CN219646182U - Folding crutch - Google Patents

Abstract

The utility model relates to a folding crutch, which includes a pair of upper support rods, axillary supports and a pair of lower support plates. The two lower support plates are provided with arcuate grooves on the inside. The upper support rod, the lower support plate and the lower support rod pass through a pair of The two upper support rods are connected by horizontal connecting shafts; the rod bodies of the two upper support rods are provided with multiple pairs of adjustment holes, and the rod body of one upper support rod is sleeved with a ring sleeve. There are screw holes on both sides of the ring sleeve, and the screw rods are connected and fixed with the adjustment holes. There are cards arranged vertically on both sides of the inner surface of the ring sleeve. There is a rotating shaft between the two cards. A handle is connected to the rotating shaft. A limit hole is provided on the outer end surface of the handle away from the rotating shaft. There is a limit hole on the inner side of the other upper support rod. There are a plurality of slot brackets corresponding to cards with different adjustment positions. The adjustment hole corresponding to the rod body just passes through the slot brackets. A screw rod with a nut exposed to the outer wall of the rod body is screwed on the adjustment hole corresponding to the rod body. This crutch stores quickly, neatly and beautifully.

Description

folding crutches

Technical field

The utility model relates to the technical field of medical care, in particular to a folding crutch.

Background technique

Armpit crutches are mainly used to assist people with limited mobility. When the crutches are supported under the armpits by the strength of the body, hands and feet, they can achieve the purpose of supporting part or all of the body weight to move the body. Generally, armpit crutches are fixed type. This kind of structure is simple and firm, but it is extremely inconvenient during packaging, transportation, carrying and storage. Currently, a folding method is used to design underarm crutches. One type is to use a rope body to connect the socket connecting tubes. When in use, the tube body is socketed, and when stored, the sleeve is disassembled and folded in half. Although this structure realizes the folding of the crutch. Function, but in the folded state, the rope body is used as a connection, and each column section cannot be fixed, making it inconvenient to grasp and store; another type is a crutch that is folded and stored by rotating the rod body. For example, the patent publication number is CN203815826U discloses a folding crutch. The lower part of the support frame is hinged with the upper part of the support foot pole and locked by a locking mechanism. The locking mechanism adopts a spring buckle structure. This structure is easy to use but the clamping is not firm, especially the support. When the foot pole is used for a long time, it will be shaken by lateral force, which may easily cause safety accidents. In addition, in order to ensure that the supporting foot pole folds upward along the way, its handle is set to an arc-shaped bending structure to one side. This structure does not conform to the holding habits of human hands. , long-term use may cause discomfort. Therefore, although this patent achieves the purpose of convenient storage of foldable crutches and neatly taking up little space after storage, it cannot guarantee the safety and comfort of using the crutches.

Utility model content

In order to solve the shortcomings existing in the prior art, the utility model proposes a folding crutch that is quick to store, neat and beautiful, and safe and comfortable to use.

In order to achieve the above objects, the technical solutions adopted by the present utility model are as follows:

A folding crutch, including a pair of upper support rods, an axillary support connecting the tops of the two upper support rods, and a pair of lower support plates located inside the two upper support rods. The inner sides of the two lower support plates are provided with The arc-shaped groove holding the lower support rod is clamped. The upper support rod, lower support plate and lower support rod are connected through a transverse connecting shaft; one end of the transverse connecting shaft is provided with a fixed nut, and the other end is sleeved with the upper support A gasket in contact with the rod, a small connecting shaft is provided at the end of the transverse connecting shaft outside the gasket, a cylindrical connecting block is movably connected to the outside of the small connecting shaft, and a pressing piece is connected to one side of the cylindrical connecting block; The body of each upper support rod is provided with a plurality of pairs of adjustment holes. The body of one upper support rod is sleeved with a ring. Screw holes are provided on both sides of the ring, and the screw is connected to the adjustment hole through the screw. Connection and fixation; vertical cards are provided on both sides of the inner surface of the ring sleeve, and a rotating shaft is provided between the two cards. The rotating shaft is sleeved with handles whose diameters decrease from the middle to both ends. The handles A limit hole is provided on the outer end surface deviating from the rotating shaft; a plurality of slot brackets corresponding to the cards at different adjustment positions are provided on the inside of the other upper support rod, and the adjustment holes corresponding to the rod body just pass through the slot brackets. A screw rod with a nut exposed to the outer wall of the rod is screwed on the adjustment hole corresponding to the rod body.

Furthermore, a missing angle is milled out from the top of the inner wall surface of the slot bracket through an arc-shaped upper bend connected to the inner wall surface of the upper support rod.

Furthermore, the surface of the handle that contacts the card is embedded with a sphere protruding from the surface, and the card is provided with round holes at the position of the sphere when the handle is in the unfolded state and the folded state.

Further, the nut on the screw rod is wrapped with a screw head, and a push rod is provided on the side of the screw head.

Further, the side of the gasket in contact with the columnar connection block is an arc-shaped concave surface.

