Quick-release stretcher with pulleys

Abstract

The invention discloses a quick-release stretcher with pulleys, and relates to the technical field of emergency medical rescue equipment, the quick-release stretcher comprises a stretcher bottom plate, an adjusting stretcher assembly is arranged above the stretcher bottom plate, the adjusting stretcher assembly comprises a rocker, the front end of the rocker is fixedly connected with a rotating gear, and the two sides of the rotating gear are movably connected with half gear rods; the half gear rods are meshed with the rotating gear through tooth grooves, the rear sides of the ends, away from the rotating gear, of the half gear rods are movably connected with second movable rods, the top ends of the ends, away from the rotating gear, of the half gear rods are fixedly connected with first connecting rods, and the half gear rods are located between the second movable rods and the first connecting rods. According to the quick-release stretcher with the pulleys, the length of the stretcher can be shortened by adjusting the stretcher assembly, the length of the stretcher is shortened, the stretcher can smoothly pass through a channel which cannot pass through originally due to length limitation, and the safety in the transportation process in a narrow space is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency medical rescue equipment, and particularly to a quick-release stretcher with pulleys. Background Art

[0002] A medical stretcher is an important equipment for an ambulance. During the process of transporting a patient from the accident scene to the hospital, the stretcher can be fixed in the ambulance to ensure that the patient remains stable during the bumpy transportation process, and at the same time, it is also convenient for medical staff to perform basic first-aid care on the patient in the vehicle.

[0003] Since the stretcher cannot be adjusted according to the narrow space, rescue personnel may need to carry the stretcher manually to try to pass through the narrow space. These additional operations will consume a lot of physical strength and time, thus reducing the overall efficiency of the rescue. Especially for seriously injured patients, at the same time, it will make the patient in an unstable state on the stretcher, increasing the risk of the patient slipping and getting injured from the stretcher. Summary of the Invention

[0004] The present invention discloses a quick-release stretcher with pulleys, aiming to solve the technical problems that the stretcher cannot be adjusted according to the narrow space, and rescue personnel may have to carry it manually through a narrow passage, which not only consumes physical strength and time, reduces the rescue efficiency, but also causes the patient to be unstable on the stretcher, increasing the risk of slipping and getting injured.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A quick-release stretcher with pulleys, including a stretcher bottom plate, an adjustable stretcher assembly is arranged above the stretcher bottom plate. The adjustable stretcher assembly includes a rocker. A rotating gear is fixedly connected to the front end of the rocker. Both sides of the rotating gear are movably connected with half-gear rods. The half-gear rods are meshed with the rotating gear through tooth grooves. The rear sides of the ends of the half-gear rods far from the rotating gear are movably connected with second movable rods respectively, and the tops of the ends of the half-gear rods far from the rotating gear are fixedly connected with first connecting rods respectively. The half-gear rods are located between the second movable rods and the first connecting rods. The front ends of the first connecting rods are movably connected with second connecting rods respectively, and the tops of the second connecting rods are fixedly connected with movable stretcher plates respectively. The ends of the second movable rods far from the movable stretcher plates are fixedly connected with adjusting plates respectively, and symmetrically arranged adjusting plates are fixedly connected with symmetrically arranged first movable rods on the sides close to the rocker. The symmetrically arranged adjusting plates are located above the movable stretcher plates.

[0007] By setting up a stretcher bottom plate and an adjustable stretcher assembly, when adjusting the stretcher, the rocker is shaken, and the rotating gear at the front end of the rocker rotates accordingly. Since the rotating gear meshes with the two side half-gear rods through the tooth grooves, when the rotating gear rotates, it will drive the half-gear rods to move, and the second movable rod will generate corresponding actions along with the movement of the half-gear rods (the specific action direction and method depend on the rotation direction of the half-gear rods, etc.). At the same time, the movable stretcher plate will adjust the length of the stretcher under the drive of the second connecting rod. The inside of the adjusting plate is connected by hinges and can be switched between the folded state and the unfolded state. During the process, the length of the stretcher can be shortened through the adjustable stretcher assembly, so that the stretcher can smoothly pass through the passage that could not be passed due to length restrictions originally, ensuring safety during transportation in narrow spaces.

