A standard model teaching aid for demonstration and assessment of first aid for spinal injury

Abstract

This invention belongs to the technical field of teaching demonstration equipment, specifically disclosing a standard model teaching aid for demonstrating and assessing first aid for spinal injuries. It includes a torso, two shoulders, a waist, and hips. The shoulders are internally equipped with an anti-slip mounting mechanism, which secures the shoulders to the left and right sides of the torso. This anti-slip mounting mechanism prevents the shoulders from detaching from the torso. One end of the waist near the shoulders is rotatably connected to the torso's waist and abdomen. The waist is internally equipped with a replacement mechanism to prevent the hips from detaching and facilitates replacement. The anti-slip mounting mechanism and the replacement mechanism ensure that the elastically openable ball joint is supported after installation, preventing the arms or lower body from detaching, thus not affecting teaching and reducing wear and tear in case of detachment, thereby extending the lifespan of the standard model teaching aid.

Description

Technical Field

[0001] This invention belongs to the technical field of teaching demonstration equipment, and specifically discloses a standard model teaching aid for demonstrating and assessing first aid for spinal injury. Background Technology

[0002] This standard model for spinal injury first aid demonstration and assessment adopts an anthropomorphic, biomimetic shape, roughly matching the proportions of an adult torso. The head, limbs, and torso are detachably connected. In terms of appearance, the surface simulates human skin texture, with jointed structures at the hips, shoulders, and neck, and natural curves to facilitate identification of the corresponding surface location of spinal injuries. Mechanically, the torso contains a segmented, articulated spinal skeleton, and the limbs and head connect to the torso via ball-and-pin or snap-fit ​​interfaces, enabling tool-less rapid assembly and disassembly. The joints primarily utilize elastic materials or simple damping structures to simulate basic flexion and extension movements. The outer shell uses a mesh-like wiring to represent surface tension. The overall structure primarily serves for intuitive demonstration and basic handling training.

[0003] In existing technology, standard model teaching aids for spinal injury first aid demonstration and assessment generally use elastic openable ball joints at the joints of the arms and lower body to facilitate the assembly and disassembly of the arms and lower body. However, because they are elastic openable ball joints, they are prone to falling off during transportation under the weight of the arms or lower body, which affects teaching. Moreover, with the increase of the number of times they fall off, they are prone to wear and deformation, thereby reducing the service life of the standard model teaching aid. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a standard model teaching aid for demonstration and assessment of spinal injury first aid, so as to solve the problem that the standard model teaching aid for demonstration and assessment of spinal injury first aid in the prior art is easy to fall off, which affects teaching and reduces the service life of the teaching aid.

[0005] To achieve the above objectives, this invention provides a standard model teaching aid for demonstration and assessment of first aid for spinal injury, comprising a torso, two shoulders, a waist, and hips. The shoulders are internally equipped with an anti-slip mounting mechanism, which is used to install the two shoulders on the left and right sides of the torso, respectively. The anti-slip mounting mechanism prevents the shoulders from detaching from the torso. The waist is rotatably connected to the torso's waist and abdomen at one end near the shoulders. The waist is internally equipped with a replacement mechanism to prevent the hips from detaching and to facilitate replacement. The hip is rotatably connected to the waist at one end away from the torso. A resilience simulation mechanism is provided on the back of the torso to simulate human resilience. Two legs are rotatably connected to the hips at one end away from the torso, and a head is rotatably connected to the torso at one end away from the waist.

[0006] In the above technical solution, preferably, the anti-detachment installation mechanism includes a main column, which is fixedly connected to the inside of the shoulder. A rotating column is rotatably connected inside the main column. A storage compartment is opened inside the bottom end of the main column, and a torsion spring is installed inside the storage compartment. Storage compartments are opened at the middle and top of the inside of the main column. Elastic opening ball heads are fixedly connected to both ends of the shoulder. The outer side of one of the elastic opening ball heads is located on one side of the torso, and the outer side of the other elastic opening ball head is located on the outside. A fixing cylinder is fixedly connected to both ends of the shoulder. A return spring is installed inside the fixing cylinder. A limit plate is slidably connected inside the return spring. An anti-gathering column is fixedly connected to the end of the limit plate away from the return spring. A pull rope is fixedly connected to the end of the limit plate away from the anti-gathering column. The ends of the two pull ropes away from the limit plate are fixedly connected to the outside of the rotating column. One end of the torsion spring is fixedly connected to the inner wall of the storage compartment, and the other end of the torsion spring is fixedly connected to the bottom end of the rotating column.

