阅读说明：本技术 一种担架仓 (Stretcher chamber ) 是由 周建平 于 2020-12-24 设计创作，主要内容包括：本发明公开了一种担架仓,包括底座,在底座上设有直线导轨,在直线导轨上设有滑动平台,在滑动平台一侧设有限位板,在底座顶部后端设有后固定架,在后固定架的后固定板后端设有第一卡口,在后固定架中设有转轴,在转轴上设有锁板,在锁板的后锁紧部设有第二卡口,在转轴上设有扭簧,锁板的前连接部与拉杆后端铰接,在底座前端设有连接板及锁紧杆,连接板铰接在底座前端,锁紧杆内侧端与连接板前部铰接,连接板后部设有弧形孔,拉杆前端设有位于弧形孔中的定位销,在锁紧杆上套装有复位弹簧。本发明具有使用安全性高的优点。(The invention discloses a stretcher chamber which comprises a base, wherein a linear guide rail is arranged on the base, a sliding platform is arranged on the linear guide rail, a limiting plate is arranged on one side of the sliding platform, a rear fixing frame is arranged at the rear end of the top of the base, a first bayonet is arranged at the rear end of a rear fixing plate of the rear fixing frame, a rotating shaft is arranged in the rear fixing frame, a locking plate is arranged on the rotating shaft, a second bayonet is arranged at the rear locking part of the locking plate, a torsion spring is arranged on the rotating shaft, a front connecting part of the locking plate is hinged with the rear end of a pull rod, a connecting plate and a locking rod are arranged at the front end of the base, the connecting plate is hinged at the front end of the base, the inner side end of the locking rod is hinged with the front part of the connecting. The invention has the advantage of high use safety.)

1. A litter bin comprising: the base is used for being fixed with the carriage bottom plate of the ambulance, and is characterized in that: the top of the base is provided with a linear guide rail which moves forwards and backwards, a sliding platform which is used for assisting in supporting the getting-on stretcher is arranged on the linear guide rail in a sliding mode, the rear end of the sliding platform is provided with an anti-unhooking hook which is used for enabling a front cross rod of a bottom frame of the getting-on stretcher to be clamped upwards when the getting-on stretcher is folded, one side of the front end of the sliding platform is fixedly provided with a limiting plate which moves along a corresponding side plate of the base, and the limiting plate is provided with; the rear end of the top of the base is provided with a rear fixing frame, the top of the rear fixing frame is provided with a rear fixing plate, the rear end of the rear fixing plate is provided with a first bayonet in which a stud at the rear end of an upper frame of the boarding stretcher is clamped, the rear fixing frame at the first bayonet is vertically supported with a rotating shaft, the rotating shaft is fixedly provided with a locking plate, the locking plate is provided with a front connecting part and a rear locking part, the rear locking part of the locking plate is provided with a second bayonet corresponding to the first bayonet, the rear locking part of the locking plate extends backwards to form a handle, the rotating shaft is sleeved with a torsional spring, two ends of the torsional spring are respectively connected and fixed with the locking plate and the rear fixing frame, the locking plate always has the tendency of rotating around the shaft to fasten the stud of the boarding stretcher which slides into the first bayonet under the action of the elasticity of the torsional spring, the front connecting part of the locking plate is hinged with the rear end of the pull rod through a first vertical pin shaft, and the, the front end of the bottom of the base is provided with a connecting plate and a locking rod in the left-right direction, the connecting plate is hinged to the front end of the bottom of the base through a second vertical pin shaft, the inner side end of the locking rod is hinged to the front portion of the connecting plate through a third vertical pin shaft, an arc-shaped hole is formed in the rear portion of the connecting plate, a positioning pin located in the arc-shaped hole is arranged at the front end of the pull rod, the locking rod is sleeved with a reset spring, and the locking rod always has the tendency of extending outwards from a corresponding base side plate and inserting into a limiting hole of a limiting plate under the elastic action of the reset spring and simultaneously drives the connecting plate to rotate forwards until the rear end of the arc-; when the folded boarding stretcher pushed into the base is positioned and connected with the sliding platform by clamping the cross rod at the front part into the anti-unhooking hook, the sliding platform moves forwards along the base until the stud is clamped into the first bayonet and is fastened by the locking plate to be limited and fixed on the base, the sliding platform also moves forwards until the limiting hole on the limiting plate of the sliding platform is aligned with the locking rod, and the locking rod moves outwards under the elastic action of the reset spring and is inserted into the limiting hole to limit and fix the sliding platform on the base; when external force pulls the handle forwards to drive the locking plate to rotate around the rotating shaft, the rear locking part of the locking plate can rotate forwards and the front connecting part of the locking plate can rotate backwards, when the rear locking part of the locking plate rotates forwards to the second bayonet to loosen the upper stretcher stud in the first bayonet to unlock the upper stretcher and the base, the front connecting part of the locking plate can rotate backwards and drive the pull rod to move backwards, the connecting plate is synchronously pulled to rotate backwards by the positioning pin when the pull rod moves backwards, and the connecting plate drives the locking rod to overcome the elastic force of the reset spring to move inwards to separate from the limiting hole of the limiting plate of the sliding platform when rotating backwards so as to unlock the sliding platform and the base at the same time; when the getting-on stretcher is clamped into the first bayonet through the stud and is fastened by the locking plate and is fixed on the base in a limiting way, and the locking rod overcomes the elastic force of the reset spring to move inwards under the action of external force to break away from the limiting hole of the sliding platform limiting plate and push the connecting plate to rotate backwards, the connecting plate moves along the positioning pin of the pull rod through the arc-shaped hole and cannot push the pull rod to move backwards, so that the getting-on stretcher is ensured to be still fastened and fixed on the base by the locking plate fastener at the moment.

