CN210749877U - Eight-wheel ambulance stretcher cart - Google Patents
Eight-wheel ambulance stretcher cart Download PDFInfo
- Publication number
- CN210749877U CN210749877U CN201921221517.8U CN201921221517U CN210749877U CN 210749877 U CN210749877 U CN 210749877U CN 201921221517 U CN201921221517 U CN 201921221517U CN 210749877 U CN210749877 U CN 210749877U
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- China
- Prior art keywords
- swing arm
- stretcher
- chassis
- pneumatic cylinder
- flexible
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- 238000013016 damping Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 230000006378 damage Effects 0.000 abstract description 8
- 208000027418 Wounds and injury Diseases 0.000 abstract description 6
- 208000014674 injury Diseases 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 230000035939 shock Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model provides an eight rounds of rescue stretcher shallow, including the stretcher, and the chassis of connecting with the stretcher, the bottom of stretcher is adjusted pneumatic cylinder and chassis by four stretchers and is connected together, four wheels that take flexible swing arm to support have respectively been installed to the both sides on chassis, flexible swing arm is connected together through the decelerator who installs on the chassis, and set up circumference damping device between flexible swing arm and decelerator, flexible swing arm uses the swing arm pneumatic cylinder as the main tributary support arm, support the wheel as auxiliary support arm with two follower levers of the both sides of swing arm pneumatic cylinder, decelerator passes through the rotation realization of motor to the swing of flexible swing arm, extend through the swing arm pneumatic cylinder, make flexible swing arm extension, with this lifting chassis height. The utility model discloses can make it can steadily shift wounded under complicated road surface environment, reduce wounded's secondary injury's possibility, adjust the pneumatic cylinder through the stretcher, can guarantee that rescue stretcher shallow also can keep the level when the slope, realize wounded's steady transfer.
Description
Technical Field
The utility model relates to a stretcher shallow technical field especially relates to an eight rounds of rescue stretcher shallow.
Background
People often suffer injuries or sudden illness in daily life, need to be sent to a hospital for treatment in an emergency, and often need to transfer the wounded to a safe place or into an ambulance for emergency treatment through an ambulance stretcher cart.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the eight rounds of rescue stretcher shallow of proposing, adopt to combine together traditional manual rescue stretcher and hydraulic pressure lift, cooperate nimble flexible swing arm wheel system, make it can steadily shift the wounded under complicated road surface environment, reduce the possibility of wounded's secondary injury, and then be convenient for rescue better, alleviate the burden of the worker of suing and labouring.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an eight rounds of rescue stretcher shallow, includes stretcher, reaches the chassis of being connected with the stretcher, its characterized in that: the stretcher, its bottom is adjusted the pneumatic cylinder by four stretchers and is connected together with the chassis, its both sides have respectively installed four wheels that take flexible swing arm to support, flexible swing arm is connected together through the decelerator who installs on the chassis, and has set up circumference damping device between flexible swing arm and decelerator, flexible swing arm to the swing arm pneumatic cylinder is the main tributary brace arm, two follower levers of the both sides of swing arm pneumatic cylinder are as auxiliary stay arm support wheel, decelerator passes through the rotation of motor and realizes the swing to flexible swing arm, changes the angle of flexible swing arm, through the extension of swing arm pneumatic cylinder, makes flexible swing arm extension to this lifting chassis height.
Preferably, the upper portion of the follower rod is connected with the upper connecting piece of the telescopic swing arm, the follower rod is hollow inside and is connected with an inner loop bar which is internally provided with a connecting spring and is connected with the lower connecting piece, the inner loop bar compresses the connecting spring in the follower rod according to the telescopic condition of the swing arm hydraulic cylinder, so that the two follower rods and the swing arm hydraulic cylinder keep synchronous telescopic, the follower rod and the inner loop bar are used as auxiliary supports of wheels to enable the ambulance stretcher cart to be more stable and stable, meanwhile, the connecting spring in the follower rod has certain shock absorption on the shock generated by the wheels, and the possibility of secondary damage of a wounded person on the stretcher in the moving process is avoided.
Preferably, the circumferential damping device comprises a circumferential wheel, a damping spring and a bearing, wherein the damping spring is arranged inside the circumferential wheel and is uniformly distributed around the bearing, and the vibration generated in the wheel walking process is absorbed by the damping spring around the bearing through the transmission of the bearing, so that the vibration acting on the chassis is greatly reduced.
