Design structure of post-disaster rescue stretcher

Abstract

The invention discloses a design structure of a post-disaster rescue stretcher. The structure aims at solving the problems that an existing first-aid stretcher cannot adapt to various wounded body positions, and secondary injuries caused by vibration of the wounded in the transportation process cannot be relieved. The structure comprises a first stretcher rod, the left side and the right side of the first stretcher rod are rotationally connected with second stretcher rods through angle adjusting assemblies, the upper surfaces of the first stretcher rod and the second stretcher rods are fixedly connected with hard bearing faces, and the lower surfaces of the first stretcher rod and the second stretcher rods are fixedly connected with soft bearing faces. The first stretcher rod and the second stretcher rod can be freely deformed through the angle adjusting assembly so as to adapt to the sick and wounded with different body positions, the comfort of the sick and wounded can be improved, meanwhile, the cutting seam is formed in the soft bearing face, the elasticity of the bearing fabric is controlled, vibration in the carrying process can be relieved, and the influence of vibration and inclination on the sick and wounded can be reduced; and secondary damage caused in the transportation process is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of rescue stretchers, and in particular relates to a design structure of a post-disaster rescue stretcher. Background Art

[0002] In the face of various emergency situations, the emergency stretcher is an indispensable rescue tool. Whether it is a natural disaster or an accident, the emergency stretcher can provide a safe and stable way of transportation and provide timely medical assistance to the injured. Regardless of whether it is a natural disaster or a man-made disaster, post-disaster rescue will face complex environments and needs. Unscientific transportation positions will directly lead to the deterioration of the condition of the injured, which puts higher requirements on the design of rescue stretchers.

[0003] Existing emergency stretchers can be divided into three categories according to their structures, functions and material characteristics: simple stretchers, general stretchers and special-purpose stretchers. The body position of the patient cannot be adjusted when these stretchers are used. In particular, in disasters such as earthquakes, major traffic accidents, and building collapses, most of the patients are traumatic patients, resulting in a large number of post-disaster patient types. The stretcher cannot meet the changing needs of the body positions of various patients, and when walking on mountain roads or stairs, the stretcher is tilted, causing one end to be high and the other end to be low, which will cause pain to the injured, and the vibration during transportation is also likely to cause secondary injuries. Summary of the invention

[0004] (1) Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a post-disaster rescue stretcher design structure, which aims to solve the problem that the existing emergency stretcher cannot adapt to a variety of body positions of the wounded and reduce the secondary injuries caused by vibration during transportation of the wounded.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the present invention provides a post-disaster rescue stretcher design structure, which includes a first stretcher rod, wherein the left and right sides of the first stretcher rod are rotatably connected to the second stretcher rod through an angle adjustment assembly, the upper surfaces of the first stretcher rod and the second stretcher rod are fixedly connected to a hard load-bearing surface, the lower surfaces of the first stretcher rod and the second stretcher rod are fixedly connected to a soft load-bearing surface, the front and rear sides of the first stretcher rod are rotatably connected to a movable rod through a first pin shaft, both ends of the movable rod are rotatably connected to a connecting rod through a second pin shaft, and the other end of the connecting rod is rotatably connected to the second stretcher rod through a third pin shaft.

[0008] Preferably, the first stretcher bar and the second stretcher bar are both provided with through holes in the middle and are surrounded by fixing rods, the hard bearing surface is a carbon fiber plate, and the soft bearing surface is a deformable cloth.

[0009] Furthermore, the deformable fabric includes a fabric body and a plurality of load-bearing fabrics fixedly connected to the outside of the fabric body, the load-bearing fabrics pass through the through hole and are sleeved and fixed on the outer surface of the fixing rod, and the fabric body and the load-bearing fabrics are both provided with a plurality of slits through a paper-cut structure.

[0010] Furthermore, the angle adjustment assembly includes a first fixed seat fixedly connected to the first stretcher rod and a second fixed seat fixedly connected to the second stretcher rod, the other end of the first fixed seat is fixedly connected to a rotating shaft, the other end of the second fixed seat is provided with a cavity, the upper surface of the second fixed seat is provided with a T-shaped slot connected to the cavity, the rotating shaft is rotatably connected to the interior of the cavity, the other end of the T-shaped slot is slidably connected to a rebound gear, a spring is installed between the rebound gear and the inner wall of the cavity, the upper surface of the rebound gear is fixedly connected to a lever located inside the T-shaped slot, one side of the rotating shaft is fixedly connected to a latch tooth, and a plurality of latch grooves corresponding to the latch teeth are provided on the circumference of one side of the rebound gear close to the rotating shaft.

