Cutting device for rescue

Abstract

The invention belongs to the technical field of medical rescue, and particularly relates to a cutting device for rescue, which comprises a placing box, the upper surface of the placing box is fixedly connected with an upper cover through a bolt, a reciprocating cutting assembly is arranged in the placing box, and the reciprocating cutting assembly comprises a second rotating shaft, a rotating disc, a shifting shaft, a hollow shaft barrel and a U-shaped plate. A second rotating shaft is arranged in the placing box, one end of the second rotating shaft is fixedly connected with a rotating disc, and the face, away from the second rotating shaft, of the rotating disc is fixedly connected with a shifting shaft; when the cutting blade rotates in a reciprocating mode at a proper angle, the sawteeth on the surface of the cutting blade can safely cut soft materials with the hardness similar to that of gypsum, damage cannot be caused due to the small rotation angle when the cutting blade makes contact with the skin of the human body, use safety is guaranteed, and meanwhile the cutting blade rotating in a reciprocating mode at a fixed angle can be switched into continuous rotation. And hard materials such as metal and hard wood are cut, and the application scene is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of medical rescue, and in particular relates to a cutting device for rescue. Background Art

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

[0003] When current medical rescue cutting devices cut materials with a hardness similar to that of plaster, it is difficult to accurately control the cutting force because the cutting blades are often in a high-speed rotating state. This is very likely to cause damage to human skin during the cutting process, increasing the risk and difficulty of rescue. In addition, most cutting devices have a single function and can only cut materials of a specific hardness, and cannot flexibly switch between the cutting needs of materials of different hardnesses.

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

[0005] In order to solve the problems raised in the above background technology, the present invention provides a rescue cutting device, which can effectively solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a rescue cutting device, comprising a placement box, the upper surface of which is fixedly connected with an upper cover by bolts;

[0007] A reciprocating cutting assembly is arranged inside the placing box, and the reciprocating cutting assembly 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 arranged inside the placing box, one end of the second rotating shaft is fixedly connected to the rotating disk, a side of the rotating disk away from the second rotating shaft is fixedly connected to the toggle shaft, a hollow shaft cylinder is arranged 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 inside the U-shaped plate, and 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 cylinder is provided with a stabilizing component.

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

[0010] As a preferred rescue cutting device of the present invention, the reciprocating cutting assembly also includes a rectangular box, a first motor, a first bearing, a first rotating shaft, a circular block, a cutting blade and a first octagonal plug block, a rectangular box is arranged inside the placement box, the first motor is installed inside the rectangular box, a first bearing is installed in a through groove opened on one side of the rectangular box, a 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, 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 plug block, and a cutting blade is arranged on one side of the placement box.

[0011] As a preferred rescue cutting device of the present invention, the reciprocating cutting assembly also includes a buffer pad, a buffer pad is arranged in an octagonal groove opened on the side of the circular block away from the first rotating shaft, the buffer pad and the circular block are fixedly connected, a guide groove connected to the octagonal groove is opened on the side of the circular block away from the first rotating shaft, the first octagonal plug block is inserted inside the circular block, and the circular block is slidably connected to the first octagonal plug block.

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

[0013] As a preferred rescue cutting device of the present invention, the switching cutting assembly also includes a square slider and a cylindrical handle, the rectangular box is inserted in a first U-shaped slide groove opened inside the placement box, the rectangular box is slidably connected to the placement box, and square sliders are fixedly connected on both sides of the rectangular box, and the two square sliders are inserted in the second U-shaped slide groove opened inside the placement box, the second U-shaped slide groove is connected to the interior of the first U-shaped slide groove, the square slider is slidably connected to the placement box, and the two sides of the square sliders away from each other are fixedly connected with cylindrical handles.