Preferably, the chassis further comprises a chassis lifting mechanism connected to the chassis, a placing table of the chassis lifting mechanism is fixed on the chassis through a support rod, and four lifting hydraulic cylinders are mounted on four sides of the placing table. When the ambulance stretcher cart stops or needs to temporarily perform treatment on the ambulance stretcher cart, the four lifting hydraulic cylinders of the chassis lifting mechanism are lowered, the lifting hydraulic cylinders are adjusted according to different lengths of the telescopic ground of different levels, so that the cart is kept in a horizontal state, the supporting plate of the chassis lifting mechanism is used as a support of the ambulance stretcher cart, meanwhile, the wheels can be clamped by the supporting plate, the wheels are prevented from sliding under the action of external force, the placement table can directly support the chassis through the supporting rod, so that the chassis and the placement table are kept in a horizontal state, the placement table is used, when the cart stops moving for temporarily rescuing wounded persons, the stretcher is adjusted by the stretcher adjusting hydraulic cylinder, the stretcher is conveniently placed on the placement table, and the stretcher is stable.
Preferably, the speed reducer internally adopts a structural form of a worm gear and a worm, so that the rotation generated by the output shaft of the motor is reduced, and the rotation direction of the output shaft of the speed reducer is changed, thereby realizing the swing of the motor to the telescopic swing arm.
Preferably, the telescopic swing arm can swing by 0 to 60 degrees relative to two sides of a gravity center line on the telescopic swing arm surface. In the swinging process of the motor to the telescopic swing arm, the angle generated by the telescopic swing arm is changed, so that the telescopic swing arm can lift or descend the ambulance stretcher cart.
The four stretcher adjusting hydraulic cylinders at the bottom of the stretcher can adjust the angles through the four stretcher adjusting hydraulic cylinders according to the movement of the trolley and different lifting heights so as to achieve the level stability of the trolley in order to prevent the stretcher from inclining in the moving process of the ambulance stretcher cart; in the process of stopping the ambulance stretcher cart, the height of the four stretcher adjusting hydraulic cylinders is reduced, so that the stretcher is directly placed on the placing table and is stable; when the wounded need be shifted on the stretcher, also can adjust the height of pneumatic cylinder through adjusting the stretcher, realize wounded's steady transfer.
Compared with the prior ambulance stretcher cart, the utility model has the advantages that:
(1) the telescopic swing arm and the bottom plate lifting mechanism of the wheels can enable the wheels to stably transfer wounded persons under the environment of a complex road surface, and the possibility of secondary injury of the wounded persons is reduced.
(2) The hydraulic cylinder is adjusted through the stretcher, so that the stretcher trolley can be kept horizontal when inclined, and the wounded person can be stably transferred by adjusting the height of the hydraulic cylinder through the adjusting stretcher.
Drawings
Fig. 1 is a schematic perspective view of an eight-wheeled ambulance stretcher with a cart.
Fig. 2 is a schematic view of a telescopic swing arm.
Fig. 3 is an internal sectional view of fig. 2.
Fig. 4 is a partially enlarged view of a in fig. 1.
Fig. 5 is a partially enlarged view of B in fig. 2.
Fig. 6 is a perspective view of the circumferential damping device.
Fig. 7 is a schematic angle diagram of the swing of the telescopic swing arm.
In the figure: 1-stretcher, 101-handrail, 102-bandage, 2-stretcher adjusting hydraulic cylinder, 3-chassis lifting mechanism, 301-rest, 302-lifting hydraulic cylinder, 303-support plate, 304-support rod, 4-motor, 5-speed reducer, 6-telescopic swing arm, 601-upper connecting piece, 602-swing arm hydraulic cylinder, 603-follower rod, 604-inner loop rod, 605-lower connecting piece, 606-connecting spring, 7-wheel, 8-circumferential damping device, 801-circumferential wheel, 802-damping spring, 803-bearing and 9-chassis.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Referring to fig. 1, an eight rounds of rescue stretcher shallow, including stretcher 1, chassis 9, stretcher 1 be provided with bandage 102, it is fixed that convenient tie up wounded, stretcher 1 has set up a plurality of handrails 101 all around, it uses as ambulance personnel's shallow of shaking hands, stretcher 1's bottom is adjusted hydraulic cylinder 2 and chassis 9 by four stretchers and is connected together, four wheels 7 that take flexible swing arm 6 to support have respectively been installed to chassis 9's both sides, flexible swing arm 6 links together through balance shaft and circumference damping device 8 and decelerator 5, damping device 5 passes through motor 4 and drives, the realization is to the swing arm of flexible swing arm 6, change the angle of flexible swing arm 6, extend through swing arm hydraulic cylinder 602, make flexible swing arm 6 extend, with the height of this lifting chassis 9.
