CN116176841A

CN116176841A - Combined type airborne rescue frame for aviation rescue

Info

Publication number: CN116176841A
Application number: CN202310464173.8A
Authority: CN
Inventors: 李晓雪; 郝昱文
Original assignee: Chinese PLA General Hospital
Current assignee: Chinese PLA General Hospital
Priority date: 2023-04-26
Filing date: 2023-04-26
Publication date: 2023-05-30
Anticipated expiration: 2043-04-26
Also published as: CN116176841B

Abstract

The invention relates to the technical field of airborne medical equipment such as helicopters, in particular to a combined type airborne rescue support for aviation rescue. The invention provides a combined type airborne rescue support which comprises an upright post assembly, an upper bed plate assembly and a lower bed plate assembly; the upper bed plate assembly and the lower bed plate assembly are respectively arranged on the upright post assembly, and the upper bed plate assembly is positioned above the lower bed plate assembly; the upright post assembly comprises two upright posts which are oppositely arranged and a backboard arranged between the two upright posts; the upper bed board assembly is arranged on the upright post through a first connecting piece and is configured to be capable of overturning downwards; the lower bed board assembly is mounted on the upright post through a second connecting piece, and the lower bed board assembly is configured to be capable of overturning upwards in opposite directions. Through adopting the bed board subassembly can overturn downwards, and the bed board subassembly can overturn upwards down, make holistic combination formula airborne ambulance support can fold like this, reduce transportation and storage integrated, conveniently carry.

Description

Combined type airborne rescue frame for aviation rescue

Technical Field

The invention relates to the technical field of airborne medical equipment such as helicopters, in particular to a combined type airborne rescue support for aviation rescue.

Background

The aviation rescue is also called an air 120, mainly uses the rescue task in large-scale emergencies, and a seamless rescue chain including a helicopter, a ground ambulance, a hospital with a transportation emergency green channel and the like is established, so that the influences of traffic, topography and the like are eliminated, and the rescue transportation time is shortened. At present, rescue equipment in the field of aviation rescue is large in size and inconvenient to carry due to the adoption of equipment frames.

Disclosure of Invention

The invention aims to provide a combined type airborne rescue support for aviation rescue, which aims to solve the technical problems that equipment supports recognized by the inventor are large in volume and inconvenient to carry.

The invention provides a combined type airborne rescue support for aviation rescue, which comprises an upright post assembly, an upper bed plate assembly and a lower bed plate assembly, wherein the upright post assembly is arranged on the upper bed plate assembly; the upper bed plate assembly and the lower bed plate assembly are respectively arranged on the upright post assembly, and the upper bed plate assembly is positioned above the lower bed plate assembly; the upright post assembly comprises two upright posts which are oppositely arranged and a backboard arranged between the two upright posts; the upper bed board assembly is mounted on the upright post through a first connecting piece and is configured to be capable of overturning downwards; the lower bed board assembly is mounted on the upright post through a second connecting piece, and the lower bed board assembly is configured to be capable of being turned upwards in opposite directions.

In any one of the above technical solutions, further, the upper bed board assembly and the lower bed board assembly each include two first support arms and a bed board, and the two first support arms are respectively located at two opposite sides of the bed board in the length direction;

the first connecting piece and the second connecting piece are fixed on the upright post through screws, and the first supporting arm is connected with the first connecting piece through a connecting pin assembly;

the connecting pin assembly comprises a fixing pin and a bolt;

the first supporting arm of the upper bed board assembly is connected with the first connecting piece through the bolt and the fixing pin, and when the bolt is detached, the upper bed board assembly can rotate relative to the axis of the fixing pin;

the first supporting arm of the lower bed board assembly is connected with the second connecting piece through the bolt and the fixing pin, and when the bolt is detached, the lower bed board assembly can rotate relative to the axis of the fixing pin.

In any of the above solutions, further, a stretcher fixing plate is fixed on the first support arm, and the stretcher fixing plate is configured to be detachably and fixedly connected with the stretcher through a screw.