2. The litter bin of claim 1, wherein: the left and right sides at sliding platform rear portion is provided with a pair of first limiting plate respectively, be connected with first spacing axle between every to first limiting plate, the left and right sides at base rear portion is provided with first stopper respectively, the rear end at every first stopper is provided with the first spacing bayonet socket that supplies the first spacing axle card of corresponding side to go into, when sliding platform along the base move forward to the spacing hole that the check lock lever outwards inserted the limiting plate and when being fixed on the base, every first spacing axle on the sliding platform just in time blocks in the first spacing bayonet socket that corresponds first stopper on the base, and every first stopper just in time is located between a pair of first limiting plate that corresponds this moment.

3. The litter bin of claim 1 or 2, wherein: the left side and the right side of the front portion of the sliding platform are respectively and vertically provided with a limiting column, the left side and the right side of the front portion of the base are respectively provided with a second limiting block, the rear end of each second limiting block is provided with a second limiting bayonet for the limiting columns on the corresponding sides to be clamped into, when the sliding platform moves forwards along the base to the limiting holes of the locking rods which are outwards inserted into the limiting plates and is fixed on the base, at the moment, each limiting column on the sliding platform is just clamped into the second limiting bayonet corresponding to the second limiting block on the base.

4. The litter bin of claim 3, wherein: the left side and the right side of the middle section of the bottom of the getting-on stretcher are respectively provided with a pair of second limiting plates, a second limiting shaft is connected between each pair of second limiting plates, the left side and the right side of the middle part of the base are respectively provided with a third limiting block, the rear end of each third limiting block is provided with a third limiting bayonet for the second limiting shaft on the corresponding side to be clamped into, when the getting-on stretcher moves forwards along the base to the stud to be clamped into the first bayonet and is fastened by the locking plate and is limited and fixed on the base, at the moment, each second limiting shaft on the getting-on stretcher is just clamped into the third limiting bayonet corresponding to the third limiting block on the base, and at the moment, each third limiting block is just located between the corresponding pair of second limiting plates.

