3 is the schematic diagram of the bending state of the present invention;

Fig. 4 is a schematic diagram of the folded state of the present invention.

The marks in the drawings are: 1-stick head; 2-limit bolt; 3-lower spring; 4-lower tube; 5-lower casing; 6-lower fixed block; 7-lower rotating block; 8-folding block ;9-middle tube; 10-middle casing; 11-upper rotating block; 12-upper fixed block; 13-axillary support; 14-upper casing; 15-upper tube; 16-upper spring; 17-upper shaft; 18-handle; 19-hinge; 20-lower shaft; 21-connector; 22-connecting pipe; 23-gas spring; 24-fixing bolt; 25-block; 26-middle spring.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

Example. A multifunctional axillary crutch, whose composition is shown in Figures 1 and 2, is characterized in that it includes a cane head 1 sequentially connected from bottom to top, a shock absorbing mechanism, a lower telescopic mechanism, a rotation mechanism at the knee joint, a folding mechanism, and a middle telescopic mechanism. Mechanism, hip joint rotation mechanism, upper telescopic mechanism and arm support 13, the lower telescopic mechanism is connected with the knee joint rotation mechanism through the lower locking mechanism, and the hip joint rotation mechanism and the upper telescopic mechanism are locked through the upper locking mechanism. The mechanism is connected, and the side of the middle telescopic mechanism is provided with a handle 18.

The shock absorbing mechanism includes a connecting piece 21 and a connecting pipe 22. The connecting piece 21 and the connecting pipe 22 are fixed on the lower part of the lower telescopic mechanism through two symmetrically arranged limit bolts 2, and the end of the connecting pipe 22 is provided with a stick head 1 ; The lower end of the telescoping mechanism is provided with a protrusion, and a lower spring 3 is provided between the protrusion and the connector 21 .

The lower telescoping mechanism includes a lower tube 4 with a hollowed out lower end, the lower tube 4 is covered with a lower sleeve 5 , and a circular shrapnel is arranged between the lower tube 4 and the lower sleeve 5 . The connecting piece 21 and the connecting pipe 22 are fixed on the lower end of the down tube 4, and the protrusion is also arranged on the down tube.

The rotation mechanism at the knee joint includes a lower fixed block 6 and a lower rotating block 7 , which are connected via a lower shaft 20 . The lower fixing block 6 is fixed on the lower casing 5 .

The folding mechanism includes a folding block 8, and the folding block 8 is connected to the rotating mechanism at the knee joint through a hinge 19. The folding block 8 is connected with the lower rotating block 7 via a hinge 19 .

The middle telescoping mechanism includes a middle pipe 9, and a middle sleeve 10 is sheathed on the middle pipe 9, and a circular shrapnel is arranged between the middle pipe 9 and the middle sleeve 10. The middle pipe 9 is connected with the folding block 8 .

The rotating mechanism at the hip joint includes an upper rotating block 11 and an upper fixing block 12 , and the upper rotating block 11 and the upper fixing block 12 are connected via an upper shaft 17 . The upper rotating block 11 is connected with the middle casing 10 .

The upper telescoping mechanism includes an upper tube 15 , the upper tube 15 is covered with an upper sleeve 14 , and a circular shrapnel is arranged between the upper tube 15 and the upper sleeve 14 .

The lower locking mechanism includes a stopper 25 fixed on the lower telescopic mechanism through a fixing bolt 24, the stopper 25 is connected with a middle spring 26, and also includes a gas spring 23 arranged in the lower telescopic mechanism, and one end of the gas spring 23 stretches out to the pole. Outside the head 1, the other end is connected with the rotating mechanism at the knee joint.

The upper locking mechanism includes a limit rod arranged in the upper telescopic structure and connected with the rotation mechanism at the hip joint, and an upper spring 16 is arranged on the limit rod.

The lower fixing block 6, the lower rotating block 7, the upper rotating block 11, and the upper fixing block 12 in the two rotating mechanisms (the rotating mechanism at the knee joint and the rotating mechanism at the hip joint) have corresponding threaded holes respectively, which can be The turning mechanism can be locked by screwing the bolts into the two threaded holes, so that the armpit crutch is an ordinary one-piece armpit crutch.

Described upper and lower rotating blocks 11, 7 are all provided with a gap, and the limit lever and the gas spring snap into the gap and the rotating mechanism can be locked. The arc-shaped design of the notch can also guide the limit rod and the gas spring, which limits the reverse rotation of the rotating mechanism to a certain extent.

The telescoping mechanism is adjusted accordingly for the thigh, calf and upper body respectively. The outer sleeves 5, 10, 14 are connected with the inner tubes 4, 9, 15 through two circular shrapnels, and are stretched and adjusted by pressing the marbles.

The connecting piece 21 and the connecting pipe 22 are fixedly connected by two symmetrical stop bolts 2 , and the stick head 1 is installed on the connecting pipe 22 . The lower end part of the lower tube 4 is hollowed out, and the two bolts 2 fixing the connecting piece 21 and the connecting pipe 22 are stuck in the hollowed out part, which plays the role of connection and position limiting. The lower end of the lower tube 4 is welded with a small boss, and the lower spring 3 is installed between the connecting piece 21 and the small boss to play a shock-absorbing and buffering role.

