Wheelchair convenient to brake

Abstract

The utility model discloses a wheelchair convenient to brake, which comprises a wheelchair main body and armrests, two sides of the wheelchair main body are respectively provided with a driving wheel, the wheelchair main body is provided with a brake component, and an adjusting component is arranged between the armrests and the wheelchair main body. The wheelchair comprises a wheelchair body, armrests, driving wheels and a brake component, the wheelchair body is fixedly connected with the armrests, the brake component comprises a control panel fixedly connected with the top of one armrest, vertical plates fixedly connected with the two sides of the top of the wheelchair body respectively, and motors fixedly connected with one sides of the vertical plates. The problems that in the prior art, although a wheelchair can be braked, a pressing block is manually pushed in the braking process, so that tires are braked, brake pads make contact with the tires for a long time, locking is likely to happen, a person sitting on the wheelchair is generally relatively weak, manual operation is needed for braking each time, a passenger is not comfortable enough, and therefore practicability is poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheelchair technical field, concretely is a kind of wheelchair of easy brake. BACKGROUND

[0002] Wheelchair is a kind of chair equipped with wheel, mainly used to replace walking, help the movement of the crowd of dysfunction, wounded, sick, old people and so on inconveniently move.It is divided into electric and manual two types, electric wheelchair reduces the physical consumption of user through electronic power system, and manual wheelchair is driven through hand shaking, hand pushing and so on.

[0003] The prior art patent CN221770621U discloses a kind of wheelchair of easy brake, including main body and the drive wheel being set in the both sides of main body, the side of drive wheel is fixed with hand ring, the top of the both sides of main body is fixed with handrail relative to the top of drive wheel, the bottom of handrail is provided with press brake mechanism, the surface of hand ring is provided with gripping antiskid mechanism, the press brake mechanism includes: brake assembly, setting in the bottom of handrail;The utility model can easily press brake without the wheelchair user bending down, while cooperating with the design of embedded groove, built-in groove and extension spring, brake pad and drive wheel can also be automatically separated when releasing press block, the effect of brake is removed, compared with prior art, greatly facilitate the brake work of wheelchair in driving.

[0004] Based on the above patent search, and in combination with the wheelchair in prior art, the above-mentioned wheelchair can brake the wheelchair when in use, but when braking, the tire is stopped by manually pushing the press block, the brake pad is in contact with the tire for a long time, which is easy to be locked, and the person sitting on the wheelchair is usually relatively weak, so each brake needs to be operated artificially, which is not comfortable for the passenger, thereby leading to poor practicability. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of wheelchair of easy brake to solve the problem that the existing wheelchair in the above background art can brake the wheelchair when in use, but when braking, the tire is stopped by manually pushing the press block, the brake pad is in contact with the tire for a long time, which is easy to be locked, and the person sitting on the wheelchair is usually relatively weak, so each brake needs to be operated artificially, which is not comfortable for the passenger, thereby leading to poor practicability.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of wheelchair of easy brake, including wheelchair main body and handrail, the both sides of wheelchair main body are respectively installed with drive wheel, brake component is equipped on wheelchair main body, adjustment component is equipped between handrail and wheelchair main body.

[0007] The brake part comprises a control panel fixedly connected with the top of one of the armrests, vertical plates fixedly connected with the top of the wheelchair body on both sides respectively, a motor fixedly connected with one side of the vertical plate, a rotating shaft fixedly connected with the output end of the motor, a cam fixedly connected with the outer side of the rotating shaft, a roller connected with the bottom of the cam, a vertical rod fixedly connected with the bottom of the roller, a brake pad fixedly connected with the bottom of the vertical rod, a horizontal plate fixedly connected with one side of the vertical plate, and a spring sleeved on the outer side of the vertical rod, the vertical rod penetrates through the horizontal plate and is slidably connected with the horizontal plate, the spring is fixedly connected with the roller and the horizontal plate at both ends respectively, and the rotating shaft is rotatably connected with the vertical plate.

