CN104337671B - A kind of folding crutch - Google Patents

Abstract

The invention discloses a foldable crutch, which consists of an underarm support rod, a connecting rod, a telescopic mechanism connector, a telescopic mechanism, a clamping block, and a leg support part connected in sequence; the underarm support rod and the connecting rod One end is respectively provided with a support rod revolving joint and a connecting rod revolving joint, and the supporting rod revolving joint and the connecting rod revolving joint are connected through a revolving joint connection shaft, and the underarm support rod is provided with a support rod auxiliary part; the connecting rod Handrails are provided on the top; the telescopic mechanism is installed on the connecting piece of the telescopic mechanism, and the telescopic mechanism includes a spring connection shaft, a spring, and a spring connection block connected in sequence; the clamping block is connected to the spring connection block in the telescopic mechanism through the rotating shaft Connection; the leg support part includes a pair of arc-shaped connecting rods, the lower part of the pair of arc-shaped connecting rods is provided with a leg connecting shaft, the outer side of the leg connecting shaft is provided with a U-shaped leg supporting rod, and the end of the leg connecting shaft Comes with a base.

Description

a folding cane

technical field

The invention relates to a foldable crutch, in particular to a foldable crutch with good stability.

Background technique

Crutches are the legs of the elderly, which can provide support for the walking of the elderly, especially for the elderly with poor legs and feet, the role of crutches is very important. Existing crutches are generally a J-shaped stick. When the elderly go out, they not only need crutches to provide support when walking, but also need to sit down and rest frequently. However, the traditional crutches have single functions, insufficient stability, cannot be retracted, cannot be cushioned by force, affect the use effect, and cannot be folded, which is inconvenient to use and often cannot meet the needs of users.

Contents of the invention

The object of the present invention is to provide a folding crutch. The invention can be stretched and folded, improves the use effect and convenience, has strong stability, and enhances comfort.

The technical solution of the present invention: a foldable crutch, characterized in that it includes an underarm support rod, a connecting rod, a telescopic mechanism connector, a telescopic mechanism, a clamping block, and a leg support part connected in sequence; One end of the support rod and the connecting rod is provided with a support rod revolving joint and a connecting rod revolving joint respectively, and the supporting rod revolving joint and the connecting rod revolving joint are connected by a revolving joint connection shaft, and the underarm support rod is provided with a support rod auxiliary part ; The connecting rod is provided with an armrest; the telescopic mechanism is installed on the telescopic mechanism connector, and the telescopic mechanism includes a spring connecting shaft, a spring, and a spring connecting block connected in sequence; The spring connection block in the middle is connected; the leg support part includes a pair of arc-shaped connecting rods, the lower part of the pair of arc-shaped connecting rods is provided with a leg connecting shaft, and the outer side of the leg connecting shaft is provided with a U-shaped leg supporting rod, and the legs The end of the connecting shaft is provided with a base.

In the aforementioned folding crutches, the upper surface of the support rod auxiliary part used for underarm support is arc-shaped and made of plastic.

In the aforementioned folding crutches, the connecting rod is provided with spaced positioning holes, and the handrails are arranged in different positioning holes as required.

In the aforementioned folding crutches, one end of the connecting rod is fixedly connected to the rotating joint of the connecting rod through a set screw, and the other end is fixedly connected to the connecting piece of the telescopic mechanism through a set screw.

In the aforesaid foldable crutches, one end of the underarm support rod is fixedly connected to the rotation joint of the support rod through a set screw.

In the aforementioned folding crutches, the two ends of the spring are respectively connected to the spring connecting shaft and the spring connecting block, the spring connecting shaft is fixed on the telescoping mechanism connecting piece, and the spring connecting block is axially fixed on the rotating shaft of the clamping block .

In the aforementioned folding crutches, the spring connection block is provided with a rectangular groove, and the corresponding position of the connecting part of the telescopic mechanism is provided with a rectangular groove.

In the aforementioned foldable crutches, the clamping block is provided with a vertical block and a rotating block, which are used to limit the position in the horizontal state; when the clamping block has a certain angle or is perpendicular to the connecting part of the telescopic mechanism, it can rotate to the horizontal position; due to the compression of the spring during use, the relative displacement changes (misalignment) between the rectangular groove on the spring connection block and the connecting piece of the telescopic mechanism and the rotation stopper occur, and the rotation stopper cannot pass through the rectangular groove, thereby causing To the limit function in the horizontal state.

In the aforementioned folding crutches, a pair of oppositely arranged arc-shaped connecting rods are provided on both sides of the clamping block, and the inner sides of the pair of arc-shaped connecting rods are provided with leg connecting shafts through set screws, and the pair of arc-shaped connecting rods The outer side of the U-shaped leg support bar is set by a set screw.

