CN215307516U

CN215307516U - Wheel chair

Info

Publication number: CN215307516U
Application number: CN202120451663.0U
Authority: CN
Inventors: 章伯伦; 陈雅枫
Original assignee: Guangzhou Xicoo Medical Technology Co ltd; Guangzhou Shiyuan Electronics Thecnology Co Ltd
Current assignee: Guangzhou Xicoo Medical Technology Co ltd; Guangzhou Shiyuan Electronics Thecnology Co Ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-12-28
Anticipated expiration: 2031-03-02

Abstract

The utility model discloses a wheelchair, which comprises a chair body, wherein a headrest is arranged on the chair body, at least a first air bag is arranged on the headrest, the first air bag is connected with an inflation assembly through an inflation conduit, the inflation assembly is connected with the chair body, the first air bag has a contraction state and an inflation state, and when the first air bag is in the contraction state, the first air bag is accommodated at the periphery of the headrest; when first gasbag was in the gas filled state, first gasbag protrusion in the front side of headrest and with the headrest between form the first protected area of protection people's head, be provided with the control subassembly on the chair body, the control subassembly is connected with gas filled assembly, when the control subassembly detected the inclination of chair body and was dangerous angle, the control subassembly control gas filled assembly aerifys. Through setting up first gasbag in the week portion of headrest, when the wheelchair appears empting, first gasbag is aerifyd and is protected the protection zone of taking personnel's head with the headrest formation, effectively avoids taking personnel's head to receive external colliding with and causes the damage.

Description

Wheel chair

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair with an air bag.

Background

The wheelchair is an important mobile tool for home rehabilitation, turnover transportation, treatment and outgoing activities of wounded persons, patients and disabled persons, not only meets the requirements of physical disabilities and mobility-handicapped persons for riding instead of walking, but also facilitates the family members to move and care for the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair. However, at present, many roads do not meet the construction requirements of municipal roads, dangerous ramps exist, the conditions of parts of the roads are complex, the capability of controlling the center of gravity of the old people with slow response or the disabled people with physical disabilities and skeletal muscle deformation is greatly reduced when the old people drive the wheelchair, and the hidden danger that the wheelchair falls down and falls exists when the old people drive on slopes or complex roads.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to: provided is a wheelchair which can protect a rider when the wheelchair is tilted.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the wheelchair comprises a chair body, wherein a headrest is arranged on the chair body, at least a first air bag is arranged on the headrest, the first air bag is connected with an inflation assembly through an inflation conduit, the inflation assembly is connected with the chair body, the first air bag has a contraction state and an inflation state, and when the first air bag is in the contraction state, the first air bag is accommodated in the periphery of the headrest; when the first air bag is in the inflation state, the first air bag protrudes out of the front side face of the headrest and forms a first protection area for protecting the head of a person between the headrests, a monitoring assembly is arranged on the chair body and connected with the inflation assembly, the monitoring assembly detects that the inclination angle of the chair body is a dangerous angle, and the monitoring assembly controls the inflation assembly to inflate.

The utility model has the beneficial effects that: through setting up first gasbag in the week portion of headrest, when the wheelchair appears empting, the subassembly is inflated to first gasbag in the control rapidly, and first gasbag is changed into the gas filled state by the state of accomodating after aerifing, and the first gasbag that is in the gas filled state and headrest form first protection zone, and the personnel's that take head safety of wheelchair can be protected in first protection zone, and the head of avoiding taking personnel receives external colliding with and causes the damage.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

FIG. 1 is a schematic view of a wheelchair in accordance with an embodiment of the present invention (with the first, second, and third air cells all in an inflated condition).

Fig. 2 is a schematic structural view of a wheelchair according to an embodiment of the present invention (the first, second, and third air cells are all in a contracted state).

Fig. 3 is a partial structural view of a wheelchair according to an embodiment of the present invention.

Fig. 4 is a schematic view of the state of protecting the passenger by the air bag on the wheelchair according to the embodiment of the utility model.

FIG. 5 is a side elevational view of the wheelchair of the present invention.

Figure 6 is a schematic view of a wheelchair leaning to the rear in an embodiment of the utility model.

In the figure:

101. a first air bag; 102. a second air bag; 103. a third air cell; 104. a connecting member; 2. an inflation assembly; 3. an inflation conduit; 4. a chair body; 401. a backrest; 402. a cushion; 403. a handrail; 5. riding personnel; 6. a slope; 7. a monitoring component; 8. a support; 9. a wheel; 10. a pedal.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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.

