Stretcher equipped with thoracolumbar vertebra brace for trauma treatment

Abstract

The invention belongs to the technical field of wounded treatment tools, and particularly relates to a stretcher provided with a thoracolumbar vertebra brace for wound treatment. The stretcher equipped with the thoracolumbar vertebra brace for trauma treatment is characterized in that the stretcher comprises a stretcher body, and the stretcher body comprises two frame rods arranged in parallel and bed cloth connected between the two frame rods; the extension length of the bed cloth is smaller than the extension length of the frame rod in the direction parallel to the axis of the frame rod; the thoracolumbar vertebra brace is detachably connected to the stretcher body; and the buckle belt is arranged on the frame rod and / or the thoracolumbar vertebra brace. According to the invention, the detachable thoracolumbar brace is arranged on the stretcher, so that early medical support is provided for the wounded with thoracolumbar injury, and secondary injury caused by movement in the process of transferring the wounded by the stretcher and examining the wounded before an operation is prevented; the wounded person can be reliably fixed on the stretcher by arranging the inserting and buckling belts.

Description

Technical Field

[0001] The invention belongs to the technical field of wounded treatment equipment, and in particular relates to a stretcher equipped with a thoracic and lumbar support for trauma treatment. Background Art

[0002] In medical rescue practice, stretchers are basic tools for transferring the wounded. The rationality of their design and the degree of their functionality are closely related to whether the wounded can receive timely and effective treatment and their ultimate survival rate.

[0003] With the evolution of modern warfare and the increasing complexity of disaster relief scenarios, stretchers are given higher performance expectations, especially for patients with thoracolumbar fractures, who have more stringent requirements for stretcher transportation. Any slight mistake in the stretcher transportation process may cause serious secondary injuries to the wounded, such as aggravated fracture severity, displacement of fracture site, and even irreversible injuries such as paralysis due to spinal cord damage, which will make the wounded face an irreversible tragic ending. At present, there are various types of stretchers on the market, including ordinary stretchers, special stretchers and smart stretchers. These stretchers have their own advantages in structural design, functional characteristics and power mode, but they also inevitably have some shortcomings, such as poor adaptability under special environmental conditions, insufficient optimization of the means of fixing the wounded, and lack of early medical support functions. When the wounded are sent to the designated medical institution, it is often necessary for multiple medical staff to cooperate in the "flat support method" to complete the transportation work, which not only significantly increases the difficulty coefficient of the transportation operation and the complexity of subsequent examinations, but also adds to the painful experience of the wounded.

[0004] Therefore, there is an urgent need to provide a stretcher equipped with a thoracolumbar vertebrae brace for trauma treatment to overcome the above problems.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art in that the wounded are not securely fixed and cannot provide early medical support, and the purpose is to provide a stretcher equipped with a thoracic and lumbar support for trauma treatment.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a stretcher equipped with a thoracolumbar spine brace for trauma treatment, the stretcher comprising:

[0008] A stretcher body, the stretcher body comprising two parallel racks and a bed sheet connected between the two racks; along the axis direction parallel to the racks, the extension length of the bed sheet is less than the extension length of the racks;

[0009] A thoracolumbar brace, wherein the thoracolumbar brace is detachably connected to the stretcher body;

[0010] A buckle belt is arranged on the frame rod and / or the thoracolumbar support.

[0011] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0012] In the present invention, by arranging the detachable thoracolumbar brace on the stretcher, early medical support can be provided to the injured with thoracolumbar injuries, thereby preventing secondary injuries caused by multiple movements during the transfer of the injured on the stretcher and the pre-operative examination of the injured; and by arranging the buckle belt, the injured can be reliably fixed on the stretcher.

[0013] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of a stretcher equipped with a thoracic and lumbar spine brace for trauma treatment according to an embodiment of the present invention;

[0016] Figure 2 It is a structural schematic diagram of a stretcher in an embodiment of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of a thoracolumbar support in an embodiment of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the internal airbag of the thoracolumbar support in an embodiment of the present invention;

[0019] Figure 5 It is a structural schematic diagram of a stretcher equipped with a thoracic and lumbar spine brace for trauma treatment in another viewing angle in an embodiment of the present invention;

[0020] Figure 6 A schematic diagram of the structure of an automatic control component in an embodiment of the present invention;

[0021] Figure 7 for Figure 6 A magnified view of the structure at center A;

[0022] Figure 8 for Figure 6 A magnified view of the structure at B in the middle;

[0023] Fig. 9 It is a structural schematic diagram of a stretcher equipped with a thoracic and lumbar spine brace for trauma treatment in another viewing angle in an embodiment of the present invention;

[0024] Fig.10 for Fig. 9 A magnified view of the structure at C in the middle;

[0025] Fig.11 It is a structural schematic diagram of a stretcher equipped with a thoracic and lumbar spine brace for trauma treatment in another viewing angle in an embodiment of the present invention;

[0026] Fig.12 for Fig.11 A magnified view of the structure at D in the middle;

[0027] Fig.13 It is a structural schematic diagram of a stretcher equipped with a thoracic and lumbar spine brace for trauma treatment in another viewing angle in an embodiment of the present invention;

[0028] Fig.14 for Fig.13 A magnified view of the structure at E in the middle;

[0029] Fig.15 Schematic diagram of the structure of part of the automatic control component in an embodiment of the present invention.

[0030] Description of the main components in the figure:

[0031] 1. stretcher body; 11. frame rod; 111. first rod; 112. second rod; 12. bed cloth; 13. anti-slip cover; 2. thoracolumbar support; 21. airbag; 211. first airbag; 212. second airbag; 213. air inlet pipeline; 214. air outlet pipeline; 2141. plugging cap; 215. first exhaust pipeline; 2151. first airbag pressure safety valve; 216. second exhaust pipeline; 2161. second airbag pressure safety valve; 3. buckle belt; 4. air pump; 41. connecting pipe; 42. first air pump; 43. second air pump; 44. transition pipe; 441. regulating valve; 5. first automatic control component; 51. first shaking assembly; 511. first moving block; 512. first return spring; 513. first rack ; 514, first housing; 515, first stop protrusion; 52, first transmission assembly; 521, first gear; 522, first L-shaped member; 523, first transmission rod; 524, first transmission guide rail member; 525, first transmission plate; 526, second housing; 527, first limit guide protrusion; 53, second transmission assembly; 531, first guide rail member; 532, first guide rod; 533, second return spring; 534, first connecting rod; 535, first wedge-shaped transmission block; 54, third transmission assembly; 541, second rack; 5411, first protrusion; 5412, first matching transmission block; 542, second gear; 543, third rack; 5431, second protrusion; 544, third housing ; 5441, the first limit guide block; 5442, the first connecting spring; 55, the first regulating component; 551, the first air inlet switch; 552, the first air outlet switch; 56, the first buffer component; 561, the first pillar; 562, the first support plate; 563, the first buffer spring; 564, the second support plate; 565, the first guide column; 6, the second automatic control component; 61, the second shaking component; 611, the second moving block; 612, the third return spring; 613, the fourth rack; 614, the fourth shell; 615, the second stop protrusion; 62, the fourth transmission component; 621, the third gear; 623, the second transmission rod; 624, the second transmission guide rail; 625, the second transmission plate; 626, the fifth shell; 627, the first Second limiting guide protrusion; 63, fifth transmission assembly; 631, second guide rail member; 632, second guide rod; 633, fourth return spring; 634, second connecting rod; 635, second wedge-shaped transmission block; 64, sixth transmission assembly; 641, fifth rack; 6411, third protrusion; 6412, second matching transmission block; 642, fourth gear; 643, sixth rack; 6431, fourth protrusion; 644, sixth housing; 6441, second limiting guide block; 6442, second connecting spring; 65, second regulating assembly; 651, second air inlet switch; 652, second air outlet switch; 66, second buffer assembly; 661, second pillar; 662, third support plate; 663, second buffer spring;664, the fourth support plate; 665, the second guide column. ;

[0032] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0034] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figures 1 to 15 As shown, the present invention provides a stretcher equipped with a thoracolumbar spine brace for trauma treatment, the stretcher comprising:

[0037] A stretcher body 1, the stretcher body 1 comprising two parallel racks 11 and a bed sheet 12 connected between the two racks 11; along the axis direction parallel to the racks 11, the extension length of the bed sheet 12 is less than the extension length of the racks 11;

[0038] A thoracolumbar brace 2, wherein the thoracolumbar brace 2 is detachably connected to the stretcher body 1;

[0039] The buckle belt 3 is arranged on the frame rod 11 and / or the thoracolumbar support 2.

[0040] In the present invention, by arranging the detachable thoracolumbar brace 2 on the stretcher, early medical support can be provided to the injured with thoracolumbar injuries to prevent secondary injuries caused by multiple movements during the transfer of the injured on the stretcher and the pre-operative examination of the injured; and by arranging the buckle belt 3, the injured can be reliably fixed on the stretcher.

