CN109044745A - A kind of ultralight crutch of burn amputee - Google Patents
A kind of ultralight crutch of burn amputee Download PDFInfo
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- CN109044745A CN109044745A CN201810683940.3A CN201810683940A CN109044745A CN 109044745 A CN109044745 A CN 109044745A CN 201810683940 A CN201810683940 A CN 201810683940A CN 109044745 A CN109044745 A CN 109044745A
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- ultralight
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/02—Crutches
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/053—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0192—Specific means for adjusting dimensions
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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- Crystallography & Structural Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
A kind of ultralight crutch of burn amputee, the crutch includes armpit support (1), armpit bracket (2), hand rest (3), stick stem (4), height adjustment device (7), pedestal (6), the armpit bracket (2) is rectangle, the short side side of armpit bracket (2) is provided with armpit support (1), another short side of the armpit bracket (2) is connect with stick stem (4) by regulation limiting device (5), the regulation limiting device (5) includes vertical adjusting limiting device and rotating device, the rotating device is fixedly connected with vertical adjusting limiting device, the stick stem passes through the vertical adjusting limiting device of regulation limiting device, and stick stem and vertical adjusting limiting device can be fixed by stop screw, the short side of the armpit bracket and the rotating device of regulation limiting device connect, it can be rotated by axis of short side.
Description
Technical field
The invention belongs to the field of medical instrument technology, are related to a kind of ultralight crutch of burn amputee.
Background technique
Crutch is disabled person or a kind of essential assistant product of orthopaedics patient.In existing technology, the body of crutch
Product it is larger, taken up too much space, used also than cumbersome, and it is not foldable, for example, by bus when, be difficult to put vehicle into
In, it is extremely inconvenient to cause to carry；Furthermore common crutch is all machined to integrated in the market, and length is unadjustable when use,
But everyone height difference causes it to have different needs to the height of crutch, has certain limitation.
Summary of the invention
The ultralight crutch of burn amputee of the invention, structure is simple, and can be with folding storage, adjustable, the matter of height
It measures ultralight, is convenient for carrying, and there is anti-microbial property, for using and reuse provides guarantee.
To achieve the above object, the invention provides the following technical scheme:
A kind of ultralight crutch of burn amputee, the crutch include armpit support (1), armpit bracket (2), hand rest (3), stick stem (4),
Height adjustment device (7), pedestal (6), the armpit bracket (2) are rectangle, and the short side side of armpit bracket (2) is provided with armpit support
(1), another short side of the armpit bracket (2) is connect with stick stem (4) by regulation limiting device (5), the adjusting limit dress
Setting (5) includes vertical adjusting limiting device and rotating device, and the rotating device is fixedly connected with vertical adjusting limiting device, institute
The vertical adjusting limiting device that stick stem passes through regulation limiting device is stated, and can be limited stick stem and vertical adjusting by stop screw
Position device is fixed, and the short side of the armpit bracket and the rotating device of regulation limiting device connect, and can be turned by axis of short side
It is dynamic, it further include having the fixation device that armpit bracket can be fixed, the stick stem (4) is slidably connected with pedestal (6), and passes through height
Regulating device (7) fixes stick stem (4) with pedestal (6) relative position.
In use, crutch can be stored and be folded, needed in use, by crutch armpit bracket exhibition by regulation limiting device
It opens, can also be fixed according to the relative position that the position of hand and armpit adjusts hand rest and armpit support.
Further, the regulation limiting device (5) includes vertical adjusting limiting device and rotating device, the vertical tune
Section limiting device and rotating device relative position are fixed, and wherein stick stem can be allowed to pass through among vertical adjusting limiting device, described
It is provided with screw hole in stick stem, a screw hole is provided on the vertical adjusting limiting device, is provided with several spiral shells in the stick stem
Hole, it is by screw that vertical adjusting limiting device and stick stem relative position is fixed to adjust armpit support (1) and hand rest (3) with respect to position
It sets, the rotating device is connect with the short side of the armpit bracket, can be rotated by axis of short side, and the fixed device is to set
It sets on rotating device, can lock armpit bracket prevents its rotation, or fixed device is located in the long side of armpit bracket, is led to
It crosses and long side is locked with stick stem (4) and fixed, prevent its rotation.
