CN103767832A - Multifunctional stretcher - Google Patents
Multifunctional stretcher Download PDFInfo
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- CN103767832A CN103767832A CN201410021748.XA CN201410021748A CN103767832A CN 103767832 A CN103767832 A CN 103767832A CN 201410021748 A CN201410021748 A CN 201410021748A CN 103767832 A CN103767832 A CN 103767832A
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- backrest
- hack lever
- intermediate bar
- dwang
- piece
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Abstract
The invention provides a multifunctional stretcher which comprises a middle pole (1) and transverse connecting rods (5) and is characterized in that one end of the middle rod (1) is connected with one end of the a front rack rod (3) by virtue of a front rack angle adjuster (7); the other end of the middle rod (1) is connected with one end of a rear rack rod (4) by virtue of a reducing connecting sleeve (8); the left and right branches of the middle rod (1) are respectively provided with a backrest angle adjuster (6); the rotating ends of the backrest angle adjusters (6) are provided with backrest rotating rods (2); the left and right branches of the backrest rotating rods (2), the front rack rod (3) and the rear rack rod (4) are respectively and fixedly provided with transverse connecting rods (5). The multifunctional stretcher is reasonable in structure, comprehensive in function, small in occupied space, high in stability and adjustability, can be used for achieving a more comfortable transfer and rescue effect on the premise of reducing secondary injury of a wounded person as much as possible, and is convenient to large-scale popularization and use.
Description
Technical field
The present invention relates to a kind of stretcher, relate in particular to a kind of multifunctional stretcher, belong to rescue aid technical field.
Background technology
Disaster took place frequently in recent years, and particularly earthquake, mine disaster, floods, fire are suffered heavy losses people.In sudden disaster, for rescuing, barrier-breaking, the engineering goods of escaping, taking refuge more and more receive people's concern, how to rescue lives and properties within the shortest time, how extent of injury is dropped to minimumly, be the emphasis that people study always.
Stretcher is one of the most frequently used rescue rescue tool, in some special occasions, as: mountain area, high building, the use of common stretcher is usually restricted, and brings inconvenience to the work of suing and labouring, and operator's improper use is easy to make wounded's secondary injured.Existing stretcher can not be adjusted according to the wounded's concrete traumatic condition the angle of stretcher mostly, and can not, according to suing and labouring environment and need to assembling, be not easy to dismounting and regulate length, uses and has been subject to certain restriction.
As China Patent Publication No.: CN 202537797U, open day: the utility model patent on November 21st, 2012 discloses a kind of multifunctional stretcher, comprise stretcher handle, panel, panel connector, panel fixing device, cradling piece, fixing bandage and reverse side braces, on four angles of stretcher, be respectively provided with a handle, panel always has three, between panel and panel, be connected and be fixed together by panel connector and panel fixing device, panel connector and panel fixing device are all fixed on cradling piece, and fixing bandage is positioned at panel surface.But this apparatus structure is simple, do not there is angle regulating function, comfortableness is poor, and this device can not carry out dismounting to adapt to different length and function, uses inconveniently, is not easy to large-scale promotion and uses.
Summary of the invention
The object of the invention is for existing rescue stretcher simple in structure, do not there is angle regulating function, comfortableness is poor, can not carry out dismounting to adapt to different length and function, the defect that versatility is not good and deficiency, provide a kind of rational in infrastructure, have angle regulating function, the comfortableness that the sick and wounded use is good, and can carry out dismounting to adapt to different length and function, versatility is good, uses a kind of multifunctional stretcher very easily.
For achieving the above object, technical solution of the present invention is: a kind of multifunctional stretcher, comprise intermediate bar and horizontal connecting rod, one end of described intermediate bar is connected with one end of front hack lever by side arm angle demodulator, the other end of intermediate bar is connected with one end of rear hack lever by reducing adapter sleeve, on two of the left and right of intermediate bar, be separately installed with backrest angle actuator, the rotation end of backrest angle actuator is provided with backrest dwang, backrest dwang, between two of the left and right of front hack lever and rear hack lever, be fixed with respectively horizontal connecting rod, intermediate bar, backrest dwang, and in the region between two, be respectively arranged with stretcher cloth about front hack lever.
