A rescue cutting device

Abstract

This invention belongs to the field of medical rescue technology, and in particular to a cutting device for rescue, comprising a placement box, the upper surface of which is fixedly connected to a top cover by bolts. A reciprocating cutting assembly is disposed inside the placement box, the reciprocating cutting assembly comprising a second rotating shaft, a rotating disk, a toggle shaft, a hollow shaft cylinder, and a U-shaped plate. The second rotating shaft is disposed inside the placement box, one end of which is fixedly connected to the rotating disk, and the toggle shaft is fixedly connected to the side of the rotating disk away from the second rotating shaft. When the cutting blade reciprocates at a suitable angle, its surface serrations can safely cut soft materials with a hardness similar to plaster, and will not cause harm when in contact with human skin due to the small rotation angle, ensuring safety. Simultaneously, the cutting blade, which reciprocates at a fixed angle, can be switched to continuous rotation to cut hard materials such as metal and hardwood, increasing the applicable scenarios.

Description

Technical Field

[0001] This invention belongs to the field of medical rescue technology, and specifically relates to a cutting device for rescue. Background Technology

[0002] In the complex scenarios of medical rescue, rescuers often face many challenges. When accidents or sudden illnesses occur, there may be various obstacles at the scene, such as collapsed building structures and plaster materials for fixing the injured. These obstacles seriously hinder the smooth progress of rescue work. When cutting these obstacles, medical rescue cutting devices are particularly important.

[0003] Current medical rescue cutting devices often struggle to precisely control the cutting force when cutting materials with a hardness similar to plaster because the cutting blades are frequently rotating at high speeds. This can easily cause injury to the skin during the cutting process, increasing the risk and difficulty of rescue operations. Furthermore, most cutting devices are limited in function and can only cut materials of a specific hardness, making it impossible to flexibly switch between cutting materials of different hardnesses.

[0004] Therefore, a rescue cutting device is designed to solve the above problems. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a rescue cutting device that effectively solves the problems described in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for rescue, comprising a placement box, wherein a top cover is fixedly connected to the upper surface of the placement box by bolts;

[0007] The placement box is equipped with a reciprocating cutting assembly, which includes a second rotating shaft, a rotating disk, a toggle shaft, a hollow shaft cylinder, and a U-shaped plate. The second rotating shaft is located inside the placement box. A rotating disk is fixedly connected to one end of the second rotating shaft. A toggle shaft is fixedly connected to the side of the rotating disk away from the second rotating shaft. A hollow shaft cylinder is located above the second rotating shaft. A U-shaped plate is fixedly connected to the surface of the hollow shaft cylinder. The toggle shaft is inserted into the interior of the U-shaped plate. The U-shaped plate and the toggle shaft are slidably connected.

[0008] The surface of the placement box is provided with a switching cutting component, and one end of the hollow shaft is provided with a stabilizing component.

[0009] As a preferred embodiment of the rescue cutting device of the present invention, the reciprocating cutting assembly further includes a mounting plate, a third bearing, and a second bearing. The mounting plate is fixedly connected to the inside of the placement box. The second bearing is installed in a first circular groove inside the mounting plate. The second rotating shaft is inserted into the inside of the second bearing and is rotatably connected to the mounting plate through the second bearing. The third bearing is installed in a second circular groove inside the mounting plate. The hollow shaft is inserted into the inside of the third bearing and is rotatably connected to the mounting plate through the third bearing.

[0010] As a preferred embodiment of the rescue cutting device of the present invention, the reciprocating cutting assembly further includes a rectangular box, a first motor, a first bearing, a first rotating shaft, a circular block, a cutting blade, and a first octagonal insert. The rectangular box is disposed inside the placement box, and the first motor is installed inside the rectangular box. The first bearing is installed in a through groove on one side of the rectangular box. The first rotating shaft is inserted inside the first bearing. The first rotating shaft is rotatably connected to the rectangular box through the first bearing. One end of the first rotating shaft is fixedly connected to the circular block, and the other end of the first rotating shaft is fixedly connected to the end of the output shaft of the first motor. The end of the second rotating shaft away from the rotating disk is fixedly connected to the first octagonal insert. A cutting blade is disposed on one side of the placement box.

[0011] As a preferred embodiment of the rescue cutting device of the present invention, the reciprocating cutting assembly further includes a buffer pad. The buffer pad is provided in the octagonal groove on the side of the circular block away from the first rotating axis. The buffer pad is fixedly connected to the circular block. The side of the circular block away from the first rotating axis is provided with a guide groove that communicates with the octagonal groove. The first octagonal insert is inserted into the interior of the circular block. The circular block and the first octagonal insert are slidably connected.

[0012] As a preferred embodiment of the rescue cutting device of the present invention, the switching cutting assembly includes a rectangular housing, a roller, a built-in slider, and a first spring. The built-in slider is fixedly connected to the side of the rectangular housing away from the mounting plate. The rectangular housing is fitted onto the surface of the built-in slider. The first spring is disposed in the space formed by the rectangular housing and the built-in slider. The two ends of the first spring are fixedly connected to the built-in slider and the rectangular housing, respectively. The built-in slider and the rectangular housing are slidably connected. The roller is installed in a longitudinal square groove on the side of the rectangular housing away from the built-in slider. The roller is rotatably connected to the rectangular housing.