As shown in fig. 1 and 3 to 6, the wheelchair of the present invention comprises a chair body 4, the chair body 4 comprises a backrest 401 and a seat cushion 402 which are connected with each other, a headrest is arranged on the backrest 401, at least a first airbag 101 is arranged on the headrest, the first airbag 101 is connected with an inflation assembly 2 through an inflation conduit 3, the inflation assembly 2 is connected with the chair body 4, the first airbag 101 has a contracted state and an inflated state, referring to fig. 2, when the first airbag 101 is in the contracted state, the first airbag 101 is accommodated at the periphery of the headrest, when the first airbag 101 is in the inflated state, a first protection area for protecting the head of an occupant 5 is formed between the first airbag 101 and the headrest, when the first airbag 101 protrudes out of the front side of the backrest 401, which in this embodiment refers to the side of the backrest 401 close to the occupant 5 when the occupant 5 sits on the wheelchair, a monitoring assembly 7 is arranged on the chair body 4, the monitoring component 7 is connected with the inflation component 2, and when the monitoring component 7 detects that the inclination angle of the chair body 4 is a dangerous angle, the monitoring component 7 controls the inflation component 2 to inflate. Through setting up first gasbag 101 at the week portion of headrest, when the wheelchair appears empting, monitoring subassembly 7 can control rapidly and inflate subassembly 2 and aerify first gasbag 101, and first gasbag 101 becomes the gas filled state by the state of accomodating after aerifing, and first gasbag 101 and headrest in the gas filled state form first protection zone, and first protection zone can protect the 5 head safety of the passenger of wheelchair, avoids passenger 5's head to receive external colliding with and causes the damage.

Specifically, the danger angle is 30 degrees to 45 degrees, and due to the slope 6 on the road surface, the first airbag 101 can be in a contracted state when the wheelchair normally passes on the slope 6 by setting the danger angle, so that the first airbag 101 is ensured not to influence the normal passing of the passenger 5.

In this embodiment, when the first airbag 101 is in an inflated state, one side of the first airbag 101 is connected to the periphery of the headrest, and the other side is suspended, and at this time, the first airbag 101 protrudes from the front side of the backrest 401, and the first airbag 101 and the backrest 401 form a first protection area to protect the head of the occupant 5.

Specifically, first gasbag 101 can be provided with a plurality ofly, and every first gasbag 101 all is connected with the headrest, in this embodiment, is provided with three first gasbag 101, and three first gasbag 101 is the contained angle in proper order and connects, and when first gasbag 101 was in the inflation state, three first gasbag 101 was arranged on the headrest in the U-shaped, and first guard space can protect 5 head both sides regions of passenger and the overhead position simultaneously this moment, had guaranteed the safety of 5 heads of passenger when the wheelchair emptyd.

Specifically, the three first airbags 101 can be sequentially connected through the third vent holes, so that the inflation conduit 3 can be used for inflating all the first airbags 101 only by being connected with one of the first airbags 101, the number of the inflation conduit 3 is reduced, and referring to fig. 1, the three first airbags 101 are different in size and are provided with the third vent holes, so that the air pressure inside the different first airbags 101 can be equalized.

Of course, in other embodiments, only one first airbag 101 may be provided, and in this case, the cross-sectional shape of the first airbag 101 in the inflated state is U-shaped or arc-shaped, so that the two side areas of the head and the head top position of the occupant 5 can be protected at the same time, thereby ensuring the buffering effect of the first airbag 101.

Specifically, the backrest 401 is provided with the second air bags 102 on both sides, the second air bags 102 are connected with the inflation assembly 2 through the inflation conduits 3, when the second air bags 102 are in an inflation state, the second air bags 102 protrude out of the front side surface of the backrest 401, and the backrest 401 and the two second air bags 102 form a second protection area which is positioned below the first protection area. Through setting up the second protection zone in the below in first protection zone, when the wheelchair emptys, second gasbag 102 can carry out buffer protection to the truck and the shoulder of taking personnel 5, avoids the truck and the shoulder of taking personnel 5 to be collided with the damage by the external world when empting. Of course, in order to achieve the protective effect of the first and

second airbags

101 and 102, the head and the trunk of the occupant 5 do not protrude from the first and second protection regions in the advancing direction of the wheelchair.

When the second airbag 102 is in a contracted state, the second airbag 102 is stored at two opposite sides of the backrest 401, and when the second airbag 102 is changed from the contracted state to an inflated state through inflation, the second airbag 102 protrudes from two sides of the backrest 401 to form a second protection area with the backrest 401, so that the protection effect of the second airbag 102 on the passenger 5 is realized.

