A stretcher special for medical rescue helicopter

Abstract

The utility model relates to medical rescue stretcher technical field, concretely is a kind of medical rescue helicopter special stretcher, including two U-shaped cover, still including fixedly connected in the connecting cloth one of two U-shaped cover side surface, the straight slot hole being opened in U-shaped cover inner wall, the slide bar being movably installed in straight slot hole, the lifting pole being fixedly installed in the end of slide bar, the inside of lifting pole is provided with the reinforcing assembly of lifting stretcher folding part bending strength.

Description

Technical Field

[0001] This utility model relates to the field of medical rescue stretcher technology, specifically a medical rescue helicopter-specific stretcher. Background Technology

[0002] Medical rescue helicopters are an important component of modern emergency medical service systems. Their core mission is to quickly and safely transport the wounded or critically ill in emergencies. As the core medical equipment for carrying patients inside the helicopter cabin, the performance of the stretcher directly affects rescue efficiency and patient safety. For example, Chinese patent CN215584596U discloses a special stretcher for medical rescue helicopters. This patent uses support rods hinged to two sets of C-shaped connecting plates as the skeleton of the stretcher. It is supported by a positioning mechanism consisting of a first connecting belt, a second connecting belt, a C-shaped clamping plate, and a positioning plate, which allows the device to be folded up, reducing the space occupied by the device.

[0003] However, once the stretcher is unfolded and upright to carry the patient, its load-bearing structure is interrupted at the fold. Even with a locking mechanism connecting it, mechanically, the entire stretcher forms a "simply supported beam" model with the two ends as support points and the middle bearing the main weight. The patient's torso is located precisely in the middle of the stretcher, and its own weight combined with the weight of the medical equipment will generate a huge bending moment at this point. This causes the stretcher to bend significantly downward at the fold, which can easily cause secondary injury to the patient. Therefore, we propose a special stretcher for medical rescue helicopters. Utility Model Content

[0004] The purpose of this invention is to provide a special stretcher for medical rescue helicopters to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical rescue helicopter stretcher, comprising two U-shaped sleeves, a connecting cloth I fixedly connected to the sides of the two U-shaped sleeves, a straight groove hole opened in the inner wall of the U-shaped sleeve, a slide rod movably installed in the straight groove hole, a lifting rod fixedly installed at the end of the slide rod, a connecting cloth II fixedly installed on the side of the lifting rod, and a roller set at the bottom end of the lifting rod. The lifting rod is provided with a reinforcing component to enhance the bending strength of the folding part of the stretcher. The reinforcing component includes a limiting hole opened at the end of the lifting rod, limiting grooves opened on the inner walls of both sides of the limiting hole, an insert rod slidably installed inside the limiting hole, a handle fixedly installed at the end of the insert rod, and limiting blocks fixedly installed on the outer walls of both sides of the insert rod.

[0006] Preferably, multiple sets of straight slot holes are provided, located on both sides of the U-shaped sleeve and extending through it from front to back. Four lifting rods are provided, with each lifting rod's front and rear sides connected to the straight slot holes on both sides of the U-shaped sleeve via sliding rods. A connecting rod is slidably connected to the limiting hole of each lifting rod. One end of each connecting rod is connected to one end of the insert rod. The other end of the left connecting rod is connected to an I-beam block, and the other end of the right connecting rod is connected to an I-beam sleeve. An I-beam groove is provided on the inner wall of one end of the I-beam sleeve, and an I-beam head is provided in the I-beam groove and connected to the I-beam block.

[0007] Preferably, the size of the limiting block is adapted to the limiting groove, and the limiting hole is T-shaped, with the thickness of the end cavity of the limiting hole being the same as the thickness of the limiting block.

[0008] Preferably, the size of the I-beam head is adapted to the I-beam groove.

[0009] Preferably, the outer surface of the lifting rod is provided with an adjustment component, the adjustment component includes a U-shaped block slidably mounted on the upper surface of the lifting rod, a connecting cloth is fixedly connected to the side of the U-shaped block, a pin is movably mounted on the top inner wall of the U-shaped block, and a pin hole adapted to the pin is opened on the upper surface of the lifting rod.

[0010] Preferably, multiple sets of the adjusting components and the connecting fabric are provided, and the adjusting components and the connecting fabric are spaced apart.

[0011] Preferably, a second magnetic block is fixedly installed at the end of the I-shaped head, and a first magnetic block is fixedly installed on the inner wall of the end of the I-shaped groove. The magnetic blocks one and two magnetic blocks have opposite magnetic properties on the sides that are close to each other.

