阅读说明：本技术 一种监测人体生命体征的电动轮椅 (Electric wheelchair capable of monitoring vital signs of human body ) 是由 揭业冰 于 2020-07-10 设计创作，主要内容包括：本发明提供了一种监测人体生命体征的电动轮椅,包括轮椅主体,轮椅主体设置有人体生命体征监测组件；所述人体生命体征监测组件包括采集模块,处理器和信号传输模块；所述采集模块和所述处理器电连接,用于采集人体生命体征数据；所述轮椅主体上设置有装置固定结构,所述处理器和所述信号传输模块通过所述装置固定结构可拆卸地固定在所述轮椅主体上；所述处理器用于将人体生命体征数据进行数字化处理,并将数字化处理后的所述人体生命体征数据传输给所述信号传输模块；所述信号传输模块和所述处理器电连接,用于发射数字化处理后的所述人体生命体征数据。能够实时监测人体各项生命体征,使得所述生命体征监测装置与所述轮椅成为一体。(The invention provides an electric wheelchair for monitoring human vital signs, which comprises a wheelchair main body, wherein the wheelchair main body is provided with a human vital sign monitoring assembly; the human body vital sign monitoring assembly comprises an acquisition module, a processor and a signal transmission module; the acquisition module is electrically connected with the processor and is used for acquiring human body vital sign data; the wheelchair main body is provided with a device fixing structure, and the processor and the signal transmission module are detachably fixed on the wheelchair main body through the device fixing structure; the processor is used for carrying out digital processing on the human body vital sign data and transmitting the human body vital sign data after the digital processing to the signal transmission module; the signal transmission module is electrically connected with the processor and used for transmitting the digitally processed vital sign data of the human body. Can real-time supervision human each item vital sign for vital sign monitoring devices with the wheelchair becomes an organic whole.)

1. An electric wheelchair for monitoring human vital signs comprises a wheelchair main body and is characterized in that the wheelchair main body is provided with a human vital sign monitoring assembly;

the human body vital sign monitoring assembly comprises an acquisition module, a processor and a signal transmission module;

the acquisition module is electrically connected with the processor and is used for acquiring human body vital sign data;

the wheelchair main body is provided with a device fixing structure, and the processor and the signal transmission module are detachably fixed on the wheelchair main body through the device fixing structure;

the processor is used for carrying out digital processing on the human body vital sign data and transmitting the human body vital sign data after the digital processing to the signal transmission module;

the signal transmission module is electrically connected with the processor and used for transmitting the digitally processed vital sign data of the human body.

2. The powered wheelchair for monitoring human vital signs of claim 1,

the device fixing structure comprises a push-pull tray, the push-pull tray bears the processor and the signal transmission module, and the push-pull tray is pushed in and pulled out to enter and exit the wheelchair body.

3. The powered wheelchair for monitoring human vital signs of claim 2,

the push-pull tray enters and exits from the armrest part of the wheelchair by being pushed in and pulled out;

the upper surface of the push-pull tray is provided with a tray convex column;

the processor and the bottom surface of the signal transmission module body are provided with fixed blind holes;

the tray convex columns correspond to the fixed blind holes one by one.

4. The electric wheelchair for monitoring human vital signs according to claim 1, wherein the collection module comprises a pulse and blood pressure detection module, a temperature sensor, a fingerprint collector, a body fat measurement module and a voice collection module;

the temperature sensor is fixed on the armrest part of the wheelchair and is electrically connected with the processor;

the fingerprint collector is fixed on the armrest part of the wheelchair and is electrically connected with the processor;

the voice acquisition module is fixed on the headrest part of the wheelchair and is electrically connected with the processor.

5. Electric wheelchair for monitoring vital signs of a human body according to claim 4,

the pulse and blood pressure detection module comprises an arm wrapping device, a pressure sensor and a pulse sensor;

the arm wrapping device is arranged on an armrest part of the wheelchair;

the pressure sensor and the pulse sensor are arranged on the arm wrapping device and are respectively and electrically connected with the processor.

