CN111388217B - Medical wheelchair with rollover prevention function - Google Patents

Medical wheelchair with rollover prevention function Download PDF

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Publication number
CN111388217B
CN111388217B CN202010330297.3A CN202010330297A CN111388217B CN 111388217 B CN111388217 B CN 111388217B CN 202010330297 A CN202010330297 A CN 202010330297A CN 111388217 B CN111388217 B CN 111388217B
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plate
device assembly
wheelchair
rod
shaped
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CN111388217A (en
Inventor
王莉莉
廖妍妍
解丽娟
潘俊
杜艳鸣
伍焱
姬秋晨
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Jiangsu Province Hospital
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Jiangsu Province Hospital
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1089—Anti-tip devices

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Handcart (AREA)

Abstract

The invention relates to a medical wheelchair with a rollover prevention function, which comprises a trigger device assembly, a supporting device assembly and a fixing device assembly. The trigger device assembly comprises a bottom support plate and a T-shaped frame, the support device assembly comprises a floor support rod, an L-shaped rod and a support rod, the fixing device assembly comprises a clamping plate, when the wheelchair is inclined, a bottom support block on the bottom support plate contacts the ground, the T-shaped frame is pushed to be separated from the support device assembly, the torsion spring pressure is released, the support rod is sprung down, and the floor support rod is driven to fall to the floor, so that the wheelchair is prevented from continuing to incline. The invention has the advantages of convenient installation, high safety and convenient popularization.