[0012] Compared with existing technologies, the beneficial effects of this invention are as follows: By setting up reinforcing components, when the stretcher is unfolded, pushing and rotating the handle can drive the I-beam sleeve to precisely align and lock with the I-beam block, forming a rigid I-beam-shaped support structure at the fold in the middle of the stretcher. This structure can significantly improve the overall bending strength of the stretcher, ensuring that the middle of the stretcher remains flat and stable even when carrying a patient, fundamentally avoiding the risk of secondary injury to the patient's waist due to stretcher sagging, and improving the safety and reliability of medical rescue.

[0013] Secondly, the magnetic block two at the end of the I-shaped head and the magnetic block one inside the I-shaped groove attract each other due to their opposite magnetism, ensuring a more stable connection after the stretcher is unfolded and spliced, thus improving the safety of the stretcher in use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall folded state of this utility model;

[0015] Figure 2This is a schematic diagram of the overall unfolded state of this utility model;

[0016] Figure 3 This is an exploded view of the present invention;

[0017] Figure 4 This is a cross-sectional view of the lifting rod of this utility model;

[0018] Figure 5 This is a cross-sectional view of the lifting rod end of this utility model;

[0019] Figure 6 This is a schematic diagram of the I-shaped sleeve and the I-shaped head of this utility model in a separated state;

[0020] Figure 7 This is a schematic diagram of the I-beam sleeve structure of this utility model.

[0021] The components represented by each number in the attached diagram are listed below: 1. U-shaped sleeve; 2. Connecting cloth one; 3. Straight groove hole; 4. Slide rod; 5. Lifting rod; 6. Connecting cloth two; 7. Roller; 8. U-shaped block; 9. Connecting cloth three; 10. Pin; 11. Pin hole; 12. Limiting hole; 13. Insert rod; 14. Limiting block; 15. Handle; 16. Limiting groove; 17. Connecting rod; 18. I-shaped sleeve; 19. I-shaped groove; 20. Magnetic block one; 21. I-shaped block; 22. I-shaped head; 23. Magnetic block two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a technical solution: such as Figures 1-7 The medical rescue helicopter stretcher shown includes two U-shaped sleeves 1, a connecting cloth 2 fixedly connected to the sides of the two U-shaped sleeves 1, a straight groove hole 3 opened in the inner wall of the U-shaped sleeve 1, a slide rod 4 movably installed in the straight groove hole 3, a lifting rod 5 fixedly installed at the end of the slide rod 4, a connecting cloth 6 fixedly installed on the side of the lifting rod 5, and a roller 7 set at the bottom of the lifting rod 5.

[0024] Connecting fabric 1 (2), connecting fabric 2 (6), and connecting fabric 3 (9) are all made of flexible, tensile-resistant, and skin-friendly fabric to enhance the protection of the patient during use of the stretcher, while avoiding excessive rigidity that could cause injury or discomfort. The straight groove 3 allows the sliding rod 4 to rotate within the straight groove 3, enabling the lifting rod 5 to retract or expand relative to the U-shaped sleeve 1. It also allows the sliding rod 4 to slide vertically. Therefore, the sliding rod 4 ensures that there is no movement interference between the lifting rod 5 and the U-shaped sleeve 1 when the lifting rod 5 rotates, ensuring the stable operation of the device. Furthermore, when the lifting rod 5 rotates to the horizontal position, the two sets of lifting rods 5 on both sides of the U-shaped sleeve 1 are connected by the I-shaped sleeve 18 and the I-shaped block 21, preventing the lifting rod 5 from falling or bending due to gravity, which would affect the stability of the entire stretcher when it is unfolded and ensure its usability.

[0025] The lifting rod 5 is equipped with a reinforcing component to enhance the bending strength of the stretcher folding section. The reinforcing component includes a limiting hole 12 at the end of the lifting rod 5, limiting grooves 16 on both sides of the inner wall of the limiting hole 12, a plug rod 13 is slidably installed inside the limiting hole 12, a handle 15 is fixedly installed at the end of the plug rod 13, and limiting blocks 14 are fixedly installed on both sides of the outer wall of the plug rod 13.

[0026] The insertion rod 13 is movably engaged with the limiting hole 12, so the insertion rod 13 can slide and rotate within the limiting hole 12. The handle 15 also makes it convenient for the user to lift the stretcher for transport. Furthermore, the limiting block 14 and the limiting groove 16 prevent the insertion rod 13 from detaching from the inside of the lifting rod 5, ensuring the normal use of the device and preventing the stretcher from falling off or falling apart when the user is carrying the patient.

[0027] Multiple sets of straight slot holes 3 are provided, located on both sides of the U-shaped sleeve 1 and extending through it. There are four lifting rods 5. The front and rear sides of each lifting rod 5 are connected to the straight slot holes 3 on both sides of each U-shaped sleeve 1 by sliding rods 4. Each lifting rod 5 is slidably connected to a connecting rod 17 in the limiting hole 12. One end of each connecting rod 17 is connected to one end of the insert rod 13. The other end of the left connecting rod 17 is connected to an I-shaped block 21, and the other end of the right connecting rod 17 is connected to an I-shaped sleeve 18. An I-shaped groove 19 is provided on the inner wall of one end of the I-shaped sleeve 18. An I-shaped head 22 is provided in the I-shaped groove 19 and connected to the I-shaped block 21.

