Wheelchair convenient to brake

Abstract

The wheelchair convenient to brake comprises two brake sets, and each brake set comprises a brake pad and an operation piece connected with the brake pad through a pulling piece; the wheelchair further comprises a backrest supporting frame, the two operating parts are movably installed on the backrest supporting frame in a spaced mode, the two operating parts are connected through a linkage part, the linkage part can drive the two operating parts to move synchronously, and the brake pads are driven by the pulling parts to lock the wheels. When a pushing person brakes, the pushing person only needs to control the linkage piece to move with one hand, the two operation pieces can be driven respectively, and therefore the two operation pieces pull the brake pad through the pulling piece. By means of the design, the complex operation that a pushing and supporting person needs to operate the two operation pieces respectively during braking is avoided, the operator can maintain pushing and supporting of the wheelchair with one hand, the other hand controls the linkage piece to achieve braking, and convenience and safety of braking operation are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to a convenient-braking wheelchair. BACKGROUND

[0002] As an important medical device, a wheelchair is widely used in people with difficulty in moving, and provides great convenience for their daily life. In the design of the wheelchair, the brake system is one of the key components to ensure the safety of the user. At present, most wheelchairs are provided with a hand brake device at the rear of a backrest support frame, and a person pushing and supporting the wheelchair controls the braking of the wheelchair by operating the hand brake. Generally, the hand brake device includes two independent brake rods corresponding to two rear wheels of the wheelchair, and the person pushing and supporting needs to operate the two brake rods with both hands to realize braking.

[0003] However, the existing hand brake design has obvious deficiencies. First, since the two brake rods need to be controlled separately, the person pushing and supporting must release the handrails of the wheelchair when braking, and operate the brake rods with both hands, which not only increases the complexity of operation, but also may cause instability during pushing and supporting, especially in emergency situations, the person pushing and supporting may not be able to quickly and safely complete the brake operation. Second, the way of operating the brake rods with both hands reduces the convenience of pushing and supporting, especially in scenes that need to be frequently started and stopped, the person pushing and supporting is prone to fatigue, thereby affecting the use experience.

[0004] Therefore, the existing wheelchair hand brake design has room for improvement in terms of operation convenience and safety. In order to solve the above problems, it is urgent to provide a wheelchair brake device that can simplify the operation and improve the convenience of pushing and supporting. CONTENT OF THE INVENTION

[0005] The application provides a convenient-braking wheelchair to solve the technical problem of inconvenient braking of a person pushing and supporting in a conventional wheelchair.

[0006] The technical scheme adopted by the application is as follows:

[0007] A convenient-braking wheelchair includes two brake groups, each brake group including a brake pad and an operating member connected to the brake pad through a pulling member; the wheelchair further includes a backrest support frame, and two operating members are movably and spacedly installed on the backrest support frame, and the two operating members are connected through a linkage member, and the linkage member can drive the two operating members to move synchronously to drive the brake pad to lock the wheels through the pulling member.

[0008] The convenient-braking wheelchair described in the application further includes the following additional technical features:

[0009] The operation member comprises a rotating part rotatably connected with the backrest support frame and a connecting part connected with the connecting member, the connecting part is provided with a mounting hole, and two ends of the connecting member are respectively inserted into the two mounting holes.

[0010] The operation member can be rotated in the first rotating direction and the second rotating direction respectively to drive the brake pad to lock the wheel by the pulling member, the backrest support frame is provided with a locking part, and the operation member can be locked by the locking part when the operation member is moved in the first rotating direction, so that the brake pad is maintained in locking with the wheel.

[0011] The wheelchair further comprises a first fixing rod and a second fixing rod mounted on the backrest support frame, the operation member is provided with a first sliding groove matched with the first fixing rod and a second sliding groove matched with the second fixing rod, the first fixing rod and the second fixing rod are respectively located in the first sliding groove and the second sliding groove, the operation member can be rotated in the first rotating direction around the second fixing rod, and the operation member can be rotated in the second rotating direction around the first fixing rod.

[0012] The first sliding groove is provided with a first limiting part, the first fixing rod is configured as the locking part, and the first limiting part is in abutment with the locking part to lock the operation member.

[0013] The pulling member comprises a connecting head located in the second sliding groove and a connecting rope connected with the connecting head and the brake pad respectively, and the connecting head is in abutment with the inner wall of the second sliding groove close to the connecting rope.

[0014] The second sliding groove is provided with a second limiting part, and the connecting head is located in the second limiting part.