Specifically, the first air bag 101 is connected with the second air bag 102, and the second air bag 102 is communicated with the first air bag 101 through the first vent hole, at this time, the inflation catheter 3 only needs to be connected with one of the second air bag 102 and the first air bag 101 to complete the inflation operation of the second air bag 102 and the first air bag 101, so that the use of the inflation catheter 3 is reduced; by connecting the first airbag 101 and the second airbag 102 such that the first airbag 101 and the second airbag 102 wrap the head, shoulder, and torso positions of the occupant 5 at the same time, the protective effect of the first airbag 101 and the second airbag 102 is improved.

Specifically, the third airbags 103 are disposed on two sides of the seat body 4, the third airbags 103 are connected to the inflation assembly 2 through the inflation tubes 3, when the third airbags 103 are in the inflated state, the third airbags 103 are disposed on two sides of the seat cushion 402 and protrude from the upper side of the seat cushion 402, the upper side in this embodiment refers to a side of the seat cushion 402 close to the occupant 5 when the occupant 5 sits on the wheelchair, the seat cushion 402 and the two third airbags 103 form a third protection area, and the third protection area is located below the second protection area. Through setting up the third protection zone, when the wheelchair appears toppling over, third gasbag 103 can cushion the protection to the shank of passenger 5, has reduced the injured probability of the shank of passenger 5.

In an embodiment, the third airbag 103 and the second airbag 102 are communicated through the second vent hole, and by providing the second vent hole, the inflation conduit 3 can be inflated only by being connected with one of the first airbag 101, the second airbag 102 and the third airbag 103, so that the use of the inflation conduit 3 is reduced, the air pressure inside the third airbag can be balanced by the second vent hole, and the difficulty of the inflation operation is reduced.

In the present embodiment, referring to fig. 2, the third airbag 103 in the contracted state is housed on the opposite sides of the seat cushion 402, and the second airbag 102 in the contracted state is housed on the opposite sides of the backrest 401, and referring to fig. 1, 3 and 4, a flexible connecting member 104 is provided between the second airbag 102 and the third airbag 103, the connecting member 104 connects the second airbag 102 and the third airbag 103, respectively, the connecting member 104 may be flexible plastic, specifically, the connecting member 104 may be a PU film, and of course, the connecting member 104 may also be made of cloth or other flexible materials. Because the second airbag 102 and the third airbag 103 are respectively accommodated at the side edges of the backrest 401 and the seat cushion 402, and the second airbag 102 and the third airbag 103 are respectively unfolded to an inflated state from different directions, the second airbag 102 and the third airbag 103 cannot be directly connected, and are connected through the flexible connecting piece 104, so that the second airbag 102 and the third airbag 103 can be smoothly accommodated and inflated and unfolded, and the first airbag 101, the second airbag 102, the connecting piece 104, the third airbag 103 and the seat cushion 402 form a complete annular structure to wrap the passenger 5 on the wheelchair, and the protection effect is better.

Specifically, when the first airbag 101, the second airbag 102, and the third airbag 103 are all in the inflated state, the connecting member 104 is located above the armrest 403 of the wheelchair, and the bent position formed by the connecting member 104 and the second airbag 102 allows the occupant 5 to place an arm, so that the second airbag 102 can also buffer the arm of the occupant 5, thereby improving the protection effect on the occupant 5.

Specifically, the monitoring assembly 7 comprises a control piece and an electronic gyroscope, the control piece is respectively connected with the electronic gyroscope and the inflation assembly 2, the electronic gyroscope is used for detecting the inclination angle of the chair body 4, when the electronic gyroscope detects that the inclination angle of the chair body 4 is a dangerous angle, the electronic gyroscope sends a signal to the control piece, the control piece carries out data analysis after receiving the signal and sends an instruction to the inflation assembly 2, and the inflation assembly 2 rapidly releases gas to inflate the first air bag 101, the second air bag 102 and the third air bag 103 after receiving the instruction.

Specifically, the monitoring assembly 7 further comprises an acceleration sensor, the acceleration sensor is connected with the control member, when the acceleration sensor detects that the acceleration of the wheelchair is abnormal, a signal is sent to the control member, the control member performs data analysis after receiving the signal and sends an instruction to the inflation assembly 2, and the inflation assembly 2 rapidly releases gas after receiving the instruction to inflate the first air bag 101, the second air bag 102 and the third air bag 103.

In particular, the acceleration is greater than 5m/s²The time belongs to an abnormal acceleration (wherein m is a length unit meter, and s is a speed unit second), and the acceleration sensor sends a signal to the control piece at the time.

