阅读说明：本技术 一种用于跨越舰船内部密封舱门的变形担架 (Deformation stretcher for crossing internal sealing cabin door of ship ) 是由 刘辉 刘福晨 薛文俊 张金旻 王珂男 肖亮 王剑 郭兴刚 邵雪晴 董伟 于 2019-02-14 设计创作，主要内容包括：本发明涉及一种用于跨越舰船内部密封舱门的变形担架,包括：第一框架；第二框架,第一框架的一端与第二框架的一端可转动地连接；第三框架,第三框架的一端与第二框架的另一端可转动地连接,第三框架的另一端设有第一滚轮；第一锁定装置,用于分别锁定第一框架与第二框架、第二框架与第三框架之间的工作角度。本发明的变形担架由于其较小的投影长度和仅需一人拉移的特点,能够适合多种复杂状况下实现变形担架快速且省力、安全的移运,尤其适用于狭窄转运空间的情况下。(The invention relates to a deformation stretcher for crossing a ship internal sealing cabin door, comprising: a first frame; one end of the first frame is rotatably connected with one end of the second frame; one end of the third frame is rotatably connected with the other end of the second frame, and the other end of the third frame is provided with a first roller; the first locking device is used for respectively locking working angles between the first frame and the second frame and between the second frame and the third frame. Due to the characteristics of small projection length and only one person for pulling and moving, the transformation stretcher can be suitable for realizing rapid, labor-saving and safe moving and transporting of the transformation stretcher under various complex conditions, and is particularly suitable for the condition of narrow transportation space.)

1. A transformable stretcher for spanning ship interior sealed hatches comprising:

a first frame;

a second frame, one end of the first frame being rotatably connected with one end of the second frame;

one end of the third frame is rotatably connected with the other end of the second frame, and the other end of the third frame is provided with a first roller;

the first locking device is used for respectively locking working angles between the first frame and the second frame and between the second frame and the third frame.

2. The transformable stretcher for spanning ship interior sealing hatches of claim 1 wherein the first frame is rigidly connected to the second frame, the second frame is rigidly connected to the third frame by the first locking means.

3. The transformable stretcher for sealing hatches across the interior of ships and warships according to claim 2, characterized in that the first locking means comprises: a first locking bar having a fixed end fixed to a side bar of one of the first frame and the second frame, a rotating end circumferentially rotatable about the fixed end of the first locking bar, and/or,

the first locking device includes: and the fixed end of the second locking rod is fixed with a side rod of one of the second frame and the third frame, and the rotating end of the second locking rod can circumferentially rotate around the fixed end of the second locking rod.

4. The deformation stretcher for spanning ship interior sealing hatches of claim 3 wherein the rotating end of the first locking bar is secured to a side bar of the other of the first frame and the second frame and the rotating end of the second locking bar is secured to a side bar of the other of the second frame and the third frame when the deformation stretcher is in an operative condition.

5. The transformable stretcher for spanning ship interior sealing hatches of claim 4 wherein the rotated end of the first locking bar is fixed with a first side bar of the first frame, the fixed end of the first locking bar is fixed with a second side bar of the second frame, the rotated end of the second locking bar is fixed with a second side bar of the second frame, and the fixed end of the second locking bar is fixed with a third side bar of the third frame.

6. The transformable stretcher for spanning ship interior sealing hatches of claim 5 wherein the rotating end of the first locking bar is secured with the first side bar by a threaded connection and the fixed end of the first locking bar is secured with the second side bar by a threaded connection.

7. The transformable stretcher for spanning ship interior sealing hatches of claim 6 wherein the rotating end of the first locking bar and the first side bar are provided with corresponding first through holes, the rotating end of the first locking bar being secured with the first side bar by a first bolt passing through the first through holes; first locking lever the stiff end with second side pole is equipped with the second through-hole that corresponds, through wearing to locate the second bolt in the second through-hole, so that first locking lever the stiff end with second side pole is fixed.

8. The transformable stretcher for spanning ship interior sealing hatches of claim 7 wherein the first side bar is provided with a plurality of the first through holes along the length direction, the first bolts can be inserted into the first through holes at different positions on the first side bar to adjust the working angle of locking between the first frame and the second frame.

9. The transformable stretcher for spanning ship interior sealing hatches of claim 5 wherein the rotating end of the second locking bar is secured with the second side bar by a snap-fit connection and the secured end of the second locking bar is secured with the third side bar by a threaded connection.