The handle 18 is arranged on the middle casing 19, and its position is adjustable. The middle casing 19 is provided with positioning holes, and there is a certain interval between the positioning holes, and the position of the handle 18 can be adjusted according to the needs of use.

The folding block 8 and the lower rotating block 7 are provided with pin holes. When the user uses the crutches, first insert the straight pin into the pin hole to restrict the movement of the upper folding block and the above parts; when the crutches are idle, take out the straight pins and the crutches can be folded and placed.

The execution mode of the present invention is as follows:

When the axillary crutch is a common type, when the bolt is screwed into the threaded holes on the two rotating mechanisms, the two rotating mechanisms are fixed, and the axillary crutch is an upright common crutch.

When the axillary crutches are bound, the axillary crutches are bound to the lower limbs of the human body. During the walking process of the human body, when the foot touches the ground in the supporting stage, the gas spring 23 moves upward, that is, the other end of the gas spring 23 gradually snaps into the gap of the lower rotating block 7, and the lower spring 3 at the shock absorbing mechanism is gradually compressed. Tight, play the protective role of shock absorption and buffering, at this time, the rotation mechanism at the knee joint is locked; at the same time, the arm support 13 is pressed, the upper tube 15 and the upper sleeve 14 move down, the upper spring 16 is compressed, and the upper The limit rod fixedly connected to the pipe 15 is gradually snapped into the gap of the upper rotating block 11. At this moment, the rotating mechanism at the hip joint is locked, and the armpit crutches are in an upright state and support the weight of the human body. When in the swing stage, the lower limbs of the human body are not subjected to external force, and the axillary crutches are in an active state, that is, the lower spring 3, the middle spring 26 and the upper spring 16 reset, and the joint rotation mechanism can rotate freely, thereby completing a walking cycle. The bending state of the present invention is shown in FIG. 3 .

The folding state of the present invention is shown in FIG. 4 , and the folding block 8 and the lower rotating block 7 are provided with pin holes. When the user uses the crutches, first insert the cylindrical pin into the pin hole to limit the movement of the upper folding block and the above parts to avoid accidental folding; when the crutches are idle, take out the cylindrical pins to fold the crutches place.

Claims (10)

1. A multi-functional axillary crutch, characterized in that: it includes a cane head (1), a shock absorbing mechanism, a lower telescopic mechanism, a rotating mechanism at the knee joint, a folding mechanism, a middle telescopic mechanism, and a hip joint that are sequentially connected from bottom to top. The rotation mechanism, the upper telescopic mechanism and the arm support (13), the lower telescopic mechanism is connected with the knee joint rotation mechanism via the lower locking mechanism, the hip joint rotation mechanism is connected with the upper telescopic mechanism via the upper locking mechanism, A handle (18) is provided on the side of the middle telescopic mechanism. 2. The multifunctional armpit crutch according to claim 1, characterized in that: the shock absorbing mechanism includes a connecting piece (21) and a connecting pipe (22), and the connecting piece (21) and the connecting pipe (22) are arranged symmetrically The two limit bolts (2) are fixed on the lower part of the lower telescopic mechanism, and the end of the connecting pipe (22) is provided with a stick head (1); the lower end of the lower telescopic mechanism is provided with a protrusion, which is connected with the connecting piece A lower spring (3) is provided between (21). 3. The multifunctional armpit crutch according to claim 1, characterized in that: the lower telescopic mechanism includes a lower tube (4) with a hollow lower end, the lower tube (4) is covered with a lower casing (5), and the lower A circular shrapnel is arranged between the pipe (4) and the lower casing (5). 4. The multifunctional axillary crutch according to claim 1, characterized in that: the rotation mechanism at the knee joint includes a lower fixed block (6) and a lower rotating block (7), and a lower fixed block (6) and a lower rotating block (7) are connected through the lower shaft (20). 5. The multifunctional armpit crutch according to claim 1, characterized in that: the folding mechanism includes a folding block (8), and the folding block (8) is connected to the rotating mechanism at the knee joint via a hinge (19). 6. The multifunctional armpit crutch according to claim 1, characterized in that: the middle telescopic mechanism includes a middle tube (9), the middle tube (9) is covered with a middle sleeve (10), and the middle tube (9) A circular shrapnel is arranged between the middle sleeve pipe (10). 7. The multifunctional armpit crutch according to claim 1, characterized in that: the rotation mechanism at the hip joint includes an upper rotating block (11) and an upper fixing block (12), and an upper rotating block (11) and an upper fixing block (12) are connected through upper shaft (17). 8. The multifunctional armpit crutch according to claim 1, characterized in that: the upper telescopic mechanism includes an upper tube (15), the upper tube (15) is covered with an upper sleeve (14), and the upper tube (15) ) and the upper casing (14) is provided with a circular shrapnel. 9. The multifunctional armpit crutch according to any one of claims 1-8, characterized in that: the lower locking mechanism includes a stopper (25) fixed on the lower telescopic mechanism via a fixing bolt (24), and the stopper (25) is connected with the middle spring (26), and also includes the gas spring (23) arranged in the lower telescoping mechanism, one end of the gas spring (23) protrudes out of the stick head (1), and the other end is connected with the rotating mechanism at the knee joint . 10. The multi-functional armpit crutch according to any one of claims 1-8, characterized in that: the upper locking mechanism includes a limit rod arranged in the upper telescopic structure and connected with the rotation mechanism at the hip joint to limit An upper spring (16) is provided on the bit bar.