CN107837148B - Medical wheelchair - Google Patents
Medical wheelchair Download PDFInfo
- Publication number
- CN107837148B CN107837148B CN201710449419.9A CN201710449419A CN107837148B CN 107837148 B CN107837148 B CN 107837148B CN 201710449419 A CN201710449419 A CN 201710449419A CN 107837148 B CN107837148 B CN 107837148B
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- Prior art keywords
- locking
- frame column
- rotary
- spiral
- rod
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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
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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
- 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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- 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
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/122—Rests specially adapted therefor, e.g. for the head or the feet for the back
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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
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
-
- 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
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
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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
- A61G2203/00—General characteristics of devices
- A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
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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)
- Toys (AREA)
Abstract
the invention discloses a medical wheelchair, which comprises a main body, a pedal seat, a first frame column and a second frame column, wherein the first frame column and the second frame column are respectively arranged on the left side and the right side of the top surface of the pedal seat; the pedal angle adjusting device is simple in structure and convenient to operate, can realize automatic switching locking and pedal angle adjusting work, can meet the requirement that pedals with different sizes perform pedal angle adjusting work, and saves cost.
Description
Technical Field
The invention relates to the field of medical chairs, in particular to a medical wheelchair.
Background
The wheel chair belongs to one kind of medical wheel chair and is one walking tool for the disabled. The pedals of the traditional wheelchair are parallel to the bottom surface and can not be adjusted, the feet of a patient are not comfortable when the patient vertically and horizontally puts down, the blood circulation of the concerned impact part of the rider is affected, and particularly when the chair back needs to be adjusted backwards, the requirements of wheelchair users are not met.
Disclosure of Invention
The present invention has been made to solve the above-described problems occurring in the prior art, and an object of the present invention is to provide a medical wheelchair.
The invention is realized by the following technical scheme: the invention relates to a medical wheelchair, which comprises a main body, a pedal seat, a first frame column and a second frame column, wherein the first frame column and the second frame column are respectively arranged on the left side and the right side of the top surface of the pedal seat, the main body comprises an angle-adjustable chair back and a cushion, the cushion is fixedly arranged at the top end of a wheelchair frame, rollers are respectively arranged on four feet of the wheelchair frame, the front end of the wheelchair frame is provided with the pedal seat, a conversion cavity is arranged in the first frame column, a locking cavity is arranged in the first frame column on the right side of the conversion cavity, a partition plate is arranged between the conversion cavity and the locking cavity, a spiral tube which is arranged in a stretching way towards the left side is connected in a circling fit manner in the partition plate, a locking device is fixedly arranged in the left side of the locking cavity, an internal thread locking sleeve is connected in a sliding fit manner in the locking device, an internal thread of the internal thread locking sleeve is connected in a thread fit manner, the guiding block fixedly connected with the spiral-type threaded rotary cylinder is connected in a sliding fit mode in the guiding groove, the left side extension section of the rotary cylinder stretches into the conversion cavity, a first tapered wheel is fixedly arranged on the outer side of a tail tip, the right side tail tip of the rotary cylinder is fixedly connected with the left side of the spiral-type threaded rotary cylinder, a locking disc is arranged in the locking cavity on the right side of the locking device, a first rotary rod stretching towards the left side and the right side is matched in the rotary cylinder, the left side extension tail tip of the first rotary rod stretches into the conversion cavity and is connected with the left side inner side face of the conversion cavity in a rotating fit mode, the right side extension section of the first rotary rod penetrates through the spiral-type threaded rotary cylinder and then is fixedly connected with the left side of the locking disc, a second rotary rod stretching towards the right side is arranged on the right side face of the locking disc, the right side extension section of the second rotary rod penetrates through the right side face of the first frame column and is connected in a rotating fit mode, a first sliding, the angle adjusting device comprises a first sliding groove, a second sliding groove and a first support column, wherein angle adjusting spiral rods extending left and right are arranged in the first sliding groove, angle adjusting sliding blocks are connected to the angle adjusting spiral rods in a spiral thread matching mode, guide arms extending into a conversion cavity are arranged on the left and right sides of the front side face of each angle adjusting sliding block in an equivalent mode, clamping shafts extending towards the left and right sides are connected to the inner portions of the guide arms in a matching mode, double-side conical wheels are connected to the clamping shafts between the two groups of guide arms in a sliding mode, second conical wheels are fixedly arranged on the outer surfaces of the first rotary rods on the left sides of the first conical wheels, and an air opening device is arranged in the first support column.