[0041] In a specific implementation of this embodiment, the buckle belt 3 is arranged on the frame rod 11; when the injured person wears the thoracolumbar support 2 and lies on the stretcher, the buckle belt 3 is used to fix the injured person on the stretcher;

[0042] The buckle belts 3 include at least three buckle belts, which correspond to the legs, buttocks (crotch) and chest area of ​​the injured person wearing the thoracolumbar support 2, and the buckle belts 3 fix the injured person on the stretcher;

[0043] It can be understood that a plurality of buckle belts 3 can be provided corresponding to the three parts (legs, buttocks, and chest).

[0044] In another specific implementation of this embodiment, the thoracolumbar brace 2 is provided with a buckle belt 3, and when it is not connected to the stretcher (the frame rod 11), the male buckle and the female buckle of the buckle belt 3 are buckled around the outer periphery of the thoracolumbar brace 2;

[0045] When it is connected to the stretcher, the male buckle of the buckle belt 3 on the thoracolumbar brace 2 is connected to the female buckle of the buckle belt 3 on the stretcher; the female buckle of the buckle belt 3 on the thoracolumbar brace 2 is connected to the male buckle of the buckle belt 3 on the stretcher, and the thoracolumbar brace 2 is fixed on the stretcher;

[0046] In addition, there are buckle belts 3 arranged on the stretcher at the position of the injured person's legs and buttocks, which are used to fix the injured person wearing the thoracolumbar support 2 on the stretcher.

[0047] In a specific implementation of this embodiment, a handle portion is provided at the axially extending end of the rack rod 11, and an anti-slip sleeve 13 is provided on the handle portion;

[0048] The anti-slip sleeve 13 is printed with anti-slip patterns.

[0049] When transferring the wounded on the stretcher, the rescuers at both ends of the frame rod 11 hold the anti-slip sleeves 13 and lift the stretcher.

[0050] Please refer to the attached Figure 1 , Attachment Figure 2 and attached Figure 5 In a specific implementation of this embodiment, the rack rod 11 includes a first rod 111 and a second rod 112 that are rotatably connected;

[0051] The thoracolumbar support 2 detachable from the stretcher is arranged on the bed cloth 12 between the first rods 111 of the two parallel frame rods 11 .

[0052] Through the above arrangement, the stretcher provided by the present invention can be folded up when not in use, shortening the length to reduce space occupation.

[0053] Please refer to the attached Figure 5 In a specific implementation of this embodiment, the side of the first rod 111 facing closer to the ground and the side of the second rod 112 facing closer to the ground can rotate towards each other.

[0054] In a specific implementation of this embodiment, the first rod 111 facing the side close to the ground can be rotated toward the side close to the second rod 112 facing the ground, and / or the second rod 112 facing the side close to the ground can be rotated toward the side close to the second rod 112 facing the ground;

[0055] The side of the first rod 111 facing away from the ground and the side of the second rod 112 facing away from the ground cannot rotate towards each other, so when the injured person lies on the stretcher, the stretcher will not flip upward;

[0056] The foldable and rotatable design of the stretcher is a conventional technique in the art, and is not the inventive point of the present invention, and will not be described in detail here.

[0057] In a specific implementation of this embodiment, a support structure is provided on the side of the stretcher body 1 facing the ground, and the support structure supports the stretcher above the ground.

[0058] In a specific implementation of this embodiment, the support structure is a support column;

[0059] The distance between the bottom surface of the support column and the stretcher body 1 on the side of the support column close to the end of the first rod 111 away from the second rod 112 is (slightly) greater than the distance between the bottom surface of the support column and the stretcher body 1 on the side of the support column close to the end of the first rod 111 close to the second rod 112;

[0060] The distance between the bottom surface of the support column and the stretcher body 1 on the side of the support column close to the end of the second rod 112 away from the first rod 111 is (slightly) greater than the distance between the bottom surface of the support column and the stretcher body 1 on the side of the support column close to the end of the second rod 112 close to the first rod 111;

[0061] The above arrangement enables the bottom surface of the support column to form an inclined surface, so that when the support column supports the stretcher body 1 to unfold, the stretcher body 1 can be fully unfolded;

[0062] The (slightly) larger than may be larger than 3-6 mm.

[0063] In a specific implementation of this embodiment, the support structure is retractable, and the injured person can be supported at a higher plane height by extending the support structure;

[0064] The specific retractable structure is a conventional technical setting in the art and will not be described in detail here.

[0065] In a specific implementation of this embodiment, an anti-skid pad is installed on the bottom surface of the support column (the end surface of the support column supported on the ground), and the anti-skid pad is a structural member made of rubber or silicone material;

[0066] The side of the anti-skid pad facing the ground is provided with anti-skid patterns.

[0067] In another specific implementation of this embodiment, the support structure is a universal wheel assembly (not shown in the figure).

[0068] Please refer to the attached Figure 5 In a specific implementation of this embodiment, the support structure can rotate relative to the stretcher body 1;

[0069] The support structure can be rotated from a state perpendicular to (the frame rod 11 of) the stretcher body 1 to a state parallel to (the frame rod 11 of) the stretcher body 1 .

[0070] In a specific implementation of this embodiment, the support structures are disposed at the four corners of the stretcher body 1 .

[0071] Please refer to the attached Figure 1 To Attachment Figure 5 In a specific implementation of the present embodiment, (when the injured person lies on the stretcher) an airbag 21 parallel to the axial direction of the frame rod 11 is provided on the body-contacting side (inner side) of the thoracolumbar support 2 close to the bed cloth 12; the airbag 21 includes a first airbag 211 and a second airbag 212 parallel to each other, and the first airbag 211 and the second airbag 212 support the spine of the injured person on the side of the bed cloth 12 away from the ground; the first airbag 211 and the second airbag 212 support the spine of the injured person to prevent it from directly contacting the bed cloth 12 of the stretcher body 1;

[0072] The airbag 21 is provided with:

[0073] An air intake pipeline 213, on which an air intake check valve is arranged; the arrangement of the air intake check valve enables the air intake pipeline 213 to only allow gas to be injected into the airbag 21;

[0074] An air outlet pipeline 214 is provided with an air outlet check valve; the setting of the air outlet check valve allows the air outlet pipeline 214 to only allow the gas in the airbag 21 to be discharged outward; the air outlet pipeline 214 is connected to the transition pipe 44; the other end of the transition pipe 44 is connected to the outside;

[0075] The transition pipe 44 is provided with a regulating valve 441 , and the regulating valve 441 can adjust the opening of the transition pipe 44 .

[0076] In a specific implementation of this embodiment, the transition pipe 44 is fixed on the stretcher body 1 .

[0077] In a specific implementation of this embodiment, a blocking cap 2141 is provided at one end of the air outlet pipe 214 away from the airbag 21;

[0078] When the injured person wearing the thoracolumbar brace 2 is detached from the stretcher, the blocking cap 2141 is buckled on the air outlet pipeline 214, and the air outlet pipeline 214 is blocked; when the air outlet pipeline 214 is blocked, the gas in the airbag 21 will not be discharged through the air outlet pipeline 214;

[0079] Of course, if necessary (when there is too much gas in the airbag 21), the air outlet pipe 214 can also be controlled to release gas for a period of time. After a period of time, the blocking cap 2141 is buckled on the air outlet pipe 214 to block the air outlet pipe 214.

[0080] Please refer to the attached Figure 3 and attached Figure 4 In a specific implementation of this embodiment, the airbag 21 is further provided with:

[0081] A first exhaust pipeline 215, on which a first airbag pressure safety valve 2151 is provided;

[0082] The second exhaust pipeline 216, the diameter of the second exhaust pipeline 216 is greater than the diameter of the first exhaust pipeline 215; the second exhaust pipeline 216 is provided with a second airbag pressure safety valve 2161; the opening pressure of the second airbag pressure safety valve 2161 is greater than the opening pressure of the first airbag pressure safety valve 2151.

[0083] It can be understood that when the airbag 21 is overfilled with gas and the opening pressure of the first airbag pressure safety valve 2151 on the first exhaust pipeline 215 is reached, the first airbag pressure safety valve 2151 opens;

[0084] When the first airbag pressure safety valve 2151 operates at the maximum diameter, the gas pressure in the airbag 21 is still relatively high. When the opening pressure of the second airbag pressure safety valve 2161 on the second exhaust pipe 216 is reached, the second airbag pressure safety valve 2161 opens.

[0085] In the present invention, by providing the first exhaust pipeline 215 and the second exhaust pipeline 216, the problem of excessive air pressure in the airbag 21, which may cause potential danger to the injured, is avoided.

[0086] Please refer to the attached Figure 1 , Attachment Figure 5 , Attachment Figure 6 , Attachment Fig. 9 , Attachment Fig.11 and attached Fig.13 In a specific implementation of this embodiment, the stretcher further includes:

[0087] An air pump 4, wherein the air injection end of the air pump 4 is connected to an air inlet pipeline 213 provided on the air bag 21 through a provided connecting pipe 41;

[0088] An automatic control component is arranged at one end of the frame rod 11 away from the bed cloth 12 and the bed cloth 12 is provided with one end of the thoracolumbar support 2; the automatic control component controls the air pump 4 to inject air into the airbag 21 and controls the opening of the regulating valve 441 provided on the transition pipe 44 according to the left and right shaking of the stretcher.

