CN216725001U

CN216725001U - Anti-falling wheelchair

Info

Publication number: CN216725001U
Application number: CN202123454586.3U
Authority: CN
Inventors: 阳巧; 王佳惠; 蒋雪
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-14
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to an anti-falling wheelchair. It includes: a seat back for providing support to a user's back, a seat cushion for the user to sit down, and a protective barrier for preventing the user from falling out of the wheelchair in a wheelchair-heeled state. The protective baffle comprises a first baffle arranged on two sides of the cushion and a second baffle arranged on two sides of the chair back, and the first baffle and the second baffle are both arc-shaped. The utility model has scientific design, high comfort level and high use reliability.

Description

Anti-falling wheelchair

Technical Field

The utility model relates to the technical field of nursing instruments, in particular to an anti-falling wheelchair.

Background

Wheelchairs, which are a kind of vehicle, are more and more common in life, but often due to some design defects or special terrain during use, the wheelchairs overturn and the users fall out of the wheelchairs during use. The side of the wheelchair is provided with the baffle plate in the prior art, so that the user is prevented from falling out of the wheelchair to a certain extent under the condition that the wheelchair of the user turns on the side.

For example, CN106890053A discloses an electronic wheelchair with adjustable, including the bottom sprag frame, the bottom sprag frame left side is equipped with the front wheel, the bottom sprag frame left end is equipped with the running-board, the bottom sprag frame right side is passed through driving motor and is connected the rear wheel, the bottom sprag frame middle part is equipped with the hydraulic pressure crane, the sliding seat is connected to the hydraulic pressure crane, the spout has been seted up to the sliding seat upper end, the sliding seat left end is equipped with the preceding baffle, the sliding seat right-hand member is equipped with the backplate, preceding baffle and backplate pass through the bearing and connect the lead screw, the cover is equipped with the slider on the lead screw, the bedplate is connected to the slider, both sides all are equipped with the handrail around the bedplate upper end, the bedplate rear end is equipped with the back.

CN213098851U discloses a medical wheelchair with prevent falling function, including V-arrangement pedal pole, footboard and locating lever, the right side fixedly connected with backup plate of bedplate, the top fixedly connected with push handle of backup plate, the top fixed mounting of bedplate has the bar, the fixed surface of bar installs the handrail pad, the fixed surface of bar even installs the baffle, the back fixed mounting of baffle has the folded sheet, the folded sheet includes the bracing piece, the dwang has been run through at the top of bracing piece, the one end fixedly connected with fixed block that the dwang is located the bracing piece right side the top of fixed block is rotated through the hinge and is connected with the straight board.

Above-mentioned prior art all is provided with the baffle in handrail department, has solved the problem that the user falls out the wheelchair easily. However, in the prior art, the baffle is only arranged at the handrail, and the baffle is made of hard materials and is in a flat plate shape. Such a setting mode can't play protection and limiting displacement to user's upper part of the body, when the user is the patient of a high-order paraplegia, can only carry out spacingly to the user with the help of the baffle of handrail and handrail department, and user's waist does not have suitable support, and user's upper part of the body falls partially, leads to the backbone to be in abnormal posture, and this can lead to user's skeleton to warp in the past, even the muscle spasm appears etc. problem in the long run. And when the plate-shaped baffle plate turns on the side, a user can easily lean against the baffle plate and slide out of the wheelchair along the baffle plate, so the design still has use defects.

Furthermore, on the one hand, due to the differences in understanding to those skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides an anti-falling wheelchair, which comprises: a seat back for providing support to a user's back, a seat cushion for the user to sit down, and a protective barrier for preventing the user from falling out of the wheelchair in a wheelchair-heeled state. The protective baffle comprises a pair of first baffles which are respectively and oppositely arranged on two sides of the seat cushion and a pair of second baffles which are respectively and oppositely arranged on the back side of the chair. The first baffle comprises a first height h₁And has a second height h₂A second section of a second height h₂The second baffle plate is arranged to be smaller than the first height h in a mode that the second baffle plate can be communicated with the outside air to form a heat dissipation channel₁. The second baffle plate has a third height h₃And has a fourth height h₄The third height h₃Is set to be greater than the fourth height h in such a manner that the contact area with the user can be increased₄。

According to a preferred embodiment, the pair of first baffle plates are disposed such that the first section is close to the knees of the user and the second section is close to the buttocks of the user so as to restrict the position of the lower limbs of the user when the user sits on the wheelchair.

