CN108926437B - Wheelchair with speed reduction function - Google Patents

Wheelchair with speed reduction function Download PDF

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Publication number
CN108926437B
CN108926437B CN201810766739.1A CN201810766739A CN108926437B CN 108926437 B CN108926437 B CN 108926437B CN 201810766739 A CN201810766739 A CN 201810766739A CN 108926437 B CN108926437 B CN 108926437B
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CN
China
Prior art keywords
groove
block
wheelchair
backrest
spring
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Active
Application number
CN201810766739.1A
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Chinese (zh)
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CN108926437A (en
Inventor
高海波
李静
陈科
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Gao Haibo
Li jing
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Individual
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Priority to CN201810766739.1A priority Critical patent/CN108926437B/en
Publication of CN108926437A publication Critical patent/CN108926437A/en
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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
    • 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
    • A61G5/1005—Wheelchairs having brakes
    • A61G5/1021—Wheelchairs having brakes engaging specific brake elements
    • 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
    • A61G5/1005—Wheelchairs having brakes
    • A61G5/1021—Wheelchairs having brakes engaging specific brake elements
    • A61G5/1024—Brake discs
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion

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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)
  • Handcart (AREA)
  • Rehabilitation Tools (AREA)

Abstract

The invention relates to a wheelchair with a speed reducing function, which comprises a bracket, a rotating shaft, a seat, a backrest, an adjusting mechanism, two armrests, two auxiliary wheels and two supporting wheels, wherein both ends of the rotating shaft are provided with speed limiting mechanisms, the adjusting mechanism comprises a supporting unit and two fixing units, the fixing units comprise a pushing component, a telescopic component and two fixing ropes, the supporting unit comprises a handle, a connecting rod, a fixing shaft, a gear, a rack and a moving block, the speed limiting mechanism comprises a speed limiting disc, a rotating chamber, a friction plate and a plurality of ejecting units, the ejecting units comprise ejecting grooves, second springs and friction blocks, the wheelchair with the speed reducing function can adjust the angle of the backrest according to requirements through the adjusting mechanism, improve the comfort when people use the wheelchair, and limit the moving speed through the speed limiting mechanism when the wheelchair is in a downhill, the wheelchair is prevented from colliding with other objects or toppling over, and the user is prevented from being injured.

Description

Wheelchair with speed reduction function
Technical Field
The invention relates to the field of medical equipment, in particular to a wheelchair with a speed reduction function.
Background
The medical apparatus refers to instruments, equipment, appliances, in-vitro diagnostic reagents and calibrators, materials and other similar or related objects which are directly or indirectly used for the human body, and the wheelchair is an important tool for rehabilitation, not only is a walking tool for physically disabled people and people with mobility disabilities, but also is more important for patients to perform physical exercises and participate in social activities by means of the wheelchair.