Described backrest angle actuator and side arm angle demodulator comprise respectively: actuator body frame, hexagonal lid, screw-in piece, tooth piece, bay and turning cylinder, on actuator body frame, offer axis hole, turning cylinder is installed in axis hole, the side opening of actuator body frame is provided with fork-shaped mouth, the bay matching with turning cylinder is installed in fork-shaped mouth, the upper and lower surface of bay is provided with tooth, tooth piece is meshed with the tooth in bay, on the inner ring of tooth piece, be also provided with screw-in piece, the outer face that screws in piece and tooth piece is fixed by hexagonal lid.
Described reducing adapter sleeve is made up of one group of primary and secondary drill holder, between mother set and sub-set, matches by No. 3 conical surfaces of Mohs, and one end of mother set is provided with the groove of a release.
The outboard end of described front hack lever and rear hack lever is separately installed with handle, and the arranged outside of intermediate bar has external handle.
On described intermediate bar, backrest dwang or front hack lever, be provided with the fixing wounded's fixing bandage.
The bottom of described front hack lever and rear hack lever is separately installed with pulley.
Described intermediate bar, backrest dwang, front hack lever, rear hack lever, horizontal connecting rod and tooth piece all adopt glass fiber reinforced nylon material to make.
In the backrest bottom rear that described backrest dwang and stretcher cloth form, be provided with the rear haversack that can place rescue medicine or utensil.
The invention has the beneficial effects as follows:
1. stretcher main body of the present invention adopts the multistage formula structure that is connected, reduce parking space, stretcher can be according to suing and labouring environment and need to assembling, to arrive different length and function, conveniently in some small spaces, use, on stretcher, be provided with backrest angle actuator and side arm angle demodulator simultaneously, regulate the angle of backrest by backrest angle actuator, regulate the angle of front hack lever by side arm angle demodulator, make the sick and wounded's shank can be bent downwardly certain angle, be conducive to improve the comfortableness of the sick and wounded on stretcher.
2. between rod member of the present invention, adopt reducing adapter sleeve to connect, adopt the taper fit of primary and secondary drill holder to improve the reliability connecting, in the time that needs are dismantled, use professional tool to stir flat side and just can make rod member sharp separation, dismantle and assemble efficient and convenient simultaneously.
3. the present invention is rational in infrastructure, multiple functional, takes up room little, and the stability of stretcher and performance-adjustable are very high, when rescue reduce as far as possible the wounded by the prerequisite of secondary injury under, reached more comfortable transfer and rescue effect, be convenient to large-scale promotion and use.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of main body rod member of the present invention.
Fig. 3 is the schematic diagram after hack lever rise after the present invention.
Fig. 4 is the three-dimensional structure diagram of actuator body frame of the present invention.
Fig. 5 is the front view of actuator body frame of the present invention.
Fig. 6 is the cutaway view of A-A in Fig. 5.
Fig. 7 is the three-dimensional structure diagram of actuator body frame of the present invention.
Fig. 8 is the front view of actuator body frame of the present invention.
Fig. 9 is the cutaway view of B-B in Fig. 8.
Figure 10 is the structural representation of reducing adapter sleeve of the present invention.
Figure 11 is the profile schematic diagram after Fig. 4 and Fig. 7 assembling.
Figure 12 is the front front view of Figure 11.
Figure 13 is the cutaway view of C-C in Figure 12.
In figure: intermediate bar 1, backrest dwang 2, front hack lever 3, rear hack lever 4, laterally connecting rod 5, backrest angle actuator 6, side arm angle demodulator 7, reducing adapter sleeve 8, stretcher cloth 9, handle 10, pulley 11, actuator body frame 12, hexagonal lid 13, screws in piece 14, tooth piece 15, bay 16, turning cylinder 17, external handle 18.
The specific embodiment
Below in conjunction with accompanying drawing explanation and the specific embodiment, the present invention is described in further detail.
Referring to Fig. 1 to Figure 13, a kind of multifunctional stretcher of the present invention, comprise intermediate bar 1 and horizontal connecting rod 5, one end of described intermediate bar 1 is connected with one end of front hack lever 3 by side arm angle demodulator 7, the other end of intermediate bar 1 is connected with one end of rear hack lever 4 by reducing adapter sleeve 8, on two of the left and right of intermediate bar 1, be separately installed with backrest angle actuator 6, the rotation end of backrest angle actuator 6 is provided with backrest dwang 2, backrest dwang 2, between two of the left and right of front hack lever 3 and rear hack lever 4, be fixed with respectively horizontal connecting rod 5, intermediate bar 1, backrest dwang 2, and be respectively arranged with stretcher cloth 9 in region between two of front hack lever 3 left and right.