Further, the rotating device is ratchet mechanism.Ratchet mechanism can carry out rotation armpit bracket with gear, and keep away
Exempt from armpit bracket to swing back and forth, accidentally injures patient.
Further, height adjustment device (7) is stop screw, passes through the screw hole on pedestal, the stick stem lower part is set
Several screw holes are equipped with, are fixed pedestal and stick stem relative position to adjust the height of crutch by screw.
It is provided with the space for accommodating stick stem among the pedestal, track is provided on the space wall, stick stem lower part is inserted
Enter into space and slide along the track, compressed spring (8) are provided between stick stem lower end surface and space bottom.
Further, the armpit support (1) is multilayered structure, is from top to bottom followed successively by wearing layer, antibiotic layer, memory foam
Layer, rubber layer, the wearing layer are formed using cotton fiber as warp thread, by weft yarns of silk, and the antibiotic layer uses chitin
The weaving of fiber core-spun fiber, the memory foam layer are internally provided with several holes, spherical bamboo charcoal are provided in the hole.
Wearing layer can effectively improve the service life of armpit support, and antibiotic layer has a good antibacterial effect, when cross-reference more
Add hygiene and health, by being provided with spherical bamboo charcoal in memory foam layer, can purify oxter air is just, while the spherical shape bamboo charcoal
It can also play the role of massage.
Further, the armpit bracket (2), stick stem (4), the material of pedestal (6) are ultralight aluminium alloy, and the ultralight aluminium closes
The composition (mass percent) of gold are as follows: Zn:7.6-10.2%, Mg:3.8-6.2%, Cu:0.06-0.25%, Ag:0.05-2%,
Fe:0.55-0.85%, Si:0.33-0.45%, Ti:0.1-0.25%, Y:0.01-0.035%, Li:0.25~0.55% are remaining
Amount is Al.Such ingredient design ensure that the intensity and elasticity of aluminium alloy, while guarantee the Ultra light-weight of crutch, be convenient for carrying
With use.It is wherein added to Cu and Ag, guarantees the anti-microbial property of aluminium alloy.
Further, the melting of the ultralight aluminium alloy, heat treatment, hot-working method specifically includes the following steps:
(1) fine copper, magnesium, titanium, silicon, iron, zinc are put into smelting furnace and carry out melting, smelting temperature is 830-920 DEG C, completely
After thawing, then 900~950 DEG C of addition yttriums, silver, Al-Li intermediate alloy are warming up to, keep the temperature 20~30min, it is molten to obtain aluminium alloy
Aluminum alloy melt is cooled to 690~780 DEG C and stands 1-2 hours, is then cast as aluminium alloy by body；
(2) preliminary heat treatment: by aluminium alloy 385-410 DEG C solution treatment 2-6 hours, after water quenching, at 150-165 DEG C
Effect processing 10-18 hours；
(3) it forges: by the blank heating after step (2) heat treatment to 580-630 DEG C in high temperature box type resistance furnace, heat preservation
15-30 minutes, while blank is put into die cavity by preheated mold to 280-350 DEG C, and blocking is carried out under hydraulic device；It will be pre-
Blank after forging is reentered into resistance furnace and is heated to 640-660 DEG C, and finish-forging shapes after heat preservation 15-25 minutes；
(4) it is heat-treated: the alloy product after step (3) forming being kept the temperature 3~8 hours at 430-570 DEG C and is dissolved
Processing, it is then air-cooled to cool to 300~320 DEG C of heat preservations 2~10 hours, it then continues to cool to 130-150 DEG C, keeps the temperature 0.5-2
Hour, it is then warming up to 170-190 DEG C, 20-40 minutes is kept the temperature, is air-cooled to room temperature.
The heat treatment of binding constituents design and heat processing technique, preliminary heat treatment is so that the disperse phase part in aluminium alloy is molten
Solution, while activating antiseptic elements, in conjunction with thermomechanical parameter control and subsequent heat treatment technique, it is ensured that aluminium alloy high-strength it is same
Thing also improves aluminum alloy anti-stress corrosion ability.