[0011] Furthermore, the first pin is located in the middle of the movable rod, and the distance between the second pin and the third pin is equal to the distance between the rotation axis and the third pin.

[0012] Furthermore, both front and rear sides of the second stretcher rod away from one end of the first stretcher rod are fixedly connected with fixed shafts, the outer surface of the fixed shaft is rotatably connected with a roller, and the end of the second stretcher rod away from the first stretcher rod is provided with a handle groove.

[0013] Furthermore, fixing belts are installed on both upper and lower sides of the second stretcher pole, and the fixing belts are used to fix the injured person.

[0014] Beneficial Effects

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention has a hard bearing surface on the upper side of the stretcher, which can be used for seriously injured patients and patients with fractures who need to take a supine position; and a soft bearing surface on the lower side, which can provide a semi-recumbent position and a sitting position. At the same time, the first stretcher rod and the second stretcher rod can be arbitrarily deformed through an angle adjustment component, so as to adapt to patients in different body positions, avoid tilting the stretcher to cause one end to be higher and the other end to be lower, and improve the comfort of the injured.

[0017] The present invention provides slits on the soft bearing surface. The slits enable the fabric, which is not elastic in itself, to have a certain degree of deformability, so that it will be appropriately concave when pressed down by the weight of a human body. The deformation degree is controlled by controlling the length and interval of the slits, thereby controlling the elasticity of the bearing fabric. This can reduce vibrations during transportation, reduce the effects of vibrations and tilts on the injured, and avoid secondary injuries during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure when viewed from above of the present invention.

[0020] Figure 3 The present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Figure 4 It is a structural schematic diagram of the angle adjustment component of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the second stretcher bar of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the soft bearing surface of the present invention.

[0024] Figure 7 It is a schematic diagram of the paper-cut structure of the soft bearing surface of the present invention.

[0025] The marks in the accompanying drawings are: 1, first stretcher rod; 2, angle adjustment assembly; 3, second stretcher rod; 4, hard bearing surface; 5, soft bearing surface; 6, first pin shaft; 7, movable rod; 8, second pin shaft; 9, connecting rod; 10, third pin shaft; 11, through hole; 12, fixed rod; 13, fixed shaft; 14, roller; 15, handle groove; 16, fixing belt; 201, first fixing seat; 202, second fixing seat; 203, rotating shaft; 204, cavity; 205, T-slot; 206, rebound gear; 207, spring; 208, lever; 209, clamping tooth; 210, clamping groove; 501, fabric body; 502, bearing fabric; 503, slit. DETAILED DESCRIPTION

[0026] This specific implementation method is a post-disaster rescue stretcher design structure, and its structural schematic diagram is as follows Figure 1-Figure 7 As shown, the structure includes a first stretcher rod 1, the left and right sides of the first stretcher rod 1 are rotatably connected to the second stretcher rod 3 through an angle adjustment assembly 2, the upper surfaces of the first stretcher rod 1 and the second stretcher rod 3 are fixedly connected to a hard bearing surface 4, the lower surfaces of the first stretcher rod 1 and the second stretcher rod 3 are fixedly connected to a soft bearing surface 5, the front and rear sides of the first stretcher rod 1 are rotatably connected to a movable rod 7 through a first pin shaft 6, both ends of the movable rod 7 are rotatably connected to a connecting rod 9 through a second pin shaft 8, and the other end of the connecting rod 9 is rotatably connected to the second stretcher rod 3 through a third pin shaft 10.

[0027] like Figure 1 , Figure 2and Figure 5 As shown: In this embodiment, a through hole 11 is opened in the middle of the first stretcher bar 1 and the second stretcher bar 3 and fixed rods 12 are formed around them. The hard bearing surface 4 is a carbon fiber plate, and the soft bearing surface 5 is a deformable cloth.

[0028] Specifically, the first stretcher rod 1 and the second stretcher rod 3 are as follows: the top layer is a hard bearing surface 4, the middle layer is a stretcher main structure, including a through hole 11 and fixed rods 12 around it, and the bottom layer is a soft bearing surface 5. A paper-cut structure is arranged on the soft bearing surface 5. Here, the hard bearing surface 4 adopts a carbon fiber plate, which has a certain bearing capacity, good toughness and rigidity. The hard bearing surface 4 can be used for seriously injured patients and fracture patients who need to take a supine position.

