CN203280603U

CN203280603U - Stretcher system capable of automatic loading

Info

Publication number: CN203280603U
Application number: CN2013202845215U
Authority: CN
Inventors: 励伟定; 胡朋辉; 陈剑宏
Original assignee: NINGBO CAREFUL SPECAIL CARS Co Ltd
Current assignee: NINGBO CAREFUL SPECAIL CARS Co Ltd
Priority date: 2013-05-23
Filing date: 2013-05-23
Publication date: 2013-11-13
Anticipated expiration: 2023-05-23

Abstract

The utility model discloses a stretcher system capable of automatic loading, which is arranged in a carriage. The stretcher system comprises a stretcher assembly, a connecting rod mechanism and a control system, wherein the connecting rod mechanism swings to enable the stretcher assembly to rotate, ascend, descend, stretch out of or retract to the carriage; the stretcher assembly comprises a stretcher platform and a guide platform; a stretcher is detachably installed on the guide platform which can move back and forth on the stretcher platform; the control system comprises a programmable logic controller, a magnetic valve and a proximity switch, and can control a cylinder to drive the connecting rod mechanism to swing and control a motor to drive the guide platform to move back and forth; a plurality of groups of stretcher systems capable of automatic loading can be arranged in the carriage. The stretcher system has the advantages that the guide platform can be automatically placed outside the carriage, the wounded can be rapidly and safely loaded and unloaded, a stretcher fixer can conveniently fix the stretcher to the guide platform, and the efficiency of conveying the wounded is improved by the multiple groups of stretcher systems.

Description

The automatic getting-on stretcher system

Technical field

This utility model relates to the Medical Transport equipment, relates in particular to a kind of stretcher system of the compartment of automatically stretcher being packed into.

Background technology

ambulance, stretcher is the important equipment of medical first aid, for personnel's medical rescue facilitates and rescue time of saves valuable, the continuous progress with society of improving constantly along with the public health construction, the medical first aid equipment has been proposed new requirement, particularly at ambulance vehicles, the emergency medical equipment, the aspects such as pre hospital care management propose more requirement, the cross-country type ambulance that can adapt at present MODEL OVER COMPLEX TOPOGRAPHY produces, the Unimog UM4000 vehicle of for example running quickly has been applied to military affairs, the civilian disaster relief, shown outstanding superiority, but supporting stretcher with it, in car, the performance of rescue equipment also needs further to improve.In order to improve the transhipment wounded's efficiency, existing rescue equipment has made some improvements, for example the medical bedstead bottom in ambulance installs guide rail additional, can make medical tailstock skid off compartment, again with medical bedstead on stretcher, personnel's platform, but due to the medical bedstead limited length of stretching out compartment, so also need the medical personnel on car to scoop out and stretcher could be carried on car.The another kind of improvement is the stretcher mover of energy lifting, first personnel are carried on the transfer car(buggy) that is covered with stretcher, rely on the lowering or hoisting gear, slideway etc. of transfer car(buggy) that stretcher is sent into compartment after transporting near ambulance, because this class transfer car(buggy) must carry with ambulance, take the space in ambulance, be unfavorable for furnishing again other armarium in compartment.In addition, existing ambulance generally once can only transport two stretchers, has delayed valuable rescue time because carrying capacity is limited when the disaster relief.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the above-mentioned deficiency of prior art and a kind of stretcher system that can automatic boarding is provided, outside the extended ambulance of described stretcher system, and the guide table that will place stretcher moves forward and backward, and configuration control system, can convenient outside car, safe, intelligently load and unload stretcher, improve the transhipment wounded's efficiency.

