A teaching aid for basic nursing teaching

Abstract

The invention discloses a teaching aid for basic nursing teaching, and relates to the technical field of nursing teaching aids, comprising: a cardiopulmonary resuscitation model, wherein a cavity is opened on the inner side of the cardiopulmonary resuscitation model; a chest, wherein the chest is fixedly connected to the inner side of the cardiopulmonary resuscitation model; an adaptive adjustment mechanism, wherein the adaptive adjustment mechanism is arranged on the inner side of the cavity and is used to adjust the hardness of the top of the chest; the invention provides an auxiliary pressing mechanism, so that each time the chest is pressed downward and has not been reset in time, when the operator presses again, the chest is stuck in the process of downward squeezing, thereby achieving that the chest can only move upward, thereby ensuring that the user's operation is correct, and the next operation will not be performed when the chest has not returned to the initial position, thereby helping students to better understand and master the correct pressing frequency, thereby improving the teaching effect, and further improving the overall practicality of the device.

Description

Technical Field

[0001] The invention relates to the technical field of nursing teaching aids, in particular to a teaching aid for basic nursing teaching. Background Art

[0002] There are many kinds of teaching aids for basic nursing teaching, covering all aspects from basic nursing skills to advanced first aid skills. Among them, the cardiopulmonary resuscitation model for nursing teaching is one of the important teaching tools. It can simulate emergency situations such as cardiac arrest and respiratory arrest to help students master the correct cardiopulmonary resuscitation techniques. It is usually made of silicone rubber, polyurethane foam, steel wire frame, hydraulic cylinder and other materials. It has wide application value and important practical significance in the field of medical education and training.

[0003] When using the cardiopulmonary resuscitation model for nursing teaching, first lay the model flat on a solid plane, such as a hard bed or the ground, then determine the pressing position, cross your hands and clasp them together, overlap your palms and heels, lift your fingers without touching the chest wall, and press down hard. When the user is pressing, an observer is required to observe the user's pressing and record the position, depth, and frequency of the pressing to facilitate feedback and learning of the pressing operation. When the user makes an error in operation, the model cannot send a signal to remind the user of the error in operation so as to make timely changes, thereby reducing the user's learning efficiency. For this reason, we have designed a teaching aid for basic nursing teaching to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a teaching aid for basic nursing in order to solve the problem that when a user makes an error in operation, the human body model cannot send a signal to remind the user of the error in operation so as to make timely corrections, thereby reducing the user's learning efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a teaching aid for basic nursing teaching, comprising: a cardiopulmonary resuscitation model, a cavity is opened on the inner side of the cardiopulmonary resuscitation model; a chest, the chest is fixedly connected to the inner side of the cardiopulmonary resuscitation model; an adaptive adjustment mechanism, the adaptive adjustment mechanism is arranged on the inner side of the cavity, and is used to adjust the hardness of the top of the chest, the adaptive adjustment mechanism includes two limit columns fixedly connected to the inner side of the cavity, and the outer wall of the limit column is slidably connected to a first rectangular plate; an auxiliary pressing mechanism, the auxiliary pressing mechanism is arranged at the bottom of the first rectangular plate, and is used to limit the frequency of the user's pressing; a pressing warning mechanism, the pressing warning mechanism is arranged on the inner side of the cardiopulmonary resuscitation model, and is used to warn the user of non-standard movements; a calibration warning mechanism, the calibration warning mechanism is arranged on both sides of the first rectangular plate, and is used to warn the user when the pressing position is wrong.

[0006] As a further solution of the present invention: the adaptive adjustment mechanism also includes two hydraulic cylinders installed on the inner side of the cavity, the outer walls of the two limit columns are slidably connected to a rectangular block, and the rectangular block is fixedly connected to the output end of the hydraulic cylinder, and a first compression spring is installed between the rectangular block and the first rectangular plate.