Technical Field

The invention relates to a stretcher chamber for placing a medical rescue getting-on stretcher, in particular to a stretcher chamber.

Background

The stretcher chamber is an indispensable important rescue tool for medical institutions in rescue of patients, is arranged on a carriage bottom plate of an ambulance and is used for placing a boarding stretcher for medical rescue. The structure of boarding stretchers generally comprises: the bottom of the horizontal frame is provided with a bottom frame of rollers, the front part of the bottom frame is provided with a front cross rod, an upper frame is arranged above the bottom frame, the rear end of the upper frame is provided with a stud, the top of the upper frame is provided with a lying frame for a patient to lie on, an X-shaped lifting frame formed by hinging two inclined struts in an X shape is arranged between the bottom frame and the upper frame, and the X-shaped lifting frame is driven by an oil cylinder to be opened or closed, so that the ground clearance of the lying frame is adjusted. The stretcher chamber used at present has the defects of poor use stability and safety.

Disclosure of Invention

The invention aims to provide a stretcher chamber with high use stability and high use safety.

In order to achieve the purpose, the invention adopts the following technical scheme: a litter bin comprising: the base is used for being fixed with a carriage bottom plate of an ambulance, the top of the base is provided with a linear guide rail which moves forwards and backwards, a sliding platform which is used for assisting in supporting an getting-on stretcher is arranged on the linear guide rail in a sliding mode, the rear end of the sliding platform is provided with an anti-falling hook for enabling a front cross rod of a bottom frame of the getting-on stretcher to be clamped upwards when the getting-on stretcher is folded, one side of the front end of the sliding platform is fixedly provided with a limiting plate which moves along a corresponding side plate of the base, and the limiting plate is provided with a; the rear end of the top of the base is provided with a rear fixing frame, the top of the rear fixing frame is provided with a rear fixing plate, the rear end of the rear fixing plate is provided with a first bayonet in which a stud at the rear end of an upper frame of the boarding stretcher is clamped, the rear fixing frame at the first bayonet is vertically supported with a rotating shaft, the rotating shaft is fixedly provided with a locking plate, the locking plate is provided with a front connecting part and a rear locking part, the rear locking part of the locking plate is provided with a second bayonet corresponding to the first bayonet, the rear locking part of the locking plate extends backwards to form a handle, the rotating shaft is sleeved with a torsional spring, two ends of the torsional spring are respectively connected and fixed with the locking plate and the rear fixing frame, the locking plate always has the tendency of rotating around the shaft to fasten the stud of the boarding stretcher which slides into the first bayonet under the action of the elasticity of the torsional spring, the front connecting part of the locking plate is hinged with the rear end of the pull rod through a first vertical pin shaft, and the, the front end of the bottom of the base is provided with a connecting plate and a locking rod in the left-right direction, the connecting plate is hinged to the front end of the bottom of the base through a second vertical pin shaft, the inner side end of the locking rod is hinged to the front portion of the connecting plate through a third vertical pin shaft, an arc-shaped hole is formed in the rear portion of the connecting plate, a positioning pin located in the arc-shaped hole is arranged at the front end of the pull rod, the locking rod is sleeved with a reset spring, and the locking rod always has the tendency of extending outwards from a corresponding base side plate and inserting into a limiting hole of a limiting plate under the elastic action of the reset spring and simultaneously drives the connecting plate to rotate forwards until the rear end of the arc-; when the folded boarding stretcher pushed into the base is positioned and connected with the sliding platform by clamping the cross rod at the front part into the anti-unhooking hook, the sliding platform moves forwards along the base until the stud is clamped into the first bayonet and is fastened by the locking plate to be limited and fixed on the base, the sliding platform also moves forwards until the limiting hole on the limiting plate of the sliding platform is aligned with the locking rod, and the locking rod moves outwards under the elastic action of the reset spring and is inserted into the limiting hole to limit and fix the sliding platform on the base; when external force pulls the handle forwards to drive the locking plate to rotate around the rotating shaft, the rear locking part of the locking plate can rotate forwards and the front connecting part of the locking plate can rotate backwards, when the rear locking part of the locking plate rotates forwards to the second bayonet to loosen the upper stretcher stud in the first bayonet to unlock the upper stretcher and the base, the front connecting part of the locking plate can rotate backwards and drive the pull rod to move backwards, the connecting plate is synchronously pulled to rotate backwards by the positioning pin when the pull rod moves backwards, and the connecting plate drives the locking rod to overcome the elastic force of the reset spring to move inwards to separate from the limiting hole of the limiting plate of the sliding platform when rotating backwards so as to unlock the sliding platform and the base at the same time; when the getting-on stretcher is clamped into the first bayonet through the stud and is fastened by the locking plate and is fixed on the base in a limiting way, and the locking rod overcomes the elastic force of the reset spring to move inwards under the action of external force to break away from the limiting hole of the sliding platform limiting plate and push the connecting plate to rotate backwards, the connecting plate moves along the positioning pin of the pull rod through the arc-shaped hole and cannot push the pull rod to move backwards, so that the getting-on stretcher is ensured to be still fastened and fixed on the base by the locking plate fastener at the moment.