6. Electric wheelchair for monitoring vital signs of a human body according to claim 4,

the body fat measuring module comprises a conducting strip and a pair of measuring handshakes;

the measuring handles are respectively fixed on two armrests of the armrest part of the wheelchair and are electrically connected with the processor;

the conducting strip is fixed on the pedal part of the wheelchair and is connected with a body fat detection circuit;

the body fat detection circuit is electrically connected with the processor.

7. The powered wheelchair for monitoring human vital signs of claim 1,

the voice recognition device also comprises a voice module and a loudspeaker;

the voice module is electrically connected with the signal transmission module;

the loudspeaker is electrically connected with the voice module;

the loudspeaker and the voice module are both fixed on the wheelchair main body.

8. The powered wheelchair for monitoring human vital signs of claim 1,

the device also comprises a display module;

the display module is electrically connected with the signal transmission module;

the display module and the signal transmission module are both fixed on the armrest part of the wheelchair.

9. The powered wheelchair for monitoring human vital signs of claim 1,

the front wheel comprises a detachable hub and a wheel body;

the wheel body comprises a plurality of detachable large rubber wheels and a plurality of detachable small rubber wheels;

the wheel surface of the wheel body is enclosed by the wheel surface of the large rubber wheel and the wheel surface of the small rubber wheel, and the large rubber wheel and the small rubber wheel drive the front wheel to laterally move transversely by rolling around a central shaft of the large rubber wheel and the small rubber wheel.

Technical Field

The invention relates to the technical field of intelligent wheelchairs, in particular to an electric wheelchair for monitoring human vital signs.

Background

In the prior art, human vital signs monitoring devices are rarely provided. The human body vital sign monitoring device can read vital sign data of a user in real time. When the user takes exercise, the human vital sign monitoring device can feed back the exercise intensity of the user in real time. When the disease suddenly breaks out, the human vital sign monitoring device can give an early warning and transmit the geographical position of the user to the service center, so that the user can be rescued in time. When the wheelchair user needs to use the vital sign monitoring device for real-time monitoring, most users can only select extra wearable equipment or an independent human vital sign monitoring device, and extra burden is brought to the user who is inconvenient to move.

Although some wheelchairs provide USB connection sockets for human vital sign monitoring devices, the problem of installation and fixation of the vital sign monitoring devices cannot be solved, the vital sign monitoring devices and the wheelchairs cannot be integrated, and the use of users is not facilitated. Even if a permanently fixed vital sign monitoring device is arranged in some wheelchairs, the permanent fixation is not beneficial to updating, and the wheelchairs are easily eliminated and cannot be normally used today when science and technology are rapidly developed.

Disclosure of Invention

The invention aims to provide an electric wheelchair for monitoring vital signs of a human body, which is used for solving at least one technical problem and can monitor various vital signs of the human body in real time, so that the vital sign monitoring device and the wheelchair are integrated, and the electric wheelchair is beneficial to use of a user.

The embodiment of the invention is realized by the following steps:

an electric wheelchair for monitoring human vital signs comprises a wheelchair main body, wherein the wheelchair main body is provided with a human vital sign monitoring assembly.

The human body vital sign monitoring assembly comprises an acquisition module, a processor and a signal transmission module.

The acquisition module is electrically connected with the processor and is used for acquiring human body vital sign data.

The wheelchair comprises a wheelchair main body and is characterized in that a device fixing structure is arranged on the wheelchair main body, and the processor and the signal transmission module are detachably fixed on the wheelchair main body through the device fixing structure.

The processor is used for carrying out digital processing on the human body vital sign data and transmitting the human body vital sign data subjected to digital processing to the signal transmission module.

The signal transmission module is electrically connected with the processor and used for transmitting the digitally processed vital sign data of the human body.

In a preferred embodiment of the present invention, the fixing structure of the device of the electric wheelchair for monitoring human vital signs includes a push-pull tray, the push-pull tray bears the processor and the signal transmission module, and the push-pull tray is pushed in and pulled out of the wheelchair body.

The technical effects are as follows: the disassembly, the assembly and the maintenance are convenient.

In a preferred embodiment of the present invention, the push-pull tray of the electric wheelchair for monitoring human vital signs is pushed in and pulled out of the armrest portion of the wheelchair.

The upper surface of the push-pull tray is provided with a tray convex column.