the technical scheme in the invention for solving the above technical problem is: the automatic getting-on stretcher system, and described stretcher system is arranged in compartment, it is characterized in that, comprises stretcher assembly, linkage and control system, the stretcher assembly comprises stretcher platform, guide table, stretcher, and stretcher is removably mounted on guide table, and guide rail is set on stretcher platform, and guide table, by driven by motor, can move before and after guide rail is on stretcher platform, linkage comprises the front arm base, front arm, rear arm, the rear arm base, and front arm base, front arm, stretcher platform, rear arm, the rear arm base is successively by chain connection, fixing bearing before cylinder on front arm, bearing before cylinder, cylinder, the cylinder rear support is successively by chain connection, bearing before the fixed air spring on rear arm, bearing before air spring, air spring, the air spring rear support is chain connection successively, the front arm base, the cylinder rear support, the rear arm base, the air spring rear support all is fixed in compartment, Telescopic-cylinder can drive front arm and swing and drive stretcher platform and rotate around the rocking arm base, make the lifting of stretcher assembly and stretch out or the retraction compartment, control system comprises that air accumulator, electromagnetic valve, approach switch, motor, Programmable Logic Controller (PLC) and action button form, air accumulator provides power source for cylinder, the break-make of solenoid control gas circuit, approach switch is used for the telescopic location of monitoring guide table position and cylinder, PLC can receive monitoring information and arrange, moves manipulative procedure, action button transmit operation instruction, the duty of electromagnetic valve, motor be can control by action button, PLC, and then the rotation of stretcher platform or moving forward and backward of guide table controlled.

Described stretcher assembly and with it supporting linkage, control system be many groups, form many group automatic getting-on stretcher systems, organize that the automatic getting-on stretcher system superposes up and down or/and left and right is arranged in compartment with arranging more.

The motor that arranges in described stretcher assembly, driving shaft, drivewheel, Timing Belt, driven shaft, driven pulley form transmitting device, driven by motor driving shaft, drivewheel rotate, Timing Belt is rotated around drivewheel, driven pulley, Timing Belt and guide table bottom are fixed by holder, and motor drives transmitting device drive guide table and moves before and after guide rail is on stretcher platform.

Described transmitting device also comprises tension mechanism, tension mechanism is positioned at the driven shaft both sides, driven shaft is connected with the driven shaft connecting rod, connecting rod and screw rod are fixed, screw rod passes the driven pulley holder, relies on the extension elongation of nut adjusting screw(rod), adjusts the distance of driven shaft and holder, change the distance between driven shaft and driving shaft, realize regulating the degree of tightness of Timing Belt.

In described stretcher assembly, motor, gear-box, driving shaft, leading screw are set, gear driven leading screw rotation in the motor-driven gear case, the screw synchronous piece is connected with leading screw, screw synchronous piece and guide table bottom are fixing, the leading screw rotation can drive the screw synchronous piece, and guide table is moved before and after guide rail is on stretcher platform.

The two ends on the top of the guide table of described stretcher assembly arrange respectively front holder and rear holder, front holder is aft-opening draw-in groove, rear fixture belt has hole, and the front bottom end setting of stretcher can snap in the crossbeam of draw-in groove, and the bottom, rear end arranges the column that can insert in hole.

The stretcher front bottom end of described stretcher assembly arranges wheel.

On the stretcher of described stretcher assembly, seat belt is set.

Compared with prior art, the utility model has the advantage of: 1, rely on control system, linkage that the stretcher assembly is rotated around base, rotation time stretcher assembly liftable and stretching out or the retraction compartment, the guide table of stretcher assembly can move forward and backward along stretcher platform, during the loading and unloading wounded, the stretcher assembly stretches out compartment, guide table skids off backward, can outside compartment, the wounded be packed into or unload stretcher system, stretcher system automatically reverts in car again, avoid the personnel in ambulance to scoop out, load and unload convenient, safety; 2, on guide table with the holder of fast demountable stretcher, as long as push-and-pull, lift and put and can fix, stretcher lower device wheel, dismounting is more time saving and energy saving, and seat belt is installed on stretcher, guarantees wounded's safety; 3, adopt cylinder, motor drive link mechanism and guide table, save manpower, and the device air spring makes the linkage operation more steady; 4, control system comprises that Programmable Logic Controller, approach switch, electromagnetic valve etc. can realize intellectualized operation, avoids unexpected and occurs, safe and convenient; 5, in an ambulance compartment, many group automatic getting-on stretcher systems can be installed, can transport simultaneously the several wounded, efficiency is high, and the wounded have saved the valuable time for treatment.