Further, a stretcher chamber as described above, wherein: the left and right sides at sliding platform rear portion is provided with a pair of first limiting plate respectively, be connected with first spacing axle between every to first limiting plate, the left and right sides at base rear portion is provided with first stopper respectively, the rear end at every first stopper is provided with the first spacing bayonet socket that supplies the first spacing axle card of corresponding side to go into, when sliding platform along the base move forward to the spacing hole that the check lock lever outwards inserted the limiting plate and when being fixed on the base, every first spacing axle on the sliding platform just in time blocks in the first spacing bayonet socket that corresponds first stopper on the base, and every first stopper just in time is located between a pair of first limiting plate that corresponds this moment.

Further, a stretcher chamber as described above, wherein: the left side and the right side of the front portion of the sliding platform are respectively and vertically provided with a limiting column, the left side and the right side of the front portion of the base are respectively provided with a second limiting block, the rear end of each second limiting block is provided with a second limiting bayonet for the limiting columns on the corresponding sides to be clamped into, when the sliding platform moves forwards along the base to the limiting holes of the locking rods which are outwards inserted into the limiting plates and is fixed on the base, at the moment, each limiting column on the sliding platform is just clamped into the second limiting bayonet corresponding to the second limiting block on the base.

Further, a stretcher chamber as described above, wherein: the left side and the right side of the middle section of the bottom of the getting-on stretcher are respectively provided with a pair of second limiting plates, a second limiting shaft is connected between each pair of second limiting plates, the left side and the right side of the middle part of the base are respectively provided with a third limiting block, the rear end of each third limiting block is provided with a third limiting bayonet for the second limiting shaft on the corresponding side to be clamped into, when the getting-on stretcher moves forwards along the base to the stud to be clamped into the first bayonet and is fastened by the locking plate and is limited and fixed on the base, at the moment, each second limiting shaft on the getting-on stretcher is just clamped into the third limiting bayonet corresponding to the third limiting block on the base, and at the moment, each third limiting block is just located between the corresponding pair of second limiting plates.

Through the implementation of the technical scheme, the invention has the beneficial effects that: simple structure, installation easy maintenance, convenient operation, labour saving and time saving to can improve the stability in use and the safety in utilization in stretcher storehouse greatly.

Drawings

Fig. 1 is a schematic structural view of a stretcher chamber according to the present invention.

Fig. 2 is a schematic structural view of a section a-a in fig. 1.

Fig. 3 is a structural schematic view in the bottom view direction of fig. 1.

Fig. 4 is an enlarged view of a portion D shown in fig. 3.

Fig. 5 is an enlarged schematic view of a portion E shown in fig. 3.