Further, the armpit bracket (2), stick stem (4), the material of pedestal (6) are ultralight aluminium alloy, and the ultralight aluminium closes
The composition (mass percent) of gold are as follows: Zn:7.8-8.5%, Mg:4.1-5.3%, Cu:0.08-0.14%, Ag:0.07-1%,
Fe:0.61-0.69%, Si:0.36-0.41%, Ti:0.13-0.16%, Y:0.018-0.02%, Li:0.27~0.38%,
Surplus is Al.
Further, the armpit bracket (2), stick stem (4), the material of pedestal (6) are ultralight aluminium alloy, and the ultralight aluminium closes
The composition (mass percent) of gold are as follows: Zn:9.2-9.9%, Mg:4.8-5.9%, Cu:0.17-0.23%, Ag:0.6-
1.85%, Fe:0.77-0.83%, Si:0.38-0.44%, Ti:0.22-0.24%, Y:0.022-0.033%, Li:0.42~
0.51%, surplus Al.
Further, the melting of the ultralight aluminium alloy, heat treatment, hot-working method specifically includes the following steps:
(1) copper, magnesium, titanium, silicon, iron, zinc raw material are put into smelting furnace and carry out melting, smelting temperature is 860-900 DEG C, complete
After full thawing, then 930~945 DEG C of addition yttriums, silver, Al-Li intermediate alloy are warming up to, keep the temperature 25~30min, it is molten to obtain aluminium alloy
Aluminum alloy melt is cooled to 700~730 DEG C and stands 1-2 hours, is then cast as aluminium alloy by body；
(2) preliminary heat treatment: by aluminium alloy 390-400 DEG C solution treatment 3-5 hours, after water quenching, at 155-160 DEG C
Effect processing 12-16 hours；
(3) it forges: the aluminium alloy after step (2) heat treatment being heated to 600-620 DEG C in high temperature box type resistance furnace, is protected
It is 20-25 minutes warm, while blank is put into die cavity by preheated mold to 300-330 DEG C, and blocking is carried out under hydraulic device；It will
Blank after blocking is reentered into resistance furnace and is heated to 645-655 DEG C, and finish-forging shapes after heat preservation 20-25 minutes；
(4) it is heat-treated: the alloy product after step (3) forming is carried out at solid solution for heat preservation 4-6 hours at 450-480 DEG C
Reason, it is then air-cooled to cool to 305-310 DEG C of heat preservation 3-6 hours, then continue to it is air-cooled cool to 135-140 DEG C, it is small to keep the temperature 1-1.5
When, it is then warming up to 180-185 DEG C, 25-35 minutes is kept the temperature, is air-cooled to room temperature.
Further, be provided with wireless alarmer (9) and alarm switch on hand rest, the wireless alarmer (9) and
The alarm signal receiving device of alarm switch electrical connection, the wireless alarmer and nurse station passes through wireless signal communication.
Beneficial effects of the present invention:
By the design to crutch structure, crutch is stored, it is easy to use, and meanwhile armpit support, hand rest position
To adjust, it ensure that the standardization manufacture of crutch, and recycling, economize on resources.
By the selection of crutch main component material and the selection of heat treatment process, it ensure that crutch light weight, protect simultaneously
Demonstrate,prove the use intensity of crutch, crutch main material also has anti-microbial property, ensure that patient using safe, avoid repetition benefit
The cross-infection of used time；
Armpit support and hand rest select multilayered structure, are from top to bottom followed successively by wearing layer, antibiotic layer, memory foam layer, rubber layer,
The wearing layer is formed using cotton fiber as warp thread, by weft yarns of silk, and the antibiotic layer is fine using chitin fiber cored
Dimension weaving, the memory foam layer are internally provided with several holes, spherical bamboo charcoal are provided in the hole.So that armpit support and hand rest
Service life is elongated, while having massage functions, promotes blood samples of patients circulation, antibiotic layer is selected to ensure that the safety used.