[0007] As a further solution of the present invention: the auxiliary pressing mechanism includes a first connecting column fixedly connected to the bottom of the first rectangular plate, a first cylinder is fixedly connected to the inner side of the first connecting column, a first circular groove is opened on the inner side of the first cylinder, a first sliding plate is slidably connected to the inner side of the first circular groove, one end of the first sliding plate is fixedly connected to a trapezoidal block, a return spring is installed between the other end of the first sliding plate and the inner side of the first circular groove, the other end of the first sliding plate is fixedly connected to a limiting plate, and a limiting component is arranged on the top of the limiting plate.

[0008] As a further solution of the present invention: the auxiliary pressing mechanism also includes two first connecting strips fixedly connected to the inner side of the cavity, a connecting card plate fixedly connected between the two first connecting strips, a second connecting strip fixedly connected to the top of the connecting card plate, and a first spherical rod fixedly connected to the bottom of the second connecting strip.

[0009] As a further solution of the present invention: the limiting assembly includes a second spherical rod slidably connected to the inner side of the first cylinder, the bottom of the second spherical rod is set as a first spherical surface, and the second spherical rod passes through the outer wall of the first cylinder and is fixedly connected to a second rectangular plate, a tension spring is installed between the second rectangular plate and the first cylinder, and a through hole matching the size of the second spherical rod is opened on the inner side of the limiting plate.

[0010] As a further solution of the present invention: a first inclined surface is provided at one end of the trapezoidal block, a second spherical surface is provided at the bottom of the first spherical rod, a plurality of limit strips are fixedly connected to one end of the connecting card plate, and a slope is provided at one end of each of the plurality of limit strips.

[0011] As a further solution of the present invention: the pressing warning mechanism includes a rectangular groove opened on the inner side of the cardiopulmonary resuscitation model, a second sliding plate is slidably connected to the inner side of the rectangular groove, a conductive sheet is fixedly connected to the top of the second sliding plate, a second compression spring is installed between the second sliding plate and the inner side of the rectangular groove, two power connection sheets are installed on the inner side of the rectangular groove, a connecting groove communicating with the rectangular groove is opened on the inner side of the cardiopulmonary resuscitation model, a piston rod is slidably connected to the inner side of the connecting groove, and the top of the piston rod is fixedly connected to the second sliding plate.

[0012] As a further solution of the present invention: the press warning mechanism also includes a second cylinder fixedly connected to the inner side of the cavity, and the second cylinder is arranged at the top of the connecting groove, and the connecting groove is communicated with the interior of the second cylinder, the inner side of the second cylinder is slidably connected with a piston plate, the outer wall of the first connecting column is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a second connecting column, and the second connecting column penetrates to the inner side of the second cylinder and is fixedly connected to the piston plate.

[0013] As a further solution of the present invention: the calibration warning mechanism includes a rotating plate arranged at both ends of the first rectangular plate, and a rotating rod is fixedly connected to both sides of the two rotating plates. A group of connecting seats are fixedly connected to both ends of the first rectangular plate, and each group of connecting seats is provided with two, and one end of the rotating rod passes through the outside of the connecting seat and is rotatably connected to the connecting seat, and a torsion spring is installed between the connecting seat and the rotating rod.

[0014] As a further solution of the present invention: the calibration warning mechanism also includes a third connecting strip fixedly connected to the outer wall of the limit column, two whistles are fixedly connected to the inner side of the third connecting strip, two third cylinders are fixedly connected to the inner side of the cavity, and the third cylinder is arranged on the top of the whistle, a sliding rod is slidably connected to the inner side of the third cylinder, and the top of the sliding rod is set as a third spherical surface, a ring is fixedly connected to the outer wall of the sliding rod, a third compression spring is installed between the ring and the third cylinder, a conical sealing strip is fixedly connected to the inner side of the third cylinder, and one end of the conical sealing strip is set to a cone.