In any of the above solutions, further, the combined airborne rescue frame further includes a device hanger, the device hanger is connected to the upright, and the device hanger is configured to be capable of being turned downward.

In any of the above technical solutions, further, the equipment rack comprises a rack body, a peripheral equipment rack is slidably arranged on the rack body, the peripheral equipment rack comprises a base plate and a bending clamping plate with a clamping groove structure, two bending clamping plates are arranged on one side edge of the base plate, and a first locking piece is arranged on the other opposite side edge of the base plate.

In any of the above technical solutions, further, the equipment hanger further includes a second support arm, one end of the second support arm is fixedly connected with the hanger body through a screw, the other end of the second support arm is connected with the first connecting piece through a connecting pin assembly, and when the latch is detached, the equipment hanger is configured to be capable of rotating relative to the axis of the fixing pin.

In any of the above solutions, further, the device hanger further includes an infusion pump stand configured to rotate relative to the stand body.

In any of the above technical solutions, further, an oxygen supply system fixing frame is further provided on the upright, and the oxygen supply system fixing frame is configured to install an oxygen supply system.

In any of the above technical solutions, further, the oxygen supply system fixing frame includes a support base, and the support base has a concave cavity.

In any of the above technical solutions, further, the oxygen supply system fixing frame includes a first fixing seat, the support base is mounted on the first fixing seat, and a clamp is further mounted on the first fixing seat.

By adopting the technical scheme, the invention has the following main beneficial effects:

the invention provides a combined type airborne rescue support which comprises an upright post assembly, an upper bed plate assembly and a lower bed plate assembly; the upper bed plate assembly and the lower bed plate assembly are respectively arranged on the upright post assembly, and the upper bed plate assembly is positioned above the lower bed plate assembly; the upright post assembly comprises two upright posts which are oppositely arranged and a backboard arranged between the two upright posts; the upper bed board assembly is arranged on the upright post through a first connecting piece and is configured to be capable of overturning downwards; the lower bed board assembly is mounted on the upright post through a second connecting piece, and the lower bed board assembly is configured to be capable of overturning upwards in opposite directions. Through adopting the bed board subassembly can overturn downwards, and the bed board subassembly can overturn upwards down, make holistic combination formula airborne ambulance support can fold like this, reduce transportation and storage integrated, conveniently carry.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a combined airborne rescue frame provided in embodiment 1;

fig. 2 is a schematic structural diagram of a combined type rescue frame for a plane in accordance with another view angle of embodiment 1;

fig. 3 is a schematic structural diagram of a combined airborne rescue frame according to another view angle of the embodiment 1;

FIG. 4 is an enlarged partial schematic view of FIG. 3A;

FIG. 5 is an enlarged partial schematic view at B in FIG. 3;

fig. 6 is a schematic view of the structure of the base in embodiment 2;

FIG. 7 is a schematic diagram of the operation of the hydrocarbon vibration damping system of example 2;

FIG. 8 is a schematic diagram of the operation of the hydrocarbon vibration damping system of example 3;

FIG. 9 is a schematic diagram of the operation of the direct acting two-position two-way valve of embodiments 3 and 4;

fig. 10 is a schematic diagram of the operation of the hydrocarbon vibration damping system in example 4.

Reference numerals:

101-an upright post; 102-a back plate; 103-a first connection; 104-a second connector; 105-a first support arm; 106, a bed board; 107-fixing pins; 108-a bolt; 109-stretcher securing plate; 110-a chute; 111-a frame body; 112-a substrate; 113-bending the clamping plate; 114-a handle; 115-cam structure; 116-a first locking member; 117-a second support arm; 118-infusion pump rack; 119-a first spring catch plate; 120-a second spring catch plate; 121-an oxygen supply system fixing frame; 122-a support base; 123-a first fixing seat; 124-clamping band; 126-upper bed plate assembly; 127-lower bed plate assembly; 200-base, 210-lower seat board; 220-upper seat plate; 300-an oil cylinder; 310-cylinder block; 311-have a rod cavity; 312-rodless cavity; 320-a piston rod; 321-limit baffles; 400-inertia block, BT-pump body, DF-one-way valve, F1-first control valve, F2-second control valve, F3-third control valve, F4-fourth control valve, F10-valve body, F11-reset spring, F12-control rod, F13-end plate, F14-one-way damping structure, GZ 1-first oil supply branch, GZ 2-second oil supply branch, GZ 3-third oil supply branch and GZ 4-fourth oil supply branch; HZ 1-first oil return branch, HZ 2-second oil return branch, X1-first pilot valve, X2-second pilot valve, YX-oil storage tank, Y1-first pressure valve, Y2-second pressure valve, ZH-oil return main path and ZG-oil supply main path.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-4, in one or more embodiments, a modular airborne ambulance mount is provided comprising a column assembly, an upper bed assembly, and a lower bed assembly; the upper bed plate assembly and the lower bed plate assembly are respectively arranged on the upright post assembly, and the upper bed plate assembly is positioned above the lower bed plate assembly; the upright post assembly comprises two upright posts 101 which are oppositely arranged and a backboard 102 which is arranged between the two upright posts; the upper bed plate assembly is mounted on the upright column through a first connector 103, and is configured to be capable of being turned down; the lower deck assembly is mounted on the upright by a second connector 104 and is configured to be capable of being flipped up in opposition. The upper bed board assembly, the lower bed board assembly and the upright post assembly are combined, so that the whole bed board is convenient to assemble and disassemble.

According to the combined type airborne rescue frame provided by the invention, the upper bed plate assembly can be turned downwards, and the lower bed plate assembly can be turned upwards, so that the integral combined type airborne rescue frame can be folded, the transportation and storage integration are reduced, and the portable airborne rescue frame is convenient to carry.

In some embodiments, the upper and lower deck assemblies each include two first support arms 105 and a deck 106, the two first support arms 105 being located on opposite sides of the deck in the length direction, respectively; the first connecting piece 103 and the second connecting piece 104 are fixed on the upright post through screws, and the first supporting arm 105 is connected with the first connecting piece 103 through a connecting pin assembly; the connecting pin assembly comprises a fixing pin 107 and a plug 108; the first supporting arm 105 of the upper bed board assembly is connected with the first connecting piece 103 through a bolt 108 and a fixing pin 107, and when the bolt 108 is disassembled, the upper bed board assembly can rotate relative to the axis of the fixing pin 107; the first support arm 105 of the lower deck assembly is connected to the second connector 104 by a pin 108 and a fixed pin 107, and when the pin 108 is removed, the lower deck assembly is able to rotate about the axis of the fixed pin 107. Thus, the upper bed plate assembly and the lower bed plate assembly are fixedly connected with the upright posts through the connecting pin assembly, and after the bolts 108 are pulled out, the upper bed plate assembly and the lower bed plate assembly are turned over respectively, so that the combined airborne rescue frame is folded.

In some embodiments, the first connector 103 and the second connector 104 are each connectors formed by welding a plurality of plate structures. The bed board is fixedly connected with the first supporting arm 105 through screws. When the first supporting arm 105 of the upper bed board assembly is connected with the first connecting piece 103 through the bolt 108 and the fixing pin 107, the bolt 108 and the fixing pin 107 are arranged at intervals, and are distributed at intervals along the length direction of the first supporting arm 105, the bolt 108 is close to the upright post, and the fixing pin 107 is far away from the upright post. When the first supporting arm 105 of the lower bed board assembly is connected with the second connecting piece 104 through the bolt 108 and the fixing pin 107, the bolt 108 and the fixing pin 107 are arranged at intervals, and are distributed at intervals along the length direction of the first supporting arm 105, the bolt 108 is far away from the upright post, and the fixing pin 107 is close to the upright post. The upper bed board assembly turns downwards under the self gravity, and after the upper bed board assembly turns upwards, the upper bed board assembly is bound with the upright post plate through the binding belt, so that the upper bed board assembly can keep an upward standing state after turning upwards.