[0013] As a preferred embodiment of the rescue cutting device of the present invention, the switching cutting assembly further includes a square slider and a cylindrical handle. The rectangular box is inserted into a first U-shaped groove opened inside the placement box. The rectangular box is slidably connected to the placement box. Square sliders are fixedly connected to both sides of the rectangular box. The two square sliders are inserted into a second U-shaped groove opened inside the placement box. The second U-shaped groove is connected to the interior of the first U-shaped groove. The square sliders are slidably connected to the placement box. Cylindrical handles are fixedly connected to the sides of the two square sliders that are far apart from each other.

[0014] As a preferred embodiment of the rescue cutting device of the present invention, the switching cutting assembly further includes a second octagonal insert, a second spring, a built-in rotating shaft, a rectangular slider, a first annular disk, a fourth bearing, and a connecting ring. The built-in rotating shaft is inserted inside the hollow shaft cylinder, and the hollow shaft cylinder and the built-in rotating shaft are movably connected. The fourth bearing is sleeved on the surface of the hollow shaft cylinder, and a connecting ring is sleeved on the outer surface of the fourth bearing. The connecting ring is rotatably connected to the hollow shaft cylinder via the fourth bearing. The first annular disk is fixedly connected inside the connecting ring, and four rectangular blocks are fixedly connected inside the first annular disk. The rectangular slider is arranged in a ring array. The surface of the built-in rotating shaft has four rectangular grooves arranged in a ring array. The rectangular slider is inserted into the rectangular grooves and is slidably connected to the built-in rotating shaft. One end of the built-in rotating shaft is fixedly connected to a second octagonal insert. The second octagonal insert has the same shape as the first octagonal insert. A second spring is provided between the second octagonal insert and the first annular disk. The built-in rotating shaft is located inside the second spring, and the two ends of the second spring are fixedly connected to the second octagonal insert and the first annular disk, respectively. The upper surface of the rectangular box has an inclined cut.

[0015] As a preferred embodiment of the rescue cutting device of the present invention, the switching cutting assembly further includes a limiting ring and limiting blocks. The limiting ring is fixedly sleeved on the surface of the built-in rotating shaft. The hollow shaft cylinder is located between the limiting ring and the first annular disk. Six limiting blocks are fixedly connected to the side of the limiting ring near the hollow shaft cylinder. Six limiting slots are opened on the side of the hollow shaft cylinder near the limiting ring. The limiting blocks are inserted into the inside of the limiting slots.

[0016] As a preferred embodiment of the rescue cutting device of the present invention, the stabilizing component includes a fifth bearing, a stabilizing sleeve, a sixth bearing, an externally threaded sleeve, and a hexagonal insert. The sixth bearing is installed in a fourth circular groove on one side of the placement box. The stabilizing sleeve is inserted inside the inner ring of the sixth bearing. The fifth bearing is installed inside the stabilizing sleeve. The inner ring of the fifth bearing is fitted onto the surface of the hollow shaft. The stabilizing sleeve is rotatably connected to the placement box via the sixth bearing. The stabilizing sleeve is rotatably connected to the hollow shaft via the fifth bearing. A second annular disk is fixedly connected inside the stabilizing sleeve. An externally threaded sleeve is inserted in a third circular groove inside the second annular disk. The externally threaded sleeve and the second annular disk are fixedly connected. A hexagonal insert is inserted in a hexagonal slot inside the externally threaded sleeve. The hexagonal insert and the externally threaded sleeve are slidably connected. One end of the hexagonal insert is fixedly connected to one end of the built-in rotating shaft.

[0017] As a preferred embodiment of the rescue cutting device of the present invention, the stabilizing component further includes a first hexagonal nut and a second hexagonal nut. The surface of the external threaded sleeve is fitted with the first hexagonal nut and the second hexagonal nut. Both the first hexagonal nut and the second hexagonal nut are threadedly connected to the external threaded sleeve. The cutting blade is fitted on the surface of the external threaded sleeve and is located between the first hexagonal nut and the second hexagonal nut. The end of the hexagonal insert away from the limiting ring has a threaded hole.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use.

[0019] 1. The device is equipped with a reciprocating cutting component, which allows the cutting blade to rotate at a suitable angle during use. The serrations on its surface enable it to cut materials with relatively soft textures and a hardness similar to plaster. Furthermore, when the cutting blade comes into contact with human skin, the small angle of rotation of the blade will not cause harm to the skin, thus ensuring the safety of the cutting device during use.

[0020] 2. The cutting device is equipped with a switching component, which allows the cutting blade to switch from reciprocating fixed-angle rotation to continuous rotation. This enables the cutting of hard materials such as metal and hardwood through continuous rotation, thus increasing the applicable scenarios of the cutting device.

[0021] 3. Equipped with a stabilizing component, the cutting blade rotation is ensured to maintain stability during the rotation of the cutting blade driven by the external threaded sleeve, thereby ensuring the cutting effect of the cutting equipment.