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

[0016] 1. By setting an adaptive adjustment mechanism, when the user presses the chest, the chest is pushed downward, thereby driving the first rectangular plate to move downward. At this time, the first compression spring has a thrust on the end of the first rectangular plate, so that the user needs to use greater force to press the chest, thereby increasing the hardness of the cardiopulmonary resuscitation model, so that the hardness of the chest of an adult female can be simulated. When the user needs to simulate cardiopulmonary resuscitation on an adult male, the PLC controller controls the start of the hydraulic cylinder to start again, and the output end of the hydraulic cylinder moves upward for a second stroke, thereby further compressing the first compression spring, so that the user needs more force to press the chest than for an adult female, thereby realizing the simulation of the chest hardness of different groups of people, allowing users to practice cardiopulmonary resuscitation skills for different groups of people on a single model, thereby improving the practicality and flexibility of training.

[0017] 2. By setting up an auxiliary pressing mechanism, each time the chest is pressed downward and has not been reset in time, when the operator presses again, the chest is stuck in the process of squeezing downward, so that the chest can only move upward, thereby ensuring that the user's operation is correct and the next operation will not be performed before the chest has not returned to its initial position. This can help students better understand and master the correct pressing frequency, and at the same time can help students develop correct pressing habits, thereby improving the teaching effect and further improving the overall practicality of the device.

[0018] 3. By setting a pressing warning mechanism, two power connection pieces are electrically connected to the first warning light and the second warning light through wires respectively. The two power connection pieces are sequentially arranged as the first power connection part and the second power connection part from bottom to top. The conductive piece is electrically connected to the power supply through a wire. When the conductive piece moves to contact with the first power connection part, the first warning light will emit a blue light. When the conductive piece moves to contact with the second power connection part, the second warning light will emit a red light. When the first connecting column moves downward, it will drive the connecting plate to move downward, thereby driving the piston plate to move downward, thereby pushing the gas inside the second cylinder into the connecting groove, thereby pushing the piston rod to drive the second sliding plate to move upward, and then driving the conductive piece to move upward. When the user's pressing force is low, the downward movement of the first connecting column is shorter, thereby driving the second sliding plate to move a shorter stroke, so that The conductive sheet has a shorter travel during the upward movement, and at this time the conductive sheet will contact the first power connection part, so that the first warning light is powered on and emits blue light. When the user's pressing force is moderate, the conductive sheet will be in the middle position of the two power connection sheets and will not emit light. When the user's pressing force is large (the force here is to reach the conditions suitable for cardiopulmonary resuscitation), the conductive sheet will contact the second power connection part, so that the second warning light emits red light. In this way, when the user is performing a pressing operation, the device will emit blue light for warning when the operator's pressing force does not meet the standard, thereby playing a role of timely feedback. At the same time, different lights are emitted according to different incorrect operations, which is convenient for guiding the user to perform correct operations, so that the user can master the correct pressing force, thereby improving the teaching effect of the device.

[0019] 4. By setting up a calibration warning mechanism, when the user fails to put both hands in the pressing position to press the chest, the rotating plate is pushed to rotate under the action of the chest, thereby driving the sliding rod to move downward, so that the internal gas of the third cylinder rushes downward into the whistle, so that the whistle makes a whistle sound, thereby warning the user that their operation is incorrect and needs to be adjusted, and when the user releases the pressure on the chest, the sliding rod is reset under the action of the third compression spring, thereby improving the overall practicality of the device, and through timely feedback, thereby improving the practice effect of the device.

[0020] 5. Through the cooperation of the whistle parts, the rotating plate moves downward and drives the sliding rod to move, thereby driving the whistle to move synchronously. When the whistle is separated from the third cylinder, the gas inside the third cylinder will enter the cavity, so that the whistle will not continue to make a whistle sound. When the limit column is reset, the whistle is driven to move upward. When it contacts the inner conical surface of the conical sealing strip, the whistle can accurately enter the inner side of the third cylinder under the action of the conical sealing strip. Due to the squeezing effect of the whistle on the conical sealing strip, the end of the third cylinder is sealed, so that when the user presses in the wrong position, the whistle makes a whistle sound, so that the device can make a whistle sound when it is misoperated, and will not make a sound under correct operation, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 A cross-sectional view of the cardiopulmonary resuscitation model of the present invention;

