Portable multifunctional emergency stretcher based on folding framework

Abstract

The invention relates to the technical field of first-aid stretchers, in particular to a portable multifunctional first-aid stretcher based on a folding framework, which comprises a main stretcher support frame, an adjustable backrest is hinged to one end of the outer side of the main stretcher supporting frame through a hinge, a foldable leg supporting assembly is installed at the end, away from the adjustable backrest, of the outer side of the main stretcher supporting frame, a foot supporting assembly is installed on the outer side of the foldable leg supporting assembly, and telescopic moving assemblies are installed on the two sides of the lower end of the main stretcher supporting frame. The adjustable backrest can meet the sitting posture, semi-lying or flat lying requirements of a patient, for example, a patient with dyspnea needs to be in a semi-sitting lying position, and a patient with coma needs to be in a flat lying position; the foldable leg supporting assembly can support the lower limbs of the patient, muscle strain caused by suspension of the legs is avoided, the device is particularly suitable for patients with fracture or lower limb injury, meanwhile, the foot supporting assembly can adapt to foot postures of different patients and is suitable for patients with lower limb fracture and joint injury, pain is relieved through angle adjustment, and secondary injury is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of first-aid stretchers, and particularly to a portable multi-functional first-aid stretcher based on a folding skeleton. Background Art

[0002] Most of the first-aid stretchers currently used on the market are canvas stretchers, scoop stretchers, and folding stretchers; the canvas stretcher consists of two wooden or metal rods as the frame, with canvas or nylon fabric tightened in the middle to form a bearing surface; the scoop stretcher is composed of two symmetrical metal or plastic scoop plates on the left and right, which can be inserted from both sides of the wounded and then closed and fixed, and is used in conjunction with straps; the frame of the folding stretcher is connected by hinges and can be folded and stored, but still requires a large space after folding and has a single function.

[0003] Traditional first-aid stretchers cannot adjust the body position according to the patient's injury condition, only meet the basic need of horizontal transportation, lack the body position support function during the first-aid process, cannot stably transport patients with different injuries while meeting folding and storage, are inefficient in complex environments, and may cause secondary injuries due to improper handling, which is time-consuming and laborious.

[0004] Therefore, aiming at the problem that the above-mentioned traditional first-aid stretcher cannot stably transport patients with different injuries while meeting folding and storage and is inefficient in complex environments, a portable multi-functional first-aid stretcher based on a folding skeleton can be designed. Summary of the Invention

[0005] In order to overcome the problem that the traditional first-aid stretcher cannot stably transport patients with different injuries while meeting folding and storage and is inefficient in complex environments.

[0006] The technical solution is as follows: A portable multi-functional first-aid stretcher based on a folding skeleton, which includes a main stretcher support frame; one end of the outer side of the main stretcher support frame is hinged with an adjustable backrest through a hinge, a foldable leg support assembly is installed at the end of the outer side of the main stretcher support frame far from the adjustable backrest, a foot support assembly is installed outside the foldable leg support assembly, telescopic moving assemblies are installed on both sides of the lower end of the main stretcher support frame, the foldable leg support assembly internally includes an outer support skeleton rotatably connected to one side of the main stretcher support frame, a bottom support bar is fixedly connected to the bottom of the outer support skeleton, foldable auxiliary wheels are installed on both sides of the bottom support bar through a turning shaft, and a positioning pin is arranged on the turning shaft.

[0007] Further, the adjustable backrest internally includes a backrest skeleton plate rotatably connected to the other side of the main stretcher support frame through a rotary hinge, a ratchet-type first locking member is installed at the side end of the backrest skeleton plate, and a detachable head cushion is connected to the upper end of the backrest skeleton plate through a magic tape.

[0008] Further, folding armrests are installed on both sides of the upper end of the main stretcher support frame through folding hinges. Anti-slip soft pads are installed on the folding armrests. A main cushion plate is installed on the upper end of the main stretcher support frame, and its material is antibacterial Oxford cloth.

[0009] Further, a telescopically adjustable first buckle strap is installed on the upper end of the main stretcher support frame, and multiple groups of reinforced bearing rods are installed on the lower end of the main stretcher support frame.

[0010] Further, a fixed frame plate is fixedly connected to the inner side of the outer support frame, and a knob-type second locking member is installed on the side end of the outer support frame.

[0011] Further, a detachable leg cushion is connected to the fixed frame plate through Velcro, and a telescopically adjustable second buckle strap is installed on the outer side of the outer support frame.

