CN112294546A

CN112294546A - Universal vehicle occupant attachment

Info

Publication number: CN112294546A
Application number: CN202011199680.6A
Authority: CN
Inventors: 张戎; 杨勇; 朱剑武; 赵辉; 许川; 胡杰; 邱金龙
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-02-02

Abstract

The invention provides a general vehicle passenger additional device, which comprises two L-shaped main rods, a first stretcher supporting component, a workbench component and a second stretcher supporting component, wherein a lifting device is arranged at the lower side of the L-shaped main rods and is provided with two stretcher rod sleeves; the first stretcher supporting component comprises two supporting rods, a bottom rod and two connecting rods, the two supporting rods are vertical, the bottom rod is horizontal, and the supporting rods are connected with the L-shaped main rod through the connecting rods; the workbench component comprises a workbench frame and a folding and unfolding mechanism; the middle parts of the two L-shaped main rods are connected through a cross rod, the workbench frame is hinged with the cross rod, and the workbench frame can be fixed through a folding and unfolding mechanism; the second stretcher support assembly includes a stretcher bar support member having a through hole for the stretcher bar to pass through. The invention provides a multi-layer stretcher supporting component which can be used for simultaneously transporting a plurality of wounded persons, wherein the wounded persons lie at a low position firstly, and then the stretcher is moved to the upper position through a lifting mechanism, so that the labor is saved and the efficiency is high.

Description

Universal vehicle occupant attachment

Technical Field

The invention relates to the technical field of wounded personnel transportation tools, in particular to a passenger additional device of a general vehicle.

Background

When an earthquake, a flood, a fire or other disasters happen, a large number of wounded people are transported by using transportation tools such as airplanes, ships, automobiles, trucks and the like, so that the wounded people are very necessary to be rescued in time, and the method has important significance for the construction of a national rescue system. Stretchers are common life saving equipment in disaster relief and function to safely transfer the injured person to a safe area. However, one stretcher can only lie down for one person, is used for rescuing in sudden diseases, and cannot be used for transporting wounded in a large batch.

Chinese patent CN107928891B discloses a double-layered stretcher convenient to move, comprising: the fixed stretcher board, the cross bar, the panel and the support legs which are connected to the lower end of the panel in a foldable manner; the fixed stretcher plate is provided with a first rolling layer consisting of a plurality of driving rollers which are arranged in parallel and at equal intervals, and the driving rollers are driven by a motor; a movable base plate comprising a second rolling layer, a connecting layer and a backrest surface layer is arranged above the fixed stretcher plate; the second rolling layer is arranged below the connecting layer and comprises a plurality of driven rollers which are arranged in parallel and at intervals, and the outer diameters of the driven rollers are matched with the outer diameter of the driving roller and are in transmission connection; a plurality of grooves matched with the driven rollers are formed below the connecting layer; set up the draw-in groove that runs through from the driving wheel cross section along driven running roller diameter direction, rotate in unison at the draw-in groove to the horizontal direction and form and link up the groove, the horizontal pole embedding links up the groove in order to fix driven running roller in the recess, conveniently conveys patient from the stretcher to other facilities.

However, the above-mentioned patents also have the following drawbacks: dismantling and installation is difficult, and when the transport vehicle is limited by the inner space, the time and labor are spent in the aspects of dismantling and installing, which results in the increase of the time for going to the rescue site.

Therefore, how to provide a universal vehicle passenger attachment device which has a simple structure, can be suitable for transporting mass wounded persons, is very convenient and quick to detach and install, and is a technical problem to be solved by technical personnel in the field.

Disclosure of Invention

In view of the deficiencies of the prior art, the present invention provides a universal vehicle occupant restraint system comprising:

the horizontal part of the L-shaped main rod is connected with the upper end of the vertical part of the L-shaped main rod, and the lower side of the horizontal part of the L-shaped main rod is provided with a lifting device which is provided with two stretcher rod sleeves; wherein, the stretcher bar sleeve can move along the vertical direction;

the first stretcher supporting component is arranged at the lower part of the L-shaped main rod and comprises two supporting rods, a bottom rod and two connecting rods, the two supporting rods are vertically arranged, the two supporting rods and the two L-shaped main rods are distributed in a rectangular array mode, the two supporting rods are located on the same side of the rectangular array, the bottom rod is horizontally arranged, two ends of the bottom rod are respectively connected with the two L-shaped main rods, and the adjacent supporting rods and the L-shaped main rods are connected through the connecting rods; wherein the connecting rod is connected with the upper end of the supporting rod;