[0014] As a preferred rescue cutting device of the present invention, the switching cutting assembly also includes a second octagonal plug block, a second spring, a built-in rotating shaft, a rectangular slider, a first annular disc, a fourth bearing and a connecting ring, the interior of the hollow shaft cylinder is inserted with a built-in rotating shaft, the hollow shaft cylinder and the built-in rotating shaft are movably connected, the surface of the hollow shaft cylinder is sleeved with a fourth bearing, the surface of the outer ring of the fourth bearing is sleeved with a connecting ring, the connecting ring is rotatably connected to the hollow shaft cylinder through the fourth bearing, the interior of the connecting ring is fixedly connected to the first annular disc, and the interior of the first annular disc is fixedly connected to four A rectangular slider in an annular array, four rectangular slide grooves in an annular array are opened on the surface of the built-in rotating shaft, the rectangular slider is inserted inside the rectangular slide groove, the rectangular slider is slidably connected to the built-in rotating shaft, one end of the built-in rotating shaft is fixedly connected with a second octagonal plug block, the second octagonal plug block has the same shape as the first octagonal plug block, a second spring is arranged between the second octagonal plug block and the first annular disc, the built-in rotating shaft is located inside the second spring, and the two ends of the second spring are respectively fixedly connected to the second octagonal plug block and the first annular disc, and an inclined section is opened on the upper surface of the rectangular box.

[0015] As a preferred rescue cutting device of the present invention, the switching cutting assembly also includes a limiting ring and a limiting plug block, the surface fixed sleeve of the built-in rotating shaft is provided with a limiting ring, the hollow shaft cylinder is located between the limiting ring and the first annular disc, and the side of the limiting ring close to the hollow shaft cylinder is fixedly connected with six limiting plug blocks, and the side of the hollow shaft cylinder close to the limiting ring is provided with four limiting slots, and the limiting plug blocks are inserted inside the limiting slots.

[0016] As a preferred 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 insertion rod, the sixth bearing is installed in the fourth circular groove opened on one side of the placement box, the interior of the inner ring of the sixth bearing is inserted with a stabilizing sleeve, the interior of the stabilizing sleeve is installed with a fifth bearing, the inner ring of the fifth bearing is sleeved on the surface of the hollow shaft cylinder, the stabilizing sleeve is rotatably connected to the placement box through the sixth bearing, the stabilizing sleeve is rotatably connected to the hollow shaft cylinder through the fifth bearing, the interior of the stabilizing sleeve is fixedly connected with a second annular disc, the third circular groove opened in the interior of the second annular disc is inserted with an externally threaded sleeve, the externally threaded sleeve and the second annular disc are fixedly connected, the hexagonal slot opened in the externally threaded sleeve is inserted with a hexagonal insertion rod, the hexagonal insertion rod and the externally threaded sleeve are slidably connected, and one end of the hexagonal insertion rod is fixedly connected to one end of the built-in rotating shaft.

[0017] As a preferred rescue cutting device of the present invention, the stabilizing component also includes a first hexagonal nut and a second hexagonal nut, the surface of the externally threaded pipe sleeve is sleeved with the first hexagonal nut and the second hexagonal nut, the first hexagonal nut and the second hexagonal nut are both threadedly connected to the externally threaded pipe sleeve, the cutting blade is sleeved on the surface of the externally threaded pipe sleeve, and the cutting blade is located between the first hexagonal nut and the second hexagonal nut, and a threaded hole is provided at one end of the hexagonal insertion rod away from the limiting ring.

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

[0019] 1. A reciprocating cutting assembly is provided, which is conducive to the cutting blade to reciprocate at an appropriate angle when the cutting device is used. The saw teeth on its surface can cut some relatively soft materials with a hardness similar to that of gypsum, and when the cutting blade contacts the human skin, the cutting blade rotates at a small angle and does not cause damage to the human skin, thereby ensuring the safety of the cutting device during use.

[0020] 2. A switching cutting assembly is provided, which is conducive to switching the cutting blade that rotates reciprocatingly at a fixed angle to continuous rotation, and then the continuously rotating cutting blade can be used to cut hard materials such as metal and hard wood, thereby increasing the applicable scenarios of the cutting equipment.

[0021] 3. A stabilizing component is provided to ensure the stability of the rotation of the cutting blade when the external threaded pipe sleeve drives the cutting blade to rotate, thereby ensuring the cutting effect of the cutting device;

[0022] By screwing the bolt with a washer into the threaded hole, the position of the hexagonal rod can be further fixed, avoiding the problem of the limit block sliding out of the limit slot due to vibration, thereby further ensuring the use effect of the cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

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

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

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

[0028] Figure 5 It is a structural schematic diagram of the mounting plate and the placement box in the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the rectangular box and the square slider in the present invention;

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

[0031] Figure 8 It is a schematic diagram of the structure of the second spring and the second octagonal plug in the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the hollow shaft cylinder and the U-shaped plate in the present invention;