[0015] The backrest support frame comprises a frame body and a mounting seat mounted on the frame body, the mounting seat is provided with two first mounting holes and two second mounting holes which are respectively aligned, the first fixing rod is respectively inserted into the two first mounting holes, and the second fixing rod is respectively inserted into the two second mounting holes.

[0016] The wheelchair further comprises a rear wheel side vehicle body, the rear wheel side vehicle body is provided with a rear wheel at the bottom, the brake pad is rotatably mounted on the rear wheel side vehicle body and can lock the rear wheel, the rear wheel side vehicle body is further provided with a steering piece, and the pulling member passes through the steering piece and is connected with the brake pad.

[0017] The wheelchair further comprises an elastic reset member arranged between the steering piece and the brake pad.

[0018] The wheelchair further comprises a penetrating pipe connected with the steering piece and the backrest support frame respectively, and the pulling member penetrates through the penetrating pipe.

[0019] By means of the technical scheme, the application has the following beneficial effects:

[0020] 1. The brake type wheelchair of the application comprises two brake sets, and the brake pads in the two brake sets correspond to the two wheels of the wheelchair respectively, so that the two pairs of aligned wheels can be locked respectively, ensuring the stability of the wheelchair when braking. The two operating members are connected through the connecting member, so that the two operating members can move synchronously. When braking, the person pushing and supporting only needs to control the movement of the connecting member with one hand, and the two operating members can be driven respectively, so that the brake pads are pulled by the pulling member. This design avoids the complex operation of controlling the two operating members respectively when braking, so that the operator can maintain the pushing and supporting of the wheelchair with one hand and control the connecting member to brake with the other hand, improving the convenience and safety of braking operation. In addition, since the two operating members move synchronously under the driving of the connecting member, the movement of the two brake pads is also synchronous when braking, and the two brake pads lock the wheels at the same time, avoiding the phenomenon that one brake pad locks the wheel while the other wheel is still rotating, thereby avoiding the wheelchair tilting or sliding caused by unilateral braking, and improving the stability of the wheelchair from the moving state to the stationary state.

[0021] 2. As a preferred embodiment of the application, the operating member comprises a rotating part and a connecting part, and the connecting part is provided with a mounting hole, which provides a mounting position for the connecting member. Through the insertion design of the mounting hole and the connecting member, the connection between the operating member and the connecting member is stable, avoiding loosening or falling off. In addition, the design of the mounting hole makes the installation and disassembly of the connecting member more convenient, facilitating the maintenance and replacement of the operating member and the connecting member.

[0022] 3. As a preferred embodiment of the application, the rotation of the operating member in the first rotation direction and the second rotation direction corresponds to two brake modes of the brake pad respectively. When the operating member rotates in the first rotation direction, the operating member can be locked by the locking part and cannot be reset, and at this time the brake pad is locked with the wheel by the action of the pulling member. Since the operating member cannot be reset due to the action of the locking part, the user can release the connecting member to perform other actions, so that it is not necessary to maintain the force on the operating member to maintain the stationary state of the wheelchair. When the operating member rotates in the second rotation direction, the brake pad also locks the wheel, and when the user releases the force on the operating member, the brake pad resets to release the lock of the wheel, and the wheelchair can continue to move forward or backward. That is, the rotation of the operating member in the first rotation direction and the second rotation direction corresponds to the stationary state and the short brake of the wheelchair, and the operator can realize the switching of the wheelchair from the moving state to the two brake states by controlling the connecting member, greatly improving the use experience of the person pushing and supporting.

[0023] 4. As a preferred embodiment of the present application, the first fixed rod and the second fixed rod are installed on the backrest support frame, and the first sliding groove and the second sliding groove are respectively arranged on the operating member to enable the operating member to rotate around the first fixed rod and the second fixed rod respectively. Specifically, when the operating member rotates in the first rotation direction, the second fixed rod is taken as the rotation point, and the first fixed rod slides in the first sliding groove until it enters the first limiting portion and is locked; when the operating member rotates in the second rotation direction, the first fixed rod is taken as the rotation point, and the second fixed rod slides in the second sliding groove. This design enables the operating member to move flexibly in the first rotation direction and the second rotation direction, and the brake pad is locked by the pulling member to drive the wheel, thereby realizing effective brake function.

