Field first aid device and method of use thereof

Abstract

The present invention relates to the field of first aid devices, specifically a field first aid device and a method for using the same, comprising a splint, a support sleeve fixedly connected to the surface of the splint, a slide rod symmetrically fixedly connected between the two sides of the inner wall of the support sleeve, a support plate slidably connected between the two slide rods, a compression spring movably sleeved on the surface of the slide rod that cooperates with the support plate, and grooves are provided in the middle of the support plate and the middle of the splint. The field first aid device is composed of a transmission mechanism, a coating mechanism, and a winding mechanism; by using the support plate, the transmission mechanism, the winding mechanism, and other components, the splint and the support plate are clamped into the position of the arm, and then the support plate is pulled to move on the surface of the slide rod. During the process of the support plate resetting toward the splint, the transmission mechanism cooperates with the winding mechanism to automatically wrap the cable tie on the cable tie wheel around the wound position of the arm, and the cable tie can be operated with one hand, thereby improving the convenience of use.

Description

Technical Field

[0001] The present invention relates to the field of first aid devices, in particular to a field first aid device and a use method thereof. Background Art

[0002] Currently, first aid in wild environments, such as disaster relief in natural disasters, outdoor adventure activities, or trauma treatment in war environments, requires hemostasis, disinfection, and bandaging of the wound site before sending the patient to the hospital. Usually, during wild first aid, a portable first aid device is required to perform preliminary bandaging on the wound.

[0003] An existing patent (publication number: CN114831806A) discloses a portable automated hemostatic, disinfecting, and bandaging device for field first aid, comprising a fixed main body, a bottom compartment, a pneumatic liquid storage tube, an annular power mechanism, and a bandaging guide wheel assembly. During the implementation of this solution, the inventors discovered that the following issues in the prior art had not been adequately addressed: 1. Some existing field first aid devices require two hands for operation. This makes single-handed operation difficult for a single person who sustains a hand injury during a field expedition, hindering ease of use. Summary of the Invention

[0004] The purpose of the present invention is to provide a field first aid device and a method of use thereof, so as to solve the problems raised in the above-mentioned background technology: 1. Some existing field first aid devices are difficult to operate with one hand during use. In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: A field first aid device, comprising a splint, the surface of the splint is fixedly connected to a support sleeve, a sliding rod is symmetrically fixedly connected between the two sides of the inner wall of the support sleeve, a support plate is slidably connected between the two sliding rods, the surface of the sliding rod is movably sleeved with a compression spring that cooperates with the support plate, the middle part of the support plate and the middle part of the splint are both provided with a groove, a transmission mechanism is movably connected between the surface of the support plate and the side wall of the support sleeve, the surface of the support plate is provided with an arc-shaped guide groove, and the inside of the arc-shaped guide groove is movably connected with a coating mechanism that cooperates with the transmission mechanism;

[0005] The surface of the support plate and the surface of the clamping plate are movably connected with a winding mechanism that cooperates with the transmission mechanism. The clamping plate is symmetrically provided with a groove on the side away from the support plate. The inside of the groove is symmetrically fixedly connected with a spring pressure rod. The inner wall of the groove is fixedly connected with a pad. One end of the pad is hinged with an arc-shaped clamping block, and the surface of the arc-shaped clamping block overlaps with the end of the corresponding spring pressure rod.

[0006] Preferably, the transmission mechanism includes a rectangular groove, which is opened on the surface of the support plate, and a transmission rack is movably inserted into the interior of the rectangular groove, and the transmission rack is fixedly connected between two sides of the inner wall of the support sleeve;

[0007] One side of the support plate is symmetrically connected to a slave synchronous wheel rod for rotation, the surface of the support plate is rotatably connected to a bevel gear tube, the inner ring of the bevel gear tube is fixedly connected to a one-way bearing, the inner ring of the one-way bearing is fixedly connected to a master synchronous wheel rod, and a synchronous belt is movably connected between the master synchronous wheel rod and the surfaces of the two slave synchronous wheel rods;

[0008] The surface of the support plate is fixedly connected to a protective cylinder that cooperates with the bevel gear tube, and the surface of the protective cylinder is rotatably connected to a transmission gear rod that cooperates with the bevel gear tube. The end of the transmission gear rod away from the protective cylinder is engaged with the surface of the coating mechanism, and the middle part of the transmission gear rod is fixedly sleeved with a circular gear, and the surface of the circular gear is engaged with the surface of the transmission rack.