[0033] Fig.10 It is a schematic diagram of the structure of the limiting plug and the limiting ring in the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of the first annular disk and the rectangular slider in the present invention;

[0035] Fig.12 It is a schematic diagram of the structure of the stabilizing sleeve and the second annular disc in the present invention;

[0036] Fig.13 It is a schematic diagram of the structure of the first octagonal plug block and the second rotating shaft in the present invention;

[0037] In the figure:

[0038] 1. Placement box; 2. Upper cover; 3. Reciprocating cutting assembly; 31. Rectangular box; 32. First motor; 33. First bearing; 34. First rotating shaft; 35. Round block; 36. Octagonal groove; 37. Guide groove; 38. Buffer pad; 39. First octagonal plug block; 310. Second rotating shaft; 311. Second bearing; 312. Rotating disk; 313. Driving 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 groove; 42. Second U-shaped slide groove; 43. Square slider; 44. Column handle; 45. Rectangular shell; 46. Longitudinal square groove; 47. Roller; 48. Built-in slider; 49. First spring; 410. Second octagonal plug; 411. Second spring; 412. Built-in rotating shaft; 413. Rectangular slide; 414. Rectangular slider; 415. First annular disc; 416. Fourth bearing; 417. Connecting ring; 418. Limiting ring; 419. Limiting plug; 420. Limiting slot; 421. Inclined section; 5. Stabilizing component; 51. Fifth bearing; 52. Stabilizing sleeve; 53. Sixth bearing; 54. Externally threaded sleeve; 55. Third circular groove; 56. Hexagonal slot; 57. First hexagonal nut; 58. Second hexagonal nut; 59. Hexagonal insert; 510. Threaded hole; 511. Second annular disc; 512. Fourth circular groove. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example: Figure 1-Figure 13 As shown, the present invention provides a technical solution, a rescue cutting device, comprising a placement box 1, the upper surface of the placement box 1 is fixedly connected with an upper cover 2 by bolts;

[0041] A reciprocating cutting assembly 3 is arranged inside the placement box 1, and the reciprocating cutting assembly 3 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 plug block 39 and a U-shaped plate 316. A second rotating shaft 310 is arranged inside the placement box 1, one end of the second rotating shaft 310 is fixedly connected to the rotating disk 312, a side of the rotating disk 312 away from the second rotating shaft 310 is fixedly connected to the toggle shaft 313, a hollow shaft cylinder 315 is arranged above the second rotating shaft 310, a surface of the hollow shaft cylinder 315 is fixedly connected to the U-shaped plate 316, the toggle shaft 313 is inserted into the inside of the U-shaped plate 316, and the U-shaped plate 316 and the toggle shaft 313 are slidably connected.

[0042] A mounting plate 317 is fixedly connected to the interior of the placement box 1, a second bearing 311 is installed in a first circular groove 318 opened in the mounting plate 317, a second rotating shaft 310 is inserted in the second bearing 311, the second rotating shaft 310 is rotatably connected to the mounting plate 317 through the second bearing 311, a third bearing 314 is installed in a second circular groove 320 opened in the mounting plate 317, a hollow shaft cylinder 315 is inserted in the third bearing 314, and the hollow shaft cylinder 315 is rotatably connected to the mounting plate 317 through the third bearing 314.

[0043] A rectangular box 31 is provided inside the placement box 1, and a first motor 32 is installed inside the rectangular box 31. A first bearing 33 is installed in a through groove opened on one side of the rectangular box 31, and 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 plug 39 is fixedly connected to one 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 the device can be powered by an ordinary 220V power supply, and can also be powered by other power storage devices. It is suitable for field operation, and the circuit connected to the external power supply of the first motor 32 will not affect the movement of the first motor 32, and the movement of the first motor 32 will not cause the circuit to be broken.

[0044] A buffer pad 38 is arranged in the octagonal groove 36 opened on one side of the circular block 35 away from the first rotating shaft 34, and the buffer pad 38 is fixedly connected to the circular block 35. A guide groove 37 connected to the octagonal groove 36 is opened on one side of the circular block 35 away from the first rotating shaft 34. The first octagonal plug block 39 is inserted into the interior of the circular block 35, and the circular block 35 is slidably connected to the first octagonal plug block 39. The shapes of the octagonal groove 36 and the guide groove 37 can be referred to Figure 7 As shown, the octagonal groove 36 is provided to facilitate the synchronous rotation of the first octagonal plug 39 through the rotation of the circular block 35 when the first octagonal plug 39 is inserted into the interior of the circular block 35. The guide groove 37 is provided to facilitate the insertion of the first octagonal plug 39 into the interior of the circular block 35. The buffer pad 38 is provided to avoid noise generated by collision between the first octagonal plug 39 and the interior of the circular block 35 under the action of elasticity, thereby ensuring the convenience of connection between the circular block 35 and the first octagonal plug 39.

