Single person backpack folding stretcher

Abstract

The application discloses a single person backpack type folding stretcher and relates to the technical field of fire-fighting auxiliary equipment. The single person backpack type folding stretcher comprises four side supports, the side supports are rotationally connected in pairs in a top-connection mode, bottom rods are rotationally connected to the bottom of the side supports, hollow studs are threadedly inserted into the side walls of the bottom of the side supports, a handle and a shoulder strap are fixedly arranged on the side of the bottom of the side support close to the top of the stretcher, locking assemblies are movably connected to the inside of the side supports, and the locking assemblies comprise clamping rods slidably clamped to the inner walls of the side supports. The main body frame of the stretcher is formed by the side supports and the bottom rods, the auxiliary body frame of the stretcher is formed by the hinged frames, the side supports, the bottom rods and the hinged frames can be folded to reduce the size of the stretcher, thus facilitating single person carrying and transportation, the position of the hinged frame relative to the side support is adjusted when the stretcher is unfolded, the side support is locked by the clamping rod, and the bottom rod is locked by the hollow stud, so that comfortable, safe and reliable stretcher transfer conditions of the wounded are provided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire-fighting auxiliary equipment, in particular to a single person carrying type folding stretcher. BACKGROUND

[0002] In order to quickly and efficiently save lives, various fire-fighting equipment has emerged in large numbers, among which the fire-fighting stretcher for rescue plays a crucial role in the scene. Compared with the conventional fixed medical stretcher, it has a larger adjustment degree, is convenient to carry, and is suitable for single person to quickly transfer the injured in emergency situations, thus meeting the needs of fire emergency rescue in special situations.

[0003] Chinese patent No. CN115068218A discloses a folding stretcher convenient for single person to implement rescue, which comprises a lying plate, a handle is arranged at the upper end face of the lying plate; upper extension devices are arranged at the lower end of the lying plate; the upper extension devices are fixed to the lying plate through first limiting structures; the upper extension devices are matched with lower extension devices through second limiting structures; the lower extension devices on the left and right sides are connected through a pedal; the pedal is provided with main pulleys which are symmetrical to each other; the lying plate is provided with pull arms which are symmetrical to each other; the pull arms are fixed to the lying plate through first folding structures; and a first hidden groove is arranged on the front side wall of the upper part of the lying plate. The folding stretcher convenient for single person to implement rescue can realize the movement of itself only by single person, is convenient for single person to implement rescue on patients or the wounded, can fold the stretcher, effectively shortens the length of the stretcher, and is convenient for placing and moving the stretcher.

[0004] The folding stretcher in the above-mentioned patent can fold the stretcher and effectively shorten the length of the stretcher when in use, but the volume of the stretcher is still defective in terms of width. In combination with the actual situation, at present, in some critical fire rescue situations, the fire rescue personnel carry other articles, so that it is still not convenient to carry and transport the stretcher by single person. When the stretcher is unfolded to transfer the injured, the placement posture of the injured on the stretcher is fixed, and the injured may not be able to use the stretcher due to the fixed posture. SUMMARY

[0005] The present application aims to solve the problem that the general single person carrying folding stretcher is inconvenient to carry and transport and difficult to provide comprehensive and reliable stretcher riding conditions due to low folding shrinkage rate when in use, and provides a single person carrying type folding stretcher.

[0006] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme:

[0007] The utility model provides a single person backpack type folding stretcher, including four side supports, two two rotation connections with top end connection form between the side support, the bottom rod is rotationally connected to the bottom of side support, the hollow stud is inserted with the side wall of bottom of side support, the side of bottom of side support is respectively fixed with the handle and the shoulder strap near the stretcher top, the locking assembly is movably connected in the inside of side support, the locking assembly includes the clamping rod of sliding joint in the inner wall of side support, the pin piece of active hinged in the bottom of clamping rod, the pressing plate of active connection between pin piece, the outside wall of side support is movably connected with the lying curve component, the sliding plate of sliding installation in the inner wall of side support, the elastic i beam of sliding insertion on the sliding plate, the sliding block of fixed setting in the bottom end of sliding plate, the hinged frame of active connection between sliding block, the first textile layer is fixedly arranged between the hinged frame, the second textile layer is fixedly arranged between the sliding block.

[0008] Further, the bottom rod is movably hinged, and one end of the bottom rod connected with the side support comprises a elastic pin movably clamped in the hollow stud.