10. The transformable stretcher for spanning ship interior sealing hatches according to claim 9, wherein the rotating end of the second locking lever is provided with a first engaging portion, the second side bar is provided with a second engaging portion cooperating with the first engaging portion, and the rotating end of the second locking lever is fixed with the second side bar by the second engaging portion engaging with the first engaging portion; the fixed end of the second locking rod and the third side rod are provided with corresponding third through holes, and a third bolt penetrates through the third through holes to enable the fixed end of the second locking rod and the third side rod to be fixed.

11. The transformable stretcher for spanning ship interior sealing hatches of claim 10 wherein the third side bar is provided with a plurality of the third through holes along the length direction, the third bolts can be inserted into the third through holes at different positions on the third side bar to adjust the working angle of locking between the second frame and the third frame.

12. The deformation stretcher for spanning ship interior sealing hatches of claim 3 further comprising: and the second locking device is used for locking the working angle between the second frame and the third frame.

13. The deformation stretcher for spanning ship interior sealing hatches of claim 12 wherein the rotating end of the second locking bar is not secured to a side bar of the other of the second frame and the third frame or the rotating end of the second locking bar is secured to a side bar of the other of the second frame and the third frame when the deformation stretcher is in an operational state.

14. The deformation stretcher for spanning ship interior sealing hatches as claimed in claim 12, characterized in that the second locking means comprises: and one end of the locking belt is fixed with the third frame, and the other end of the locking belt is fixed with the connecting part of the first frame and the second frame.

15. The deformation stretcher for spanning ship interior sealing hatches as claimed in claim 14 wherein the second locking means further comprises: and the supporting rod is fixed in the third frame, and one end of the locking belt is fixed with the supporting rod.

16. The deformation stretcher for spanning ship interior sealing hatches as claimed in claim 14 wherein the second locking means further comprises: a first length adjustment device for adjusting the length of the locking strap.

17. The transformable stretcher for spanning ship interior sealing hatches of claim 1 wherein the connection of the first frame to the second frame is provided with second rollers.

18. The deformation stretcher for spanning ship interior sealing hatches of claim 1 further comprising: and a suspension device provided on the first frame and the second frame, wherein an operator operates the suspension device to make the transformable stretcher move up or down on the rope.

19. The deformation stretcher for spanning ship interior sealing hatches of claim 1 further comprising: and the third locking device is used for locking the limb positions of the personnel on the transformable stretcher.

20. The transformable stretcher for spanning ship interior sealing hatches of claim 19 characterized in that the third locking means is provided on one or several of: the first locking device, the second frame, and the third frame.

21. The transformable stretcher for spanning ship interior sealing hatches of claim 1 wherein the ends of the first frame and the third frame remote from the second frame are provided with a latch for suspended securement with a transfer device.

22. The transformable stretcher for spanning ship interior sealing hatches of claim 1 wherein the ends of the first frame and the third frame remote from the second frame are provided with second length adjustment means for adjusting the length of the first frame and the third frame.

23. The transformable stretcher for spanning ship interior sealing hatches of claim 1 being used for the transportation of personnel onboard a ship.

Technical Field

The invention relates to a stretcher, in particular to a deformation stretcher for crossing a sealing cabin door inside a ship.

Background

The stretcher is a tool for carrying wounded, is used for rescuing in battle fields or disaster fields or transporting the wounded in short distance, is generated, developed and perfected along with war, and has been in the history of hundreds of years so far. Early rescue of the wounded on battle ground is only limited to bare-handed methods of carrying, embracing, supporting, dragging and the like, and aims to break away from the battlefield environment and avoid secondary damage. The usage of the stretcher is related to the environment, and the special environment needs the stretcher with special purpose.

For example, stretchers used for ships include robinson stretchers, basket stretchers, stokes stretchers and the like. (1) Robinson's stretcher, the common stretcher on the sea ship, it is half hard type of no pole, can lift and drag; (2) a basket stretcher is composed of an external frame made of steel pipes or polyethylene plastics, and the surface of the basket stretcher is made of high-density polyhexene and is commonly used for lifting wounded persons. Some basket stretchers are also provided with a floating device, and can be used for water lifesaving. In addition, the utility model also has a separate basket stretcher, which is divided into two parts, the two parts can be carried separately, when in use, the bolts and the screw holes corresponding to the two parts are connected, and the complete stretcher can be combined. (3) A Stokes stretcher is a special basket stretcher, the basket frame is formed by a rigid frame, a wood strip is inserted in the center of the bottom of the stretcher to place a wounded, the Stokes stretcher can bear static pressure of more than 1000kg, and the Stokes stretcher is suitable for overhead cable transmission of the wounded between offshore ships and is suitable for lifting the wounded on decks.