[0009] Preferably, a circular hole is opened on the surface of the support plate, a connecting bearing is fixedly sleeved on the surface of the bevel gear tube, and the outer ring of the connecting bearing is fixedly connected to the inner wall of the circular hole opened on the surface of the support plate.

[0010] Preferably, the transmission gear rod consists of a cross bar, a transmission bevel gear and a synchronous gear, and the transmission bevel gear and the synchronous gear are respectively arranged at both ends of the cross bar, the surface of the transmission bevel gear is meshed with the surface of the bevel gear tube, and the surface of the synchronous gear is meshed with the surface of the coating mechanism.

[0011] Preferably, the smearing mechanism includes an end face gear, the end face gear is rotatably connected to the surface of the support plate, the surface of the end face gear is meshed with one end of the transmission mechanism, and the outer ring of the end face gear is fixedly connected to an arc-shaped rack;

[0012] The interior of the arc guide groove is slidingly connected to a guide block, the surface of the support plate is rotatably connected to an adjusting gear rod that cooperates with the arc rack, a torsion spring is fixedly connected between the end of the adjusting gear rod and the inner wall of the support plate, the surface of the adjusting gear rod is fixedly connected to the adjusting plate, the surface of the adjusting plate is provided with an adjusting groove, and the adjusting plate is slidably connected to the surface of the guide block through the adjusting groove, and the end of the guide block away from the arc guide groove is fixedly connected to the connecting block, the surface of the connecting block is fixedly connected to a spring rod, and one end of the spring rod is fixedly connected to the arc applicator plate.

[0013] Preferably, the winding mechanism includes four guide wheels, the four guide wheels are equidistantly rotatably connected to the surface of the support plate, a winding ring that cooperates with the transmission mechanism is movably connected between the four guide wheels, and the surface of the winding ring is rotatably connected to the cable tie wheel;

[0014] The surface of the support plate is symmetrically provided with slots, the surface of the splint is symmetrically fixedly connected with arc-shaped blades, the two arc-shaped blades correspond one to one with the two slots, the surface of the splint is symmetrically rotatably connected with a wire pulling wheel, the surface of the wire pulling wheel is wrapped with a pull rope, and one end of the pull rope is fixedly connected to the surface of the support plate.

[0015] Preferably, the two arc-shaped clamping blocks on the side wall of the clamping plate are arranged in a symmetrical manner, and the surfaces of the arc-shaped clamping blocks are provided with anti-slip teeth;

[0016] The two spring pressure rods are arranged in opposite directions.

[0017] A method for using a field first aid device comprises the following steps:

[0018] S1. When in use, adjust the open end of the winding ring to the groove end position of the support plate, then the operator holds the support sleeve with one hand and clamps it into the arm position through the splint. With the cooperation of two oppositely set spring pressure rods, the two arc-shaped clamping blocks on the splint are clamped at the arm position for support, and then the sterilized cotton is placed on the surface of the arc-shaped applicator plate so that the wound on the arm is in the direction of the arc-shaped applicator plate;