As a preferred embodiment, the present invention provides a cart for ambulance, when the cart for ambulance is stopped or temporarily performing a rescue operation on the cart for ambulance, using the chassis lifting mechanism 3 installed on the chassis 9 of the cart for ambulance, wherein the hydraulic lifting cylinder 302 extends out of the ground, the supporting plate 303 of the chassis lifting mechanism 3 can be used as a support for the cart for ambulance, and the supporting plate 303 can block the wheels 7 to prevent the wheels 7 from sliding under the external force, so that the cart can be kept in a horizontal state, and the placing table 301 can be used to facilitate the stretcher 1 to be placed on the placing table 301 for medical care personnel to perform a rescue operation, and the hydraulic lifting cylinder 302 can be adjusted according to different lengths of ground with different levels for extension and retraction, thereby ensuring the cart for ambulance to be stable and horizontal.
As a preferred mode of implementation, the utility model discloses, the dual shock attenuation mode of shock attenuation that has set up circumference damping device 8 and flexible swing arm 6 on ambulance stretcher shallow guarantees that ambulance stretcher shallow is guaranteeing steadily at the in-process that removes, avoids vibrations. Referring to fig. 2, 3 and 5, the telescopic swing arm 6 includes a swing arm hydraulic cylinder 602, follower rods 603 at both sides, upper connectors 601 and lower connectors 605 at both ends, the upper connectors 601 are connected with the speed reducer 5 through a shaft, the lower connectors 605 are connected with the wheels 7, the follower rods 603 are hollow and connected with the upper connectors 601, a connecting spring 606 is installed inside the follower rods 603 and connected with an inner sleeve rod 604 on the lower connector 605, the inner sleeve rod 604 compresses the connecting spring 606 in the follower rods 603 according to the telescopic condition of the swing arm hydraulic cylinder 602, so that the two follower rods 603 and the swing arm hydraulic cylinder 602 keep synchronous extension and retraction, the follower rods 603 and the inner loop bar 604 are used as auxiliary supports of the wheels 7 to ensure that the ambulance stretcher cart is more stable and stable, meanwhile, the connecting spring 606 in the follower rod 603 has certain shock absorption for the vibration generated by the wheels 7, thereby avoiding the possibility of secondary injury of the wounded on the stretcher 1 in the moving process.
Referring to fig. 6, the circumferential damping device 8 comprises a circumferential wheel 801, a damping spring 802 and a bearing 803, the damping spring 802 is uniformly distributed around the bearing 803, and the bearing 803 can effectively damp vibration transmitted by the output shaft of the speed reducer 5, so that the vibration of the output shaft is prevented from affecting the stability of the ambulance stretcher cart, and meanwhile, the damage of the vibration to the motor 4 can be reduced, which is beneficial to prolonging the service life of the motor 4.
Referring to fig. 7, the utility model discloses, motor 4 is to the swing of flexible swing arm 6, the wobbling angle can be swung the swing of the dead center line both sides angle 0 to 60 degrees on the swing arm face, motor 4 is to the swing in-process of flexible swing arm 6, the angle that flexible swing arm 6 produced has produced the change, thereby realize flexible swing arm 6 to ambulance stretcher shallow lifting or decline, of course, motor 4 is to the control of flexible swing arm 6, can implement the control to flexible swing arm 6 through the installation angle encoder, the angle encoder produces control signal according to the change of measuring angle and controls the operation to motor 4.
As a preferred implementation mode, in the moving process of the ambulance stretcher cart, in order to prevent the stretcher 1 from inclining, the stretcher adjusting hydraulic cylinder 2 of the present invention can adjust different elevation height adjusting angles of the hydraulic cylinder 2 through four stretchers according to the movement of the trolley, so as to achieve the level stability of the trolley; in the process of stopping the ambulance stretcher cart, the height of the four stretcher adjusting hydraulic cylinders 2 is reduced, so that the stretcher 1 is directly placed on the placing table 301, and the stretcher 1 is stable; when the wounded need to be transferred to the stretcher 1, the height of the hydraulic cylinder 2 can be adjusted by adjusting the stretcher, so that the wounded can be stably transferred.
