Wheelchair auxiliary stair climbing device

Abstract

The utility model discloses a wheelchair auxiliary stair climbing device, which relates to the technical field of wheelchair auxiliary equipment and comprises a base, first telescopic connecting plates are arranged on the left side and the right side of the base, fixing rods are rotatably arranged at the upper ends of the two first telescopic connecting plates in a penetrating manner, one ends of the fixing rods are fixedly mounted on the outer wall of the base, and the other ends of the fixing rods are fixedly mounted on the outer wall of the base. A first sleeve is fixedly connected to the lower end of the first telescopic connecting plate, a first lifting wheel is rotationally arranged outside the first sleeve, a movable groove is formed in the rear side of the base, second telescopic connecting plates are symmetrically arranged in the movable groove, and the upper ends of the two second telescopic connecting plates are rotationally arranged at the top of the movable groove through hinges. A second sleeve is fixedly connected to the lower end of the second telescopic connecting plate, a second lifting wheel is rotationally arranged outside the second sleeve, a stair climbing assembly is arranged on the first lifting wheel and the second lifting wheel, and the first lifting wheel and the second lifting wheel are circularly and alternately supported and ascend step by step. And carrying is not convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheelchair auxiliary equipment technical field especially relates to a wheelchair auxiliary stair climbing device. BACKGROUND

[0002] Wheelchair as an auxiliary tool, for the person who walks inconveniently can solve the walking problem by means of wheelchair, in medical treatment, in order to facilitate the personnel who is impaired or loses walking ability to move freely, adopt the tool of wheelchair to help these disabled people, wheelchair is equipped with wheel and can help to replace the chair for walking, divided into electric and manual folding wheelchair, for wounded, sick, disabled people home rehabilitation, turnover transportation, medical treatment, important mobile tool of going out activity, wheelchair not only satisfies the walking of the person who is physically disabled and inconvenient, more importantly, it is convenient for family members to move and take care of the patient, so that the patient exercises the body and participates in social activities by means of wheelchair.

[0003] Although wheelchair can move on the flat ground, but cannot climb on the stairs, at present, in order to facilitate wheelchair user to go up and down the stairs, many wheelchair stair climbing auxiliary devices appear, but these devices often need to install track, or carry out engineering modification to the stairs, and the problem of other places stairs appears again.

[0004] Therefore, in order to solve such problems, we propose a pedal structure of wheelchair. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a wheelchair auxiliary stair climbing device, which aims at solving the problems of the existing wheelchair auxiliary stair climbing device needing to install specific track, large engineering quantity and inconvenience to carry in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a wheelchair auxiliary stair climbing device, including base, the front side of base is provided with extension plate, the movable setting of two extension plates is provided with cross bar between, the outer portion of cross bar is equipped with fixed component, the top of base is fixedly provided with vertical rod, the top end of vertical rod is fixedly installed with control box, the left and right sides of base are provided with telescopic connecting plate no.

[0007] The climbing assembly comprises a motor fixedly installed in the inside of the sleeve one and the sleeve two respectively, the output end of the motor is fixedly connected with a rotating shaft, the tail end of the rotating shaft is rotatably penetrated through the side wall of the sleeve one and the sleeve two respectively, the tail end of the rotating shaft is fixedly provided with a driving plate, one end of the driving plate away from the rotating shaft is fixedly provided with a connecting rod, and the end of the connecting rod away from the driving plate is movably penetrated through and installed on the side wall of the base.

[0008] Preferably, equidistant positioning holes are arranged in the inside of the extension plate, a horizontal rod is movably penetrated through the inside of the positioning hole, and threaded covers are threadedly connected to the two ends of the horizontal rod.

[0009] Preferably, the fixing assembly comprises symmetrically arranged clamping plates one and two, bolts are threadedly connected to the inside of the clamping plates one and two, the bottom of the clamping plate two is fixedly connected with a bottom plate, a top plate is fixedly arranged on the outside of the clamping plate two above the bottom plate, a limiting block is movably hinged to the bottom of the top plate, and the bottom end of the limiting block is inclined to the clamping plate two.