[0029] like Figure 5 , Figure 6 and Figure 7 As shown: In this embodiment, the deformable fabric includes a fabric body 501 and a plurality of supporting fabrics 502 fixedly connected to the outside of the fabric body 501. The supporting fabrics 502 pass through the through hole 11 and are sleeved and fixed on the outer surface of the fixing rod 12. The fabric body 501 and the supporting fabrics 502 are both provided with a plurality of slits 503 through a paper-cut structure. Figure 7 As shown, the paper cutting structure can be specifically configured as scissors, a laser cutting machine, or other equipment or machines capable of cutting multiple rows of slits 503 on the fabric body 501 and the carrier fabric 502. In this embodiment, a laser cutting machine is specifically used to cut multiple rows of slits 503 on the fabric body 501 and the carrier fabric 502, each row of slits includes multiple shear cuts, and the multiple shear cuts of two adjacent rows are arranged alternately.

[0030] The fabric body 501 and the load-bearing fabric 502 are made of chemical fiber fabrics with high tensile strength, light weight and hydrophobicity. The slits 503 are formed by the paper-cut structure on the load-bearing fabric 502, which can give the fabric a controllable deformation. When pressed down by the weight of the human body, it will be appropriately concave, and the degree of concavity must be limited. The deformation degree can be controlled by controlling the length and interval of the slits 503, thereby controlling the elasticity of the load-bearing fabric, so that the soft load-bearing surface 5 can be combined with the deformation of the stretcher main structure to provide a semi-recumbent position, a sitting position, etc.

[0031] like Figure 1 , Figure 3 and Figure 4As shown: in this embodiment, the angle adjustment assembly 2 includes a first fixed seat 201 fixedly connected to the first stretcher rod 1 and a second fixed seat 202 fixedly connected to the second stretcher rod 3, the other end of the first fixed seat 201 is fixedly connected to a rotating shaft 203, the other end of the second fixed seat 202 is provided with a cavity 204, the upper surface of the second fixed seat 202 is provided with a T-shaped slot 205 connected to the cavity 204, the rotating shaft 203 is rotatably connected to the inside of the cavity 204, the other end of the T-shaped slot 205 is slidably connected to a rebound gear 206, a spring 207 is installed between the rebound gear 206 and the inner wall of the cavity 204, the upper surface of the rebound gear 206 is fixedly connected to a lever 208 located inside the T-shaped slot 205, one side of the rotating shaft 203 is fixedly connected to a latch tooth 209, and a plurality of latch grooves 210 corresponding to the latch teeth 209 are provided on the circumference of one side of the rebound gear 206 close to the rotating shaft 203.

[0032] In this way, when we manually move the lever 208, the lever 208 drives the rebound gear 206 to move and compress the spring 207, and the latch tooth 209 disengages from the slot 210. Repeat the above steps to adjust the angle between the first stretcher bar 1 and the second stretcher bar 3 to reach the angle of the semi-recumbent position. At this time, the first stretcher bar 1 drives the rotating shaft 203 and the latch tooth 209 to rotate. Then, when the lever 208 is released, the restoring force of the spring 207 can drive the rebound gear 206 to move until the latch tooth 209 engages in the slot 210. Since the tooth surface of the latch tooth 209 is relatively vertical, it will not retreat and will produce self-locking. When a flat stretcher angle is required, we only need to repeat the above steps to easily restore the original position, thereby adapting to the wounded and sick in different body positions.

[0033] like Figure 1 and Figure 2 As shown: In this embodiment, the first pin shaft 6 is located in the middle of the movable rod 7, and the distance between the second pin shaft 8 and the third pin shaft 10 is equal to the distance between the rotating axis 203 and the third pin shaft 10.

[0034] like Figure 1 As shown: In this embodiment, the front and rear sides of the second stretcher rod 3 away from the end of the first stretcher rod 1 are fixedly connected with a fixed shaft 13, the outer surface of the fixed shaft 13 is rotatably connected with a roller 14, and the end of the second stretcher rod 3 away from the first stretcher rod 1 is provided with a handle groove 15. The roller 14 can facilitate single-person operation of rescue personnel on smooth roads, and the handle groove 15 is convenient for rescue personnel to grasp the stretcher.

[0035] like Figure 2 As shown: In this embodiment, fixing belts 16 are installed on both the upper and lower sides of the second stretcher rod 3, and the fixing belts 16 are used to fix the wounded to prevent the wounded from falling off the stretcher.

