CN218899982U

CN218899982U - Hand-push braking parking device of wheelchair

Info

Publication number: CN218899982U
Application number: CN202222902979.4U
Authority: CN
Inventors: 陈培新
Original assignee: Foshan Nanhai Anjian Medical Equipment Fittings Co ltd
Current assignee: Foshan Nanhai Anjian Medical Equipment Fittings Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-04-25
Anticipated expiration: 2032-11-01

Abstract

A hand brake parking device for a wheelchair, comprising: the wheelchair comprises a hand push rod, a brake rod, a sliding block and a locking mechanism, wherein the hand push rod is used for pushing or pulling a wheelchair, right-angle connecting pieces are arranged at two ends of the hand push rod, a cylindrical hole used for connecting a chair back, a first travel groove used for sliding the sliding block and a second travel groove used for sliding the brake rod are arranged at one end of the right-angle connecting pieces, which is far away from the hand push rod, the cylindrical hole is provided with a fixing hole used for installing the locking mechanism, and the locking mechanism is fixed on the fixing hole; the sliding block is arranged in the first travel groove and slides relatively; the braking rod is arranged on the sliding block and relatively slides in the second travel groove, the push rod is connected to the back of the wheelchair, and pushing force or pulling force applied to the wheelchair can directly act in the forward or backward direction of the wheelchair, so that the wheelchair is more labor-saving in use; the brake rod is arranged below the hand push rod, and the cooperation of the sliding block and the locking mechanism enables the wheelchair to take braking measures simultaneously when being pushed or pulled, so that pushing force or pulling force cannot be lost.

Description

Hand-push braking parking device of wheelchair

Technical Field

The utility model belongs to the field of wheelchair braking systems, and particularly relates to a hand-push braking parking device of a wheelchair.

Background

The wheelchair is used as equipment for assisting mobility impaired people and disabled people to move, is a necessary transportation means for disabled people, has a wide application range and can be used in hospitals and families, the hand push rods of the traditional hand push type wheelchair are arranged at two ends of the headrest, are parallel to the ground and face forwards and backwards, and the braking devices are arranged on the hand push rods, such as the following patents: CN201710573889.6 shows that this mode requires palm grip to act on the push rod to generate friction to achieve pushing or pulling, and cannot directly act on the pushing or pulling direction, so that the grip required when in an uphill or downhill condition is larger, and if braking action is taken, the grip is lost, which brings inconvenience to the user, so that a wheelchair hand-push braking parking device is designed, which can directly act on the pushing or pulling direction and can simultaneously take braking or parking.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a wheelchair hand-push braking parking device which can directly apply force in a pushing or pulling direction and can simultaneously brake or park.

The technical scheme adopted for solving the technical problems is as follows:

a hand brake parking device for a wheelchair, comprising: the wheelchair comprises a hand push rod, a brake rod, a sliding block and a locking mechanism, wherein the hand push rod is used for pushing or pulling a wheelchair, right-angle connecting pieces are arranged at two ends of the hand push rod, a cylindrical hole used for connecting a chair back, a first travel groove used for sliding the sliding block and a second travel groove used for sliding the brake rod are arranged at one end of the right-angle connecting pieces, which is far away from the hand push rod, a fixing hole, a first telescopic hole and a second telescopic hole used for installing the locking mechanism are formed in the cylindrical hole, and the locking mechanism is fixed on the fixing hole; the sliding block is installed in the first travel groove to relatively slide; the brake rod is mounted on the slider and relatively slides in the second travel groove.

As a further improvement of the present utility model, the locking mechanism includes: the device comprises a button, a fixed pin, a spring and a fixed seat, wherein the button is fixed at the front end of the fixed pin; the fixed pin includes anterior segment, middle section and back end, anterior segment diameter equals first expansion hole diameter, the middle section diameter is greater than anterior segment diameter just the middle section diameter equals the second expansion hole diameter, the back end diameter is less than the middle section diameter, the fixing base is fixed on the fixed orifices, the fixing base is equipped with and is used for installing the fixed pin with the cavity of spring, the spring is installed the back end with between the fixing base.