Fig. 6 is a schematic view of the structure in the right view direction of fig. 1.

Fig. 7 is a structural diagram of a section B-B in fig. 6.

Fig. 8 is an enlarged schematic view of a portion F shown in fig. 7.

Fig. 9 is a schematic structural view of the section C-C in fig. 6.

Fig. 10 is an enlarged schematic view of a portion G shown in fig. 9.

Fig. 11 is an enlarged schematic view of the region M shown in fig. 9.

Fig. 12 is an enlarged schematic view of the N site shown in fig. 9.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, the litter box comprises: the base 1 is used for being fixed with a carriage bottom plate of an ambulance, the top of the base 1 is provided with a linear guide rail 2 which moves forwards and backwards, a sliding platform 4 which is used for assisting in supporting an getting-on stretcher 3 is arranged on the linear guide rail 2 in a sliding way, the rear end of the sliding platform 4 is provided with an anti-unhooking hook 5 for upwards clamping a front cross rod 32 of a bottom frame 31 of the getting-on stretcher 3 when the getting-on stretcher 3 is folded, one side of the front end of the sliding platform 4 is fixed with a limiting plate 6 which moves along a corresponding side plate of the base 1, and the limiting plate 6 is provided with a limiting; the rear end of the top of the base 1 is provided with a rear fixing frame 7, the top of the rear fixing frame 7 is provided with a rear fixing plate 8, the rear end of the rear fixing plate 8 is provided with a first bayonet for clamping a stud 34 at the rear end of an upper frame 33 of a boarding stretcher 3, the rear fixing frame 7 at the first bayonet is vertically supported with a rotating shaft 9, the rotating shaft 9 is fixedly provided with a locking plate 10, the locking plate 10 is provided with a front connecting part and a rear locking part, the rear locking part of the locking plate 10 is provided with a second bayonet corresponding to the first bayonet, the rear locking part of the locking plate 10 extends backwards to form a handle 11, the rotating shaft 9 is sleeved with a torsion spring, two ends of the torsion spring are respectively connected and fixed with the locking plate 10 and the rear fixing frame 7, the locking plate 10 always has the tendency of rotating around the rotating shaft 9 to the pillar 34 of the boarding stretcher which has slid into the first bayonet under the elastic action of the torsion spring, the front connecting part of the locking plate 10 is hinged with the rear end of a pull rod 13 through a first, the pull rod 13 extends forwards to the front end of the bottom of the base 1, a connecting plate 14 and a locking rod 15 moving left and right are arranged at the front end of the bottom of the base 1, the connecting plate 14 is hinged to the front end of the bottom of the base 1 through a second vertical pin shaft 16, the inner side end of the locking rod 15 is hinged to the front portion of the connecting plate 14 through a third vertical pin shaft 17, an arc-shaped hole 18 is formed in the rear portion of the connecting plate 14, a positioning pin 19 located in the arc-shaped hole 18 is arranged at the front end of the pull rod 13, a return spring 20 is sleeved on the locking rod 15, and the locking rod 15 always tends to extend outwards from a corresponding side plate of the base 1 and be inserted into a limiting hole of the limiting plate 6 under the elastic force of the return spring 20 and simultaneously drives the connecting plate 14 to rotate forwards until the rear end of the arc-shaped; when the folded boarding stretcher 3 pushed into the base 1 is positioned and connected with the sliding platform 4 by clamping the front cross rod 32 into the anti-drop hook 5, the sliding platform 4 also moves forward right until the limiting hole on the limiting plate 6 of the boarding stretcher 3 is aligned with the locking rod 15 when the boarding stretcher 3 moves forward along the base 1 until the stud 34 is clamped into the first bayonet and is fastened by the locking plate 10 and is limited and fixed on the base 1, and at the moment, the locking rod 15 moves outwards under the action of the elastic force of the return spring 20 and is inserted into the limiting hole, so that the sliding platform 4 is limited and fixed on the base 1; when external force pulls the handle 11 forwards to drive the locking plate 10 to rotate around the rotating shaft, the rear locking part of the locking plate 10 can rotate forwards and the front connecting part of the locking plate can rotate backwards, when the rear locking part of the locking plate 10 rotates forwards to the second bayonet and loosens the getting-on stretcher stud 34 in the first bayonet to unlock the getting-on stretcher 3 and the base 1, the front connecting part of the locking plate 10 can rotate backwards and drive the pull rod 13 to move backwards, the connecting plate 14 is synchronously pulled to rotate backwards through the positioning pin 19 when the pull rod 13 moves backwards, and the connecting plate 14 drives the locking rod 15 to overcome the elasticity of the return spring 20 to move inwards to be separated from the limiting hole of the sliding platform limiting plate 4 to unlock the sliding platform 4 and the base 1 at the same step; when the getting-on stretcher 3 is clamped into the first bayonet through the stud 34 and is fastened by the locking plate 10 to be limited and fixed on the base 1, and the locking rod 15 overcomes the elastic force of the return spring 20 to move inwards under the action of external force to be separated from the limiting hole of the sliding platform limiting plate 6 and push the connecting plate 14 to rotate backwards, the connecting plate 14 moves along the positioning pin 19 of the pull rod 13 through the arc-shaped hole 18 and cannot push the pull rod 13 to move backwards, so that the getting-on stretcher 3 is ensured to be fastened and fixed on the base 1 by the locking plate 10 at the moment;