[0024] 5. As a preferred embodiment of the present application, the first sliding groove is provided with the first limiting portion, the first fixed rod is configured as a locking portion, and the first limiting portion and the locking portion are stop matched to lock the operating member. This design can ensure that the operating member is locked in the first limiting portion, thereby ensuring that the brake pad can maintain the locked state with the wheel when needed. Configuring the first fixed rod as a locking portion enables the first fixed rod to further inherit the function of the locking portion on the basis of enabling the operating member to rotate around the first fixed rod, further integrates the functions, and optimizes the structural design of the wheelchair.

[0025] 6. As a preferred embodiment of the present application, the pulling member includes a connecting head and a connecting rope, the connecting head is used to connect the pulling member and the operating member, the connecting head is arranged in the second sliding groove, and the operation of matching the connecting head on the operating member is omitted, which is helpful to optimize the structural design of the operating member. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and illustrate the illustrative embodiments of the present application and its description, which are used to explain the present application and do not constitute improper limitations on the present application. In the drawings:

[0027] Figure 1 Structure diagram of part of the quick brake wheelchair according to an embodiment of the present application Figure 1 ;

[0028] Figure 2 Structure diagram of the operating member according to an embodiment of the present application

[0029] Figure 3 Side view of part of the quick brake wheelchair according to an embodiment of the present application

[0030] Figure 4 Enlarged view of A part of Figure 3 ;

[0031] Figure 5 Structure diagram of part structure of the easy brake wheelchair according to an embodiment of the present application Figure 2

[0032] Figure 6 For Figure 5 Enlarged view of B part of the wheelchair

[0033] Wherein:

[0034] 1 brake pad

[0035] 2 operating member, 21 rotating part, 22 connecting part, 221 mounting hole, 23 first sliding groove, 231 first limiting part, 232 limiting protrusion, 24 second sliding groove, 241 second limiting part

[0036] 3 connecting member

[0037] 4 pulling member, 41 connecting head, 42 connecting rope

[0038] 5 backrest support frame, 51 frame body, 52 mounting seat, 521 first mounting hole, 522 second mounting hole

[0039] 6 first fixing rod

[0040] 7 second fixing rod

[0041] 8 rear wheel side vehicle body, 81 rear wheel

[0042] 9 front wheel side vehicle body, 91 front wheel

[0043] 10 steering piece

[0044] 11 elastic reset member

[0045] 12 through pipe DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0047] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment can be combined with each other without conflict.

[0048] ​In addition, in the description of the present application, it needs to be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0049] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connect", "fix", and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0051] As shown in Figure 1 The brake set includes a brake pad 1 and an operating member 2 connected to the brake pad 1 through a pulling member 4. The wheelchair further includes a backrest support frame 5, and the two operating members 2 are movably and spacedly installed on the backrest support frame 5. The two operating members 2 are connected through a linkage member 3, and the linkage member 3 can drive the two operating members 2 to move synchronously to drive the brake pad 1 to lock the wheels through the pulling member 4.

[0052] The brake of the wheelchair of the present application comprises two brake sets, and the brake pads 1 of the two brake sets correspond to the two wheels of the wheelchair respectively, so that the two wheels can be locked respectively, ensuring the stability of the wheelchair during braking. The two operating members 2 are connected by the connecting member 3, so that the two operating members 2 can move synchronously. When braking, the person pushing or supporting the wheelchair only needs to control the movement of the connecting member 3 with one hand, and the two operating members 2 can be driven respectively, so that the brake pads 1 are pulled by the pulling member 4. This design avoids the complex operation of controlling the two operating members 2 respectively during braking, so that the operator can maintain the pushing or supporting of the wheelchair with one hand, and control the connecting member 3 to brake with the other hand, improving the convenience and safety of braking operation. In addition, since the two operating members 2 move synchronously under the driving of the connecting member 3, the movement of the two brake pads 1 is also synchronous during braking, and the two brake pads 1 lock the wheels at the same time, avoiding the phenomenon that one brake pad 1 locks the wheel while the other wheel is still rotating, thereby avoiding the wheelchair tilting or sliding caused by unilateral braking, and improving the stability of the wheelchair from the moving state to the stationary state.

[0053] Specifically, the brake pad 1 switches between the position abutting against the wheel and the position separating from the wheel to realize the locking and releasing of the wheel.