As a further improvement of the utility model, the sliding block is in a cuboid shape, a first hole for installing the brake rod, a second hole for locking the fixing pin, a third travel groove for sliding the fixing pin relative to the sliding block and a clamping groove for fixing the brake cable head part are arranged in the sliding block, the diameter of the second hole is larger than the diameter of the middle section, and the width of the third travel groove is smaller than the diameter of the middle section.

As a further improvement of the utility model, the right-angle connecting piece, the sliding blocks and the locking mechanism form a braking mechanism of the wheelchair, two groups of braking mechanisms are arranged, the two groups of braking mechanisms are symmetrically arranged at two ends of the hand push rod, two ends of the braking rod are arranged on the first holes of the two sliding blocks, and the two groups of braking mechanisms can independently perform braking or parking actions.

Compared with the prior art, the utility model has the following advantages and effects: the hand push rod is connected to the chair back of the wheelchair through the right-angle connecting piece, and pushing force or pulling force applied to the wheelchair can directly act in the forward or backward direction of the wheelchair, so that the wheelchair is more labor-saving when in use; the brake rod is arranged below the hand push rod, and the cooperation of the sliding block and the locking mechanism enables the wheelchair to take braking or braking measures simultaneously when being pushed or pulled, so that pushing force or pulling force cannot be lost.

Drawings

FIG. 1 is a perspective view of a hand brake parking device according to the present embodiment;

FIG. 2 is a partial cross-sectional view of the hand brake parking device of the present embodiment;

FIG. 3 is a cross-sectional view of a right angle connector of the present embodiment;

FIG. 4 is a perspective view of the locking mechanism of the present embodiment;

fig. 5 is a perspective view of the slider according to the present embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the present utility model is not limited to the following embodiments.

Examples:

as shown in fig. 1 to 5, the present embodiment discloses a hand-push braking parking device of a wheelchair, including: the wheelchair comprises a hand push rod 1, a brake rod 2, a sliding block 3 and a locking mechanism 4, wherein the hand push rod 1 is used for pushing or pulling a wheelchair, right-angle connecting pieces 6 are arranged at two ends of the hand push rod 1, a cylindrical hole 5 for connecting a chair back, a first travel groove 7 for sliding the sliding block 3 and a second travel groove 8 for sliding the brake rod 2 are arranged at one end of the right-angle connecting pieces 6, which is far away from the hand push rod, a fixing hole 9 for installing the locking mechanism 4, a first telescopic hole 10 and a second telescopic hole 11 are arranged on the cylindrical hole 5, and the locking mechanism 4 is fixed on the fixing hole 9; the sliding block 3 is arranged in the first travel groove 7 and can slide up and down; the brake lever 2 is mounted on the slide 3 so as to slide relatively in the second travel slot 8.

As a preferred embodiment, the locking mechanism 4 comprises: the button 12 is fixed at the front end of the fixed pin 13 for locking and disengaging the locking mechanism 4; the fixing pin 13 comprises a front section 16, a middle section 17 and a rear section 18, the diameter of the front section 16 is equal to that of the first telescopic hole 10 and is used for disengaging the locking mechanism 4 and the sliding block 3, the diameter of the middle section 17 is larger than that of the front section 16, the diameter of the middle section 17 is equal to that of the second telescopic hole 11 and is used for locking the locking mechanism 4, the diameter of the rear section 18 is smaller than that of the middle section 17 and is used for being matched with compression or rebound of the spring 14, the fixing seat 15 is fixed on the fixing hole 9, the fixing seat 15 is provided with a cavity for installing the fixing pin 13 and the spring 14, the spring 14 is installed between the rear section 18 and the fixing seat 15, the fixing pin 13 is disengaged from the sliding block 3 when the spring 14 is compressed, and the fixing pin 13 is locked with the sliding block 3 when the spring 14 rebounds.