[0022] By screwing the bolt with the washer into the threaded hole, the position of the hexagonal insert is further fixed, preventing the limiting insert from slipping out of the limiting slot due to vibration, thus further ensuring the effectiveness of the cutting device. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Sectional view at point AA;

[0026] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0028] Figure 5 This is a schematic diagram of the mounting plate and placement box in this invention;

[0029] Figure 6 This is a schematic diagram of the rectangular box and square slider in this invention;

[0030] Figure 7 This is a schematic diagram of the structure of the first spring and the built-in slider in this invention;

[0031] Figure 8 This is a schematic diagram of the structure of the second spring and the second octagonal insert in this invention;

[0032] Figure 9 This is a schematic diagram of the hollow shaft cylinder and U-shaped plate in this invention;

[0033] Figure 10 This is a schematic diagram of the structure of the limiting plug and the limiting ring in this invention;

[0034] Figure 11 This is a schematic diagram of the structure of the first annular disk and the rectangular slider in this invention;

[0035] Figure 12 This is a schematic diagram of the structure of the stabilizing sleeve and the second annular disk in this invention;

[0036] Figure 13 This is a schematic diagram of the structure of the first octagonal insert and the second rotating shaft in this invention;

[0037] In the picture:

[0038] 1. Placement box; 2. Top cover; 3. Reciprocating cutting assembly; 31. Rectangular box; 32. First motor; 33. First bearing; 34. First rotating shaft; 35. Circular block; 36. Octagonal groove; 37. Guide groove; 38. Buffer pad; 39. First octagonal insert; 310. Second rotating shaft; 311. Second bearing; 312. Rotary disk; 313. Actuating shaft; 314. Third bearing; 315. Hollow shaft cylinder; 316. U-shaped plate; 317. Mounting plate; 318. First circular groove; 319. Cutting blade; 320. Second circular groove; 4. Switching cutting assembly; 41. First U-shaped slide; 42. Second U-shaped slide; 43. Square slider; 44. Columnar handle; 45. Rectangular housing; 46. Longitudinal square groove; 47. Roller; 48. Built-in slider; 49. First spring; 410. Second octagonal insert; 411. Second spring; 412. Built-in pivot; 413. Rectangular groove; 414. Rectangular slider; 415. First annular disk; 416. Fourth bearing; 417. Connecting ring; 418. Limiting ring; 419. Limiting insert; 420. Limiting slot; 421. Inclined section; 5. Stabilizing component; 51. Fifth bearing; 52. Stabilizing sleeve; 53. Sixth bearing; 54. External threaded sleeve; 55. Third circular groove; 56. Hexagonal slot; 57. First hexagonal nut; 58. Second hexagonal nut; 59. Hexagonal insert rod; 510. Threaded hole; 511. Second annular disk; 512. Fourth circular groove. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example: Figures 1-13 As shown, the present invention provides a technical solution: a cutting device for rescue, including a placement box 1, and a top cover 2 is fixedly connected to the upper surface of the placement box 1 by bolts;

[0041] The placement box 1 is equipped with a reciprocating cutting assembly 3, which includes a second rotating shaft 310, a rotating disk 312, a toggle shaft 313, a hollow shaft cylinder 315, a rectangular box 31, a first motor 32, a mounting plate 317, a third bearing 314, a second bearing 311, a first bearing 33, a first rotating shaft 34, a circular block 35, a buffer pad 38, a cutting blade 319, a first octagonal insert block 39, and a U-shaped plate 316. The placement box 1 is equipped with a second rotating shaft 310. One end of the second rotating shaft 310 is fixedly connected to the rotating disk 312. The side of the rotating disk 312 away from the second rotating shaft 310 is fixedly connected to the toggle shaft 313. The hollow shaft cylinder 315 is arranged above the second rotating shaft 310. The surface of the hollow shaft cylinder 315 is fixedly connected to the U-shaped plate 316. The toggle shaft 313 is inserted into the U-shaped plate 316. The U-shaped plate 316 and the toggle shaft 313 are slidably connected.

[0042] The placement box 1 is fixedly connected to the mounting plate 317. The first circular groove 318 inside the mounting plate 317 is used to install the second bearing 311. The second rotating shaft 310 is inserted into the second bearing 311 and is rotatably connected to the mounting plate 317 through the second bearing 311. The second circular groove 320 inside the mounting plate 317 is used to install the third bearing 314. The hollow shaft cylinder 315 is inserted into the third bearing 314 and is rotatably connected to the mounting plate 317 through the third bearing 314.

[0043] The placement box 1 contains a rectangular box 31, inside which a first motor 32 is installed. A first bearing 33 is installed in a through slot on one side of the rectangular box 31. A first rotating shaft 34 is inserted inside the first bearing 33. The first rotating shaft 34 is rotatably connected to the rectangular box 31 through the first bearing 33. A circular block 35 is fixedly connected to one end of the first rotating shaft 34, and the other end of the first rotating shaft 34 is fixedly connected to the end of the output shaft of the first motor 32. A first octagonal insert block 39 is fixedly connected to the end of the second rotating shaft 310 away from the rotating disk 312. A cutting blade 319 is provided on one side of the placement box 1. The first motor 32 in this device can be powered by a normal 220V power supply or by other energy storage devices. It is suitable for field operation. The circuit of the first motor 32 connected to the external power supply will not affect the movement of the first motor 32, and the movement of the first motor 32 will not cause the circuit to break.