According to a preferred embodiment, a pair of the second barriers is provided in such a manner that the third section is close to the waist of the user and the fourth section is close to the shoulder of the user, in a state where the user is seated on the wheelchair and the back is abutted against the seatback.

According to a preferred embodiment, the backrest is provided with a first fixing element which is arranged on the side of the backrest remote from the patient in such a way that the position of the backrest and the second flap can be limited during use. The seat cushion is provided with a second fixing component, and the second fixing component is arranged on one side of the seat cushion close to the ground in a mode of limiting the positions of the seat cushion and the first baffle plate when in use.

According to a preferred embodiment, the side of the first flap facing the user is provided in an arc shape having a first arc in such a manner as to facilitate the seating of the user. One side of the second baffle, which faces the user, is provided with a second arc with a second radian, wherein the first radian is larger than the second radian so as to adapt to leg and waist structures of the human body.

According to a preferred embodiment, the first fastening element comprises a first region and a second region, the side of the first region facing the backrest being in interference connection with the side of the backrest facing away from the user. One side of the second area, which faces the chair back, is connected with one side, which is far away from the user, of the second baffle in an abutting mode. The second region has a shape conforming to the shape of the second flap, and an edge of the second flap is higher than an edge of the second region when the first fixing member is attached to the seatback.

According to a preferred embodiment, the second securing element comprises a third region and a fourth region, the third region being in interference connection with the side of the seat cushion facing away from the user. One side of the fourth area facing the seat cushion is connected with one side of the first baffle plate far away from the user in an abutting mode. The fourth area has a shape conforming to the shape of the first flap, and an edge of the first flap is higher than an edge of the fourth area when the second fixing member is attached to the seat cushion.

According to a preferred embodiment, two second baffles arranged on both sides of the seat back are arranged opposite to each other at a first angle.

According to a preferred embodiment, the two first baffles arranged on both sides of the seat cushion are arranged at a second angle to each other.

According to a preferred embodiment, the side of the second flap which is in contact with the user is configured in an ergonomically designed arc in such a way that it can be placed against the waist of the user.

The utility model has the beneficial technical effects that:

first, the arrangement of the first baffle and the second baffle can simultaneously take into account the protection and the positioning of the lower body of the user and the protection and the positioning of the upper body of the user, and under the condition that the wheelchair is inclined, the first section of the first baffle and the third section of the second baffle can provide an acting point for the user, so that the patient is prevented from falling out of the wheelchair. Under the condition that the wheelchair topples over, first baffle and second baffle can provide cushioning effect for the user to weaken the shock that the user received, reduce the injury that the user received.

The second, the third section is located user's waist, can provide the supporting role for user's waist to the correct gesture of user in the wheelchair can help keeping to a pair of relative third section that sets up, so that some users that the waist can't exert oneself keep the backbone to be in normal atress gesture when taking, can avoid user's skeleton and muscle injury, the person of looking after of being convenient for again pushes away, avoids the patient to drop.

Thirdly, the stability and the reliability of wheelchair can be increased in the setting of first fixed part and second fixed part to thereby can be because the user changes the angle between two first baffles and two second baffles to the pressure that the back of the chair and the cushion of wheelchair produced under the condition that the user took, make first baffle and second baffle and user's physical contact inseparabler.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

fig. 2 is a left side view of a preferred embodiment of the present invention.

List of reference numerals

100: chair back 200: cushion 110: second baffle

210: first baffle 111: third section 211: the first section

220: second fixing member 120: first fixing member 212: second section

112: the fourth section

Detailed Description

This is described in detail below with reference to fig. 1-2.

The wheelchair is a common walking-replacing tool for the group with mobility difficulty, is quite common in daily life, and various improvements on the wheelchair are quite common, but the wheelchair still turns over due to terrain, control or some special emergencies in the using process. Because the users of the wheelchair often have inconvenience in hands and feet, the users are more easily injured when turning on one's side. Therefore, the proper baffle plate arrangement can provide a certain degree of buffering and protection for a user, and can prevent the user from falling out of the wheelchair to cause secondary damage. In the normal travelling process, the arrangement of the baffle can help the user to keep a correct sitting posture, and strain of muscles of the user caused by wrong postures in the moving process is avoided; the bone is improperly stressed due to the wrong posture, resulting in irreversible damage.