According to a preferable technical scheme, the bottom surface of the first frame column is fixedly connected with the bottom surface of the pedal seat, a second sliding groove which is formed by extending left and right is formed in the right side surface of the pedal seat, a first spiral rod which is formed by extending left and right is arranged in the second sliding groove, the left end of the first spiral rod is connected with the inner side surface of the left side of the second sliding groove in a rotating fit mode, the right end of the first spiral rod is connected with a first power device in a fit mode, the outer surface of the first power device is arranged in the inner side surface of the right side of the second sliding groove and fixedly connected with the inner side surface of the right side of the second sliding groove, a first sliding block which is connected with the first spiral rod in a threaded fit mode is connected in the sliding fit mode in the second sliding groove, and the bottom surface of the second frame column is fixedly connected with the top surface of the first sliding block and matched with the top.
according to a preferable technical scheme, the right end of the first frame column and the left end of the second frame column are oppositely provided with rotary fasteners, a pedal is arranged between the two groups of rotary fasteners in a matched and connected mode, the right side of the second rotary rod extends to the outside of the right side of the first frame column, the tail tip of the second rotary rod is fixedly connected with the rotary fasteners at the right end of the first frame column, and the rotary fasteners at the right end of the second frame column are connected with the left side of the second frame column in a rotary and matched mode.
Preferably, the left end of the angle adjusting screw rod is connected with a second power device in a matched manner, the outer surface of the second power device is arranged in the inner side surface of the left side of the first slip conveying groove and is fixedly connected with the inner side surface of the right side of the first slip conveying groove, and the right end of the angle adjusting screw rod is connected with the inner side surface of the right side of the first slip conveying groove in a rotating and matched manner.
According to a preferable technical scheme, the left end of the clamping shaft is connected with a third power device in a matched mode, the outer surface of the third power device is arranged in the left side face of the conversion cavity and is fixedly connected with the left side face of the conversion cavity, and the right end of the clamping shaft is connected with the right side face of the conversion cavity in a rotating matched mode.
preferably, the double-sided cone pulley is located between the second cone pulley and the first cone pulley.
According to a preferable technical scheme, a composite pad is fixedly arranged on the right side face of the inner spiral locking sleeve, triggers are arranged on the left side face, opposite to the composite pad, of the locking disc in an up-down equal mode, and the triggers are electrically connected with the third power device.
According to a preferable technical scheme, clamping grooves are formed in the left end and the right end of the pedal plate, and clamping blocks which are used for being matched and connected with the clamping grooves in the left end and the right end of the pedal plate are arranged on the opposite sides of the rotary connecting piece at the right end of the first frame column and the left end of the second frame column respectively.
Preferably, the air opening device comprises a placing cavity arranged at the bottom in the first frame column, an air opening device is installed in the placing cavity, and a cover plate is arranged outside the air opening device in an openable manner.