The processor and the bottom surface of the signal transmission module body are provided with fixed blind holes.

The tray convex columns correspond to the fixed blind holes one by one.

The technical effects are as follows: the push-pull tray is detachably connected with the human vital sign monitoring device, and replacement and maintenance of the human vital sign monitoring device are facilitated.

In a preferred embodiment of the present invention, the collection module of the electric wheelchair for monitoring human body vital signs includes a pulse and blood pressure detection module, a temperature sensor, a fingerprint collector, a body fat measurement module and a voice collection module.

The temperature sensor is fixed on the armrest part of the wheelchair and is electrically connected with the processor.

The fingerprint collector is fixed on the armrest part of the wheelchair and is electrically connected with the processor.

The voice acquisition module is fixed on the headrest part of the wheelchair and is electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the pulse and blood pressure detecting module of the electric wheelchair for monitoring vital signs of a human body includes an arm wrapping device, a pressure sensor and a pulse sensor.

The arm wrapping device is arranged on an armrest part of the wheelchair.

The pressure sensor and the pulse sensor are arranged on the arm wrapping device and are respectively and electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the body fat measurement module of the electric wheelchair for monitoring human body vital signs includes a conductive sheet and a pair of measurement handshakes.

The measuring handles are respectively fixed on the two armrests of the armrest part of the wheelchair and are electrically connected with the processor.

The conducting strip is fixed on the pedal part of the wheelchair and is connected with a body fat detection circuit.

The body fat detection circuit is electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further includes a voice module and a speaker.

The voice module is electrically connected with the signal transmission module.

The speaker is electrically connected with the voice module.

The loudspeaker and the voice module are both fixed on the wheelchair main body.

The technical effects are as follows: the vital signs of the user can be broadcasted in time, and the early warning effect is realized.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further includes a display module.

The display module is electrically connected with the signal transmission module.

The display module and the signal transmission module are both fixed on the armrest part of the wheelchair.

The technical effects are as follows: the numerical values are visualized.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further includes a front wheel, and the integral structure of the front wheel includes a detachable hub and a detachable wheel body.

The wheel body comprises a plurality of detachable big rubber wheels and a plurality of detachable small rubber wheels.

The wheel surface of the wheel body is enclosed by the wheel surface of the large rubber wheel and the wheel surface of the small rubber wheel, and the large rubber wheel and the small rubber wheel drive the front wheel to laterally move transversely by rolling around a central shaft of the large rubber wheel and the small rubber wheel.

The technical effects are as follows: the in-situ steering of the wheelchair is realized, so that the electric wheelchair can freely pass through a narrow space.

The embodiment of the invention has the beneficial effects that:

it can real-time supervision human each item vital sign, makes vital sign monitoring devices with the wheelchair becomes an organic whole, is favorable to user's use, makes things convenient for each item vital sign monitoring devices's renewal and maintenance, and the treater is received and is come from central processing unit behind the sign abnormal signal, can to the wheelchair user sends the early warning suggestion, makes the user obtain timely help.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

The electric wheelchair for monitoring human vital signs is further described in detail with reference to the accompanying drawings and the detailed description.

FIG. 1 is a schematic structural view of an electric wheelchair for monitoring vital signs of a human body according to the present invention;

fig. 2 is a schematic diagram of the front wheel explosion structure of the electric wheelchair for monitoring human vital signs.

In the figure: 1-a wheelchair main body; 2-arm wrapping device; 3-fingerprint collector; 4-a loudspeaker; 5-front wheels; 51-small rubber wheel; 52-large rubber wheel; 53-a second fixation plate; 54-a sponge cushion; 56-wheel axle drive connection; 57-a first fixing plate; 58-hub inner shield; 510-hub outer shield; 511-Small roller rubber; 512-small roller frame; 513-needle bearings; 514-a gasket; 515-roller axle fixing assembly; 521-large roller rubber; 522-big roller framework; 6-a conductive sheet; 7-a voice acquisition module; 8-a temperature sensor; 9-display module.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The embodiment of the invention provides an electric wheelchair for monitoring human vital signs, which comprises a wheelchair main body 1, wherein the wheelchair main body 1 is provided with a human vital sign monitoring assembly, as shown in figure 1.