Described backrest angle actuator 6 and side arm angle demodulator 7 comprise respectively: actuator body frame 12, hexagonal lid 13, screw in piece 14, tooth piece 15, bay 16 and turning cylinder 17, on actuator body frame 12, offer axis hole, turning cylinder 17 is installed in axis hole, the side opening of actuator body frame 12 is provided with fork-shaped mouth, the bay 16 matching with turning cylinder 17 is installed in fork-shaped mouth, the upper and lower surface of bay 16 is provided with tooth, tooth piece 15 is meshed with the tooth in bay 16, on the inner ring of tooth piece 15, be also provided with and screw in piece 14, the outer face that screws in piece 14 and tooth piece 15 is fixed by hexagonal lid 13.
Described reducing adapter sleeve 8 is made up of one group of primary and secondary drill holder, between mother set and sub-set, matches by No. 3 conical surfaces of Mohs, and one end of mother set is provided with the groove of a release.
The outboard end of described front hack lever 3 and rear hack lever 4 is separately installed with handle 10, and the arranged outside of intermediate bar 1 has external handle 18.
On described intermediate bar 1, backrest dwang 2 or front hack lever 3, be provided with the fixing wounded's fixing bandage.
The bottom of described front hack lever 3 and rear hack lever 4 is separately installed with pulley 11.
Described intermediate bar 1, backrest dwang 2, front hack lever 3, rear hack lever 4, horizontal connecting rod 5 and tooth piece 15 all adopt glass fiber reinforced nylon material to make.
In the backrest bottom rear that described backrest dwang 2 and stretcher cloth 9 form, be provided with the rear haversack that can place rescue medicine or utensil.
Referring to Fig. 1 to Fig. 3, the main body rod member of stretcher body is mainly made up of intermediate bar 1, backrest dwang 2, front hack lever 3, rear hack lever 4, horizontal connecting rod 5, intermediate bar 1, backrest dwang 2, front hack lever 3, rear hack lever 4 and horizontal connecting rod 5 all adopt glass fiber reinforced nylon material to make, intensity is high, lightweight, wear-resistant.Intermediate bar 1 is positioned at the middle part of stretcher body, and one end of intermediate bar 1 is connected with one end of front hack lever 3 by side arm angle demodulator 7, and the other end of intermediate bar 1 is connected with one end of rear hack lever 4 by reducing adapter sleeve 8.Front hack lever 3 can rotate certain angle downwards under the regulating action of side arm angle demodulator 7, makes the sick and wounded's shank can be bent downwardly certain angle, is conducive to improve the comfortableness of the sick and wounded on stretcher.On two of the left and right of intermediate bar 1, be separately installed with backrest angle actuator 6, the rotation end of backrest angle actuator 6 is provided with backrest dwang 2, and backrest dwang 2 is two of left and right, between two backrest dwangs 2, is fixedly connected with by horizontal connecting rod 5.Backrest dwang 2 can turn an angle on axially take backrest angle actuator 6 under the effect of backrest angle actuator 6, has formed the structure that is similar to chaise longue.
The outboard end of front hack lever 3 and rear hack lever 4 is separately installed with handle 10, and handle 10 is Demountable.The outside of intermediate bar 1 is also provided with external handle 18, and in the time that stretcher uses as chaise longue, external handle 18 can be served as handrail and used, the side point of application that external handle 18 can also be when carrying a stretcher.Between two of the left and right of backrest dwang 2, front hack lever 3 and rear hack lever 4, be fixed with respectively horizontal connecting rod 5, in region between two of intermediate bar 1, backrest dwang 2 and front hack lever 3 left and right, be respectively arranged with stretcher cloth 9, stretcher cloth 9 is by being adhesively fixed band or be fixed on intermediate bar 1, backrest dwang 2, front hack lever 3 and laterally on connecting rod 5 with the fixing band of snap-fastener.For the ease of placing rescue medicine or utensil, haversack after being provided with in the backrest bottom rear forming at backrest dwang 2 and stretcher cloth 9.On intermediate bar 1, backrest dwang 2 or front hack lever 3, be also provided with the fixing wounded's fixing bandage.