Description of drawings

Fig. 1 is the interior schematic diagram that has assembled many groups automatic getting-on stretcher system.

Fig. 2 is the stretcher assembly of the two groups of stretcher systems in up and down and the structural representation of linkage.

Fig. 3 is the stretcher platform of two groups of stretcher systems and the structural representation of linkage.

Fig. 4 is the structural representation of linkage.

Fig. 5 is the structural representation in the stretcher assembly.

Fig. 6 is the structural representation of the tension mechanism in Fig. 5.

Fig. 7 is the another kind of structural representation in the stretcher assembly.

Fig. 8 is the principle schematic of control system.

Fig. 9 is front holder on guide table and the structural representation of rear holder.

Figure 10 is the structural representation after stretcher is fixed on guide table.

Figure 11 is the stretcher schematic diagram.

In figure: 11, upper stretcher assembly, 12, lower stretcher assembly, 13, stretcher platform, 14, stretcher, 141, wheel, 147, crossbeam, 148, column, 15, seat belt, 16, tension mechanism, 17, holder before stretcher, 18, holder after stretcher; 21, front arm, 22, bearing before cylinder, 23, the front arm base, 24, cylinder, 25, the cylinder rear support; 31, rear arm, 32, air spring, 33, the air spring rear support, 34, the rear arm base, 35, bearing before air spring; 41, guide rail, 42, motor, 43, driving shaft, 44, drivewheel, 45, Timing Belt, 46, holder, 47, driven pulley, 48, driven shaft, 49, guide table; 51, guide rail, 52, motor, 53, driving shaft, 54, gear-box, 55, leading screw, 56, the screw synchronous piece, 57, guide table; 61, screw rod, 62, the driven pulley holder, 63, nut, 64, connecting rod; 70, action button, 71, approach switch K1,72, approach switch K2,73, approach exploitation K3,74, approach switch K4,75, electromagnetic valve, 76, air accumulator, 77, Programmable Logic Controller.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment, this utility model is further illustrated.

Embodiment, four groups of automatic getting-on stretcher systems of device in compartment as shown in Figure 1, four groups of double-deck settings in stretcher system device both sides in compartment.Fig. 2, Fig. 3, be depicted as two groups of stretcher systems wherein, and upper and lower layer distributes, and upper stretcher assembly 11 and linkage thereof are positioned at top, and lower stretcher assembly 12 and linkage thereof are positioned at bottom.

The structure of linkage is shown in Figure 4, linkage comprises front arm base 23, front arm 21, rear arm 31, rear arm base 34, front arm base 23 and rear arm base 34 are fixed on compartment, the stretcher platform 13 of front arm base 23, front arm 21, stretcher assembly, rear arm 31 and rear arm base 34 are successively by hinge or gemel connection, therefore, swing front arm 21 or rear arm 31 stretcher platform 13 is rotated around base, rotation can make the stretcher assembly reduce and stretch out outside compartment backward.

The device that drives front arm 21 swings is cylinder 24, the bottom of cylinder 24 and cylinder rear support 25 hinge-connections, bearing 22 hinge-connections before the expansion link of cylinder 24 front portions and cylinder, cylinder rear support 25 is fixed on compartment, before cylinder, bearing 22 is fixed on front arm 21, and the expansion link of cylinder 24 elongates or shortens and can order about front arm 21 swings.

In order to make stretcher platform 13 rotations more steady, linkage also comprises air spring 32, bearing 35 hinge-connections before the front end of air spring 32 and air spring, the bottom of air spring 32 and air spring rear support 34 hinge-connections, prop up 35 before air spring and be fixed on rear arm 31, air spring rear support 34 is fixed on compartment.When cylinder 24 drove stretcher platform 13, rear arm 31 rotation, the active force that rear arm 31 produces made air spring 32 compressions or stretches, and the restoring force of air spring 32 reacts on rear arm 31, plays the effect of buffering, makes stretcher platform 13 rotations more steady.