[0019] S2, then pull the support plate on the splint to slide between the two sliding rods, and the moving distance of the support plate is adjusted according to the length of the patient's wound. When the support plate is released, the compression spring presses the support plate to reset and move in the direction of the splint. At this time, the transmission gear rod is meshed with the top of the transmission rack through the circular gear, so that the two ends of the transmission gear rod are respectively meshed with the end gear and the bevel gear tube for transmission. Then the bevel gear tube drives the main synchronous wheel rod and the synchronous belt to run through the one-way bearing. Under the cooperation of the slave synchronous wheel rod and the synchronous belt, the synchronous belt drives the winding ring to rotate on the side wall of the support plate. When the winding ring rotates and moves with the support plate in the direction of the splint, the cable tie on the cable tie wheel is automatically wrapped around the arm position;

[0020] S3. While the cable tie is being wound, the rotating end face gear brings the arc-shaped rack into engagement with the adjusting gear rod in stages, causing the adjusting gear rod to slide along the track of the arc-shaped guide groove with the adjusting plate and the guide block, and the connecting block on the guide block brings the arc-shaped applicator plate to apply the medicine to the wound. When the arc-shaped rack is disengaged from the adjusting gear rod, the torsion spring brings the adjusting plate, the guide block and the arc-shaped applicator plate to reset, thereby causing the arc-shaped applicator plate to reciprocate along the track of the arc-shaped guide groove to apply the medicine to the wound.

[0021] S4. Finally, when the circular gear and the transmission rack are about to be disengaged, the support plate gradually approaches the side wall of the splint. At this time, the winding ring gradually stops rotating, and the arc-shaped blade on the surface of the splint is inserted into the slot. Due to the rotation of the cable tie wheel, the cable tie on the cable tie wheel contacts the arc-shaped blade and cuts off by itself. Finally, the cable tie is adhered to the arm position with medical tape to complete the first aid bundling.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the present invention, through the coordinated use of components such as the support plate, the transmission mechanism and the winding mechanism, after the splint and the support plate are clamped into the arm position, the support plate is pulled to move on the surface of the slide rod. During the process of the support plate resetting toward the splint, the transmission mechanism and the winding mechanism cooperate to make the cable tie on the cable tie wheel automatically wrap around the wound position of the arm, which can be operated with one hand, thereby improving the convenience of use.

[0024] In the present invention, through the coordinated use of components such as the support plate, the transmission mechanism and the application mechanism, when the support plate is reset toward the splint, the arc-shaped applicator plate moves back and forth along the arc-shaped guide groove track under the cooperation of the transmission mechanism and the application mechanism, and disinfectant is applied to the wound position of the arm, avoiding the operation of applying disinfectant separately, thereby improving the efficiency of first aid bandaging.

[0025] In the present invention, by cooperating with components such as the support plate, the slide rod and the transmission mechanism, the winding ring and the tie wheel are used to perform the bandaging operation as the support plate moves, so that the patient can control the sliding distance of the support plate on the slide rod according to the length of the wound and freely adjust the bandaging length. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A side view showing the positions of the splint and support plate of the present invention;

[0027] Figure 2 A side cross-sectional view of a local position of the support plate and the support sleeve of the present invention;

[0028] Figure 3 For the present invention Figure 2 A magnified view of the structure at center A;

[0029] Figure 4 A side sectional view of a partial position of the support sleeve and the splint of the present invention;

[0030] Figure 5 For the present invention Figure 4 A magnified view of the structure at B in the middle;

[0031] Figure 6 A cross-sectional view of a bevel gear tube and a one-way bearing at a local position of the present invention;

[0032] Figure 7 A cross-sectional view of a local portion of the support plate of the present invention;

[0033] Figure 8 For the present invention Figure 7 A magnified view of the structure at center C;

[0034] Figure 9 It is a side sectional view of a local position of the support sleeve and the transmission rack of the present invention;

[0035] Figure 10 It is a three-dimensional diagram of the transmission gear rod and the circular gear of the present invention.