In some embodiments, a stretcher securing plate 109 is also secured to the first support arm 105, the stretcher securing plate 109 being configured for releasable securing connection with the stretcher by screws. The stretcher fixing plate 109 is detachably and fixedly connected with the stretcher through screws, and is convenient for the detachment of the stretcher.

In one embodiment, the plate surface of the stretcher securing plate 109 is disposed substantially parallel to the length of the first support arm 105. The bed board is also provided with a chute 110 for guiding the first wheel of the stretcher, so that the stretcher can move along the chute 110, and the length direction of the chute 110 is parallel to the length direction of the bed board.

In some embodiments, the modular airborne ambulance rack further comprises a device hanger connected to the upright, and the device hanger is configured to be capable of being flipped downward, which facilitates reducing the volume of the overall modular airborne ambulance rack.

In some embodiments, the device hanger comprises a frame body 111, a peripheral device rack is slidably arranged on the frame body 111, the peripheral device rack comprises a base plate 112 and a bending clamping plate 113 with a clamping groove structure, two bending clamping plates 113 are arranged on one side edge of the base plate 112, and a first locking piece 116 is arranged on the other opposite side edge of the base plate 112. The position of the peripheral equipment rack on the rack body 111 is adjusted by the buckling clamping plate and the first locking piece 116.

In one embodiment, the peripheral rack may have a product such as a ventilator mounted thereon. The bending clamping plate 113 is provided with a clamping groove structure which is hung on the upper side edge of the frame 111, so that the whole substrate 112 is hung on the frame 111; the first locking member 116 includes a cam structure 115 and a handle 114, where the handle 114 is fixedly connected to the cam structure 115, and when the handle 114 rotates, the cam structure 115 can be rotated, so that the cam structure 115 locks or unlocks the lower side edge of the frame 111, and when the locking is performed, the position of the peripheral frame on the frame 111 is locked, and when the unlocking is performed, the peripheral frame can move on the frame 111.

In some embodiments, the device hanger further comprises a second support arm 117, one end of the second support arm 117 is fixedly connected to the hanger body 111 by a screw, and the other end of the second support arm 117 is connected to the first connector 103 by a connecting pin assembly, and when the latch 108 is detached, the device hanger is configured to be rotatable relative to the axis of the fixing pin 107. When the other end of the second support arm 117 is connected to the first connector 103 by a connecting pin assembly, the fixing pin 107 of the connecting pin assembly is spaced up and down from the plug 108. When the plug pin 108 is pulled out, the other end of the second support arm 117 is turned downward with respect to the axis of the fixing pin 107.

In some embodiments, the device hanger further comprises an infusion pump mount 118, the infusion pump mount 118 being configured to rotate relative to the mount body. The infusion pump stand 118 is used to mount an infusion pump. The infusion pump support 118 is pivoted with the side edge of the support body in the height direction, so that the infusion pump support 118 can conveniently rotate relative to the support body. A locking component is arranged between the infusion pump stand 118 and the stand body, and the infusion pump stand 118 and the stand body can rotate relatively through the locking component.

Referring to fig. 5, in one embodiment, the locking assembly includes a first spring catch plate 119 disposed on the infusion pump rack 118 and a second spring catch plate 120 disposed on the rack body 111, respectively. A first spring catch plate 119 is secured to and swings with the infusion pump rack 118.

