Wheelchair

Abstract

The utility model provides a wheelchair and belongs to the technical field of wheelchairs. Comprising a wheelchair frame, a seat plate frame is fixedly arranged in the middle of the upper portion of the wheelchair frame, a backrest frame is fixed to the upper portion of one side of the seat plate frame, a back cushion is installed on the inner side of the backrest frame, and adaptive fixing mechanisms are jointly installed on the rear side and the two sides of the backrest frame. Through the arrangement of the adaptive fixing mechanism, after a patient sits on the sitting plate frame of the wheelchair, the first motor can be started at the first time to enable the first rotating rod and the gear on the left side in the assembly frame to rotate, and at the moment, the gear on the right side in the assembly frame in meshed transmission with the first motor can synchronously drive the first rotating rod in the middle to move in the opposite direction; due to the fact that the first synchronous wheels are arranged above the two first rotating rods, under traction of synchronous belts meshed with the peripheries of the first synchronous wheels, the second synchronous wheels and the second rotating rods in the side mounting frames on the two sides of the rear end of the backrest frame can be driven to rotate, and at the moment, the two second rotating rods can drive bandages wound around the peripheries of the second rotating rods to conduct loosening operation.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to a wheelchair. Background Art

[0002] The wheelchair is an important tool for rehabilitation. It is not only a means of transportation for the physically disabled and those with limited mobility, but more importantly, it enables them to exercise and participate in social activities with the help of a wheelchair. It is also an indispensable tool in hospitals, and patients with limited mobility use wheelchairs to move around.

[0003] A wheelchair structure as disclosed in Patent 202322812969.6 includes a seat, a fixed plate fixedly connected to one side of the seat surface, a cushion fixedly connected to the other side of the seat surface, a spring fixedly connected to the inside of the fixed plate, a hydraulic rod for buffering is sleeved inside the spring, one end of the spring is fixedly connected to a movable plate, a servo motor is installed on one side of the movable plate, the output end of the servo motor is splined to a transmission rod, and one end of the transmission rod is fixedly connected to a first guide wheel.

[0004] During the use of the above-mentioned wheelchair, the bandages on both sides of the wheelchair cannot be adjusted in length, so when people of different shapes and ages use it, it may be too loose or too tight, and the adaptability is low; secondly, since the bandages on both sides do not have a winding and fixing mechanism, when people do not need to fix them, the fixing bandages are relatively useless, which will bring a bad experience to the rider. Therefore, the present application provides a wheelchair to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a wheelchair to solve the problem that the bandages on both sides of the existing wheelchair cannot be adjusted in length, so that when people of different shapes and ages use it, it may become too loose or too tight, and the adaptability is low; secondly, since the bandages on both sides do not have a winding and fixing mechanism, when people do not need to fix them, the fixing bandages are relatively useless, which will bring a bad experience to the passengers.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A wheelchair comprises a wheelchair frame, a seat frame is fixedly provided at the upper middle part of the wheelchair frame, and a backrest frame is fixed at the upper part of one side of the seat frame, a cushion is installed at the inner side of the backrest frame, and an adapting and fixing mechanism is jointly installed at the rear side and both sides of the backrest frame, a massage adjustment mechanism is installed at the front end of the backrest frame, a loading mechanism is installed at the middle part of the seat frame, the adapting and fixing mechanism comprises a fixing frame, and the fixing frame is fixed at the rear side of the backrest frame, a linkage assembly is installed at the rear end of the fixing frame, side mounting frames are fixed at both sides of the rear end of the backrest frame, the linkage assembly comprises a second rotating rod, and limiting plates are fixed at both sides of one side of the second rotating rod, and a fixing assembly is installed around the periphery of the second rotating rod.

[0008] Optionally, the linkage assembly includes an assembly frame, and the assembly frame is fixed to the middle part of the rear end of the backrest frame, first rotating rods are installed on both sides of the middle part of the assembly frame, and gears are fixed around one end of each of the two first rotating rods, one end of one of the first rotating rods is connected to a first motor, and a first synchronous wheel is fixed around the other end of each of the two first rotating rods, a synchronous belt is sleeved around the periphery of the two first synchronous wheels, and a second synchronous wheel is meshed on the inner edge of the other side of each of the two synchronous belts, and a second rotating rod is fixed to the middle of the two second synchronous wheels.