[0023] Figure 3 A cross-sectional view of the adaptive adjustment mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the adaptive adjustment mechanism of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 It is a structural schematic diagram of the auxiliary pressing mechanism of the present invention;

[0027] Figure 7 It is a partial structural schematic diagram of the auxiliary pressing mechanism structure of the present invention;

[0028] Figure 8 It is a cross-sectional view of the pressing warning mechanism of the present invention;

[0029] Fig. 9 For the present invention Figure 8 Enlarged view of point B in the middle;

[0030] Fig.10 It is a cross-sectional view of the calibration warning mechanism of the present invention;

[0031] Fig.11 It is an exploded view of the whistle, the conical sealing strip and the third cylinder of the present invention.

[0032] In the figure: 1, cardiopulmonary resuscitation model; 2, cavity; 301, first rectangular plate; 302, limit column; 303, rectangular block; 304, first compression spring; 305, hydraulic cylinder; 401, first connecting column; 402, first connecting bar; 403, connecting card plate; 404, second connecting bar; 405, first spherical rod; 406, limit card strip; 407, first cylinder; 408, first sliding plate; 409, trapezoidal block; 410, return spring; 411, limit plate; 412, second spherical rod; 413, second rectangular plate; 414, tension spring; 415, first inclined surface; 416, first circular groove; 50 1. Rectangular groove; 502. Second sliding plate; 503. Conductive sheet; 504. Piston rod; 505. Second compression spring; 506. Electrical connection sheet; 507. Connecting groove; 508. Connecting plate; 509. Second connecting column; 510. Piston plate; 511. Second cylinder; 512. First warning light; 513. Second warning light; 601. Connecting seat; 602. Rotating rod; 603. Rotating plate; 604. Torsion spring; 605. Third connecting strip; 606. Whistle; 607. Third cylinder; 608. Sliding rod; 609. Ring; 610. Third compression spring; 611. Conical sealing strip; 7. Front chest. DETAILED DESCRIPTION

[0033] 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.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0035] Example 1

[0036] See also Figures 1 to 11 This embodiment provides a teaching aid for basic nursing teaching, including: a cardiopulmonary resuscitation model 1, a cavity 2 is opened on the inner side of the cardiopulmonary resuscitation model 1; a front chest 7, the front chest 7 is fixedly connected to the inner side of the cardiopulmonary resuscitation model 1;

[0037] The adaptive adjustment mechanism is arranged on the inner side of the cavity 2 and is used to adjust the hardness of the top of the front chest 7. The adaptive adjustment mechanism includes two limit columns 302 fixedly connected to the inner side of the cavity 2, and the outer wall of the limit column 302 is slidably connected to the first rectangular plate 301; the adaptive adjustment mechanism also includes two hydraulic cylinders 305 installed on the inner side of the cavity 2, and the outer walls of the two limit columns 302 are both slidably connected to a rectangular block 303, and the rectangular block 303 is fixedly connected to the output end of the hydraulic cylinder 305, and a first compression spring 304 is installed between the rectangular block 303 and the first rectangular plate 301;

[0038] The hydraulic cylinder 305 is controlled by a PLC controller, which can control the hydraulic cylinder 305 to start and control the hydraulic cylinder 305 to move upward by two strokes. When the rectangular block 303 is in the initial position, the first compression spring 304 is not compressed and is in the initial state. At this time, the front chest 7 is in a relatively soft state, similar to the hardness of a child's chest cavity. At this time, cardiopulmonary resuscitation for a child can be simulated. When the user needs to simulate cardiopulmonary resuscitation for an adult woman, the PLC controller controls the hydraulic cylinder 305 to start and drives the output end of the hydraulic cylinder 305 to move upward by the first stroke, thereby driving the rectangular block 303 to move upward, so that the first compression spring 304 is appropriately compressed under the action of the rectangular block 303, so that when the user presses the front chest 7, the front chest 7 is pushed to move downward, thereby driving the first moment The rectangular plate 301 moves downward, and the first compression spring 304 has a thrust on the end of the first rectangular plate 301, so that the user needs to use greater force to press down the front chest 7, thereby increasing the hardness of the cardiopulmonary resuscitation model 1, so that the hardness of the front chest 7 of an adult female can be simulated. When the user needs to simulate cardiopulmonary resuscitation on an adult male, the PLC controller controls the hydraulic cylinder 305 to start again, and the output end of the hydraulic cylinder 305 moves upward for a second stroke, thereby further compressing the first compression spring 304, so that the user needs to use greater force to press down the front chest 7 than for an adult female, thereby realizing the simulation of the chest hardness of different groups of people, allowing the user to practice the skills of cardiopulmonary resuscitation for different groups of people on a single model, thereby improving the practicality and flexibility of training.