[0007] In the above technical solution, preferably, the replacement mechanism includes a mounting column. One end of the mounting column is externally disposed inside the bottom end of the waist near the hip. An elastically opening ball joint is fixedly connected to the end of the mounting column away from the anti-slip mounting mechanism. The outer surface of the elastically opening ball joint is disposed inside the hip. An mounting groove is provided inside the mounting column. A limiting plate is slidably connected inside the mounting groove. An anti-gathering column is fixedly connected to the end of the limiting plate near the elastically opening ball joint. A push spring is provided inside the mounting groove. A pull rope is fixedly connected to the middle of the limiting plate. A rope-retracting sleeve is rotatably connected inside the mounting column. The end of the pull rope away from the limiting plate is fixedly connected to... The cord reel is attached to the outside of the cord reel. The cord reel has a toothed groove inside. A pin is provided inside the waist section. A toothed ring is fixedly connected to the outside of the pin. The toothed groove and the toothed ring are meshed. A receiving groove is provided inside the mounting post on one side of the cord reel. A receiving groove is provided inside the pin. A push spring is provided inside the receiving groove. A limit block is slidably connected inside the receiving groove. A connecting rod is rotatably connected to the end of the limit block away from the push spring. A chuck is fixedly connected to the bottom of the pin. A limit shaft is fixedly connected to the bottom of the connecting rod. A threaded post is rotatably connected to the outside of the limit shaft. A turning handle is fixedly connected to the top of the pin.

[0008] In the above technical solution, preferably, the toughness simulation mechanism includes multiple fixing boxes, which are respectively fixedly connected to the bottom of the torso and the hip. The fixing boxes have a sliding groove inside, and a slider is engaged inside the sliding groove. Multiple locking plates are fixedly connected to the bottom of the slider, and two of the locking plates are fitted with locking rings on their outer sides. An elastic band is fixedly connected between the two locking rings.

[0009] In the above technical solution, preferably, the end of the fixed cylinder away from the anti-aggregation column is fixedly connected to a conduit, and the ends of the two conduits away from the fixed cylinder are both fixedly connected to the outside of the main column.

[0010] In the above technical solution, preferably, the pull rope is slidably connected inside the conduit, and the ends of the two pull ropes away from the limiting plate are respectively located inside the two storage compartments.

[0011] In the above technical solution, preferably, the top of the rotating column is fixedly connected to a torsion handle, the outside of the anti-gathering column one penetrates the inside of the shoulder, and the anti-gathering column one is located in the middle of the elastic opening ball head one.

[0012] In the above technical solution, preferably, one end of the push spring is fixedly connected to the inside of the receiving groove, and the other end of the push spring is fixedly connected to the top of the limiting block.

[0013] In the above technical solution, preferably, one end of the push spring is fixedly connected to the inner wall of the mounting groove, and the other end of the push spring is fixedly connected to the end of the limiting plate away from the second anti-aggregation column.

[0014] In the above technical solution, preferably, the connecting rod passes through the middle of the chuck, and the chuck and the threaded post are engaged.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention, through the setting of an anti-detachment installation mechanism and a replacement mechanism, enables the elastic open ball head to be supported after installation, thereby preventing deformation of the elastic open ball head, preventing the arm or lower body from falling off, thus not affecting teaching, reducing wear and tear caused by detachment, and improving the service life of the standard model teaching aid.

[0017] 2. This invention allows for easy replacement of the mounting column and the second elastically opening ball head by changing the mechanism settings. This makes it convenient to replace the mounting column and the second elastically opening ball head when the weight of the hip and legs is too great and damages them during transport, thus avoiding the need to replace the entire torso and reducing economic losses. Attached Figure Description

[0018] Figure 1 The three-dimensional representation of the present invention Figure 1 ;

[0019] Figure 2 The three-dimensional representation of the present invention Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the elastically opening ball head of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the shoulder section of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the main column of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the second elastically opening ball head of the present invention;

[0024] Figure 7 This is a schematic diagram showing the installation position of the mounting column of the present invention;

[0025] Figure 8 This is a schematic diagram of the internal structure of the mounting column of the present invention;

[0026] Figure 9 This is a schematic diagram of the tooth groove structure of the present invention;

[0027] Figure 10 This is a schematic diagram of the internal structure of the pin of the present invention;

[0028] Figure 11 This is a schematic diagram of the toughness simulation mechanism of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of the fixing box of the present invention.