[0036] In the figure: 1, clamping plate; 2, support sleeve; 3, slide rod; 4, support plate; 5, compression spring; 6, groove; 7, transmission mechanism; 701, rectangular groove; 702, transmission rack; 703, slave synchronous wheel rod; 704, bevel gear tube; 705, one-way bearing; 706, master synchronous wheel rod; 707, synchronous belt; 708, protective cylinder; 709, transmission gear rod; 710, circular gear; 8, arc guide groove; 9, smearing mechanism; 901, end gear; 902, Arc-shaped rack; 903, guide block; 904, adjusting gear rod; 905, torsion spring; 906, adjusting plate; 907, adjusting slot; 908, connecting block; 909, spring rod; 910, arc-shaped applicator plate; 10, winding mechanism; 101, guide wheel; 102, winding ring; 103, cable tie wheel; 104, slot; 105, arc-shaped blade; 106, pulling wheel; 107, pulling rope; 11, sinking trough; 12, spring pressure rod; 13, pad; 14, arc-shaped clamping block. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] See also Figures 1 to 10The present invention provides a technical solution: a field first aid device, comprising a splint 1, a support sleeve 2 being fixedly connected to the surface of the splint 1, a slide rod 3 being symmetrically fixedly connected between the two sides of the inner wall of the support sleeve 2, a support plate 4 being slidably connected between the two slide rods 3, a compression spring 5 cooperating with the support plate 4 being movably sleeved on the surface of the slide rod 3, a groove 6 being provided in the middle of the support plate 4 and the middle of the splint 1, a transmission mechanism 7 being movably connected between the surface of the support plate 4 and the side wall of the support sleeve 2, an arc-shaped guide groove 8 being provided on the surface of the support plate 4, a coating mechanism 9 cooperating with the transmission mechanism 7 being movably connected inside the arc-shaped guide groove 8. It should be noted that: sliding holes are symmetrically provided on the surface of the support plate 4, and the support plate 4 is slidably connected to the surface of the slide rod 3 through the sliding holes; one end of the compression spring 5 overlaps the inner wall of the support sleeve 2, and the other end of the compression spring 5 overlaps the surface of the support plate 4; the support plate 4 and the splint 1 can be clamped on the arm through the groove 6.

[0039] A winding mechanism 10 that cooperates with the transmission mechanism 7 is movably connected between the surface of the support plate 4 and the surface of the splint 1. A sinking groove 11 is symmetrically opened on the side of the splint 1 away from the support plate 4. A spring pressure rod 12 is symmetrically fixedly connected to the inside of the sinking groove 11. A pad 13 is fixedly connected to the inner wall of the sinking groove 11. An arc-shaped clamping block 14 is hinged at one end of the pad 13. The surface of the arc-shaped clamping block 14 overlaps with the end of the corresponding spring pressure rod 12.

[0040] In this embodiment, Figures 1 to 10 As shown, the transmission mechanism 7 includes a rectangular groove 701 formed in the surface of the support plate 4. A transmission rack 702 is movably inserted into the groove 701 and fixedly connected between two sides of the inner wall of the support sleeve 2. It should be noted that the transmission rack 702 is not provided with teeth near the clamping plate 1 to ensure that the circular gear 710 can be disengaged from the transmission rack 702 when it is about to move to the side wall of the clamping plate 1.

[0041] A slave synchronous wheel rod 703 is symmetrically rotatably connected to one side of the support plate 4. A bevel gear tube 704 is rotatably connected to the surface of the support plate 4. A one-way bearing 705 is fixedly connected to the inner ring of the bevel gear tube 704. The inner ring of the one-way bearing 705 is fixedly connected to the master synchronous wheel rod 706. A timing belt 707 is movably connected between the master synchronous wheel rod 706 and the surfaces of the two slave synchronous wheel rods 703. It should be noted that the one-way bearing 705 allows the bevel gear tube 704 to rotate with the master synchronous wheel rod 706 during forward rotation, but cannot rotate with the master synchronous wheel rod 706 during reverse rotation. During rotation, the master synchronous wheel rod 706 cooperates with the timing belt 707 and the slave synchronous wheel rod 703 to achieve a transmission effect.