[0012] Further, the interior of the foot support assembly includes an angle adjustment turning rod hinged to the inner side of the outer support frame through a rotating shaft. A threaded third locking member is installed on the side end of the angle adjustment turning rod. A foot support frame is fixedly connected to the outer side of the angle adjustment turning rod. A detachable foot pad is connected to the foot support frame through Velcro.

[0013] Further, the interior of the telescopic movement assembly includes four groups of protective outer frame plates installed on both sides of the lower end of the main stretcher support frame. A collapsible and retractable outer sleeve rod is installed on the protective outer frame plate through a folding shaft. An adjusting rod is slidably connected inside the outer sleeve rod. Multiple groups of adjustment holes are provided inside the adjusting rod. A locking bolt threadedly connected to the adjustment hole is detachably connected to the outer sleeve rod.

[0014] Further, a support cross frame rod is fixedly connected to the lower end of the adjusting rod, and self-locking moving wheels with brake pads are installed on both sides of the lower end of the support cross frame rod.

[0015] The beneficial effects are as follows: The present invention meets the sitting, semi-reclining or lying flat needs of patients through an adjustable backrest. For example, patients with breathing difficulties need a semi-sitting position, and comatose patients need a flat position. The foldable leg support component can support the lower limbs of patients, avoiding muscle strain caused by the legs hanging in the air, especially suitable for patients with fractures or lower limb injuries. The stretcher can be pushed on flat ground or gentle slopes, improving the transfer efficiency and reducing the burden on medical staff. At the same time, the foot support component can adapt to the foot postures of different patients, suitable for patients with lower limb fractures and joint injuries, reducing pain through angle adjustment and avoiding secondary injuries. The telescopic moving component can avoid waist injuries of medical staff caused by improper height during lifting and transportation, improving the operation convenience. It can be pushed by one person during short-distance transfer in the hospital, improving efficiency. Compared with traditional first aid stretchers that cannot meet the requirements of folding and storage while stably transporting patients with different injuries and illnesses, this first aid stretcher upgrades the single function of traditional stretchers to a composite function of "transfer + body position adjustment + convenient movement", and at the same time achieves breakthroughs in safety, comfort and portability, effectively solving the application limitations of traditional stretchers in complex scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a three-dimensional structural schematic diagram of a portable multifunctional first aid stretcher based on a folding frame according to the present invention; Figure 2 FIG. is a three-dimensional structural schematic diagram of the adjustable backrest according to the present invention; Figure 3 FIG. is a three-dimensional structural schematic diagram of the main cushion plate according to the present invention; Figure 4 FIG. is a three-dimensional structural schematic diagram of the reinforced pressure-bearing rod according to the present invention; Figure 5 FIG. is a three-dimensional structural schematic diagram of the detachable leg cushion according to the present invention; [[ID=e20]] Figure 6 FIG. is a three-dimensional structural schematic diagram of the foot support frame according to the present invention; Figure 7 FIG. is a three-dimensional structural schematic diagram of the telescopic moving component according to the present invention.

[0017] In the attached drawing reference numerals: 1, main stretcher support frame; 2, adjustable backrest; 101, folding armrest; 102, anti-slip soft pad; 103, main cushion plate; 104, first buckle strap; 105, reinforced pressure-bearing rod; 201, backrest skeleton plate; 202, ratchet type first locking member; 203, detachable headrest; 301, outer support skeleton; 302, bottom support strip; 303, foldable auxiliary wheel; 304, fixed frame plate; 305, knob type second locking member; 306, detachable leg rest; 307, second buckle strap; 401, angle adjustment rotating rod; 402, threaded type third locking member; 403, foot support skeleton; 404, detachable foot pad; 501, protective outer frame plate; 502, outer sleeve rod; 503, adjusting rod; 504, adjusting hole; 505, locking bolt; 506, supporting cross bar; 507, self-locking moving wheel. Detailed implementation mode

[0018] The present invention will be specifically introduced below in conjunction with the attached drawings and specific embodiments.

[0019] Please refer to Figures 1-7 , the present invention provides an embodiment: a portable multi-functional first aid stretcher based on a folding skeleton, including a main stretcher support frame 1; one end of the outer side of the main stretcher support frame 1 is hinged with an adjustable backrest 2 through a hinge, and a foldable leg support assembly is installed at one end of the outer side of the main stretcher support frame 1 away from the adjustable backrest 2, and a foot support assembly is installed on the outer side of the foldable leg support assembly. Telescopic moving assemblies are installed on both sides of the lower end of the main stretcher support frame 1. The foldable leg support assembly includes an outer support skeleton 301 rotatably connected to one side of the main stretcher support frame 1, a bottom support strip 302 is fixedly connected to the bottom of the outer support skeleton 301, and foldable auxiliary wheels 303 are installed on both sides of the bottom support strip 302 through a turning shaft, and a positioning pin is arranged on the turning shaft.