[0089] Please refer to the attached Figure 1 , Attachment Figure 6 , Attachment Fig. 9 , Attachment Fig.11 and attached Fig.13 In a specific implementation of the present embodiment, the air pump 4 includes a first air pump 42 and a second air pump 43, the first air pump 42 is connected to the first airbag 211 (through the set connecting pipe 41), and the second air pump 43 is connected to the second airbag 212 (through the set connecting pipe 41).

[0090] In a specific implementation of this embodiment, the connecting pipe 41 is fixed on the stretcher body 1 .

[0091] In a specific implementation of this embodiment, the connecting tube 41 and / or the transition tube 44 are connected to the stretcher body 1 by means of a Velcro or a binding rope (not shown in the figure).

[0092] Please refer to the attached Figure 6 To Attachment Fig.15 In a specific implementation of this embodiment, the automatic control component includes a first automatic control component 5 for controlling the air inlet and outlet of the first airbag 211 and a second automatic control component 6 for controlling the air inlet and outlet of the second airbag 212;

[0093] When the first automatic control component 5 controls the first air pump 42 to open, air is injected into the first airbag 211; when the first automatic control component 5 controls the regulating valve 441 on the transition pipe 44 connected to the air outlet pipeline 214 of the first airbag 211 to open, the gas in the first airbag 211 is discharged into the atmosphere;

[0094] When the second automatic control component 6 controls the second air pump 43 to open, air is injected into the second airbag 212; when the second automatic control component 6 controls the regulating valve 441 on the transition pipe 44 connected to the air outlet pipe 214 of the second airbag 212 to open, the gas in the second airbag 212 is discharged into the atmosphere.

[0095] In a specific implementation of this embodiment, the self-control component is arranged on a side of the first rod 111 of the rack rod 11 away from the second rod 112;

[0096] The first automatic control component 5 and the second automatic control component 6 of the automatic control component are symmetrically arranged in structure.

[0097] In another specific implementation of this embodiment, the automatic control component includes two groups, and the two groups of automatic control components are respectively arranged on a side of the first rod 111 away from the second rod 112 and a side of the second rod 112 away from the first rod 111;

[0098] The first automatic control components 5 of the two groups of automatic control components are connected to the first airbag 211 (through the connecting pipe 41, which is a three-way pipe), and the second automatic control components 6 of the two groups of automatic control components are connected to the second airbag 212 (through the connecting pipe 41, which is a three-way pipe).

[0099] When the injured person wearing the thoracolumbar brace 2 is sent to the hospital, he or she can wear the thoracolumbar brace 2 to undergo testing (blood test, X-ray test, etc.);

[0100] When the injured person is separated from the stretcher, the transition pipe 44 is unplugged (and the air outlet pipe 562 is blocked with the blocking cap 2141), the connecting pipe 41 is unplugged, and the buckle belt 3 is released.

[0101] In a specific implementation of this embodiment, the first automatic control component 5 controls the first air pump 42 to inject air into the first airbag 211;

[0102] The second automatic control component 6 controls the second air pump 43 to inject air into the second airbag 212 .

[0103] Please note that please refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 5 and attached Figure 6 In this embodiment, the description of the left side and the right side is defined by the left hand side and the right hand side of the rescuer;

[0104] When two rescuers lift the stretcher, both of them face the side of the first rod 111 away from the second rod 112 (the side of the second rod 112 close to the first rod 111), that is, the rescuer holding the first rod 111 has his back facing the injured person (the injured person's feet facing the buttocks of the rescuer at the front side), the rescuer holding the second rod 112 faces the injured person (the injured person's head facing the abdomen of the rescuer at the back side), and the rescuer holding the second rod 112 (the rescuer at the back side) faces the back of the rescuer holding the first rod 111 (the rescuer at the front side);

[0105] The left hand side of the rescuer holding the first rod 111 is the left side, and the right hand side of the rescuer holding the first rod 111 is the right side.

[0106] In a specific implementation of this embodiment, two rescuers lift the stretcher, and the stretcher will sway in height from left to right to a certain extent;

[0107] When the left side of the stretcher is lower than the right side (the right side of the stretcher is higher than the left side), the first automatic control component 5 controls the first air pump 42 to inject air into the first airbag 211;

[0108] When the right side of the stretcher is lower than the left side (the left side of the stretcher is higher than the right side), the second automatic control component 6 controls the second air pump 43 to inject air into the second airbag 212 .

[0109] In a specific implementation of this embodiment, the first automatic control component 5 includes:

[0110] The first shaking assembly 51 includes a first moving block 511, a first return spring 512 connected to the first moving block 511, and a first rack 513 connected to an end of the first moving block 511 away from the first return spring 512; when the stretcher is laid flat, the first return spring 512 is in a natural state (no compression and no stretching) or in a compressed state; when the left side of the stretcher is lower than the right side, when the first moving block 511 moves to the left, the first return spring 512 is compressed or further compressed.

[0111] In a specific implementation of this embodiment, the first shaking assembly 51 further includes a first housing 514, the first moving block 511 and the first return spring 512 are located in the first housing 514, one end of the first rack 513 connected to the first moving block 511 is located in the first housing 514, and one end of the first rack 513 away from the first moving block 511 at least partially extends out of the first housing 514;

[0112] One end of the first return spring 512 away from the first moving block 511 is connected to the inner wall of the first housing 514;

[0113] The first housing 514 is also provided with a first stop protrusion 515, and the first stop protrusion 515 limits the maximum distance between the first moving block 511 and the inner wall of the first housing 514 connected to the first return spring 512;

[0114] When the left side of the stretcher is lower than the right side, when the first moving block 511 moves to the left side due to the leftward tilting component of its own weight and the shaking external force, the distance that the first rack 513 extends out of the first shell becomes shorter.

[0115] In a specific implementation of this embodiment, the toothed surface of the first rack 513 is arranged on a side of the first rack facing the ground and at an end of the first rack 513 away from the first moving block 511 .

[0116] Please refer to the attached Figure 6 , Attachment Figure 7 , Attachment Fig. 9 and attached Fig.10 In a specific implementation of this embodiment, the first automatic control component 5 also includes:

[0117] The first transmission assembly 52 includes a first gear 521, which is meshed with the first rack 513; a first L-shaped component 522 is connected to the central axis of the first gear 521, and the central axis of the first gear 521 is fixedly connected to the first L-shaped component 522; the first transmission assembly 52 also includes a vertically arranged first transmission rod 523, an end of the first transmission rod 523 close to the first L-shaped component 522 is provided with an arc-shaped first transmission guide member 524, and an end of the first L-shaped component 522 away from the central axis of the first gear 521 extends into the first transmission guide member 524 (the first transmission guide member 524 is hung on the end of the first L-shaped component 522 away from the first gear 521); a first transmission plate 525 is provided at the end of the first transmission rod 523 away from the first transmission guide member 524; the first gear 521 and the central axis of the first gear 521 are fastened (for example, keyed).

[0118] In a specific implementation of the present embodiment, the first transmission assembly 52 further includes: a second housing 526, the first rack 513 at least partially extends into the second housing 526, the first gear 521, the first L-shaped member 522 and the first transmission guide rail member 524 are arranged in the second housing 526; the first transmission plate 525 arranged on the first transmission rod 523 at least partially extends out of the second housing 526; a first limiting guide protrusion 527 is further arranged in the second housing 526 along the vertical direction (perpendicular to the axial direction of the frame rod 11 when the stretcher is in a flat state and perpendicular to the direction of the bed cloth 12 when the stretcher is in a flat state), and the first limiting guide protrusion 527 limits the first transmission rod 523 to move only in the vertical direction; along the direction parallel to the vertical direction, the projection of the first transmission plate 525 is larger than the projection of the second housing 526;

[0119] When the left side of the stretcher is lower than the right side, when the first moving block 511 moves to the left, the distance that the first rack 513 extends out of the first shell becomes shorter, the first gear 521 rotates counterclockwise, the first L-shaped component 522 rotates counterclockwise, the first L-shaped component 522 slides in the first transmission guide rail 524, and the first transmission rod 523 moves vertically upward.

[0120] In a specific implementation of this embodiment, the first transmission guide rail member 524 is an arc-shaped structural member, a first guide rail is disposed inside the first transmission guide rail member 524, and a horizontal plane height at a middle position of the first guide rail is greater than a horizontal plane height at two sides (sides) of the first guide rail;

[0121] When the stretcher is in a flat state, the first movable block 511 is at the rightmost side (of its movable travel), the first rack 513 extends out of the first shell 514 and into the second shell 526 to the maximum length, the end of the first L-shaped member 522 away from the first gear 521 extends into the first transmission guide rail member 524 and the end of the first L-shaped member 522 extending into the first transmission guide rail member 524 contacts the middle position of the first guide rail of the first transmission guide rail member 524.