[0008] Preferably, the adjusting part comprises connecting plates fixedly connected with the front of the wheelchair body on both sides respectively, adjusting grooves opened on the front of the connecting plates, adjusting blocks arranged in the adjusting grooves, lead screws connected with the adjusting blocks, and rotating knobs fixedly connected with the top of the lead screws, the lead screws are screwed with the adjusting blocks, the lead screws are rotatably connected with the connecting plates, the adjusting blocks are slidably connected with the adjusting grooves, and the adjusting blocks are fixedly connected with the armrests.

[0009] Preferably, a guide groove is opened on one side of the vertical plate, and a guide block is slidably connected in the guide groove, and a contact plate is fixedly connected between the guide block and the roller.

[0010] Preferably, push handles are fixedly connected with the top of the wheelchair body on both sides respectively, and anti-skid sleeves are fixedly connected with the outer side of the push handles.

[0011] Preferably, a plurality of protrusions arranged in a circumferential direction are arranged on the bottom of the brake pad, and the protrusions are fixedly connected with the brake pad.

[0012] Preferably, a buffer pad is sleeved on the outer side of the armrest, and the outer side of the buffer pad is arc-shaped.

[0013] Preferably, supporting legs are fixedly connected with the front of the wheelchair body on both sides respectively, and universal wheels are fixedly connected with the bottom of the supporting legs.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、By setting up the wheelchair body, the armrest, the driving wheel and the brake part, the motor can be started by the control panel, and then the rotating shaft and the cam can be driven to rotate, the cam can push the roller to move vertically, and then the spring can be deformed by being squeezed, the brake pad can be repeatedly moved up and down by the spring and the roller, and then the brake pad can be repeatedly separated from the driving wheel, so that the brake is realized, the situation of wheelie is prevented, manual braking is not needed, the labor intensity is reduced, the comfort of the passenger is improved, and the practicability and efficiency are greatly improved.

[0016] 2、By being provided with the adjusting component, the height of the handrail can be quickly adjusted by rotating the rotating knob to drive the screw rod to rotate, the adjusting block to vertically move and the handrail to vertically move, so that different personnel can use the wheelchair body, the application range can be improved and the practicality can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A front view provided by the utility model;

[0018] Figure 2 A left view provided by the utility model;

[0019] Figure 3 A front view provided by the utility model; Figure 2 A sectional view of A-A;

[0020] Figure 4 A front view provided by the utility model; Figure 3 An enlarged view of C;

[0021] Figure 5 A front view provided by the utility model;

[0022] Figure 6 A front view provided by the utility model; Figure 5 A sectional view of B-B;

[0023] In the drawing: 1, wheelchair body; 11, handrail; 12, driving wheel; 21, control panel; 22, vertical plate; 23, motor; 24, rotating shaft; 25, cam; 26, roller; 27, vertical rod; 28, brake pad; 29, horizontal plate; 30, spring; 31, connecting plate; 32, adjusting groove; 33, adjusting block; 34, screw rod; 35, rotating knob; 41, guide groove; 42, guide block; 43, contact plate; 51, pushing handle; 52, anti-skid sleeve; 61, protrusion; 71, buffer pad; 81, supporting leg; 82, universal wheel. DETAILED DESCRIPTION