[0044] A buffer pad 38 is installed in an octagonal groove 36 on the side of the circular block 35 away from the first rotating shaft 34. The buffer pad 38 and the circular block 35 are fixedly connected. A guide groove 37 communicating with the octagonal groove 36 is provided on the side of the circular block 35 away from the first rotating shaft 34. A first octagonal insert 39 is inserted into the interior of the circular block 35. The circular block 35 and the first octagonal insert 39 are slidably connected. The shapes of the octagonal groove 36 and the guide groove 37 can be referenced. Figure 7 As shown, the octagonal groove 36 facilitates the synchronous rotation of the first octagonal insert 39 by the rotation of the circular block 35 when the first octagonal insert 39 is inserted into the interior of the circular block 35. The guide groove 37 facilitates the insertion of the first octagonal insert 39 into the interior of the circular block 35. The buffer pad 38 prevents noise caused by the collision between the first octagonal insert 39 and the interior of the circular block 35 under the action of elasticity, thereby ensuring the ease of connection between the circular block 35 and the first octagonal insert 39.

[0045] The surface of the placement box 1 is provided with a switching cutting assembly 4, which includes a rectangular shell 45, a roller 47, an internal slider 48, a square slider 43, a cylindrical handle 44, a second octagonal insert 410, a second spring 411, an internal rotating shaft 412, a rectangular slider 414, a first annular disc 415, a fourth bearing 416, a limiting ring 418, a limiting insert 419, a connecting ring 417, and a first spring 49. The side of the rectangular box 31 away from the mounting plate 317 is fixedly connected to the internal slider 48. The surface of the internal slider 48 is fitted with a rectangular shell 45. The space formed by the rectangular shell 45 and the internal slider 48 is provided with a first spring 49. The two ends of the first spring 49 are fixedly connected to the internal slider 48 and the rectangular shell 45, respectively. The internal slider 48 and the rectangular shell 45 are slidably connected. A roller 47 is installed in a longitudinal square groove 46 opened on the side of the rectangular shell 45 away from the internal slider 48. The roller 47 is rotatably connected to the rectangular shell 45.

[0046] A rectangular box 31 is inserted into a first U-shaped groove 41 inside the placement box 1. The rectangular box 31 is slidably connected to the placement box 1. Two square sliders 43 are fixedly connected to both sides of the rectangular box 31. The two square sliders 43 are inserted into a second U-shaped groove 42 inside the placement box 1. The second U-shaped groove 42 is connected to the interior of the first U-shaped groove 41. The square sliders 43 are slidably connected to the placement box 1. A columnar handle 44 is fixedly connected to the side of the two square sliders 43 that is far apart from each other.

[0047] A built-in rotating shaft 412 is inserted inside the hollow shaft cylinder 315, and the hollow shaft cylinder 315 and the built-in rotating shaft 412 are movably connected. A fourth bearing 416 is sleeved on the surface of the hollow shaft cylinder 315, and a connecting ring 417 is sleeved on the outer ring of the fourth bearing 416. The connecting ring 417 is rotatably connected to the hollow shaft cylinder 315 through the fourth bearing 416. A first annular disk 415 is fixedly connected inside the connecting ring 417, and four rectangular sliders 414 arranged in a ring array are fixedly connected inside the first annular disk 415. Four rectangular grooves 413 arranged in a ring array are opened on the surface of the built-in rotating shaft 412, and the rectangular sliders 414 are inserted into the rectangular grooves 413. The rectangular sliders 414 are connected to the built-in rotating shaft 412. A sliding connection is used, with one end of the built-in rotating shaft 412 fixedly connected to a second octagonal insert 410. The second octagonal insert 410 has the same shape as the first octagonal insert 39. A second spring 411 is provided between the second octagonal insert 410 and the first annular disk 415. The built-in rotating shaft 412 is located inside the second spring 411, and both ends of the second spring 411 are fixedly connected to the second octagonal insert 410 and the first annular disk 415, respectively. Under the action of the elastic potential energy of the first spring 49, when the circular block 35 is fitted onto the surface of the first octagonal insert 39, the elastic potential energy of the first spring 49 causes a suitable force between the circular block 35 and the first octagonal insert 39, ensuring that the circular block 35 drives the first annular disk 415. When the octagonal insert 39 is in place, the connection between the circular block 35 and the first octagonal insert 39 is secure. Under the elastic potential energy of the first spring 49, when the circular block 35 is fitted onto the surface of the second octagonal insert 410, the circular block 35 drives the second octagonal insert 410 to move, pushing the limiting insert 419 to slide out of the limiting slot 420. Under the elastic potential energy of the first spring 49, there is still a force between the circular block 35 and the second octagonal insert 410, thus ensuring the secure connection between the second octagonal insert 410 and the circular block 35 when the circular block 35 is fitted onto the second octagonal insert 410. Furthermore, under the elastic potential energy of the first spring 49, the limiting insert 419 slides out of the limiting slot 420, preventing… To prevent the built-in rotating shaft 412 from being unable to rotate due to the limitation of the hollow shaft cylinder 315, the upper surface of the rectangular box 31 is provided with an inclined cut surface 421. The inclined cut surface 421 facilitates the longitudinal sliding of the rectangular box 31 when it moves upward, avoiding the problem that the rectangular box 31 is obstructed from moving if it does not move to the groove wall of the first U-shaped slide groove 41. When neither the second octagonal insert 410 nor the first octagonal insert 39 is under pressure, the distance between the second octagonal insert 410 and the mounting plate 317 is greater than the distance between the first octagonal insert 39 and the mounting plate 317, thereby facilitating the sliding of the limiting insert 419 out of the limiting slot 420 under the compression of the circular block 35.