Current wheelchair does not generally have speed limiting device, causes current wheelchair speed too fast when the downhill path, leads to current wheelchair striking other objects or topples over for the user is injured, and moreover, the angle of back can not be adjusted to current wheelchair, and the comfort reduces when leading to the patient to use current wheelchair.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, a wheelchair with a speed reducing function is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a wheelchair with a speed reduction function comprises a support, a rotating shaft, a seat, a backrest, an adjusting mechanism, two armrests, two auxiliary wheels and two supporting wheels, wherein the rotating shaft penetrates through the support, the rotating shaft is horizontally arranged, the two supporting wheels are respectively arranged at two ends of the rotating shaft, the supporting wheels and the rotating shaft are coaxially arranged, the two auxiliary wheels are respectively arranged at two sides of the support, the seat is fixed above the support, the backrest is horizontally arranged above the seat, the backrest is vertically arranged, the bottom end of the backrest is hinged to the seat, the two armrests are respectively fixed above the seat, the armrests are horizontally arranged, and two ends of the rotating shaft are respectively provided with a speed limiting mechanism;
the adjusting mechanism comprises a supporting unit and two fixing units, the fixing units correspond to the armrests one by one, the fixing units are arranged between the armrests and the backrest, and the supporting unit is arranged below the backrest;
the fixed unit comprises a pushing assembly, a telescopic assembly and two fixed ropes, the pushing assembly is arranged on the handrail, the telescopic assembly is arranged on one side of the handrail close to the backrest, and the pushing assembly is connected with the telescopic assembly through the two fixed ropes;
the pushing assembly comprises a pushing block, a limiting groove and a first pulley, the pushing block is arranged above the handrail, the limiting groove is arranged in the handrail, the limiting block is arranged in the limiting groove, the first pulley is arranged on one side, close to the backrest, of the limiting groove, and the two fixing ropes are wound around the first pulley;
the telescopic assembly comprises a positioning block, a positioning groove and two extending assemblies, the positioning block is fixed on one side, close to the backrest, of the armrest, the positioning groove is formed in the backrest and matched with the positioning block, the two extending assemblies are respectively arranged above and below the positioning block, and the extending assemblies correspond to the fixing ropes one by one;
the extension assembly comprises a second pulley, a telescopic groove, a first spring, an elastic block and a clamping groove, the clamping groove is arranged in the backrest, the telescopic groove is arranged in the positioning block, the first spring is arranged in the telescopic groove, the fixed rope winds around the second pulley, one end of the first spring is fixedly connected with the inner wall of the bottom of the telescopic groove, the second pulley is positioned at the lower side of the bottom of the telescopic groove, the other end of the first spring is fixedly connected with the elastic block, the first spring is in a compressed state, one end of the elastic block is arranged in the clamping groove, the other end of the elastic block is arranged in the telescopic groove, and the fixed rope is fixedly connected with the elastic block;
the supporting unit comprises a handle, a connecting rod, a fixed shaft, a gear, a rack and a moving block, the rack is arranged at the bottom in the seat, the rack is horizontally arranged, the gear is arranged above the rack, the gear is meshed with the rack, the fixed shaft penetrates through the gear, the fixed shaft is horizontally arranged, the fixed shaft is in interference fit with the gear, the fixed shaft and the gear are coaxially arranged, the connecting rod is horizontally arranged, one end of the connecting rod is fixedly connected with the fixed shaft, the other end of the connecting rod is fixedly connected with the handle, the moving block is vertically arranged, and the moving block is fixedly connected with the rack;
the speed limiting mechanism comprises a speed limiting disc, a rotating chamber, a friction plate and a plurality of popping units, wherein the rotating chamber is arranged in the support, the speed limiting disc is arranged in the rotating chamber, the speed limiting disc is sleeved on the rotating shaft and is in interference fit with the rotating shaft, the speed limiting disc and the rotating shaft are coaxially arranged, the friction plate is arranged on the inner wall of the rotating chamber, and the popping units are uniformly distributed on the speed limiting disc in the circumferential direction;
the popping unit comprises a popping groove, a second spring and a friction block, the popping groove is formed in the speed limiting disc, the second spring is arranged in the popping groove, one end of the second spring is fixedly connected with the inner wall of the popping groove, the other end of the second spring is fixedly connected with the friction block, the second spring is in a stretching state, one end of the friction block is arranged in the popping groove, and the other end of the friction block is arranged in the rotating chamber.
Preferably, a headrest is arranged above the backrest so as to facilitate the head of a user to relax.
Preferably, in order to facilitate people to hold the handle, the handle is provided with a rubber anti-slip sleeve.
Preferably, in order to reduce transmission loss between the gear and the rack, the gear and the rack are coated with lubricating oil.
As preferred, for the convenience of bullet piece entering draw-in groove, the locating piece of being convenient for gets into the constant head tank, all be equipped with the chamfer on bullet piece and the locating piece.
Preferably, the fixing rope is a nylon rope in order to enable the fixing rope to stably operate for a long time.
Preferably, in order to prevent the limiting block from being separated from the limiting groove, the limiting groove is a dovetail groove.
Preferably, the backrest and the seat are provided with cushions for improving comfort of the backrest and the seat.