However, the stretcher used on the ship has the following main problems in the actual transportation process: (1) the existing warship has narrow channel design due to the consideration of factors such as volume, performance and the like, and the existing stretcher cannot realize moving over a threshold and flexible turning under the condition that the space in the warship is limited due to long projection length; (2) the existing stretcher generally needs at least two persons to be respectively positioned at the head and the tail of the stretcher for lifting and carrying, so that the consistency of the pace is difficult to ensure, the carrying work is time-consuming and labor-consuming, and the stability is poor; (3) can not be flexibly adjusted according to the state of an illness, is difficult to fix the body position and is easy to cause iatrogenic secondary injury.

Therefore, it is an urgent technical problem to be solved in the art to provide a high-efficiency and labor-saving transformable stretcher capable of improving the flexibility of transportation in a narrow space.

Disclosure of Invention

The invention aims to provide a high-efficiency and labor-saving deformation stretcher which can improve the flexibility of moving in a narrow space.

The invention provides a deformation stretcher for crossing a sealing cabin door inside a ship, comprising: a first frame; one end of the first frame is rotatably connected with one end of the second frame; one end of the third frame is rotatably connected with the other end of the second frame, and the other end of the third frame is provided with a first roller; the first locking device is used for respectively locking working angles between the first frame and the second frame and between the second frame and the third frame.

Optionally, the first frame and the second frame, and the second frame and the third frame are rigidly connected by a first locking device.

Optionally, the first locking means comprises: a first locking bar, a fixed end of the first locking bar being fixed to a side bar of one of the first frame and the second frame, a rotating end of the first locking bar being circumferentially rotatable around the fixed end of the first locking bar, and/or,

the first locking device includes: and the fixed end of the second locking rod is fixed with the side rod of one of the second frame and the third frame, and the rotating end of the second locking rod can rotate around the fixed end of the second locking rod in the circumferential direction.

Optionally, when the transformable stretcher is in the working state, the rotating end of the first locking bar is fixed with the side bar of the other frame of the first frame and the second frame, and the rotating end of the second locking bar is fixed with the side bar of the other frame of the second frame and the third frame.

Optionally, the rotating end of the first locking rod is fixed to the first side rod of the first frame, the fixed end of the first locking rod is fixed to the second side rod of the second frame, the rotating end of the second locking rod is fixed to the second side rod of the second frame, and the fixed end of the second locking rod is fixed to the third side rod of the third frame.

Optionally, the rotating end of the first locking rod is fixed to the first side rod through a threaded connection, and the fixed end of the first locking rod is fixed to the second side rod through a threaded connection.

Optionally, the rotating end of the first locking rod and the first side rod are provided with corresponding first through holes, and the rotating end of the first locking rod and the first side rod are fixed by penetrating a first bolt into the first through holes; the stiff end and the second side pole of first locking pole are equipped with corresponding second through-hole, and through wearing to locate the second bolt in the second through-hole to make the stiff end and the second side pole of first locking pole fixed.

Optionally, the first side bar is provided with a plurality of first through holes along the length direction, and the first bolt can be inserted into the first through holes at different positions on the first side bar to adjust the working angle of locking between the first frame and the second frame.

Optionally, the rotating end of the second locking rod is fixed to the second side rod in a snap connection manner, and the fixed end of the second locking rod is fixed to the third side rod in a threaded connection manner.

Optionally, the rotating end of the second locking rod is provided with a first clamping portion, the second side rod is provided with a second clamping portion matched with the first clamping portion, and the rotating end of the second locking rod is fixed with the second side rod by clamping the second clamping portion with the first clamping portion; the fixed end of the second locking rod and the third side rod are provided with corresponding third through holes, and a third bolt penetrates through the third through holes to be fixed with the fixed end of the second locking rod and the third side rod.

Optionally, the third side bar is provided with a plurality of third through holes along the length direction, and a third bolt can be inserted into the third through holes at different positions on the third side bar to adjust the working angle of locking between the second frame and the third frame.

Optionally, the method further comprises: and the second locking device is used for locking the working angle between the second frame and the third frame.

Optionally, when the transformable stretcher is in the working state, the rotating end of the second locking bar is not fixed with the side bar of the other frame of the second frame and the third frame, or the rotating end of the second locking bar is fixed with the side bar of the other frame of the second frame and the third frame.

Optionally, the second locking means comprises: and one end of the locking belt is fixed with the third frame, and the other end of the locking belt is fixed with the connecting part of the first frame and the second frame.

Optionally, the second locking device further comprises: the supporting rod is fixed in the third frame, and one end of the locking belt is fixed with the supporting rod.

Optionally, the second locking device further comprises: a first length adjustment device for adjusting the length of the locking strap.