Referring to Fig. 4 to Fig. 9, backrest angle actuator 6 is identical with the structure of side arm angle demodulator 7, comprising: actuator body frame 12, hexagonal lid 13, screw-in piece 14, tooth piece 15, bay 16 and turning cylinder 17.On actuator body frame 12, offer axis hole, turning cylinder 17 is installed in axis hole, and the side opening of actuator body frame 12 is provided with fork-shaped mouth, and the bay 16 matching with turning cylinder 17 is installed in fork-shaped mouth, the upper and lower surface of bay 16 is provided with tooth, and tooth piece 15 is meshed with the tooth in bay 16.Screw in piece 14 and be positioned on the inner ring of tooth piece 15, hexagonal lid 13 plays fixation in the outer end that screws in piece 14 and tooth piece 15.Backrest angle actuator 6 and side arm angle demodulator 7 design on the basis of jaw clutch principle, control the motion of tooth piece 15 by the rotation of Hexagonal jacket, screw in piece 14 and make tooth piece 15 on fixing track route, do rectilinear motion by threads turn.
Intensity to tooth piece 15 is calculated as follows: suppose backrest holding capacity F=700N, the power f that each tooth bears, can obtain thus: Fx450=fx12x40 solves f=656 N.
1, check the shear strength of tooth engagement
The maximum shear area that groove and tooth are caught generation is mutually
The allowable tensile stress of No. 45 steel is: σ s=360 Mpa
[σ]=?σo?/n
σ o=σ s, n=1.5-2.0, capping n=2.0.[τ] again=(0.6-0.8) [σ], for safety, coefficient removes the limit 0.6, thus [τ]=0.6x360/2.0=108 Mpa,
: τ=f/S=656/26.2=25Mpa, τ <[τ], so material satisfies the demands.
2, check the crushing strength of tooth engagement
The squish area of groove and tooth:
Crushing strength allowable: [σ] jy=(1.7-2.0) [σ]=301Mpa
Crushing strength σ jy=f/A=656/12=54.7Mpa, crushing strength is enough.
In sum, glass fiber reinforced nylon 6 (PA6G45) meets requirement of strength.
Reducing adapter sleeve 8 is made up of one group of primary and secondary drill holder, referring to Figure 10, between mother set and sub-set, matches by No. 3 conical surfaces of Mohs, and one end of mother set is provided with the groove of a release.Use in use professional tool to stir flat side and just can make rod member sharp separation, due to reducing adapter sleeve 8 adopt be standard taper coordinate, so stretcher can be as required, be assembled into the stretcher of different length and function.For stretcher can be slided in ground grading, be separately installed with pulley 11 in the bottom of front hack lever 3 and rear hack lever 4.
Controllability of the present invention is good, there is good human oriented design, can adjust according to the wounded's concrete traumatic condition the angle of stretcher, reduce as far as possible the wounded by the prerequisite of secondary injury under, reach more comfortable transfer and rescue effect, have the place on certain slope at slope stair etc., the people who carries a stretcher can the better application of force, has facilitated rescue.Simultaneously stretcher can be according to suing and labouring environment and need to assembling, and to arrive different length and function, conveniently in some small spaces, uses, and dismounting flexibly, leave in supporting workbox, reduce parking space, easy to use, be convenient to large-scale promotion and use.
Claims (8)
1. a multifunctional stretcher, comprise intermediate bar (1) and horizontal connecting rod (5), it is characterized in that: one end of described intermediate bar (1) is connected with one end of front hack lever (3) by side arm angle demodulator (7), the other end of intermediate bar (1) is connected with one end of rear hack lever (4) by reducing adapter sleeve (8), on two of the left and right of intermediate bar (1), be separately installed with backrest angle actuator (6), the rotation end of backrest angle actuator (6) is provided with backrest dwang (2), backrest dwang (2), between two of the left and right of front hack lever (3) and rear hack lever (4), be fixed with respectively horizontal connecting rod (5), intermediate bar (1), backrest dwang (2), and in the region between two, be respectively arranged with stretcher cloth (9) about front hack lever (3).