Obviously, the length of the rocking arm of the linkage of stretcher assembly 11 and lower stretcher assembly 12, cylinder, air spring in driving, vary in size, so that mutually noninterfere ground motion each other, in Fig. 2, Fig. 3, the air spring of lower stretcher assembly 12 etc. does not illustrate in the drawings.

As shown in Figure 5, the stretcher assembly comprises stretcher platform 13, guide table 49, stretcher 14, stretcher 14 is removably mounted on guide table 49, and the upper side place of stretcher platform 13 arranges guide rail 41, and guide table 49 can move before and after guide rail 41 is on stretcher platform 13 under motor 42 drives.

Figure 5 shows that motor 42 drives a kind of mechanism that guide table 49 moves, in the framework of the stretcher platform 13 of stretcher assembly, motor 42 is set, motor 42 rotates and drives driving shaft 43, drivewheel 44, Timing Belt 45, the other end of Timing Belt 45 arranges driven pulley 47, driven shaft 48, motor 42 rotates Timing Belt 45 is moved forward and backward like this, forms transmitting device.The bottom of guide table 49 and Timing Belt 45 are fixing by holder 46, and the moving belt action-oriented platform 49 of Timing Belt 45 front and back on the guide rail 41 on stretcher platform 13 tops are mobile.

as shown in Figure 6, for regulating the tightness of Timing Belt 45, driven shaft 48 both sides at transmitting device arrange synchronous belt tension mechanism, tension mechanism comprises screw rod 61, connecting rod 64, nut 63, follower shaft 48 is connected with connecting rod 64, connecting rod 64 and screw rod 61 are fixing, screw rod 61 passes driven pulley holder 62, nut 63 is enclosed within on screw rod 61, the length that swivel nut 63 scalable screw rods 61 stretch out driven pulley holder 62, and then the distance of adjustment driven shaft 48 and holder 62, change the distance of driven shaft 48 and driving shaft 43, realize adjusting the function of Timing Belt 45 degrees of tightness.

Figure 7 shows that motor 52 drives the another kind of structure that guide table 57 moves, motor 52 is set in the framework of stretcher platform 13, motor 52 rotates and drives driving shaft 53, by gear-box 54, leading screw 55 is rotated, connect leading screw synchronization blocks 56 on leading screw 55, screw synchronous piece 56 is fixed with guide table 57 bottoms, like this, motor 52 rotates 55 rotations of drive leading screw moves forward and backward screw synchronous piece 56, and it is mobile to drive guide table 57 front and back on the guide rail 51 on stretcher platform 13 tops.

as Fig. 5, Fig. 9 removably installs stretcher 14 with Figure 10 shows that on guide table 49, holder 17 and rear holder 18 before the two ends on guide table 49 tops arrange respectively, front holder 17 is aft-opening draw-in groove, rear holder 18 is with a hole, the two ends, bottom of corresponding stretcher 14 arrange respectively crossbeam 147 and column 148, crossbeam 147 can snap in the draw-in groove of front holder 17, column 148 can insert in the hole of rear holder 18, when stretcher 14 is installed, first lift stretcher 14 rear ends and push away forward stretcher 14, make crossbeam 147 snap in the draw-in groove of front holder 17, fall again stretcher 14 rear ends, the hole of holder 18 after column 148 is inserted, during unloading, step is opposite.

For loading and unloading more easily stretcher 14, in the stretcher front bottom end, wheel 141 is installed, load and unload like this in stretcher 14 processes when the push-and-pull stretcher is anterior more Portable power saving.