[0009] Optionally, the gears fixed at one end of the first rotating rods arranged on both sides inside the assembly frame are meshed and transmission-connected with each other.

[0010] Optionally, the fixing assembly includes a bandage, and the bandage is respectively wrapped around the inner side of the two second rotating rods relative to the limit plate, and a winding opening for the bandage to be wound on the inner side of the side mounting frame, and a buckle is fixed to the top of one of the bandages, and a slot frame is fixed to the top of the other bandage.

[0011] Optionally, the buckle and the card slot frame are fixedly connected by snapping.

[0012] Optionally, the massage adjustment mechanism includes a pre-installed groove, and adjustment components are installed on both sides of the interior of the pre-installed groove. The adjustment component includes a screw sleeve and a guide sleeve, and a mounting frame is fixed on the inner side of each of the screw sleeve and the guide sleeve, and a massage component is installed on the inner side of the middle part of the mounting frame.

[0013] Optionally, the adjustment assembly includes a transmission screw, and the transmission screw is installed on one side of the interior of the pre-installed groove, one end of the transmission screw is connected to a second motor, and a screw sleeve is threaded around one side of the transmission screw, a guide sleeve is fixed on one side of the mounting frame, and a guide rod is fixed on the other side of the interior of the pre-installed groove for guiding the guide sleeve.

[0014] Optionally, the transmission screw and the guide rod are distributed opposite to each other along the vertical center axis of the pre-installed groove.

[0015] Optionally, the massage component includes a partition plate, and the partition plates are arranged on both sides of the inner side of the mounting frame, massage rollers are installed on the inner sides of the two partition plates, and one end of the massage roller is connected to a third motor.

[0016] Optionally, the loading mechanism includes a preset slide groove, and the preset slide groove is opened at the front end of the seat frame, a loading slide is slid inside the preset slide groove, and side fixing plates are fixed on both sides of the front end of the loading slide, a first magnetic block is fixed on the inner side of the two side fixing plates, and a second magnetic block is fixed on both sides of the front end of the seat frame.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] In the above scheme, by setting an adaptive fixing mechanism, when the patient sits on the seat frame of the wheelchair, the first motor can be started at the first time to rotate the first rotating rod and the gear on the left side of the assembly frame. At this moment, the right gear in the assembly frame that is meshed with it will synchronously drive the first rotating rod in the middle to move in the opposite direction. Since a first synchronous wheel is provided above the two first rotating rods, under the traction of the synchronous belt meshed around the respective first synchronous wheels, the second synchronous wheel and the second rotating rod inside the side mounting frames on both sides of the rear end of the backrest frame can be rotated. At this moment, the two second rotating rods can relax the bandages wrapped around their respective peripheries. The patient can fix and limit the bandages around his own waist and abdomen according to the buckles and slot frames connected to the top ends of the two bandages, so as to provide safety protection. The patient can freely adjust the length of the bandage placement according to his own body shape and dimensions, and the adaptability is high. When there is no need to be restrained later, the patient can use the above structure to link and retract the two bandages into their respective side mounting frames.

[0019] By setting up a massage adjustment mechanism, the patient can lean against the cushion while sitting. During this process, the person can start the third motor to rotate the massage roller connected to the output end, so as to massage a certain area of ​​the person's back. When the massage position is to be changed, the second motor can be started to rotate the transmission screw. At this moment, the screw sleeve acting with the screw can carry the mounting frame and its middle massage component to cooperate with the movable guide of the guide sleeve and the guide rod to perform lifting and lowering movements, so that different positions of the person's back can be massaged.