The human body vital sign monitoring assembly comprises an acquisition module, a processor and a signal transmission module.

The acquisition module is electrically connected with the processor and is used for acquiring human body vital sign data.

The wheelchair main body 1 is provided with a device fixing structure, and the processor and the signal transmission module are detachably fixed on the wheelchair main body 1 through the device fixing structure.

The processor is used for carrying out digital processing on the human body vital sign data and transmitting the human body vital sign data subjected to digital processing to the signal transmission module.

The signal transmission module is electrically connected with the processor and used for transmitting the digitally processed vital sign data of the human body.

In a preferred embodiment of the present invention, the fixing structure of the device of the electric wheelchair for monitoring human vital signs includes a push-pull tray, the push-pull tray bears the processor and the signal transmission module, and the push-pull tray is pushed in and pulled out of the wheelchair body.

The technical effects are as follows: the disassembly, the assembly and the maintenance are convenient.

In a preferred embodiment of the present invention, the push-pull tray of the electric wheelchair for monitoring human vital signs is pushed in and pulled out of the armrest portion of the wheelchair.

The upper surface of the push-pull tray is provided with a tray convex column.

The processor and the bottom surface of the signal transmission module body are provided with fixed blind holes.

The tray convex columns correspond to the fixed blind holes one by one.

The technical effects are as follows: the push-pull tray is detachably connected with the human vital sign monitoring device, and replacement and maintenance of the human vital sign monitoring device are facilitated.

In a preferred embodiment of the present invention, the collecting module of the electric wheelchair for monitoring human body vital signs includes a pulse and blood pressure detecting module, a temperature sensor 8, a fingerprint collector 3, a body fat measuring module and a voice collecting module 7.

The temperature sensor 8 is fixed on the armrest part of the wheelchair and is electrically connected with the processor.

The fingerprint collector 3 is fixed on the armrest part of the wheelchair and is electrically connected with the processor.

The voice acquisition module 7 is fixed on the headrest part of the wheelchair and is electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the pulse and blood pressure detecting module of the electric wheelchair for monitoring human body vital signs includes an arm wrapping device 2, a pressure sensor and a pulse sensor.

The arm wrapping device 2 is arranged on an armrest part of the wheelchair.

The pressure sensor and the pulse sensor are arranged on the arm wrapping device 2 and are respectively and electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the body fat measuring module of the electric wheelchair for monitoring human body vital signs includes a conducting strip 6 and a pair of measuring handshakes.

The measuring handles are respectively fixed on the two armrests of the armrest part of the wheelchair and are electrically connected with the processor.

The conducting strip 6 is fixed on the pedal part of the wheelchair and is connected with a body fat detection circuit.

The body fat detection circuit is electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further comprises a voice module and a speaker 4.

The voice module is electrically connected with the signal transmission module.

The speaker 4 is electrically connected to the voice module.

The loudspeaker 4 and the voice module are both fixed on the wheelchair main body 1.

The technical effects are as follows: the vital signs of the user can be broadcasted in time, and the early warning effect is realized.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further comprises a display module 9.

The display module 9 is electrically connected with the signal transmission module.

The display module 9 and the signal transmission module are both fixed on the armrest part of the wheelchair.

The technical effects are as follows: the numerical values are visualized.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further comprises a front wheel 5, and the integral structure of the front wheel 5 comprises a detachable hub and a detachable wheel body.

The wheel body comprises a plurality of large rubber wheels 52 and a plurality of small rubber wheels 51 which are detachable.

The wheel surface of the wheel body is enclosed by the wheel surface of the large rubber wheel 52 and the wheel surface of the small rubber wheel 51, and the large rubber wheel 52 and the small rubber wheel 51 drive the front wheel 5 to laterally move transversely by rolling around the central shaft of the large rubber wheel 52 and the small rubber wheel 51.

The technical effects are as follows: the in-situ steering of the wheelchair is realized, so that the electric wheelchair can freely pass through a narrow space.