[0009] Further, the locking assembly further comprises a pin block slidingly installed on the side wall of the side support, a connecting rod movably connected between the pin block and the bottom rod, and a silk face screw pipe rotationally installed at the bottom of the inner cavity of the side support.

[0010] Further, the surface of the silk face screw pipe comprises a silk groove movably clamped with the pin block.

[0011] Further, the clamping rod is threadedly connected in the silk face screw pipe, and the portion of the clamping rod at the two-two connected end of the side support is formed with a recess and an outer convex portion respectively.

[0012] Further, the sliding plate slides along the length direction of the side support, and the pressing plate slides along the vertical direction of the sliding direction of the sliding plate.

[0013] Further, the bottom of the elastic i beam comprises a tooth surface portion movably abutting against the inner wall of the side support.

[0014] Further, the portion of the second textile layer close to the sliding block is movably arranged on the surface of the stretcher, and the portion of the second textile layer away from the sliding block is fixedly connected with the side support.

[0015] Further, the fixed lock belt is fixedly installed on the upper side of the stretcher between the side supports, and the roller is movably installed on the bottom of the stretcher along the direction of the bottom of the stretcher.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The present application, by the side support and the bottom bar constitute the main frame of the stretcher, and the hinge frame constitutes the secondary frame of the stretcher, the side support and the bottom bar can be folded to reduce the main frame, and the hinge frame can also be folded to reduce the secondary frame to attach to the side support, both in terms of length and width of the stretcher are reduced, thus facilitating single person carrying, after the stretcher is unfolded and locked, the handle and the sling can be used to realize the single person back or drag the stretcher during fire rescue.

[0018] 2. The present application, by unfolding the stretcher, using the abutting property of the elastic I-beam on the inner wall of the side support, the abutting side support is opened horizontally in advance, during which the position of the adjusting slider is adjusted according to the required body posture of the injured along the length direction of the two sides of the side support, so that the hinge frame drives the first textile layer to change the embedding depth for the hips of the injured, and simultaneously drives the second textile layer to change the corresponding bearing area, and then the two side supports are pulled apart to make the bottom bar be clamped in the hollow stud, the clamping rods in the side supports are clamped with each other, thereby limiting the deformation of the stretcher, completely shaping the stretcher, to provide comfortable, safe and reliable stretcher transfer conditions for the injured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the three-dimensional structure diagram of the single person back and foldable stretcher of the present application;

[0020] Figure 2 is the three-dimensional structure diagram of the side support of the single person back and foldable stretcher of the present application;

[0021] Figure 3 is the three-dimensional structure diagram of the hinge frame of the single person back and foldable stretcher of the present application;

[0022] Figure 4 is the three-dimensional structure diagram of the locking assembly of the single person back and foldable stretcher of the present application;

[0023] Figure 5 is the three-dimensional structure diagram of the pin block of the single person back and foldable stretcher of the present application;

[0024] Figure 6 is the three-dimensional structure diagram of the silk surface screw pipe of the single person back and foldable stretcher of the present application;

[0025] Figure 7 is the three-dimensional structure diagram of the lying bending assembly of the single person back and foldable stretcher of the present application.

[0026] Fig. 1, side support; 2, bottom bar; 3, hollow stud; 4, handle; 5, sling; 6, fixed lock belt; 7, locking assembly; 71, pin block; 72, connecting rod; 73, silk surface screw pipe; 74, clamping rod; 75, pin; 76, pressing plate; 8, lying bending assembly; 81, sliding plate; 82, elastic I-beam; 83, sliding block; 84, hinge frame; 85, first textile layer; 86, second textile layer. DETAILED DESCRIPTION

[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0028] As shown in Figures 1-7 A single person backpack type folding stretcher, comprising four side supports 1, the side supports 1 are rotatably connected in pairs by a top end connection, the bottom of the side supports 1 is rotatably connected with a bottom rod 2, the bottom of the side supports 1 is threadedly connected with a hollow stud 3, a handle 4 and a shoulder strap 5 are respectively fixed on one side of the bottom of the side supports 1 near the top of the stretcher, a locking assembly 7 is movably connected inside the side supports 1, the locking assembly 7 comprises a clamping rod 74 slidably connected to the inner wall of the side supports 1, a pin 75 movably hinged to the bottom of the clamping rod 74, and a pressing plate 76 movably connected between the pins 75, the locking assembly 7 further comprises a pin block 71 slidably mounted on the side wall of the side supports 1, a connecting rod 72 movably connected between the pin block 71 and the bottom rod 2, and a silk face screw pipe 73 rotatably mounted at the bottom of the inner cavity of the side supports 1, an outer wall of the side supports 1 is movably connected with a lying bending assembly 8, the lying bending assembly 8 comprises a sliding plate 81 slidably mounted on the inner wall of the side supports 1, a spring I-beam 82 slidably inserted on the sliding plate 81, a sliding block 83 fixed at the bottom end of the sliding plate 81, and a hinged frame 84 movably connected between the sliding blocks 83, a first textile layer 85 is fixed between the hinged frames 84, and a second textile layer 86 is fixed between the sliding blocks 83.