The invention has the beneficial effects that:
1. A locking cavity is arranged in a first frame column on the right side of a conversion cavity, a partition plate is arranged between the conversion cavity and the locking cavity, a rotary cylinder which is arranged to extend towards the left side is connected in a circling fit mode in the partition plate, a locking device is fixedly arranged inside the left side of the locking cavity, an inner screw type locking sleeve is connected in a sliding fit mode in the locking device, a screw type screw cylinder is connected in the inner screw type locking sleeve in a screw type thread fit mode, guide grooves are formed in the inner side surfaces of the front side and the rear side of the locking device in the same direction, guide blocks which are fixedly connected with the screw type screw cylinder are connected in the sliding fit mode in the guide grooves, an extension section on the left side of the rotary cylinder stretches into the conversion cavity, a first conical wheel is fixedly arranged on the outer side of a tail tip, a tail tip on the right side of the rotary cylinder is fixedly connected with the left side of the screw type screw cylinder, a locking disc is arranged in the locking cavity on the right side of the locking device in a, the right side extension section of the first rotary rod penetrates through the spiral barrel and then is fixedly connected with the left end of the locking disc, the right side surface of the locking disc is provided with a second rotary rod which is arranged in an extending way towards the right side, the right side extension section of the second rotary rod penetrates through the right side surface of the first frame column and is connected in a rotating matching way, the rear side surface of the conversion cavity is provided with a first sliding groove, the first sliding groove is internally provided with angle-adjusting spiral rods which are arranged in an extending way from left to right, the spiral threads on the angle-adjusting spiral rods are connected with angle-adjusting sliding blocks in a matching way, the left side and the right side of the front side surface of each angle-adjusting sliding block are provided with guide arms which are extended into the conversion cavity in an equal way, the guide arms are internally connected with clamping shafts which are arranged in an extending way from left to right in a matching way, the clamping shafts between the two groups of guide arms are connected with bilateral conical wheels in a sliding matching way, the outer surface of the first rotary rod on the left, the equipment investment is reduced, the manufacturing cost is reduced, the working efficiency of the pedal plate angle modulation is improved, meanwhile, automatic locking is achieved, and the safety is improved.
2. Through first frame post bottom surface and pedal seat bottom surface fixed connection, the extension second slippage groove that sets up about establishing in the pedal seat right flank, the extension first screw rod that sets up about establishing in the second slippage groove, first screw rod left end and the cooperation of circling round of second slippage groove left side medial surface are connected, first screw rod right-hand member is connected with the cooperation of first power device, first power device surface sets up in the inboard surface of second slippage groove right side and fixed connection, the cooperation of the interior slip of second slippage groove is connected the first slippage piece of being connected with first screw rod screw thread cooperation, second frame post bottom surface and first slippage piece top surface fixed connection just with the top surface slip cooperation of pedal seat to the realization satisfies the running-board of not unidimensional and carries out the angle modulation work.
3. The composite pad is fixedly arranged on the right side face of the inner spiral locking sleeve, the trigger is arranged on the left side face of the locking disc opposite to the composite pad in an up-down equal mode, and the trigger is electrically connected with the third power device, so that automatic locking is achieved, and working efficiency is improved.
4. The automatic pedal angle adjusting device is simple in structure and convenient to operate, can realize automatic switching locking and pedal angle adjusting work, thereby improving the running stability of the automatic pedal angle adjusting, reducing equipment investment, reducing manufacturing cost, improving the working efficiency of the pedal angle adjusting, realizing automatic locking, meeting the requirement that pedals with different sizes perform pedal angle adjusting work, and saving cost.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the overall structure of a medical wheelchair according to the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of the internal structure of the first frame post of the present invention;
Fig. 5 is a schematic structural view of a medical wheelchair according to the present invention in a locked state.
Detailed Description
as shown in fig. 1 to 5, the medical wheelchair of the present invention comprises a main body 2, a pedal seat 3, and a first frame column 4 and a second frame column 5 respectively disposed on the left and right sides of the top surface of the pedal seat 3, wherein the main body 2 comprises an angle-adjustable seat back 21 and a seat cushion 23, the seat cushion 23 is fixedly disposed at the top end of a wheelchair frame 24, rollers 25 are respectively disposed on four legs of the wheelchair frame 24, the pedal seat 3 is disposed at the front end of the wheelchair frame 24, a conversion chamber 43 is disposed in the first frame column 4, a locking chamber 41 is disposed in the first frame column 4 on the right side of the conversion chamber 43, a partition plate 44 is disposed between the conversion chamber 43 and the locking chamber 41, a spiral tube 441 extending toward the left side is rotatably connected in the partition plate 44, a locking device 411 is fixedly disposed in the left side of the locking chamber 41, an internal screw type locking sleeve 