The embodiment of the invention has the beneficial effects that:

it can real-time supervision human each item vital sign, makes vital sign monitoring devices with the wheelchair becomes an organic whole, is favorable to user's use, makes things convenient for each item vital sign monitoring devices's renewal and maintenance, and the treater is received and is come from central processing unit behind the sign abnormal signal, can to the wheelchair user sends the early warning suggestion, makes the user obtain timely help.

Another embodiment of the present invention is shown in fig. 1 to 2, and the embodiment provides an electric wheelchair for monitoring human vital signs, which includes a wheelchair main body 1, wherein the wheelchair main body 1 is provided with a human vital signs monitoring assembly.

The human body vital sign monitoring assembly comprises an acquisition module, a processor and a signal transmission module.

The acquisition module is electrically connected with the processor and is used for acquiring human body vital sign data.

The wheelchair main body 1 is provided with a device fixing structure, and the processor and the signal transmission module are detachably fixed on the wheelchair main body 1 through the device fixing structure.

The processor is used for carrying out digital processing on the human body vital sign data and transmitting the human body vital sign data subjected to digital processing to the signal transmission module.

The signal transmission module is electrically connected with the processor and used for transmitting the digitally processed vital sign data of the human body.

In a preferred embodiment of the present invention, the fixing structure of the device of the electric wheelchair for monitoring human vital signs includes a push-pull tray, the push-pull tray bears the processor and the signal transmission module, and the push-pull tray is pushed in and pulled out of the wheelchair body.

The technical effects are as follows: the disassembly, the assembly and the maintenance are convenient.

In a preferred embodiment of the present invention, the push-pull tray of the electric wheelchair for monitoring human vital signs is pushed in and pulled out of the armrest portion of the wheelchair.

The upper surface of the push-pull tray is provided with a tray convex column.

The processor and the bottom surface of the signal transmission module body are provided with fixed blind holes.

The tray convex columns correspond to the fixed blind holes one by one.

The technical effects are as follows: the push-pull tray is detachably connected with the human vital sign monitoring device, and replacement and maintenance of the human vital sign monitoring device are facilitated.

In a preferred embodiment of the present invention, the collecting module of the electric wheelchair for monitoring human body vital signs includes a pulse and blood pressure detecting module, a temperature sensor 8, a fingerprint collector 3, a body fat measuring module and a voice collecting module 7.

The temperature sensor 8 is fixed on the armrest part of the wheelchair and is electrically connected with the processor.

The fingerprint collector 3 is fixed on the armrest part of the wheelchair and is electrically connected with the processor.

The voice acquisition module 7 is fixed on the headrest part of the wheelchair and is electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the pulse and blood pressure detecting module of the electric wheelchair for monitoring human body vital signs includes an arm wrapping device 2, a pressure sensor and a pulse sensor.

The arm wrapping device 2 is arranged on an armrest part of the wheelchair.

The pressure sensor and the pulse sensor are arranged on the arm wrapping device 2 and are respectively and electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the body fat measuring module of the electric wheelchair for monitoring human body vital signs includes a conducting strip 6 and a pair of measuring handshakes.

The measuring handles are respectively fixed on the two armrests of the armrest part of the wheelchair and are electrically connected with the processor.

The conducting strip 6 is fixed on the pedal part of the wheelchair and is connected with a body fat detection circuit.

The body fat detection circuit is electrically connected with the processor.

The technical effects are as follows: and various vital signs of the body can be conveniently collected.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further comprises a voice module and a speaker 4.

The voice module is electrically connected with the signal transmission module.

The speaker 4 is electrically connected to the voice module.

The loudspeaker 4 and the voice module are both fixed on the wheelchair main body 1.

The technical effects are as follows: the vital signs of the user can be broadcasted in time, and the early warning effect is realized.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further comprises a display module 9.

The display module 9 is electrically connected with the signal transmission module.

The display module 9 and the signal transmission module are both fixed on the armrest part of the wheelchair.

The technical effects are as follows: the numerical values are visualized.

In a preferred embodiment of the present invention, the electric wheelchair for monitoring human vital signs further comprises a front wheel 5, and the integral structure of the front wheel 5 comprises a detachable hub and a detachable wheel body.

The wheel body comprises a plurality of large rubber wheels 52 and a plurality of small rubber wheels 51 which are detachable.