[0024] 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 protection scope of the utility model.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides a technical scheme: a wheelchair of convenient brake, including wheelchair main body 1 and handrail 11, wheelchair main body 1 both sides are installed with drive wheel 12 respectively, be equipped with brake component on wheelchair main body 1, be equipped with adjusting component between handrail 11 and wheelchair main body 1, brake component includes with one of the handrail 11 top fixed connection's control panel 21, with wheelchair main body 1 top both sides fixed connection's vertical board 22, with vertical board 22 one side fixed connection's motor 23, with motor 23 output fixed connection's pivot 24, with pivot 24 outside fixed connection's cam 25, with cam 25 bottom link's gyro wheel 26, with gyro wheel 26 bottom fixed connection's vertical rod 27, with vertical rod 27 bottom fixed connection's brake pad 28, with vertical board 22 one side fixed connection's horizontal plate 29 and with spring 30 of vertical rod 27 outside sleeve, vertical rod 27 passes through horizontal plate 29 and with horizontal plate 29 slidingly connected, spring 30 both ends are fixedly connected with gyro wheel 26 and horizontal plate 29 respectively, pivot 24 is rotationally connected with vertical board 22, can start motor 23 using control panel 21, motor 23 can make pivot 24 rotate, and then can drive cam 25 rotation, cam 25 can push gyro wheel 26 to move down, and then can drive brake pad 28 to move down, can extrude spring 30 and make it change shape simultaneously, brake pad 28 moves down and contacts drive wheel 12, can realize brake function, can make brake pad 28 reciprocate up and down using cam 25 and spring 30 simultaneously, and then can prevent the situation of locking from appearing, can improve brake stability, prevent wheelchair main body 1 from rolling over, vertical board 22 one side is equipped with guide slot 41, guide block 42 is slidably connected in guide slot 41, and contact plate 43 is fixedly connected between guide block 42 and gyro wheel 26, gyro wheel 26 vertical movement can drive contact plate 43 and guide block 42 synchronous movement, the vertical movement of brake pad 28 can be guided through guide block 42, can improve its vertical movement stability, prevent brake pad 28 from skewing and deviating, wheelchair main body 1 top both sides are fixedly connected with push handle 51 respectively, push handle 51 outside is fixedly connected with antiskid sleeve 52, through push handle 51 can facilitate push wheelchair main body 1 and move, through antiskid sleeve 52 can increase the friction between hand and push handle 51, and then can prevent the situation of falling off from happening, brake pad 28 bottom is equipped with the multiple protrusions 61 in circumferential arrangement, protrusion 61 is fixedly connected with brake pad 28, protrusion 61 can increase the friction between brake pad 28 and drive wheel 12, so that wheelchair main body 1 can replace and stop, wheelchair main body 1 front both sides are fixedly connected with support leg 81 respectively, support leg 81 bottom is fixedly connected with universal wheel 82, through support leg 81 and universal wheel 82 can facilitate to support the front side of wheelchair main body 1, and simultaneously can facilitate the steering of wheelchair main body 1.

[0026] Please refer to Figure 1 、 Figure 5 and Figure 6The adjusting part comprises a connecting plate 31 fixedly connected with the wheelchair body 1 on both sides of the front face, an adjusting groove 32 opened on the front face of the connecting plate 31, an adjusting block 33 arranged in the adjusting groove 32, a lead screw 34 connected with the adjusting block 33, and a rotating knob 35 fixedly connected with the top of the lead screw 34, the lead screw 34 is screwed with the adjusting block 33, the lead screw 34 is rotationally connected with the connecting plate 31, the adjusting block 33 is slidingly connected with the adjusting groove 32, the adjusting block 33 is fixedly connected with the armrest 11, the rotating knob 35 can drive the lead screw 34 to rotate, the lead screw 34 can drive the adjusting block 33 to move vertically, the adjusting block 33 can drive the armrest 11 to move vertically, thereby the height of the armrest 11 can be adjusted, the position of the armrest 11 can be flexibly adjusted according to the height of the passenger, thereby the application range can be improved, a buffer pad 71 is arranged on the outer side of the armrest 11, the outer side of the buffer pad 71 is arc-shaped, the buffer pad 71 can play a buffering role, thereby the arm of the passenger can be supported, and the arm placing comfort can be improved.