[0054] As a preferred embodiment of the present application, as shown in Figure 1 、 Figure 2 , the operating member 2 comprises a rotating part 21 rotationally connected with the backrest support frame 5 and a connecting part 22 connected with the connecting member 3, and the connecting part 22 is provided with a mounting hole 221, and the two ends of the connecting member 3 are inserted into the two mounting holes 221 respectively. The operating member 2 comprises the rotating part 21 and the connecting part 22, and the mounting hole 221 provided in the connecting part 22 provides a mounting position for the connecting member 3. Through the insertion design of the mounting hole 221 and the connecting member 3, the connection between the operating member 2 and the connecting member 3 is stable, avoiding loosening or falling off. In addition, the design of the mounting hole 221 makes the installation and disassembly of the connecting member 3 more convenient, facilitating the maintenance and replacement of the operating member 2 and the connecting member 3.

[0055] Preferably, the operating member 2 is provided with a locking hole at the position corresponding to the mounting hole 221, and when the connecting member 3 is inserted into the mounting hole 221, the locking member is inserted into the locking hole and abuts against the connecting member 3, so as to improve the installation stability of the connecting member 3 in the mounting hole 221.

[0056] As a preferred embodiment of the present application, as shown in Figure 3 、 Figure 4 , the operating member 2 can rotate along the first rotation direction and the second rotation direction respectively to drive the brake pad 1 to lock the wheel through the pulling member 4, and the backrest support frame 5 is provided with a locking part, and when the operating member 2 moves along the first rotation direction, the locking part can lock the operating member 2 to maintain the locking of the brake pad 1 and the wheel.

[0057] Figure 4 The first rotating direction is indicated by arrow X, and the second rotating direction is indicated by arrow Y. The rotation of the operating member 2 in the first rotating direction and the second rotating direction corresponds to two braking modes of the brake pad 1. When the operating member 2 is rotated in the first rotating direction, the operating member 2 can be locked by the locking part so as to be unable to return, and at this time, the brake pad 1 is kept locked with the wheel under the action of the pulling member 4. Since the operating member 2 is unable to return under the action of the locking part, the user can release the connecting member 3 to perform other actions, so as to not need to keep applying force to the operating member 2 to maintain the wheelchair in a stationary state. When the operating member 2 is rotated in the second rotating direction, the brake pad 1 also locks the wheel, and when the user removes the force applied to the operating member 2, the brake pad 1 returns to release the locking of the wheel, and the wheelchair can continue to move forward or backward. That is, the rotation of the operating member 2 in the first rotating direction and the second rotating direction corresponds to the stationary state and the short braking state of the wheelchair. The operator can switch the wheelchair from the self-movement state to the two braking states by controlling the connecting member 3, which greatly improves the use experience of the person pushing or supporting the wheelchair.

[0058] As a preferred embodiment of the present embodiment, as shown in Figure 4 The wheelchair further comprises a first fixed rod 6 and a second fixed rod 7 installed on the backrest support frame 5. The operating member 2 is provided with a first sliding groove 23 adapted to the first fixed rod 6 and a second sliding groove 24 adapted to the second fixed rod 7. The first fixed rod 6 and the second fixed rod 7 are respectively located in the first sliding groove 23 and the second sliding groove 24. The operating member 2 can rotate in the first rotating direction around the second fixed rod 7, and the operating member 2 can rotate in the second rotating direction around the first fixed rod 6.

[0059] By installing the first fixed rod 6 and the second fixed rod 7 on the backrest support frame 5 and respectively providing the first sliding groove 23 and the second sliding groove 24 adapted thereto on the operating member 2, the operating member 2 can rotate around the first fixed rod 6 and the second fixed rod 7, respectively. Specifically, when the operating member 2 is rotated in the first rotating direction, the second fixed rod 7 is taken as the rotating point, and the first fixed rod 6 slides in the first sliding groove 23 until entering the first limiting part 231 and achieving the locking of the first fixed rod 6. When the operating member 2 is rotated in the second rotating direction, the first fixed rod 6 is taken as the rotating point, and the second fixed rod 7 slides in the second sliding groove 24. This design enables the operating member 2 to move flexibly in the first rotating direction and the second rotating direction, and the brake pad 1 is locked with the wheel by the pulling member 4, thereby achieving effective braking function.

[0060] Preferably, the first fixing rod 6 and the second fixing rod 7 are both in cylindrical structure; the inner wall of the first sliding groove 23 and the second sliding groove 24 are both arc surface. In this way, the sliding smoothness of the first fixing rod 6 in the first sliding groove 23 and the second fixing rod 7 in the second sliding groove 24 can be increased, so as to improve the rotation smoothness of the operating member 2.