[0020] The adjustable backrest 2 includes a backrest skeleton plate 201 rotatably connected to the other side of the main stretcher support frame 1 through a rotary hinge. A ratchet type first locking member 202 is installed at the side end of the backrest skeleton plate 201, and a detachable headrest 203 is connected to the upper end of the backrest skeleton plate 201 through a magic tape; The ratchet type first locking member 202 is composed of a ratchet, a pawl and a spring. The ratchet is fixedly connected to the backrest skeleton plate 201. The pawl is installed on the main stretcher support frame 1 through a rotating shaft. The spring provides pressure for the pawl to make it engage with the ratchet. When the backrest skeleton plate 201 is rotated to adjust the angle, the pawl slides on the ratchet teeth. After reaching the appropriate angle, the pawl is embedded in the ratchet tooth groove, and locking is achieved by relying on the spring pressure to prevent the backrest from rotating by itself.

[0021] Please refer to Figures 3-7, in this embodiment, folding armrests 101 are installed on both sides of the upper end of the main stretcher support frame 1 through folding hinges, anti-slip soft pads 102 are installed on the folding armrests 101, and a main cushion plate 103 is installed on the upper end of the main stretcher support frame 1, and its material is antibacterial Oxford cloth.

[0022] A first strap 104 that can be telescopically adjusted is installed on the upper end of the main stretcher support frame 1, and multiple groups of reinforcement bearing rods 105 are installed on the lower end of the main stretcher support frame 1.

[0023] A fixed frame plate 304 is fixedly connected to the inner side of the outer support skeleton 301, and a knob-type second locking member 305 is installed on the side end of the outer support skeleton 301; The knob-type second locking member 305 is composed of a knob, a threaded rod, and a nut seat. The nut seat is fixed on the outer support skeleton 301. One end of the threaded rod is connected to the knob, and the other end passes through the nut seat and cooperates with the corresponding hole position on the main stretcher support frame 1; when it is necessary to adjust the angle of the outer support skeleton 301, rotate the knob to screw out the threaded rod, and the outer support skeleton can rotate freely; after adjusting to the appropriate angle, rotate the knob in the reverse direction, the threaded rod screws into the nut seat, and the outer support skeleton 301 is tightly connected to the main stretcher support frame 1 through the fastening force of the thread to achieve angle locking.

[0024] A detachable leg cushion 306 is connected to the fixed frame plate 304 through a magic tape, and a second strap 307 that can be telescopically adjusted is installed on the outer side of the outer support skeleton 301.

[0025] The internal part of the foot support assembly includes an angle adjustment rotating rod 401 hinged to the inner side of the outer support skeleton 301 through a rotating shaft. A threaded third locking member 402 is installed on the side end of the angle adjustment rotating rod 401. A foot support skeleton 403 is fixedly connected to the outer side of the angle adjustment rotating rod 401. A detachable foot pad 404 is connected to the foot support skeleton 403 through a magic tape; The threaded third locking member 402 is composed of a bolt, a nut, and a gasket. The nut is fixed on the outer support skeleton 301, and corresponding bolt holes are provided on the angle adjustment rotating rod 401. When it is necessary to adjust the angle of the foot support skeleton 403, loosen the bolt to separate it from the nut, and rotate the angle adjustment rotating rod 401; after adjusting to the appropriate angle, pass the bolt through the hole position of the rotating rod and screw it into the nut, and fix the angle adjustment rotating rod 401 on the outer support skeleton 301 through the pressure generated by tightening the bolt.

[0026] The internal part of the telescopic movement assembly includes four groups of protective outer frame plates 501 installed on both sides of the lower end of the main stretcher support frame 1. A collapsible outer sleeve rod 502 is installed on the protective outer frame plate 501 through a folding shaft. An adjusting rod 503 is slidably connected inside the outer sleeve rod 502. Multiple groups of adjusting holes 504 are opened inside the adjusting rod 503. A locking bolt 505 that is detachably connected to the outer sleeve rod 502 and is threadedly connected to the adjusting holes 504 is installed on the outer sleeve rod 502.

[0027] Deployment preparation stage: At the lower end of the adjusting rod 503, there is a fixedly connected supporting cross bar 506, and on both sides of the lower end of the supporting cross bar 506, there are self-locking moving wheels 507 with brake pads.