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

[0046] The rectangular box 31 is inserted into the first U-shaped slide groove 41 opened inside the placement box 1, and the rectangular box 31 is slidably connected to the placement box 1. Square sliders 43 are fixedly connected on both sides of the rectangular box 31. The two square sliders 43 are inserted into the second U-shaped slide groove 42 opened inside the placement box 1. The second U-shaped slide groove 42 is connected to the inside of the first U-shaped slide groove 41. The square sliders 43 are slidably connected to the placement box 1, and the sides of the two square sliders 43 away from each other are fixedly connected with cylindrical handles 44.

[0047] A built-in rotating shaft 412 is inserted into the interior of 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 surface of 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 disc 415 is fixedly connected to the interior of the connecting ring 417, and four rectangular sliders 414 in an annular array are fixedly connected to the interior of the first annular disc 415. Four rectangular slide grooves 413 in an annular array are opened on the surface of the built-in rotating shaft 412, and the rectangular slider 414 is inserted in the interior of the rectangular slide groove 413. The rectangular slider 414 and the built-in rotating shaft 412 The second octagonal plug 410 is fixedly connected to one end of the built-in rotating shaft 412. The second octagonal plug 410 has the same shape as the first octagonal plug 39. A second spring 411 is arranged between the second octagonal plug 410 and the first annular disk 415. The built-in rotating shaft 412 is located inside the second spring 411, and the two ends of the second spring 411 are respectively fixedly connected to the second octagonal plug 410 and the first annular disk 415. Under the action of the elastic potential energy of the first spring 49, when the circular block 35 is sleeved on the surface of the first octagonal plug 39, under the action of the elastic potential energy of the first spring 49, there is a suitable force between the circular block 35 and the first octagonal plug 39, so as to ensure that the circular block 35 drives the first When the octagonal plug block 39 is inserted, the circular block 35 and the first octagonal plug block 39 are connected firmly. Under the action of the elastic potential energy of the first spring 49, when the circular block 35 is sleeved on the surface of the second octagonal plug block 410, the circular block 35 drives the second octagonal plug block 410 to move, pushing the limiting plug block 419 to slide out from the inside 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 plug block 410, thereby ensuring that when the circular block 35 is sleeved on the second octagonal plug block 410, the second octagonal plug block 410 and the circular block 35 are firmly connected. Moreover, under the action of the elastic potential energy of the first spring 49, the limiting plug block 419 slides out from the inside of the limiting slot 420, avoiding In order to avoid the problem that the built-in rotating shaft 412 cannot rotate due to the limitation of the hollow shaft tube 315, an inclined section 421 is opened on the upper surface of the rectangular box 31. The setting of the inclined section 421 is convenient for assisting the rectangular box 31 to slide longitudinally when the rectangular box 31 moves upward, thereby avoiding the problem that the rectangular box 31 fails to move to the groove wall of the first U-shaped slide groove 41, causing the movement of the rectangular box 31 to be blocked. When the second octagonal plug block 410 and the first octagonal plug block 39 are not subjected to pressure, the distance between the second octagonal plug block 410 and the mounting plate 317 is greater than the distance between the first octagonal plug block 39 and the mounting plate 317, thereby facilitating the limit plug block 419 to slide out of the limit slot 420 under the squeezing of the circular block 35.