Example 1

The utility model provides an anti-falling wheelchair which comprises a protective baffle. The protective baffle is used for preventing a user from falling out of the wheelchair to cause secondary damage in the side-tipping state of the wheelchair. The protective baffle comprises a pair of first baffles 210 oppositely arranged at two sides of the seat cushion 200 and a pair of second baffles 110 oppositely arranged at two sides of the chair back 100, and the first baffles 210 and the second baffles 110 are arc baffles. Through the arrangement mode, the upper half body and the lower half body of the patient can be protected, so that the protection effect is better when the patient turns on one's side. The situation that the lower body of the patient is left in the wheelchair and the upper body of the patient falls out of the wheelchair to cause twisting injury to the waist is avoided.

According to a preferred embodiment, the first baffle 210 comprises a first section 211 and a second section 212, the first section 211 having a first height h₁The second section 212 has a second height h₂. Second highestDegree h₂Is less than the first height h₁. So that first baffle 210 is under the condition with the user contact, increase the area of contact of one side that the user contacted first baffle 210 and air when not influencing first baffle 210's spacing effect, thereby increase heat radiating area, accelerate heat dissipation speed, make the heat that one side that the user contacted first baffle 210 produced owing to receiving friction and pressure can exchange to the air in faster, thereby can reduce the skin temperature of one side that the user contacted first baffle 210, so as to reduce the risk that the user produces the bedsore owing to contacting friction with first baffle 210. The second baffle 110 includes a third height h₃And has a fourth height h₄A fourth section 112, a third height h₃Is greater than the fourth height h₄. The third section 111 is disposed near the waist of the user, and the fourth section 112 is disposed near the shoulders of the user. Increasing the height of the third section 111 is advantageous to increase the contact area of the second barrier 110 with the user's waist, so that the user's waist can be sufficiently supported, and thus the user's waist can maintain an upright posture, preventing the user from falling over, supported by the second barriers 110 on both sides. The lower height of the fourth section 112 is beneficial to reduce the obstruction of the hand manipulation of the wheelchair by the second baffle 110, and is convenient for increasing the use comfort of the wheelchair while maintaining the positioning limiting effect on the upper body of the user.

Preferably, in a case where the patient sits on the wheelchair, the third sections 111 of the second barrier 110 disposed at both sides of the chair back 100 are located at the waist of the user, and the fourth sections 112 of the second barrier 110 are located at the shoulders of the user. Preferably, the third height h of the third section 111₃Is at least greater than the average thickness of the elderly waist. So as to be convenient for protecting the elderly with good stature. Through the arrangement mode, the third section 111 with the higher second baffle 110 can be abutted against the waist of a patient, the fourth section 112 cannot cause the restraint and the extrusion to the shoulder of the user when in use, and the wheelchair is convenient to control the wheelchair to move by extending the hands when the user acts independently. And in the event of a rollover, the third zone of the second barrier 110The segment 111 can provide a point of attack and cushioning for the patient's waist, thereby protecting the patient's waist when it is turned on his side.

According to a preferred embodiment, the first sections 211 of the first barrier 210 disposed on both sides of the seat cushion 200 are located on both sides of the thighs of the user, and the second sections 212 of the first barrier 210 are located on both sides of the buttocks of the user. With the user sitting on the wheelchair, the first section 211 of the first baffle 210 abuts the user's thighs away from the buttocks, while the second section 212 of the first baffle 210 can be located on either side of the patient's buttocks. Preferably, the first height h of the first section 211₁At least greater than the average thickness of the thighs of the elderly. By the arrangement mode, the legs of the patient can be limited in the wheelchair when the wheelchair is used, and the acting point and the buffer can be provided for the thighs of the user when the wheelchair turns over. The wheelchair can be prevented from falling off when the patient turns on one's side, and the shock to the patient's body caused by the patient falling can be reduced. And has a second height h at the position of the patient's buttocks₂ Second section 212 has a first height h due to its relative position₁The first section 211 is recessed, thus enabling the wheelchair to form a heat dissipation channel in the hip position of the patient, which enables gas exchange with the outside. The wheelchair can be suitable for patients to use in hot weather, and the occurrence probability of bedsore is reduced.