2. a kind of multifunctional stretcher according to claim 1, it is characterized in that: described backrest angle actuator (6) and side arm angle demodulator (7) comprise respectively: actuator body frame (12), hexagonal lid (13), screw in piece (14), tooth piece (15), bay (16) and turning cylinder (17), actuator body frame offers axis hole on (12), turning cylinder (17) is installed in axis hole, the side opening of actuator body frame (12) is provided with fork-shaped mouth, the bay (16) matching with turning cylinder (17) is installed in fork-shaped mouth, the upper and lower surface of bay (16) is provided with tooth, tooth piece (15) is meshed with the tooth in bay (16), on the inner ring of tooth piece (15), be also provided with and screw in piece (14), the outer face that screws in piece (14) and tooth piece (15) is fixed by hexagonal lid (13).
3. a kind of multifunctional stretcher according to claim 1, is characterized in that: described reducing adapter sleeve (8) is made up of one group of primary and secondary drill holder, between mother set and sub-set, matches by No. 3 conical surfaces of Mohs, and one end of mother set is provided with the groove of a release.
4. a kind of multifunctional stretcher according to claim 1, is characterized in that: the outboard end of described front hack lever (3) and rear hack lever (4) is separately installed with handle (10), and the arranged outside of intermediate bar (1) has external handle (18).
5. a kind of multifunctional stretcher according to claim 1, is characterized in that: the fixing bandage that is provided with the fixing wounded on described intermediate bar (1), backrest dwang (2) or front hack lever (3).
6. a kind of multifunctional stretcher according to claim 1, is characterized in that: the bottom of described front hack lever (3) and rear hack lever (4) is separately installed with pulley (11).
7. a kind of multifunctional stretcher according to claim 1, is characterized in that: described intermediate bar (1), backrest dwang (2), front hack lever (3), rear hack lever (4), horizontal connecting rod (5) and tooth piece (15) all adopt glass fiber reinforced nylon material to make.
8. a kind of multifunctional stretcher according to claim 1, is characterized in that: in the backrest bottom rear that described backrest dwang (2) and stretcher cloth (9) form, be provided with the rear haversack that can place rescue medicine or utensil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021748.XA CN103767832B (en) | 2014-01-17 | 2014-01-17 | A kind of multifunctional stretcher |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410021748.XA CN103767832B (en) | 2014-01-17 | 2014-01-17 | A kind of multifunctional stretcher |
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| CN103767832A true CN103767832A (en) | 2014-05-07 |
| CN103767832B CN103767832B (en) | 2016-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040219A (en) * | 2019-05-23 | 2019-07-23 | 王路才 | Stretcher type emergency escape device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0326350A (en) * | 1989-06-26 | 1991-02-04 | Canon Inc | Collision type air grinder |
| JPH09103980A (en) * | 1995-10-03 | 1997-04-22 | Kondo Seisakusho:Kk | Turret chuck |
| CN201624892U (en) * | 2010-04-04 | 2010-11-10 | 吕魏峰 | Folding hard-board stretcher |
| CN201684092U (en) * | 2010-05-13 | 2010-12-29 | 中国人民解放军军事医学科学院卫生装备研究所 | Backpack-type foldable emergency treatment stretcher |
| CN102579203A (en) * | 2011-01-07 | 2012-07-18 | 河北三淼抢险救援设备制造有限公司 | Rotary folding stretcher |
| CN203693914U (en) * | 2014-01-17 | 2014-07-09 | 国家电网公司 | Multifunctional stretcher |
-
2014
- 2014-01-17 CN CN201410021748.XA patent/CN103767832B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0326350A (en) * | 1989-06-26 | 1991-02-04 | Canon Inc | Collision type air grinder |
| JPH09103980A (en) * | 1995-10-03 | 1997-04-22 | Kondo Seisakusho:Kk | Turret chuck |
| CN201624892U (en) * | 2010-04-04 | 2010-11-10 | 吕魏峰 | Folding hard-board stretcher |
| CN201684092U (en) * | 2010-05-13 | 2010-12-29 | 中国人民解放军军事医学科学院卫生装备研究所 | Backpack-type foldable emergency treatment stretcher |
| CN102579203A (en) * | 2011-01-07 | 2012-07-18 | 河北三淼抢险救援设备制造有限公司 | Rotary folding stretcher |
| CN203693914U (en) * | 2014-01-17 | 2014-07-09 | 国家电网公司 | Multifunctional stretcher |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040219A (en) * | 2019-05-23 | 2019-07-23 | 王路才 | Stretcher type emergency escape device |
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| CN103767832B (en) | 2016-09-21 |
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