[0030] In the diagram: 1. Torso; 2. Shoulder; 3. Anti-detachment mounting mechanism; 301. Main column; 302. Rotating column; 303. Storage compartment; 304. Torsion spring; 305. Storage compartment; 306. Torsion handle; 307. Fixing cylinder; 308. Return spring; 309. Limiting plate; 310. Anti-gathering column one; 311. Guide tube; 312. Pull rope; 313. Elastic opening ball head one; 4. Replacement mechanism; 401. Mounting column; 402. Elastic opening ball head two; 403. Mounting groove; 404. Limiting plate; 405. Anti-gathering column two; 406. Push spring 407. Spring; 408. Pulling rope; 409. Rope loop; 410. Toothed groove; 411. Pin; 412. Toothed ring; 413. Receiving groove; 414. Pushing spring; 415. Limiting block; 416. Connecting rod; 417. Chuck; 418. Limiting shaft; 419. Threaded post; 420. Tightening handle; 5. Hip; 6. Leg; 7. Arm; 8. Resilience simulation mechanism; 801. Fixing box; 802. Slide groove; 803. Slider; 804. Clamping plate; 805. Clamping ring; 806. Elastic band; 9. Head; 10. Waist. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0033] like Figures 1-12 The standard model teaching aid for demonstration and assessment of spinal injury first aid shown includes a torso 1, two shoulders 2, a waist 10, and a hip 5. The shoulders 2 are equipped with an anti-slip mounting mechanism 3. The two shoulders 2 are respectively mounted on the left and right sides of the torso 1 through the anti-slip mounting mechanism 3. The anti-slip mounting mechanism 3 is used to prevent the shoulders 2 from falling off the torso 1. The end of the waist 10 near the shoulders 2 is rotatably connected to the waist and abdomen of the torso 1. The waist 10 is equipped with a replacement mechanism 4. The replacement mechanism 4 is used to prevent the hip 5 from falling off and to facilitate replacement. The end of the hip 5 near the torso 1 is rotatably connected to the end of the waist 10 away from the torso 1. The back of the torso 1 is equipped with a resilience simulation mechanism 8. The resilience simulation mechanism 8 is used to simulate human resilience. The end of the hip 5 away from the torso 1 is rotatably connected to two legs 6. The end of the torso 1 away from the waist 10 is rotatably connected to a head 9.