[0122] In a specific implementation of this embodiment, the first automatic control component 5 further includes:

[0123] The second transmission assembly 53 comprises a first vertically arranged first guide rail member 531, a first guide rod 532 arranged parallel to the first guide rail member 531, a second return spring 533 sleeved on the outer side of the first guide rod 532, a first connecting rod 534, and a first wedge-shaped transmission block 535 arranged parallel to the first guide rail member 531, one end of the first connecting rod 534 passes through the first guide rod 532 along the radial direction of the first guide rod 532 and at least partially extends into the first guide rail of the first guide rail member 531, and the other end of the first connecting rod 534 is connected to the first wedge-shaped transmission block 535; the end surface of the first wedge-shaped transmission block 535 on the side away from the ground, the horizontal height of the side close to the first guide rail member 531 is greater than the horizontal height of the side away from the first guide rail member 531; along the vertical direction, the projection of the first wedge-shaped transmission block 535 at least partially overlaps with the projection of the first transmission plate 525;

[0124] The first guide rod 532 is provided with a first sliding groove (not marked in the figure) corresponding to the first guide rail;

[0125] The first connecting rod 534 passes through the first sliding slot, one end of the first connecting rod 534 extends into the first guide rail of the first guide rail member 531, and the other end of the first connecting rod 534 is connected to the first wedge-shaped transmission block 535;

[0126] One end of the second return spring 533 is connected to the end of the first guide rod 532 away from the first wedge-shaped transmission block 535, and the other end abuts (or is connected to) the first connecting rod 534 provided at the end of the first guide rod 532 close to the first wedge-shaped transmission block 535;

[0127] When the first wedge-shaped transmission block 535 moves in the vertical direction, the first connecting rod 534 moves vertically upward in the first sliding groove and the first guide rail, and the second return spring 533 is compressed.

[0128] When the left side of the stretcher is lower than the right side, when the first moving block 511 moves to the left (the first return spring 512 is compressed or further compressed), the distance that the first rack 513 extends out of the first shell becomes shorter, and the first rack 513 drives the first gear 521 to rotate counterclockwise, and the first transmission rod 523 moves vertically upward, driving the first transmission plate 525 to contact the first wedge transmission block 535, and the first wedge transmission block 535 moves vertically upward.

[0129] In a specific implementation of this embodiment, the first automatic control component 5 further includes:

[0130] A third transmission assembly 54, the third transmission assembly 54 comprises a second rack 541; a first matching transmission block 5412 is disposed at one end of the second rack 541 close to the first guide rail member 531;

[0131] The end surface of the first matching transmission block 5412 close to the ground has a height closer to the first guide rail member 531 than the end surface of the first matching transmission block 5412 far from the first guide rail member 531.

[0132] The slope of the end surface of the first matching transmission block 5412 facing the side close to the ground corresponds to the slope of the end surface of the first wedge-shaped transmission block 535 facing the side away from the ground;

[0133] When the first wedge-shaped transmission block 535 moves upward, it contacts the first matching transmission block 5412 of the second rack 541, so that the second rack 541 moves to the side (right side) away from the first guide rail member 531;

[0134] The toothed surface (toothed side) of the second rack 541 is arranged on a side of the second rack 541 close to the ground and on an end away from the first guide rail member 531;

[0135] The third transmission assembly 54 also includes a second gear 542 and a third rack 543. The second gear 542 is meshed with the second rack 541. The third rack 543 is arranged in parallel with the second rack 541, and the level of the third rack 543 is lower than the level of the second rack 541. In the vertical direction, the projection of the second rack 541 at least partially overlaps with the third rack 543. The position of the rotating shaft of the second gear 542 is fixed, and the second gear 542 can rotate relative to its rotating shaft. The third rack 543 is meshed with the second gear 542. The second rack 541 is away from the third rack 543 (the non-toothed side of the second rack 541) and the second rack 5 A first protrusion 5411 is provided on a side away from the first guide rail member 531; a protrusion height of the first protrusion 5411 at one end close to the first guide rail member 531 is greater than a protrusion height of the first protrusion 5411 at one end away from the first guide rail member 531; a second protrusion 5431 is provided on one end of the third rack 543 away from the second rack 541 (the non-toothed side of the third rack 543) and on a side of the third rack 543 close to the first guide rail member 531; a protrusion height of the second protrusion 5431 at one end close to the first guide rail member 531 is less than a protrusion height of the second protrusion 5431 at one end away from the first guide rail member 531;

[0136] When the left side of the stretcher is lower than the right side, when the first moving block 511 moves to the left, the distance that the first rack 513 extends out of the first shell becomes shorter, and the first rack 513 drives the first gear 521 to rotate counterclockwise, and the first transmission rod 523 moves vertically upward, driving the first transmission plate 525 to contact the first wedge-shaped transmission block 535, and the first wedge-shaped transmission block 535 moves upward. The first matching transmission block 5412 of the second rack 541 is squeezed by the first wedge-shaped transmission block 535 and moves to the right side (away from the first guide rail member 531), driving the second gear 542 to rotate clockwise, and then driving the third rack 543 to move to the left (close to the first guide rail member 531).

[0137] Please refer to the attached Figure 6 , Attachment Figure 7 , Attachment Fig.13 and attached Fig.14 In a specific implementation of this embodiment, the first automatic control component 5 also includes:

[0138] The first regulating component 55 includes a first air inlet switch 551 and a first air outlet switch 552; when the first air inlet switch 551 is turned on, the air pump 4 injects gas into the airbag 21 through the air inlet pipe 213; when the first air outlet switch 552 is turned on, the regulating valve 441 on the transition pipe 44 is opened, and the air outlet pipe 214 is connected to the outside atmosphere; when the second rack 541 moves in a direction away from the first guide rail member 531 (to the right), until the first protrusion 5411 hits the first recent switch 551, the first air inlet switch 551 is turned on; when the third rack 543 moves in a direction close to the first guide rail member 531 (to the left), until the second protrusion 5431 hits the first air outlet switch 552, the first air outlet switch 552 is turned on.

[0139] In a specific implementation of this embodiment, the first air inlet switch 551 and the first air outlet switch 552 are control knobs.

[0140] Alternatively, the first air inlet switch 551 and the first air outlet switch 552 are push switches.

[0141] When the left side of the stretcher is lower than the right side, when the first moving block 511 moves to the left, the distance that the first rack 513 extends out of the first housing becomes shorter, the first rack 513 drives the first gear 521 to rotate counterclockwise, the first transmission rod 523 moves vertically upward, drives the first transmission plate 525 to contact the first wedge-shaped transmission block 535, the first wedge-shaped transmission block 535 moves upward, and the second rack 541 is squeezed by the first wedge-shaped transmission block 535 and moves to the right, driving the second gear 542 to rotate clockwise, thereby driving the third rack 543 to move leftward;

[0142] The first protrusion 5411 contacts the first air inlet switch 551, and the first air inlet switch 551 is rotated or further rotated ( / pressed or further pressed). As the degree of rotation ( / pressing degree) increases, the working voltage ( / current) of the air pump 4 (first air pump 42) increases, and the amount of gas injected per unit time into the airbag 21 (first airbag 211) increases;

[0143] When the second protrusion 5431 contacts the first air outlet switch 552, the first air outlet switch 552 is rotated or further rotated ( / pressed or further pressed). As the degree of rotation ( / degree of pressing) increases, the opening of the regulating valve 441 on the transition pipe 44 increases, and the amount of gas discharged per unit time in the airbag 21 (first airbag 211) increases.

[0144] In a specific implementation of the present embodiment, when the second rack 541 moves in a direction away from the first guide rail member 531 (to the right), the first protrusion 5411 abuts against the first air inlet switch 551, causing the first air inlet switch 551 to be turned on, and before the third rack 543 moves in a direction close to the first guide rail member 531 (to the left), the second protrusion 5431 abuts against the first air outlet switch 552, causing the first air outlet switch 552 to be turned on.

[0145] In a specific implementation of this embodiment, the third transmission assembly 54 further includes a third housing 544. The second gear 542 and the third rack 543 are disposed in the third housing 544, and the second rack 541 at least partially extends out of the third housing 544; along the projection parallel to the vertical direction, the second rack 541 at least partially overlaps with the projection of the first wedge-shaped transmission block 535;

[0146] A first limiting guide block 5441 is further disposed in the third housing 544 , and the first limiting guide block 5441 limits the second rack 541 and the third rack 543 to move only in the horizontal direction.

[0147] Please refer to the attached Fig.15 In a specific implementation of this embodiment, a first connecting spring 5442 is provided at one end of the third rack 543 away from the first guide rail member 531;

[0148] The other end of the first connecting spring 5442 is connected to the inner wall of the third shell 544 .