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

[0049] A stabilizing component 5 is provided at one end of the hollow shaft cylinder 315, and 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, and the inner ring of the sixth bearing 53 is inserted with a stabilizing sleeve 52, and the inner ring of the stabilizing sleeve 52 is installed with the fifth bearing 51. The inner ring of the fifth bearing 51 is sleeved on the surface of the hollow shaft cylinder 315, and the stabilizing sleeve 52 is inserted into the inner ring of the sixth bearing 53 and the placement box 1. The box 1 is rotatably connected, and the stable sleeve 52 is rotatably connected through the fifth bearing 51 and the hollow shaft cylinder 315. The interior of the stable sleeve 52 is fixedly connected with the second annular disk 511, and the third circular groove 55 opened in the second annular disk 511 is inserted with an externally threaded sleeve 54. The externally threaded sleeve 54 and the second annular disk 511 are fixedly connected, and a hexagonal insertion rod 59 is inserted in the hexagonal insertion slot 56 opened in the externally threaded sleeve 54. The hexagonal insertion rod 59 and the externally threaded sleeve 54 are slidably connected, and one end of the hexagonal insertion rod 59 is fixedly connected to one end of the built-in rotating shaft 412.

[0050] The surface of the external threaded sleeve 54 is sleeved with a first hexagonal nut 57 and a second hexagonal nut 58, and the first hexagonal nut 57 and the second hexagonal nut 58 are both threadedly connected to the external threaded sleeve 54. The cutting blade 319 is sleeved on the surface of the external threaded sleeve 54, and the cutting blade 319 is located between the first hexagonal nut 57 and the second hexagonal nut 58. The cutting blade 319 is clamped by the first hexagonal nut 57 and the second hexagonal nut 58 under the action of the threads, and when the cutting blade 319 needs to be replaced, the second hexagonal nut 58 is removed from the external threaded sleeve 54. The cutting blade 319 can be replaced by unscrewing the surface. A threaded hole 510 is provided at one end of the hexagonal insert rod 59 away from the limiting ring 418. When the cutting blade 319 needs to be rotated continuously and used in this manner for a long time, a bolt with a washer is screwed into the threaded hole 510, and the end of the washer and the second annular disk 511 are fit together, thereby achieving the effect of further fixing the position of the hexagonal insert rod 59, avoiding the problem of the limiting plug 419 slipping out of the limiting slot 420 due to vibration, and further ensuring the use effect of the cutting device.

[0051] Working principle: During medical rescue, when the cutting device is used to cut some relatively soft materials with a hardness similar to that of plaster that come into contact with human skin, such as some soft plastics, foam materials, etc., the first motor 32 is connected to an external power source, and the first motor 32 is started by a controller mounted on the surface of the placement box 1. The output shaft of the first motor 32 drives the first rotating shaft 34 to rotate, and the rotation of the first rotating shaft 34 drives the circular block 35 to rotate synchronously. Since the first octagonal plug 39 is inserted into the interior of the circular block 35, it can drive the second rotating shaft 310 to rotate under the restriction of the shape of the octagonal groove 36 and the first octagonal plug 39. The rotation of the second rotating shaft 310 drives the rotating disk 312 to rotate, and then drives the toggle shaft 313 to rotate synchronously. During the rotation of the toggle shaft 313, it slides inside the U-shaped plate 316. Due to the position restriction of the hollow shaft cylinder 315, the U-shaped plate 316 moves downward at a certain angle. The hollow shaft cylinder 315 is swung back and forth to achieve the effect of driving the hollow shaft cylinder 315 to reciprocate. Since the limit plug 419 is inserted into the inside of the limit slot 420 during this process, the hollow shaft cylinder 315 drives the limit ring 418 to rotate synchronously through the limit plug 419 during the reciprocating rotation, thereby driving the built-in rotating shaft 412 and the hexagonal plug rod 59 to rotate synchronously. The rotation of the hexagonal plug rod 59 drives the external threaded pipe sleeve 54 to rotate, and then drives the cutting blade 319 to rotate reciprocatingly during the reciprocating rotation of the hollow shaft cylinder 315. It is beneficial for the cutting blade 319 to reciprocate at an appropriate angle when the cutting device is used. During the process, the saw teeth on its surface can cut some relatively soft materials with a hardness similar to that of gypsum. When the cutting blade 319 contacts human skin, the cutting blade 319 rotates at a small angle and does not cause damage to human skin, thereby ensuring the safety of the cutting device during use.