the workbench assembly is arranged in the middle of the L-shaped main rod and comprises a workbench frame which is rectangular as a whole and a folding and unfolding mechanism positioned below the workbench frame; the middle parts of the vertical parts of the two L-shaped main rods are connected through a cross rod, the workbench frame is hinged with the cross rod through a hinge, and the workbench frame can be fixed in the horizontal extending arrangement and the vertical folding arrangement through a folding and unfolding mechanism;

and a second stretcher support assembly disposed on the upper portion of the L-shaped main bar, including a stretcher bar support member having a through hole through which the stretcher bar passes, an axial direction of the through hole being identical to a length direction of the bottom bar.

Thus, the universal vehicle occupant attachment of the present application provides a multi-layered stretcher support assembly that can transport multiple injured persons simultaneously, improving rescue efficiency; moreover, the wounded person can lie down at a low position, the stretcher is moved to the upper position through the arranged lifting mechanism, and finally the stretcher is fixed on the stretcher rod supporting member; in addition, a foldable workbench assembly is arranged, the workbench assembly can be used for working by placing a workbench, or a stretcher can be placed on the workbench, and wounded persons can be rescued additionally; finally, because the universal vehicle occupant attachment of the present application does not bind the stretcher and the attachment together, the attachment of the present application can also be used to place cargo.

Further, L type mobile jib includes lower branch and the last branch that is the L type, the upper portion outside of lower branch is provided with the external screw thread, the lower part inboard of lower branch is provided with the internal thread with external screw thread matched with.

Like this, can adjust the length of L type master lever according to actual conditions's needs, avoid it to occupy extra space to still easy dismounting.

Furthermore, a support plate is connected to the lower side of one end of the connecting rod, which is far away from the L-shaped main rod, the support plate is provided with a horizontal support surface, the support surface is used for supporting an upper rod detached from the L-shaped main rod, the upper rod is divided into a first part and a second part by taking a corner as a boundary, the first part is used for being connected with the support surface, and the second part extends along the length direction of the bottom rod;

the lower side of one side, far away from the L-shaped main rod, of the workbench frame is further fixedly provided with a strut sleeve, the extending direction of the strut sleeve is consistent with the length direction of the bottom rod, and the strut sleeve is used for enabling the second part of the upper strut to penetrate through.

Therefore, the disassembled upper support rod is used for supporting the workbench frame, the form of the additional device is converted into a seat structure, a rest place is provided for disaster relief workers and soldiers, and the structural stability is enhanced.

Further, the lifting device comprises an installation seat, a driving gear, a driven gear, a first guide wheel, a first sliding rope, a second guide wheel and a second sliding rope, the installation seat is arranged on the lower side of the horizontal part of the L-shaped main rod, the driving gear is rotatably installed on one side of the installation seat through a driving shaft, the driving gear is meshed with the driven gear, and the driven gear is rotatably installed on one side of the installation seat through a driven shaft; the diameter of the driving gear is smaller than that of the driven gear, and a handle is connected to the driving shaft;

a plurality of first guide wheels are arranged on the lower side of the horizontal part of the L-shaped main rod through a mounting frame, one end of the first sliding rope is connected with the driven shaft, and the other end of the first sliding rope penetrates through the plurality of first guide wheels, then bends downwards and extends and is connected with a stretcher rod sleeve;

and a plurality of second guide wheels are arranged on one side of the vertical part of the L-shaped main rod through a mounting frame, one end of each second sliding rope is connected with the driven shaft, and the other end of each second sliding rope penetrates through the plurality of second guide wheels, then is bent downwards and extends and is connected with a stretcher rod sleeve.

Like this, adjust the driving gear that the diameter is less through the handle, can realize the lift process comparatively laborsavingly.

Furthermore, the lifting device also comprises a locking structure, and the locking structure comprises a locking block, a pull rod and a tension spring;

the front end of the locking block is provided with a plurality of locking teeth, and the locking teeth are detachably matched with tooth grooves of the driving gear; the lower side of the locking block is concavely provided with a notch, the upper end of the pull rod is connected with the mounting seat through a tension spring, and the lower end of the pull rod is bent and buckled on the notch.