[0027] Working principle: when working, first rotate the rotating knob 35, the rotating knob 35 can drive the lead screw 34 to rotate, the lead screw 34 can drive the adjusting block 33 to move vertically, the adjusting block 33 can drive the armrest 11 to move vertically, thereby the height of the armrest 11 can be adjusted, and different height personnel can be adapted, when braking is needed, the control panel 21 can be controlled to start the motor 23, the motor 23 can drive the rotating shaft 24 to rotate, the rotating shaft 24 can drive the cam 25 to rotate, the cam 25 can drive the roller 26 to roll and push the roller 26 to move downward, the roller 26 can drive the vertical rod 27 to move downward, thereby the brake pad 28 can move downward, and the spring 30 can be deformed, the brake pad 28 can contact the driving wheel 12, thereby the braking effect can be achieved, when the protrusion 61 of the cam 25 is away from the roller 26, the spring 30 can drive the brake pad 28 to reset, thereby the brake pad 28 can repeatedly contact the driving wheel 12, the driving wheel 12 can be prevented from being locked, the wheelchair body 1 can be prevented from being turned over, the above is the working process of the whole device, and the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0028] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wheelchair with convenient braking, comprising a wheelchair body (1) and armrests (11), characterized in that: The wheelchair body (1) is equipped with drive wheels (12) on both sides, the wheelchair body (1) is provided with a brake component, and an adjustment component is provided between the armrest (11) and the wheelchair body (1); The braking component includes a control panel (21) fixedly connected to the top of one of the armrests (11), vertical plates (22) fixedly connected to the top two sides of the wheelchair body (1), a motor (23) fixedly connected to one side of the vertical plate (22), a rotating shaft (24) fixedly connected to the output end of the motor (23), a cam (25) fixedly connected to the outside of the rotating shaft (24), a roller (26) connected to the bottom of the cam (25), a vertical rod (27) fixedly connected to the bottom of the roller (26), a brake pad (28) fixedly connected to the bottom of the vertical rod (27), a horizontal plate (29) fixedly connected to one side of the vertical plate (22), and a spring (30) sleeved on the outside of the vertical rod (27). The vertical rod (27) passes through the horizontal plate (29) and is slidably connected to the horizontal plate (29). The two ends of the spring (30) are fixedly connected to the roller (26) and the horizontal plate (29) respectively. The rotating shaft (24) is rotatably connected to the vertical plate (22).

2. The wheelchair with convenient braking according to claim 1, characterized in that: The adjustment components include connecting plates (31) fixedly connected to both sides of the front of the wheelchair body (1), adjustment grooves (32) opened on the front of the connecting plates (31), adjustment blocks (33) provided in the adjustment grooves (32), lead screws (34) connected to the adjustment blocks (33), and rotating knobs (35) fixedly connected to the top of the lead screws (34). The lead screws (34) are screwed to the adjustment blocks (33), the lead screws (34) are rotatably connected to the connecting plates (31), the adjustment blocks (33) are slidably connected to the adjustment grooves (32), and the adjustment blocks (33) are fixedly connected to the armrests (11).

3. The wheelchair with convenient braking according to claim 1, characterized in that: A guide groove (41) is provided on one side of the vertical plate (22), and a guide block (42) is slidably connected in the guide groove (41). A contact plate (43) is fixedly connected between the guide block (42) and the roller (26).

4. A wheelchair with convenient braking according to claim 1, characterized in that: Push handles (51) are fixedly connected to the top two sides of the wheelchair body (1), and anti-slip sleeves (52) are fixedly connected to the outside of the push handles (51).

5. A wheelchair with convenient braking according to claim 1, characterized in that: The bottom of the brake pad (28) is provided with a plurality of protrusions (61) arranged in a circular pattern, and the protrusions (61) are fixedly connected to the brake pad (28).

6. A wheelchair with convenient braking according to claim 1, characterized in that: The handrail (11) is fitted with a cushioning pad (71) on the outside, and the outside of the cushioning pad (71) is arc-shaped.

7. A wheelchair with convenient braking according to claim 1, characterized in that: The wheelchair body (1) has legs (81) fixedly connected to both sides of the front, and casters (82) are fixedly connected to the bottom of the legs (81).

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