[0034] The anti-slip installation mechanism 3 includes a main column 301, which provides the installation position. The main column 301 is fixedly connected to the inside of the shoulder 2. A rotating column 302 is rotatably connected inside the main column 301. A storage compartment 303 is opened inside the bottom end of the main column 301, which provides the installation position. A torsion spring 304 is installed inside the storage compartment 303. When the rotating column 302 rotates to wind up the pull rope 312, it can compress the torsion spring 304. When the rotating column 302 is released, it can be driven to rotate by the reaction force of the torsion spring 304. Storage compartments 305 are opened at the middle and top of the main column 301, which provide space for the winding pull rope 312. Both ends of the shoulder 2 have storage compartments 305. A flexible, openable ball joint 313 is fixedly connected. This ball joint 313 is deformable, allowing for easy attachment and detachment of the shoulder 2 to the torso 1, and also for easy attachment and detachment of the arm 7 to the shoulder 2. One of the flexible, openable ball joints 313 is externally located on one side of the torso 1, while the other is externally located on the arm 7. Fixed cylinders 307 are fixedly connected to the interior of both ends of the shoulder 2, providing the mounting position. A return spring 308 is installed inside the fixed cylinder 307, and a limit plate 309 is slidably connected inside the return spring 308. The return spring 308 can push the limit plate 309 to return to its original position. A protective device is fixedly connected to the end of the limit plate 309 away from the return spring 308. The anti-convergence column 310, after being inserted into the middle of the elastic opening ball head 313, can abut against the middle of the elastic opening ball head 313, thereby preventing the elastic opening ball head 313 from deforming and thus preventing it from detaching from the torso 1 or arm 7. A pull rope 312 is fixedly connected to the end of the limiting disc 309 away from the anti-convergence column 310. The pull rope 312 can pull the limiting disc 309 to compress the reset spring 308. The ends of both pull ropes 312 away from the limiting disc 309 are fixedly connected to the outside of the rotating column 302. One end of the torsion spring 304 is fixedly connected to the inner wall of the storage compartment 303, and the other end of the torsion spring 304 is fixedly connected to... At the bottom outer end of the rotating column 302, a guide tube 311 is fixedly connected to the end of the fixed cylinder 307 away from the anti-gathering column 310. The guide tube 311 can protect the pull rope 312 and reduce the friction of the pull rope 312 movement, and can also guide the pull rope 312. The ends of the two guide tubes 311 away from the fixed cylinder 307 are fixedly connected to the outside of the main column 301. The pull rope 312 is slidably connected to the inside of the guide tube 311. The ends of the two pull ropes 312 away from the limiting plate 309 are respectively located inside the two storage compartments 305. A torsion handle 306 is fixedly connected to the top of the rotating column 302. The outside of the anti-gathering column 310 penetrates the inside of the shoulder 2. The anti-gathering column 310 is located in the middle of the elastic opening ball head 313.

[0035] When installing the shoulder piece 2 and arm piece 7, first turn the torsion handle 306, which will cause the rotating column 302 to rotate. When the rotating column 302 rotates, it will twist the torsion spring 304, and at the same time, it will wrap the pull rope 312 around the outside of the rotating column 302 and store it inside the storage compartment 305. When the rotating column 302 wraps the pull rope 312, it will cause the limiting plate 309 to slide inside the fixed cylinder 307 and compress the return spring 308. At the same time, it will cause the anti-aggregation column 310 to retract into the fixed cylinder 307, and then the anti-aggregation column 310 will move away from the middle of the elastic opening ball head 313. At this time, the elastic opening ball head 313 is not blocked by the anti-aggregation column 310, so it is easy to deform, and then one of the elastic opening ball heads can be... 313 is inserted into the interior of the torso 1, and the arm 7 can also be inserted into the exterior of another elastically opening ball head 313. After the arm 7 is mounted on the shoulder 2 and the shoulder 2 is mounted on the torso 1, the torsion handle 306 is released. At this time, under the reaction force of the return spring 308, the limiting plate 309 can be pushed to move towards the elastically opening ball head 313, and the anti-convergence column 310 can be moved to the middle of the elastically opening ball head 313. At this time, under the obstruction of the anti-convergence column 310, the elastically opening ball head 313 will not deform, thereby preventing the elastically opening ball head 313 from being pulled out of the interior of the torso 1 or the arm 7, thus playing an anti-dislodgement role and preventing the shoulder 2 or the arm 7 from falling off during transportation or during first aid demonstrations.