The front end of the second spring clamping plate 120 is bent to form an arc clamping groove, the front end of the first spring clamping plate 119 is bent to form an arc clamping portion, the arc clamping groove is arranged on the swing path of the arc clamping portion, when the first spring clamping plate 119 swings along with the infusion pump frame 118, the arc clamping portion slides into the arc clamping groove, the second spring clamping plate 120 tightly holds the first spring clamping plate 119 by utilizing the elasticity of the second spring clamping plate, a temporary locking structure is achieved, and then the infusion pump frame 118 is temporarily locked. When the infusion pump stand 118 is rotated by external force or one end of the arc-shaped clamping groove of the second spring clamping plate 120 is directly pressed down, the arc-shaped clamping part of the first spring clamping plate 119 is forced to slide out of the arc-shaped clamping groove, and then the locking of the infusion pump stand 118 is released. The arc clamping part of the first spring clamping plate 119 is abutted against the outer side surface of the arc clamping groove of the second spring clamping plate 120, so that a friction damping structure is formed, and the continuous stop and locking of the swing process of the infusion pump frame 118 can be realized.

In some embodiments, an oxygen supply system mount 121 is also provided on the column, the oxygen supply system mount 121 being configured to mount an oxygen supply system. The air supply system comprises a medical oxygen bottle.

In some embodiments, the oxygen supply system mount 121 includes a support base 122, the support base 122 having a cavity for carrying a medical oxygen cylinder.

In some embodiments, the oxygen supply system fixing frame 121 further includes a first fixing base 123, the support base 122 is mounted on the first fixing base 123, and the first fixing base 123 is further provided with a clamp 124. The medical oxygen bottle is fixed on the first fixing base 123 by the clamp 124.

In some embodiments, the modular airborne ambulance rack further comprises an ambulance rack base 200 to which the stud assembly is bolted.

Example 2

Referring to fig. 6, the present embodiment discloses a base structure, which can be used for the ambulance rack base 200 in the above embodiment 1, and the base 200 includes an upper base plate 220 and a lower base plate 210; the upper seat plate 220 is slidably provided on the lower seat plate 210 in the X-axis direction (i.e., the front-rear direction). Wherein, the combined airborne ambulance bracket is arranged on the upper seat board 220 through the upright post assembly, and the lower seat board 210 is fixedly connected with the bottom board of the airplane through the fastening piece.

Referring to fig. 7, an oil and gas damping system is provided between the upper seat plate 220 and the lower seat plate 210, and includes: the oil cylinder 300, the oil storage tank YX, the first pressure valve Y1 and an oil return pipeline;

the oil cylinder 300 includes a cylinder body 310, a piston and a piston rod 320; the cylinder 310 is fixedly connected with the lower seat plate 210, and the piston rod 320 is fixedly connected with the upper seat plate 220;

the rod cavity 311 and the rodless cavity 312 of the oil cylinder 300 are respectively connected with the oil storage tank YX through an oil return pipeline, and a first pressure valve Y1 is arranged on the oil return pipeline.

Wherein a plurality of cylinders 300 are preferably arranged in a matrix between the upper and

lower base plates

220 and 210 so as to uniformly stress.

Preferably, the oil return pipeline comprises a first oil return branch HZ1 and a second oil return branch HZ2;

the rod cavity 311 is connected with the oil storage tank YX through a first oil return branch HZ 1; the rodless chamber 312 is connected to the oil reservoir YX via a second oil return branch HZ 2.

Preferably, the oil-return device further comprises an oil-return main path ZH, wherein the first oil-return branch path HZ1 and the second oil-return branch path HZ2 are connected with one end of the oil-return main path ZH, and the other end of the oil-return main path ZH is connected with an oil storage tank YX;

the first pressure valve Y1 is provided in the oil return main path ZH.

And optionally, the first oil return branch HZ1 and the second oil return branch HZ2 are respectively provided with a first pressure valve Y1 for respectively adjusting and controlling the oil pressure on the oil circuit.

More preferably, the first oil return branch HZ1 and the second oil return branch HZ2 are respectively provided with a check valve DF for controlling the oil in the oil cylinder 300 to flow to the oil storage tank YX in a unidirectional manner.