[0048] A limiting ring 418 is fixedly sleeved on the surface of the built-in rotating shaft 412. The hollow shaft cylinder 315 is located between the limiting ring 418 and the first annular disk 415. Six limiting blocks 419 are fixedly connected to the side of the limiting ring 418 near the hollow shaft cylinder 315. Six limiting slots 420 are opened on the side of the hollow shaft cylinder 315 near the limiting ring 418. The limiting blocks 419 are inserted into the inside of the limiting slots 420.

[0049] A stabilizing component 5 is provided at one end of the hollow shaft cylinder 315. The stabilizing component 5 includes a fifth bearing 51, a stabilizing sleeve 52, a sixth bearing 53, an externally threaded sleeve 54, a first hexagonal nut 57, a second hexagonal nut 58, and a hexagonal insert 59. The sixth bearing 53 is installed in the fourth circular groove 512 opened on one side of the placement box 1. The stabilizing sleeve 52 is inserted into the inner ring of the sixth bearing 53. The fifth bearing 51 is installed inside the stabilizing sleeve 52. The inner ring of the fifth bearing 51 is fitted onto the surface of the hollow shaft cylinder 315. The stabilizing sleeve 52 is connected to the sixth bearing 53 and the placement box 1. The housing 1 is rotatably connected, and the stabilizing sleeve 52 is rotatably connected to the fifth bearing 51 and the hollow shaft cylinder 315. The inside of the stabilizing sleeve 52 is fixedly connected to the second annular disk 511. The third circular groove 55 opened inside the second annular disk 511 is used to insert the external threaded sleeve 54. The external threaded sleeve 54 is fixedly connected to the second annular disk 511. The hexagonal slot 56 opened inside the external threaded sleeve 54 is used to insert the hexagonal insert 59. The hexagonal insert 59 and the external threaded sleeve 54 are slidably connected. One end of the hexagonal insert 59 is fixedly connected to one end of the built-in rotating shaft 412.

[0050] A first hexagonal nut 57 and a second hexagonal nut 58 are fitted onto the surface of the externally threaded sleeve 54. Both the first hexagonal nut 57 and the second hexagonal nut 58 are threadedly connected to the externally threaded sleeve 54. A cutting blade 319 is fitted onto the surface of the externally threaded sleeve 54, positioned between the first hexagonal nut 57 and the second hexagonal nut 58. The first hexagonal nut 57 and the second hexagonal nut 58 clamp the cutting blade 319 under the action of the threads. When the cutting blade 319 needs to be replaced, the second hexagonal nut 58 is released from the externally threaded sleeve 54. The surface can be unscrewed to replace the cutting blade 319. The end of the hexagonal insert 59 away from the limiting ring 418 has a threaded hole 510. When the cutting blade 319 needs to rotate continuously and is used for a long time, the bolt with a washer is screwed into the threaded hole 510, and the washer and the end of the second annular disk 511 are put into contact, thereby achieving the effect of further fixing the position of the hexagonal insert 59. This avoids the problem of the limiting insert 419 slipping out of the limiting slot 420 due to vibration, and further ensures the use effect of the cutting device.

[0051] Working Principle: During medical rescue operations, when using this cutting device to cut materials that are relatively soft and have a plaster-like hardness, such as certain soft plastics or foam materials, which come into contact with human skin, the first motor 32 is connected to an external power source. The controller mounted on the surface of the housing 1 starts the first motor 32. The output shaft of the first motor 32 drives the first rotating shaft 34 to rotate. The rotation of the first rotating shaft 34 causes the circular block 35 to rotate synchronously. Because the first octagonal insert 39 is inserted into the circular block 35, the shape of the octagonal slot 36 and the first octagonal insert 39 further drives the second rotating shaft 310 to rotate. The rotation of the second rotating shaft 310 drives the rotating disk 312 to rotate, which in turn drives the actuating shaft 313 to rotate synchronously. During the rotation of the actuating shaft 313, it slides inside the U-shaped plate 316. Due to the positional constraint of the hollow shaft cylinder 315, the U-shaped plate 316 is angled downwards. The reciprocating oscillation of the hollow shaft cylinder 315 achieves the effect of reciprocating rotation. During this process, the limiting block 419 is inserted into the limiting slot 420. As the hollow shaft cylinder 315 reciprocates, the limiting ring 418 rotates synchronously through the limiting block 419, which in turn drives the internal rotating shaft 412 and the hexagonal insert 59 to rotate synchronously. The rotation of the hexagonal insert 59 drives the external threaded sleeve 54 to rotate, which in turn drives the cutting blade 319 to reciprocate during the reciprocating rotation of the hollow shaft cylinder 315. This is beneficial for the cutting blade 319 to reciprocate at a suitable angle during the use of the cutting device. Through the serrations on its surface, it can cut some relatively soft materials with a hardness similar to gypsum. Moreover, when the cutting blade 319 comes into contact with human skin, the small rotation angle of the cutting blade 319 will not cause harm to the human skin, thus ensuring the safety of the cutting device during use.