Preferably, in order to facilitate the hand relaxation, the handrail is provided with a wood board.
Preferably, in order to facilitate people to place both feet, a step is provided below the armrest.
The wheelchair with the speed reducing function has the advantages that through the adjusting mechanism, people can adjust the angle of the backrest according to requirements, the comfort of people when the wheelchair is used is improved, compared with the existing adjusting mechanism, the adjusting mechanism can be adjusted by a single user, other people are not needed to assist in adjustment, in addition, through the speed limiting mechanism, the wheelchair can limit the moving speed during downhill, the existing wheelchair is prevented from colliding with other objects or toppling over, the user is prevented from being injured, and compared with the existing speed limiting mechanism, the speed limiting effect of the speed limiting mechanism is better.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the wheelchair with a deceleration function of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural view of a support unit of the wheelchair having a deceleration function of the present invention;
FIG. 4 is a schematic structural view of a speed limiting mechanism of the wheelchair having a deceleration function of the present invention;
in the figure: 1. the automobile seat comprises a support, 2, auxiliary wheels, 3, supporting wheels, 4, a rotating shaft, 5, a seat, 6, an armrest, 7, a backrest, 8, a push block, 9, a limiting block, 10, a limiting groove, 11, a fixing rope, 12, a first pulley, 13, a second pulley, 14, a telescopic groove, 15, a first spring, 16, an elastic block, 17, a clamping groove, 18, a positioning block, 19, a positioning groove, 20, a handle, 21, a connecting rod, 22, a fixing shaft, 23, a gear, 24, a rack, 25, a moving block, 26, a speed limiting disc, 27, an ejection groove, 28, a second spring, 29, a friction block, 30, a rotating chamber, 31, a friction plate and 32 a headrest.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, a wheelchair with a speed reduction function comprises a support 1, a rotating shaft 4, a seat 5, a backrest 7, an adjusting mechanism, two armrests 6, two auxiliary wheels 2 and two supporting wheels 3, wherein the rotating shaft 4 penetrates through the support 1, the rotating shaft 4 is horizontally arranged, the two supporting wheels 3 are respectively arranged at two ends of the rotating shaft 4, the supporting wheels 3 and the rotating shaft 4 are coaxially arranged, the two auxiliary wheels 2 are respectively arranged at two sides of the support 1, the seat 5 is fixed above the support 1, the seat 5 is horizontally arranged, the backrest 7 is arranged above the seat 5, the backrest 7 is vertically arranged, the bottom end of the backrest 7 is hinged to the seat 5, the two armrests 6 are respectively fixed above the seat 5, the armrests 6 are horizontally arranged, and two ends of the rotating shaft 4 are respectively provided with a speed limiting mechanism;
the adjusting mechanism comprises a supporting unit and two fixing units, the fixing units correspond to the armrests 6 one by one, the fixing units are arranged between the armrests 6 and the backrest 7, and the supporting unit is arranged below the backrest 7;
as shown in fig. 2, the fixing unit includes a pushing assembly, a telescopic assembly and two fixing ropes 11, the pushing assembly is disposed on the armrest 6, the telescopic assembly is disposed on one side of the armrest 6 close to the backrest 7, and the pushing assembly is connected to the telescopic assembly through the two fixing ropes 11;
the pushing assembly comprises a pushing block 8, a limiting block 9, a limiting groove 10 and a first pulley 12, the pushing block 8 is arranged above the handrail 6, the limiting groove 10 is arranged in the handrail 6, the limiting block 9 is arranged in the limiting groove 10, the first pulley 12 is arranged on one side, close to the backrest 7, of the limiting groove 10, and two fixing ropes 11 are wound around the first pulley 12;
the telescopic assembly comprises a positioning block 18, a positioning groove 19 and two extending assemblies, the positioning block 18 is fixed on one side, close to the backrest 7, of the armrest 6, the positioning groove 19 is arranged in the backrest 7, the positioning groove 19 is matched with the positioning block 18, the two extending assemblies are respectively arranged above and below the positioning block 18, and the extending assemblies correspond to the fixing ropes 11 one by one;