[0149] Please refer to the attached Figure 6 , Attachment Figure 7 , Attachment Fig.11 and attached Fig.12 In a specific implementation of this embodiment, the first automatic control component 5 further includes a first buffer component 56, and the first buffer component 56 is arranged on a side of the first transmission plate 525 away from the ground;

[0150] The first buffer component 56 includes:

[0151] A first pillar 561, wherein the first pillar 561 is vertically arranged, and a plurality of the first pillars 561 are arranged;

[0152] A first support plate 562, wherein the first support plate 562 is fixed to one end of the first support column 561 close to the first transmission plate 525;

[0153] A first buffer spring 563, wherein the first buffer spring 563 is sleeved on the first pillar 561, and a plurality of the first buffer springs 563 are provided corresponding to the first pillar 561;

[0154] A second support plate 564, wherein the second support plate 564 is provided with a through hole penetrating the second support plate 564 along its thickness direction (vertical direction), wherein the aperture of the through hole is greater than or equal to the outer diameter of the first support column 561, and the first support column 561 is inserted into the through hole; a plurality of the through holes are provided corresponding to the first support column 561; the first buffer spring 563 abuts against one end of the second support plate 564 close to the first support plate 562;

[0155] The first guide post 565 is vertically disposed and is disposed on a side of the second support plate 564 away from the first support plate 562 .

[0156] In a specific implementation of this embodiment, the first buffer assembly 56 is partially disposed in the second shell 526; one end of the first guide column 565 away from the second support plate 564 at least partially extends out of the second shell 526;

[0157] The first pillar 561, the first support plate 562, the first buffer spring 563 and the second support plate 564 are arranged in the second shell 526; the first guide column 565 is connected to one side of the second support plate 564 and is located in the second shell 526, and one end of the first guide column 565 away from the second support plate 564 extends out of the second shell 526;

[0158] A locking device (not shown in the figure) is also provided, and the locking device limits the length of the first guide column 565 extending out of the second housing 526;

[0159] The first buffer spring 563 is in a natural state (neither stretched nor compressed) or a compressed state;

[0160] By providing a tightening device, the buffering effect of the first buffer component 56 on the process linkage can be changed.

[0161] When the first transmission rod 523 moves vertically upward, before the first transmission plate 525 contacts the first wedge-shaped transmission block 535, the first transmission plate 525 pushes the first support plate 562 to move upward, the first buffer spring 563 is compressed or further compressed, the distance that the first support column 561 extends out of the second support plate 564 becomes longer, and the distance between the second support plate 564 and the first support plate 562 becomes shorter.

[0162] In a specific implementation of this embodiment, the locking device (not shown in the figure) includes: a positioning hole provided on the first guide column 565 and penetrating along the radial direction thereof, and an insertion column inserted into the positioning hole;

[0163] After the first guide column 565 is adjusted to an appropriate length, the insertion column is inserted into the positioning hole on the inner side of the second shell 526; the two ends of the insertion column extending out of the positioning hole abut against the inner side of the top wall (upper wall) of the second shell 526 to prevent the first guide column 565 from moving in a direction away from the first transmission plate 525.

[0164] The adjustment of the first guide column 565 can change the transmission effect of the first buffer component 56 on the first transmission component 52 by changing the initial elastic state of the first buffer spring 563, so as to adjust the control sensitivity of the automatic control component.

[0165] When the left side of the stretcher is higher than the right side (the right side is lower than the left side), the first moving block 511 moves to the right and resets under the action of the rightward tilting component of its own gravity and the shaking external force, the reset force of the first reset spring 512 and the reset force of the second reset spring 533.

[0166] Please refer to the attached Figure 6 To Attachment Figure 8 In a specific implementation of the present embodiment, the second automatic control component 6 is symmetrically arranged with the first automatic control component 5 (about the central axis of the stretcher body 1 parallel to the extension direction of the frame rod 11); the first automatic control component 5 controls the intake and exhaust of the first airbag 211, and the second automatic control component 6 controls the intake and exhaust of the second airbag 212; the first automatic control component 5 controls the first air pump 42 to inject air into the first airbag 211 when the stretcher tilts to the left; the second automatic control component 6 controls the second air pump 43 to inject air into the second airbag 212 when the stretcher tilts to the right.

[0167] The second automatic control component 6 comprises:

[0168] The second shaking assembly 61 includes a second moving block 611, a third return spring 612 connected to the second moving block 611, and a fourth rack 613 connected to the end of the second moving block 611 away from the third return spring 612; the fourth rack 613 is arranged at the end of the second moving block 611 close to the first moving block 511; when the stretcher is in a flat state, the third return spring 612 is in a natural state (no compression and no stretching) or in a compressed state; when the right side of the stretcher is lower than the left side, when the second moving block 611 moves to the right side due to the rightward tilting component of its own gravity and the shaking external force, the third return spring 612 is compressed or further compressed.

[0169] In a specific implementation of this embodiment, the second shaking assembly 61 further includes a fourth housing 614, the second moving block 611 and the third return spring 612 are located in the fourth housing 614, one end of the fourth rack 613 connected to the second moving block 611 is located in the fourth housing 614, and one end of the fourth rack 613 away from the second moving block 611 at least partially extends out of the fourth housing 614;

[0170] One end of the third return spring 612 away from the second moving block 611 is connected to the inner wall of the fourth housing 614;

[0171] The fourth housing 614 is further provided with a second stop protrusion 615, and the second stop protrusion 615 limits the maximum distance between the second moving block 611 and the inner wall of the fourth housing 614 connected to the third return spring 612;

[0172] When the right side of the stretcher is lower than the left side, the second moving block 611 moves to the right, the third return spring 612 is compressed or further compressed, and the distance that the fourth rack 613 extends out of the fourth housing 614 becomes shorter.

[0173] In a specific implementation of this embodiment, the first automatic control component 5 further includes:

[0174] A fourth transmission assembly 62, the fourth transmission assembly 62 comprises a third gear 621, the third gear 621 is meshed with the fourth rack 613; a second L-shaped member is connected to the central axis of the third gear 621, the central axis of the third gear 621 is fixedly connected to the second L-shaped member; the third gear 621 is fastened to the central axis of the third gear 621 (for example, keyed);

[0175] The fourth transmission assembly 62 also includes a vertically arranged second transmission rod 623, and an arc-shaped second transmission guide member 624 is arranged at one end of the second transmission rod 623 close to the second L-shaped member; the end of the second L-shaped member away from the central axis of the third gear 621 extends into the second transmission guide member 624 (the second transmission guide member 624 is hung on the end of the second L-shaped member away from the third gear 621); a second transmission plate 625 is arranged at one end of the second transmission rod 623 away from the second transmission guide member 624; the horizontal plane where the second transmission plate 625 is located is parallel to the horizontal plane where the first transmission plate 525 is located.

[0176] In a specific implementation of this embodiment, the first automatic control component 5 further includes: a fifth housing 626, the fourth rack 613 at least partially extends into the fifth housing 626, the third gear 621, the second L-shaped member and the second transmission guide member 624 are arranged in the fifth housing 626; the second transmission plate 625 arranged on the second transmission rod 623 at least partially extends out of the fifth housing 626;

[0177] A second limiting guide protrusion 627 is further provided in the fifth housing 626 along the vertical direction (perpendicular to the axial direction of the frame rod 11 when the stretcher is in a flat state and perpendicular to the extending direction of the bed cloth 12 when the stretcher is in a flat state), and the second limiting guide protrusion 627 limits the second transmission rod 623 to move only in the vertical direction; along the direction parallel to the vertical direction, the projection of the second transmission plate 625 is larger than the projection of the fifth housing 626;

[0178] When the right side of the stretcher is lower than the left side, the second moving block 611 moves to the right, the third return spring 612 is compressed or further compressed, the distance that the fourth rack 613 extends out of the fourth shell 614 becomes shorter, the second L-shaped member drives the third gear 621 to rotate clockwise, and the second transmission rod 623 moves vertically upward.

[0179] In a specific implementation of this embodiment, the second transmission guide member 624 has the same structure as the first transmission guide member 524;

[0180] The second transmission guide rail member 624 is an arc-shaped structural member, and a second guide rail is disposed inside the second transmission guide rail member 624. The horizontal plane height of the middle position of the second guide rail is greater than the horizontal plane height of the two side (side) positions of the second guide rail.

[0181] When the stretcher is in a flat state, the second movable block 611 is at the leftmost side (of its movable travel), the fourth rack 613 extends out of the fourth shell 614 and into the fifth shell 626 at a maximum length, the end of the second L-shaped member away from the third gear 621 extends into the second transmission guide rail member 624 and the end of the second L-shaped member extending into the second transmission guide rail member 624 contacts the middle position of the first guide rail of the second transmission guide rail member 624.