[0036] The replacement mechanism 4 includes a mounting post 401, which provides an installation position. One end of the mounting post 401 is externally located inside the bottom end of the waist 10 near the hip 5. The end of the mounting post 401 away from the anti-detachment mounting mechanism 3 is fixedly connected to a second elastically opening ball joint 402. The mounting post 401 can be inserted into the waist 10, thus facilitating the installation of the second elastically opening ball joint 402 on the waist 10. The external part of the second elastically opening ball joint 402 is located inside the hip 5. An installation groove 403 is provided inside the mounting post 401, providing the installation position. A limiting plate 404 is slidably connected inside the installation groove 403, serving a limiting function. The limiting plate 404 is located near the second elastically opening ball joint 402. One end of the mounting post 401 is fixedly connected to an anti-aggregation post 405. After the anti-aggregation post 405 is inserted into the middle of the elastically opening ball head 402, it prevents the elastically opening ball head 402 from deforming. Furthermore, when the elastically opening ball head 402 is inserted into the crotch 5, it prevents the elastically opening ball head 402 from dislodging from the crotch 5. A push spring 406 is installed inside the mounting groove 403. The push spring 406 can push the limiting plate 404 to reset. A pull rope 407 is fixedly connected to the middle of the limiting plate 404. The pull rope 407 can pull the limiting plate 404 towards the push spring 406 and compress the push spring 406. A rope-retracting sleeve 408 is rotatably connected inside the mounting post 401. The pull rope 407 moves away from the limiting plate 404. One end of the mounting post 401 is fixedly connected to the outside of the rope take-up sleeve 408. The rope take-up sleeve 408 has a toothed groove 409 inside. A pin 410 is installed inside the waist section 10. A toothed ring 411 is fixedly connected to the outside of the pin 410. The pin 410 and the toothed ring 411 can be inserted into the toothed groove 409 inside the rope take-up sleeve 408, thus allowing the mounting post 401 to be installed inside the waist section 10. The toothed groove 409 and the toothed ring 411 are meshed. When the pin 410 drives the toothed ring 411 to rotate, it can drive the rope take-up sleeve 408 to rotate, thereby winding and pulling the rope 407. A receiving groove 412 is provided inside the mounting post 401 on one side of the rope take-up sleeve 408. The receiving groove 412 provides space for winding and pulling the rope 407. The inside of the pin 410... An installation slot 413 is provided, offering installation space. A push spring 414 is installed inside the installation slot 413. A limiting block 415 is slidably connected inside the installation slot 413, serving a limiting function. A connecting rod 416 is rotatably connected to the end of the limiting block 415 away from the push spring 414, serving a connecting function. A chuck 417 is fixedly connected to the bottom of the pin 410. A limiting shaft 418 is fixedly connected to the bottom of the connecting rod 416. A threaded post 419 is rotatably connected to the outside of the limiting shaft 418. When the chuck 417 engages with the top of the threaded post 419, it can drive the threaded post 419 to rotate, thereby allowing the threaded post 419 to be screwed into or out of the waist section 10.A turning handle 420 is fixedly connected to the top of the pin 410, which can drive the pin 410 to rotate. One end of the push spring 414 is fixedly connected to the inside of the receiving groove 413, and the other end of the push spring 414 is fixedly connected to the top of the limiting block 415. One end of the push spring 406 is fixedly connected to the inner wall of the mounting groove 403, and the other end of the push spring 406 is fixedly connected to the end of the limiting plate 404 away from the anti-aggregation post 405. The connecting rod 416 passes through the middle of the chuck 417, and the chuck 417 and the threaded post 419 are engaged.

[0037] When installing the flexible opening ball joint 402, first insert the mounting post 401 into the inside of the waist 10 and align the rope take-up sleeve 408 with the hole to be inserted into the pin 410. Then insert the pin 410 and the toothed ring 411 into the inside of the waist 10, while the threaded post 419 passes through the inside of the rope take-up sleeve 408, so that the toothed ring 411 is inserted into the toothed groove 409 inside the rope take-up sleeve 408. At this time, press the turning handle 420 down to press the pin 410 and the toothed ring 411 down, which will drive the chuck 417 to move down and engage with the top of the threaded post 419. At this time, as the pin 410 descends, it can also compress the push... The spring 414 rotates, which in turn rotates the handle 420, causing the pin 410, gear ring 411, and chuck 417 to rotate. This, in turn, causes the threaded pin 419 to rotate and screw into the waist 10. When the gear ring 411 rotates, it also causes the rope winding sleeve 408 to rotate, thereby winding up the rope 407. By winding up the rope 407, the limiting plate 404 moves towards the rope winding sleeve 408, which in turn moves the anti-aggregation post 405 towards the rope winding sleeve 408. This allows the anti-aggregation post 405 to move out of the middle of the elastically opening ball head 402. At this time, the elastically opening ball head 402... The ball head 402 can be easily deformed, allowing the inside of the hip 5 to be inserted into the outside of the elastically opening ball head 402. When the crank handle 420 is released, the reaction force of the push spring 414 pushes the pin 410 upwards, thereby moving the pin 410 and the gear ring 411 upwards, which in turn moves the chuck 417 upwards, separating the chuck 417 from the top of the threaded post 419. At this point, rotating the pin 410 only rotates the gear ring 411, not the threaded post 419. Therefore, when the crank handle 420 is not pressed, only the rope loop 40 can be rotated. Rotating the 8th section allows only the pull rope 407 to be wound up, facilitating the disassembly of the hip 5 and preventing it from detaching from the elastic open ball head 402. Since the hip 5 is connected to the lower half of the standard model teaching aid, improper handling during transport or demonstration can cause the weight of the lower half of the teaching aid to concentrate on the mounting post 401, which can easily lead to the breakage and damage of the mounting post 401. Therefore, after pulling the pin 410, toothed ring 411, and threaded post 419 out of the inside of the rope winding sleeve 408, the damaged mounting post 401 can be easily pulled out of the replacement mechanism 4, making it easy to replace with a new mounting post 401.