[0042] A protective sleeve 708, which mates with the bevel gear tube 704, is fixedly connected to the surface of the support plate 4. A transmission gear rod 709, which mates with the bevel gear tube 704, is rotatably connected to the surface of the protective sleeve 708. The end of the transmission gear rod 709, which is away from the protective sleeve 708, meshes with the surface of the smearing mechanism 9. A circular gear 710 is fixedly sleeved on the middle portion of the transmission gear rod 709, and the surface of the circular gear 710 meshes with the surface of the transmission rack 702. It should be noted that a support bearing is fixedly connected to the surface of the protective sleeve 708, and the transmission gear rod 709 is fixedly connected to the inner ring of the support bearing, ensuring the rotational stability of the transmission gear rod 709.

[0043] In this embodiment, Figures 1 to 10 As shown, the surface of the support plate 4 is provided with a circular hole, and a connecting bearing is fixedly sleeved on the surface of the bevel gear tube 704. The outer ring of the connecting bearing is fixedly connected to the inner wall of the circular hole provided on the surface of the support plate. It should be noted that the provision of the connecting bearing ensures the stability of the bevel gear tube 704 during use.

[0044] In this embodiment, Figures 1 to 10 As shown, the transmission gear rod 709 is composed of a crossbar, a transmission bevel gear and a synchronization gear. The transmission bevel gear and the synchronization gear are respectively arranged at both ends of the crossbar. The surface of the transmission bevel gear meshes with the surface of the bevel gear tube 704, and the surface of the synchronization gear meshes with the surface of the coating mechanism 9. It should be noted that the synchronization gear meshes with the surface of the end gear 901 for transmission.

[0045] In this embodiment, Figures 1 to 10 As shown, the smearing mechanism 9 includes an end gear 901, which is rotatably connected to the surface of the support plate 4. The surface of the end gear 901 meshes with one end of the transmission mechanism 7, and the outer ring of the end gear 901 is fixedly connected to an arc-shaped rack 902. It should be noted that the surface of the end gear 901 meshes with the end of the transmission gear rod 709 for transmission.

[0046] The interior of the arc-shaped guide groove 8 is slidably connected to a guide block 903, and the surface of the support plate 4 is rotatably connected to an adjusting gear rod 904 that cooperates with the arc-shaped rack 902. A torsion spring 905 is fixedly connected between the end of the adjusting gear rod 904 and the inner wall of the support plate 4. The surface of the adjusting gear rod 904 is fixedly connected to an adjusting plate 906, and an adjusting groove 907 is provided on the surface of the adjusting plate 906. The adjusting plate 906 is slidably connected to the surface of the guide block 903 through the adjusting groove 907. The end of the guide block 903 away from the arc-shaped guide groove 8 is fixedly connected to a connecting block 908, and the surface of the connecting block 908 is fixedly connected to a spring rod 909, and one end of the spring rod 909 is fixedly connected to a curved applicator plate 910. It should be noted that: the cross-section of the arc-shaped guide groove 8 is set to T-shaped, and the inner wall of the arc-shaped guide groove 8 is symmetrically provided with positioning grooves. The surface of the guide block 903 is symmetrically fixed with positioning pins, and the positioning pins are slidably connected to the inside of the corresponding positioning groove. The positioning groove cooperates with the positioning pin to enable the guide block 903 to slide along the track of the arc-shaped guide groove 8, and avoid the guide block 903 from rotating inside the arc-shaped guide groove 8; the surface of the arc-shaped applicator plate 910 is provided with Velcro, which is convenient for sticking disinfectant cotton; when the arc-shaped rack 902 rotates with the end face gear 901, the arc-shaped rack 902 and the adjustment gear rod 904 are engaged and transmitted in stages, so that the adjustment plate 906 slides along the track of the arc-shaped guide groove 8 with the guide block 903 through the adjustment groove 907. At this time, the arc-shaped applicator plate 910 applies the wound position.