Preferably, the hydraulic oil pump further comprises a first oil supply branch road GZ1, a second oil supply branch road GZ2 and an oil supply main road ZG, wherein one end of the first oil supply branch road GZ1 is connected with the rod cavity 311, and the other end is connected with the oil supply main road ZG; one end of the second oil supply branch line GZ2 is connected with the rodless cavity 312, and the other end is connected with the oil supply main line ZG;

the oil supply main path ZG is provided with a pump body BT; the first oil supply branch GZ1 and the second oil supply branch GZ2 are respectively provided with a first pilot valve X1 and a second pilot valve X2; the control ports on the first pilot valve X1 and the second pilot valve X2 are connected with the rod chamber 311 and the rodless chamber 312 through a first control oil path and a second control oil path, respectively.

Preferably, the first oil supply branch GZ1 and the second oil supply branch GZ2 are respectively provided with a check valve DF for controlling the oil to flow in one direction to the rod cavity 311 and the rodless cavity 312.

Preferably, the oil supply main passage ZG is further provided with a second pressure valve Y2.

Under the impact action, when the upper seat plate 220 moves relative to the lower seat plate 210, the upper seat plate 220 drives the piston to move in the cylinder 310 through the piston rod 320, wherein oil in the rod cavity 311 or the rodless cavity 312 is extruded, and when the pressure exceeds the set pressure of the first pressure valve Y1, the oil in the rod cavity 311 or the rodless cavity 312 flows back to the oil storage tank YX through the oil return pipeline; the pressure of the oil in the rodless cavity 312 or the rod cavity 311 at the opposite side is reduced, or even a negative pressure state occurs, and at this time, the pressure in the second control oil path or the first control oil path is reduced, so that the second pilot valve X2 or the first pilot valve X1 is reset and conducted under the action of the internal reset spring, and the oil in the oil storage tank YX flows into the rodless cavity 312 or the rod cavity 311.

Corresponding to the damping mode of current spring mode, the oil gas damping system of this application disclosed is when the shock attenuation, and damping force is invariable, and does not have the impact of anti-elasticity to avoid patient on the base 200 to suffer great impact, worsen the state of an illness, and also can effectively avoid the instrument equipment that sets up on the base 200 to damage or influence its normal work.

Example 3

Referring to fig. 8, this embodiment is basically the same in structure as embodiment 2, except that:

the base structure disclosed in the present embodiment further includes a first control valve F1, a second control valve F2, and an inertia block 400;

the first control valve F1 and the second control valve F2 are respectively arranged on the first oil return branch HZ1 and the second oil return branch HZ2;

the first control valve F1 and the second control valve F2 are direct-acting two-position two-way valves; referring to fig. 9, the direct acting two-position two-way valve includes a valve body F10, a valve body (not shown) slidably provided in the valve body F10, a return spring F11, and a control lever F12; the reset spring F11 and the control rod F12 are respectively arranged at two ends of the valve core and used for controlling the valve core to switch between two working positions; the two-position two-way valve is kept in a normally-off state under the action of a return spring F11; the outer end of the control rod F12 extends out of the valve body F10; the valve core is pushed inwards to move by the external force through pushing the outer side end of the control rod F12 against the spring force of the return spring F11, and the ports on two sides of the two-position two-way valve are communicated (namely the two-position two-way valve is in a communicated state).

Wherein the inertial mass 400 is slidably disposed on the lower seat plate 210 along the X direction; the first control rod F12 on the first control valve F1 and the second control rod F12 on the second control valve F2 are both disposed along the X direction, and the outer end of the first control rod F12 and the outer end of the second control rod F12 are disposed at two ends of the moving path of the inertial mass 400 respectively.

When suddenly decelerating or accelerating, the inertia block 400 moves relative to the lower seat board 210 under the action of inertia, and when touching the first control rod F12 or the second control rod F12, the first control valve F1 and the second control valve F2 are opened through the first control rod F12 or the second control rod F12, the first oil return branch HZ1 or the second oil return branch HZ2 is conducted, and the oil in the rod cavity 311 or the rodless cavity 312 flows back to the oil tank YX.