In this way, when the lifting device is used again to lift the stretcher to a proper position, the lifting device is fixed by using the locking structure, the structural stability is improved, after the stretcher is stabilized, the stretcher is detached from the stretcher bar sleeve of the lifting device and is installed on the stretcher bar supporting member, and finally the lifting device is lowered to transport the next stretcher.

Further, the stretcher bar supporting member comprises a U-shaped base and a cover plate;

one side of the U-shaped base is connected with the vertical part of the L-shaped main rod through a connecting socket, and the other side of the U-shaped base is hinged with a locking bolt;

one side of the upper end opening of the U-shaped base, which is close to the vertical part of the L-shaped main rod, is hinged with the cover plate, one side of the cover plate, which is far away from the hinge between the cover plate and the U-shaped base, is provided with a locking notch, and one side of the locking notch, which is far away from the vertical part of the L-shaped main rod, penetrates through the cover plate;

the locking bolt can rotate to in the fore shaft, and the part that the locking bolt upwards wore out the fore shaft passes through fixing bolt detachably and installs on the apron.

Thus, the stretcher bar of the stretcher is fixed after being fixed on the stretcher bar sleeve and then is locked and fixed, and the stability of the structure is enhanced.

Further, the folding and unfolding mechanism comprises a fixed frame, a movable frame and a self-locking device, wherein the fixed frame is vertically arranged on the side part of the L-shaped main rod, the movable frame is hinged to the upper end of the fixed frame, and the movable frame is connected with the bottom of the workbench frame.

Furthermore, the self-locking device comprises a baffle plate, a rotating shaft, a torsion spring, a sliding shaft and a lock rod;

the bottom of the movable frame is provided with a lock groove, the baffle is arranged in the lock groove and is rotatably connected with the left side and the right side of the lock groove through the rotating shaft; the rotating shaft is sleeved with the torsion spring, and two arms of the torsion spring are respectively connected with the upper side and the lower side of the locking groove;

the left side and the right side of the movable frame are respectively provided with a strip-shaped hole extending along the length direction of the movable frame, the strip-shaped hole is positioned above the rotating shaft, two ends of the sliding shaft respectively penetrate through the strip-shaped hole and can slide along the length direction of the strip-shaped hole, one end of the sliding shaft is connected with the lock rod, and one end of the lock rod, which is far away from the sliding shaft, is hinged with the lower part of the fixed frame;

under the action of the torsion spring, the upper part of the baffle plate can block the sliding path of the sliding shaft.

Therefore, after the working platform frame is subjected to state conversion, the locking function can be automatically realized along the belt without additional operation.

Furthermore, a first joint is connected to one end of the connecting rod, which is close to the vertical part of the L-shaped main rod, a second joint which is correspondingly matched with the first joint is arranged on the vertical part of the L-shaped main rod, and the first joint and the second joint are connected through a hinge shaft;

like this, when needing again to dismantle the attachment of this application, can conveniently pack up the connecting rod, reduce occupation space.

The upper sides of the connecting rod and the bottom rod are provided with L-shaped limiting parts which are used for fixing the stretcher.

In this way, the stability of the stretcher is enhanced.

Further, the lower extreme of the vertical portion of L type mobile jib with the lower extreme of bracing piece all is provided with the buffering decompression seat, the buffering decompression seat includes vertical extending structure and overlaps the buffer spring who establishes outside this vertical extending structure.

Therefore, the buffer function is achieved, and the comfort degree of the stretcher for the wounded on the additional device is improved.

Compared with the prior art, the invention has the following advantages:

1. can be used in airplanes, ships and trucks, and is convenient for transporting wounded persons in batches.

2. Can be used in tents and hospitals, and victims or wounded persons rest on a stretcher.

3. Providing rest for the workers or soldiers in disaster relief.

4. Can be used as a goods shelf for placing or transporting goods.

5. When the wounded or the goods need to be put on the high-rise, the lifting device is used for operating, and labor saving and high efficiency are achieved.

6. The conveying of goods and the transportation of wounded are integrated, and the purpose of transporting the goods and the wounded can be achieved simultaneously.