According to a preferred embodiment, the chair back 100 is further provided with a first fastener 120. The first fixing member 120 is disposed on a side of the backrest 100 away from the patient. The first fixing member 120 can restrict the positions of the seat back 100 and the second blocking plate 110 when in use. Preferably, the first fixing member 120 includes a first region and a second region, the first region is in interference connection with a side of the chair back 100 away from the user toward a side of the chair back 100, and the second region is in interference connection with a side of the second barrier 110 away from the user toward a side of the chair back 100. The second region has a shape similar to that of the second barrier 110. Preferably, two second regions respectively abutting against the sides of the two second baffles 110 far away from the user are integrally formed with the first regions at a first angle to each other and are disposed at two sides of the first regions close to the second baffles 110. With this arrangement, when the upper body of the wheelchair abuts against the seat back 100, the first fixing member 120 can provide a supporting function for the user, and durability and reliability of the wheelchair are improved. And the chair back 100 can be abutted more tightly against the first fixing part 120 due to the abutting force of the user, so that the second region of the first fixing part 120 can press the second barrier 110 to make the second barrier 110 contact more tightly with the waist of the patient.

According to a preferred embodiment, the side of the first flap 210 facing the user is provided with a first arc having a first arc. The side of the second barrier 110 facing the user is provided in a second arc shape having a second arc in such a manner as to be convenient for the user to sit. Since the thickness of the waist of the human body is smaller than that of the thighs, the first radian is larger than the second radian to adapt to the structures of the waist and the legs of the human body, so that the first baffle 210 can be closely attached to the thighs of the human body, and the second baffle 110 can be closely attached to the waist of the human body. Preferably, when the first fixing member 120 is coupled to the seatback 100, the edge of the second flap 110 is higher than the edge of the second region. Preferably, the second baffle 110 is configured to have a certain flexibility so as to provide a better cushioning effect. And the second barrier 110 has greater flexibility than the first fixing member 120. With such an arrangement, the comfort of use of the wheelchair can be improved while imparting higher reliability to the wheelchair. When the wheelchair is used by a patient, the wheelchair has sufficient comfort, and the body part of the user is not damaged by the harder first fixing part 120 when contacting or colliding with the edge of the second baffle 110. And the friction force between the wheelchair and the ground can be increased and the sliding area of the wheelchair can be reduced under the condition of side turning.

According to a preferred embodiment, a second stationary component 220 is also provided on the wheelchair. The second fixing member 220 is coupled to a side of the wheelchair cushion 200 adjacent to the ground. The connection can be a fixed connection or a detachable connection. The second fixing member 220 can restrict the positions of the seat cushion 200 and the first barrier 210 when in use. Preferably, the second fixing member 220 includes a third region and a fourth region, the third region is in interference connection with a side of the seat cushion 200 away from the occupant toward a side of the seat cushion 200, and the fourth region is in interference connection with a side of the first baffle 210 away from the occupant toward a side of the seat cushion 200. The fourth region has a shape similar to the first baffle 210. Preferably, two fourth regions respectively abutting against the sides of the two first baffles 210 far away from the user are integrally formed with the third regions at a second angle to each other and are disposed on two sides of the third regions close to the first baffles 210. By such an arrangement, the second fixing member 220 can provide a certain supporting force to the user when the user sits on the wheelchair to improve the reliability of the device. And the cushion 200 can be contacted with the second fixing part 220 more closely due to the existence of the gravity of the user, so that the fourth area of the second fixing part 220 can also extrude the first baffle 210, thereby the first baffle 210 is contacted with the legs of the patient more closely, and the protection effect and the comfort of the first baffle 210 can be improved.

Preferably, when the second fixing member 220 is coupled to the seat cushion 200, the edge of the first barrier 210 is higher than the edge of the fourth area. The first baffle 210 is configured to have a certain flexibility. Through such an arrangement, when the patient uses the wheelchair, the wheelchair has sufficient comfort, and the body part of the user does not hurt the patient due to the existence of the hard second fixing member 220 when the body part of the user contacts or collides with the edge of the first baffle 210. And can provide sufficient cushioning for the user when the user rolls over. And the friction force between the wheelchair and the ground can be increased and the sliding area of the wheelchair can be reduced under the condition of side turning.

According to a preferred embodiment, the two second baffles 110 disposed on both sides of the chair back 100 are disposed opposite to each other at a first angle in extension along a line from the chest to the back of a patient sitting on the wheelchair. Preferably, the first angle is an acute angle. So that the user can conveniently sit on the wheelchair.