In the aforementioned foldable crutches, a leg rod fixing part is provided under the U-shaped leg support rod, which is fixedly connected with the leg connecting shaft through a set screw, so as to improve the connection reliability and stability of the leg support part. Sexuality.

Compared with the prior art, the present invention cleverly connects the armpit support rod, the connecting rod, the connecting piece of the telescopic mechanism, the telescopic mechanism, the clamping block, and the leg support part, so that it can be stretched and stretched by the spring during use, The force is cushioned to improve the use effect, and the folding function can be realized by rotating the connecting rod through the rotating shaft, which makes the use more convenient and quick. At the same time, the organic connection improves the stability and enhances the comfort. It can be used as an aid for the recovery of the injured. It can be used for walking, and can also be used as a long-term auxiliary tool for the disabled. The invention has the advantages of convenient folding, ingenious structure and various functions.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Figure 2 is a schematic diagram of the present invention in an extended state;

Fig. 3 is a structural schematic diagram of the clamping block and the telescoping mechanism in the folded state of the present invention;

Fig. 4 is a schematic structural view of the clamping block and the telescoping mechanism in the unfolded state of the present invention.

The marks in the drawings are: 1-connecting rod rotary joint, 2-rotary joint connecting shaft, 3-support rod rotary joint, 4-armpit support rod, 5-armrest, 6-positioning hole, 7-support rod auxiliary parts , 8-connecting rod, 9-telescopic mechanism connecting piece, 10-spring connecting shaft, 11-spring, 12-spring connecting block, 13-rotating shaft, 14-clamping block, 15-arc connecting rod, 16-leg Internal connection shaft, 17-set screw, 18-set screw, 19-u-shaped leg support rod, 20-leg rod fixing piece, 21-base, 22-telescopic mechanism, 23-foot support part, 141 - vertical stop, 142 - rotation stop, 143 - set screw.

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 foldable crutch, as shown in Figures 1-4, including an underarm support rod 4, a connecting rod 8, a telescopic mechanism connector 9, a telescopic mechanism 22, a clamping block 14, and a leg support part 23 connected in sequence; One end of the underarm support rod 4 and the connecting rod 8 is respectively provided with a support rod rotary joint 3 and a connecting rod rotary joint 1, and the support rod rotary joint 3 and the connecting rod rotary joint 1 are connected by a rotary joint connection shaft 2, so The underarm support rod 4 is provided with a support rod auxiliary part 7; the connecting rod 8 is provided with an armrest 5; the telescopic mechanism 22 includes a spring connecting shaft 10, a spring 11, and a spring connecting block 12 connected in sequence; The clamping block 14 is connected with the spring connection block 12 in the telescoping mechanism through the rotating shaft 13; the leg support part 23 includes a pair of arc-shaped connecting rods 15, and the lower part of the pair of arc-shaped connecting rods 15 is provided with a leg connecting shaft 16. A U-shaped leg support rod 19 is provided outside the leg connecting shaft 16, and a base 21 is provided at the end of the leg connecting shaft 16.

The upper surface of the support rod auxiliary part 7 used for armpit support is arc-shaped and made of plastic.

The connecting rod 8 is provided with spaced positioning holes 6 , and the handrails 5 are arranged in different positioning holes 6 as required.

One end of the connecting rod 8 is fixedly connected with the connecting rod rotary joint 1 through a set screw, and the other end is fixedly connected with the connecting piece 9 of the telescopic mechanism through a set screw.

One end of the underarm support rod 4 is fixedly connected with the support rod rotary joint 3 through a set screw.

Both ends of the spring 11 are respectively connected to the spring connecting shaft 10 and the spring connecting block 12, the spring connecting shaft 10 is fixed on the telescoping mechanism connector 9, and the spring connecting block 12 is axially fixed to the rotating shaft 13 of the clamping block 14 superior.

The spring connection block 12 is provided with a rectangular groove, and the corresponding position on the telescopic mechanism connecting piece 9 is provided with a rectangular groove. The clamping block 14 is provided with a vertical block 141 and a rotating block 142 (can pass through a rectangular groove), which are used for positioning in a horizontal state; When in use, it can be rotated to the horizontal position; due to the compression of the spring, the relative displacement (misalignment) between the rectangular groove on the spring connection block and the connecting piece of the telescopic mechanism and the rotation stopper occurs, and the rotation stopper cannot pass through the rectangular groove. Over, so as to play a limiting role in the horizontal state.

Both sides of the clamping block 14 are provided with a pair of oppositely arranged arc-shaped connecting rods 15 through set screws 143, and the inner sides of a pair of arc-shaped connecting rods 15 are provided with leg connecting shafts 16 through set screws 17. The outside of shape connecting rod 15 is provided with u-shaped leg support rod 19 through set screw 18.