[0047] In this embodiment, Figures 1 to 10 As shown, the winding mechanism 10 includes a guide wheel 101, which is provided with four guide wheels 101. The four guide wheels 101 are equidistantly rotatably connected to the surface of the support plate 4. A winding ring 102 that cooperates with the transmission mechanism 7 is movably connected between the four guide wheels 101, and a cable tie wheel 103 is rotatably connected to the surface of the winding ring 102. The two guide wheels 101 are arranged in a group, and the two groups of guide wheels 101 are symmetrically arranged on both sides of the groove 6; when the two arc-shaped clamping blocks 14 on the splint 1 are clamped in the arm position, the positioning support of the arm is completed. At this time, the operator applies one end of the strap to the patient's arm position through medical tape, and then, during the movement of the support plate 4 toward the splint 1, the synchronous belt 707 on the transmission mechanism 7 drives the winding ring 102 to rotate, and the rotating winding ring 102 drives the strap wheel 103 on the surface to wrap around and rotate along the patient's arm, so that the strap on the strap wheel 103 is tied to the patient's arm position. During this process, the strap wheel 103 slowly moves toward the splint 1 along the support plate 4, so that the strap can be evenly tied to the arm surface.

[0048] Slots 104 are symmetrically opened on the surface of the support plate 4, and arc-shaped blades 105 are symmetrically fixedly connected to the surface of the splint 1. The two arc-shaped blades 105 correspond one to one with the two slots 104. The surface of the splint 1 is symmetrically rotated and connected to a pulling wheel 106. A pull rope 107 is wrapped around the surface of the pulling wheel 106, and one end of the pull rope 107 is fixedly connected to the surface of the support plate 4. It should be noted that: the surface of the splint 1 is symmetrically provided with mounting grooves, and the two pulling wheels 106 are respectively rotatably connected to the inside of the two mounting grooves, and a coil spring is fixedly connected between the end of the pulling wheel 106 and the inner wall of the mounting groove. Through the cooperation of the coil spring, the pulling wheel 106 and the pull rope 107, the auxiliary support plate 4 is reset toward the splint 1; when the support plate 4 moves toward the splint 1, when the arc-shaped blade 105 is inserted into the slot 104, the circular gear 710 gradually releases the engagement with the transmission rack 702. At this time, the cable tie that rotates with the winding ring 102 is cut off by the arc-shaped blade 105 and stops rotating, and a damping bearing is provided between the cable tie wheel 103 and the winding ring 102 to ensure that the cable tie on the cable tie wheel 103 can be stably cut off by the arc-shaped blade 105.

[0049] In this embodiment, Figures 1 to 10 As shown, the two arc-shaped clamping blocks 14 on the side wall of the clamping plate 1 are arranged in a symmetrical manner, and the surfaces of the arc-shaped clamping blocks 14 are provided with anti-slip teeth.

[0050] The two spring pressure rods 12 are arranged in opposite directions. It should be noted that since the two adjacent spring pressure rods 12 are arranged in opposite directions, the arc-shaped clamping block 14 is tilted when the two spring pressure rods 12 press against it. When the splint 1 is clamped into the arm position, the two oppositely arranged arc-shaped clamping blocks 14 can clamp the arm. The width of the arc-shaped clamping blocks 14 is set according to actual use to ensure the stability of the clamping.

[0051] In this embodiment, Figures 1 to 10 As shown, a method for using a field first aid device includes the following steps:

[0052] S1. When in use, adjust the open end of the winding ring 102 to the end position of the groove 6 of the support plate 4. Then, the operator holds the support sleeve 2 in one hand and clamps it into the arm position through the splint 1. With the cooperation of two oppositely arranged spring pressure rods 12, the two arc-shaped clamping blocks 14 on the splint 1 are clamped at the arm position for support. Then, the sterilized cotton is placed on the surface of the arc-shaped applicator plate 910 so that the wound on the arm is in the direction of the arc-shaped applicator plate 910.