[0020] By setting up a containing mechanism, the medicine or corresponding tools etc. required by the personnel can be placed in the containing slide rack. When necessary, the caregiver can open it with the help of a preset slide slot to take the corresponding items. It is portable and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a wheelchair;

[0023] Figure 2 It is a perspective structural diagram of the back end of the wheelchair backrest frame;

[0024] Figure 3 It is a schematic diagram of the front end structure of the wheelchair backrest frame;

[0025] Figure 4 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0026] [Reference Signs]

[0027] 1. Wheelchair frame; 2. Seat frame; 3. Backrest frame; 4. Cushion; 5. Adaptive fixing mechanism; 51. Fixing frame; 52. Linkage assembly; 521. Assembly frame; 522. First rotating rod; 523. Gear; 524. First motor; 525. First synchronous wheel; 526. Synchronous belt; 527. Second synchronous wheel; 528. Second rotating rod; 53. Side mounting frame; 54. Limiting plate; 55. Fixing assembly; 551. Bandage; 552. Winding mouth; 553. Card Buckle; 554, slot rack; 6, massage adjustment mechanism; 61, pre-installed slot; 62, adjustment component; 621, transmission screw; 622, second motor; 623, screw sleeve; 624, guide sleeve; 625, guide rod; 63, mounting frame; 64, massage component; 641, partition plate; 642, massage roller; 643, third motor; 7, loading mechanism; 71, preset slide slot; 72, loading slide; 73, side fixing plate; 74, first magnetic block; 75, second magnetic block.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0029] The following is a detailed description of a wheelchair provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0030] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0031] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0032] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0033] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0034] like Figure 1 and Figure 2As shown, an embodiment of the utility model provides a wheelchair, including a wheelchair frame 1, a seat frame 2 is fixedly provided at the upper middle part of the wheelchair frame 1, and a backrest frame 3 is fixedly provided at the upper side of one side of the seat frame 2, a cushion 4 is installed on the inner side of the backrest frame 3, and an adapting fixing mechanism 5 is jointly installed on the rear side and both sides of the backrest frame 3, a massage adjustment mechanism 6 is installed at the front end of the backrest frame 3, and a loading mechanism 7 is installed at the middle part of the seat frame 2, the adapting fixing mechanism 5 includes a fixing frame 51, and the fixing frame 51 is fixedly provided at the rear side of the backrest frame 3, a linkage assembly 52 is installed at the rear end of the fixing frame 51, side mounting frames 53 are fixed on both sides of the rear end of the backrest frame 3, the linkage assembly 52 includes an assembly frame 521, and the assembly frame 521 is fixed to the middle part of the rear end of the backrest frame 3, and the middle part of the assembly frame 521 First rotating rods 522 are installed on both sides, and a gear 523 is fixed to each end of the two first rotating rods 522. A first motor 524 is connected to one end of one of the first rotating rods 522, and a first synchronous wheel 525 is fixed to each other end of the two first rotating rods 522. A synchronous belt 526 is sleeved on the periphery of the two first synchronous wheels 525, and a second synchronous wheel 527 is meshed with the inner edge of the other side of each of the two synchronous belts 526. A second rotating rod 528 is fixed to the middle of the two second synchronous wheels 527. The gears 523 fixed to each end of the first rotating rods 522 arranged on both sides of the assembly frame 521 are meshed and connected to each other, and a limiting disk 54 is fixed on both sides of one side of the second rotating rod 528. A fixing assembly 55 is installed around the periphery of the movable rod 528, and the fixing assembly 55 includes a bandage 551, and the bandage 551 is respectively wound around the inner side of the two second rotating rods 528 relative to the limit plate 54. A winding port 552 for the bandage 551 to be wound is opened on the inner side of the side mounting frame 53, and a buckle 553 is fixed to the top of one of the bandages 551, and a slot frame 554 is fixed to the top of the other bandage 551. The buckle 553 and the slot frame 554 are connected by a clamping fixation. When the patient sits on the seat frame 2 of the wheelchair, the first motor 524 can be started immediately to rotate the first rotating rod 522 and the gear 523 on the left side of the mounting frame 521. At this time, the gear 523 on the right side of the mounting frame 521 that is meshed with the transmission can be turned. 3 will synchronously drive the first rotating rod 522 in the middle to move in the opposite direction. Since the first rotating rods 522 are each provided with a first synchronous wheel 525 above, under the traction of the synchronous belt 526 meshed around the periphery of each first synchronous wheel 525, the second synchronous wheel 527 and the second rotating rod 528 inside the side mounting frames 53 on both sides of the rear end of the backrest frame 3 can be driven to rotate. At this moment, the two second rotating rods 528 can drive the bandages 551 wound around their peripheries to perform relaxation operations. The patient can fix and limit the waist and abdomen around his own waist and abdomen according to the buckles 553 and the card slot frame 554 connected to the top ends of the two bandages 551, so as to provide safety protection. The patient can freely adjust the placement length of the bandage 551 according to his own body size and other aspects, which has high adaptability. When there is no need for restraint in the future,The patient can use the above structure to roll up the two bandages 551 in a linked manner into their respective side mounting frames 53.