[0010] Preferably, a wheelchair frame is arranged between the clamping plates one and two, and the horizontal rod is movably clamped between the limiting block, the bottom plate and the top plate.

[0011] Preferably, a display screen and a key are arranged on the top of the control box, and handles are fixedly installed on the two sides of the control box.

[0012] Preferably, support frames are rotatably arranged on the outside of the lifting wheels one and two, auxiliary wheels are fixedly arranged on the inside of the support frames, and anti-skid pads are wrapped on the outside of the auxiliary wheels.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] In the utility model, firstly, the motor in the sleeve one is started, the motor controls the rotating shaft to drive the driving plate to rotate counterclockwise, so as to drive the base to move upwards and backwards, until the lifting wheel two falls on the second level of stairs, and the motor in the sleeve two is started at the same time, so as to drive the base to move upwards and drive the lifting wheel one to fall on the second level of stairs, and the lifting wheel one and the lifting wheel two drive the wheelchair to climb the stairs step by step, the device avoids the problems of needing to install special tracks and reforming stairs, is convenient to carry, is suitable for various specifications of wheelchairs, is simple to operate, and guarantees the usability of the wheelchair. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the wheelchair structure schematic diagram of the utility model;

[0017] Figure 3 It is the base structure schematic diagram of the utility model;

[0018] Figure 4 It is fixed assembly structure schematic view of the utility model;

[0019] Figure 5 It is lifting wheel one structure schematic view of the utility model;

[0020] Figure 6 It is lifting wheel two structure schematic view of the utility model.

[0021] Legend:

[0022] 1, base; 11, movable slot; 12, frame; 2, extension plate; 21, positioning hole; 22, cross bar; 23, threaded cover; 3, fixed assembly; 31, clamping plate one; 32, clamping plate two; 33, bolt; 34, bottom plate; 35, top plate; 36, limiting block; 4, vertical rod; 5, control box; 51, display screen; 52, button; 53, handle; 6, telescopic connecting plate one; 61, fixed rod; 62, sleeve one; 63, telescopic connecting plate two; 64, sleeve two; 7, lifting wheel one; 8, lifting wheel two; 9, stair climbing assembly; 91, motor; 92, rotating shaft; 93, driving plate; 94, connecting rod; 10, auxiliary wheel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected. It can be mechanical connection, or electrical connection. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Referring to Figures 1-6 The utility model provides an embodiment: a wheelchair auxiliary stair climbing device, the front side symmetry of base 1 is provided with extension board 2, two extension boards 2 between the movable setting has cross bar 22, the outside of cross bar 22 is equipped with fixed assembly 3, through fixed assembly 3 installs the device on the wheelchair, the top fixed setting of base 1 has vertical rod 4, the top end fixed mounting of vertical rod 4 has control box 5, through control box 5 control whole device operation, the left and right sides of base 1 are provided with telescopic connecting plate no. 6, the upper end of two telescopic connecting plate no. 6 all are rotatable and are provided with fixed rod 61, and one end of fixed rod 61 is fixedly installed on the outer wall of base 1, and the lower end of telescopic connecting plate no. 6 is fixedly connected with sleeve no. 62, and the outside of sleeve no. 62 is rotatably provided with lifting wheel no. 7, and the rear side of base 1 is provided with movable slot 11, and the inside symmetry of movable slot 11 is provided with telescopic connecting plate no. 63, and the upper end of two telescopic connecting plate no. 63 all is rotatably arranged on the top of movable slot 11 through the hinge, and the lower end of telescopic connecting plate no. 63 is fixedly connected with sleeve no. 64, and the outside of sleeve no. 64 is rotatably provided with lifting wheel no. 8, and setting has stair climbing assembly 9 on lifting wheel no. 7 and lifting wheel no. 8;