Optionally, a connecting portion of the first frame and the second frame is provided with a second roller.

Optionally, the method further comprises: and the suspension device is arranged on the first frame and the second frame, and an operator can operate the suspension device to enable the transformation stretcher to do ascending motion or descending motion on the quick descending rope.

Optionally, the method further comprises: and the third locking device is used for locking the limb positions of the personnel on the deformed stretcher.

Optionally, the third locking means is provided on one or more of: a first locking device, a second frame and a third frame.

Optionally, the ends of the first frame and the third frame, which are far away from the second frame, are provided with a latch for fixing with a suspension for transferring the handling device.

Optionally, the ends of the first frame and the third frame far away from the second frame are provided with a second length adjusting device for adjusting the length of the first frame and the third frame.

Optionally for the handling of personnel on board the ship.

According to the deformation stretcher for crossing the internal sealing cabin door of the ship, the first frame and the second frame are rotatably connected with each other, so that when the deformation stretcher is in a working state, the working angles between the first frame and the second frame as well as between the second frame and the third frame can be respectively locked through the first locking device; meanwhile, the first idler wheel is arranged at the other end of the third frame, and compared with the existing method that at least two persons are respectively positioned at the head and the tail of the stretcher to lift and transport, the deformation stretcher provided by the invention only needs one person to pull and move, so that the first idler wheel rolls on the placing surface to transport and transport the deformation stretcher, the manpower requirement is reduced, and meanwhile, the efficiency and the flexibility of transporting the deformation stretcher are improved. Particularly in a carrying space with a smaller turning radius, the transformation stretcher can quickly finish turning action in a labor-saving way due to the characteristics of smaller projection length and only one person for pulling and moving.

In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of a transformable stretcher for sealing hatches across the interior of a ship provided by an embodiment of the present invention;

fig. 2 is a first schematic view of a deformation stretcher for sealing hatches across the interior of a ship according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1;

fig. 4 is a schematic view of a deformed stretcher for spanning an interior sealed hatch door of a ship in normal transit;

figure 5 is a schematic view of a deformation boom for sealing hatches across the interior of a ship during abnormal transit (over a second bay);

FIG. 6 is an enlarged view of a portion of the second locking device;

figure 7 is a schematic view of a transformative stretcher for sealing hatches across the interior of a ship while ascending and descending stairs;

fig. 8 is a second schematic view of a modified stretcher for sealing hatches across the interior of a ship according to an embodiment of the present invention;

fig. 9 is a schematic suspension diagram of a transformative stretcher and handling equipment for spanning a ship's interior sealed hatches;

fig. 10 is a schematic view of a deformed stretcher for sealing hatches across the interior of a ship in a non-operative state (when stowed).

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in connection with the preferred embodiments, there is no intent to limit its features to those embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

With reference to fig. 1, the present invention provides a deformation stretcher for spanning a ship interior sealing hatch door comprising: a first frame 21, a second frame 22, and a third frame 23. Wherein one end of the first frame 21 is rotatably connected with one end of the second frame 22. One end of the third frame 23 is rotatably connected to the other end of the second frame 22, and the other end of the third frame 23 is provided with the first roller 11. In this embodiment, the number of the first rollers 11 is two, and the first rollers are respectively disposed on two sides of the third frame 23 along the width direction X; in other embodiments, the number of the first rollers 11 may be one or more than two, and is not particularly limited herein, as long as the transformable stretcher can be moved on the placing surface 100 by the first rollers 11. The transformable stretcher further comprises first locking means for locking the working angle between the first frame 21 and the second frame 22, respectively the second frame 22 and the third frame 23. It should be noted that the "working angle" may be a certain angle that the transformable stretcher is unfolded when in the working state. The working state can be the state when the transformable stretcher needs to be used as a stretcher for carrying people or objects. The placement surface 100 is a flat surface on which a stretcher can be placed.

In this application, the terms "first", "second", etc. are used merely as a distinguishing description to facilitate understanding, but this is not to be construed as indicating or implying relative importance. The "first", "second", etc. may be of the same or different mechanical construction, depending on the particular circumstances of the embodiment.