The wheel surface of the wheel body is enclosed by the wheel surface of the large rubber wheel 52 and the wheel surface of the small rubber wheel 51, and the large rubber wheel 52 and the small rubber wheel 51 drive the front wheel 5 to laterally move transversely by rolling around the central shaft of the large rubber wheel 52 and the small rubber wheel 51.

The large rubber wheels 52 and the small rubber wheels 51 are alternately arranged to form a complete outer wheel surface of the front wheel 5; the large rubber wheels 52 are uniformly distributed on the periphery of the front wheel 5 in an equal angle, the small rubber wheels 51 are uniformly distributed on the periphery of the front wheel 5 in an equal angle, and each small rubber wheel 51 fills the gap between two adjacent large rubber wheels 52.

The hub comprises a hub inner protecting cover 58, a first fixing plate 57, a wheel shaft driving connecting piece 56, a second fixing plate 53 and a hub outer protecting cover 510 which are detachably distributed from inside to outside along the axial direction of the front wheel 5.

The wheel body comprises a detachable sponge cushion 54 distributed along the radial direction of the universal wheel; the foam pad 54 of the wheel body engages the axle drive connection 56 of the hub.

The wheel shaft driving connecting piece 56 is arranged in the center of the universal wheel, and the middle part of the wheel shaft driving connecting piece is provided with a through hole for being fixedly connected with a front shaft of the electric wheelchair; grooves are formed in the periphery of the axle drive connection 56 for receiving the foam pad 54.

The foam-rubber cushion 54 is uniformly distributed on the periphery of the wheel shaft driving connecting piece 56 and is attached to the wheel shaft driving connecting piece 56.

The small rubber wheel 51 comprises a small wheel rubber 511, a small wheel skeleton 512, a needle bearing 513, a gasket 514 and a wheel shaft fixing assembly 515.

And, the large rubber wheel includes a large roller rubber 521, a large roller frame 522, the needle roller bearing 513, the gasket 514, and the roller shaft fixing assembly 515.

The roller shaft fixing component 515 is provided with a latch, and is used for being matched with the first fixing plate 57 and the second fixing plate 53; the roller shaft fixing component 515 is provided with a latch for matching with the first fixing plate 57 and the second fixing plate 53.

A first card slot group and a second card slot group are alternately arranged on the first fixing plate 57; the first clamping groove set comprises two radially distributed clamping grooves for matching with the clamping teeth on the roller shaft fixing component 515 of the large rubber wheel 52, and the second clamping groove set comprises two radially distributed clamping grooves for matching with the clamping teeth on the roller shaft fixing component 515 of the small rubber wheel 51; and a third clamping groove is arranged between the first clamping groove group and the second clamping groove group and is used for being matched with the clamping teeth on the hub inner protecting cover 58.

The first card slot group and the second card slot group are alternately arranged on the second fixing plate 53; the first clamping groove set comprises two radially distributed clamping grooves for matching with the clamping teeth on the roller shaft fixing component 515 of the large rubber wheel 52, and the second clamping groove set comprises two radially distributed clamping grooves for matching with the clamping teeth on the roller shaft fixing component 515 of the small rubber wheel 51; and the third clamping groove is arranged between the first clamping groove group and the second clamping groove group and is used for being matched with the clamping teeth on the hub outer protecting cover 510.

A first screw hole is formed in the hub inner protecting cover 58, a second screw hole is formed in the first fixing plate 57, and the first screw hole is matched with the second screw hole; the hub outer protecting cover 510 is provided with a third screw hole, the second fixing plate 53 is provided with a fourth screw hole, and the third screw hole is matched with the fourth screw hole.

The technical effects are as follows: the in-situ steering of the wheelchair is realized, so that the electric wheelchair can freely pass through a narrow space.

The embodiment of the invention has the beneficial effects that:

it can real-time supervision human each item vital sign, makes vital sign monitoring devices with the wheelchair becomes an organic whole, is favorable to user's use, makes things convenient for each item vital sign monitoring devices's renewal and maintenance, and the treater is received and is come from central processing unit behind the sign abnormal signal, can to the wheelchair user sends the early warning suggestion, makes the user obtain timely help.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.