[0035] like Figures 1 to 4 As shown, the massage adjustment mechanism 6 includes a pre-installed groove 61, and adjustment components 62 are installed on both sides of the interior of the pre-installed groove 61. The adjustment component 62 includes a transmission screw 621, and the transmission screw 621 is installed on one side of the interior of the pre-installed groove 61. One end of the transmission screw 621 is connected to the second motor 622, and a screw sleeve 623 is screwed on the periphery of one side of the transmission screw 621. A guide sleeve 624 is fixed to one side of the mounting frame 63, and a guide rod 625 for guiding the guide sleeve 624 is fixed to the other side of the interior of the pre-installed groove 61. The transmission screw 621 and the guide rod 625 are distributed opposite to each other along the vertical center axis of the pre-installed groove 61, and the mounting frame 63 is fixed to the inner side of the screw sleeve 623 and the guide sleeve 624 respectively, and the massage component 64 is installed on the inner side of the middle part of the mounting frame 63. The massage assembly 64 includes a partition plate 641, and the partition plate 641 is arranged on both sides of the inner side of the mounting frame 63. Massage rollers 642 are installed on the inner sides of the two partition plates 641, and one end of the massage roller 642 is connected to a third motor 643. When the patient is sitting, his back is against the cushion 4. During this process, the patient can start the third motor 643 to rotate the massage roller 642 connected to the output end, so as to massage a certain area of ​​the patient's back. When the massage position is to be changed, the second motor 622 can be started to rotate the transmission screw 621. At this time, the screw sleeve 623 acting with the screw can carry the mounting frame 63 and its middle massage assembly 64 to cooperate with the movable guide of the guide sleeve 624 and the guide rod 625 to perform lifting and lowering movements, so that different positions of the patient's back can be massaged.

[0036] Secondly, the loading mechanism 7 includes a preset slide groove 71, and the preset slide groove 71 is opened at the front end of the seat frame 2, and a loading slide 72 slides inside the preset slide groove 71, and side fixing plates 73 are fixed on both sides of the front end of the loading slide 72, and a first magnetic block 74 is fixed on the inner side of the two side fixing plates 73, and second magnetic blocks 75 are fixed on both sides of the front end of the seat frame 2. The loading slide 72 can be used to place medicines or corresponding tools needed by the personnel. When necessary, the caregiver can open it with the help of the preset slide groove 71 to take the corresponding items. It is portable and practical.

[0037] The working principle of the utility model is that when the patient sits on the seat frame 2 of the wheelchair, the first motor 524 can be started at the first time to rotate the first rotating rod 522 and the gear 523 on the left side of the assembly frame 521. At this moment, the gear 523 on the right side of the assembly frame 521 that is meshed with the transmission will synchronously drive the first rotating rod 522 in the middle to move in the opposite direction. Since the first synchronous wheels 525 are arranged above the two first rotating rods 522, under the traction of the synchronous belts 526 meshed around the respective first synchronous wheels 525, the second synchronous wheels 527 and the second rotating rods 528 inside the side mounting frames 53 on both sides of the rear end of the backrest frame 3 can be driven to rotate. At this moment, the two second rotating rods 528 can carry the bandages 551 wrapped around their respective peripheries for relaxation. The patient can relax according to the buckles 553 and the slot frames 554 connected to the tops of the two bandages 551. To fix and limit around the waist and abdomen of the patient, so as to provide safety protection, wherein the patient can freely adjust the placement length of the bandage 551 according to his or her own body size and other aspects, with high adaptability. When there is no need for restraint in the future, the patient can use the above structure to link and reel the two bandages 551 into their respective side mounting frames 53. Finally, during the patient's riding process, the patient can start the third motor 643 to rotate the massage roller 642 connected to its output end, so as to massage a certain area of ​​the person's back. When the massage position is to be changed, the second motor 622 can be started to rotate the transmission screw 621. At this moment, the screw sleeve 623 acting with the screw can carry the mounting frame 63 and its middle massage component 64 to cooperate with the active guide of the guide sleeve 624 and the guide rod 625 to perform lifting and lowering movements, so as to massage different positions of the person's back.