The utility model relates to a concrete structure of implementing, select eight round structures, be by the length and the width decision of stretcher 1, the length and the width of stretcher 1 are according to human size design, according to human size, propose a specific stretcher 1 size length 2 meters, wide 1 meters's structure, be fit for the requirement of most colony height, stronger commonality has, therefore, the length and the width of stretcher 1 have decided to use eight wheels 7 most suitable, the distribution of eight wheels 7 can be just right, neither can lead to the atress unbalance because too little, also can too many and too bloated because of too much, and wheel type structure is compared other leg formulas and other structures such as combined type simpler, it is more convenient and the ability of crossing over the obstacle is good.
The utility model discloses a connection structure, the dual shock attenuation setting of the flexible swing arm 6 of wheel 7 and the special construction of stretcher adjusting cylinder 2, chassis elevating system 3 make the utility model discloses can pass through motor 4 and the flexible posture of controlling each wheel 7 of flexible swing arm 6 with this through different obstacle environment, ensure to advance in-process rescue stretcher 1 and be in the horizontality, be in steady state when having avoided the car to remove and stop, avoid vibrations, road conditions inequality to cause the secondary injury to the wounded.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides an eight rounds of rescue stretcher shallow, includes stretcher, reaches the chassis of being connected with the stretcher, its characterized in that: the stretcher, its bottom is adjusted the pneumatic cylinder by four stretchers and is connected together with the chassis, its both sides have respectively installed four wheels that take flexible swing arm to support, flexible swing arm is connected together through the decelerator who installs on the chassis, and has set up circumference damping device between flexible swing arm and decelerator, flexible swing arm to the swing arm pneumatic cylinder is the main tributary brace arm, uses two follower levers of the both sides of swing arm pneumatic cylinder as auxiliary stay arm support wheel, decelerator passes through the rotation of motor and realizes the swing to flexible swing arm, through the extension of swing arm pneumatic cylinder for flexible swing arm extension, with this lifting chassis height.
2. The eight-wheeled ambulance stretcher cart according to claim 1, characterized in that: the upper part of the follower rod is connected with the upper connecting piece of the telescopic swing arm, the interior of the follower rod is hollow, and a connecting spring is arranged in the follower rod and connected with the inner loop bar on the lower connecting piece.
3. The eight-wheeled ambulance stretcher cart according to claim 1, characterized in that: the circumferential damping device comprises a circumferential wheel, damping springs and bearings, wherein the damping springs are arranged inside the circumferential wheel and are uniformly distributed around the bearings.
4. The eight-wheeled ambulance stretcher cart according to claim 1, characterized in that: the chassis also comprises a chassis lifting mechanism connected to the chassis.
5. The eight-wheeled ambulance stretcher cart according to claim 4, characterized in that: the placing table of the chassis lifting mechanism is fixed on the chassis through a support rod.
6. The eight-wheeled ambulance stretcher cart according to claim 5, characterized in that: four lifting hydraulic cylinders are arranged on four sides of the placing table.
7. The eight-wheeled ambulance stretcher cart according to claim 1, characterized in that: the speed reducer is internally in a structural form of a worm gear and a worm, so that the rotation generated by the output shaft of the motor is reduced, and the rotation direction of the output shaft of the speed reducer is changed.
8. The eight-wheeled ambulance stretcher cart according to claim 1, characterized in that: the telescopic swing arm can swing by 0 to 60 degrees relative to the two sides of the central line on the telescopic swing arm surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221517.8U CN210749877U (en) | 2019-07-30 | 2019-07-30 | Eight-wheel ambulance stretcher cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221517.8U CN210749877U (en) | 2019-07-30 | 2019-07-30 | Eight-wheel ambulance stretcher cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210749877U true CN210749877U (en) | 2020-06-16 |
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ID=71054105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921221517.8U Expired - Fee Related CN210749877U (en) | 2019-07-30 | 2019-07-30 | Eight-wheel ambulance stretcher cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210749877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974992A (en) * | 2021-11-03 | 2022-01-28 | 吉林大学 | Rescue transfer stretcher suitable for multiple terrains |
-
2019
- 2019-07-30 CN CN201921221517.8U patent/CN210749877U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974992A (en) * | 2021-11-03 | 2022-01-28 | 吉林大学 | Rescue transfer stretcher suitable for multiple terrains |
| CN113974992B (en) * | 2021-11-03 | 2024-05-07 | 吉林大学 | Rescue transfer stretcher suitable for multiple terrains |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 |