As shown in figure 11, for making the wounded that lie low on stretcher 14 safer, seat belt 15 is set on stretcher 14, is used for the binding wounded.

as shown in Figure 8, rotation for control link mechanism and stretcher platform, moving forward and backward of guide table, this stretcher system also comprises control system, control system comprises air accumulator 76, electromagnetic valve 75, approach switch K1 71, approach switch K2 72, approach exploitation K3 73, approach switch K4 74, action button 70, Programmable Logic Controller (PLC) 77, air accumulator 76 provides power source for cylinder 24, electromagnetic valve 75 is controlled the break-make of gas circuit, the shift position of approach switch K1 and approach switch K2 monitoring guide table 49, the telescopic location of the expansion link of approach switch K3 and approach switch K4 monitoring cylinder 24, Programmable Logic Controller 77 is used for receiving monitoring information and setting, working procedure, action button 70 is used for sending controls instruction.While controlling, can be as required, set in advance manipulative procedure in PLC, or the information that monitors according to approach switch, press and control button 70 transmission instruction operation manipulative procedures, control the duty of air accumulator 76, electromagnetic valve 75, make cylinder 42 drive link mechanisms, control stretcher platform 13 and rotate around base, be accompanied by the 13 meeting liftings of rotation stretcher platform and stretch out or the retraction compartment; Also can control the duty of motor 42, and then control guide table 49 along direction and position that stretcher platform 13 moves forward and backward.

Obviously, when many group automatic getting-on stretcher systems were set in compartment, the PLC in control system, air accumulator etc. can share.

The work process of this stretcher system is:

load the process that the wounded get on the bus: first the stretcher assembly in compartment is rotated, reduce, stretch out compartment, detailed process is, press the operation button 70 and send instruction, PLC moves predefined program, connect electromagnetic valve 75, air accumulator 76 work are retracted the expansion link of cylinder 24, drivening rod mechanism swings, the stretcher assembly is rotated to the rear portion, compartment around base, in the time of rotation, the stretcher assembly reduces, stretch out outside compartment, during the close approach switch K3 of the expansion link of cylinder 24, approach switch K3 monitors signal and sends to PLC, PLC stops electromagnetic valve 75 according to signal, air accumulator 76 work.

Again guide table 49 is moved to stretcher platform 13 rear portions, detailed process is, press the operation button 70 or PLC automatically send instruction starter motor 42, motor 42 rotarily drives Timing Belt 45, Timing Belt 45 drives guide table 49 and moves to stretcher platform 13 rear portions, when the close approach switch K2 in certain position of guide table 49, approach switch K3 monitors the position of guide table 49 and transmits a signal to PLC, and PLC stops electric machine rotation according to signal.

The stretcher 14 that is loaded with the wounded is put guide table 49, and lift stretcher 14 rear portions, push stretcher 14 front portions, crossbeam 147 snaps in the draw-in groove of front holder 17, puts down stretcher 14 tail rear portions, and column 148 inserts in the hole of rear holder 18.

Guide table 49 is anterior mobile to stretcher platform 13, detailed process is, press the button 70 and send instruction, the PLC working procedure is controlled motor 42 and is rotated, drive guide table 49 anterior mobile to stretcher platform 13, while moving on to front portion, approach switch K1 monitors position and sends signal to PLC, PLC stops electric machine rotation according to signal, and guide table 49 resets.

Be loaded with in the wounded's stretcher assembly retraction compartment, detailed process is, press the button 70 or PLC automatically send instruction, start electromagnetic valve 75, air accumulator 76 work, the expansion link elongation of cylinder 24, drivening rod mechanism swings, the stretcher assembly is rotated around base, rotation time the stretcher assembly raise, in the retraction compartment, during the close approach switch K4 of the expansion link of cylinder 24, approach switch K4 monitors signal and sends to PLC, and PLC stops electromagnetic valve 75, air accumulator 76 work according to signal, and linkage resets.

The job step that the wounded get off is similar with the job step that the loading wounded get on the bus.

When by many group stretcher systems up and down,, for guaranteeing safety, should first load the wounded of stretcher assembly, then load the wounded of lower stretcher assembly; The wounded of the lower stretcher assembly of first unloading, then the wounded of the upper stretcher assembly of unloading.

Certainly, in work process, but the people presses action button 70 to control the duty of whole system, perhaps press action button 70 and carry out micro-positioning regulators, also other monitoring component can be set in stretcher system, detecting devices for example is installed at lower stretcher assembly place, whether the lower stretcher of monitoring has the people,, to determine the loading and unloading order of upper and lower stretcher assembly, guarantee personal security.