7. The modularized design of the detachable structure of the device can divide the whole device into a plurality of small modules, the device can be conveniently transported to a rescue place, the installation is labor-saving and convenient, and the inner space of the transport vehicle occupied on the way of transporting to the rescue place is small.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a schematic view of a general vehicle occupant restraint attachment of an embodiment of the present invention when placed on a stretcher;

FIG. 2 is a schematic view of the universal vehicle occupant restraint attachment of the embodiment of the present invention shown without a stretcher;

FIG. 3 is a schematic structural diagram at A in FIG. 2 according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram at B in FIG. 2 according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram at C in FIG. 2 according to an embodiment of the present invention;

FIG. 6 is a schematic side view of the embodiment of FIG. 2;

FIG. 7 is a schematic view of the lifting device shown in FIG. 6 according to the embodiment of the present invention;

FIG. 8 is a schematic view of a locking mechanism of an embodiment of the present invention;

FIG. 9 is a schematic structural view of a universal vehicle occupant restraint attachment in a chair state in accordance with an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a buffer pressure-reducing seat according to an embodiment of the present invention.

Reference numerals:

1-L-shaped main rod, 11-lower supporting rod, 12-upper supporting rod and 13-gourd hole;

2-lifting device, 20-stretcher bar sleeve, 21-mounting seat, 22-driving gear, 23-driven gear, 24-first guide wheel, 25-first sliding rope, 26-second guide wheel, 27-second sliding rope, 28-handle, 29-locking structure, 291-locking block, 2911-locking tooth, 292-pull rod and 293-tension spring;

3-a first stretcher support component, 31-a support bar, 32-a bottom bar, 33-a connecting bar, 331-a first joint, 332-a second joint, 34-a support plate, 35-an L-shaped limit piece, 36-a buffer pressure-relief seat, 361-a vertical telescopic structure, 362-a buffer spring, 363-a disc, 37-a fixing bar;

4-a workbench component, 40-a workbench, 41-a workbench frame, 42-a folding and unfolding mechanism, 421-a fixed frame, 422-a movable frame, 4221-a strip-shaped hole, 423-a self-locking device, 4231-a baffle, 4232-a lock rod, 43-a cross rod, 44-a hinge and 45-a support rod sleeve;

5-a second stretcher support component, 51-a stretcher bar support member, 511-a U-shaped base, 512-a cover plate, 513-a locking bolt, 514-a fixing bolt;

6-stretcher bar;

7-safety rope, 8-hook.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Example (b): as shown in fig. 1, a general vehicle occupant attachment includes two L-shaped main bars 1, a first stretcher support member 3, a table member 4, and a second stretcher support member 5. The horizontal part of the L-shaped main rod 1 is connected with the upper end of the vertical part, a lifting device 2 is arranged at the lower side of the horizontal part of the L-shaped main rod 1, and the lifting device 2 is provided with two stretcher rod sleeves 20; wherein the stretcher bar sleeve 20 can be displaced in a vertical direction.

As shown in fig. 1 and 2, the first stretcher supporting component 3 is disposed at the lower portion of the L-shaped main rod 1, and includes two supporting rods 31, a bottom rod 32 and two connecting rods 33, the two supporting rods 31 are vertically disposed, the two supporting rods 31 and the two L-shaped main rods 1 are distributed in a rectangular array, the two supporting rods 31 are located at the same side of the rectangular array, the bottom rod 32 is horizontally disposed, two ends of the bottom rod 32 are respectively connected with the two L-shaped main rods 1, and the adjacent supporting rods 31 and the L-shaped main rods 1 are connected through the connecting rods 33; wherein the connecting rod 33 is connected with the upper end of the supporting rod 31.

As shown in fig. 1, 2 and 9, the workbench assembly 4 is arranged in the middle of the L-shaped main rod 1, and includes a workbench frame 41 with a rectangular shape as a whole and a folding and unfolding mechanism 42 located below the workbench frame 41; the middle parts of the vertical parts of the two L-shaped main rods 1 are connected through a cross rod 43, the workbench frame 41 is hinged to the cross rod 43 through a hinge 44, and the workbench frame 41 can be fixed when horizontally extending and the workbench frame 41 can be fixed when vertically folding and unfolding through a folding and unfolding mechanism 42. In practice, the middle of the cross bar 43 is connected to the middle of the bottom bar 32 by the fixing bar 37.

As shown in fig. 1, the second stretcher support assembly 5 is disposed at the upper portion of the L-shaped main bar 1, and includes a stretcher bar support member 51, and the stretcher bar support member 51 has a through hole for passing the stretcher bar 6 therethrough, and the axial direction of the through hole coincides with the longitudinal direction of the bottom bar 32. In practice, the stretcher bar supporting members 51 are provided in multiple groups, and each group of stretcher bar supporting members 51 is respectively disposed on the two L-shaped main bars 1 and at the same level. Thus, the patient can be transported to a large number of wounded persons.