[0008] In a preferred solution, one end of each of the two first movable rods away from the adjusting plate is movably connected to a connecting bottom plate. A fixed connection is provided between the bottom end of the connecting bottom plate and the top end of the stretcher bottom plate. Moreover, a plurality of quick-release structures are fixedly connected to the bottom end of the stretcher bottom plate. The bottom ends of the quick-release structures are fixedly connected to a plurality of pulley frames. A plurality of self-locking pulleys are movably connected inside each pulley frame. A plurality of safety belt buckles are fixedly connected to the top end of the adjusting plate. Fixed belts are movably connected above the symmetric safety belt buckles. The quick-release structure includes an external quick-release shell. An internal quick-release shell is movably connected inside the external quick-release shell. A compression spring is fixedly connected to the outside of the external quick-release shell. A sliding ring is movably connected to the outside of the compression spring. The inner side of the sliding ring is in contact with the outside of the external quick-release shell. Symmetric telescopic rods are fixedly connected inside both the external quick-release shell and the internal quick-release shell. Baffles are fixedly connected inside both the external quick-release shell and the internal quick-release shell. Circular holes are opened in the baffles. The telescopic rods are slidably connected between the circular holes. Buffer springs are fixedly connected to the front ends of the baffles. The buffer springs are located outside the telescopic rods. The opposite sides of the telescopic rods are in contact with each other.

[0009] By setting up a connecting base plate, a quick-release structure, a pulley frame, a self-locking pulley fixing belt and a seat belt buckle, when transporting the wounded, multiple quick-release structures at the bottom end of the frame base plate are fixedly connected to the pulley frame. Multiple self-locking pulleys inside the pulley frame can move. During the movement of the stretcher, the self-locking pulleys can rotate freely to achieve smooth transportation of the stretcher. When encountering different road conditions, such as slopes or uneven ground, the pulleys can rotate adaptively according to the actual situation to reduce the bumps during the transportation of the stretcher. The cooperation between the seat belt buckle and the fixing belt is used to fix the patient to prevent the patient from slipping due to the shaking or tilting of the stretcher, ensuring the safety of the patient. When subjected to external forces, the sliding ring can move outside the outer quick-release shell under the elastic action of the compression spring. When the quick-release structure is subjected to pressure or tension, the telescopic rod will slide in the round hole, and the buffer spring plays a buffering role, absorbing and releasing energy, enabling the quick-release structure to withstand a certain impact force while maintaining the stability of the structure, facilitating the quick disassembly and installation of components such as pulleys.

[0010] In a preferred solution, multiple movable fence assemblies are provided on both sides of the adjusting plate. The movable fence assembly includes a bottom frame, and the front end of the bottom frame is fixedly connected between both sides of the adjusting plate. A plurality of fixed seats are fixedly connected to the top end of the bottom frame. A plurality of rotating rods are rotatably connected inside the fixed seats. The ends of the rotating rods away from the fixed seats are movably connected to movable seats, and armrest plates are fixedly connected to the top ends of the movable seats. A connecting frame is fixedly connected to the outer side of the rotating rod at the frontmost position away from the rocker. A fixed round seat is fixedly connected to the top end of the connecting frame. An electric telescopic driving rod is movably connected inside the fixed round seat, and the top end of the electric telescopic driving rod is fixedly connected between the bottom ends of the armrest plates.

[0011] By setting up the movable fence assembly, when there is a need for adjustment (such as adjusting the height or angle of the fence to adapt to different situations, such as passing through a low space or facilitating medical staff operation), since the bottom frame is fixedly connected to both sides of the adjusting plate, the bottom frame is relatively stable. Medical staff move the rotating rods inside the fixed seats through the armrest plates, thereby driving the armrest plates fixedly connected to the top ends to generate displacement. At the same time, the electric telescopic driving rod starts to extend and extends into the inside of the fixed round seat for overall fixation, facilitating medical staff to lower the height to pass through a narrow space, and then maintaining this state to continue to play a protective role.