Description

Medical wheelchair with rollover prevention function
Technical Field
The invention relates to an anti-roll device, in particular to a medical wheelchair with an anti-roll function.
Background
The wheelchair is used as a walking aid for disabled persons and persons with mobility impairment, is an auxiliary tool for facilitating the movement of family members and caring patients, loses the center of gravity when the wheelchair is slightly impacted and operated improperly in the use or movement process of the person, and is easy to turn over and hurt the user.
Disclosure of Invention
The invention aims to solve the existing problems and provide the medical wheelchair with the rollover prevention function, and the rollover prevention device is additionally arranged to effectively prevent the wheelchair from rolling and avoid injury caused by rollover of a user.
In order to solve the technical problems, the technical scheme of the invention is realized by the following steps that the medical wheelchair with the rollover prevention function comprises a trigger device assembly, a supporting device assembly and a fixing device assembly;
The triggering device assembly comprises a bottom supporting plate and a T-shaped frame, a bottom supporting block vertical to the bottom supporting plate is arranged at the lower end of the bottom supporting plate, the outer side of the bottom supporting plate is connected with a pin shaft at the lower end of the T-shaped frame, and an anti-rotation block which is vertical to the bottom supporting plate and upward and used for preventing the bottom supporting plate from rotating towards the ground due to the action of gravity is arranged at the side of the bottom supporting plate, close to the wheelchair;
The support device assembly comprises a floor support rod, a symmetrical L-shaped rod, a symmetrical support rod and a symmetrical rotary pipe. The opening of the L-shaped rod is inward, the upper end of the L-shaped rod is connected with the floor support rod, and the lower end of the L-shaped rod is connected with the support rod. The lower end of the supporting rod is connected with the outer sides of the rotating pipes and is vertical to the rotating pipes, and ratchet wheels are arranged on the inner sides of the 2 rotating pipes;
the fixing device assembly comprises a fixing plate and a clamping plate. The upper end of the fixing plate is provided with a round hole, and the fixing plate is fixed on the side surface of the wheelchair after being sleeved on the middle shaft of the rim and fastened by a screw cap. The upper end of the middle part of the fixing plate is provided with a U-shaped limiting ring, the T-shaped frame penetrates through the U-shaped limiting ring and is in limiting connection with the U-shaped limiting ring, and the T-shaped frame can freely slide in the vertical direction in the U-shaped limiting ring. The two side edges of the lower end of the middle part of the fixed plate are respectively provided with an outwardly protruding triangular bracket, the triangular brackets are connected with a pin shaft of the clamping plate, the second spring is compressed between the clamping plate and the fixed plate, the clamping plate is in an inverted T shape, and two sides of the lower end of the clamping plate are respectively provided with a stop claw matched with the ratchet wheel;
The two side edges of the lower end of the fixed plate are respectively provided with a shaft, the rotating pipe on the supporting device assembly is sleeved on the shafts, and the supporting device assembly is rotationally connected with the fixed plate. The top end of the outer side of the shaft is downwards provided with a rotation stopping column, the circumference direction of the outer side of the shaft is sleeved with a torsion spring, two ends of the torsion spring are respectively applied to the supporting rod and the rotation stopping column, and the torsion spring is preset with a pre-tightening torsion force for forcing the supporting device assembly to rotate towards the outer side of the wheelchair.
When the wheelchair is inclined, the bottom support block contacts the ground, pressure is generated to push the T-shaped frame to move upwards to separate from the L-shaped rod, the support rod is sprung away by the release of the torsion spring pressure in the original compression state, the floor support rod is driven to fall to the ground, the wheelchair is prevented from continuing to incline, and the wheelchair is effectively prevented from being damaged by side-turning.
The invention is further defined as the technical scheme that the main structures of the triggering device assembly, the supporting device assembly and the fixing device assembly are all made of stainless steel materials through welding, and the triggering device assembly, the supporting device assembly and the fixing device assembly are wear-resistant, corrosion-resistant and rust-resistant.
Drawings
Fig. 1 and 2 are schematic structural views of the present invention.
Fig. 3 is a schematic view of the back structure of the present invention.
Fig. 4 is a schematic view of the structure of the invention when it is unfolded.
Fig. 5 is a schematic structural view of the supporting device assembly.
FIG. 6 is a schematic structural view of the fixture assembly.
Fig. 7 is a schematic structural view of the detent plate.
Fig. 8 is a schematic structural view of the bottom plate.