Thus, the universal vehicle occupant attachment of the present application provides a multi-layered stretcher support assembly that can transport multiple injured persons simultaneously, improving rescue efficiency; moreover, the wounded person can lie down at a low position, the stretcher is moved to the upper position through the arranged lifting mechanism, and finally the stretcher is fixed on the stretcher rod supporting member; in addition, a foldable workbench component is arranged, and the workbench component can be used for carrying out work by placing the workbench 40, or a stretcher can be placed on the workbench 40, and wounded persons can be rescued additionally; finally, because the universal vehicle occupant attachment of the present application does not bind the stretcher and the attachment together, the attachment of the present application can also be used to place cargo.

As shown in fig. 2, 6 and 7, the L-shaped main rod 1 includes a lower rod 11 and an upper rod 12 in an L shape, an external thread is disposed on an outer side of an upper portion of the lower rod 11, and an internal thread matched with the external thread is disposed on an inner side of a lower portion of the lower rod 12. Like this, can adjust the length of L type master lever according to actual conditions's needs, avoid it to occupy extra space to still easy dismounting.

As shown in fig. 9, a support plate 34 is connected to a lower side of an end of the connecting rod 33 remote from the L-shaped main rod 1, the support plate 34 has a horizontal support surface for supporting the upper rod 12 detached from the L-shaped main rod 1, the upper rod 12 is divided into a first portion and a second portion by a corner, the first portion is connected to the support surface, and the second portion extends along a longitudinal direction of the bottom rod 32. A strut sleeve 45 is further fixed to a lower side of the table frame 41 on a side away from the L-shaped main rod 1, the strut sleeve 45 extending in a direction corresponding to the length direction of the bottom rod 32, and the strut sleeve 45 is used for passing through a second portion of the upper strut 12. Therefore, the disassembled upper support rod is used for supporting the workbench frame, the form of the additional device is converted into a seat structure, a rest place is provided for disaster relief workers and soldiers, and the structural stability is enhanced.

As shown in fig. 2, 6 and 7, the lifting device 2 includes an installation base 21, a driving gear 22, a driven gear 23, a first guide pulley 24, a first sliding rope 25, a second guide pulley 26 and a second sliding rope 27, the installation base 21 is disposed at the lower side of the horizontal portion of the L-shaped main rod 1, the driving gear 22 is rotatably installed at one side of the installation base 21 through a driving shaft, the driving gear 22 is engaged with the driven gear 23, and the driven gear 23 is rotatably installed at one side of the installation base 21 through a driven shaft; wherein, the diameter of the driving gear 22 is smaller than that of the driven gear 23, and a handle 28 is connected to the driving shaft. A plurality of first guide wheels 26 are installed at the lower side of the horizontal portion of the L-shaped main lever 1 through a mounting bracket (not shown), one end of the first sliding rope 25 is connected to the driven shaft, and the other end thereof passes through the plurality of first guide wheels 26 and then bends downward to extend and is connected to a stretcher lever sleeve 20. A plurality of second guide wheels 26 are installed at one side of the vertical portion of the L-shaped main rod 1 through an installation frame, one end of the second sliding rope 25 is connected with the driven shaft, and the other end thereof passes through the plurality of second guide wheels 26 and then is bent downwards to extend and is connected with a stretcher rod sleeve 20. Like this, adjust the driving gear that the diameter is less through the handle, can realize the lift process comparatively laborsavingly.

As shown in fig. 8, the lifting device 2 further includes a locking structure 29, and the locking structure 29 includes a locking block 291, a pull rod 292, and a tension spring 293. The front end of the locking block 291 is provided with a plurality of locking teeth 2911, and the locking teeth 2911 are detachably matched with the tooth grooves of the driving gear 22; the locking block 291 is provided with a notch at the lower side in a concave manner, the upper end of the pull rod 292 is connected with the mounting seat 21 through a tension spring 293, and the lower end of the pull rod 292 is bent and buckled on the notch. In this way, when the lifting device is used again to lift the stretcher to a proper position, the lifting device is fixed by using the locking structure, the structural stability is improved, after the stretcher is stabilized, the stretcher is detached from the stretcher bar sleeve of the lifting device and is installed on the stretcher bar supporting member, and finally the lifting device is lowered to transport the next stretcher. When the locking device is implemented, the locking block 291 is pulled, so that the locking teeth 2911 are fixed in the tooth grooves of the driving gear 22 for locking; unlocking is achieved by reversing the direction of lock block 291 and moving lock teeth 2911 away from the teeth of drive gear 22.