[0028] Take out the folded first aid stretcher from the storage state. At this time, the main stretcher support frame 1, the adjustable backrest 2, the foldable leg support assembly, and the telescopic moving assembly are all in the folded state.

[0029] Expand the main stretcher support frame 1 to a horizontal state, ensure its stable structure, and the reinforcing pressure-bearing rod 105 at the lower end automatically unfolds to form a support.

[0030] Pull the foldable storage outer sleeve rod 502 on the protective outer frame plate 501 to make it unfold around the folding axis.

[0031] Pull out the adjusting rod 503 from the outer sleeve rod 502, and according to usage requirements such as the ground height and the operator's height, adjust the extended length of the adjusting rod 503 through the adjusting holes 504 and the locking bolts 505. After adjustment, tighten the locking bolts 505 to fix it.

[0032] The supporting cross bar 506 descends in place with the adjusting rod 503, and the self-locking moving wheels 507 with brake pads contact the ground to ensure that the stretcher can move or be fixed stably.

[0033] Adjustment stage before transporting the wounded: Rotate the backrest skeleton plate 201, and the backrest skeleton plate 201 rotates around the main stretcher support frame 1 through the rotary hinge, and adjust the backrest angle according to the needs of the wounded, such as semi-recumbent position and supine position.

[0034] After adjusting to the appropriate angle, operate the ratchet type first locking member 202 to fix the backrest skeleton plate 201 to prevent the backrest from shaking during transportation.

[0035] According to the need, paste the detachable head cushion 203 on the upper end of the backrest skeleton plate 201 through the magic tape to provide support and comfort for the head of the wounded.

[0036] Unfold and adjust the foldable leg support assembly: Rotate the outer support skeleton 301, and the outer support skeleton 301 rotates and unfolds around the connecting shaft with the main stretcher support frame 1, and the bottom support bar 302 unfolds accordingly to form a stable support.

[0037] Pull the turning shaft to unfold the foldable auxiliary wheel 303 to the horizontal position and fix it with the positioning pin. The foldable auxiliary wheel 303 can assist in bearing weight and moving during transportation.

[0038] If you need to adjust the leg support angle, loosen the knob-type second locking member 305, adjust the angle of the outer support frame 301, and tighten the knob-type second locking member 305 to fix it after adjustment.

[0039] Attach the detachable leg cushion 306 to the fixing plate 304 through Velcro to provide cushioning for the wounded's legs; at the same time, adjust the retractable second strap 307 to prepare for fixing the wounded's legs. Adjust the foot support assembly: Rotate the angle adjustment lever 401. The angle adjustment lever 401 rotates around the rotation axis of the outer support frame 301, and adjust the angle of the foot support frame 403 according to the wounded's foot condition.

[0040] After adjusting to the appropriate angle, tighten the threaded third locking member 402 to fix the angle adjustment lever 401. Attach the detachable foot pad 404 to the foot support frame 403 through Velcro to provide support and protection for the wounded's feet.

[0041] Prepare to fix the wounded: Unfold the folding armrest 101. The folding armrest 101 unfolds around the folding hinge, and medical staff can grasp the anti-slip soft pad 102 to carry the stretcher.

[0042] Unfold the main cushion 103. Its antibacterial Oxford cloth material provides a hygienic and comfortable lying surface for the wounded. Adjust the retractable first strap 104 to prepare to fix the wounded's body after lying on the stretcher to ensure safe transportation.

[0043] Wounded transportation stage: Assist the wounded to lie on the stretcher smoothly, with the head placed at the detachable head cushion 203, and the body, legs, and feet are respectively placed in the corresponding support areas; Tighten the retractable first strap 104 to fix the wounded's body and prevent shaking during transportation; Adjust the retractable second strap 307 to fix the wounded's legs and ensure leg stability.

[0044] When transporting on flat ground, push the stretcher, and the self-locking moving wheels 507 and the foldable auxiliary wheels 303 work together to achieve smooth movement of the stretcher; if you need to stop, step on the brake pads of the self-locking moving wheels 507 to fix the stretcher.

[0045] When on complex terrain or in need of carrying, medical staff grasp the anti-slip soft pad 102 of the folding armrest 101 and use the stable support provided by the reinforced bearing rod 105 to safely carry the stretcher.

[0046] Storage stage: Loosen the retractable first strap 104 and the second strap 307, and remove the wounded.

[0047] Unscrew the threaded third locking member 402, reset the angle adjustment lever 401, and fold the foot support assembly; remove the detachable foot pad 404.