[0038] The resilience simulation mechanism 8 includes multiple mounting boxes 801, which provide installation positions. The multiple mounting boxes 801 are respectively fixedly connected to the bottom of the torso 1 and the hip 5. A sliding groove 802 is provided inside each mounting box 801, and a slider 803 is engaged inside the sliding groove 802. The slider 803 can be inserted into the sliding groove 802. Multiple retaining plates 804 are fixedly connected to the bottom of the slider 803. Two retaining plates 804 are fitted with retaining rings 805 on their outer surfaces. An elastic band 806 is fixedly connected between the two retaining rings 805, allowing the retaining plates 804 to easily engage with the retaining rings 805. This allows for easy installation of the elastic band 806. When adding the elastic band 806, first insert the slider 803 into the groove 802, so that the clamping plate 804 can be installed on the back of the hip 5 and the torso 1 respectively. Then, put the clamping rings 805 at both ends of the elastic band 806 onto the clamping plate 804 on the back of the torso 1 and the hip 5 respectively. At this time, the elasticity of the elastic band 806 can be used to increase the flexibility of the torso 1 and the waist 10 when rotating and bending. It can also increase the flexibility of the waist 10 and the hip 5 when rotating, and the flexibility can be increased as the number of elastic bands 806 increases.

[0039] Working principle: When installing the shoulder piece 2 and arm piece 7, first turn the torsion handle 306, which will drive the rotating column 302 to rotate. When the rotating column 302 rotates, it will twist the torsion spring 304, and at the same time, it will wrap the pull rope 312 around the outside of the rotating column 302 and store it inside the storage compartment 305. When the rotating column 302 wraps the pull rope 312, it will drive the limiting plate 309 to slide inside the fixed cylinder 307 and compress the return spring 308. At the same time, it will drive the anti-gathering column 310 to retract into the fixed cylinder 307, and then the anti-gathering column 310 will move away from the middle of the elastic opening ball head 313. At this time, the elastic opening ball head 313 is not blocked by the anti-gathering column 310, so it is easy to deform, and then one of the elastic opening balls will be able to deform. Ball head 313 is inserted into the interior of torso 1, and arm 7 can also be inserted into the exterior of another elastically opening ball head 313. When arm 7 is mounted on shoulder 2 and shoulder 2 is mounted on torso 1, the twisting handle 306 is released. At this time, under the reaction force of return spring 308, the limiting plate 309 can be pushed to move towards elastically opening ball head 313, and the anti-convergence column 310 can be moved to the middle of elastically opening ball head 313. At this time, under the obstruction of anti-convergence column 310, elastically opening ball head 313 will not deform, thereby preventing elastically opening ball head 313 from being pulled out of the interior of torso 1 or arm 7, thus playing an anti-dislodgement role and avoiding the situation where shoulder 2 or arm 7 falls off during transportation or during first aid demonstration.