As shown in fig. 1, 2 and 5, the stretcher bar supporting member 51 includes a U-shaped base 511 and a cover 512. One side of the U-shaped base 511 is connected to the vertical portion of the L-shaped main rod 1 through a connection socket, and the other side of the U-shaped base 511 is hinged to a locking bolt 513. One side of the upper end opening of the U-shaped base 511, which is close to the vertical part of the L-shaped main rod 1, is hinged with the cover plate 512, one side of the cover plate 512, which is deviated from the hinge between the cover plate and the U-shaped base 511, is provided with a locking notch, and one side of the locking notch, which is far away from the vertical part of the L-shaped main rod 1, penetrates through the cover plate 512. The locking bolt 513 can be rotated into the locking opening, and the part of the locking bolt 513 which penetrates out of the locking opening upwards is detachably mounted on the cover plate 512 through a fixing bolt 514. In practice, a gourd hole 13 is opened on the vertical part of the L-shaped main rod 1, and the gourd hole 13 is used for plugging and fixing the connection socket. Thus, the stretcher bar of the stretcher is fixed after being fixed on the stretcher bar sleeve and then is locked and fixed, and the stability of the structure is enhanced.

As shown in fig. 2 and 4, the folding and unfolding mechanism 42 includes a fixed frame 421, a movable frame 422 and a self-locking device 423, the fixed frame 421 is vertically disposed at a side portion of the L-shaped main rod 1, the movable frame 422 is hinged to an upper end of the fixed frame 421, and the movable frame 422 is connected to a bottom of the workbench frame 41. The self-locking device 423 includes a flapper 4231, a rotation shaft (not shown), a torsion spring (not shown), a slide shaft (not shown), and a lock lever 4232. A locking groove (not shown) is formed at the bottom of the movable frame 422, the baffle 4231 is arranged in the locking groove, and the baffle 4231 is rotatably connected with the left side and the right side of the locking groove through the rotating shaft; the rotating shaft is sleeved with the torsion spring, and two arms of the torsion spring are respectively connected with the upper side and the lower side of the locking groove. The bar hole 4221 that extends along adjustable shelf 422 length direction is still seted up respectively to the left and right sides of adjustable shelf 422, and this bar hole 4221 is located the top of pivot, the both ends of sliding shaft pass respectively bar hole 4221, and can follow the length direction of bar hole 4221 slides, the one end of sliding shaft with locking lever 4232 links to each other, the one end that locking lever 4232 deviates from the sliding shaft with the lower part of mount 421 is articulated. The upper portion of the flapper 4231 can block the sliding path of the slide shaft by the torsion spring. Therefore, after the working platform frame is subjected to state conversion, the locking function can be automatically realized along the belt without additional operation.

As shown in fig. 2 and 3, a first joint 331 is connected to one end of the connecting rod 33 near the vertical portion of the L-shaped main rod 1, a second joint 332 corresponding to the first joint is disposed on the vertical portion of the L-shaped main rod 1, and the first joint 331 and the second joint 332 are connected by a hinge shaft. Like this, when needing again to dismantle the attachment of this application, can conveniently pack up the connecting rod, reduce occupation space. An L-shaped limiting member 35 is disposed on the upper sides of the connecting rod 33 and the bottom rod 32, and the L-shaped limiting member 35 is used for fixing the stretcher. In this way, the stability of the stretcher is enhanced.

As shown in fig. 2 and 10, the lower end of the vertical portion of the L-shaped main rod 1 and the lower end of the support rod 31 are both provided with a buffer pressure reducing seat 36, the buffer pressure reducing seat 36 includes a vertical telescopic structure 361 and a buffer spring 362 sleeved outside the vertical telescopic structure 361, and a disc 363 is further disposed at the bottom of the telescopic structure 361 to enhance stability. When the device is implemented, inert gas is arranged in the inner cavity of the vertical telescopic structure. Therefore, the buffer function is achieved, and the comfort degree of the stretcher for the wounded on the additional device is improved.