the extension assembly comprises a second pulley 13, a telescopic groove 14, a first spring 15, an elastic block 16 and a clamping groove 17, the clamping groove 17 is arranged in the backrest 7, the telescopic groove 14 is arranged in the positioning block 18, the first spring 15 is arranged in the telescopic groove 14, the fixed rope 11 bypasses the second pulley 13, one end of the first spring 15 is fixedly connected with the inner wall of the bottom of the telescopic groove 14, the second pulley 13 is positioned at the lower side of the bottom of the telescopic groove 14, the other end of the first spring 15 is fixedly connected with the elastic block 16, the first spring 15 is in a compressed state, one end of the elastic block 16 is arranged in the clamping groove 17, the other end of the elastic block 16 is arranged in the telescopic groove 14, and the fixed rope 11 is fixedly connected with the elastic block 16;
as shown in fig. 3, the supporting unit includes a handle 20, a connecting rod 21, a fixed shaft 22, a gear 23, a rack 24 and a moving block 25, the rack 24 is disposed at the bottom of the seat 5, the rack 24 is horizontally disposed, the gear 23 is disposed above the rack 24, the gear 23 is engaged with the rack 24, the fixed shaft 22 passes through the gear 23, the fixed shaft 22 is horizontally disposed, the fixed shaft 22 is in interference fit with the gear 23, the fixed shaft 22 is coaxially disposed with the gear 23, the connecting rod 21 is horizontally disposed, one end of the connecting rod 21 is fixedly connected with the fixed shaft 22, the other end of the connecting rod 21 is fixedly connected with the handle 20, the moving block 25 is vertically disposed, and the moving block 25 is fixedly connected with the rack 24;
when the angle of the backrest 7 needs to be adjusted, firstly, people control the two fixing units to work, the pushing assembly works, people push the push block 8, the limiting block 9 slides in the limiting groove 10, the fixing rope 11 is tightened, the telescopic assembly works through the first pulley 12, the fixing rope 11 pulls the elastic block 16 back to the telescopic groove 14 through the second pulley 13, then the back of people exerts force, the positioning block 18 is separated from the positioning groove 19, the backrest 7 is separated from the armrest 6, then the supporting unit works, people hold the handle 20, the fixing shaft 22 rotates through the connecting rod 21, the gear 23 is driven to rotate, the rack 24 is pushed out of the seat 6, the position of the moving block 25 is adjusted, and the angle of the backrest 7 is adjusted.
Through adjustment mechanism, people can adjust the angle of back 7 according to the demand, comfort when improving people and using this wheelchair compares with current adjustment mechanism, and this adjustment mechanism can be adjusted by the single completion of user, need not other people and assists the regulation.
As shown in fig. 4, the speed limiting mechanism includes a speed limiting disc 26, a rotating chamber 30, a friction plate 31 and a plurality of ejecting units, wherein the rotating chamber 30 is arranged in the bracket 1, the speed limiting disc 26 is arranged in the rotating chamber 30, the speed limiting disc 26 is sleeved on the rotating shaft 4, the speed limiting disc 26 is in interference fit with the rotating shaft 4, the speed limiting disc 26 and the rotating shaft 4 are coaxially arranged, the friction plate 31 is arranged on the inner wall of the rotating chamber 30, and the ejecting units are uniformly distributed on the speed limiting disc 26 in the circumferential direction;
the ejecting unit comprises an ejecting groove 27, a second spring 28 and a friction block 29, the ejecting groove 27 is arranged on the speed limiting disc 26, the second spring 28 is arranged in the ejecting groove 27, one end of the second spring 28 is fixedly connected with the inner wall of the ejecting groove 27, the other end of the second spring 28 is fixedly connected with the friction block 29, the second spring 28 is in a stretching state, one end of the friction block 29 is arranged in the ejecting groove 27, and the other end of the friction block 29 is arranged in the rotating chamber 30.