[0052] During medical rescue operations, when the cutting device needs to cut hard materials such as metal and hardwood, a force is applied to the two cylindrical handles 44, causing the two square sliders 43 to slide within the corresponding second U-shaped grooves 42. The movement of the square sliders 43 causes the rectangular box 31 to slide inside the first U-shaped groove 41. As the rectangular box 31 moves away from the mounting plate 317, it causes the built-in slider 48 to move synchronously, thereby increasing the depth of the built-in slider 48 into the rectangular housing 45. The force increases, thus continuously compressing the first spring 49. The rectangular box 31 slides laterally inside the first U-shaped groove 41. When the rectangular box 31 moves to fit against the groove wall of the first U-shaped groove 41, the square slider 43 moves precisely to the groove wall of the second U-shaped groove 42. Under the upward force applied to the cylindrical handle 44, the rectangular box 31 can move longitudinally along the groove wall of the first U-shaped groove 41. When the upper surface of the rectangular box 31 fits against the groove wall of the first U-shaped groove 41, the force applied to the cylindrical handle 44 is slowly released, and the elastic potential energy of the first spring 49 is utilized. Under the action of the first U-shaped groove 41, the rectangular box 31 slides laterally along the groove wall of the first U-shaped groove 41. The movement of the rectangular box 31 drives the circular block 35 to move synchronously until the circular block 35 is fitted onto the surface of the second octagonal insert 410. Under the action of the elastic potential energy of the first spring 49, the circular block 35 applies a force to the second octagonal insert 410, and this force is applied to the second spring 411, causing the second spring 411 to be compressed. This causes the second octagonal insert 410 to drive the built-in rotating shaft 412 to slide inside the hollow shaft cylinder 315. The movement of the built-in rotating shaft 412... The limiting ring 418 moves, which in turn causes the limiting block 419 to slide out of the limiting slot 420. Under the action of the elastic potential energy of the first spring 49 and the elastic potential energy of the second spring 411, after the limiting block 419 slides out of the limiting slot 420, and after the limiting ring 418 moves the limiting block 419 to a suitable position, the movement stops. At this time, there is a suitable force between the circular block 35 and the second octagonal block 410. Under the constraint of the elastic potential energy of the first spring 49 and the groove wall of the first U-shaped slide 41, the position of the rectangular box 31 is restricted.

[0053] The first motor 32 is started by the controller installed on the surface of the placement box 1. The operation of the first motor 32 drives the circular block 35 to rotate, which in turn drives the second octagonal insert block 410 and the built-in rotating shaft 412 to rotate synchronously. The rotation of the built-in rotating shaft 412 drives the hexagonal insert rod 59 to rotate, which drives the external threaded sleeve 54 to rotate, which in turn drives the cutting blade 319 to rotate. At this time, the cutting blade 319 rotates continuously, which is beneficial to switch the cutting blade 319 from reciprocating fixed angle rotation to continuous rotation. Thus, the continuously rotating cutting blade 319 can cut hard materials such as metal and hard wood, increasing the applicable scenarios of the cutting equipment.

[0054] When it is necessary to switch back to the small-angle reciprocating rotation of the cutting blade 319, the rectangular box 31 moves toward the rectangular shell 45. When the circular block 35 moves away from the second octagonal insert 410, under the action of the elastic potential energy of the second spring 411, the second octagonal insert 410 moves synchronously with the circular block 35 for a certain distance and then slides out from the inside of the circular block 35. During this process, the built-in rotating shaft 412 drives the limiting ring 418 to move toward the hollow shaft cylinder 315. When the limiting insert 419 is inserted into the limiting slot 420 under the action of the elastic potential energy of the second spring 411, the connection between the hollow shaft cylinder 315 and the limiting insert 419 is realized.

[0055] When the ends of the limiting insert 419 and the hollow shaft cylinder 315 are in contact but have not slid into the limiting slot 420, the cutting blade 319 is slightly rotated. The rotation of the cutting blade 319 drives the hexagonal insert rod 59 to rotate synchronously, which in turn drives the built-in rotating shaft 412 and the limiting ring 418 to rotate synchronously. This causes the limiting insert 419 to slide at the end of the hollow shaft cylinder 315 until the limiting insert 419 slides into the limiting slot 420, thereby connecting the hollow shaft cylinder 315 and the limiting insert 419. When the limiting insert 419 is inserted into the limiting slot 420, the swing of the U-shaped plate 316 can drive the hollow shaft cylinder 315 and the built-in rotating shaft 412 to rotate synchronously.