Specifically, referring to fig. 3, the monitoring assembly 7 and the inflation assembly 2 are both disposed below the seat cushion 402, the inflation assembly 2 includes a gas valve controller and a compressed gas cylinder, the gas valve controller is respectively connected to the control element, the acceleration sensor and the compressed gas cylinder, and the compressed gas cylinder is connected to the inflation conduit 3, when the gas valve controller receives an instruction sent by the control element or the acceleration sensor, the gas valve controller opens a gas valve on the compressed gas cylinder, and gas in the compressed gas cylinder enters the first air bag 101, the second air bag 102 and the third air bag 103 through the inflation conduit 3, so as to inflate the three air bags, and the first air bag 101, the second air bag 102 and the third air bag 103 can be rapidly switched from the contracted state to the inflated state.

Specifically, the wheelchair is further provided with a power supply, the power supply is respectively connected with the monitoring assembly 7 and the inflation assembly 2, the power supply can supply power to the monitoring assembly 7 and the inflation assembly 2 in real time, and when the chair body 4 is at a dangerous angle or the acceleration of the movement of the chair body is abnormal, the control piece can be guaranteed to timely control the inflation of the compressed gas cylinder to the first air bag 101, the second air bag 102 and the third air bag 103 through the gas valve controller.

Specifically, still be provided with support 8 on the wheelchair, chair body 4 installs on support 8, still install two sets of wheels 9 of variation in size at the interval along the advancing direction of wheelchair on support 8, a set of wheel 9 diameter that is in the place ahead is less than the diameter of another set of wheel 9, be provided with two unanimous wheels 9 of size in every group, two wheels 9 of every group are installed respectively in support 8 both sides at advancing direction, two footboards 10 are still installed to support 8's below, footboard 10 can supply passenger 5 to step on, make passenger 5 can sit on the wheelchair more comfortablely.

Claims

1. A wheelchair comprises a chair body, wherein a headrest is arranged on the chair body, and is characterized in that at least a first air bag is arranged on the headrest, the first air bag is connected with an inflation assembly through an inflation conduit, the inflation assembly is connected with the chair body, the first air bag has a contraction state and an inflation state, and when the first air bag is in the contraction state, the first air bag is accommodated at the periphery of the headrest; when the first air bag is in the inflation state, the first air bag protrudes out of the front side face of the headrest and forms a first protection area for protecting the head of a person between the headrests, a monitoring assembly is arranged on the chair body and connected with the inflation assembly, the monitoring assembly detects that the inclination angle of the chair body is a dangerous angle, and the monitoring assembly controls the inflation assembly to inflate.

2. The wheelchair of claim 1 wherein the monitoring assembly includes a control member and an electronic gyroscope, the electronic gyroscope is connected to the control member, the inflation assembly is connected to the control member, and the control member controls the inflation assembly to inflate when the electronic gyroscope detects that the angle of inclination of the chair body is a dangerous angle.

3. The wheelchair of claim 1 wherein the hazard angle is 30 to 45 degrees.

4. The wheelchair of claim 2 wherein the monitoring assembly further comprises an acceleration sensor coupled to the control member, the control member controlling the inflation assembly to inflate when the acceleration sensor detects an acceleration anomaly of the seat body.

5. Wheelchair according to claim 4, characterized in that the abnormal range of acceleration is more than 5m/s²。

6. A wheelchair as claimed in any one of claims 1 to 5, wherein the seat body includes a backrest, the headrest is provided at an upper end of the backrest, second air cells are provided on both sides of the backrest, the second air cells are connected to the inflation assembly, the second air cells project out of a front side of the backrest when in the inflated state, the backrest and the two second air cells form a second protection zone, and the second protection zone is located below the first protection zone.

7. The wheelchair of claim 6 wherein said first bladder and said second bladder are connected, said first bladder and said second bladder being in communication through a first vent.

8. The wheelchair of claim 6 wherein the seat body includes a cushion, the cushion is connected to the backrest, third air cells are disposed on both sides of the cushion, the third air cells are connected to the inflation assembly, the third air cells protrude from the upper side of the cushion when in the inflated state, and the cushion and the two third air cells form a third protection zone.

9. The wheelchair of claim 8 wherein the third bladder and the second bladder are in communication through a second vent.

10. The wheelchair of claim 8 wherein the third bladder and the second bladder are connected by a flexible connection.

11. A wheelchair as claimed in any one of claims 1 to 5, wherein a plurality of first air cells are provided, each first air cell being connected to the headrest, the plurality of first air cells being connected in series at an included angle, the plurality of first air cells in the inflated condition being arranged in a U-shape on the headrest; or the like, or, alternatively,

the first air bag is provided with one air bag, and the cross section of the first air bag in the inflated state is U-shaped or arc-shaped.