413 is slidably connected in the locking device 411, a spiral cylinder 442 is connected to the inner thread of the inner thread locking sleeve 413 in a matching manner, the inner side surfaces of the front and rear sides of the locking device 411 are provided with guide grooves 412 in an equal manner, the guide grooves 412 are connected with guide blocks 415 fixedly connected with the spiral cylinder 442 in a sliding and matching manner, the left side extension section of the spiral cylinder 441 extends into the conversion cavity 43, the outer side of the tail tip is fixedly provided with a first tapered wheel 431, the right side tail tip of the spiral cylinder 441 is fixedly connected with the left side of the spiral cylinder 442, the locking cavity 41 at the right side of the locking device 411 is provided with a locking disc 42, the inner side of the spiral cylinder 441 is matched with a first spiral rod 433 which extends towards the left and right sides, the left side extension tail tip of the first spiral rod 433 extends into the conversion cavity 43 and is connected with the inner side surface at the left side of the conversion cavity 43 in a matching manner, the right side extension section of the first spiral rod 433 penetrates through the spiral cylinder 442 and is fixedly connected with the left side of the locking disc 42, the right side surface of the locking disc 42 is provided with a second rotating rod 45 which is arranged in an extending way towards the right side, the extending section at the right side of the second rotating rod 45 penetrates through the right side surface of the first frame column 4 and is connected in a rotating and matching way, a first sliding groove 46 is arranged in the rear side surface of the conversion cavity 43, an angle adjusting screw 463 extending left and right is arranged in the first sliding groove 46, the angle adjusting screw 463 is connected with an angle adjusting sliding block 461 in a screw thread fit manner, the left side and the right side of the front side surface of the angle adjusting sliding block 461 are provided with guide arms 462 which extend into the conversion cavity 43 in an equal manner, the inside of the guide arms 462 is connected with a clamping shaft 435 which extends towards the left and the right, a double-sided cone wheel 436 is connected on the clamping shaft 435 between the two groups of guide arms 462 in a sliding and matching way, a second taper wheel 432 is fixedly arranged on the outer surface of the first rotating rod 433 on the left side of the first taper wheel 431, and an opening device is arranged in the first column 4.
Wherein the bottom surface of the first frame column 4 is fixedly connected with the bottom surface of the pedal seat 3, a second sliding groove 31 which is arranged in a left-right extending manner is arranged in the right side surface of the pedal seat 3, a first screw rod 32 which is arranged in a left-right extending manner is arranged in the second sliding transportation groove 31, the left end of the first screw rod 32 is connected with the inner side surface of the left side of the second sliding transportation groove 31 in a rotating and matching manner, the right end of the first screw rod 32 is matched and connected with a first power device 33, the outer surface of the first power device 33 is arranged in the inner side surface of the right side of the second sliding transportation groove 31 and is fixedly connected with the inner side surface, a first sliding block 34 which is in threaded fit connection with the first threaded rod 32 is connected in the second sliding groove 31 in a sliding fit manner, the bottom surface of the second frame column 5 is fixedly connected with the top surface of the first sliding block 34 and is matched with the top surface of the pedal seat 3 in a sliding manner, so that the requirements of different sizes of pedals for pedal angle modulation work are met.
the right end of the first frame column 4 and the left end of the second frame column 5 are relatively provided with rotary fasteners 51, a pedal plate 6 is arranged between the two groups of rotary fasteners 51 in a matched and connected mode, the right side of the second rotary rod 45 extends out of the right side of the first frame column 4, the tail tip of the second rotary rod is fixedly connected with the rotary fasteners 51 at the right end of the first frame column 4, and the rotary fasteners 51 at the right end of the second frame column 5 are in a rotary matched and connected mode with the left side of the second frame column 5, so that the pedal plate 6 is installed quickly and is controlled to rotate.
The left end of the angle adjusting screw 463 is connected with a second power device 464 in a matched manner, the outer surface of the second power device 464 is arranged in the inner side face on the left side of the first sliding transport groove 46 and is fixedly connected with the inner side face on the right side of the first sliding transport groove 46, the right end of the angle adjusting screw 463 is connected with the inner side face on the right side of the first sliding transport groove 46 in a rotating and matched manner, so that the angle adjusting sliding transport block 461 is automatically controlled to move left and right along the first sliding transport groove 46, the angle adjusting sliding transport block 461 is automatically controlled to drive the bilateral cone wheel 436 to move left and right, and the bilateral cone wheel 436 is controlled to be switched, meshed and switched between the second cone wheel 432 and the first cone wheel 431.
the left end of the clamping shaft 435 is connected with a third power device 434 in a matching manner, the outer surface of the third power device 434 is arranged in the left side surface of the conversion cavity 43 and is fixedly connected with the left side surface of the conversion cavity 43, and the right end of the clamping shaft 435 is connected with the right side surface of the conversion cavity 43 in a rotating and matching manner, so that the angle adjustment work and the locking work of the pedal plate can be automatically controlled.