Hand rest has warning function, and patient is helped to call nursing staff in time.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the schematic diagram of the burn ultralight crutch of amputee of the invention；
Fig. 2 is the side schematic view of the burn ultralight crutch of amputee of the invention
Specific embodiment
Embodiment one
A kind of ultralight crutch of burn amputee, the crutch include armpit support (1), armpit bracket (2), hand rest (3), stick stem (4),
Height adjustment device (7), pedestal (6), the armpit bracket (2) are rectangle, and the short side side of armpit bracket (2) is provided with armpit support
(1), another short side of the armpit bracket (2) is connect with stick stem (4) by regulation limiting device (5), the adjusting limit dress
Setting (5) includes vertical adjusting limiting device and rotating device, and the rotating device is fixedly connected with vertical adjusting limiting device, institute
The vertical adjusting limiting device that stick stem passes through regulation limiting device is stated, and can be limited stick stem and vertical adjusting by stop screw
Position device is fixed, and the short side of the armpit bracket and the rotating device of regulation limiting device connect, and can be turned by axis of short side
It is dynamic, it further include having the fixation device that armpit bracket can be fixed, the stick stem (4) is slidably connected with pedestal (6), and passes through height
Regulating device (7) fixes stick stem (4) with pedestal (6) relative position.
When not in use, by regulation limiting device, crutch can be stored and is folded, needed in use, by crutch armpit bracket
Expansion can also be fixed according to the relative position that the position of hand and armpit adjusts hand rest and armpit support.
Wherein stick stem can be allowed to pass through among vertical adjusting limiting device, screw hole is provided in the stick stem, it is described vertical
It is provided with a screw hole on regulation limiting device, is provided with several screw holes in the stick stem, is limited vertical adjusting by screw
Device and stick stem relative position are fixed to adjust armpit support (1) and hand rest (3) relative position, the rotating device and the armpit bracket
Short side connection, can be rotated by axis of short side, the fixed device be setting on rotating device, can be by armpit bracket
Locking prevents its rotation, and the rotating device is ratchet mechanism.Ratchet mechanism can carry out rotation armpit bracket with gear, and avoid
Armpit bracket swings back and forth, and accidentally injures patient.
Height adjustment device (7) is stop screw, passes through the screw hole on pedestal, the stick stem lower part is provided with several spiral shells
Hole is fixed pedestal and stick stem relative position to adjust the height of crutch by screw.
It is provided with the space for accommodating stick stem among the pedestal, track is provided on the space wall, stick stem lower part is inserted
Enter into space and slide along the track, compressed spring (8) are provided between stick stem lower end surface and space bottom.
Position is adjusted when being that guarantee is slow since the effect of spring can feel there is damping force in space movement by stick stem
It sets.
The armpit support (1) and hand rest are multilayered structure, are from top to bottom followed successively by wearing layer, antibiotic layer, memory foam layer, rubber
Glue-line, the wearing layer are formed using cotton fiber as warp thread, by weft yarns of silk, and the antibiotic layer uses chitin fiber packet
Core fibre weaving, the memory foam layer are internally provided with several holes, spherical bamboo charcoal are provided in the hole.
Wearing layer can effectively improve the service life of armpit support, and antibiotic layer has a good antibacterial effect, when cross-reference more
Add hygiene and health, by being provided with spherical bamboo charcoal in memory foam layer, can purify oxter air is just, while the spherical shape bamboo charcoal
It can also play the role of massage.
The armpit bracket (2), stick stem (4), the material of pedestal (6) are ultralight aluminium alloy, the composition of the ultralight aluminium alloy
(mass percent) are as follows: Zn:7.9%, Mg:5.62%, Cu:0.17%, Ag:1.6%, Fe:0.77%, Si:0.42%, Ti:
0.19%, Y:0.03%, Li:0.36%, surplus Al.Such ingredient design ensure that the intensity and elasticity of aluminium alloy, together
When guarantee crutch Ultra light-weight, be convenient for carrying and use.It is wherein added to Cu and Ag, guarantees the anti-microbial property of aluminium alloy.