[0052] During the medical rescue process, when the cutting device needs to cut hard materials such as metal and hard wood, a force is applied to the two columnar handles 44, so that the two square sliders 43 slide in the second U-shaped slide grooves 42 at the corresponding positions, and the movement of the square sliders 43 drives the rectangular box 31 to slide inside the first U-shaped slide groove 41. When the rectangular box 31 moves in a direction away from the mounting plate 317, the movement of the rectangular box 31 drives the built-in slider 48 to move synchronously, so that the built-in slider 48 slides into the depth of the rectangular shell 45 continuously. The first spring 49 is continuously squeezed, and the rectangular box 31 slides horizontally inside the first U-shaped slot 41. When the rectangular box 31 moves to fit the slot wall of the first U-shaped slot 41, the square slider 43 just moves to the slot wall of the second U-shaped slot 42, and the cylindrical handle 44 is applied upward, so that the rectangular box 31 can move longitudinally along the slot wall of the first U-shaped slot 41. When the upper surface of the rectangular box 31 fits the slot wall of the first U-shaped slot 41, the force applied to the cylindrical handle 44 is slowly released, and the elastic potential energy of the first spring 49 is increased. Under the action of the first U-shaped slot 41, the rectangular box 31 slides horizontally along the slot wall of the first U-shaped slot 41, and the movement of the rectangular box 31 drives the circular block 35 to move synchronously until the circular block 35 is sleeved on the surface of the second octagonal plug block 410, and under the action of the elastic potential energy of the first spring 49, the circular block 35 applies a force to the second octagonal plug block 410, and the force is applied to the second spring 411, so that the second spring 411 is compressed, and then the second octagonal plug block 410 drives the built-in rotating shaft 412 to slide inside the hollow shaft cylinder 315, and the movement of the built-in rotating shaft 412 The limiting ring 418 is driven to move, and then the limiting plug 419 is driven to slide out from the inside 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 plug 419 slides out from the inside of the limiting slot 420, and the limiting ring 418 drives the limiting plug 419 to move to a suitable position, it stops moving. At this time, there is a suitable force between the circular block 35 and the second octagonal plug 410, and the position of the rectangular box 31 is limited under the elastic potential energy of the first spring 49 and the groove wall of the first U-shaped slide groove 41.

[0053] The first motor 32 is started by a controller mounted on the surface of the placement box 1. The operation of the first motor 32 drives the circular block 35 to rotate, and then drives the second octagonal plug block 410 and the built-in rotating shaft 412 to rotate synchronously. The rotation of the built-in rotating shaft 412 drives the hexagonal plug rod 59 to rotate. The rotation of the hexagonal plug rod 59 drives the external threaded pipe sleeve 54 to rotate, and then drives the cutting blade 319 to rotate. At this time, the cutting blade 319 rotates continuously, which is conducive to switching the cutting blade 319 that rotates reciprocatingly at a fixed angle to continuous rotation. Then, the continuously rotating cutting blade 319 can cut hard materials such as metal and hard wood, thereby increasing the applicable scenarios of the cutting device.

[0054] When it is necessary to switch to the reciprocating rotation of the cutting blade 319 at a small angle again, the rectangular box 31 moves toward the rectangular shell 45. When the circular block 35 moves in the direction away from the second octagonal plug block 410, under the action of the elastic potential energy of the second spring 411, the second octagonal plug block 410 moves synchronously with the circular block 35 for a 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 in the direction close to the hollow shaft cylinder 315. When the limiting plug block 419 is inserted into the inside of 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 plug block 419 is achieved.

[0055] When the limiting plug 419 and the end of the hollow shaft cylinder 315 fit together and 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 plug rod 59 to rotate synchronously, and then drives the built-in rotating shaft 412 and the limiting ring 418 to rotate synchronously, so that the limiting plug 419 slides at the end of the hollow shaft cylinder 315 until the limiting plug 419 slides into the limiting slot 420, thereby realizing the connection between the hollow shaft cylinder 315 and the limiting plug 419. When the limiting plug 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] In the process of rotating the cutting blade 319 to make the limiting plug 419 slide into the limiting slot 420, although the limiting plug 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, when the cutting blade 319 is rotated to make the limiting plug 419 rotate, it may drive the hollow shaft cylinder 315 to rotate synchronously, but when the hollow shaft cylinder 315 rotates, the U-shaped plate 316 is driven to rotate, and the range of rotation of the hollow shaft cylinder 315 is limited under the action of the toggle shaft 313. When the hollow shaft cylinder 315 rotates to the limit, the limiting plug 419 can slide into the limiting slot 420.