The rotating shaft 4 drives the speed limiting disc 26 to rotate in the rotating chamber 30, when the wheelchair moves at an excessively high speed, the rotating speeds of the rotating shaft 4 and the limiting disc 26 are excessively high, so that the plurality of ejecting units work, the friction block 29 leaves the ejecting groove 27 due to centrifugal force and abuts against the friction plate 31, the limiting disc 26 and the rotating shaft 4 are decelerated through the friction force between the friction block 29 and the friction plate 31, so that the speed of the wheelchair is reduced, the higher the rotating speeds of the rotating shaft 4 and the limiting disc 26 are, the larger the centrifugal force applied to the friction block 29 is, the higher the pressure between the friction block 29 and the friction plate 31 is, the larger the friction force between the friction block 29 and the friction plate 31 is, and the faster the rotating shaft 4 and the limiting disc 26 are decelerated.
Through the speed limiting mechanism, when the wheelchair runs downhill, the wheelchair can limit the moving speed, prevent the wheelchair from impacting other objects or toppling over, and avoid users from being injured.
Preferably, a headrest 32 is arranged above the backrest 7 to facilitate the head relaxation.
Preferably, in order to facilitate the holding of the handle 20, the handle 20 is provided with a rubber anti-slip sleeve.
Preferably, in order to reduce transmission loss between the gear 23 and the rack 24, lubricating oil is coated between the gear 23 and the rack 24.
Preferably, in order to facilitate the insertion of the elastic block 16 into the slot 17 and the insertion of the positioning block 18 into the positioning slot 19, chamfers are provided on both the elastic block 16 and the positioning block 18.
Preferably, the fixing string 11 is a nylon string in order to allow the fixing string 11 to stably operate for a long time.
Preferably, in order to prevent the stopper 9 from being separated from the stopper groove 10, the stopper groove 10 is a dovetail groove.
Preferably, cushions are provided on both the backrest 7 and the seat 5 to improve comfort of the backrest 7 and the seat 5.
Preferably, in order to facilitate the hand relaxation, the handrail 6 is provided with a wood board.
Preferably, in order to facilitate people to place both feet, a step is provided below the armrest 6.
The wheelchair with the speed reducing function has the working principle that: when the angle of backrest 7 needs to be adjusted, firstly, people control the work of two fixing units, the pushing assembly works, so that the fixing rope 11 is tightened up, the first pulley 12 is used for operating the telescopic assembly, the positioning block 18 is separated from the positioning groove 19, so that the backrest 7 is separated from the handrail 6, then the supporting unit works, the angle of the backrest 7 is adjusted, in addition, when the moving speed of the wheelchair is too fast, the rotating speed of the rotating shaft 4 and the limiting disc 26 is too fast, so that a plurality of ejecting units work, and the speed of the wheelchair is reduced.
Compared with the prior art, this wheelchair with speed reduction function, through adjustment mechanism, people can adjust the angle of back 7 according to the demand, the comfort when improving people and using this wheelchair, compare with current adjustment mechanism, this adjustment mechanism can be accomplished the regulation by single one of user, need not other people and come supplementary regulation, moreover, through speed limiting mechanism, when the downhill path, this wheelchair can limit the translation rate, prevent that this wheelchair from striking other objects or toppling over now, avoid the user injury, compare with current speed limiting mechanism, the speed limit effect of this speed limiting mechanism is better.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The wheelchair with the speed reduction function is characterized by comprising a support (1), a rotating shaft (4), a seat (5), a backrest (7), an adjusting mechanism, two armrests (6), two auxiliary wheels (2) and two supporting wheels (3), wherein the rotating shaft (4) penetrates through the support (1), the rotating shaft (4) is horizontally arranged, the two supporting wheels (3) are respectively arranged at two ends of the rotating shaft (4), the supporting wheels (3) and the rotating shaft (4) are coaxially arranged, the two auxiliary wheels (2) are respectively arranged at two sides of the support (1), the seat (5) is fixed above the support (1), the seat (5) is horizontally arranged, the backrest (7) is arranged above the seat (5), the backrest (7) is vertically arranged, the bottom end of the backrest (7) is hinged to the seat (5), the two armrests (6) are respectively fixed above the seat (5), the handrail (6) is horizontally arranged, and both ends of the rotating shaft (4) are provided with speed limiting mechanisms;