[0061] As a preferred example under the present embodiment, as shown in Figure 4 , the first sliding groove 23 is provided with a first limiting part 231, and the first fixing rod 6 is configured as a locking part, and the first limiting part 231 and the locking part are in stop cooperation to lock the operating member 2. This design can ensure that the operating member 2 is locked in the first limiting part 231, so as to ensure that the brake pad 1 can maintain the locked state with the wheel when needed. By configuring the first fixing rod 6 as a locking part, the first fixing rod 6 not only has the function of enabling the operating member 2 to rotate therearound, but also inherits the function of constituting a locking part, so that the functions are further integrated, and the structural design of the wheelchair is optimized.

[0062] Preferably, as shown in Figure 4 , the first sliding groove 23 is provided with a limiting protrusion 232 at the position corresponding to the first limiting part 231, so as to separate the first limiting part 231. That is, the first fixing rod 6 cannot autonomously escape from the first limiting part 231 due to the stop action of the limiting protrusion, and the operating personnel need to force the first fixing rod 6 to escape.

[0063] As a preferred mode under the present example, as shown in Figure 4 , the pulling member 4 includes a connecting head 41 located in the second sliding groove 24 and a connecting rope 42 connected with the connecting head 41 and the brake pad 1 respectively, and the connecting head 41 abuts against the inner wall of the second sliding groove 24 close to the side of the connecting rope 42. The pulling member 4 includes the connecting head 41 and the connecting rope 42, the connecting head 41 is used to connect the pulling member 4 and the operating member 2, and the connecting head 41 is placed in the second sliding groove 24, which saves the operation of opening the operating member 2 to match the connecting head 41, and helps to optimize the structural design of the operating member 2.

[0064] Preferably, the connecting rope 42 is made of high-strength flexible material, such as nylon rope or steel wire rope, so as to ensure that it will not break or deform when transmitting operating force. The connecting head 41 is made of metal material or high-strength plastic, so as to ensure its durability and reliability in use.

[0065] Further, as shown in Figure 4As shown, the second sliding groove 24 is provided with a second limiting portion 241, and the connecting head 41 is located in the second limiting portion 241. The second limiting portion 241 increases the stability of the connecting head 41 in the second sliding groove 24, reduces the probability of dislocation of the connecting head 41 during the rotation of the operating member 2, and effectively improves the stability and reliability of the brake system.

[0066] Preferably, as shown in Figure 5 , Figure 6 The backrest support frame 5 comprises a frame body 51 and a mounting seat 52 mounted on the frame body 51. The mounting seat 52 is provided with two first mounting holes 521 and two second mounting holes 522. The first fixing rods 6 are respectively inserted into the two first mounting holes 521, and the second fixing rods 7 are respectively inserted into the two second mounting holes 522.

[0067] The mounting seat 52 is provided to stably mount and keep the first fixing rods 6 and the second fixing rods 7 in the predetermined positions, avoiding the loosening or displacement problems that may occur during the brake operation, and ensuring that the operating member 2 can move along the predetermined trajectory during rotation, further improving the operation accuracy and reliability of the brake system.

[0068] As a preferred embodiment of the present application, as shown in Figure 1 The wheelchair further comprises a rear wheel side body 8. The rear wheel side body 8 is provided with a rear wheel 81 at the bottom. The brake pad 1 is rotatably installed on the rear wheel side body 8 and can lock the rear wheel 81. The rear wheel side body 8 is further provided with a steering piece 10. The pulling member 4 passes through the steering piece 10 and is connected with the brake pad 1.

[0069] Preferably, the wheelchair further comprises a front wheel side body 9. The front wheel side body 9 is provided with a front wheel 91 at the bottom. In this embodiment, the brake pad 1 is rotatably installed on the rear wheel side body 8, so that the rear wheel side body 8 further integrates the function of providing a mounting position for the brake pad 1 on the basis of having the function of mounting the rear wheel 81. The functions are further integrated, and the structural design of the wheelchair is optimized. In addition, the brake pad 1 is rotatably connected with the rear wheel side body 8, so that the pulling member 4 can drive the rotation of the brake pad 1 by pulling a small distance, saving the force exertion distance between operations. On this basis, the steering piece 10 is provided to change the extension direction of the pulling member 4. The pulling member 4 extends to the brake pad 1 under the limiting action of the steering piece 10 and is connected with the brake pad 1, further optimizing the force exertion angle of the pulling member 4 on the brake pad 1.