[0056] During the process of rotating the cutting blade 319 to make the limiting insert 419 slide into the limiting slot 420, although the limiting insert 419 exerts a suitable force on the end of the hollow shaft cylinder 315 under the action of the elastic potential energy of the second spring 411, the rotation of the cutting blade 319 may drive the hollow shaft cylinder 315 to rotate synchronously. However, the rotation of the hollow shaft cylinder 315 drives the U-shaped plate 316 to rotate, which limits the range of rotation of the hollow shaft cylinder 315 under the action of the actuating shaft 313. When the hollow shaft cylinder 315 rotates to the limit, the limiting insert 419 can slide into the interior of the limiting slot 420.

[0057] The sixth bearing 53 enables the stabilizing sleeve 52 to rotate smoothly. By restricting the positions of the second annular disk 511 and the external threaded sleeve 54 by the stabilizing sleeve 52, the stability of the rotation of the cutting blade 319 can be ensured during the rotation of the cutting blade 319 driven by the external threaded sleeve 54, thereby ensuring the cutting effect of the cutting equipment.

[0058] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rescue cutting device, comprising a placing box (1), the upper surface of the placing box (1) is fixedly connected with an upper cover (2) through bolts; characterized in that The inside of the placing box (1) is provided with a reciprocating cutting assembly (3), the reciprocating cutting assembly (3) comprises a second rotating shaft (310), a rotating disc (312), a poking shaft (313), a hollow shaft cylinder (315) and a U-shaped plate (316), the inside of the placing box (1) is provided with a second rotating shaft (310), one end of the second rotating shaft (310) is fixedly connected with a rotating disc (312), one side of the rotating disc (312) away from the second rotating shaft (310) is fixedly connected with a poking shaft (313), the upper side of the second rotating shaft (310) is provided with a hollow shaft cylinder (315), the surface of the hollow shaft cylinder (315) is fixedly connected with a U-shaped plate (316), the poking shaft (313) is inserted into the inside of the U-shaped plate (316), and the U-shaped plate (316) and the poking shaft (313) are in sliding connection; The surface of the placing box (1) is provided with a switching cutting assembly (4), one end of the hollow shaft cylinder (315) is provided with a stabilizing assembly (5); The reciprocating cutting assembly (3) further includes a rectangular box (31), a first motor (32), a first bearing (33), a first rotating shaft (34), a circular block (35), a cutting blade (319) and a first octagonal plug (39), the inside of the placing box (1) is provided with the rectangular box (31), the inside of the rectangular box (31) is provided with the first motor (32), the through slot, which is formed in one side of the rectangular box (31), is provided with the first bearing (33), the inside of the first bearing (33) is provided with the first rotating shaft (34), the first rotating shaft (34) is rotatably connected with the first bearing (33) and the rectangular box (31), one end of the first rotating shaft (34) is fixedly connected with the circular block (35), the other end of the first rotating shaft (34) is fixedly connected with the output shaft of the first motor (32), one end, which is away from the rotating disc (312), of the second rotating shaft (310) is fixedly connected with the first octagonal plug (39), one side of the placing box (1) is provided with the cutting blade (319), the switching cutting assembly (4) includes a rectangular shell (45), a roller (47), an embedded sliding block (48) and a first spring (49), one side, which is away from the mounting plate (317), of the rectangular box (31) is fixedly connected with the embedded sliding block (48), the surface of the embedded sliding block (48) is sleeved with the rectangular shell (45), the space, which is formed by the rectangular shell (45) and the embedded sliding block (48), is provided with the first spring (49), the two ends of the first spring (49) are fixedly connected with the embedded sliding block (48) and the rectangular shell (45) respectively, the embedded sliding block (48) and the rectangular shell (45) are slidably connected, the longitudinal square groove (46), which is formed in one side, which is away from the embedded sliding block (48), of the rectangular shell (45), is provided with the roller (47), the roller (47) is rotatably connected with the rectangular shell (45), the switching cutting assembly (4) further includes a second octagonal plug (410), a second spring (411), an embedded rotating shaft (412), a rectangular sliding block (414), a first annular disc (415), a fourth bearing (416) and a connecting ring (417), the inside of the hollow shaft cylinder (315) is provided with the embedded rotating shaft (412), the hollow shaft cylinder (315) and the embedded rotating shaft (412) are movably connected, the surface of the hollow shaft cylinder (315) is sleeved with the fourth bearing (416), the surface of the outer ring of the fourth bearing (416) is sleeved with the connecting ring (417), the connecting ring (417) is rotatably connected with the hollow shaft cylinder (315) through the fourth bearing (416), the inside of the connecting ring (417) is fixedly connected with the first annular disc (415), the inside of the first annular disc (415) is fixedly connected with four rectangular sliding blocks (414) which are arranged in an annular array, the surface of the embedded rotating shaft (412) is provided with four rectangular sliding grooves (413) which are arranged in an annular array, the rectangular sliding blocks (414) are inserted into the inside of the rectangular sliding grooves (413), and the rectangular sliding blocks (414) are slidably connected with the embedded rotating shaft (412).One end of built-in rotating shaft (412) is fixedly connected with second octagonal plug block (410), the second octagonal plug block (410) is same with the shape of first octagonal plug block (39), second spring (411) is arranged between second octagonal plug block (410) and first annular disc (415), built-in rotating shaft (412) is located in the inside of second spring (411), and both ends of second spring (411) are fixedly connected with second octagonal plug block (410) and first annular disc (415) respectively, the upper surface of rectangular box (31) is provided with inclined surface (421), the switching cutting assembly (4) further includes limiting ring (418) and limiting plug (419), the surface of built-in rotating shaft (412) is fixedly provided with limiting ring (418), hollow shaft cylinder (315) is located between limiting ring (418) and first annular disc (415), one side of limiting ring (418) close to hollow shaft cylinder (315) is fixedly connected with six limiting plugs (419), one side of hollow shaft cylinder (315) close to limiting ring (418) is provided with six limiting slots (420), limiting plug (419) is inserted into the inside of limiting slot (420).