According to a preferred embodiment, the two first baffles 210 disposed at both sides of the seat cushion 200 are disposed at a second angle to each other along an extension line of a line from the chest to the back of a patient sitting on the wheelchair. Preferably, the second angle is an acute angle to facilitate the user in sitting the wheelchair.

According to a preferred embodiment, the side of the third segment 111 of the second flap 110 that contacts the user is configured in an ergonomically curved shape to fit snugly around the user's waist.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of this disclosure, may devise various solutions which are within the scope of this disclosure and are within the scope of the utility model. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims

1. An anti-fall wheelchair comprising: a chair back (100) for providing a supporting force to the back of a user, a seat cushion (200) for the user to sit down and a protective barrier for preventing the user from falling out of the wheelchair in a wheelchair tilted state,

the protective baffle comprises a pair of first baffles (210) which are respectively and oppositely arranged at two sides of the cushion (200) and a pair of second baffles (110) which are respectively and oppositely arranged at two sides of the chair back (100),

the first baffle (210) comprises a first height h₁And has a second height h₂The first height h, the second section (212) of₁The first baffle (210) is set to be larger than the second height h in a mode of communicating with the outside air to form a heat dissipation channel₂；

The second baffle (110) comprises a third height h₃And a third section (111) having a fourth height h₄Of a fourth section (112), the fourth height h₄Is set to be less than the third height h in a manner of increasing the contact area of the second baffle (110) with the user₃。

2. The crash-proof wheelchair as claimed in claim 1, wherein a pair of said second barriers (110) is provided in such a manner that said third section (111) is close to the waist of the user and said fourth section (112) is close to the shoulder of the user in a state that said user sits on said wheelchair.

3. The crash-resistant wheelchair as claimed in claim 2, wherein a pair of said first baffles (210) are arranged in such a way that said first section (211) is close to the user's legs and the second section (212) is close to the user's buttocks, with the user sitting on the wheelchair and with the back against the back of the chair.

4. The crash-resistant wheelchair as claimed in claim 3, characterized in that the backrest (100) is provided with a first fixing element (120), the first fixing element (120) being arranged on the side of the backrest (100) remote from the patient in such a way as to limit the position of the backrest (100) and of the second baffle (110) in use;

the seat cushion (200) is provided with a second fixing member (220), and the second fixing member (220) is arranged on one side of the seat cushion (200) close to the ground in a mode that the positions of the seat cushion (200) and the first baffle (210) can be limited during use.

5. The crash-resistant wheelchair as claimed in claim 4, wherein the side of the first baffle (210) facing the user is provided with a first arc having a first arc;

the side of the second barrier (110) facing the user is provided with a second arc shape having a second arc shape in a manner that the user can conveniently sit, wherein,

the first arc is greater than the second arc to accommodate the configuration of the legs and waist of the human body.

6. The crash-proof wheelchair as claimed in claim 5, characterized in that the first fixing part (120) comprises a first region which is in interference connection with the side of the backrest (100) facing away from the user and a second region which is in interference connection with the side of the second baffle plate (110) facing away from the user and which is on the side facing towards the backrest (100),

the second region has a shape conforming to the shape of the second flap (110), and the edge of the second flap (110) is higher than the edge of the second region when the first fixing member (120) is attached to the seatback (100).

7. The crash-proof wheelchair as claimed in claim 6, wherein the second securing means (220) comprises a third region which is in interference connection with the side of the seat cushion (200) remote from the occupant towards the side of the seat cushion (200) and a fourth region which is in interference connection with the side of the first baffle (210) remote from the occupant towards the side of the seat cushion (200), wherein,

the fourth region has a shape conforming to the shape of the first flap (210), and the edge of the first flap (210) is higher than the edge of the fourth region when the second fixing member (220) is attached to the seat cushion (200).

8. The crash-resistant wheelchair as claimed in claim 7, wherein two second baffles (110) disposed on both sides of the backrest (100) are disposed opposite to each other at a first angle.

9. The crash-resistant wheelchair as claimed in claim 8, wherein the two first baffles (210) arranged on either side of the seat cushion (200) are arranged at a second angle to each other.

10. The crash-resistant wheelchair as claimed in claim 9, wherein the side of the third section (111) of the second baffle (110) which contacts the user is arranged in an ergonomically designed arc in such a way that it can be placed against the waist of the user.