[0026] Stair climbing assembly 9 includes motor 91 fixedly installed in sleeve no. 62 and sleeve no. 64 inside respectively, and the output end of motor 91 is fixedly connected with rotating shaft 92, and the tail end of rotating shaft 92 is rotatably penetrated through the side wall of sleeve no. 62 and sleeve no. 64 and is arranged, and the tail end of rotating shaft 92 is fixedly provided with driving plate 93, and the end away from rotating shaft 92 of driving plate 93 is fixedly provided with link rod 94, and the end away from driving plate 93 of link rod 94 is movably penetrated and is installed in the side wall of base 1 and is arranged, when needing to drive wheelchair to climb, slightly incline the device to back, make lifting wheel no. 7 abut against the first stage stair, start motor 91 in sleeve no. 62, and motor 91 controls rotating shaft 92 and drives driving plate 93 to rotate counterclockwise, to this driving base 1 upwards and moves back, until lifting wheel no. 8 falls on the second stage stair, at this moment, start motor 91 in sleeve no. 64, and motor 91 controls rotating shaft 92 and drives driving plate 93 to rotate counterclockwise a circle, driving base 1 moves upwards, make lifting wheel no. 7 fall on the second stage stair, adjust the position of lifting wheel no. 7, start motor 91 in sleeve no. 62 again and carry out cyclic movement, realize that wheelchair climbs the stair stage by stage.

[0027] The inside of extension board 2 is provided with locating hole 21 at equal distance, and the inside of locating hole 21 is movably penetrated through and is provided with cross bar 22, and the height of the frame 12 of wheelchair is used to adjust the position of cross bar 22, so that it is more suitable for actual wheelchair, and the both ends of cross bar 22 are screw-connected with screw cap 23, and cross bar 22 is positioned through screw cap 23, to avoid sliding.

[0028] The fixed assembly 3 comprises symmetrically arranged clamping plate one 31 and clamping plate two 32, the inside of the clamping plate one 31 and the clamping plate two 32 are threadedly connected with the bolt 33, the bottom of the clamping plate two 32 is fixedly connected with the bottom plate 34, the outside of the clamping plate two 32 above the bottom plate 34 is fixedly provided with the top plate 35, the bottom of the top plate 35 is movably hinged with the limiting block 36, the bottom end of the limiting block 36 is inclinedly hinged towards the clamping plate two 32, the wheelchair frame 12 is arranged between the clamping plate one 31 and the clamping plate two 32, the wheelchair frame 12 is passed between the clamping plate one 31 and the clamping plate two 32, and is fixed by the bolt 33, so that the clamping plate one 31 and the clamping plate two 32 are fixedly installed on the wheelchair frame 12, and the cross rod 22 is movably clamped between the limiting block 36, the bottom plate 34 and the top plate 35, when climbing stairs, the cross rod 22 is clamped into the inside of the limiting block 36, so as to connect the wheelchair with the stair climbing device.

[0029] The top of the control box 5 is provided with a display screen 51 and a button 52, the operation of the observation device is controlled through the display screen 51 and the button 52, and the two sides of the control box 5 are fixedly provided with handles 53.

[0030] The outside of the lifting wheel one 7 and the lifting wheel two 8 is rotatably provided with a support frame, the inside of the support frame is fixedly provided with an auxiliary wheel 10, the outside of the auxiliary wheel 10 is wrapped with a non-slip pad, and the auxiliary wheel 10 ensures the stability of the whole device.

[0031] Working principle: firstly, the clamping plate one 31 and the clamping plate two 32 are fixedly installed on the wheelchair frame 12 through the bolt 33, when the wheelchair needs to be driven to climb stairs, the cross rod 22 is clamped into the inside of the limiting block 36, so as to connect the wheelchair with the stair climbing device, the device is slightly inclined backward by holding the handle 53, the lifting wheel one 7 is abutted against the first stair, the motor 91 in the sleeve one 62 is started, the motor 91 controls the rotating shaft 92 to drive the plate 93 to rotate counterclockwise, so as to drive the base 1 to move upward and backward, until the lifting wheel two 8 falls on the second stair, at this time, the motor 91 in the sleeve two 64 is started, the motor 91 controls the rotating shaft 92 to drive the plate 93 to rotate counterclockwise for one circle, drives the base 1 to move upward, so that the lifting wheel one 7 falls on the second stair, when the position of the lifting wheel one 7 is adjusted, the motor 91 in the sleeve one 62 is started again to realize the cycle movement, and the wheelchair realizes stair climbing step by step.