In practice, as shown in fig. 1, the stretcher bar supporting members 51 are two sets spaced up and down, and each set of stretcher bar supporting members 51 is respectively disposed on the two L-shaped main bars 1 and at the same level. Like this, the embodiment of this application when transporting wounded in batches, can be equipped with four layers of stretchers at most, and its concrete operation mode's step is:

1) the two persons operate simultaneously, the first auxiliary stretcher is placed on the workbench 40, then the handle 28 of the lifting device 2 is rotated, the positions of the stretcher rod sleeves 20 are adjusted to be close to the workbench 40, and the two stretcher rods 6 of the first auxiliary stretcher are respectively sleeved into the two pairs of stretcher rod sleeves 20; the handle 28 of the lifting device 2 is rotated in the opposite direction to lift the stretcher, and finally a stretcher bar 6 of the first secondary stretcher is placed into the pair of stretcher support members 51 positioned above, and the stretcher bar cover 20 is removed from the stretcher bar 6, and the lifting device 4 is lowered, so that the fourth layer from bottom to top can be formed.

2) The second secondary stretcher is placed on the operation table 20, the two stretcher bars 6 of the second secondary stretcher are sleeved with the two stretcher bar sleeves 20, the handle 28 is rotated, the lifting device 4 drives the second secondary stretcher to ascend, and one stretcher bar 6 of the second secondary stretcher is placed into the pair of stretcher supporting members 51 positioned below, so that the third layer can be counted from bottom to top.

3) The third secondary stretcher is placed directly on the worktop 20, which may be the second layer from bottom to top.

4) The fourth secondary stretcher is placed on the two connecting rods 33 and the stretcher is fixed by the L-shaped stoppers 35, which may be the first layer from bottom to top.

5) A hook 8 is arranged at one end of the horizontal part of the L-shaped main rod 1, which is far away from the numerical part of the L-shaped main rod, and then the stretcher at the fourth layer is connected and buckled with the hook 8 through a safety rope 7; the two adjacent stretchers are connected and buckled together through the safety rope 7, so that the stability and the safety of the stretchers are improved.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A universal vehicle occupant restraint device, comprising:

2. The utility vehicle occupant attachment according to claim 1, wherein the L-shaped main bar includes a lower bar and an upper bar in an L-shape, an upper outer side of the lower bar is provided with an external thread, and a lower inner side of the lower bar is provided with an internal thread that fits with the external thread.

3. The utility vehicle occupant attachment according to claim 2, wherein a support plate having a horizontal support surface for supporting an upper support bar detached from the L-shaped main bar is attached to a lower side of an end of the connecting bar remote from the L-shaped main bar, the upper support bar being divided into a first section for connecting to the support surface and a second section extending in a length direction of the bottom bar with a corner as a boundary;

4. The utility vehicle occupant attachment according to claim 1, wherein the lifting device includes an attachment base, a driving gear rotatably mounted on one side of the attachment base through a driving shaft, a driven gear rotatably mounted on one side of the attachment base through a driven shaft, a first guide pulley, a first slide rope, a second guide pulley, a second slide rope, the attachment base being provided on a lower side of a horizontal portion of the L-shaped main lever; the diameter of the driving gear is smaller than that of the driven gear, and a handle is connected to the driving shaft;

5. The universal vehicle occupant attachment apparatus according to claim 4, wherein the lifting device further comprises a locking structure comprising a locking block, a pull rod, a tension spring;

6. The universal vehicle occupant attachment as claimed in any one of claims 1 or 4, wherein said stretcher bar support member comprises a U-shaped base and a cover;

7. The utility vehicle occupant attachment of claim 1, wherein the stowing and deploying mechanism comprises a fixed frame vertically disposed on a side of the L-shaped boom, a movable frame hingedly disposed on an upper end of the fixed frame, and a self-locking mechanism, the movable frame being coupled to a bottom portion of the bench frame.

8. The universal vehicle occupant restraint of claim 7, wherein the self-locking device comprises a flapper, a pivot shaft, a torsion spring, a slide shaft, and a lock lever;

9. The utility vehicle occupant attachment according to claim 1, wherein a first joint is connected to an end of the connecting rod adjacent to the vertical portion of the L-shaped main rod, a second joint is provided on the vertical portion of the L-shaped main rod to correspond to the first joint, and the first joint and the second joint are connected by a hinge shaft;

10. The utility vehicle occupant attachment according to claim 1, wherein the lower end of the vertical portion of the L-shaped main rod and the lower end of the support rod are both provided with a buffer decompression seat, the buffer decompression seat comprising a vertical telescopic structure and a buffer spring sleeved outside the vertical telescopic structure.