Claims

1. automatic getting-on stretcher system, described stretcher system is arranged in compartment, it is characterized in that, comprises stretcher assembly, linkage and control system, the stretcher assembly comprises stretcher platform, guide table, stretcher, and stretcher is removably mounted on guide table, and guide rail is set on stretcher platform, and guide table, by driven by motor, can move before and after guide rail is on stretcher platform, linkage comprises the front arm base, front arm, rear arm, the rear arm base, and front arm base, front arm, stretcher platform, rear arm, the rear arm base is successively by chain connection, fixing bearing before cylinder on front arm, bearing before cylinder, cylinder, the cylinder rear support is successively by chain connection, bearing before the fixed air spring on rear arm, bearing before air spring, air spring, the air spring rear support is chain connection successively, the front arm base, the cylinder rear support, the rear arm base, the air spring rear support all is fixed in compartment, Telescopic-cylinder can drive front arm and swing and drive stretcher platform and rotate around the rocking arm base, make the lifting of stretcher assembly and stretch out or the retraction compartment, control system comprises that air accumulator, electromagnetic valve, approach switch, motor, Programmable Logic Controller (PLC) and action button form, air accumulator provides power source for cylinder, the break-make of solenoid control gas circuit, approach switch is used for the telescopic location of monitoring guide table position and cylinder, PLC can receive monitoring information and arrange, moves manipulative procedure, action button transmit operation instruction, the duty of electromagnetic valve, motor be can control by action button, PLC, and then the rotation of stretcher platform or moving forward and backward of guide table controlled.

2. automatic getting-on stretcher system according to claim 1, it is characterized in that, described stretcher assembly and with it supporting linkage, control system be many groups, form many group automatic getting-on stretcher systems, organize that the automatic getting-on stretcher system superposes up and down or/and left and right is arranged in compartment more with arranging.

3. automatic getting-on stretcher system according to claim 1, it is characterized in that, the motor that arranges in described stretcher assembly, driving shaft, drivewheel, Timing Belt, driven shaft, driven pulley form transmitting device, driven by motor driving shaft, drivewheel rotate, Timing Belt is rotated around drivewheel, driven pulley, Timing Belt and guide table bottom are fixed by holder, and motor drives transmitting device drive guide table and moves before and after guide rail is on stretcher platform.

4. automatic getting-on stretcher system according to claim 3, it is characterized in that, described transmitting device also comprises tension mechanism, and tension mechanism is positioned at the driven shaft both sides, and driven shaft is connected with the driven shaft connecting rod, connecting rod and screw rod are fixed, screw rod passes the driven pulley holder, relies on the extension elongation of nut adjusting screw(rod), adjusts the distance of driven shaft and holder, change the distance between driven shaft and driving shaft, realize regulating the degree of tightness of Timing Belt.

5. automatic getting-on stretcher system according to claim 1, it is characterized in that, in described stretcher assembly, motor, gear-box, driving shaft, leading screw are set, gear driven leading screw rotation in the motor-driven gear case, the screw synchronous piece is connected with leading screw, screw synchronous piece and guide table bottom are fixing, and the leading screw rotation can drive the screw synchronous piece, and guide table is moved before and after guide rail is on stretcher platform.

6. according to claim 1,3 or 5 described automatic getting-on stretcher systems of any one, it is characterized in that, the two ends on the top of the guide table of described stretcher assembly arrange respectively front holder and rear holder, front holder is aft-opening draw-in groove, rear fixture belt has hole, the front bottom end setting of stretcher can snap in the crossbeam of draw-in groove, and the bottom, rear end arranges the column that can insert in hole.

7. automatic getting-on stretcher system according to claim 1, is characterized in that, the stretcher front bottom end of described stretcher assembly arranges wheel.

8. automatic getting-on stretcher system according to claim 1, is characterized in that, on the stretcher of described stretcher assembly, seat belt is set.