[0057] Under the action of the sixth bearing 53, the stabilizing sleeve 52 rotates smoothly. By limiting the positions of the second annular disk 511 and the externally threaded sleeve 54 by the stabilizing sleeve 52, the stability of the rotation of the cutting blade 319 can be ensured in the process of the externally threaded sleeve 54 driving the cutting blade 319 to rotate, thereby ensuring the cutting effect of the cutting device.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rescue cutting device, comprising a placement box (1), the upper surface of the placement box (1) being fixedly connected to an upper cover (2) by bolts; Features: A reciprocating cutting assembly (3) is arranged inside the placement box (1), and the reciprocating cutting assembly (3) comprises a second rotating shaft (310), a rotating disk (312), a toggle shaft (313), a hollow shaft cylinder (315) and a U-shaped plate (316). A second rotating shaft (310) is arranged inside the placement box (1), one end of the second rotating shaft (310) is fixedly connected to the rotating disk (312), a surface of the rotating disk (312) away from the second rotating shaft (310) is fixedly connected to the toggle shaft (313), a hollow shaft cylinder (315) is arranged above the second rotating shaft (310), a surface of the hollow shaft cylinder (315) is fixedly connected to the U-shaped plate (316), the toggle shaft (313) is inserted inside the U-shaped plate (316), and the U-shaped plate (316) and the toggle shaft (313) are slidably connected; The surface of the placement box (1) is provided with a switching cutting component (4), and one end of the hollow shaft cylinder (315) is provided with a stabilizing component (5).

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 mounting plate (317) is fixedly connected to the interior of the placement box (1); the second bearing (311) is installed in a first circular groove (318) provided in the interior of the mounting plate (317); the second rotating shaft (310) is inserted in the interior of the second bearing (311); the second rotating shaft (310) is rotatably connected to the mounting plate (317) via the second bearing (311); the third bearing (314) is installed in a second circular groove (320) provided in the interior of the mounting plate (317); the hollow shaft cylinder (315) is inserted in the interior of the third bearing (314); the hollow shaft cylinder (315) is rotatably connected to the mounting plate (317) via the third bearing (314).

3. The rescue cutting device according to claim 1, characterized in that: The reciprocating cutting assembly (3) further comprises 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 block (39). The placement box (1) is provided with a rectangular box (31), the first motor (32) is installed inside the rectangular box (31), a first bearing (33) is installed in a through slot provided 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) via the first bearing (33), one end of the first rotating shaft (34) is fixedly connected to the circular block (35), the other end of the first rotating shaft (34) is fixedly connected to the end of the output shaft of the first motor (32), one end of the second rotating shaft (310) away from the rotating disk (312) is fixedly connected to the first octagonal plug block (39), and a cutting blade (319) is provided on one side of the placement box (1).

4. The rescue cutting device according to claim 3, characterized in that: The reciprocating cutting assembly (3) further comprises a buffer pad (38), wherein the buffer pad (38) is arranged in an octagonal groove (36) provided on a side of the circular block (35) away from the first rotating shaft (34), wherein the buffer pad (38) and the circular block (35) are fixedly connected, wherein a guide groove (37) connected to the octagonal groove (36) is provided on a side of the circular block (35) away from the first rotating shaft (34), wherein the first octagonal plug block (39) is inserted into the interior of the circular block (35), and wherein the circular block (35) is slidably connected to the first octagonal plug block (39).

5. The rescue cutting device according to claim 3, characterized in that: The switching cutting assembly (4) comprises a rectangular shell (45), a roller (47), a built-in slider (48) and a first spring (49); a side of the rectangular box (31) away from the mounting plate (317) is fixedly connected with the built-in slider (48); a rectangular shell (45) is sleeved on the surface of the built-in slider (48); a first spring (49) is arranged in a space formed by the rectangular shell (45) and the built-in slider (48); two ends of the first spring (49) are respectively fixedly connected to the built-in slider (48) and the rectangular shell (45); the built-in slider (48) and the rectangular shell (45) are slidably connected; a roller (47) is installed in a longitudinal square groove (46) provided on a side of the rectangular shell (45) away from the built-in slider (48); and the roller (47) is rotatably connected to the rectangular shell (45).