The first control valve F1 and the second control valve F2 are in a normally closed (normally-off) state, oil in the rod cavity 311 and the rodless cavity 312 cannot flow out, and therefore the upper seat plate 220 and the lower seat plate 210 can be locked, relative movement between the upper seat plate and the lower seat plate is avoided, people and objects on the base 200 are prevented from shaking, and especially dizziness of a patient is avoided.

Only when a large gear change and shock occurs, the first control valve F1 or the second control valve F2 is opened by the inertia block 400, thereby forming an active damping system.

And more preferably, the direct-acting two-position two-way valve is provided with a one-way damping structure F14 between the control rod F12 and the valve body F10, and the one-way damping structure F14 is used for controlling the control rod F12 to slowly reset under the action of the reset spring F11, so that sufficient damping time is provided for the whole oil-gas damping system, namely, oil is ensured to flow back to the oil storage tank YX in sufficient time.

And when the inertia block 400 applies an acting force to the control rod F12, the unidirectional damping structure F14 does not work, so that the first control valve F1 or the second control valve F2 is guaranteed to respond and switch on quickly. The unidirectional damping structure F14 is a conventional technology, and will not be described herein.

More preferably, the outer end of the control rod F12 of the direct-acting two-position two-way valve is provided with an end plate F13, so as to facilitate the collision of the inertia block 400.

And a spring member is disposed between the inertial mass 400 and the lower seat plate 210, so that the inertial mass 400 is conveniently reset and stays at the middle position of the two end plates F13. The inertial mass 400 is preferably a metal mass in the form of a cylinder or a cuboid.

In this embodiment, a wrench (not shown) extending outside the lower seat plate 210 is preferably provided on the inertial mass 400, and the inertial mass 400 can be forced to actively touch the end plate F13 and the control rod F12 by the wrench, so as to realize manual resetting of the oil gas damping system and the upper seat plate 220. Under normal conditions, the inertia impact probability caused by deceleration and acceleration is equivalent, and the piston in the oil cylinder 300 moves left and right in the stroke of the piston, so that automatic resetting or balancing is realized. However, when the number or frequency of inertial shocks caused by acceleration and deceleration is different, the piston is caused to stay at one of its extreme positions, for example, the rod chamber 311 is compressed to the minimum, and at this time, the damping by the rod chamber 311 is not possible. To solve such a problem, the inertia block 400 is moved by a wrench to touch the control rod F12 of the second control valve F2, the oil in the rodless chamber 312 flows back to the oil reservoir YX, and simultaneously, the first pilot valve X1 is opened and the oil is inputted into the rod chamber 311 due to the negative pressure condition of the rod chamber 311, thereby resetting the oil cylinder 300.

Example 4

Referring to fig. 10, this embodiment is basically the same in structure as embodiment 3, except that: the embodiment further comprises a third oil supply branch GZ3 and a fourth oil supply branch GZ4, wherein one end of the third oil supply branch GZ3 is connected with the oil supply main path ZG, and the other end is connected with the rod cavity 311; one end of the fourth oil supply branch line GZ4 is connected to the oil supply main line ZG, and the other end is connected to the rodless cavity 312;

the third and fourth oil supply branches GZ3 and GZ4 are provided with a third and fourth control valve F3 and F4, respectively. The third control valve F3 and the fourth control valve F4 are direct-acting two-position two-way valves described in embodiment 3.

Specifically, the input end of the third control valve F3 is connected to the oil supply main passage ZG, and the output end of the third control valve F3 is connected to the rod-shaped cavity 311; the input end of the fourth control valve F4 is connected with the oil supply main path ZG, and the output end of the fourth control valve F4 is connected with the rod cavity 311.