in this embodiment, a pair of first stopper plates 21 are provided at the left and right sides of the rear portion of the slide table 4, a first limit shaft 22 is connected between each pair of first limit plates 21, the left side and the right side of the rear part of the base 1 are respectively provided with a first limit block 23, the rear end of each first limiting block 23 is provided with a first limiting bayonet for the first limiting shaft 22 at the corresponding side to be clamped in, when the sliding platform 4 moves forward along the base 1 until the locking rod 15 is inserted into the limiting hole of the limiting plate 6 and fixed on the base 1, at this time, each first limiting shaft 22 on the sliding platform 4 is just clipped into the first limiting bayonet corresponding to the first limiting block 23 on the base 1, and at this time, each first limiting block 23 is just located between a corresponding pair of first limiting plates 21, therefore, the position of the sliding platform can be further limited, and the use stability and safety of the equipment are improved;

in this embodiment, the left side and the right side of the front part of the sliding platform 4 are respectively vertically provided with a limiting column 24, the left side and the right side of the front part of the base 1 are respectively provided with a second limiting block 25, the rear end of each second limiting block 25 is provided with a second limiting bayonet for the limiting column 24 at the corresponding side to be clamped in, when the sliding platform 4 moves forwards along the base 1 until the locking rod 15 is inserted into the limiting hole of the limiting plate 6 outwards and fixed on the base 1, each limiting column 24 on the sliding platform 4 is just clamped into the second limiting bayonet of the corresponding second limiting block 25 on the base 1 at the moment, so that the position of the sliding platform can be further limited, and the use stability and the safety of the device are further improved;

in the embodiment, a pair of second limiting plates 26 are respectively arranged at the left and the right sides of the middle section of the bottom of the boarding stretcher 3, a second limit shaft 27 is connected between each pair of second limit plates 26, third limit blocks 28 are respectively arranged at the left and right sides of the middle part of the base 1, a third limiting bayonet for the second limiting shaft 27 at the corresponding side to be clamped in is arranged at the rear end of each third limiting block 28, when the getting-on stretcher 3 moves forward along the base 1 until the studs 34 are clamped into the first bayonets and fastened by the locking plate 10 to be limited and fixed on the base 1, at this time, each second limiting shaft 27 on the getting-on stretcher 3 is just clamped into the third limiting bayonet corresponding to the third limiting block 28 on the base 1, and each third limiting block 28 is just positioned between the corresponding pair of second limiting plates 26, therefore, the position of the getting-on stretcher can be further limited, and the use stability and safety of the device are further improved;