[0029] More specifically, the main body frame of the stretcher is formed by the side support 1 and the bottom bar 2, and the auxiliary body frame of the stretcher is formed by the hinged frame 84. The side support 1 is stabilized by the clamping rod 74 which is clamped to each other. The bottom bar 2 is stabilized by the elastic pin at the end of the clamping to the hollow stud 3. The hinged frame 84 is stabilized by the pressing plate 76 extruding the elastic I-beam 82, driving the sliding plate 81 to fix the sliding block 83. The side support 1 and the bottom bar 2 can be folded to reduce the main body frame. The hinged frame 84 can also be folded to reduce the auxiliary body frame to be attached to the side support 1. Whether in terms of length or width, the stretcher is reduced, which is convenient for single person to carry during fire rescue. After the stretcher is unfolded and locked, the handle 4 and the shoulder strap 5 can be used to realize single person to back or drag the stretcher. When the stretcher is unfolded in a contracted state, the elastic I-beam 82 is used to abut the inner wall of the side support 1. The friction resistance between the hinged frame 84 and the side support 1 based on the elastic I-beam 82 tends to be in a fixed connection state. The side support 1 is opened horizontally in advance. According to the required position of the sliding block 83 along the length direction of the side support 1, the hinged frame 84 drives the first textile layer 85 to change the embedding depth for the patient's hips, and the second textile layer 86 changes the corresponding bearing area. Subsequently, the side supports 1 on both sides are pulled apart, so that the bottom bar 2 is clamped in the hollow stud 3, the angle of the bottom bar 2 relative to the side support 1 is increased, the bottom bar 2 drives the connecting rod 72, the pin block 71 moves towards one side of the bottom of the side support 1, the silk face screw pipe 73 is deflected by the pin block 71, the clamping rod 74 moves towards one side of the top of the side support 1, the clamping rod 74 in the two side supports 1 is clamped by the corresponding recess and the convex part, at the same time, the clamping rod 74 drives the pin piece 75 to push the pressing plate 76 to move down, the elastic I-beam 82 is pressed to limit the movement of the sliding plate 81, so as to limit the deformation of the stretcher and completely shape the stretcher, thereby providing comfortable, safe and reliable stretcher transfer conditions for the patient.

[0030] As shown in Figures 3-4 , in some embodiments, the bottom bar 2 is movably hinged, and one end of the bottom bar 2 connected with the side support 1 comprises an elastic pin movably clamped in the hollow stud 3. Specifically, after the two side supports 1 on one side are connected and shaped, the side supports 1 on both sides are maximally combined, the bottom bar 2 is deflected, the elastic pin is inserted into the hollow stud 3, and the stretcher is completely shaped. When the stretcher is folded, rotating the hollow stud 3 outward can release the limitation of the bottom bar 2.

[0031] As shown in Figures 4-6 , in some embodiments, the locking assembly 7 further comprises a pin block 71 slidably installed on the side wall of the side support 1, a connecting rod 72 movably connected between the pin block 71 and the bottom bar 2, and a silk face screw pipe 73 rotatably installed at the bottom of the inner cavity of the side support 1.

[0032] As shown in Figures 4-6As shown in the drawings, in some embodiments, the wire surface screw pipe 73 surface includes a wire groove with the pin block 71 active clamping, the clamping rod 74 is screwed in the wire surface screw pipe 73, and the clamping rod 74 is in the part of the two connecting ends of the side support 1, respectively forming the recessed part and the outer convex part embedded, specifically, when the connecting rod 72 drives the pin block 71 to move towards the side of the bottom of the side support 1, the wire surface screw pipe 73 is deflected by the pin block 71, and the clamping rod 74 is driven to move towards the side of the top of the side support 1, so that the clamping rod 74 in the two side supports 1 is clamped by the corresponding recessed part and the outer convex part embedded, so as to shape the side support 1.