According to the deformation stretcher for crossing the internal sealing cabin door of the ship, the first frame 21 and the second frame 22 as well as the second frame 22 and the third frame 23 are rotatably connected, so that when the deformation stretcher is in a working state, the working angles between the first frame 21 and the second frame 22 as well as between the second frame 22 and the third frame 23 can be respectively locked through the first locking device, compared with the existing non-deformable stretcher, the projection length of the deformation stretcher on the placing surface 100 is smaller, and the deformation stretcher can adapt to a narrow carrying space such as a battleship; meanwhile, the first roller 11 is arranged at the other end of the third frame 23, and compared with the existing method that at least two persons are respectively positioned at the head and the tail of the stretcher to lift and transport, the deformed stretcher of the invention only needs one person to pull and move, so that the first roller 11 rolls on the placing surface 100 to transport and transport the deformed stretcher, the manpower requirement is reduced, and meanwhile, the efficiency and the flexibility of transporting the deformed stretcher are improved. Particularly in a carrying space with a smaller turning radius, the transformation stretcher can quickly finish turning action in a labor-saving way due to the characteristics of smaller projection length and only one person for pulling and moving.

The first frame 21 and the second frame 22, and the second frame 22 and the third frame 23 can be rigidly connected by a first locking device. When the outside has acting forces in different directions to the transformable stretcher, or when the transformable stretcher is placed non-horizontally, the first frame 21 and the second frame 22, and the second frame 22 and the third frame 23 are respectively and rigidly connected through the first locking device, so the first locking device can also play a supporting role to stably lock the working angle between the first frame 21 and the second frame 22, and between the second frame 22 and the third frame 23, thereby improving the anti-interference performance of the transformable stretcher.

Referring to fig. 1 and 2, in the present embodiment, the first locking means includes: the fixed end 311 of the first locking rod 31 is fixed with the side rod of one of the first frame 21 and the second frame 22, and the rotating end 312 of the first locking rod 31 can rotate circumferentially around the fixed end 311 of the first locking rod 31. The first locking means may further include: and a fixed end 321 of the second locking lever 32 is fixed with a side lever of one of the second frame 22 and the third frame 23, and a rotating end 322 of the second locking lever 32 can rotate circumferentially around the fixed end 321 of the second locking lever 32. In other embodiments, the first locking means may also be another rigid element, or comprise only one locking rod, not specifically limited herein, as long as it is achieved that the first locking means can lock the working angle of the transformable stretcher.

It should be noted that the "fixed end" may be one end that has been fixed to the side bar of the frame in advance when the stretcher is in the non-working state; the rotating end can be one end which is not fixed with the side lever of the frame and can rotate circumferentially by taking the fixed end as a circle center when the stretcher is in a non-working state.

In this embodiment, when the transformable stretcher is in the working state, the rotating end 312 of the first locking lever 31 is fixed to the side lever of the other of the first frame 21 and the second frame 22, and the rotating end 322 of the second locking lever 32 is fixed to the side lever of the other of the second frame 22 and the third frame 23. That is, when the transformable stretcher is in the non-working state, the rotating ends of the first locking lever 31 and the second locking lever 32 are not fixed with the side lever of the frame; when the transformable stretcher is in the working state, the rotating ends of the first locking lever 31 and the second locking lever 32 are fixed with the side levers of the respective frames to lock the working angles between the first frame 21 and the second frame 22, and between the second frame 22 and the third frame 23.

The rotating end 312 of the first locking lever 31 is fixed to the first side bar 211 of the first frame 21, and the fixed end 311 of the first locking lever 31 is fixed to the second side bar 221 of the second frame 22. In the present embodiment, the rotating end 312 of the first locking lever 31 is fixed to the first side bar 211 by means of screw coupling, and the fixed end 311 of the first locking lever 31 is fixed to the second side bar 221 by means of screw coupling. Since the main force of the operator is applied to the first frame 21, the first frame 21 may be pushed or pulled according to the situation, and both ends of the first locking rod 31 are connected by threads, so as to more firmly lock the working angle between the first frame 21 and the second frame 22, thereby preventing the first locking rod 31 from falling off due to the application of forces in different directions to the first frame 21 by the operator. In other embodiments, the fixed end 311 may be fixed to the second side bar 221 by riveting, pin, or other fixing means.

Specifically, referring to fig. 1 in conjunction with fig. 3, the rotating end 312 of the first locking lever 31 and the first side lever 211 are provided with corresponding first through holes 3121, such that the rotating end 312 of the first locking lever 31 is fixed with the first side lever 211 by inserting a first bolt 3122 into the first through hole 3121; the fixed end 311 of the first locking rod 31 and the second side rod 221 are provided with corresponding second through holes, and a second bolt is inserted into the second through holes, so that the fixed end 311 of the first locking rod 31 is fixed with the second side rod 221. In this embodiment, an internal thread is formed in the first through hole 3121 of the first side bar 211, an external thread is formed on the first bolt 3122, and the external thread of the first bolt 3122 is connected with the internal thread of the first through hole 3121, so as to fix the rotating end 312 of the first locking rod 31 to the first side bar 211; similarly, an internal thread is arranged in the second through hole on the second side rod 221, an external thread is arranged on the second bolt, and the external thread of the second bolt is connected with the internal thread in the second through hole to fix the fixed end 311 of the first locking rod 31 to the second side rod 221.