The melting of the ultralight aluminium alloy, heat treatment, hot-working method specifically includes the following steps:
(1) fine copper, magnesium, titanium, silicon, iron, zinc are put into smelting furnace and carry out melting, smelting temperature is 890 DEG C, is melted completely
Afterwards, then 935 DEG C of addition yttriums, silver, Al-Li intermediate alloy are warming up to, keep the temperature 15min, obtains aluminium alloy solution, aluminum alloy melt is dropped
Temperature is to 700 DEG C and stands 1.5 hours, is then cast as aluminium alloy；
(2) preliminary heat treatment: by aluminium alloy 400 DEG C solution treatment 4 hours, it is small in 155 DEG C of ageing treatments 16 after water quenching
When；
(3) it forges: the blank heating after step (2) heat treatment being kept the temperature 16 points to 595 DEG C in high temperature box type resistance furnace
Clock, while blank is put into die cavity by preheated mold to 290 DEG C, and blocking is carried out under hydraulic device；By the blank weight after blocking
It is newly put into resistance furnace and is heated to 655 DEG C, finish-forging shapes after twenty minutes for heat preservation；
(4) it is heat-treated: by the alloy product after step (3) forming in 480 DEG C of heat preservations progress solution treatment in 4 hours, so
It is air-cooled afterwards to cool to 305 DEG C of heat preservations 3 hours, it then continues to cool to 145 DEG C, keeps the temperature 1 hour, be then warming up to 180 DEG C, heat preservation
30 minutes, it is air-cooled to room temperature.
Wireless alarmer (9) and alarm switch, the wireless alarmer (9) and alarm switch electricity are provided on hand rest
The alarm signal receiving device of connection, the wireless alarmer and nurse station passes through wireless signal communication.
Embodiment two
A kind of ultralight crutch of burn amputee, the crutch include armpit support (1), armpit bracket (2), hand rest (3), stick stem (4),
Height adjustment device (7), pedestal (6), the armpit bracket (2) are rectangle, and the short side side of armpit bracket (2) is provided with armpit support
(1), another short side of the armpit bracket (2) is connect with stick stem (4) by regulation limiting device (5), the adjusting limit dress
Setting (5) includes vertical adjusting limiting device and rotating device, and the rotating device is fixedly connected with vertical adjusting limiting device, institute
The vertical adjusting limiting device that stick stem passes through regulation limiting device is stated, and can be limited stick stem and vertical adjusting by stop screw
Position device is fixed, and the short side of the armpit bracket and the rotating device of regulation limiting device connect, and can be turned by axis of short side
It is dynamic, it further include having the fixation device that armpit bracket can be fixed, the stick stem (4) is slidably connected with pedestal (6), and passes through height
Regulating device (7) fixes stick stem (4) with pedestal (6) relative position.
In use, crutch can be stored and be folded, needed in use, by crutch armpit bracket exhibition by regulation limiting device
It opens, can also be fixed according to the relative position that the position of hand and armpit adjusts hand rest and armpit support.
The regulation limiting device (5) includes vertical adjusting limiting device and rotating device, the vertical adjusting limit dress
It sets and is fixed with rotating device relative position, wherein stick stem can be allowed to pass through among vertical adjusting limiting device, be set in the stick stem
It is equipped with screw hole, a screw hole is provided on the vertical adjusting limiting device, several screw holes is provided in the stick stem, passes through spiral shell
Nail is fixed to adjust armpit support (1) and hand rest (3) relative position, the rotation by vertical adjusting limiting device and stick stem relative position
Device is connect with the short side of the armpit bracket, can be rotated by axis of short side, and the fixed device is located in armpit bracket
In long side, is fixed and locking long side with stick stem (4), prevent its rotation.
The rotating device is ratchet mechanism.Ratchet mechanism can carry out rotation armpit bracket with gear, and avoid armpit bracket
It swings back and forth, accidentally injures patient.
Height adjustment device (7) is stop screw, passes through the screw hole on pedestal, the stick stem lower part is provided with several spiral shells
Hole is fixed pedestal and stick stem relative position to adjust the height of crutch by screw.
It is provided with the space for accommodating stick stem among the pedestal, track is provided on the space wall, stick stem lower part is inserted
Enter into space and slide along the track, compressed spring (8) are provided between stick stem lower end surface and space bottom.