[0053] After the arm is lifted up, the two ends of the gear 709 are engaged with the gear 901 and the bevel gear tube 704, and then the bevel gear tube 704 drives the main synchronous wheel rod 706 and the synchronous belt 707 through the one-way bearing 705. Under the cooperation of the synchronous wheel rod 703 and the synchronous belt 707, the synchronous belt 707 drives the winding ring 102 to rotate on the side wall of the support plate 4. When the winding ring 102 rotates and moves with the support plate 4 toward the splint 1, the strap on the strap wheel 103 is automatically wound around the arm position.

[0054] S3. While the cable tie is being wound, when the support plate 4 moves toward the splint 1, the arc-shaped applicator plate 910 will be moved synchronously with it. At the same time, the circular gear 710 is meshed with the transmission rack 702 to drive the transmission gear rod 709 to rotate, so that the transmission gear rod 709 is meshed with the end gear 901 for transmission. The rotating end gear 901 brings the arc-shaped rack 902 to mesh with the adjusting gear rod 904 in stages, so that the adjusting gear rod 904 brings the adjusting plate 906 and the guide block 903 to slide along the track of the arc-shaped guide groove 8, and the connecting block 908 on the guide block 903 brings the arc-shaped applicator plate 910 to apply the wound position. When the arc-shaped rack 902 is released from meshing with the adjusting gear rod 904, the torsion spring 905 brings the adjusting plate 906, the guide block 903 and the arc-shaped applicator plate 910 to reset and move, so that the arc-shaped applicator plate 910 moves back and forth along the track of the arc-shaped guide groove 8 to apply the wound;