the adjusting mechanism comprises a supporting unit and two fixing units, the fixing units correspond to the armrests (6) one by one, the fixing units are arranged between the armrests (6) and the backrest (7), and the supporting unit is arranged below the backrest (7);
the fixed unit comprises a pushing assembly, a telescopic assembly and two fixed ropes (11), the pushing assembly is arranged on the handrail (6), the telescopic assembly is arranged on one side, close to the backrest (7), of the handrail (6), and the pushing assembly is connected with the telescopic assembly through the two fixed ropes (11);
the pushing assembly comprises a pushing block (8), a limiting block (9), a limiting groove (10) and a first pulley (12), the pushing block (8) is arranged above the handrail (6), the limiting groove (10) is arranged in the handrail (6), the limiting block (9) is arranged in the limiting groove (10), the first pulley (12) is arranged on one side, close to the backrest (7), of the limiting groove (10), and the two fixing ropes (11) are wound around the first pulley (12);
the telescopic component comprises a positioning block (18), a positioning groove (19) and two extending components, the positioning block (18) is fixed on one side, close to the backrest (7), of the armrest (6), the positioning groove (19) is arranged in the backrest (7), the positioning groove (19) is matched with the positioning block (18), the two extending components are respectively arranged above and below the positioning block (18), and the extending components correspond to the fixing ropes (11) one to one;
the extension component comprises a second pulley (13), a telescopic groove (14), a first spring (15), an elastic block (16) and a clamping groove (17), the clamping groove (17) is arranged in the backrest (7), the telescopic groove (14) is arranged in the positioning block (18), the first spring (15) is arranged in the telescopic groove (14), the fixed rope (11) winds around the second pulley (13), one end of the first spring (15) is fixedly connected with the inner wall of the bottom of the telescopic groove (14), the second pulley (13) is positioned at the lower side of the bottom of the telescopic groove (14), the other end of the first spring (15) is fixedly connected with an elastic block (16), the first spring (15) is in a compressed state, one end of the elastic block (16) is arranged in the clamping groove (17), the other end of the elastic block (16) is arranged in the telescopic groove (14), and the fixed rope (11) is fixedly connected with the elastic block (16);
the supporting unit comprises a handle (20), a connecting rod (21), a fixed shaft (22), a gear (23), a rack (24) and a moving block (25), the rack (24) is arranged at the bottom in the seat (5), the rack (24) is horizontally arranged, the gear (23) is arranged above the rack (24), the gear (23) is meshed with the rack (24), the fixed shaft (22) penetrates through the gear (23), the fixed shaft (22) is horizontally arranged, the fixed shaft (22) is in interference fit with the gear (23), the fixed shaft (22) and the gear (23) are coaxially arranged, the connecting rod (21) is horizontally arranged, one end of the connecting rod (21) is fixedly connected with the fixed shaft (22), the other end of the connecting rod (21) is fixedly connected with the handle (20), the moving block (25) is vertically arranged, and the moving block (25) is fixedly connected with the rack (24);
the speed limiting mechanism comprises a speed limiting disc (26), a rotating chamber (30), a friction plate (31) and a plurality of ejecting units, wherein the rotating chamber (30) is arranged in the support (1), the speed limiting disc (26) is arranged in the rotating chamber (30), the speed limiting disc (26) is sleeved on the rotating shaft (4), the speed limiting disc (26) is in interference fit with the rotating shaft (4), the speed limiting disc (26) and the rotating shaft (4) are coaxially arranged, the friction plate (31) is arranged on the inner wall of the rotating chamber (30), and the ejecting units are uniformly distributed on the speed limiting disc (26) in the circumferential direction;
the pop-up unit comprises a pop-up groove (27), a second spring (28) and a friction block (29), the pop-up groove (27) is formed in the speed limiting disc (26), the second spring (28) is arranged in the pop-up groove (27), one end of the second spring (28) is fixedly connected with the inner wall of the pop-up groove (27), the other end of the second spring (28) is fixedly connected with the friction block (29), the second spring (28) is in a stretching state, one end of the friction block (29) is arranged in the pop-up groove (27), and the other end of the friction block (29) is arranged in the rotating chamber (30).