[0039] Example 2

[0040] The auxiliary pressing mechanism is arranged at the bottom of the first rectangular plate 301 and is used to limit the frequency of the user's pressing; the auxiliary pressing mechanism includes a first connecting column 401 fixedly connected to the bottom of the first rectangular plate 301, a first cylinder 407 is fixedly connected to the inner side of the first connecting column 401, a first circular groove 416 is provided on the inner side of the first cylinder 407, a first sliding plate 408 is slidably connected to the inner side of the first circular groove 416, one end of the first sliding plate 408 is fixedly connected to a trapezoidal block 409, a return spring 410 is installed between the other end of the first sliding plate 408 and the inner side of the first circular groove 416, the other end of the first sliding plate 408 is fixedly connected to a limiting plate 411, and a limiting component is arranged on the top of the limiting plate 411; the auxiliary pressing mechanism also includes two first connecting strips 402 fixedly connected to the inner side of the cavity 2, and the two first connecting strips 402 are fixedly connected between them. A connecting card plate 403 is fixedly connected, a second connecting strip 404 is fixedly connected to the top of the connecting card plate 403, and a first spherical rod 405 is fixedly connected to the bottom of the second connecting strip 404; the limiting assembly includes a second spherical rod 412 slidably connected to the inner side of the first cylinder 407, the bottom of the second spherical rod 412 is set as a first spherical surface, and the second spherical rod 412 penetrates to the outer wall of the first cylinder 407 and is fixedly connected to a second rectangular plate 413, a tension spring 414 is installed between the second rectangular plate 413 and the first cylinder 407, and a through hole matching the size of the second spherical rod 412 is opened on the inner side of the limiting plate 411; a first inclined surface 415 is provided at one end of the trapezoidal block 409, a second spherical surface is provided at the bottom of the first spherical rod 405, a plurality of limiting card strips 406 are fixedly connected to one end of the connecting card plate 403, and a slope is provided at one end of the plurality of limiting card strips 406;

[0041] The pressing position of the cardiopulmonary resuscitation model is usually selected at the junction of the middle and lower 1 / 3 of the sternum, that is, the midpoint of the line connecting the two nipples. The pressing position of the device is directly above the first rectangular plate 301. When the user needs to perform simulated cardiopulmonary resuscitation, the user first places both hands on the pressing position on the top of the chest 7 and presses the chest 7 to press the chest 7 down. When the user releases the pressure on the chest 7 with both hands, the first rectangular plate 301 is driven to reset under the action of the first compression spring 304, thereby driving the first connecting column 401 to move upward, so that the trapezoidal block 409 can move upward. When the trapezoidal block 409 moves upward, when the first inclined surface 415 contacts the slope at one end of the limiting card strip 406, the trapezoidal block 409 is driven along the first circular groove under the action of the slope. 416 moves inwardly, so that the first connecting column 401 will not be stuck in the process of moving upward, and when the user performs the next pressing before the front chest 7 returns to the initial position, when the front chest 7 is pressed downward, the top of the limiting card strip 406 will abut against the bottom surface of the trapezoidal block 409, so that the trapezoidal block 409 is limited under the action of the limiting card strip 406, so that the front chest 7 is stuck in the process of squeezing downward, so that the front chest 7 can only move upward, thereby ensuring the correct operation of the user, and the next operation will not be performed before the front chest 7 returns to the initial position, so as to help students better understand and master the correct pressing frequency, and at the same time help students develop correct pressing habits, so as to improve the teaching effect, and further improve the overall practicality of the device;