The piston rod 320 is provided with a limit baffle 321, a third control rod F12 on the third control valve F3 and a fourth control rod F12 on the fourth control valve F4 are arranged along the X direction (the telescopic direction of the piston rod 320), and the ends of the third control rod F12 and the fourth control rod F12 are respectively arranged at two ends of the moving path of the limit baffle 321.

When the piston rod 320 moves to the first limit position (left limit position), the limit baffle 321 touches the third control rod F12, the third control valve F3 is opened, oil is input into the rod cavity 311, and the piston moves towards the rodless cavity 312 under the action of hydraulic pressure; when the piston rod 320 moves the second limit position (right limit position), the limit baffle 321 touches the fourth control rod F12, the fourth control valve F4 is opened, oil is input into the rodless cavity 312, and the piston moves toward the rod cavity 311 under the action of hydraulic pressure.

The unidirectional damping structures F14 on the third control valve F3 and the fourth control valve F4 control the reset time of the control rod F12, namely the time when the control oil is input into the rod cavity 311 and the rodless cavity 312, after the control rod F12 is completely reset under the action of the reset spring F11, the third control valve F3 or the fourth control valve F4 is closed, the oil stops being input, and the piston stays at the middle part of the cylinder body 310 approximately.

Compared with embodiment 3, the present embodiment can automatically reset cylinder 300 and upper seat plate 220, and prepare for the next buffering. The degree of automation is high, and initiative shock attenuation is effectual.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. The combined type airborne rescue support for aviation rescue is characterized by comprising an upright post assembly, an upper bed plate assembly and a lower bed plate assembly; the upper bed plate assembly and the lower bed plate assembly are respectively arranged on the upright post assembly, and the upper bed plate assembly is positioned above the lower bed plate assembly; the upright post assembly comprises two upright posts which are oppositely arranged and a backboard arranged between the two upright posts; the upper bed board assembly is mounted on the upright post through a first connecting piece and is configured to be capable of overturning downwards; the lower bed board assembly is mounted on the upright post through a second connecting piece, and the lower bed board assembly is configured to be capable of being turned upwards in opposite directions.

2. The combination ambulance rack of claim 1, wherein said upper and lower bed assemblies each comprise two first support arms and a bed plate, said two first support arms being respectively located on opposite sides of said bed plate in a length direction;

the connecting pin assembly comprises a fixing pin and a bolt;

3. The combination ambulance rack of claim 2, wherein the first support arm further has a stretcher securing plate secured thereto, the stretcher securing plate configured for releasable securing connection with a stretcher by screws.

4. The combination ambulance rack of claim 2, further comprising an equipment rack connected to said upright and configured to be flipped down.

5. The combined type airborne rescue support of claim 4, wherein the equipment hanging frame comprises a support body, an external equipment frame is arranged on the support body in a sliding mode, the external equipment frame comprises a base plate and a bending clamping plate with a clamping groove structure, two bending clamping plates are arranged on one side edge of the base plate, and a first locking piece is arranged on the other side edge, opposite to the base plate, of the base plate.

6. The combination ambulance rack according to claim 5, wherein said equipment rack further comprises a second support arm, one end of said second support arm being fixedly connected to said rack body by a screw, the other end of said second support arm being connected to said first connector by a connecting pin assembly, said equipment rack being configured to rotate relative to the axis of said fixed pin when said latch is removed.

7. The combination ambulance rack of claim 5, wherein said equipment rack further comprises an infusion pump rack configured to rotate relative to said rack body.

8. The combination ambulance rack of claim 1, wherein an oxygen supply system mount is further provided on said upright, said oxygen supply system mount being configured to mount an oxygen supply system.

9. The combination ambulance rack of claim 8, wherein said oxygen supply system mount comprises a support base having a cavity.

10. The combination ambulance rack according to claim 9, wherein said oxygen supply system holder comprises a first holder, said support base being mounted on said first holder, said first holder being further provided with a clip.