[0048] Unscrew the knob-type second locking member 305, fold the outer support frame 301, retract the bottom support bar 302 and the foldable auxiliary wheel 303, and remove the detachable leg cushion 306.

[0049] Loosen the ratchet-type first locking member 202, reset the backrest frame plate 201, and remove the detachable head cushion 203.

[0050] Fold the folding armrest 101 so that it fits against the main stretcher support frame 1.

[0051] Retract the adjusting rod 503 into the outer sleeve rod 502, loosen the locking bolt 505, and fold the outer sleeve rod 502 so that it is stored within the protective outer frame plate 501.

[0052] Fold the main stretcher support frame 1 to its minimum volume for easy storage and use during the next carry.

Claims

1. A portable multi-functional first aid stretcher based on a folding frame, characterized in that, It includes a main stretcher support frame (1); one end of the outer side of the main stretcher support frame (1) is hinged with an adjustable backrest (2) through a hinge, and a foldable leg support assembly is installed at one end of the outer side of the main stretcher support frame (1) away from the adjustable backrest (2). A foot support assembly is installed on the outer side of the foldable leg support assembly. Telescopic moving assemblies are installed on both sides of the lower end of the main stretcher support frame (1). The inside of the foldable leg support assembly includes an outer support skeleton (301) rotatably connected to one side of the main stretcher support frame (1). A bottom support bar (302) is fixedly connected to the bottom of the outer support skeleton (301). Foldable auxiliary wheels (303) are installed on both sides of the bottom support bar (302) through turning shafts, and positioning pins are arranged on the turning shafts.

2. The portable multi-functional first aid stretcher based on a folding frame according to claim 1, wherein, The inside of the adjustable backrest (2) includes a backrest skeleton plate (201) hinged to the other side of the main stretcher support frame (1) through a rotary hinge. A ratchet-type first locking member (202) is installed at the side end of the backrest skeleton plate (201). A detachable head cushion (203) is connected to the upper end of the backrest skeleton plate (201) through a magic tape.

3. A portable multi-functional first aid stretcher based on a folding frame according to claim 1, characterized in that, Foldable armrests (101) are installed on both sides of the upper end of the main stretcher support frame (1) through folding hinges. Anti-slip soft pads (102) are installed on the foldable armrests (101). A main cushion plate (103) is installed at the upper end of the main stretcher support frame (1), and its material is antibacterial Oxford cloth.

4. A portable multifunctional first aid stretcher based on a folding frame according to claim 3, characterized in that, A telescopically adjustable first buckle strap (104) is installed at the upper end of the main stretcher support frame (1), and multiple groups of reinforcing pressure-bearing rods (105) are installed at the lower end of the main stretcher support frame (1).

5. A portable multi-functional first aid stretcher based on a folding frame according to claim 1, characterized in that, A fixed frame plate (304) is fixedly connected to the inner side of the outer support skeleton (301), and a knob-type second locking member (305) is installed at the side end of the outer support skeleton (301).

6. The portable multifunctional first-aid stretcher based on a folding skeleton according to claim 5, characterized in that, A detachable leg cushion (306) is connected to the fixed frame plate (304) through a magic tape, and a telescopically adjustable second buckle strap (307) is installed on the outer side of the outer support skeleton (301).

7. A portable multifunctional first aid stretcher based on a folding frame according to claim 1, characterized in that, The inside of the foot support assembly includes an angle-adjusting rotating rod (401) hinged to the inner side of the outer support skeleton (301) through a rotating shaft. A threaded third locking member (402) is installed at the side end of the angle-adjusting rotating rod (401). A foot support skeleton (403) is fixedly connected to the outer side of the angle-adjusting rotating rod (401). A detachable foot pad (404) is connected to the foot support skeleton (403) through a magic tape.

8. A portable multi-functional first aid stretcher based on a folding frame according to claim 1, characterized in that, The inside of the telescopic moving assembly includes four groups of protective outer frame plates (501) installed on both sides of the lower end of the main stretcher support frame (1). A foldable and retractable outer sleeve rod (502) is installed on the protective outer frame plate (501) through a folding shaft. An adjusting rod (503) is slidably connected inside the outer sleeve rod (502). Multiple groups of adjusting holes (504) are opened inside the adjusting rod (503). A locking bolt (505) threadedly connected to the adjusting holes (504) is detachably connected to the outer sleeve rod (502).

9. The portable multifunctional first-aid stretcher based on a folding framework according to claim 8, wherein, A support cross bar (506) is fixedly connected to the lower end of the adjusting rod (503). Self-locking moving wheels (507) with brake pads are installed on both sides of the lower end of the support cross bar (506).

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