[0032] Finally, it should be noted that: the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or equivalent replacement is carried out to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A wheelchair assisted stair climbing device comprising a base (1) characterised in that: The front side of the base (1) is symmetrically provided with extension plates (2), two extension plates (2) are movably provided with a cross rod (22), the outside of the cross rod (22) is sleeved with a fixing assembly (3), the top of the base (1) is fixedly provided with a vertical rod (4), the top end of the vertical rod (4) is fixedly installed with a control box (5), the left and right sides of the base (1) are provided with telescopic connecting plates (6), the upper ends of the two telescopic connecting plates (6) are rotatably provided with fixed rods (61), one end of the fixed rod (61) is fixedly installed on the outer wall of the base (1), the lower end of the telescopic connecting plate (6) is fixedly connected with a sleeve (62), the outside of the sleeve (62) is rotatably provided with a lifting wheel (7), the rear side of the base (1) is provided with a movable groove (11), the inside of the movable groove (11) is symmetrically provided with telescopic connecting plates (63), the upper ends of the two telescopic connecting plates (63) are rotatably provided on the top of the movable groove (11) through hinges, the lower end of the telescopic connecting plate (63) is fixedly connected with a sleeve (64), the outside of the sleeve (64) is rotatably provided with a lifting wheel (8), the lifting wheels (7) and (8) are provided with a stair climbing assembly (9); The stair climbing assembly (9) comprises motors (91) fixedly installed in the sleeves (62) and (64) respectively, the output end of the motor (91) is fixedly connected with a rotating shaft (92), the end of the rotating shaft (92) is rotatably provided through the side walls of the sleeves (62) and (64) respectively, the end of the rotating shaft (92) is fixedly provided with a driving plate (93), one end of the driving plate (93) away from the rotating shaft (92) is fixedly provided with a connecting rod (94), one end of the connecting rod (94) away from the driving plate (93) is movably provided in the side wall of the base (1).

2. The wheelchair-assisted stair climbing device according to claim 1, wherein: The inside of the extension plate (2) is provided with equidistantly arranged positioning holes (21), the inside of the positioning hole (21) is movably provided with a cross rod (22), and the two ends of the cross rod (22) are threadedly connected with threaded covers (23).

3. The wheelchair-assisted stair climbing device of claim 1, wherein: The fixing assembly (3) comprises symmetrically arranged clamping plates (31) and (32), the inside of the clamping plates (31) and (32) is threadedly connected with a bolt (33), the bottom of the clamping plate (32) is fixedly connected with a bottom plate (34), the outside of the clamping plate (32) above the bottom plate (34) is fixedly provided with a top plate (35), the bottom of the top plate (35) is movably hinged with a limiting block (36), and the bottom end of the limiting block (36) is inclined to the clamping plate (32).

4. A wheelchair assisted stair climbing device according to claim 3, wherein: The clamping plates (31) and (32) are provided with a wheelchair frame (12), and the cross rod (22) is movably clamped between the limiting block (36), the bottom plate (34) and the top plate (35).

5. The wheelchair-assisted stair climbing device of claim 1, wherein: The top of the control box (5) is provided with a display screen (51) and a key (52), and the two sides of the control box (5) are fixedly installed with handles (53).

6. The wheelchair-assisted stair climbing device of claim 1, wherein: The outside of the lifting wheels (7) and (8) is rotatably provided with a support frame, the inside of the support frame is fixedly provided with an auxiliary wheel (10), and the outside of the auxiliary wheel (10) is wrapped with a non-slip pad.

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