[0033] As shown in the drawings, Figures 5-7 In some embodiments, the sliding plate 81 slides along the length direction of the side support 1, the pressing plate 76 slides along the vertical direction of the sliding direction of the sliding plate 81, and the bottom of the elastic I-beam 82 includes a tooth surface part which is in active abutment with the inner wall of the side support 1, specifically, when the adjacent clamping rods 74 are connected and moved, the clamping rod 74 drives the pin piece 75 to push the pressing plate 76 to move downward, and the elastic I-beam 82 is pressed to limit the movement of the sliding plate 81, so as to limit the deformation of the stretcher hinge frame 84 part, and ensure stable unfolding.

[0034] As shown in the drawings, Figures 1-3 In some embodiments, the second textile layer 86 is close to the side part of the sliding block 83, and the side part away from the sliding block 83 is fixedly connected with the side support 1, specifically, during adjusting the stretcher unfolding, the positions of the two adjusting sliding blocks 83 are respectively adjusted along the length direction of the two sides of the side support 1 according to the required body posture of the wounded, so that the hinge frame 84 drives the first textile layer 85 to change the embedded depth for the buttocks of the wounded, and at the same time, the second textile layer 86 is driven to change the supporting area of the wounded trunk, so as to provide targeted stretcher supporting conditions.

[0035] As shown in the drawings, Figures 1-4 In some embodiments, the fixed lock belt 6 is fixedly installed between the side supports 1 on the upper side of the stretcher, and the roller is movably installed on the bottom of the stretcher.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single person backpacking folding stretcher comprising four side supports (1), characterized in that, The side support (1) is rotatably connected in the form of top end connection, the bottom of the side support (1) is rotatably connected with a bottom rod (2), the bottom of the side support (1) is threadedly connected with a hollow stud (3) on the side wall, the bottom of the side support (1) is respectively fixed with a handle (4) and a shoulder strap (5) on the side close to the top of the stretcher, the inside of the side support (1) is movably connected with a locking assembly (7), the locking assembly (7) comprises a clamping rod (74) slidably clamped on the inner wall of the side support (1), a pin piece (75) movably hinged on the bottom of the clamping rod (74), and a pressing plate (76) movably connected between the pin pieces (75), the outer wall of the side support (1) is movably connected with a lying curve assembly (8), the lying curve assembly (8) comprises a sliding plate (81) slidably mounted on the inner wall of the side support (1), a spring I-beam (82) slidably inserted on the sliding plate (81), a sliding block (83) fixed on the bottom end of the sliding plate (81), and a hinged frame (84) movably connected between the sliding blocks (83), a first textile layer (85) is fixed between the hinged frames (84), and a second textile layer (86) is fixed between the sliding blocks (83). The bottom rod (2) is movably hinged, and one end of the bottom rod (2) connected with the side support (1) comprises a spring pin movably clamped in the hollow stud (3). The locking assembly (7) further comprises a pin block (71) slidably mounted on the side wall of the side support (1), a connecting rod (72) movably connected between the pin block (71) and the bottom rod (2), and a silk face screw pipe (73) rotatably mounted at the bottom of the inner cavity of the side support (1).

2. The single person backpacked folding stretcher according to claim 1, wherein, The surface of the silk face screw pipe (73) comprises a silk groove movably clamped with the pin block (71).

3. The single person backpacked folding stretcher according to claim 1, wherein, The clamping rod (74) is threadedly connected in the silk face screw pipe (73), and the part of the clamping rod (74) at the two connected ends of the side support (1) is respectively formed with a recess and an outer convex part.

4. The single person backpacked folding stretcher according to claim 1, wherein, The sliding plate (81) slides along the length direction of the side support (1), and the pressing plate (76) slides along the vertical direction of the sliding direction of the sliding plate (81).

5. The single person backpacked folding stretcher according to claim 1, wherein, The bottom of the spring I-beam (82) comprises a tooth surface portion movably abutting against the inner wall of the side support (1).

6. The single person backpacked folding stretcher of claim 1, wherein, The part of the second textile layer (86) close to the sliding block (83) is movably arranged on the surface of the stretcher, and the part of the second textile layer (86) away from the sliding block (83) is fixedly connected with the side support (1).

7. The single person backpacked folding stretcher of claim 1, wherein, The side support (1) is fixedly installed with a fixed lock belt (6) on the upper side of the stretcher, and the bottom of the side support (1) is movably installed with a roller along the direction of the bottom of the stretcher.

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