Wherein the double-sided cone wheel 436 is located between the second cone wheel 432 and the first cone wheel 431.
Wherein, interior spiral shell type lock sleeve 413 right flank is fixed to be equipped with composite pad 414, composite pad 414 is relative locking dish 42 left flank is equipped with trigger 421 from top to bottom equally, trigger 421 with third power device 434 electric connection to realize automatic locking, improve work efficiency.
The left end and the right end of the pedal plate 6 are both provided with clamping grooves 61, and the opposite sides of the rotary joint 51 at the right end of the first frame column 4 and the left end of the second frame column 5 are respectively provided with clamping blocks 511 which are matched and connected with the clamping grooves 61 at the left end and the right end of the pedal plate 6, so that stable matching is realized.
The air opening device comprises a placing cavity 401 arranged at the bottom in the first frame column 4, an air opening device 402 is installed in the placing cavity 401, a cover plate 403 is also arranged outside the air opening device 402 in an openable mode, and when an electric leakage accident occurs, the air opening device 402 can be tripped in time to protect the device from being damaged.
In the initial state, the angle-adjusting sliding-transporting block 461 is located at the rightmost position in the first sliding-transporting groove 46, at this time, the right side tapered surface of the double-sided tapered wheel 436 between the two sets of guide arms 462 at the front end of the angle-adjusting sliding-transporting block 461 is engaged with the first tapered wheel 431, at this time, the left side tapered surface of the double-sided tapered wheel 436 is furthest away from the second tapered wheel 432, then, the fastening shaft 435 is driven to revolve by the third power device 434, the double-sided tapered wheel 436 is driven to revolve by the fastening shaft 435, the double-sided tapered wheel 436 drives the first tapered wheel 431 and the rotary cylinder 441 on the first tapered wheel 431, the rotary cylinder 441 drives the spiral-threaded rotary cylinder 442 to revolve, the inner-threaded rotary cylinder 442 is driven to revolve by the spiral-threaded rotary cylinder 442, the inner-threaded locking sleeve 413 is driven to revolve, the inner-threaded locking sleeve 413 drives the composite pad 414 to abut against the left side surface of the locking disc 42 as shown in fig. 4, at this time, the composite pad 414 touches the trigger 421 on the left side of the locking disc 42 to generate a signal, meanwhile, the composite pad 414 abuts against the left side surface of the locking disk 42, and is in a locking state.
When the angle adjustment of the pedal is needed, the first power device 33 drives the first screw rod 32 to rotate, so that the first screw rod 32 drives the first sliding block 34 to move to the rightmost position in the second sliding groove 31, the first sliding block 34 drives the second frame column 5 to move to the rightmost position on the top surface of the pedal seat 3, the clamping groove 61 in the left end of the pedal 6 is completely matched and connected with the clamping block 511 on the right side of the rotating joint piece 51 on the right end of the first frame column 4, meanwhile, the clamping block 511 on the left side of the rotating joint piece 51 on the left end of the second frame column 5 and the clamping groove 61 in the right end of the pedal 6 are in opposite positions, the first power device 33 drives the first screw rod 32 to rotate reversely, so that the first screw rod 32 drives the first sliding block 34 and the second frame column 5 on the top of the first sliding joint piece 34 to slide and move along the left side direction of the second sliding groove 31 until the clamping block 51 on the left end of the second rotating frame column 5 is completely inserted into the clamping block 51 on the right end of the pedal 6 In the clamping groove 61, the first power device 33 is controlled to stop rotating, then the third power device 434 drives the clamping shaft 435 to rotate reversely, the clamping shaft 435 drives the double-sided cone wheel 436 to rotate reversely, the double-sided cone wheel 436 further drives the first cone wheel 431 to rotate reversely, the first cone wheel 431 drives the rotary cylinder 441 and the spiral cylinder 442 at the right tail end of the rotary cylinder 441 to rotate reversely, the spiral cylinder 442 further drives the inner spiral locking sleeve 413 to move along the left side direction of the locking device 411, meanwhile, the guide block 415 gradually moves along the left side direction in the guide groove 412, at this time, the inner spiral locking sleeve 413 is gradually far away from the left side surface of the locking disc 42 until the inner spiral locking sleeve 413 moves to the leftmost position in the locking device 411, at this time, the third power device 434 is