[0012] As can be seen from the above, the quick-release stretcher with pulleys provided by the present invention has the technical effect that by adjusting the stretcher assembly, the length of the stretcher can be shortened, and the length of the stretcher is shortened so that the stretcher can smoothly pass through the passage that could not be passed due to length restrictions, ensuring the safety during transportation in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the quick-release stretcher with pulleys proposed by the present invention.

[0014] Figure 2 This is a schematic diagram of the bottom structure of the quick-release stretcher with pulleys proposed by the present invention.

[0015] Figure 3 This is a schematic diagram of the internal structure of the quick-release structure of the quick-release stretcher with pulleys proposed by the present invention.

[0016] Figure 4 This is a schematic diagram of the structure of the adjustable stretcher assembly of the quick-release stretcher with pulleys proposed by the present invention.

[0017] Figure 5 This is a schematic diagram of the structure of the movable fence assembly of the quick-release stretcher with pulleys proposed by the present invention.

[0018] In the drawings: 1, stretcher bottom plate; 2, seat belt buckle; 3, connecting bottom plate; 4, fixing belt; 5, adjustable stretcher assembly; 501, rocker; 502, rotating gear; 503, semi-gear rod; 504, movable rod one; 505, movable rod two; 506, connecting rod one; 507, connecting rod two; 508, adjusting plate; 509, movable stretcher plate; 6, movable fence assembly; 601, chassis; 602, fixed seat; 603, rotating rod; 604, movable seat; 605, armrest plate; 606, connecting frame; 607, fixed round seat; 608, electric telescopic drive rod; 7, quick-release structure; 701, external quick-release shell; 702, internal quick-release shell; 703, sliding ring; 704, telescopic rod; 705, baffle; 706, compression spring; 707, buffer spring; 8, pulley frame; 9, self-locking pulley. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] The quick-release stretcher with pulleys disclosed by the present invention is mainly applied to the scenario where the stretcher cannot be adjusted according to narrow spaces, and rescue personnel may have to carry it manually through narrow passages. This not only consumes physical strength and time, reduces the rescue efficiency, but also makes the patient unstable on the stretcher, increasing the risk of slipping and getting injured.

[0021] Refer to Figures 1 - 5, A quick-release stretcher with pulleys, including a stretcher bottom plate 1, an adjustable stretcher assembly 5 is arranged above the stretcher bottom plate 1. The adjustable stretcher assembly 5 includes a rocker 501. The front end of the rocker 501 is connected with a rotating gear 502 through a bolt, and both sides of the rotating gear 502 are rotatably connected with half-gear rods 503. The half-gear rods 503 are meshed with the rotating gear 502 through tooth grooves. The rear sides of the ends of the half-gear rods 503 far from the rotating gear 502 are rotatably connected with second movable rods 505, and the tops of the ends of the half-gear rods 503 far from the rotating gear 502 are connected with first connecting rods 506 through bolts. The half-gear rods 503 are located between the second movable rods 505 and the first connecting rods 506. The front ends of the first connecting rods 506 are rotatably connected with second connecting rods 507, and the tops of the second connecting rods 507 are connected with movable stretcher plates 509 through bolts. The ends of the second movable rods 505 far from the movable stretcher plates 509 are connected with adjusting plates 508 through bolts, and symmetric adjusting plates 508 are connected with symmetric first movable rods 504 through bolts on the side close to the rocker 501. The symmetric adjusting plates 508 are located above the movable stretcher plates 509.