The trigger device comprises a trigger device assembly, a supporting device assembly, a fixing device assembly, a base support block, a base support plate, a T-shaped frame, an anti-rotation block, a floor support rod, a 202, an L-shaped rod, a 203, a support rod, a 204, a rotation tube, a 205, a ratchet wheel, a 206, a torsion spring, a 301, a fixing plate, a 302, a U-shaped limiting ring, a 303, a shaft, a 304, a clamping plate, a 305, a second spring, 30101, a round hole, 30102, a nut, 30103, a triangular bracket, 30301, a rotation stopping column, 30401 and a locking claw.
Detailed Description
The present invention is described in further detail below:
Example 1
The embodiment provides a medical wheelchair with a rollover prevention function, which is characterized by comprising a trigger device assembly 1, a supporting device assembly 2 and a fixing device assembly 3.
The trigger device assembly 1 comprises a bottom support plate 102 and a T-shaped frame 103, wherein a bottom support block 101 perpendicular to the bottom support plate 102 is arranged at the lower end of the bottom support plate 102, the outer side of the bottom support plate 102 is connected with the lower end of the T-shaped frame 103 through a pin shaft, and an anti-rotation block 104 perpendicular to the bottom support plate 102 and upwards used for preventing the bottom support plate 102 from rotating towards the ground due to the action of gravity is arranged on the side, close to a wheelchair, of the bottom support plate 102.
The support assembly 2 includes a floor stand support bar 201, a pair of symmetrical L-shaped bars 202, a pair of symmetrical support bars 203, and a pair of symmetrical swivel tubes 204. The L-shaped rod 202 is opened inward, the upper end of the L-shaped rod 202 is connected with the floor support rod 201, and the lower end of the L-shaped rod 202 is connected with the support rod 203. The lower end of the supporting rod 203 is connected with the outer sides of the rotating pipes 204 and is vertical to the outer sides of the rotating pipes 204, and ratchet wheels 205 are arranged on the inner sides of the 2 rotating pipes 204.
The fixture assembly 3 includes a fixing plate 301 and a detent plate 304. A round hole 30101 is arranged at the upper end of the fixing plate 301, and the fixing plate 301 is fixed on the side surface of the wheelchair after the round hole 30101 is sleeved on the central shaft of the rim and fastened by a screw cap 30102. A U-shaped limiting ring 302 is arranged at the upper end of the middle part of the fixing plate 301, the T-shaped frame 103 penetrates through the U-shaped limiting ring 302 and forms limiting connection with the U-shaped limiting ring, and the T-shaped frame 103 can freely slide in the U-shaped limiting ring 302 in the vertical direction. The two side edges of the middle lower end of the fixing plate 301 are respectively provided with an outwardly protruding triangular bracket 30103, the triangular brackets 30103 are in pin shaft connection with the clamping plates 304, the clamping plates 304 are in an inverted T shape, two sides of the lower end are respectively provided with a stop claw 30401 matched with the ratchet 205, and the second springs 305 are compressed between the clamping plates 304 and the fixing plate 301.
Shafts 303 are respectively arranged at the edges of the two sides of the lower end of the fixed plate 301, the rotating pipe 204 on the supporting device assembly 2 is sleeved on the shafts 303, and the supporting device assembly 2 is in rotating connection with the fixed plate 301. A rotation stopping column 30301 is downwardly arranged at the top end of the outer side of the shaft 303, a torsion spring 206 is sleeved on the outer side of the shaft 303 in the circumferential direction, two ends of the torsion spring 206 respectively apply force to the supporting rod 203 and the rotation stopping column 30301, and the torsion spring 206 is preset with a pre-tightening torsion force for forcing the supporting device assembly 2 to rotate towards the outer side of the wheelchair.
When the wheelchair is inclined, the bottom support block 101 contacts the ground, pressure is generated to push the T-shaped frame 103 to move upwards to separate from the supporting device assembly 2, the supporting rod 203 is sprung out by the pressure release of the torsion spring 206 in the original compression state, the floor support rod 201 is driven to fall to the ground, the wheelchair is prevented from continuing to incline, and the wheelchair is effectively prevented from being damaged by side turning.
The main structures of the trigger device assembly 1, the supporting device assembly 2 and the fixing device assembly 3 are all made of stainless steel materials through welding, and the trigger device is wear-resistant, corrosion-resistant and rust-resistant.
When the wheelchair is inclined, the bottom support block falls to the ground to push the T-shaped frame to move upwards to separate from the L-shaped rod, the torsion spring pressure is released to spring the support rod open, and the floor support rod is driven to fall to the ground to support, so that the wheelchair is prevented from continuing to incline. When the anti-roll device is retracted, the upper end of the clamping plate is pressed, and the floor support rod is retracted upwards to return to the original position.
The embodiment of the sample has the advantages of convenient installation, high safety and convenient popularization, and effectively prevents the wheelchair from being overturned easily due to losing the center of gravity, thereby avoiding injury to users.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereto, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the present invention.