As a preferred embodiment, the sliding block 3 is in a cuboid shape, a first hole 19 for installing the brake lever 2, a second hole 20 for locking the fixed pin 13, a clamping groove 22 for fixing the head of the brake cable and a third travel groove 21 for sliding the fixed pin 13 and the sliding block 3 are arranged in the sliding block 3, the diameter of the second hole 20 is larger than the diameter 17 of the middle section of the fixed pin 13, the middle section 17 can pass through the second hole, the width of the third travel groove 21 is smaller than the diameter of the middle section 17 to play a thrust role, the sliding block 3 can only slide in the third travel groove 21 by the front section 16, the brake lever 2 moves upwards to drive the sliding block 3 to slide upwards during braking, at the moment, the front section 16 slides relatively in the third travel groove 21, the spring 14 rebounds to enable the middle section 17 to pass through the second hole 20 when the front section 16 slides to the second hole 20, the sliding block 3 is locked for parking purpose, the middle section 17 is retracted into the second telescopic hole 11 by pressing the button 12, at the moment, the sliding block 3 slides downwards under the pulling force of the brake cable, and the parking effect is relieved.

As a preferred embodiment, the right-angle connecting piece 6, the sliding blocks 3 and the locking mechanism 4 form a braking mechanism of the wheelchair, two groups of braking mechanisms are arranged, the two groups of braking mechanisms are symmetrically arranged at two ends of the hand push rod 1, two ends of the braking rod 2 are arranged on the first holes 19 of the two sliding blocks 3, and the two groups of braking mechanisms can independently perform braking or parking actions.

The foregoing description of the utility model is merely exemplary of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. A hand-push braking parking device of a wheelchair, which is characterized in that: including handspike (1), brake lever (2), slider (3) and locking mechanical system (4), handspike (1) are used for promoting or pulling the wheelchair, handspike (1) both ends are equipped with right angle connecting piece (6), right angle connecting piece (6) keep away from the one end of handspike be equipped with be used for connecting cylinder hole (5) of back of the chair, be used for slider (3) gliding first travel groove (7) and be used for brake lever (2) gliding second travel groove (8), be equipped with fixed orifices (9), first telescopic hole (10) and second telescopic hole (11) that are used for installing locking mechanical system (4) on cylinder hole (5), locking mechanical system (4) are fixed on fixed orifices (9), slider (3) are installed and are slided relatively in first travel groove (7), brake lever (2) are installed on slider (3) are in relative slip in second travel groove (8).

2. A hand brake parking device for wheelchairs according to claim 1, characterized in that: the locking mechanism (4) comprises: button (12), fixed pin (13), spring (14) and fixing base (15), button (12) are fixed the front end of fixed pin (13), fixed pin (13) include anterior segment (16), middle section (17) and back end (18), anterior segment (16) diameter equals first telescopic hole (10) diameter, middle section (17) diameter is greater than anterior segment (16) diameter and middle section (17) diameter equals second telescopic hole (11) diameter, back end (18) diameter is less than middle section (17) diameter, fixing base (15) are fixed on fixed hole (9), fixing base (15) are equipped with and are used for installing fixed pin (13) with cavity of spring (14), spring (14) are installed between back end (18) and fixing base (15).

3. A hand brake parking device for wheelchairs according to claim 2, characterized in that: the sliding block (3) is in a cuboid shape, a first hole (19) for installing the brake rod (2), a second hole (20) for locking the fixing pin (13), a third travel groove (21) for enabling the fixing pin (13) to slide relative to the sliding block (3) and a clamping groove (22) for fixing the brake cable head are arranged in the middle of the sliding block (3), the diameter of the second hole (20) is larger than the diameter of the middle section (17), and the width of the third travel groove (21) is smaller than the diameter of the middle section (17).

4. A hand brake parking device for a wheelchair according to claim 3, wherein: the right angle connecting piece (6), the sliding blocks (3) and the locking mechanism (4) form a braking mechanism of the wheelchair, two groups of braking mechanisms are arranged, the two groups of braking mechanisms are symmetrically arranged at two ends of the hand push rod (1), two ends of the braking rod (2) are respectively arranged on first holes (19) of the two sliding blocks (3), and the two groups of braking mechanisms can independently perform braking or parking actions.