[0070] As a preferred embodiment of the present application, as shown in Figure 1As shown, the wheelchair further comprises an elastic reset member 11 arranged between the steering piece 10 and the brake piece 1. By arranging the elastic reset member 11, when the user removes the force on the connecting member 3, the brake piece 1 is reset to the position of releasing the wheel locking under the action of the elastic reset member 11, and the operating member 2 and the connecting member 3 are reset by the pulling member 4.

[0071] Preferably, the elastic reset member 11 is a spring, and the spring is in abutment with the steering piece 10 and the brake piece 1 respectively.

[0072] As a preferred embodiment of the present application, as shown in the accompanying drawings, Figure 3 As shown, the wheelchair further comprises a penetrating pipe 12, and the penetrating pipe 12 is connected with the steering piece 10 and the backrest support frame 5 respectively, and the pulling member 4 penetrates the penetrating pipe 12. The arrangement of the penetrating pipe 12 plays a protective role for the connecting member 3, reduces the area of the pulling member 4 exposed below the user's field of vision, and limits the extension direction of the connecting member 3, so that the connecting member 3 extends along the arrangement direction of the penetrating pipe 12, and provides stability guarantee for the pulling of the brake piece 1 by the pulling member 4.

[0073] The unmentioned parts in the present application can be realized by using or referring to the existing technology.

[0074] Each embodiment in the present specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0075] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A wheelchair with a convenient brake, characterized in that, The wheelchair comprises two brake sets, each of which comprises a brake pad and an operating member connected to the brake pad by a pulling member; the wheelchair further comprises a backrest support frame, two operating members movably and spacedly installed on the backrest support frame, and a connecting member connecting the two operating members, the connecting member being capable of driving the two operating members to move synchronously so as to drive the brake pad to lock the wheels by the pulling member.

2. The wheelchair according to claim 1, characterized in that, the operating member comprises a rotating part rotatably connected to the backrest support frame and a connecting part connected to the connecting member, the connecting part being provided with two installation holes, and the two ends of the connecting member are inserted into the two installation holes, respectively.

3. The wheelchair according to claim 1, characterized in that, the operating member is capable of rotating in a first rotating direction and a second rotating direction, respectively, so as to drive the brake pad to lock the wheels by the pulling member, the backrest support frame is provided with a locking part, and the operating member is capable of being locked by the locking part when moving in the first rotating direction, so as to maintain the locking of the brake pad and the wheels.

4. The wheelchair according to claim 3, characterized in that, the wheelchair further comprises a first fixed rod and a second fixed rod installed on the backrest support frame, the operating member is provided with a first sliding groove matched with the first fixed rod and a second sliding groove matched with the second fixed rod, respectively, the first fixed rod and the second fixed rod are located in the first sliding groove and the second sliding groove, respectively, the operating member is capable of rotating in the first rotating direction around the second fixed rod, and the operating member is capable of rotating in the second rotating direction around the first fixed rod.

5. The wheelchair according to claim 4, characterized in that, the first sliding groove is provided with a first limiting part, the first fixed rod is configured as the locking part, and the first limiting part and the locking part are stop matched to lock the operating member.

6. The wheelchair according to claim 5, characterized in that, the pulling member comprises a connecting head located in the second sliding groove and a connecting rope connected to the connecting head and the brake pad, respectively, and the connecting head is abutted against the inner wall of the second sliding groove close to the side of the connecting rope.

7. The wheelchair according to claim 6, characterized in that, the second sliding groove is provided with a second limiting part, and the connecting head is located in the second limiting part.

8. The wheelchair according to any one of claims 4 to 7, characterized in that, the backrest support frame comprises a frame body and a mounting seat installed on the frame body, the mounting seat is provided with two first mounting holes and two second mounting holes which are oppositely arranged, the first fixed rod is inserted into the two first mounting holes, respectively, and the second fixed rod is inserted into the two second mounting holes, respectively.

9. The wheelchair according to claim 1, characterized in that, The wheelchair further comprises a rear wheel side vehicle body, a rear wheel is mounted at the bottom of the rear wheel side vehicle body, the brake pad is rotatably mounted on the rear wheel side vehicle body and can lock the rear wheel, a steering pad is further mounted on the rear wheel side vehicle body, the pulling member penetrates the steering pad and is connected with the brake pad.

10. The easy brake wheelchair according to claim 9, characterized in that, The wheelchair further comprises an elastic reset member arranged between the steering pad and the brake pad.

11. The easy brake wheelchair according to claim 10, characterized in that, The wheelchair further comprises a penetrating pipe, the penetrating pipe is connected with the steering pad and the backrest support frame respectively, and the pulling member penetrates the penetrating pipe.

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