controlled to stop rotating, and then the angle adjusting spiral rod 463 is driven by the second power device 464 to rotate, when the angle-adjusting sliding block 461 is driven by the angle-adjusting screw 463 to gradually move to the leftmost position in the first sliding groove 46, at this time, the double-sided cone wheel 436 is engaged with the second cone wheel 432, then the third power device 434 drives the fastening shaft 435 to revolve, the fastening shaft 435 drives the double-sided cone wheel 436 to revolve, the double-sided cone wheel 436 drives the second cone wheel 432 to revolve, the second cone wheel 432 drives the first rotating rod 433 to revolve, the first rotating rod 433 drives the locking disk 42 and the second rotating rod 45 on the right side of the locking disk 42 to revolve, and the revolving joint 51 on the right side tail end of the second rotating rod 45 drives the revolving joint 51 on the right side tail end of the second rotating rod 45 and the revolving joint 51 on the left side of the second mounting column 5 to revolve to realize the angle-adjusting work of the pedal plate 6.
The invention has the beneficial effects that:
1. A locking cavity is arranged in a first frame column on the right side of a conversion cavity, a partition plate is arranged between the conversion cavity and the locking cavity, a rotary cylinder which is arranged to extend towards the left side is connected in a circling fit mode in the partition plate, a locking device is fixedly arranged inside the left side of the locking cavity, an inner screw type locking sleeve is connected in a sliding fit mode in the locking device, a screw type screw cylinder is connected in the inner screw type locking sleeve in a screw type thread fit mode, guide grooves are formed in the inner side surfaces of the front side and the rear side of the locking device in the same direction, guide blocks which are fixedly connected with the screw type screw cylinder are connected in the sliding fit mode in the guide grooves, an extension section on the left side of the rotary cylinder stretches into the conversion cavity, a first conical wheel is fixedly arranged on the outer side of a tail tip, a tail tip on the right side of the rotary cylinder is fixedly connected with the left side of the screw type screw cylinder, a locking disc is arranged in the locking cavity on the right side of the locking device in a, the right side extension section of the first rotary rod penetrates through the spiral barrel and then is fixedly connected with the left end of the locking disc, the right side surface of the locking disc is provided with a second rotary rod which is arranged in an extending way towards the right side, the right side extension section of the second rotary rod penetrates through the right side surface of the first frame column and is connected in a rotating matching way, the rear side surface of the conversion cavity is provided with a first sliding groove, the first sliding groove is internally provided with angle-adjusting spiral rods which are arranged in an extending way from left to right, the spiral threads on the angle-adjusting spiral rods are connected with angle-adjusting sliding blocks in a matching way, the left side and the right side of the front side surface of each angle-adjusting sliding block are provided with guide arms which are extended into the conversion cavity in an equal way, the guide arms are internally connected with clamping shafts which are arranged in an extending way from left to right in a matching way, the clamping shafts between the two groups of guide arms are connected with bilateral conical wheels in a sliding matching way, the outer surface of the first rotary rod on the left, the equipment investment is reduced, the manufacturing cost is reduced, the working efficiency of the pedal plate angle modulation is improved, meanwhile, automatic locking is achieved, and the safety is improved.
2. Through first frame post bottom surface and pedal seat bottom surface fixed connection, the extension second slippage groove that sets up about establishing in the pedal seat right flank, the extension first screw rod that sets up about establishing in the second slippage groove, first screw rod left end and the cooperation of circling round of second slippage groove left side medial surface are connected, first screw rod right-hand member is connected with the cooperation of first power device, first power device surface sets up in the inboard surface of second slippage groove right side and fixed connection, the cooperation of the interior slip of second slippage groove is connected the first slippage piece of being connected with first screw rod screw thread cooperation, second frame post bottom surface and first slippage piece top surface fixed connection just with the top surface slip cooperation of pedal seat to the realization satisfies the running-board of not unidimensional and carries out the angle modulation work.