[0042] When the chest 7 is pressed down, the first rectangular plate 301 is driven to move downward under the action of the chest 7, thereby driving the first connecting column 401 to move downward, so that the first cylinder 407 moves downward, thereby driving the second rectangular plate 413 to move downward. When the bottom of the second rectangular plate 413 contacts the top of the first connecting strip 402, the second rectangular plate 413 stops moving under the blocking action of the first connecting strip 402. At this time, the operator continues to press the chest 7, and the first cylinder 407 continues to move. At this time, the limit plate 411 moves downward with the first cylinder 407, so that the second spherical rod 41 2 slides relative to the limiting plate 411. When the bottom of the second spherical rod 412 is separated from the through hole inside the limiting plate 411, the limiting plate 411 is separated from the limiting position of the second spherical rod 412, and the first sliding plate 408 is pushed to move toward the side of the first spherical rod 405 under the action of the reset spring 410, thereby driving the trapezoidal block 409 to move outside the first circular groove 416, so that the first inclined surface 415 is aligned with the slope of one end of the limiting card strip 406, so that each time the first rectangular plate 301 is reset, it can play the function of limiting the pressing frequency, thereby preventing the operator from using the wrong pressing frequency during the learning process;

[0043] When the first connecting column 401 is in the process of resetting, and when the first inclined surface 415 contacts the second spherical surface at the bottom of the first spherical rod 405, the first inclined surface 415 is pushed to move in the opposite direction of the first spherical rod 405 under the action of the first inclined surface 415, and moves until the outer wall of the first spherical rod 405 contacts the bottom of the first inclined surface 415, and the trapezoidal block 409 moves to the maximum position, and the through hole opened on the inner side of the limit plate 411 is aligned with the second spherical rod 412, and the second spherical rod 412 is pushed under the action of the tension spring 414. The second spherical rod 412 moves downward along the through hole inside the tension spring 414, and when the tension spring 414 returns to its initial position, the second spherical rod 412 stops moving. At this time, the second spherical rod 412 returns to its initial locking position, ensuring that the device can quickly and accurately return to its initial state after each press, and prepare for the next press. In this way, when the user performs the next press operation, the trapezoidal block 409 will not be stuck by the limiting card strip 406, so that the device can be repeatedly operated, thereby improving the overall practicality of the device.

[0044] Example 3

[0045] The pressing warning mechanism is arranged on the inner side of the cardiopulmonary resuscitation model 1, and is used to warn the user of non-standard actions; the pressing warning mechanism includes a rectangular groove 501 opened on the inner side of the cardiopulmonary resuscitation model 1, a second sliding plate 502 is slidably connected to the inner side of the rectangular groove 501, a conductive sheet 503 is fixedly connected to the top of the second sliding plate 502, a second compression spring 505 is installed between the second sliding plate 502 and the inner side of the rectangular groove 501, two power connection sheets 506 are installed on the inner side of the rectangular groove 501, a connecting groove 507 communicating with the rectangular groove 501 is opened on the inner side of the cardiopulmonary resuscitation model 1, and the connecting groove 507 is The inner side is slidably connected with a piston rod 504, and the top of the piston rod 504 is fixedly connected to the second sliding plate 502; the pressing warning mechanism also includes a second cylinder 511 fixedly connected to the inner side of the cavity 2, and the second cylinder 511 is arranged on the top of the connecting groove 507, and the connecting groove 507 is communicated with the inside of the second cylinder 511, and the inner side of the second cylinder 511 is slidably connected with a piston plate 510, the outer wall of the first connecting column 401 is fixedly connected with a connecting plate 508, and the bottom of the connecting plate 508 is fixedly connected with a second connecting column 509, and the second connecting column 509 penetrates to the inner side of the second cylinder 511 and is fixedly connected to the piston plate 510;