[0040] When installing the flexible opening ball joint 402, first insert the mounting post 401 into the inside of the waist 10 and align the rope take-up sleeve 408 with the hole to be inserted into the pin 410. Then insert the pin 410 and the toothed ring 411 into the inside of the waist 10, while the threaded post 419 passes through the inside of the rope take-up sleeve 408, so that the toothed ring 411 is inserted into the toothed groove 409 inside the rope take-up sleeve 408. At this time, press the turning handle 420 down to press the pin 410 and the toothed ring 411 down, which will drive the chuck 417 to move down and engage with the top of the threaded post 419. At this time, as the pin 410 descends, it can also compress the push... The spring 414 rotates, which in turn rotates the handle 420, causing the pin 410, gear ring 411, and chuck 417 to rotate. This, in turn, causes the threaded pin 419 to rotate and screw into the waist 10. When the gear ring 411 rotates, it also causes the rope winding sleeve 408 to rotate, thereby winding up the rope 407. By winding up the rope 407, the limiting plate 404 moves towards the rope winding sleeve 408, which in turn moves the anti-aggregation post 405 towards the rope winding sleeve 408. This allows the anti-aggregation post 405 to move out of the middle of the elastically opening ball head 402. At this time, the elastically opening ball head 402... The ball head 402 can be easily deformed, allowing the inside of the hip 5 to be inserted into the outside of the elastically opening ball head 402. When the crank handle 420 is released, the reaction force of the push spring 414 pushes the pin 410 upwards, thereby moving the pin 410 and the gear ring 411 upwards, which in turn moves the chuck 417 upwards, separating the chuck 417 from the top of the threaded post 419. At this point, rotating the pin 410 only rotates the gear ring 411, not the threaded post 419. Therefore, when the crank handle 420 is not pressed, only the rope loop 40 can be rotated. 8 rotates, so that only the pull rope 407 can be wound up, which makes it easy to disassemble the hip 5 and prevents the hip 5 from detaching from the outside of the elastic open ball head 402. Since the hip 5 is connected to the lower half of the standard model teaching aid, improper operation during handling or demonstration will cause the weight of the lower half of the teaching aid to be concentrated on the mounting post 401, which may easily cause the mounting post 401 to break and be damaged. Therefore, after pulling the pin 410, toothed ring 411, and threaded post 419 out of the inside of the rope winding sleeve 408, the damaged mounting post 401 can be easily pulled out of the inside of the replacement mechanism 4, which makes it easy to replace the new mounting post 401.

[0041] When adding elastic bands 806, first insert slider 803 into the groove 802 so that clamping plates 804 can be installed on the back of hip 5 and torso 1 respectively. Then, clamping rings 805 at both ends of elastic band 806 are respectively put onto clamping plates 804 on the back of torso 1 and hip 5. At this time, the elasticity of elastic band 806 can be used to increase the flexibility of torso 1 and waist 10 when rotating and bending. It can also increase the flexibility of waist 10 and hip 5 when rotating. The flexibility can be increased as the number of elastic bands 806 increases.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A standard model teaching aid for demonstration and assessment of first aid for spinal injury, comprising a torso (1), two shoulders (2), a waist (10), and a hip (5), characterized in that, The shoulder (2) is provided with an anti-slip installation mechanism (3). The two shoulders (2) are respectively installed on the left and right sides of the torso (1) through the anti-slip installation mechanism (3). The anti-slip installation mechanism (3) is used to prevent the shoulders (2) from falling off the torso (1). The waist (10) is rotatably connected to the waist and abdomen of the torso (1) at one end near the shoulder (2). The waist (10) is provided with a replacement mechanism (4). The replacement mechanism (4) is used to prevent the hip (5) from falling off and to facilitate its replacement. The hip (5) is rotatably connected to the waist (1) at one end away from the torso (1). The back of the torso (1) is provided with a toughness simulation mechanism (8). The toughness simulation mechanism (8) is used to simulate human toughness. The hip (5) is rotatably connected to two legs (6) at one end away from the torso (1). The torso (1) is rotatably connected to the head (9) at one end away from the waist (10).

2. The standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 1, characterized in that, The anti-detachment installation mechanism (3) includes a main column (301), which is fixedly connected to the inside of the shoulder (2). A rotating column (302) is rotatably connected inside the main column (301). A storage compartment (303) is opened inside the bottom end of the main column (301). A torsion spring (304) is installed inside the storage compartment (303). Storage compartments (305) are opened at the middle and top of the inside of the main column (301). Both ends of the shoulder (2) are fixedly connected to elastic opening ball heads (313). The outer side of one of the elastic opening ball heads (313) is located on one side of the torso (1), and the outer side of the other elastic opening ball head (313) is provided with an arm (7). The two ends of the shoulder (2) are fixedly connected to the shoulder (2). A fixed cylinder (307) is fixedly connected inside each end. A return spring (308) is provided inside the fixed cylinder (307). A limit plate (309) is slidably connected inside the return spring (308). An anti-gathering column (310) is fixedly connected to one end of the limit plate (309) away from the return spring (308). A pull rope (312) is fixedly connected to one end of the limit plate (309) away from the anti-gathering column (310). The ends of the two pull ropes (312) away from the limit plate (309) are fixedly connected to the outside of the rotating column (302). One end of the torsion spring (304) is fixedly connected to the inner wall of the storage compartment (303). The other end of the torsion spring (304) is fixedly connected to the bottom outside of the rotating column (302).