3. The composite pad is fixedly arranged on the right side face of the inner spiral locking sleeve, the trigger is arranged on the left side face of the locking disc opposite to the composite pad in an up-down equal mode, and the trigger is electrically connected with the third power device, so that automatic locking is achieved, and working efficiency is improved.
4. The automatic pedal angle adjusting device is simple in structure and convenient to operate, can realize automatic switching locking and pedal angle adjusting work, thereby improving the running stability of the automatic pedal angle adjusting, reducing equipment investment, reducing manufacturing cost, improving the working efficiency of the pedal angle adjusting, realizing automatic locking, meeting the requirement that pedals with different sizes perform pedal angle adjusting work, and saving cost.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (9)
1. The utility model provides a wheelchair is used in medical treatment, includes main part, pedal seat and sets up respectively at the first frame post and the second frame post of the pedal seat top surface left and right sides, its characterized in that: the main body comprises an angle-adjustable chair back and a cushion, the cushion is fixedly arranged at the top end of a wheelchair frame, four feet of the wheelchair frame are respectively provided with a roller, the front end of the wheelchair frame is provided with a pedal seat, a first frame column is internally provided with a conversion cavity, a first frame column at the right side of the conversion cavity is internally provided with a locking cavity, a partition plate is arranged between the conversion cavity and the locking cavity, the partition plate is internally and circularly matched and connected with a spiral cylinder extending towards the left side, the inside of the left side of the locking cavity is fixedly provided with a locking device, the locking device is internally and slidably connected with an internal screw type locking sleeve, a screw type thread spiral cylinder is connected with the internal screw type locking sleeve in a matching way, the inner side surfaces of the front side and the rear side of the locking device are equally provided with guide grooves, the guide blocks fixedly connected with the screw type spiral cylinder are slidably and cooperatively connected in the guide grooves, the extending section at the left side of the spiral cylinder extends into the conversion cavity, the outer, a locking disc is arranged in a locking cavity on the right side of the locking device, a first rotary rod which is arranged in a stretching way towards the left side and the right side is matched in a rotary cylinder, the left side stretching tail tip of the first rotary rod stretches into a conversion cavity and is connected with the inner side surface of the left side of the conversion cavity in a rotating way, a right side stretching section of the first rotary rod penetrates through the spiral threaded rotary cylinder and is fixedly connected with the left side of the locking disc, a second rotary rod which is arranged in a stretching way towards the right side is arranged on the right side of the locking disc, a right side stretching section of the second rotary rod penetrates through the right side surface of the first frame column and is connected in a rotating way, a first sliding groove is arranged in the rear side surface of the conversion cavity, an angle adjusting spiral rod which is arranged in a stretching way from left to right is arranged in the first sliding groove, an angle adjusting sliding block is connected on the angle adjusting spiral thread on the angle adjusting spiral rod in a matching way, guide arms which stretch into the conversion cavity are arranged on the left and right sides of, a second cone wheel is fixedly arranged on the outer surface of a first rotating rod on the left side of the first cone wheel, and an air opening device is arranged in the first frame column.
2. The medical wheelchair as claimed in claim 1, wherein: first frame post bottom surface with footboard seat bottom surface fixed connection, the second slippage groove that the extension set up about being equipped with in the footboard seat right flank, the first screw rod that the extension set up about being equipped with in the second slippage groove, first screw rod left end with second slippage groove left side medial surface circles round the cooperation and connects, first screw rod right-hand member is connected with the cooperation of first power device, first power device surface set up in the second slippage groove right side medial surface and fixed connection, the second slippage inslot slippage cooperation be connected with the first slippage piece that first screw rod screw thread cooperation is connected, second frame post bottom surface with first slippage piece top surface fixed connection and with the top surface slippage cooperation of footboard seat.