2. The rescue cutting device according to claim 1, characterized in that: The reciprocating cutting assembly (3) further comprises a mounting plate (317), a third bearing (314) and a second bearing (311), the inside of the placing box (1) is fixedly connected with a mounting plate (317), the second bearing (311) is installed in a first circular groove (318) formed in the inside of the mounting plate (317), the second rotating shaft (310) is inserted into the second bearing (311), and the second rotating shaft (310) is rotationally connected with the second bearing (311) and the mounting plate (317); the third bearing (314) is installed in a second circular groove (320) formed in the inside of the mounting plate (317), and the hollow shaft cylinder (315) is inserted into the third bearing (314) and rotationally connected with the third bearing (314) and the mounting plate (317).

3. The rescue cutting device according to claim 1, characterized in that: The reciprocating cutting assembly (3) further comprises a buffer pad (38), the buffer pad (38) is arranged in an octagonal groove (36) formed in the side of the circular block (35) away from the first rotating shaft (34), the buffer pad (38) is fixedly connected with the circular block (35), the side of the circular block (35) away from the first rotating shaft (34) is provided with a guide groove (37) in communication with the octagonal groove (36), the first octagonal insert block (39) is inserted into the inside of the circular block (35), and the circular block (35) is in sliding connection with the first octagonal insert block (39).

4. The rescue cutting device according to claim 1, characterized in that: The switching cutting assembly (4) further comprises a square sliding block (43) and a cylindrical handle (44), the rectangular box (31) is inserted into a first U-shaped sliding slot (41) formed in the placing box (1), and the rectangular box (31) is in sliding connection with the placing box (1); the two sides of the rectangular box (31) are fixedly connected with the square sliding blocks (43), respectively; the two square sliding blocks (43) are inserted into a second U-shaped sliding slot (42) formed in the placing box (1); the second U-shaped sliding slot (42) is in communication with the inside of the first U-shaped sliding slot (41); the square sliding blocks (43) are in sliding connection with the placing box (1); and the two square sliding blocks (43) are fixedly connected with the cylindrical handles (44) on the sides away from each other.

5. The rescue cutting device according to claim 1, characterized in that: The stable assembly (5) comprises a fifth bearing (51), a stable sleeve (52), a sixth bearing (53), an externally-threaded sleeve (54) and a six-sided insertion rod (59); the sixth bearing (53) is installed in a fourth circular groove (512) formed in one side of the placing box (1); the stable sleeve (52) is inserted into the inside of the inner ring of the sixth bearing (53); the fifth bearing (51) is installed in the inside of the stable sleeve (52); the inner ring of the fifth bearing (51) is sleeved on the surface of the hollow shaft cylinder (315); the stable sleeve (52) is in rotary connection with the placing box (1) through the sixth bearing (53); the stable sleeve (52) is in rotary connection with the hollow shaft cylinder (315) through the fifth bearing (51); the inside of the stable sleeve (52) is fixedly connected with a second annular disc (511); the externally-threaded sleeve (54) is inserted into a third circular groove (55) formed in the inside of the second annular disc (511); the externally-threaded sleeve (54) is fixedly connected with the second annular disc (511); the six-sided insertion rod (59) is inserted into a six-sided insertion slot (56) formed in the inside of the externally-threaded sleeve (54); and the six-sided insertion rod (59) is in sliding connection with the externally-threaded sleeve (54); one end of the six-sided insertion rod (59) is fixedly connected with one end of the built-in rotating shaft (412).

6. The rescue cutting device according to claim 5, characterized in that: The stable assembly (5) further comprises a first hexagonal nut (57) and a second hexagonal nut (58); the surface of the externally-threaded sleeve (54) is sleeved with the first hexagonal nut (57) and the second hexagonal nut (58); the first hexagonal nut (57) and the second hexagonal nut (58) are in threaded connection with the externally-threaded sleeve (54); the cutting blade (319) is sleeved on the surface of the externally-threaded sleeve (54), and the cutting blade (319) is located between the first hexagonal nut (57) and the second hexagonal nut (58); and one end of the six-sided insertion rod (59) away from the limiting annular ring (418) is provided with a threaded hole (510).

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