6. The rescue cutting device according to claim 3, characterized in that: The switching cutting assembly (4) further comprises a square slider (43) and a cylindrical handle (44); the rectangular box (31) is inserted into a first U-shaped slide groove (41) provided inside the placement box (1); the rectangular box (31) is slidably connected to the placement box (1); two sides of the rectangular box (31) are respectively fixedly connected with square sliders (43); two square sliders (43) are inserted into a second U-shaped slide groove (42) provided inside the placement box (1); the second U-shaped slide groove (42) is connected to the inside of the first U-shaped slide groove (41); the square slider (43) is slidably connected to the placement box (1); and the two sides of the two square sliders (43) which are away from each other are respectively fixedly connected with cylindrical handles (44).

7. The rescue cutting device according to claim 3, characterized in that: The switching cutting assembly (4) further comprises a second octagonal plug block (410), a second spring (411), a built-in rotating shaft (412), a rectangular slider (414), a first annular disc (415), a fourth bearing (416) and a connecting ring (417); the built-in rotating shaft (412) is inserted into the hollow shaft cylinder (315); the hollow shaft cylinder (315) and the built-in 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 a connecting ring (417); the connecting ring (417) is rotatably connected to the hollow shaft cylinder (315) via the fourth bearing (416); the first annular disc (415) is fixedly connected to the inside of the connecting ring (417); the first annular disc (415) is fixedly connected to the inside of four rectangular bearings (416) in an annular array; The inner rotating shaft (412) is provided with a rectangular slide groove (413) in a circular array on its surface. The rectangular slide groove (414) is inserted into the rectangular slide groove (413). The rectangular slide groove (414) is slidably connected to the inner rotating shaft (412). One end of the inner rotating shaft (412) is fixedly connected with a second octagonal plug block (410). The second octagonal plug block (410) has the same shape as the first octagonal plug block (39). A second spring (411) is provided between the second octagonal plug block (410) and the first annular disc (415). The inner rotating shaft (412) is located inside the second spring (411). The two ends of the second spring (411) are respectively fixedly connected to the second octagonal plug block (410) and the first annular disc (415). An inclined cut surface (421) is provided on the upper surface of the rectangular box (31).

8. The rescue cutting device according to claim 7, characterized in that: The switching cutting assembly (4) further comprises a limiting ring (418) and a limiting plug (419); the surface of the built-in rotating shaft (412) is fixedly sleeved with a limiting ring (418); the hollow shaft cylinder (315) is located between the limiting ring (418) and the first annular disc (415); one side of the limiting ring (418) close to the hollow shaft cylinder (315) is fixedly connected with six limiting plugs (419); one side of the hollow shaft cylinder (315) close to the limiting ring (418) is provided with four limiting slots (420); the limiting plugs (419) are inserted into the limiting slots (420).

9. The rescue cutting device according to claim 3, characterized in that: The stabilizing component (5) comprises a fifth bearing (51), a stabilizing sleeve (52), a sixth bearing (53), an externally threaded sleeve (54) and a hexagonal insert rod (59); the sixth bearing (53) is installed in a fourth circular groove (512) opened on one side of the placement box (1); a stabilizing sleeve (52) is inserted into the inner ring of the sixth bearing (53); the fifth bearing (51) is installed in the inner ring of the stabilizing sleeve (52); the inner ring of the fifth bearing (51) is sleeved on the surface of the hollow shaft cylinder (315); the stabilizing sleeve (52) is rotatably connected to the placement box (1) through the sixth bearing (53); the stabilizing sleeve (52) The stabilizing sleeve (52) is rotatably connected to the hollow shaft cylinder (315), the interior of which is fixedly connected to a second annular disc (511), a third circular groove (55) provided inside the second annular disc (511) is provided with an externally threaded sleeve (54), the externally threaded sleeve (54) and the second annular disc (511) are fixedly connected, a hexagonal insertion rod (59) is provided in a hexagonal insertion slot (56) provided inside the externally threaded sleeve (54), the hexagonal insertion rod (59) and the externally threaded sleeve (54) are slidably connected, and one end of the hexagonal insertion rod (59) is fixedly connected to one end of the built-in rotating shaft (412).

10. The rescue cutting device according to claim 9, characterized in that: The stabilizing component (5) further comprises a first hexagonal nut (57) and a second hexagonal nut (58); the first hexagonal nut (57) and the second hexagonal nut (58) are sleeved on the surface of the externally threaded sleeve (54); the first hexagonal nut (57) and the second hexagonal nut (58) are both threadedly connected to 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 a threaded hole (510) is provided at one end of the hexagonal insert rod (59) away from the limiting ring (418).

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