3. The medical wheelchair as claimed in claim 1, wherein: the right end of the first frame column and the left end of the second frame column are oppositely provided with rotary fasteners, a pedal is arranged between the two groups of rotary fasteners in a matched and connected mode, the right side of the second rotary rod extends to the outside of the right side of the first frame column, the tail tip of the second rotary rod is fixedly connected with the rotary fasteners at the right end of the first frame column, and the rotary fasteners at the left end of the second frame column are connected with the left side of the second frame column in a rotary and matched mode.
4. The medical wheelchair as claimed in claim 1, wherein: the left end of the angle adjusting screw rod is connected with a second power device in a matched mode, the outer surface of the second power device is arranged in the inner side face of the left side of the first sliding transportation groove and is fixedly connected with the inner side face of the right side of the first sliding transportation groove in a rotating and matched mode, and the right end of the angle adjusting screw rod is connected with the inner side face of the right side of the first sliding transportation groove in a rotating and matched mode.
5. The medical wheelchair as claimed in claim 1, wherein: the left end of the clamping shaft is connected with a third power device in a matched mode, the outer surface of the third power device is arranged in the left side face of the conversion cavity and is fixedly connected with the left side face of the conversion cavity, and the right end of the clamping shaft is connected with the right side face of the conversion cavity in a rotating matched mode.
6. The medical wheelchair as claimed in claim 1, wherein: the bilateral conical wheel is positioned between the second conical wheel and the first conical wheel.
7. The medical wheelchair as claimed in claim 5, wherein: the right side surface of the inner spiral locking sleeve is fixedly provided with a composite pad, the left side surface of the locking disc opposite to the composite pad is provided with a trigger in an up-down equal mode, and the trigger is electrically connected with a third power device.
8. The medical wheelchair as claimed in claim 3, wherein: clamping grooves are formed in the left end and the right end of the pedal plate, and clamping blocks which are used for being connected with the clamping grooves in the left end and the right end of the pedal plate in a matched mode are arranged on the opposite sides of the rotary connecting piece at the right end of the first frame column and the left end of the second frame column respectively.
9. The medical wheelchair as claimed in claim 1, wherein: the empty device of opening is including setting up the chamber of placing of bottom in the first frame post, it has the empty ware of opening to install in the chamber of placing, what the outside of empty ware of opening still can open is provided with the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710449419.9A CN107837148B (en) | 2017-06-14 | 2017-06-14 | Medical wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710449419.9A CN107837148B (en) | 2017-06-14 | 2017-06-14 | Medical wheelchair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107837148A CN107837148A (en) | 2018-03-27 |
| CN107837148B true CN107837148B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710449419.9A Active CN107837148B (en) | 2017-06-14 | 2017-06-14 | Medical wheelchair |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108078315A (en) * | 2017-06-14 | 2018-05-29 | 黄斯斯 | A kind of efficient stirred type cup |
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| CN106389019A (en) * | 2015-07-24 | 2017-02-15 | 莘乐义 | Multifunctional wheelchair |
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| JPH07145822A (en) * | 1993-11-24 | 1995-06-06 | Toyota Autom Loom Works Ltd | Preload control mechanism |
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|---|---|---|---|---|
| CN2656204Y (en) * | 2003-07-20 | 2004-11-17 | 黄继林 | Electric angle regulator for car seat |
| CN203873990U (en) * | 2014-05-06 | 2014-10-15 | 谷席娟 | Novel multifunctional electric wheelchair |
| CN104528103A (en) * | 2014-11-28 | 2015-04-22 | 苏州速腾电子科技有限公司 | Spacing adjustable storage rack |
| CN204655904U (en) * | 2015-05-20 | 2015-09-23 | 北京体健科技发展有限公司 | Four limbs interlock rehabilitation training system |
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| CN107837148A (en) | 2018-03-27 |
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Effective date of registration: 20191113 Address after: 264200 room 406, building 1, Weihai Daying e-commerce incubator office building, south of Shenyang middle road and west of science and technology road, Zhangcun Town, Huancui District, Weihai City, Shandong Province Applicant after: Weihai Hongtai Biotechnology Co., Ltd. Address before: 610041 No. 1 Building, No. 200 Tianfu Fifth Street, Chengdu High-tech Zone, Sichuan Province Applicant before: Chengdu fayida Technology Co., Ltd. |
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