Below the U-shaped leg support rod 19, there is a leg rod fixing part 20, which is fixedly connected with the leg connecting shaft 16 through a set screw, so as to improve the connection reliability and stability of the leg support part.

More preferably, the telescoping mechanism connector 9 includes a base block fixed on the connecting rod 8, and the base block is provided with long U-shaped pieces respectively arranged on both sides of the clamping block, inside the long U-shaped piece Install telescoping mechanism 22.

The use process of the present invention is as follows:

In the telescopic mechanism 22, the two ends of the spring 11 are respectively connected to the spring connection shaft 10 and the spring connection block 12, the spring connection shaft 10 is fixed on the telescopic mechanism connector 9, and the spring connection block 12 is axially fixed on the clamping On the axis of rotation 13 of the block 14. The spring connection block 12 is provided with a rectangular groove, and the corresponding position on the telescopic mechanism connecting piece 9 is also provided with a rectangular groove. The clamping block 14 is provided with a vertical stopper 141 and a rotary stopper 142 for positioning in a horizontal state.

When the person is in a non-upright state, the clamping block 14 has a certain angle or is perpendicular to the connecting piece 9 of the telescopic mechanism, and the rotation stopper 142 can pass through the rectangular groove on the spring connecting piece 12 and the rectangular groove on the connecting piece 9 of the telescopic mechanism ; when a person is standing, it can rotate to a horizontal position, consistent with the human body; when standing and using, due to the pressure exerted by the person on the underarm support rod, the spring 11 is compressed, and the rectangular groove of the spring connecting block 12 is connected to the The rectangular groove on the connecting piece 9 of the telescoping mechanism is misaligned, so that the rotation stopper cannot pass through, and the vertical stopper 141 and the rotation stopper 142 can play a limiting role in the horizontal state.

Claims (8)

1. a folding crutch, it is characterised in that: include the oxter support bar being sequentially connected with (4), connecting rod (8), telescoping mechanism connector (9), telescoping mechanism (22), clamping block (14), thigh support part (23)；Described oxter support bar (4) and connecting rod (8) One end is respectively equipped with support bar rotary joint (3) and connecting rod rotary joint (1), support bar By rotary joint connecting shaft (2) between rotary joint (3) and connecting rod rotary joint (1) Connecting, described oxter support bar (4) is provided with support bar auxiliary member (7)；Described connecting rod (8) handrail (5) it is provided with；Described telescoping mechanism (22) includes the spring being sequentially connected with Connecting shaft (10), spring (11), spring contiguous block (12)；Described clamping block (14) leads to Cross rotary shaft (13) to be connected with the spring contiguous block (12) in telescoping mechanism (22)；Described Thigh support part (23) includes a pair arc-shaped connecting rod (15), a pair arc-shaped connecting rod (15) Bottom is provided with leg connecting shaft (16), and leg connecting shaft (16) outside is provided with u-shaped leg and props up Strut (19), the end of leg connecting shaft (16) is provided with base (21)；Described spring (11) Two ends are connected on spring connecting shaft (10) and spring contiguous block (12), and spring connects Axle (10) is fixed on telescoping mechanism connector (9), and spring contiguous block (12) is axially solid In the rotary shaft (13) of clamping block (14), described clamping block (14) is provided with vertically Block (141) and rotary block (142), spacing for level.

Folding crutch the most according to claim 1, it is characterised in that: described support The upper surface that bar auxiliary member (7) supports for oxter is arcuation, is made of plastics.

Folding crutch the most according to claim 1, it is characterised in that: described connection Bar (8) is provided with tool hole, spaced location, and handrail (5) is arranged as required to different In hole, location.

Folding crutch the most according to claim 1, it is characterised in that: described company Extension bar (8) one end is fixedly connected with connecting rod rotary joint (1) by holding screw, The other end is fixedly connected with telescoping mechanism connector (9) by holding screw.

Folding crutch the most according to claim 1, it is characterised in that: described axil Lower support bar (4) one end is by holding screw and support bar rotary joint (3) company of being fixed Connect.

Folding crutch the most according to claim 1, it is characterised in that: described bullet Spring contiguous block (12) is provided with rectangular recess, the corresponding position on telescoping mechanism connector (9) Install rectangular recess.

Folding crutch the most according to claim 1, it is characterised in that: described card Tight block (14) both sides are provided with the arc-shaped connecting rod (15) of pair of opposing, and a pair arc is even The inner side of extension bar (15) arranges leg connecting shaft (16) through holding screw, and a pair arc connects The outside of bar (15) arranges u-shaped leg support bar (19) through holding screw.

8., according to the folding crutch described in claim 1-7 any one claim, it is special Levy and be: described u-shaped leg support bar (19) lower section is provided with leg bar fixture (20), It is fixedly connected by holding screw with leg connecting shaft (16), plays raising thigh support The connection reliability of part and the effect of stability.