3. The standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 1, characterized in that, The replacement mechanism (4) includes a mounting post (401). One end of the mounting post (401) is externally located inside the bottom end of the waist (10) near the hip (5). The end of the mounting post (401) away from the anti-detachment mounting mechanism (3) is fixedly connected to an elastically opening ball head (402). The outer side of the elastically opening ball head (402) is located inside the hip (5). The mounting post (401) has an installation groove (403) inside, and a limit plate (404) is slidably connected inside the installation groove (403). The limiting plate (404) is fixedly connected to an anti-aggregation post (405) at one end near the elastic opening ball head (402). A push spring (406) is provided inside the mounting groove (403). A pull rope (407) is fixedly connected to the middle of the limiting plate (404). A rope take-up sleeve (408) is rotatably connected inside the mounting post (401). The end of the pull rope (407) away from the limiting plate (404) is fixedly connected to the outside of the rope take-up sleeve (408). The rope take-up sleeve (408) has a toothed groove inside. 409), a pin (410) is provided inside the waist (10), and a toothed ring (411) is fixedly connected to the outside of the pin (410). The toothed groove (409) and the toothed ring (411) are meshed. A receiving groove (412) is opened inside the mounting post (401) on one side of the rope loop (408). A loading groove (413) is opened inside the pin (410). A push spring (414) is provided inside the loading groove (413). A sliding connection is made inside the loading groove (413). A limiting block (415) is rotatably connected to a connecting rod (416) at one end away from the push spring (414). A chuck (417) is fixedly connected to the bottom of the pin (410). A limiting shaft (418) is fixedly connected to the bottom of the connecting rod (416). A threaded column (419) is rotatably connected to the outside of the limiting shaft (418). The external thread of the threaded column (419) is connected to the inside of the waist (10). A turning handle (420) is fixedly connected to the top of the pin (410).

4. The standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 1, characterized in that, The toughness simulation mechanism (8) includes multiple fixing boxes (801), which are respectively fixedly connected to the bottom of the torso (1) and the hip (5). The fixing box (801) has a sliding groove (802) inside, and a slider (803) is engaged inside the sliding groove (802). Multiple locking plates (804) are fixedly connected to the bottom of the slider (803), and two locking plates (804) are fitted with locking rings (805) on the outside. An elastic band (806) is fixedly connected between the two locking rings (805).

5. A standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 2, characterized in that, The end of the fixed cylinder (307) away from the anti-aggregation column (310) is fixedly connected to a conduit (311), and the ends of the two conduits (311) away from the fixed cylinder (307) are fixedly connected to the outside of the main column (301).

6. The standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 5, characterized in that, The pull rope (312) is slidably connected inside the conduit (311), and the ends of the two pull ropes (312) away from the limiting plate (309) are respectively located inside the two storage compartments (305).

7. A standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 2, characterized in that, The top of the rotating column (302) is fixedly connected to a torsion handle (306), the outside of the anti-gathering column (310) penetrates the inside of the shoulder (2), and the anti-gathering column (310) is located in the middle of the elastic opening ball head (313).

8. The standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 3, characterized in that, One end of the push spring (414) is fixedly connected to the inside of the receiving groove (413), and the other end of the push spring (414) is fixedly connected to the top of the limiting block (415).

9. A standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 3, characterized in that, One end of the push spring (406) is fixedly connected to the inner wall of the mounting groove (403), and the other end of the push spring (406) is fixedly connected to the end of the limiting plate (404) away from the anti-gathering column (405).

10. A standard model teaching aid for demonstration and assessment of spinal injury first aid as described in claim 3, characterized in that, The connecting rod (416) passes through the middle of the chuck (417), and the chuck (417) and the threaded post (419) are engaged.

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