The armpit support (1) and hand rest are multilayered structure, are from top to bottom followed successively by wearing layer, antibiotic layer, memory foam layer, rubber
Glue-line, the wearing layer are formed using cotton fiber as warp thread, by weft yarns of silk, and the antibiotic layer uses chitin fiber packet
Core fibre weaving, the memory foam layer are internally provided with several holes, spherical bamboo charcoal are provided in the hole.
Wearing layer can effectively improve the service life of armpit support, and antibiotic layer has a good antibacterial effect, when cross-reference more
Add hygiene and health, by being provided with spherical bamboo charcoal in memory foam layer, can purify oxter air is just, while the spherical shape bamboo charcoal
It can also play the role of massage.
The armpit bracket (2), stick stem (4), the material of pedestal (6) are ultralight aluminium alloy, the composition of the ultralight aluminium alloy
(mass percent) are as follows: Zn:9.8%, Mg:6.15%, Cu:0.23%, Ag:1.95%, Fe:0.78%, Si:0.43%, Ti:
0.18%, Y:0.034%, Li:0.43%, surplus Al.Such ingredient design ensure that the intensity and elasticity of aluminium alloy, together
When guarantee crutch Ultra light-weight, be convenient for carrying and use.It is wherein added to Cu and Ag, guarantees the anti-microbial property of aluminium alloy.
Further, the melting of the ultralight aluminium alloy, heat treatment, hot-working method specifically includes the following steps:
(1) fine copper, magnesium, titanium, silicon, iron, zinc are put into smelting furnace and carry out melting, smelting temperature is 880 DEG C, is melted completely
Afterwards, then 915 DEG C of addition yttriums, silver, Al-Li intermediate alloy are warming up to, keep the temperature 20min, obtains aluminium alloy solution, aluminum alloy melt is dropped
Temperature is to 720 DEG C and stands 2 hours, is then cast as aluminium alloy；
(2) preliminary heat treatment: by aluminium alloy 405 DEG C solution treatment 5 hours, it is small in 155 DEG C of ageing treatments 14 after water quenching
When；
(3) it forges: the blank heating after step (2) heat treatment being kept the temperature 15 points to 610 DEG C in high temperature box type resistance furnace
Clock, while blank is put into die cavity by preheated mold to 290 DEG C, and blocking is carried out under hydraulic device；By the blank weight after blocking
It is newly put into resistance furnace and is heated to 645 DEG C, finish-forging shapes after twenty minutes for heat preservation；
(4) it is heat-treated: by the alloy product after step (3) forming in 565 DEG C of heat preservations progress solution treatment in 7 hours, so
It is air-cooled afterwards to cool to 315 DEG C of heat preservations 5 hours, it then continues to cool to 145 DEG C, keeps the temperature 1 hour, be then warming up to 180 DEG C, heat preservation
30 minutes, it is air-cooled to room temperature.
The heat treatment of binding constituents design and heat processing technique, preliminary heat treatment is so that the disperse phase part in aluminium alloy is molten
Solution, while activating antiseptic elements, in conjunction with thermomechanical parameter control and subsequent heat treatment technique, it is ensured that aluminium alloy high-strength it is same
Thing also improves aluminum alloy anti-stress corrosion ability.
Wireless alarmer (9) and alarm switch, the wireless alarmer (9) and alarm switch electricity are provided on hand rest
The alarm signal receiving device of connection, the wireless alarmer and nurse station passes through wireless signal communication.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of ultralight crutch of burn amputee, which is characterized in that the crutch includes armpit support (1), armpit bracket (2), hand rest
(3), stick stem (4), height adjustment device (7), pedestal (6), the armpit bracket (2) are rectangle, the short side side of armpit bracket (2)
It is provided with armpit support (1), another short side of the armpit bracket (2) is connect with stick stem (4) by regulation limiting device (5), described
Regulation limiting device (5) includes vertical adjusting limiting device and rotating device, the rotating device and vertical adjusting limiting device
It is fixedly connected, the stick stem passes through the vertical adjusting limiting device of regulation limiting device, and can be by stop screw by stick stem
It is fixed with vertical adjusting limiting device, the short side of the armpit bracket and the rotating device of regulation limiting device connect, can be with short
Side is that axis is rotated, and further includes having the fixation device that can fix armpit bracket, the stick stem (4) and pedestal (6) sliding connect
It connects, and fixes stick stem (4) with pedestal (6) relative position by height adjustment device (7).