Claims (2)

1.一种具有防侧翻功能的医用轮椅，其特征在于 ：包括触发装置总成（1）、支撑装置总成（2）、固定装置总成（3）；1. A medical wheelchair with an anti-rollover function, characterized by comprising a trigger device assembly (1), a support device assembly (2), and a fixing device assembly (3); 所述触发装置总成（1）包括底托板（102）、T型架（103），所述底托板（102）下端设有与所述底托板（102）垂直的底托块（101），所述底托板（102）外侧与所述T型架（103）下端销轴连接，在所述底托板（102）靠轮椅侧设有与之垂直且向上的用于阻止所述底托板（102）因受重力作用而向地面方向转动的防转动块（104）；The trigger device assembly (1) comprises a bottom support plate (102) and a T-shaped frame (103); a bottom support block (101) perpendicular to the bottom support plate (102) is provided at the lower end of the bottom support plate (102); the outer side of the bottom support plate (102) is connected to a pin shaft at the lower end of the T-shaped frame (103); and an anti-rotation block (104) perpendicular to and upward from the bottom support plate (102) is provided on the wheelchair side of the bottom support plate (102) for preventing the bottom support plate (102) from rotating toward the ground due to gravity; 所述支撑装置总成（2）包括落地支撑杆（201）、一对对称的L型杆（202）、一对对称的支撑杆（203）、一对对称的转动管（204）；所述L型杆（202）开口向内，所述L型杆（202）的上端与所述落地支撑杆（201）连接，所述L型杆（202）的下端与所述支撑杆（203）连接；所述支撑杆（203）下端与所述转动管（204）外侧连接且两者垂直，两个所述转动管（204）内侧均设有棘轮（205）；The support device assembly (2) comprises a ground support rod (201), a pair of symmetrical L-shaped rods (202), a pair of symmetrical support rods (203), and a pair of symmetrical rotating tubes (204); the L-shaped rod (202) opens inward, the upper end of the L-shaped rod (202) is connected to the ground support rod (201), and the lower end of the L-shaped rod (202) is connected to the support rod (203); the lower end of the support rod (203) is connected to the outer side of the rotating tube (204) and the two are perpendicular, and ratchet wheels (205) are provided on the inner sides of the two rotating tubes (204); 所述固定装置总成（3）包括固定板（301）、卡位板（304）；在所述固定板（301）上端设有圆孔（30101），所述固定板（301）通过将所述圆孔（30101）套设在轮圈中轴并用螺帽（30102）紧固后固定在轮椅侧面；在所述固定板（301）中部上端设有U型限位环（302），所述T型架（103）穿过所述U型限位环（302）并与之形成限位连接，且所述T型架（103）可在所述U型限位环（302）内做上下方向的自由滑动；所述固定板（301）中部下端两侧边缘处分别设有向外凸起的三角支架（30103），所述三角支架（30103）与所述卡位板（304）销轴连接，所述卡位板（304）呈倒T型且下端两侧分别设有与所述棘轮（205）相配合的止动爪（30401），第二弹簧（305）压缩于所述卡位板（304）与所述固定板（301）之间；The fixing device assembly (3) comprises a fixing plate (301) and a locking plate (304); a circular hole (30101) is provided at the upper end of the fixing plate (301); the fixing plate (301) is fixed to the side of the wheelchair by sleeve-fitting the circular hole (30101) on the central axis of the wheel rim and fastening it with a nut (30102); a U-shaped limiting ring (302) is provided at the upper middle end of the fixing plate (301); the T-shaped frame (103) passes through the U-shaped limiting ring (302) and forms a limiting connection therewith, and the T-shaped frame (103) 3) being able to freely slide in the up-and-down directions in the U-shaped limiting ring (302); triangular brackets (30103) protruding outwards are respectively provided at the edges of both sides of the lower end of the middle part of the fixing plate (301); the triangular brackets (30103) are pin-connected to the positioning plate (304); the positioning plate (304) is in an inverted T-shape and has stop claws (30401) matching with the ratchet (205) respectively provided on both sides of the lower end; and the second spring (305) is compressed between the positioning plate (304) and the fixing plate (301); 所述固定板（301）下端两侧边缘处分别设有轴（303），所述支撑装置总成（2）上的转动管（204）套设在所述轴（303）上且所述支撑装置总成（2）与所述固定板（301）形成转动连接；在所述轴（303）外侧顶端向下设有止转柱（30301），在所述轴（303）外侧圆周方向上套设有扭力弹簧（206），所述扭力弹簧（206）两端分别着力于所述支撑杆（203）与所述止转柱（30301）且所述扭力弹簧（206）预设有迫使所述支撑装置总成（2）向轮椅外侧转动的预紧扭力；Axles (303) are respectively provided at the edges of both sides of the lower end of the fixing plate (301); the rotating tube (204) on the supporting device assembly (2) is sleeved on the axle (303), and the supporting device assembly (2) and the fixing plate (301) are rotatably connected; a stop column (30301) is downwardly provided at the top end of the outer side of the axle (303); a torsion spring (206) is sleeved in the circumferential direction of the outer side of the axle (303); the two ends of the torsion spring (206) respectively exert force on the supporting rod (203) and the stop column (30301); and the torsion spring (206) is preset with a pre-tightening torque for forcing the supporting device assembly (2) to rotate toward the outside of the wheelchair; 第二弹簧（305）套在卡位板（304）板面上外凸设置的定位凸轴上，第二弹簧（305）一端固定在卡位板（304）的板面上，另一端固定在固定板（301）的板面上；第二弹簧（305）正常状态下，推动卡位板（304）远离固定板（301），卡位板（304）的止动爪（30401）卡合棘轮（205），第二弹簧（305）受压时，卡位板（304）的止动爪（30401）脱离棘轮（205），向上拉动落地支撑杆（201）回原位。The second spring (305) is sleeved on a positioning convex shaft convexly arranged on the plate surface of the locking plate (304); one end of the second spring (305) is fixed on the plate surface of the locking plate (304), and the other end is fixed on the plate surface of the fixed plate (301); in a normal state, the second spring (305) pushes the locking plate (304) away from the fixed plate (301), and the locking claw (30401) of the locking plate (304) engages with the ratchet (205); when the second spring (305) is compressed, the locking claw (30401) of the locking plate (304) is disengaged from the ratchet (205), and the ground support rod (201) is pulled upward to return to its original position. 2.根据权利要求 1 所述的具有防侧翻功能的医用轮椅，其特征在于 ：所述触发装置总成（1）、所述支撑装置总成（2）与所述固定装置总成（3）主体结构均采用不锈钢材料焊接制成。2. The medical wheelchair with anti-rollover function according to claim 1 is characterized in that: the main structures of the trigger device assembly (1), the support device assembly (2) and the fixing device assembly (3) are all made of stainless steel by welding.
CN202010330297.3A 2020-04-24 2020-04-24 Medical wheelchair with rollover prevention function Active CN111388217B (en)

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