The rotating end 322 of the second locking lever 32 is fixed to the second side rod 221 of the second frame 22, and the fixed end 321 of the second locking lever 32 is fixed to the third side rod 231 of the third frame 23. In this embodiment, the rotating end 322 of the second locking lever 32 is fixed to the second side bar 221 by a snap-fit connection, and the fixed end 321 of the second locking lever 32 is fixed to the third side bar 231 by a screw-thread connection. Because the second locking rod 32 is less disturbed by an operator or the outside, when a person to be carried is placed on the transformable stretcher, the second frame 22, the third frame 23 and the second locking rod 32 can keep stable stress balance due to the action of gravity, so that the rotating end 322 of the second locking rod 32 can be fixed with the second side rod 221 in a snap connection manner, the working angle between the second frame 22 and the third frame 23 can be locked more quickly, and the time cost for the transformable stretcher to enter the working state from the non-working state is reduced.

Specifically, referring to fig. 2, the rotating end 322 of the second locking lever 32 is provided with a first engaging portion 3221, the second side lever 221 is provided with a second engaging portion 3222 engaged with the first engaging portion 3221, and the rotating end 322 of the second locking lever 32 is fixed to the second side lever 221 by the engagement of the second engaging portion 3222 with the first engaging portion 3221. In this embodiment, the second engaging portion 3222 is a first protrusion, the first engaging portion 3221 is a hook, and the groove of the hook is engaged with the first protrusion, so that the rotating end 322 of the second locking lever 32 is fixed to the second side lever 221. In other embodiments, the first engaging portion 3221 and the second engaging portion 3222 may be other engaging structures, and are not limited thereto, as long as the rotating end 322 of the second locking lever 32 can be fixed to the second side lever 221 by the engagement therebetween. As in the threaded connection of the first locking lever 31, the fixed end 321 of the second locking lever 32 and the third side lever 231 are provided with corresponding third through holes 3211, and the fixed end 321 of the second locking lever 32 and the third side lever 231 are fixed by inserting bolts into the third through holes 3211.

Referring to fig. 1, the first side bar 211 is provided with a plurality of first through holes 3121 along the length direction Y, and bolts can be inserted into the first through holes 3121 at different positions on the first side bar 211 to adjust a working angle locked between the first frame 21 and the second frame 22. Similarly, the third side bar 231 may also have a plurality of third through holes 3211 along the length direction Y, and bolts may be inserted into the third through holes 3211 at different positions on the third side bar 231 to adjust the working angle locked between the second frame 22 and the third frame 23. Because the size of the person to be carried and the size of the shape characteristics such as the proportion of the limbs are different, the first through hole 3121 and the third through hole 3211 are respectively formed on the first side bar 211 and the third side bar 231, so that the rotating end 312 of the first locking bar 31 and the fixed end 321 of the second locking bar 32 can be respectively fixed at different positions of the first side bar 211 and the third side bar 231 according to different persons to be carried, so that the transformable stretcher is locked at a proper working angle, and the size requirements of different persons to be carried are better met. In other embodiments, the working angle between the first frame 21 and the second frame 22, and between the second frame 22 and the third frame 23 can be adjusted by the existing seat angle adjuster or the length telescopic adjustment self-locking device.

In a normal use situation, the upper body part of the person to be carried is located on the first frame 21, the hip and thigh parts are located on the second frame 22, and the lower leg part is located on the third frame 23. Due to the fact that the human body has strong adaptability to the bending angles of the lower leg and the upper leg, in most cases, the fixed position of the fixed end 321 of the second locking rod 32 on the third side rod 231 does not need to be adjusted, and the working angle between the second frame 22 and the third frame 23 can be locked as long as an operator performs quick clamping action on the fixed end 321 of the second locking rod 32 and the third side rod 231, and the locking efficiency is high.