2. a kind of ultralight crutch of burn amputee as described in claim 1, which is characterized in that the regulation limiting device (5)
Including vertical adjusting limiting device and rotating device, the vertical adjusting limiting device and rotating device relative position are fixed,
Stick stem can be allowed to pass through among middle vertical adjusting limiting device, screw hole, the vertical adjusting limit dress are provided in the stick stem
It sets and is provided with a screw hole, be provided with several screw holes in the stick stem, by screw by vertical adjusting limiting device and stick stem
Relative position is fixed to adjust armpit support (1) and hand rest (3) relative position, the short side company of the rotating device and the armpit bracket
It connects, can be rotated by axis of short side, the fixed device is arranged on rotating device, and can lock armpit bracket prevents
It is rotated, or fixed device is located in the long side of armpit bracket, is fixed and locking long side with stick stem (4), is prevented it
Rotation.
3. such as a kind of ultralight crutch of burn amputee claimed in claims 1-2, which is characterized in that the rotating device is ratchet
Mechanism.
4. a kind of ultralight crutch of burn amputee as described in claim 1-3, which is characterized in that height adjustment device (7) is
Stop screw passes through the screw hole on pedestal, and the stick stem lower part is provided with several screw holes, by screw by pedestal and stick stem phase
To the fixed height to adjust crutch in position.
5. a kind of ultralight crutch of burn amputee as described in claim 1-4, which is characterized in that the armpit support (1) is multilayer
Structure, is from top to bottom followed successively by wearing layer, antibiotic layer, memory foam layer, rubber layer, the wearing layer using cotton fiber as warp thread,
It is formed by weft yarns of silk, the antibiotic layer is weaved using chitin fiber core-spun fiber, inside the memory foam layer
Several holes are provided with, spherical bamboo charcoal is provided in the hole.
6. a kind of ultralight crutch of burn amputee as claimed in claims 1-5, which is characterized in that the armpit bracket (2), stick stem
(4), the material of pedestal (6) is ultralight aluminium alloy, the composition (mass percent) of the ultralight aluminium alloy are as follows: Zn:7.6-
10.2%, Mg:3.8-6.2%, Cu:0.06-0.25%, Ag:0.05-2%, Fe:0.55-0.85%, Si:0.33-0.45%,
Ti:0.1-0.25%, Y:0.01-0.035%, Li:0.25~0.55%, surplus Al.
7. a kind of ultralight crutch of burn amputee as described in claim 1-6, which is characterized in that the ultralight aluminium alloy melts
Refining, heat treatment, hot-working method specifically includes the following steps:
(1) fine copper, magnesium, titanium, silicon, iron, zinc are put into smelting furnace and carry out melting, smelting temperature is 830-920 DEG C, is melted completely
Afterwards, then 900~950 DEG C of addition yttriums, silver, Al-Li intermediate alloy are warming up to, keep the temperature 20~30min, obtains aluminium alloy solution, it will
Aluminum alloy melt is cooled to 690~780 DEG C and stands 1-2 hours, is then cast as aluminium alloy；
(2) preliminary heat treatment: by aluminium alloy 385-410 DEG C solution treatment 2-6 hours, after water quenching, at 150-165 DEG C of timeliness
Reason 10-18 hours；
(3) it forges: the blank heating after step (2) heat treatment being kept the temperature into 15- to 580-630 DEG C in high temperature box type resistance furnace
30 minutes, while blank is put into die cavity by preheated mold to 280-350 DEG C, and blocking is carried out under hydraulic device；After blocking
Blank be reentered into resistance furnace and be heated to 640-660 DEG C, finish-forging forming after heat preservation 15-25 minute；
(4) it is heat-treated: by the alloy product after step (3) forming in 430-570 DEG C of heat preservation progress solution treatment in 3~8 hours,
Then air-cooled to cool to 300~320 DEG C of heat preservations 2~10 hours, it then continues to cool to 130-150C, keeps the temperature 0.5-2 hours, so
After be warming up to 170-190C, keep the temperature 20-40 minutes, be air-cooled to room temperature.