[0036] Working principle: the upper side of the stretcher is a hard bearing surface 4, which can be used for seriously injured patients and patients with fractures who need to take a supine position. The lower side is a soft bearing surface 5, which can provide a semi-recumbent position and a sitting position. For example, when we use our hands to push the lever 208, the lever 208 drives the rebound gear 206 to move and compress the spring 207, and at the same time the latch 209 disengages from the slot 210. Repeat the above steps to adjust the angle between the first stretcher bar 1 and the second stretcher bar 3 to reach the angle of the semi-recumbent position. At this time, the first stretcher bar 1 drives the rotating shaft 203 and the latch 209 to rotate. Then when the lever 208 is released, the restoring force of the spring 207 can drive the rebound gear 206 to move until the latch 209 engages in the slot 210. The tooth surface of 209 is relatively vertical, will not retreat, and will produce self-locking. When a flat stretcher angle is required, we only need to repeat the above steps to easily restore the original position, so as to adapt to the wounded in different positions, avoid the stretcher from tilting and causing one end to be high and the other end to be low, and improve the comfort of the wounded. At the same time, by arranging a slit 503 on the soft bearing surface 5, the setting of the slit 503 makes the fabric that is not elastic itself have a certain degree of deformation, and it will be appropriately concave when pressed by the weight of the human body, and the deformation degree is controlled by controlling the length and interval of the slit 503, thereby controlling the elasticity of the bearing fabric, which can reduce the vibration during transportation, reduce the impact of vibration and tilt on the wounded, and avoid secondary injuries during transportation.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A post-disaster rescue stretcher design structure, the structure comprising a first stretcher bar (1), characterized in that: The left and right sides of the first stretcher bar (1) are rotatably connected to the second stretcher bar (3) via an angle adjustment assembly (2); the upper surfaces of the first stretcher bar (1) and the second stretcher bar (3) are fixedly connected to a hard bearing surface (4); the lower surfaces of the first stretcher bar (1) and the second stretcher bar (3) are fixedly connected to a soft bearing surface (5); the front and rear sides of the first stretcher bar (1) are rotatably connected to a movable rod (7) via a first pin shaft (6); both ends of the movable rod (7) are rotatably connected to a connecting rod (9) via a second pin shaft (8); the other end of the connecting rod (9) is rotatably connected to the second stretcher bar (3) via a third pin shaft (10).

2. The design structure of the post-disaster rescue stretcher according to claim 1 is characterized in that: The first stretcher bar (1) and the second stretcher bar (3) are both provided with a through hole (11) in the middle and are surrounded by fixing rods (12); the hard bearing surface (4) is a carbon fiber plate, and the soft bearing surface (5) is a deformable cloth.

3. The design structure of the post-disaster rescue stretcher according to claim 2 is characterized in that: The deformable fabric comprises a fabric body (501) and a plurality of supporting fabrics (502) fixedly connected to the outside of the fabric body (501); the supporting fabrics (502) penetrate through the through hole (11) and are sleeved and fixed on the outer surface of the fixing rod (12); and a plurality of slits (503) are provided on both the fabric body (501) and the supporting fabrics (502) through a paper-cut structure.

4. The design structure of the post-disaster rescue stretcher according to claim 3 is characterized in that: The angle adjustment assembly (2) comprises a first fixing seat (201) fixedly connected to the first stretcher bar (1) and a second fixing seat (202) fixedly connected to the second stretcher bar (3); the other end of the first fixing seat (201) is fixedly connected to a rotating shaft (203); the other end of the second fixing seat (202) is provided with a cavity (204); the upper surface of the second fixing seat (202) is provided with a T-shaped groove (205) connected to the cavity (204); the rotating shaft (203) is rotatably connected to the cavity (204) Inside, the other end of the T-shaped slot (205) is slidably connected to a rebound gear (206), a spring (207) is installed between the rebound gear (206) and the inner wall of the cavity (204), the upper surface of the rebound gear (206) is fixedly connected to a lever (208) located inside the T-shaped slot (205), one side of the rotating shaft (203) is fixedly connected to a latching tooth (209), and a plurality of latching grooves (210) corresponding to the latching teeth (209) are provided on a circumference of one side of the rebound gear (206) close to the rotating shaft (203).

5. The design structure of the post-disaster rescue stretcher according to claim 4 is characterized in that: The first pin shaft (6) is located in the middle of the movable rod (7), and the distance between the second pin shaft (8) and the third pin shaft (10) is equal to the distance between the rotating shaft (203) and the third pin shaft (10).

6. The design structure of the post-disaster rescue stretcher according to claim 1 is characterized in that: A fixed shaft (13) is fixedly connected to both the front and rear sides of the end of the second stretcher bar (3) away from the first stretcher bar (1); a roller (14) is rotatably connected to the outer surface of the fixed shaft (13); and a handle groove (15) is provided at the end of the second stretcher bar (3) away from the first stretcher bar (1).

7. The design structure of the post-disaster rescue stretcher according to claim 6 is characterized in that: Fixing belts (16) are installed on both the upper and lower sides of the second stretcher bar (3), and the fixing belts (16) are used to fix the injured person.

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