[0055] S4. Finally, when the circular gear 710 and the transmission rack 702 are about to be disengaged, the support plate 4 gradually approaches the side wall of the splint 1. At this time, the winding ring 102 gradually stops rotating, and the arc-shaped blade 105 on the surface of the splint 1 is inserted into the slot 104. Due to the rotation of the tie wheel 103, the tie on the tie wheel 103 contacts the arc-shaped blade 105 and cuts off by itself. Finally, the tie is attached to the arm with medical tape to complete the first aid bandaging.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A field first aid device, comprising a splint (1), characterized in that: The surface of the splint (1) is fixedly connected to a support sleeve (2), a slide rod (3) is symmetrically fixedly connected between the two sides of the inner wall of the support sleeve (2), a support plate (4) is slidably connected between the two slide rods (3), the surface of the slide rod (3) is movably sleeved with a compression spring (5) that matches the support plate (4), the middle of the support plate (4) and the middle of the splint (1) are both provided with a groove (6), a transmission mechanism (7) is movably connected between the surface of the support plate (4) and the side wall of the support sleeve (2), the surface of the support plate (4) is provided with an arc-shaped guide groove (8), and the inside of the arc-shaped guide groove (8) is movably connected to a smearing mechanism (9) that matches the transmission mechanism (7); A winding mechanism (10) that cooperates with the transmission mechanism (7) is movably connected between the surface of the support plate (4) and the surface of the clamping plate (1); a sinking groove (11) is symmetrically provided on a side of the clamping plate (1) away from the support plate (4); a spring pressure rod (12) is symmetrically fixedly connected inside the sinking groove (11); a cushion block (13) is fixedly connected to the inner wall of the sinking groove (11); an arc-shaped clamping block (14) is hinged at one end of the cushion block (13); and a surface of the arc-shaped clamping block (14) overlaps with the end of the corresponding spring pressure rod (12); The transmission mechanism (7) comprises a rectangular groove (701), the rectangular groove (701) is provided on the surface of the support plate (4), a transmission rack (702) is movably inserted into the interior of the rectangular groove (701), and the transmission rack (702) is fixedly connected between two sides of the inner wall of the support sleeve (2); One side of the support plate (4) is symmetrically connected to a slave synchronous wheel rod (703), the surface of the support plate (4) is connected to a bevel gear tube (704), the inner ring of the bevel gear tube (704) is fixedly connected to a one-way bearing (705), the inner ring of the one-way bearing (705) is fixedly connected to a master synchronous wheel rod (706), and a synchronous belt (707) is movably connected between the master synchronous wheel rod (706) and the surfaces of the two slave synchronous wheel rods (703); The surface of the support plate (4) is fixedly connected to a protective cylinder (708) that matches the bevel gear tube (704); the surface of the protective cylinder (708) is rotatably connected to a transmission gear rod (709) that matches the bevel gear tube (704); one end of the transmission gear rod (709) away from the protective cylinder (708) is meshed with the surface of the smearing mechanism (9); the middle part of the transmission gear rod (709) is fixedly sleeved with a circular gear (710); the surface of the circular gear (710) is meshed with the surface of the transmission rack (702); The smearing mechanism (9) comprises an end face gear (901), the end face gear (901) being rotatably connected to the surface of the support plate (4), the surface of the end face gear (901) being meshed with one end of the transmission mechanism (7), and the outer ring of the end face gear (901) being fixedly connected to an arc-shaped rack (902); The interior of the arc-shaped guide groove (8) is slidably connected to a guide block (903); the surface of the support plate (4) is rotatably connected to an adjusting gear rod (904) that cooperates with the arc-shaped rack (902); a torsion spring (905) is fixedly connected between the end of the adjusting gear rod (904) and the inner wall of the support plate (4); the surface of the adjusting gear rod (904) is fixedly connected to an adjusting plate (906); an adjusting groove (907) is provided on the surface of the adjusting plate (906); the adjusting plate (906) is slidably connected to the surface of the guide block (903) through the adjusting groove (907); the end of the guide block (903) away from the arc-shaped guide groove (8) is fixedly connected to a connecting block (908); the surface of the connecting block (908) is fixedly connected to a spring rod (909); one end of the spring rod (909) is fixedly connected to an arc-shaped applicator plate (910); The winding mechanism (10) includes four guide wheels (101), the four guide wheels (101) are rotatably connected to the surface of the support plate (4) at equal intervals, a winding ring (102) that cooperates with the transmission mechanism (7) is movably connected between the four guide wheels (101), and a tie wheel (103) is rotatably connected to the surface of the winding ring (102); The surface of the support plate (4) is symmetrically provided with slots (104), the surface of the splint (1) is symmetrically fixedly connected with arc-shaped blades (105), the two arc-shaped blades (105) correspond one to one with the two slots (104), the surface of the splint (1) is symmetrically connected with a wire pulling wheel (106), the surface of the wire pulling wheel (106) is wound with a pull rope (107), and one end of the pull rope (107) is fixedly connected to the surface of the support plate (4).

2. A field first aid device according to claim 1, characterized in that: A circular hole is provided on the surface of the support plate (4), a connecting bearing is fixedly sleeved on the surface of the bevel gear tube (704), and the outer ring of the connecting bearing is fixedly connected to the inner wall of the circular hole provided on the surface of the support plate.

3. A field first aid device according to claim 2, characterized in that: The transmission gear rod (709) is composed of a crossbar, a transmission bevel gear and a synchronous gear. The transmission bevel gear and the synchronous gear are respectively arranged at both ends of the crossbar. The surface of the transmission bevel gear meshes with the surface of the bevel gear tube (704), and the surface of the synchronous gear meshes with the surface of the smearing mechanism (9).

4. The field first aid device according to claim 3, characterized in that: The two arc-shaped clamping blocks (14) on the side wall of the clamping plate (1) are arranged in a symmetrical manner, and the surfaces of the arc-shaped clamping blocks (14) are provided with anti-slip teeth; The two spring pressure rods (12) are arranged in opposite directions.

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