[0182] In a specific implementation of this embodiment, the first automatic control component 5 further includes:

[0183] A fifth transmission assembly 63, the fifth transmission assembly 63 comprises a second guide rail member 631, a second guide rod 632 arranged in parallel with the second guide rail member 631, a fourth return spring 633 sleeved on the outer side of the second guide rod 632, a second connecting rod 634, and a second wedge-shaped transmission block 635 arranged in parallel with the second guide rail member 631; one end of the second connecting rod 634 passes through the second guide rod 632 along the radial direction of the second guide rod 632 and at least partially extends into the second guide rail of the second guide rail member 631, and the other end of the second connecting rod 634 is connected to the second wedge-shaped transmission block 635; the end surface of the second wedge-shaped transmission block 635 on the side away from the ground, the horizontal height of the side close to the second guide rail member 631 is greater than the horizontal height of the side away from the second guide rail member 631; in the vertical direction, the projection of the second wedge-shaped transmission block 635 at least partially overlaps with the projection of the second transmission plate 625;

[0184] The second guide rod 632 is provided with a second sliding groove (not marked in the figure) corresponding to the second guide rail;

[0185] The second connecting rod 634 passes through the two sliding grooves, one end of the second connecting rod 634 extends into the second guide rail of the second guide rail member 631, and the other end of the second connecting rod 634 is connected to the second wedge-shaped transmission block 635;

[0186] One end of the fourth return spring 633 is connected to one end of the second guide rod 632 away from the second wedge-shaped transmission block 635, and the other end abuts (or is connected to) the second connecting rod 634 provided at one end of the second guide rod 632 close to the second wedge-shaped transmission block 635;

[0187] When the second wedge-shaped transmission block 635 moves in the vertical direction, the second connecting rod 634 moves vertically upward in the second sliding groove and the second guide rail, and the fourth return spring 633 is compressed.

[0188] When the right side of the stretcher is lower than the left side, when the second moving block 611 moves to the right (the third return spring 612 is compressed or further compressed), the distance that the fourth rack 613 extends out of the fourth shell becomes shorter, and the fourth rack 613 drives the third gear 621 to rotate clockwise, and the second transmission rod 623 moves vertically upward, driving the second transmission plate 625 to contact the second wedge transmission block 635, and the second wedge transmission block 635 moves vertically upward.

[0189] In a specific implementation of this embodiment, the first automatic control component 5 further includes:

[0190] A sixth transmission assembly 64, the sixth transmission assembly 64 comprises a fifth rack 641, and a second matching transmission block 6412 is disposed at one end of the fifth rack 641 close to the second guide rail member 631;

[0191] The end surface of the second matching transmission block 6412 close to the ground has a height closer to the second guide rail member 631 than the end surface of the second matching transmission block 6412 far from the second guide rail member 631.

[0192] The slope of the end surface of the second matching transmission block 6412 facing the side close to the ground corresponds to the slope of the end surface of the second wedge-shaped transmission block 635 facing the side away from the ground;

[0193] When the second wedge-shaped transmission block 635 moves upward, it contacts the second matching transmission block 6412 of the fifth rack 641, so that the fifth rack 641 moves to the side (left side) away from the second guide rail member 631;

[0194] The toothed surface (toothed side) of the fifth rack 641 is arranged on the side of the fifth rack 641 facing the ground and on the end away from the second guide rail member 631;

[0195] The sixth transmission assembly 64 also includes a fourth gear 642 and a sixth rack 643, the fourth gear 642 is meshed with the fifth rack 641; the sixth rack 643 is arranged in parallel with the fifth rack 641, and the horizontal height of the sixth rack 643 is lower than the horizontal height of the fifth rack 641; along the vertical direction parallel to the projection of the fifth rack 641 at least partially overlaps with the sixth rack 643; the position of the rotating shaft of the fourth gear 642 is fixed, and the fourth gear 642 can rotate relative to its rotating shaft; the sixth rack 643 is meshed with the fourth gear 642; the fifth rack 641 is away from the sixth rack 643 (the non-toothed side of the fifth rack 641) and the fifth rack A third protrusion 6411 is provided on the side of 641 away from the second guide rail member 631; the protrusion height of the third protrusion 6411 at one end close to the second guide rail member 631 is greater than the protrusion height of the third protrusion 6411 at one end away from the second guide rail member 631; a fourth protrusion 6431 is provided on the side of the sixth rack 643 away from the fifth rack 641 (the non-toothed side of the sixth rack 643) and close to the second guide rail member 631, and the protrusion height of the fourth protrusion 6431 at one end close to the second guide rail member 631 is less than the protrusion height of the fourth protrusion 6431 at one end away from the second guide rail member 631.

[0196] When the right side of the stretcher is lower than the left side, when the second moving block 611 moves to the right, the distance that the fourth rack 613 extends out of the fourth shell 614 becomes shorter, and the fourth rack 613 drives the third gear 621 to rotate clockwise, and the second transmission rod 623 moves vertically upward, driving the second transmission plate 625 to move vertically upward to contact the second wedge-shaped transmission block 635. The second wedge-shaped transmission block 635 moves upward, and the second matching transmission block 6412 of the fifth rack 641 is squeezed by the second wedge-shaped transmission block 635 to move to the left side (away from the second guide rail member 631), driving the fourth gear 642 to rotate counterclockwise, and then driving the sixth rack 643 to move to the right (close to the second guide rail member 631).

[0197] Please refer to the attached Figure 6 , Attachment Figure 8 , Attachment Fig.13 , Attachment Fig.14 and attached Fig.15 In a specific implementation of this embodiment, the first automatic control component 5 also includes:

[0198] The second regulating component 65 includes a second air inlet switch 651 and a second air outlet switch 652; when the second air inlet switch 651 is turned on, the air pump 4 injects gas into the airbag 21 (the second airbag 212) through the air inlet pipe 213; when the second air outlet switch 652 is turned on, the regulating valve 441 on the transition pipe 44 is opened, and the air outlet pipe 214 is connected to the outside atmosphere; when the fifth rack 641 moves in a direction away from the second guide rail member 631 (to the left), the second air inlet switch 651 is turned on; when the sixth rack 643 moves in a direction close to the second guide rail member 631 (to the right), the second air outlet switch 652 is turned on.

[0199] In a specific implementation of this embodiment, the second air inlet switch 651 and the second air outlet switch 652 are control knobs.

[0200] Alternatively, the second air inlet switch 651 and the second air outlet switch 652 are push switches.

[0201] When the right side of the stretcher is lower than the left side, when the second moving block 611 moves to the right, the distance that the fourth rack 613 extends out of the fourth housing 614 becomes shorter, and the fourth rack 613 drives the third gear 621 to rotate clockwise, and the second transmission rod 623 moves vertically upward, driving the second transmission plate 625 to contact the second wedge-shaped transmission block 635, and the second wedge-shaped transmission block 635 moves upward, and the fifth rack 641 is squeezed by the second wedge-shaped transmission block 635 and moves to the left, driving the fourth gear 642 to rotate counterclockwise, thereby driving the sixth rack 643 to move rightward;

[0202] The third protrusion 6411 contacts the second air inlet switch 651, and the second air inlet switch 651 is rotated or further rotated ( / pressed or further pressed), and as the degree of rotation ( / pressing degree) increases, the working voltage ( / current) of the air pump 4 (the second air pump 43) increases, and the unit gas injection amount into the airbag 21 (the second airbag 212) increases;

[0203] When the fourth protrusion 6431 contacts the second air outlet switch 652, the second air outlet switch 652 is rotated or further rotated ( / pressed or further pressed), and as the degree of rotation ( / degree of pressing) increases, the opening of the regulating valve 441 on the transition pipe 44 increases.

[0204] In a specific implementation of the present embodiment, when the fifth rack 641 moves in a direction away from the second guide rail member 631 (to the left), the third protrusion 6411 abuts against the second air inlet switch 651, causing the second air inlet switch 651 to be turned on, earlier than when the sixth rack 643 moves in a direction close to the second guide rail member 631 (to the right), the fourth protrusion 6431 abuts against the second air outlet switch 652, causing the second air outlet switch 652 to be turned on.

[0205] In a specific implementation of this embodiment, the sixth transmission assembly 64 further includes a sixth housing 644. The fourth gear 642 and the sixth rack 643 are disposed in the sixth housing 644, and the fifth rack 641 at least partially extends out of the sixth housing 644; along the projection parallel to the vertical direction, the fifth rack 641 at least partially overlaps with the projection of the second wedge-shaped transmission block 635;

[0206] A second limiting guide block 6441 is further disposed in the sixth housing 644 , and the second limiting guide block 6441 limits the fifth rack 641 and the sixth rack 643 to move only in the horizontal direction.

[0207] Please refer to the attached Fig.15 In a specific implementation of this embodiment, a second connecting spring 6442 is provided at one end of the sixth rack 643 away from the second guide rail member 631;

[0208] The other end of the second connecting spring 6442 is connected to the inner wall of the sixth housing 644 .