[0028] The lifting rods 5 on both sides of the U-shaped sleeve 1 allow the stretcher to be folded and stored, reducing the space occupied by the stretcher on the helicopter and facilitating its transportation. Upon arrival at the destination, it can be quickly unfolded for operation, improving the overall ease of use of the device. The corresponding arrangement of the I-shaped sleeve 18 and I-shaped block 21 on both sides of the U-shaped sleeve 1 allows for quick docking and installation, improving the operating efficiency of the device while reducing the difficulty of operation. The docking and installation capability of the I-shaped sleeve 18 and I-shaped block 21 also provides a certain degree of reinforcement to the connection of the foldable lifting rod 5, preventing excessive bending and affecting the normal and safe use of the equipment.

[0029] The size of the limiting block 14 is adapted to the limiting groove 16, and the limiting hole 12 is set in a T shape. The thickness of the end cavity of the limiting hole 12 is the same as the thickness of the limiting block 14.

[0030] The T-shaped limiting hole 12 allows the insertion rod 13 to be inserted into the limiting hole 12. Only by rotating the handle 15 by a certain angle can the limiting block 14 rotate away from the limiting groove 16, so that the insertion rod 13 and the handle 15 can maintain a relatively fixed position with respect to the end of the lifting rod 5. This prevents the user from slipping or falling when holding the handle 15. Even when facing a certain angle of movement, the overall stability of the stretcher can be guaranteed, avoiding secondary injury to the patient.

[0031] The size of the I-shaped head 22 is compatible with the I-shaped slot 19.

[0032] To ensure that the I-shaped head 22 can be accurately inserted into the I-shaped groove 19, and to ensure that the connection between the two sets of lifting rods 5 in the U-shaped sleeve 1 can be sufficiently reinforced, so as to avoid excessive bending due to gravity during patient lying down or stretcher transportation, which could cause stretcher damage or secondary injury to the patient due to excessive bending angle.

[0033] Please see Figures 2-3 The outer surface of the lifting rod 5 is provided with an adjustment component, which includes a U-shaped block 8 that is slidably installed on the upper surface of the lifting rod 5. A connecting cloth 9 is fixedly connected to the side of the U-shaped block 8. A pin 10 is movably installed on the inner wall of the top of the U-shaped block 8. A pin hole 11 that matches the pin 10 is opened on the upper surface of the lifting rod 5.

[0034] The pin holes 11 are set in multiple sets, and the multiple sets of pin holes 11 are arranged in a linear array on the upper surface of the lifting rod 5. This allows the pin 10 to have multiple positions that can be adjusted to change the position of the U-shaped block 8 on the lifting rod 5. This makes it convenient for medical staff to adjust the relative position of the connecting cloth 9 between the two lifting rods 5 according to the patient's different body size or injury condition. This improves the positioning and protection effect for the patient while ensuring the patient's comfort and avoids further injury to the patient during transportation.

[0035] Multiple sets of adjustment components and connecting cloth 6 are provided, and the adjustment components and connecting cloth 6 are spaced apart.

[0036] The multiple adjustment components allow for more flexible adjustment of some support positions on the stretcher, thus improving the flexibility of the device during use.

[0037] A magnetic block 23 is fixedly installed at the end of the I-shaped head 22, and a magnetic block 20 is fixedly installed on the inner wall of the end of the I-shaped groove 19. The magnetic blocks 20 and 23 are opposite in magnetism on the side that are close to each other.

[0038] Magnetic block 23 and magnetic block 20 are positioned relative to each other when the I-shaped head 22 and the I-shaped groove 19 are connected. Since their magnetic properties are opposite, when the two sets of lifting rods 5 are rotated to the horizontal, the connection between the I-shaped sleeve 18 and the I-shaped block 21 at the connection point is more stable, ensuring the anti-bending capacity of the connection point of the stretcher that can be rotated and folded for storage, and ensuring the safety of the stretcher in use.