[0022] Refer to Figure 1 , Figure 2 and Figure 3 , In a preferred embodiment, the ends of the two first movable rods 504 far from the adjusting plates 508 are rotatably connected with a connecting bottom plate 3. The bottom end of the connecting bottom plate 3 is connected with the top end of the stretcher bottom plate 1 through a bolt, and a plurality of quick-release structures 7 are connected with the bottom end of the stretcher bottom plate 1 through bolts. The bottom ends of the quick-release structures 7 are connected with a plurality of pulley frames 8 through bolts. A plurality of self-locking pulleys 9 are rotatably connected inside the pulley frames 8. The top ends of the adjusting plates 508 are connected with a plurality of seat belt buckles 2 through bolts. Fixed belts 4 are slidably connected above the symmetric seat belt buckles 2. The quick-release structure 7 includes an outer quick-release shell 701. An inner quick-release shell 702 is movably connected inside the outer quick-release shell 701. A compression spring 706 is connected with the outside of the outer quick-release shell 701 through a bolt, and a sliding ring 703 is slidably connected with the outside of the compression spring 706. The inner side of the sliding ring 703 is in contact with the outside of the outer quick-release shell 701. Symmetric telescopic rods 704 are connected with the inside of the outer quick-release shell 701 and the inner quick-release shell 702 through bolts. Symmetric baffles 705 are connected with the inside of the outer quick-release shell 701 and the inner quick-release shell 702 through bolts, and round holes are formed in the baffles 705. The telescopic rods 704 are slidably connected between the round holes. Buffer springs 707 are connected with the front ends of the baffles 705 through bolts. The buffer springs 707 are located outside the telescopic rods 704, and the opposite sides of the telescopic rods 704 are in contact with each other.

[0023] Refer to Figure 1 and Figure 5, in a preferred embodiment, a plurality of movable fence assemblies 6 are provided on both sides of the adjusting plate 508. The movable fence assembly 6 includes a chassis 601, and the front end of the chassis 601 is bolted to both sides of the adjusting plate 508. A plurality of fixing seats 602 are bolted to the top end of the chassis 601. A plurality of rotating rods 603 are rotatably connected inside the fixing seats 602. One end of the rotating rod 603 away from the fixing seat 602 is rotatably connected to a movable seat 604 through rotation, and an armrest plate 605 is bolted to the top end of each movable seat 604. A connecting frame 606 is bolted to the outside of the rotating rod 603 at the frontmost position away from the rocker 501. A fixed circular seat 607 is bolted to the top end of the connecting frame 606. An electric telescopic drive rod 608 is slidably connected inside the fixed circular seat 607, and the top end of the electric telescopic drive rod 608 is bolted to the bottom end of the armrest plate 605.

[0024] Working principle: When adjusting the stretcher, shake the rocker 501, and the rotating gear 502 at the front end of the rocker 501 rotates accordingly. Since the rotating gear 502 meshes with the two side half-gear rods 503 through the tooth grooves, when the rotating gear 502 rotates, it will drive the half-gear rod 503 to move, and the second movable rod 505 will perform corresponding actions along with the movement of the half-gear rod 503 (the specific movement direction and method depend on the rotation direction of the half-gear rod 503, etc.). At the same time, the movable stretcher board 509 will adjust the length of the stretcher under the drive of the second connecting rod 507. The inside of the adjusting plate 508 is connected by hinges and can be switched between the folded state and the unfolded state;

[0025] When transporting the wounded, a plurality of quick-release structures 7 at the bottom end of the stretcher bottom plate 1 are fixedly connected to the pulley frame 8. A plurality of self-locking pulleys 9 inside the pulley frame 8 can move. During the movement of the stretcher, the self-locking pulleys 9 can rotate freely to achieve smooth transportation of the stretcher. The cooperation between the seat belt buckle 2 and the fixing belt 4 is used to fix the patient to prevent the patient from slipping due to the shaking or tilting of the stretcher and ensure the safety of the patient. When an external force is applied, the sliding ring 703 can move outside the outer quick-release shell 701 under the elastic action of the compression spring 706. When the quick-release structure 7 is under pressure or tension, the telescopic rod 704 will slide in the round hole, and the buffer spring 707 plays a buffering role to absorb and release energy;

[0026] When there is an adjustment requirement (such as adjusting the fence height or angle to adapt to different situations, such as passing through a low space or facilitating medical staff operation, etc.), since the chassis 601 is fixedly connected to both sides of the adjusting plate 508, the chassis 601 is relatively stable. Medical staff move the rotating rod 603 inside the fixing seat 602 through the armrest plate 605, thereby driving the displacement of the armrest plate 605 fixedly connected to the top end. At the same time, the electric telescopic drive rod 608 starts to extend and extends into the inside of the fixed circular seat 607 for overall fixation.

[0027] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be the substitution of part of the structure, device, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept should be covered within the protection scope of the present invention.