[0038] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A wheelchair, characterized in that: The invention comprises a wheelchair frame, a seat frame is fixedly provided at the upper middle part of the wheelchair frame, and a backrest frame is fixed at the upper part of one side of the seat frame, a cushion is installed at the inner side of the backrest frame, and an adapting and fixing mechanism is jointly installed at the rear side and both sides of the backrest frame, a massage adjustment mechanism is installed at the front end of the backrest frame, a loading mechanism is installed at the middle part of the seat frame, the adapting and fixing mechanism comprises a fixing frame, and the fixing frame is fixed at the rear side of the backrest frame, a linkage assembly is installed at the rear end of the fixing frame, side mounting frames are fixed at both sides of the rear end of the backrest frame, the linkage assembly comprises a second rotating rod, and limiting plates are fixed at both sides of one side of the second rotating rod, and a fixing assembly is installed around the periphery of the second rotating rod.

2. The wheelchair according to claim 1, characterized in that: The linkage assembly includes an assembly frame, and the assembly frame is fixed to the middle part of the rear end of the backrest frame, first rotating rods are installed on both sides of the middle part of the assembly frame, and gears are fixed to the periphery of each end of the two first rotating rods, one end of one of the first rotating rods is connected to and installed with a first motor, and a first synchronous wheel is fixed to the periphery of each other end of the two first rotating rods, a synchronous belt is sleeved on the periphery of the two first synchronous wheels, and a second synchronous wheel is meshed with the inner edge of each other side of the two synchronous belts, and a second rotating rod is fixed to the middle part of the two second synchronous wheels.

3. The wheelchair according to claim 2, characterized in that: The gears fixed at one end of the first rotating rods arranged on both sides inside the assembly frame are meshed and transmission-connected with each other.

4. The wheelchair according to claim 1, characterized in that: The fixing assembly includes a bandage, and the bandage is respectively wrapped around the inner side of the two second rotating rods relative to the limit plate. A winding opening for the bandage to be wound up is opened on one side of the inner side of the side mounting frame, and a buckle is fixed on the top of one of the bandages, and a slot frame is fixed on the top of the other bandage.

5. The wheelchair according to claim 4, characterized in that: The buckle and the slot frame are fixedly connected by snapping.

6. The wheelchair according to claim 1, characterized in that: The massage adjustment mechanism includes a pre-installed groove, and adjustment components are installed on both sides of the interior of the pre-installed groove. The adjustment component includes a screw sleeve and a guide sleeve, and a mounting frame is fixed on the inner side of each of the screw sleeve and the guide sleeve, and a massage component is installed on the inner side of the middle part of the mounting frame.

7. The wheelchair according to claim 6, characterized in that: The adjustment assembly includes a transmission screw, and the transmission screw is installed on one side of the interior of the pre-installed groove. One end of the transmission screw is connected to a second motor, and a screw sleeve is screwed around one side of the transmission screw. A guide sleeve is fixed on one side of the mounting frame, and a guide rod for guiding the guide sleeve is fixed on the other side of the interior of the pre-installed groove.

8. The wheelchair according to claim 7, characterized in that: The transmission screw rod and the guide rod are distributed in opposition along the vertical center axis of the pre-installed groove.

9. The wheelchair according to claim 6, characterized in that: The massage assembly comprises a partition plate, and the partition plates are arranged on both sides of the inner side of the mounting frame. Massage rollers are installed on the inner sides of the two partition plates, and one end of the massage roller is connected to and installed with a third motor.

10. The wheelchair according to claim 1, characterized in that: The loading mechanism includes a preset slide groove, and the preset slide groove is opened at the front end of the seat frame. A loading slide is slid inside the preset slide groove, and side fixing plates are fixed on both sides of the front end of the loading slide. A first magnetic block is fixed on the inner side of the two side fixing plates, and a second magnetic block is fixed on both sides of the front end of the seat frame.

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