when getting on the bus, firstly, the getting-on stretcher 3 is pushed into the base 1 and the getting-on stretcher 3 is folded, the folded getting-on stretcher 3 pushed into the base 1 is firstly positioned and connected with the sliding platform 4 by clamping the cross rod at the front part into the anti-unhooking 5, when the getting-on stretcher 3 moves forwards along the base 1 until the stud 34 is clamped into the first bayonet and fastened by the locking plate 10, each second limiting shaft 27 at the middle section of the bottom of the getting-on stretcher 3 is just clamped into the third limiting bayonet corresponding to the third limiting block 28 on the base 1, and each third limiting block 28 is just positioned between the corresponding pair of second limiting plates 26, so that the getting-on stretcher 3 is limited and fixed on the base 1;

when the getting-on stretcher is fastened on the base by the locking plate 10, the sliding platform 4 also moves forward until the limiting holes on the limiting plates 6 of the sliding platform are aligned with the locking rods 15, at the moment, the locking rods 15 move outward under the action of the elastic force of the return spring 20 and are inserted into the limiting holes on the limiting plates 6 of the sliding platform 4, at the moment, each first limiting shaft 22 at the rear part of the sliding platform 4 is just clamped into a first limiting bayonet corresponding to a first limiting block 23 on the base 1, and each first limiting block 23 is just positioned between a corresponding pair of first limiting plates 21, and each limiting column 24 at the front part of the sliding platform 4 is just clamped into a second limiting bayonet corresponding to a second limiting block 25 on the base 1, so that the sliding platform 4 is limited and fixed on the base 1;

after the stretcher of getting on the bus, when the check lock lever 15 receives unexpected exogenic action and overcomes the elasticity inward movement of reset spring 20 and breaks away from sliding platform 4's limiting plate 6 and promote connecting plate 14 when rotating backward, connecting plate 14 moves and can not promote pull rod 13 backward through the locating pin 19 of arc hole 18 edge pull rod 13, avoid pull rod 13 backward to move and drive the emergence of the stretcher 3 condition of getting on the bus of jam plate 10 unblock, ensure that the stretcher 3 of getting on the bus still is fixed on base 1 by the straining of jam plate 10 this moment, promptly: when the sliding platform 4 is unlocked accidentally, the getting-on stretcher 3 is still fixed on the base 1 in a limiting manner, so that the situation that the getting-on stretcher 3 slides out of the base due to accidental unlocking of the sliding platform 4 is prevented, and the use stability and the use safety of the stretcher bin are greatly improved;

when getting off, can make the stretcher 3 of getting on the bus and the synchronous unblock of sliding platform 4 through applying external force to the handle, specific operation is: the handle 11 is pulled forwards through external force to drive the locking plate 10 to rotate around the rotating shaft 9, so that the rear locking portion of the locking plate 10 rotates forwards and the front connecting portion of the locking plate rotates backwards, when the rear locking portion of the locking plate 10 rotates forwards to the second bayonet to loosen the stud 34 of the getting-on stretcher 3 in the first bayonet to unlock the getting-on stretcher 3 and the base 1, the front connecting portion of the locking plate 10 rotates backwards and drives the pull rod 13 to move backwards, the connecting plate 14 is synchronously pulled to rotate backwards when the pull rod 13 moves backwards, and the connecting plate 14 drives the locking rod 15 to overcome the elastic force of the reset spring 20 to move inwards to be separated from the limiting hole on the limiting plate 6 of the sliding platform 4 to unlock the sliding platform 4 and the base 1 at the same step.

The invention has the beneficial effects that: simple structure, installation easy maintenance, convenient operation, labour saving and time saving to can improve the stability in use and the safety in utilization in stretcher storehouse greatly.