Claims

1. A quick-release stretcher with pulleys, comprising a stretcher bottom plate (1), characterized in that: An adjustable stretcher assembly (5) is arranged above the stretcher bottom plate (1), and the adjustable stretcher assembly (5) comprises a rocker (501), the front end of the rocker (501) is fixedly connected to a rotating gear (502), and both sides of the rotating gear (502) are movably connected to a half gear rod (503), the half gear rod (503) and the rotating gear (502) are meshed through a tooth groove, the rear side of the half gear rod (503) away from the rotating gear (502) is movably connected to a movable rod 2 (505), and the top end of the half gear rod (503) away from the rotating gear (502) is fixedly connected to a connecting rod (506). Rod one (506), the half gear rod (503) is located between the movable rod two (505) and the connecting rod one (506), the front end of the connecting rod one (506) is movably connected to the connecting rod two (507), the top end of the connecting rod two (507) is fixedly connected to the movable stretcher plate (509), the end of the movable rod two (505) away from the movable stretcher plate (509) is fixedly connected to the adjustment plate (508), and the symmetrical adjustment plate (508) is fixedly connected to the symmetrical movable rod one (504) on the side close to the rocker (501), and the symmetrical adjustment plate (508) is located above the movable stretcher plate (509).

2. The quick-release stretcher with pulleys according to claim 1, characterized in that: One end of each of the two movable rods (504) away from the adjustment plate (508) is movably connected to a connecting base plate (3), the bottom end of the connecting base plate (3) is fixedly connected to the top end of the stretcher base plate (1), and the bottom end of the stretcher base plate (1) is fixedly connected to a plurality of quick-release structures (7), the bottom ends of the quick-release structures (7) are fixedly connected to a plurality of pulley frames (8), the inside of the pulley frames (8) are movably connected to a plurality of self-locking pulleys (9), the top end of the adjustment plate (508) is fixedly connected to a plurality of safety belt buckles (2), and the tops of the symmetrical safety belt buckles (2) are movably connected to fixing belts (4).

3. The quick-release stretcher with pulleys according to claim 2, characterized in that: The quick-release structure (7) comprises an external quick-release shell (701), the interior of the external quick-release shell (701) is movably connected to the internal quick-release shell (702), the outer side of the external quick-release shell (701) is fixedly connected to a compression spring (706), and the outer side of the compression spring (706) is movably connected to a sliding ring (703), and the inner side of the sliding ring (703) is in contact with the outer side of the external quick-release shell (701).

4. The quick-release stretcher with pulleys according to claim 3, characterized in that: Symmetrical telescopic rods (704) are fixedly connected inside the external quick-release shell (701) and the internal quick-release shell (702), baffles (705) are fixedly connected inside the external quick-release shell (701) and the internal quick-release shell (702), and circular holes are provided on the baffles (705), the telescopic rods (704) are slidably connected inside the circular holes, and buffer springs (707) are fixedly connected at the front ends of the baffles (705), and the buffer springs (707) are located outside the telescopic rods (704), and opposite sides of the telescopic rods (704) are in contact with each other.

5. The quick-release stretcher with pulleys according to claim 4, characterized in that: A plurality of movable fence components (6) are provided on both sides of the adjustment plate (508), and the movable fence components (6) include a base frame (601), and the front end of the base frame (601) is fixedly connected to both sides of the adjustment plate (508).

6. The quick-release stretcher with pulleys according to claim 5, characterized in that: The top of the base frame (601) is fixedly connected to a plurality of fixed seats (602), the interior of the fixed seats (602) is rotatably connected to a plurality of rotating rods (603), one end of the rotating rod (603) away from the fixed seat (602) is movably connected to a movable seat (604), and the top of the movable seat (604) is fixedly connected to an armrest plate (605), and the outer side of the most forward rotating rod (603) away from the rocker (501) is fixedly connected to a connecting frame (606).

7. The quick-release stretcher with pulleys according to claim 6, characterized in that: The top end of the connecting frame (606) is fixedly connected to a fixed round seat (607), the interior of the fixed round seat (607) is movably connected to an electric telescopic driving rod (608), and the top end of the electric telescopic driving rod (608) is fixedly connected to the bottom end of the armrest plate (605).

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