[0209] Please refer to the attached Figure 8 In a specific implementation of this embodiment, the second automatic control component 6 further includes a second buffer assembly 66, and the second buffer assembly 66 is arranged on a side of the second transmission plate 625 away from the ground;

[0210] The second buffer component 66 includes:

[0211] A second support column 661, wherein the second support column 661 is vertically arranged, and a plurality of the second support columns 661 are arranged;

[0212] A third support plate 662, wherein the third support plate 662 is fixed to one end of the second support column 661 close to the first transmission plate 525;

[0213] A second buffer spring 663, wherein the second buffer spring 663 is sleeved on the second pillar 661, and a plurality of the second buffer springs 663 are provided corresponding to the second pillar 661;

[0214] The fourth support plate 664 is provided with a through hole penetrating the fourth support plate 664 along its thickness direction (vertical direction), the aperture of the through hole is greater than or equal to the outer diameter of the fourth support plate 664, and the second pillar 661 is inserted into the through hole; a plurality of the through holes are provided corresponding to the second pillar 661; the second buffer spring 663 abuts against one end of the fourth support plate 664 close to the third support plate 662;

[0215] The second guide post 665 is vertically arranged. The second guide post 665 is arranged on a side of the fourth support plate 664 away from the third support plate 662 .

[0216] In a specific implementation of this embodiment, the second buffer assembly 66 is partially disposed in the fifth housing 626; an end of the second guide column 665 away from the fourth support plate 664 at least partially extends out of the fifth housing 626;

[0217] The second pillar 661, the third support plate 662, the second buffer spring 663 and the fourth support plate 664 are arranged in the fifth housing 626; the second guide column 665 is connected to one side of the fourth support plate 664 and is located in the fifth housing 626, and one end of the second guide column 665 away from the fourth support plate 664 extends out of the fifth housing 626;

[0218] A locking device (not shown in the figure) is also provided, and the locking device limits the length of the second guide column 665 extending out of the fifth housing 626;

[0219] The second buffer spring 663 is in a natural state (neither stretched nor compressed) or a compressed state;

[0220] By providing a tightening device, the buffering effect of the second buffer component 66 on the process linkage can be changed.

[0221] When the second transmission rod 623 moves vertically upward, before the second transmission plate 625 contacts the first wedge-shaped transmission block 535, the second transmission plate 625 pushes the third support plate 662 to move upward, the second buffer spring 663 is compressed or further compressed, the distance that the second support column 661 extends from the fourth support plate 664 becomes longer, and the distance between the fourth support plate 664 and the third support plate 662 becomes shorter.

[0222] In a specific implementation of this embodiment, the locking device (not shown in the figure) includes: a positioning hole provided on the second guide column 665 and penetrating along the radial direction thereof, and an insertion column inserted into the positioning hole;

[0223] After the second guide column 665 is adjusted to a suitable length, the insertion column is inserted into the positioning hole on the inner side of the fifth shell 626; the two ends of the insertion column extending out of the positioning hole abut against the inner side of the top wall (upper wall) of the fifth shell 626 to prevent the second guide column 665 from moving in a direction away from the second transmission plate 625.

[0224] The adjustment of the second guide column 665 can change the transmission effect of the second buffer component 66 on the fourth transmission component 62 by changing the initial elastic state of the second buffer spring 663, so as to adjust the control sensitivity of the automatic control component.

[0225] When the rescuer lifts the injured person for transfer, by means of gas injection compensation, when the left side of the stretcher moves downward (the left side is lower than the right side), the first automatic control component 5 controls the first air pump 42 to inject gas into the first air bag 211, so that the injured person is in a horizontal state (as much as possible) or reduces the tendency of the injured person to roll to the left; when the right side of the stretcher moves downward (the right side is lower than the left side), the second automatic control component 6 controls the second air pump 43 to inject gas into the second air bag 212, so that the injured person is in a horizontal state (as much as possible) or reduces the tendency of the injured person to roll to the right;

[0226] When the stretcher originally moving downward on the left side is in the process of being laid flat, the first air pump 42 (and / or the regulating valve 441 of the transition pipe) that was originally turned on by the first automatic control component 5 is gradually closed;

[0227] When the stretcher originally moving downward on the right side changes to the square state, the second air pump 43 (and / or the regulating valve 441 of the transition pipe) that was originally turned on by the second automatic control component 6 is gradually closed;

[0228] If the left side of the stretcher moves downward too quickly in a short period of time, causing the first air pump 42 to inject gas into the first airbag 211 too quickly, in order to improve safety, the first automatic control component 5 also controls the first airbag 211 to discharge gas to the outside (at this time, the first airbag 211 is in a state of being inflated and deflated); if the right side of the stretcher moves downward too quickly in a short period of time, causing the second air pump 43 to inject gas into the second airbag 212 too quickly, in order to improve safety, the second automatic control component 5 also controls the second airbag 212 to discharge gas to the outside (at this time, the second airbag 212 is in a state of being inflated and deflated).

[0229] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A stretcher equipped with a thoracolumbar support for trauma treatment, characterized in that: The stretcher comprises: A stretcher body (1), the stretcher body (1) comprising two parallel racks (11) and a bed sheet (12) connected between the two racks (11); along an axial direction parallel to the racks (11), the extension length of the bed sheet (12) is less than the extension length of the racks (11); A thoracolumbar brace (2), wherein the thoracolumbar brace (2) is detachably connected to the stretcher body (1); A buckle belt (3), wherein the buckle belt (3) is arranged on the frame rod (11) and / or the thoracolumbar support (2).

2. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 1, characterized in that: The rack rod (11) comprises a first rod (111) and a second rod (112) which are rotatably connected; The thoracolumbar support (2) is arranged on the bed cloth (12) between the first rods (111) of the two parallel arranged frame rods (11).

3. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 1, characterized in that: An airbag (21) arranged parallel to the axial direction of the frame rod (11) is arranged on the body-contacting side of the thoracolumbar support (2) close to the bed sheet (12); the airbag (21) comprises a first airbag (211) and a second airbag (212) arranged parallel to each other, and the first airbag (211) and the second airbag (212) support the spine of the injured person on the side of the bed sheet (12) away from the ground; The airbag (21) is provided with: An air intake pipeline (213), wherein an air intake check valve is provided on the air intake pipeline (213); An air outlet pipeline (214), wherein an air outlet one-way valve is arranged on the air outlet pipeline (214).

4. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 3, characterized in that: The airbag (21) is also provided with: A first exhaust pipeline (215), wherein a first airbag pressure safety valve (2151) is provided on the first exhaust pipeline (215); A second exhaust pipeline (216), wherein the diameter of the second exhaust pipeline (216) is greater than the diameter of the first exhaust pipeline (215); a second airbag pressure safety valve (2161) is provided on the second exhaust pipeline (216); and the opening pressure of the second airbag pressure safety valve (2161) is greater than the opening pressure of the first airbag pressure safety valve (2151).

5. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 3 or 4, characterized in that: The stretcher also includes: An air pump (4), wherein an air injection end of the air pump (4) is connected to an air intake pipeline (213) provided on the air bag (21) via a provided connecting pipe (41); An automatic control component is arranged at one end of the frame rod (11) away from the bed cloth (12) and one end of the bed cloth (12) is provided with the thoracolumbar support (2); the automatic control component controls the air pump (4) to inject air into the air bag (21) according to the left and right shaking of the stretcher.

6. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 5, characterized in that: The air pump (4) comprises a first air pump (42) and a second air pump (43); the first air pump (42) is connected to the first air bag (211); and the second air pump (43) is connected to the second air bag (212).

7. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 5, characterized in that: The automatic control component comprises a first automatic control component (5) for controlling the air inlet and outlet of the first air bag (211) and a second automatic control component (6) for controlling the air inlet and outlet of the second air bag (212). The first automatic control component (5) comprises: A first shaking assembly (51), the first shaking assembly (51) comprising a first moving block (511), a first return spring (512) connected to the first moving block (511), and a first rack (513) connected to an end of the first moving block (511) away from the first return spring (512); A first transmission assembly (52), the first transmission assembly (52) comprising a first gear (521), the first gear (521) meshing with the first rack (513); a first L-shaped component (522) connected to the central axis of the first gear (521), the first gear (521) being tightly connected to its central axis, and the first L-shaped component (522) being fixedly connected; the first transmission assembly (52) further comprising a first vertically arranged transmission rod (523), an end of the first transmission rod (523) close to the first L-shaped component (522) being provided with an arc-shaped first transmission guide member (524), an end of the first L-shaped component (522) away from the central axis of the first gear (521) extending into the first transmission guide member (524); a first transmission plate (525) being provided at an end of the first transmission rod (523) away from the first transmission guide member (524); A second transmission assembly (53), the second transmission assembly (53) comprising a first vertically arranged guide rail member (531), a first guide rod (532) arranged parallel to the first guide rail member (531), a second return spring (533) sleeved on the outside of the first guide rod (532), a first connecting rod (534), and a first wedge-shaped transmission block (535) arranged parallel to the first guide rail member (531), one end of the first connecting rod (534) passing through the first guide rod (532) along the radial direction of the first guide rod (532). 532) and at least partially extends into the first guide rail member (531), and the other end of the first connecting rod (534) is connected to the first wedge-shaped transmission block (535); the horizontal height of the end surface of the first wedge-shaped transmission block (535) away from the ground and close to the first guide rail member (531) is greater than the horizontal height of the side away from the first guide rail member (531); in the vertical direction, the projection of the first wedge-shaped transmission block (535) and the projection of the first transmission plate (525) at least partially overlap; A third transmission assembly (54), the third transmission assembly (54) comprising a second rack (541); a first mating transmission block (5412) is provided at one end of the second rack (541) close to the first guide rail member (531); the end surface of the first mating transmission block (5412) close to the ground, the horizontal height of the side close to the first guide rail member 531 is greater than the horizontal height of the side away from the first guide rail member (531); the first mating transmission block (5412) is directed toward the side close to the first guide rail member (531). The inclination of the end face on the side close to the ground corresponds to the inclination of the end face of the first wedge-shaped transmission block (535) on the side facing away from the ground; the third transmission assembly (54) further comprises a second gear (542) and a third rack (543), the second gear (542) meshing with the second rack (541); the third rack (543) is arranged in parallel with the second rack (541), and the level of the third rack (543) is lower than the level of the second rack (541); along the vertical direction parallel to the vertical direction The projection of the second rack (541) at least partially overlaps with the third rack (543); the third rack (543) is meshed with the second gear (542); a first protrusion (5411) is provided on the side of the second rack (541) away from the third rack (543) and away from the first guide rail member (531); the protrusion height of the first protrusion (5411) at one end close to the first guide rail member (531) is greater than the height of the first protrusion (5411). 411) is a protrusion height of an end away from the first guide rail member (531); a second protrusion (5431) is provided on one end of the third rack (543) away from the second rack (541) and on one side of the third rack (543) close to the first guide rail member (531); a protrusion height of an end of the second protrusion (5431) close to the first guide rail member (531) is less than a protrusion height of an end of the second protrusion (5431) away from the first guide rail member (531); A first regulating component (55), the first regulating component (55) comprising a first air inlet switch (551) and a first air outlet switch (552); when the first air inlet switch (551) is turned on, the air pump (4) injects gas into the airbag (21) through the air inlet pipeline (213); when the first air outlet switch (552) is turned on, the air outlet pipeline (214) is connected to the outside atmosphere; when the second rack (541) moves in a direction away from the first guide rail member (531), the first air inlet switch (551) is turned on; when the third rack (543) moves in a direction close to the first guide rail member (531), the first air outlet switch (552) is turned on.

8. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 7, characterized in that: The first automatic control component (5) further comprises a first buffer assembly (56), wherein the first buffer assembly (56) is arranged on a side of the first transmission plate (525) away from the ground; The first buffer component (56) comprises: A first pillar (561), wherein the first pillar (561) is vertically arranged, and a plurality of the first pillars (561) are arranged; A first support plate (562), the first support plate (562) being fixedly mounted on one end of the first support column (561) close to the first transmission plate (525); A first buffer spring (563), wherein the first buffer spring (563) is sleeved on the first pillar (561), and a plurality of the first buffer springs (563) are provided corresponding to the first pillar (561); a second support plate (564), wherein the second support plate (564) is provided with a through hole penetrating the second support plate (564) along the thickness direction thereof, wherein the diameter of the through hole is greater than or equal to the outer diameter of the first support plate (561), and the first support plate (561) is inserted into the through hole; a plurality of the through holes are provided corresponding to the first support plate (561); the first buffer spring (563) abuts against one end of the second support plate (564) close to the first support plate (562); A first guide post (565), wherein the first guide post (565) is arranged on a side of the second support plate (564) away from the first support plate (562).

9. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 7, characterized in that: The second automatic control component (6) is arranged symmetrically with the first automatic control component (5); The second automatic control component (6) comprises: A second shaking assembly (61), the second shaking assembly (61) comprising a second moving block (611), a third return spring (612) connected to the second moving block (611), and a fourth rack (613) connected to an end of the second moving block (611) away from the third return spring (612); the fourth rack (613) is arranged at an end of the second moving block (611) close to the first moving block (511); A fourth transmission assembly (62), the fourth transmission assembly (62) comprising a third gear (621), the third gear (621) meshing with the fourth rack (613); a second L-shaped member is connected to the central axis of the third gear (621), the third gear (621) is tightly connected to the central axis thereof, and the second L-shaped member is fixedly connected; the fourth transmission assembly (62) further comprises a second transmission rod (623), an end of the second transmission rod (623) close to the second L-shaped member is provided with an arc-shaped second transmission guide member (624); an end of the second L-shaped member away from the central axis of the third gear (621) extends into the second transmission guide member (624); a second transmission plate (625) is provided at an end of the second transmission rod (623) away from the second transmission guide member (624); a horizontal plane where the second transmission plate (625) is located is parallel to a horizontal plane where the first transmission plate (525) is located; A fifth transmission assembly (63), the fifth transmission assembly (63) comprising a second guide rail member (631), a second guide rod (632) arranged parallel to the second guide rail member (631), a fourth return spring (633) sleeved on the outside of the second guide rod (632), a second connecting rod (634), and a second wedge-shaped transmission block (635) arranged parallel to the second guide rail member (631); one end of the second connecting rod (634) passes through the second guide rod (632) along the radial direction of the second guide rod (632) 632) at least partially extends into the second guide rail member (631), and the other end of the second connecting rod (634) is connected to the second wedge-shaped transmission block (635); the horizontal height of the end surface of the second wedge-shaped transmission block (635) away from the ground and the side close to the second guide rail member (631) is greater than the horizontal height of the side away from the second guide rail member (631); in the vertical direction, the projection of the second wedge-shaped transmission block (635) and the projection of the second transmission plate (625) at least partially overlap; A sixth transmission assembly (64), the sixth transmission assembly (64) comprising a fifth rack (641), the end of the fifth rack (641) close to the second guide rail member (631) being provided with a second mating transmission block (6412); the end surface of the second mating transmission block (6412) close to the ground, the horizontal height of the side close to the second guide rail member (631) being greater than the horizontal height of the side away from the second guide rail member (631); the second mating transmission block (6412) is directed toward The inclination of the end face on the side close to the ground corresponds to the inclination of the end face of the second wedge-shaped transmission block (635) on the side away from the ground; the sixth transmission assembly (64) further includes a fourth gear (642) and a sixth rack (643), the fourth gear (642) meshing with the fifth rack (641); the sixth rack (643) is arranged in parallel with the fifth rack (641), and the level of the sixth rack (643) is lower than the level of the fifth rack (641); along the parallel In the vertical direction, the projection of the fifth rack (641) at least partially overlaps with the sixth rack (643); the sixth rack (643) is meshed with the fourth gear (642); a third protrusion (6411) is provided on the side of the fifth rack (641) away from the sixth rack (643) and away from the second guide rail member (631); the protrusion height of the third protrusion (6411) at one end close to the second guide rail member (631) is greater than that of the third protrusion (6411). The protrusion height of the protrusion (6411) at one end away from the second guide rail member (631); the fourth protrusion (6431) is provided on the side of the sixth rack (643) away from the fifth rack (641) and close to the second guide rail member (631), and the protrusion height of the end of the fourth protrusion (6431) close to the second guide rail member (631) is smaller than the protrusion height of the end of the fourth protrusion (6431) away from the second guide rail member (631); A second regulating component (65), the second regulating component (65) comprises a second air inlet switch (651) and a second air outlet switch (652); when the second air inlet switch (651) is turned on, the air pump (4) injects gas into the airbag (21) through the air inlet pipeline (213); when the second air outlet switch (652) is turned on, the air outlet pipeline (214) is connected to the outside atmosphere; when the fifth rack (641) moves in a direction away from the second guide rail member (631), the second air inlet switch (651) is turned on; when the sixth rack (643) moves in a direction close to the second guide rail member (631), the second air outlet switch (652) is turned on.

10. A stretcher equipped with a thoracolumbar support for trauma treatment according to claim 9, characterized in that: The second automatic control component (6) further comprises a second buffer assembly (66), wherein the second buffer assembly (66) is arranged on a side of the second transmission plate (625) away from the ground; The second buffer component (66) comprises: A second pillar (661), wherein the second pillar (661) is vertically arranged, and a plurality of the second pillars (661) are arranged; A third support plate (662), the third support plate (662) being fixedly mounted on one end of the second support column (661) close to the first transmission plate (525); A second buffer spring (663), wherein the second buffer spring (663) is sleeved on the second pillar (661), and a plurality of the second buffer springs (663) are provided corresponding to the second pillar (661); a fourth support plate (664), the fourth support plate (664) being provided with a through hole penetrating the fourth support plate (664) along the thickness direction thereof, the aperture of the through hole being greater than or equal to the outer diameter of the fourth support plate (664), the second pillar (661) being inserted into the through hole; a plurality of the through holes are provided corresponding to the second pillar (661); the second buffer spring (663) abuts against one end of the fourth support plate (664) close to the third support plate (662); A second guide post (665), wherein the second guide post (665) is arranged on a side of the fourth support plate (664) away from the third support plate (662).

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