Further, the lower support rod includes a large casing and a small casing that are connected to each other. The large casing is provided with a plurality of casing adjustment holes, and the upper part of the small casing is provided with small holes. An exposed convex ball is installed in the hole, and the inside of the convex ball is connected to the inner wall of the small casing through a spring; in the socket state, the convex ball protrudes from the casing adjustment hole.

Furthermore, the end of the small sleeve is sleeved with a support pad made of rubber or plastic.

Furthermore, the bottom of the arm rest is provided with a block that matches the size of the support pad.

Further, a second gasket is provided between the fixing nut and the upper support rod.

The beneficial effects of this utility model are:

On the one hand, the foldable crutch of the present invention has a handle that is foldable, and the handle maintains comfort that conforms to the hand holding shape. After the handle is folded, the lower support rod can be rotated and stored between the upper support rods, forming a flat surface as a whole. The storage body is simple to operate, neat and beautiful; because the lower support rod is clamped by the groove-connected lower support plate when lowering the support rod, the lower support rod body is stable and safe during use. The crutch can also adjust the handle position according to different people's height and arm length, and the lower support rod can be telescopically adjusted, making it suitable for a wider range of people.

Description of the drawings

Figure 1 is a schematic structural diagram of the folding crutch of Embodiment 1;

Figure 2 is a schematic structural diagram of the handle in an unfolded state according to Embodiment 1;

Figure 3 is a schematic structural diagram of the handle in a stowed state in Embodiment 1;

Figure 4 is a schematic structural diagram of the folding crutch of Embodiment 2;

Figure 5 is a schematic structural diagram of the crutch in a folded state according to Embodiment 2.

Detailed ways

The specific implementation of the structural schematic diagram of a folding crutch of the present invention will be further described below with reference to the embodiments.

Figure 1-2 shows a folding crutch, including a pair of upper support rods 1, an axillary support 2 connecting the tops of the two upper support rods 1, and a pair of lower support plates located inside the two upper support rods 1. 3. An arc-shaped groove 4 is provided on the inside of the two lower support plates 3 to clamp the lower support rod 5. The upper support rod 1, the lower support plate 3 and the lower support rod 5 are connected through a transverse connecting shaft 10; One end of the transverse connecting shaft 10 is provided with a fixed nut 11, and the other end is sleeved with a gasket 12 that contacts the upper support rod 1. The end of the transverse connecting shaft 10 outside the gasket 12 is provided with a small connecting shaft 14, so A cylindrical connecting block 15 is movably connected to the outside of the small connecting shaft 14, and a pressing member 16 is connected to one side of the cylindrical connecting block 15; multiple pairs of adjustment holes 17 are provided on the rod bodies of the two upper support rods 1. A ring sleeve 6 is connected to the rod body of the above-mentioned support rod 1. Screw holes are provided on both sides of the ring sleeve 6, and are connected and fixed with the adjustment hole 17 through screw rods; vertical sleeves 6 are provided on both sides of the inner surface of the ring sleeve 6. The cards 60 are arranged toward each other. A rotating shaft 61 is provided between the two cards 60. The rotating shaft 61 is sleeved with a handle 7 whose diameter decreases from the middle to both ends. The handle 7 is located on an outer end surface deviating from the rotating shaft 61. There is a limiting hole 70; the inner side of the other upper support rod 1 is provided with a plurality of slot brackets 62 corresponding to the cards 60 at different adjustment positions, and the adjustment hole 17 corresponding to the rod body just passes through the slot brackets 62. Corresponding to the adjustment hole 17 of the rod body, a screw rod 8 with a nut exposed to the outer wall of the rod is screwed. When folding the folding crutch, first loosen the screw at the end of the handle, then turn the handle upward, then lift the pressing member, place the transverse connecting shaft in a relaxed state, rotate the lower support rod, and rotate its tail to the middle of the upper support rod. For storage, the pressing member can be pressed down and turned to the locking state to fix the lower support rod, and the entire folded rod body forms a flat surface, which is neatly folded and beautiful.

The top of the inner wall surface of the slot bracket 62 is connected to the inner wall surface of the upper support rod 1 through an arc-shaped upward curve and is milled with a notch to facilitate smooth folding or unfolding of the handle.

The surface of the handle 7 that contacts the card 60 is embedded with a sphere 71 protruding from the surface. The card 60 is provided with a round hole 72 at the position of the sphere 71 when the handle 7 is in the unfolded state and the folded state. As shown in Figure 2-3, when using, pull the handle down to the bracket, and the ball will fit into the round hole below, and lock it with the screw 8; when storing, loosen the screw, turn the handle upward, and the ball will Just click into the round hole above to achieve fixation.

The nut on the screw rod 8 is wrapped with a screw head 80, and a push rod 81 is provided on the side of the screw head 80. This structure is convenient for manual operation.

The side of the gasket 12 that contacts the columnar connection block 15 is an arc-shaped concave surface.

Example 2

On the basis of Example 1, the following improvements were made to the crutch.