2. The wheelchair having a deceleration function as claimed in claim 1, wherein a headrest (32) is provided above the backrest (7).
3. The wheelchair with a decelerating function as claimed in claim 1, wherein the handle (20) is provided with a rubber anti-slip cover.
4. The wheelchair having a deceleration function as claimed in claim 1, wherein lubricating oil is applied between the gear (23) and the rack (24).
5. The wheelchair with a deceleration function as claimed in claim 1, wherein the spring block (16) and the positioning block (18) are provided with chamfers.
6. The wheelchair having a deceleration function as claimed in claim 1, wherein the fixing rope (11) is a nylon rope.
7. The wheelchair having a deceleration function as claimed in claim 1, wherein the restraint groove (10) is a dovetail groove.
8. The wheelchair as claimed in claim 1, wherein cushions are provided on the backrest (7) and the seat (5).
9. The wheelchair having a deceleration function as claimed in claim 1, wherein the armrest (6) is provided with a wooden plate.
10. The wheelchair having a deceleration function as claimed in claim 1, wherein a step is provided under the armrest (6).
CN201810766739.1A 2018-07-13 2018-07-13 Wheelchair with speed reduction function Active CN108926437B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810766739.1A CN108926437B (en) 2018-07-13 2018-07-13 Wheelchair with speed reduction function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810766739.1A CN108926437B (en) 2018-07-13 2018-07-13 Wheelchair with speed reduction function

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Publication Number Publication Date
CN108926437A CN108926437A (en) 2018-12-04
CN108926437B true CN108926437B (en) 2020-05-08

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Publication number Priority date Publication date Assignee Title
CN110685101A (en) * 2019-10-23 2020-01-14 台州精微顺自动化有限公司 Singeing mechanism for fabric grey cloth
CN110584892A (en) * 2019-10-24 2019-12-20 长沙宁湖机械设备有限公司 Flat wheelchair of lying
CN112555734A (en) * 2020-12-09 2021-03-26 徐永金 Solar energy and wind energy LED street lamp
CN113456366B (en) * 2021-06-22 2023-12-29 椅夫健康(厦门)智能科技有限公司 Electric wheelchair with dual-function rotary telescopic synchronous backrest cushion and working method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2104780U (en) * 1991-01-25 1992-05-20 杨俊普 Multifunctional deformable combined chair
CN2168576Y (en) * 1993-05-29 1994-06-15 王洪宾 Multifunctional wheeled chair for rehabitilation of hemiparalysis
CN2675170Y (en) * 2004-01-08 2005-02-02 宝鸡秦新电气有限公司 Centrifugal type overrunning governor and dually controllable multiplexing steady stopping device
DE202007018454U1 (en) * 2007-09-18 2008-07-31 Otto Bock Healthcare Ip Gmbh & Co. Kg Raising wheelchair with anatomical back compensation
CN201147046Y (en) * 2008-01-31 2008-11-12 马跃凌 Chaise longue capable of randomly regulating angle
CN201167701Y (en) * 2008-03-25 2008-12-24 彭乾丰 Seat with adjustable angle of chair back
JP5769258B2 (en) * 2012-04-11 2015-08-26 宏和 山橋 Carriage and wheelchair that can move up and down stairs while holding the loading platform and seating surface horizontally
CN203564438U (en) * 2013-11-21 2014-04-30 张沛森 Seat backrest angle adjusting device
CN103950388A (en) * 2014-04-24 2014-07-30 湖南工业大学 Speed limiting device of household electric bicycle
CN206730059U (en) * 2017-01-13 2017-12-12 吕春红 A kind of internal medicine nursing toilet seat two-use wheel chair

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