Referring to fig. 2 in combination with fig. 1, the second roller 12 is disposed at the connection portion of the first frame 21 and the second frame 22, and can assist the first roller 11 on the uneven placing surface 100, so as to efficiently, laborsaving, and stably transport the deformed stretcher. Referring to fig. 4, the mounting surface 100 has a second convex portion 110. When the deformed stretcher is normally moved, only the first roller 11 is in contact with the placing surface 100 and rolls on the placing surface 100, so that the deformed stretcher moves; when the operator needs to climb over the second raised portion 110, referring to fig. 5, a downward pressure needs to be applied to the first frame 21 so that the second roller 12 is in contact with the placing surface 100 and the first roller 11 is not in contact with the placing surface 100. The magnitude of the force is at least such that the height of the first roller 11 slightly exceeds the height of the second protrusion 110; further, the first roller 11 is moved over the second convex portion 110 by the rolling of the second roller 12 on the mounting surface 100; when the first roller 11 passes over the second protrusion 110, the operator applies an upward pulling force to the first frame 21 again, so that the first roller 11 is again in contact with the placing surface 100, and the second roller 12 is not in contact with the placing surface 100, and returns to the normal moving state. Especially in the ship, because the protruded threshold is arranged between the sealed cabin and the sealed cabin, the deformation stretcher of the invention can greatly improve the efficiency and the flexibility of the internal transportation of the ship, reduce the manpower and ensure the stability of the transportation of the deformation stretcher.

With reference to fig. 1, the deformation stretcher for sealing hatches across the interior of a ship of the invention further comprises: and a second locking device 40 for locking the working angle between the second frame 22 and the third frame 23. The second locking means 40 may be a flexible or rigid structure. When the second locking device 40 is a flexible structure, the flexible structure is not particularly limited as long as the flexible structure can provide a force in a certain direction, such as a tension force. In the present embodiment, the second locking device 40 includes: and a locking strap 41, one end of the locking strap 41 being fixed to the third frame 23, and the other end of the locking strap 41 being fixed to a connecting portion between the first frame 21 and the second frame 22. When the person to be carried is placed on the transformable stretcher, the second frame 22 and the third frame 23 tend to expand due to the gravity, and the second frame 22 and the third frame 23 can be locked at a certain angle by the tension force of the locking belt 41.

The deformation stretcher for spanning the sealing hatch inside the ship is provided with the second locking device 40, so that when the deformation stretcher is in a working state, the rotating end 322 of the second locking rod 32 is not fixed with the side rod of the other frame of the second frame 22 and the third frame 23. That is, the operator does not need to fix the rotating end 322 of the second locking lever 32 to the corresponding side lever, and the locking efficiency of the transformable stretcher can be further improved by reducing this operation step. Therefore, the operator can flexibly select the locking means according to the injury condition of the carried person so as to shorten the time required for locking as much as possible.

For example, when the injury of the person to be carried does not affect the normal use of the lower leg, the operator only needs to fix the rotating end 312 of the first lock lever 31 to the first side lever 211 and does not need to operate the second lock lever 32 in order to shorten the time required for locking. In the case where the lower leg cannot be normally used due to injury of the person to be carried, the operator needs to fix the turning portions of the first and second lock levers 31 and 32 to the first and second side bars 211 and 221, respectively.

In this embodiment, the second locking device 40 may further include: and a support rod 42, the support rod 42 being fixed in the third frame 23, one end of the locking strap 41 being fixed to the support rod 42, and the other end of the locking strap 41 being fixed to a connecting portion between the first frame 21 and the second frame 22. By fixing one end of the locking strip 41 to the support rod 42, the locking strip 41 can be stressed more uniformly and is convenient to fix. In other embodiments, one end of the locking strip 41 may be fixed to the third frame 23 by other means, such as a locking ring, one end of which is fixed to the third side bar 231 and the other end of which is fixed to the locking strip 41, so as to fix one end of the locking strip 41 to the third frame 23.

Referring to fig. 6, the locking strap 41 is further provided with a first locking component 411, and when the first locking component 411 is in a locking state, the locking strap 41 can lock the working angle between the second frame 22 and the third frame 23; when the first locking member 411 is in the unlocked state, the locking strap 41 cannot lock the working angle between the second frame 22 and the third frame 23.

The second locking device 40 further includes: first length adjustment means (not shown) for adjusting the length of the locking strap 41. After the first length adjusting device is arranged, the length of the locking belt 41 can be adjusted according to the shape characteristic quantity such as the size, the limb proportion and the like of different loaded persons, so that the second frame 22 and the third frame 23 are locked at a proper working angle.