As shown in Figure 4, the lower support rod 5 includes a large casing 50 and a small casing 51 that are connected to each other. The large casing 50 is provided with a plurality of casing adjustment holes 52. The upper part of the small casing 51 There is a small hole, and an exposed convex ball 53 is installed in the small hole. The inside of the convex ball 53 is connected to the inner wall of the small sleeve 51 through a spring; in the socket state, the convex ball 53 moves from the The sleeve adjustment hole 52 extends. This kind of telescopic hole structure is a commonly used structure in this field.

The end of the small sleeve 51 is sleeved with a support pad 9 made of rubber or plastic, which is anti-slip and firm.

The bottom of the arm rest 2 is provided with a block 90 that matches the size of the support pad 9 and is used to fix the lower support rod in the folded state. At this time, the user can fix the lower support rod without locking the transverse connecting shaft. Makes operation more convenient.

A second gasket 13 is provided between the fixing nut 11 and the upper support rod 1 .

The above embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model; those of ordinary skill in the relevant technical fields can understand the technical solutions without departing from the spirit and scope of the present utility model. Various changes and modifications can also be made, so all equivalent technical solutions also belong to the scope of the present utility model, and the patent protection scope of the present utility model should be limited by each claim.

Claims (9)

1. The foldable crutch comprises a pair of upper supporting rods (1), an armpit support (2) connected with the tops of the two upper supporting rods (1) and a pair of lower supporting rods (3) arranged on the inner sides of the two upper supporting rods (1), and is characterized in that arc-shaped grooves (4) for clamping the lower supporting rods (5) are formed on the inner sides of the two lower supporting rods (3), and the upper supporting rods (1), the lower supporting rods (3) and the lower supporting rods (5) are connected through a transverse connecting shaft (10); one end of the transverse connecting shaft (10) is provided with a fixing nut (11), the other end of the transverse connecting shaft is sleeved with a gasket (12) which is contacted with the upper supporting rod (1), the end part of the transverse connecting shaft (10) at the outer side of the gasket (12) is provided with a small connecting shaft (14), the outer part of the small connecting shaft (14) is movably sleeved with a columnar connecting block (15), and one side of the columnar connecting block (15) is connected with a pressing piece (16); a plurality of adjusting holes (17) are formed in the rod bodies of the two upper support rods (1), a ring sleeve (6) is sleeved on the rod body of one upper support rod (1), screw holes are formed in two sides of the ring sleeve (6), and the ring sleeve is fixedly connected with the adjusting holes (17) through screws; the two sides of the inner surface of the ring sleeve (6) are provided with vertically arranged clamping pieces (60), a rotating shaft (61) is arranged between the two clamping pieces (60), a handle (7) with the diameter decreasing from the middle part to the two ends is sleeved on the rotating shaft (61), and a limiting hole (70) is formed in the outer end surface of the handle (7) deviating from the rotating shaft (61); the inner side of the other upper supporting rod (1) is provided with a plurality of brackets (62) corresponding to the clamping pieces (60) at different adjusting positions, the adjusting holes (17) corresponding to the rod body just penetrate through the brackets (62), and a screw (8) with a nut exposed to the outer wall of the rod body is screwed on the adjusting holes (17) corresponding to the rod body.

2. The foldable crutch as set forth in claim 1, characterized in that a unfilled corner is milled on the track above the inner wall surface of the bracket (62) connected to the inner wall surface of the upper support rod (1) by arc-shaped upward bending.

3. The folding crutch as claimed in claim 1, characterized in that the surface of the handle (7) in contact with the card (60) is embedded with a sphere (71) protruding from the surface, the card (60) being provided with a circular hole (72) in the sphere (71) position both when the handle (7) is in the unfolded state and in the folded state.

4. The folding crutch as claimed in claim 1, characterized in that the screw cap on the screw (8) is wrapped with a screwing head (80), the side of the screwing head (80) being provided with a push rod (81).

5. The folding crutch as claimed in claim 1, characterized in that the side of the pad (12) in contact with the cylindrical connecting block (15) is an arc-shaped concave inner surface.

6. The folding crutch according to claim 1, characterized in that the lower supporting rod (5) comprises a large sleeve (50) and a small sleeve (51) which are sleeved with each other, a plurality of sleeve adjusting holes (52) are arranged on the large sleeve (50), small holes are arranged on the upper part of the small sleeve (51), exposed convex balls (53) are arranged in the small holes, and the inside of the convex balls (53) is connected with the inner wall of the small sleeve (51) through springs; in the sleeved state, the convex ball (53) extends out of the sleeve adjusting hole (52).

7. The folding crutch as claimed in claim 6, characterized in that the end of the small sleeve (51) is sheathed with a support pad (9) made of rubber or plastic.

8. The folding crutch as claimed in claim 7, characterized in that the bottom of the armpit rest (2) is provided with a clamping block (90) which is matched with the supporting pad (9) in size.

9. The folding crutch as claimed in claim 1, characterized in that a second spacer (13) is provided between the fixing nut (11) and the upper support bar (1).