8. a kind of ultralight crutch of burn amputee as described in claim 1-7, which is characterized in that the armpit bracket (2), stick stem
(4), the material of pedestal (6) is ultralight aluminium alloy, the composition (mass percent) of the ultralight aluminium alloy are as follows: Zn:7.8-
8.5%, Mg:4.1-5.3%, Cu:0.08-0.14%, Ag:0.07-1%, Fe:0.61-0.69%, Si:0.36-0.41%,
Ti:0.13-0.16%, Y:0.018-0.02%, Li:0.27~0.38%, surplus Al.
9. a kind of ultralight crutch of burn amputee according to claims 1-8, which is characterized in that the armpit bracket (2), stick stem
(4), the material of pedestal (6) is ultralight aluminium alloy, the composition (mass percent) of the ultralight aluminium alloy are as follows: Zn:9.2-
9.9%, Mg:4.8-5.9%, Cu:0.17-0.23%, Ag:0.6-1.85%, Fe:0.77-0.83%, Si:0.38-
0.44%, Ti:0.22-0.24%, Y:0.022-0.033%, Li:0.42~0.51%, surplus Al.
10. a kind of ultralight crutch of burn amputee as claimed in claims 1-9, which is characterized in that the ultralight aluminium alloy
Melting, heat treatment, hot-working method specifically includes the following steps:
(1) copper, magnesium, titanium, silicon, iron, zinc raw material are put into smelting furnace and carry out melting, smelting temperature is 860-900 DEG C, is melted completely
After change, then 930~945 DEG C of addition yttriums, silver, Al-Li intermediate alloy are warming up to, keep the temperature 25~30min, obtain aluminium alloy solution,
Aluminum alloy melt is cooled to 700~730 DEG C and stands 1-2 hours, is then cast as aluminium alloy；
(2) preliminary heat treatment: by aluminium alloy 390-400 DEG C solution treatment 3-5 hours, after water quenching, at 155-160 DEG C of timeliness
Reason 12-16 hours；
(3) it forges: the aluminium alloy after step (2) heat treatment being heated to 600-620 DEG C in high temperature box type resistance furnace, heat preservation
20-25 minutes, while blank is put into die cavity by preheated mold to 300-330 DEG C, and blocking is carried out under hydraulic device；It will be pre-
Blank after forging is reentered into resistance furnace and is heated to 645-655 DEG C, and finish-forging shapes after heat preservation 20-25 minutes；
(4) it is heat-treated: by the alloy product after step (3) forming in 450-480 DEG C of heat preservation progress solution treatment in 4-6 hours,
Then air-cooled to cool to 305-310 DEG C of heat preservation 3-6 hours, then continue to it is air-cooled cool to 135-140 DEG C, keep the temperature 1-1.5 hours,
Then it is warming up to 180-185 DEG C, 25-35 minutes is kept the temperature, is air-cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810683940.3A CN109044745A (en) | 2018-06-28 | 2018-06-28 | A kind of ultralight crutch of burn amputee |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810683940.3A CN109044745A (en) | 2018-06-28 | 2018-06-28 | A kind of ultralight crutch of burn amputee |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109044745A true CN109044745A (en) | 2018-12-21 |
Family
ID=64818168
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|---|---|---|---|
| CN201810683940.3A Pending CN109044745A (en) | 2018-06-28 | 2018-06-28 | A kind of ultralight crutch of burn amputee |
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Address after: 100048 Beijing city Haidian District Fuchengmen Road No. 51 Applicant after: Fourth Medical Center, General Hospital of the Chinese PLA Address before: 100048 Beijing city Haidian District Fuchengmen Road No. 51 Applicant before: THE FIRST AFFILIATED HOSPITAL,CHINESE PLA GENERAL Hospital |
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Application publication date: 20181221 |