[0039] Working principle: The operator first unfolds the four sets of lifting rods 5, which are in a folded state, and rotates them around the sliding rod 4 in the straight slot 3 until both lifting rods 5 on both sides are rotated to a horizontal state. At this time, the I-shaped sleeve 18 at the end of the left lifting rod 5 of the U-shaped sleeve 1 and the I-shaped block 21 at the end of the right lifting rod 5 approach each other. The operator pushes the handle 15, causing the insertion rod 13 to slide in the limiting hole 12. Through the connecting rod 17, the I-shaped sleeve 18 moves towards the I-shaped block 21. When the I-shaped head 22 at the front end of the I-shaped block 21 aligns with the I-shaped groove 19 at the front end of the I-shaped sleeve 18, the operator continues to push the handle. 15. Insert the I-shaped head 22 completely into the I-shaped groove 19. During this process, the magnetic block 23 at the end of the I-shaped head 22 and the magnetic block 20 inside the I-shaped groove 19 attract each other due to their opposite magnetism, ensuring a stable connection. Then, rotate the handle 15 to drive the insertion rod 13 and its limiting block 14 to rotate in the limiting hole 12, so that the limiting block 14 is engaged in the limiting groove 16, thereby locking the position of the insertion rod 13 and preventing it from retracting. At this time, the I-shaped connection structure forms a rigid support at the fold in the middle of the stretcher, effectively enhancing the bending strength at this point and preventing the center of the stretcher from sinking when bearing weight.

[0040] Next, the operator can pull out the pin 10 according to the patient's body shape or injury, so that the U-shaped block 8 can slide along the upper surface of the lifting rod 5. After moving the U-shaped block 8 to a suitable position, the pin 10 is inserted into the aligned pin hole 11 to fix the U-shaped block 8 and its connected connecting cloth 9. By adjusting the positions of multiple sets of U-shaped blocks 8 and connecting cloth 6, the distribution of support points on the stretcher support surface can be changed to better adapt to and fix the patient.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical rescue helicopter stretcher, comprising two U-shaped sleeves (1), and further comprising a connecting cloth first (2) fixedly connected to the sides of the two U-shaped sleeves (1), a straight groove hole (3) opened in the inner wall of the U-shaped sleeve (1), a slide rod (4) movably installed in the straight groove hole (3), a lifting rod (5) fixedly installed at the end of the slide rod (4), a connecting cloth second (6) fixedly installed on the side of the lifting rod (5), and a roller (7) provided at the bottom end of the lifting rod (5), characterized in that: The lifting rod (5) is provided with a reinforcing component to enhance the bending strength of the stretcher folding part. The reinforcing component includes a limiting hole (12) opened at the end of the lifting rod (5). Limiting grooves (16) are opened on the inner walls of both sides of the limiting hole (12). An insert rod (13) is slidably installed inside the limiting hole (12). A handle (15) is fixedly installed at the end of the insert rod (13). Limiting blocks (14) are fixedly installed on the outer walls of both sides of the insert rod (13).

2. The medical rescue helicopter stretcher according to claim 1, characterized in that: The straight slot (3) is provided in multiple sets and is located on both sides of the U-shaped sleeve (1) and passes through it from front to back. The number of lifting rods (5) is four. The front and back sides of each lifting rod (5) are connected to the straight slot (3) on both sides of each U-shaped sleeve (1) by sliding rods (4). Each lifting rod (5) is slidably connected to a connecting rod (17) in the limiting hole (12). One end of each connecting rod (17) is connected to one end of the insert rod (13). The other end of the connecting rod (17) on the left is connected to an I-shaped block (21), and the other end of the connecting rod (17) on the right is connected to an I-shaped sleeve (18). An I-shaped groove (19) is provided on the inner wall of one end of the I-shaped sleeve (18). An I-shaped head (22) is provided in the I-shaped groove (19) and is connected to the I-shaped block (21).

3. The medical rescue helicopter stretcher according to claim 1, characterized in that: The size of the limiting block (14) is adapted to the limiting groove (16), and the limiting hole (12) is set in a T shape. The thickness of the end cavity of the limiting hole (12) is the same as the thickness of the limiting block (14).

4. A medical rescue helicopter stretcher according to claim 2, characterized in that: The size of the I-shaped head (22) is adapted to the I-shaped groove (19).

5. A medical rescue helicopter stretcher according to claim 1, characterized in that: An adjustment assembly is provided on the outer surface of the lifting rod (5). The adjustment assembly includes a U-shaped block (8) that is slidably installed on the upper surface of the lifting rod (5). A connecting cloth (9) is fixedly connected to the side of the U-shaped block (8). A pin (10) is movably installed on the inner wall of the top of the U-shaped block (8). A pin hole (11) that matches the pin (10) is opened on the upper surface of the lifting rod (5).

6. A medical rescue helicopter stretcher according to claim 5, characterized in that: The number of the adjustment components and the connecting cloth two (6) are both set in multiple sets, and the adjustment components and the connecting cloth two (6) are set at intervals.

7. A medical rescue helicopter stretcher according to claim 2, characterized in that: A magnetic block two (23) is fixedly installed at the end of the I-shaped head (22), and a magnetic block one (20) is fixedly installed on the inner wall of the end of the I-shaped groove (19). The magnetic blocks one (20) and the magnetic blocks two (23) are opposite in magnetism on the side that are close to each other.

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