With reference to fig. 7, the deformation stretcher for sealing hatches across the interior of a ship of the invention further comprises: and a suspension device 50 provided on the first frame 21 and the second frame 22, wherein an operator operates the suspension device 50 to move the transformation boom up or down on the speed-down rope 200. In this embodiment, the suspension device 50 includes a strap and a quick-drop, one end of the strap is fixed to the first side bar 211 and the second side bar 221, and the other end of the strap is provided with a quick-drop, which is slidably connected with the quick-drop rope 200. Although the specific structure of the speed drop is not shown in the drawings of the present application, those skilled in the art will understand that the speed drop is similar to that in rock climbing. When an operator applies a force, such as pressure, to the speed reduction member, the speed reduction member is unlocked from the speed reduction rope 200, and the speed reduction member can slide relative to the speed reduction rope 200. At this time, the hanging device 50 and the transformation stretcher move downwards together due to the gravity action of the transformation stretcher and the carried person; when the operator does not apply force to the speed reducing piece, the speed reducing piece and the speed reducing rope 200 are in a locking state, and the speed reducing piece cannot slide relative to the speed reducing rope 200.

The deformation stretcher for crossing the internal sealing cabin door of the ship is particularly suitable for carrying people on the ship, the carried people are required to be moved to a bottom deck in most cases of the ship, the deformation stretcher can be used for relatively stably and quickly transferring the carried people from a high floor to the bottom deck with less labor, and compared with the existing non-deformable stretcher which needs at least two people to lift and carry in a staircase, the deformation stretcher is not easily limited by a space with a small turning radius between the stairs of the ship, and the problems that the lifting of multiple people is difficult to coordinate and pace and labor is wasted are also avoided. In other embodiments, the suspension device 50 may also comprise a hoist operated by the operator to move the transformable stretcher up or down on the speed-down rope 200.

With reference to fig. 8, the deformation stretcher for sealing hatches across the interior of a ship of the invention further comprises: third locking means 60 for locking the position of the limbs of the person on the transformable stretcher. The third locking means 60 may be provided on one or more of: a first locking device, a second frame 22 and a third frame 23. The existing stretcher frame design does not accord with the principle of human engineering generally, and the deformed stretcher provided by the invention can effectively reduce the possibility of iatrogenic secondary injury caused by bumping of a carried person in the transferring process by arranging the third locking device 60. In this embodiment, the third locking means 60 may comprise a strap for wrapping around the neck, chest and crotch of the human body. The third locking means 60 may also be used to lock other parts of the human torso. The operator can select the body part to be locked flexibly according to the injury condition of the carried person. In other embodiments, the third locking device 60 may have other structures as long as the function of locking the position of the limb of the person on the transformable stretcher can be achieved, and is not particularly limited herein.

Referring to fig. 9, the ends of the first frame 21 and the third frame 23 away from the second frame 22 are further provided with a latch 24 for fixing with a suspension for transferring the handling device. The handling device may be a ship or a helicopter. In the present embodiment, the padlock portion 24 is a padlock ring, and in other embodiments, the padlock portion 24 may have other structures as long as the transportation device and the transformation stretcher can be firmly fixed, or the transportation device and the transformation stretcher can be firmly fixed through other media.

Referring to fig. 1, the ends of the first frame 21 and the third frame 23 away from the second frame 22 are further provided with second length adjusting means 25 for adjusting the lengths of the first frame 21 and the third frame 23. In this embodiment, the second length adjustment device 25 includes an extension 251 and a second locking assembly 252, the extension 251 being disposed within the side bar, the second locking assembly 252 being for locking the relative position of the extension 251 and the side bar. When the second locking assembly 252 is in the locked state, the relative positions of the extension 251 and the sidebar are locked, i.e., the extension 251 and the sidebar are fixed; when the second locking assembly 252 is in the unlocked state, the relative positions of the extension 251 and the side bar are unlocked, i.e. the extension 251 and the side bar are not fixed, and the operator can pull out the required length of the extension 251 from the side bar according to the actual requirements of the carried person, and further lock the relative positions of the extension 251 and the side bar by locking the second locking assembly 252.

The deformation stretcher for crossing the internal sealing cabin door of the ship can be accommodated into a smaller volume in a non-working state, and referring to fig. 10, the deformation stretcher has small occupied space and is convenient to store and move. In the working condition, as previously described, (1) the working angle between the first frame 21 and the second frame 22, the second frame 22 and the third frame 23 is rapidly locked by the first locking means and/or the second locking means 40; (2) the limb of the wounded is locked by the third locking device 60; (3) the frame is pulled and moved by a single person through the first roller 11 and/or the second roller 12, so that the transformation stretcher is moved and transported efficiently, laborsaving and stably; (4) the deformed stretcher can efficiently, laborsavingly and stably ascend and descend in a narrow inclined staircase through the hanging device 50; (5) the hanging lock part 24 can be used for realizing the airplane suspension and transportation of the whole transformation stretcher.

In summary, the above-mentioned embodiments are provided only for illustrating the principles and effects of the present invention, and not for limiting the present invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.