[0046] The two power connection pieces 506 are electrically connected to the first warning light 512 and the second warning light 513 through wires, respectively. The two power connection pieces 506 are sequentially arranged as the first power connection part and the second power connection part from bottom to top. The conductive piece 503 is electrically connected to the power supply through a wire. When the conductive piece 503 moves to contact with the first power connection part, the first warning light 512 will emit a blue light. When the conductive piece 503 moves to contact with the second power connection part, the second warning light 513 will emit a red light. When the first connecting column 401 moves downward, it will drive the connecting plate 508 to move downward, thereby driving the piston plate 510 to move downward, thereby pushing the gas inside the second cylinder 511 into the connecting groove 507, thereby pushing the piston rod 504 to drive the second sliding plate 502 to move upward, thereby driving the conductive piece 503 to move upward, and when the user's pressing force is low, the downward movement of the first connecting column 401 is short, thereby driving the second sliding plate 50 2, the travel of the conductive sheet 503 in the process of moving upward is shorter, and the conductive sheet 503 will contact the first power connection part at this time, so that the first warning light 512 is powered on and emits blue light. When the user's pressing force is moderate, the conductive sheet 503 will be in the middle of the two power connection pieces 506, so that no light will be emitted. When the user's pressing force is large (the force here is to reach the conditions suitable for cardiopulmonary resuscitation), the conductive sheet 503 will contact the second power connection part at this time, so that the second warning light 513 emits red light, thereby realizing that when the user is performing a pressing operation, the device will emit blue light for warning when the operator's pressing force does not meet the standard, thereby playing a role of timely feedback. At the same time, different lights are emitted according to different wrong operations, so as to facilitate the user to perform correct operations, so as to facilitate the user to master the correct pressing force, thereby improving the teaching effect of the device.

[0047] Example 4

[0048] The calibration warning mechanism is arranged on both sides of the first rectangular plate 301, and is used to warn the user when the pressing position is wrong; the calibration warning mechanism includes a rotating plate 603 arranged at both ends of the first rectangular plate 301, and both sides of the two rotating plates 603 are fixedly connected with a rotating rod 602, and both ends of the first rectangular plate 301 are fixedly connected with a group of connecting seats 601, each group of connecting seats 601 is provided with two, and one end of the rotating rod 602 passes through the outside of the connecting seat 601 and is rotatably connected to the connecting seat 601, and a torsion spring 604 is installed between the connecting seat 601 and the rotating rod 602; the calibration warning mechanism also includes a fixed A third connecting strip 605 connected to the outer wall of the limiting column 302, two whistles 606 are fixedly connected to the inner side of the third connecting strip 605, two third cylinders 607 are fixedly connected to the inner side of the cavity 2, and the third cylinder 607 is arranged on the top of the whistle 606, a sliding rod 608 is slidably connected to the inner side of the third cylinder 607, and the top of the sliding rod 608 is arranged as a third spherical surface, a ring 609 is fixedly connected to the outer wall of the sliding rod 608, a third compression spring 610 is installed between the ring 609 and the third cylinder 607, a conical sealing strip 611 is fixedly connected to the inner side of the third cylinder 607, and one end of the conical sealing strip 611 is arranged as a cone;

[0049] When the user fails to put both hands in the pressing position to press the chest 7, the rotating plate 603 is pushed to rotate under the action of the chest 7, thereby driving the sliding rod 608 to move downward, so that the gas inside the third cylinder 607 rushes downward into the whistle 606, so that the whistle 606 emits a whistle, thereby warning the user that their operation is wrong and needs to be adjusted, and when the user releases the pressure on the chest 7, the sliding rod 608 is reset under the action of the third compression spring 610, thereby improving the overall practicality of the device, and through timely feedback, thereby improving the training effect of the device;

[0050] When the user puts both hands on the pressing position to press the chest 7, when the limiting column 302 moves downward, the whistle 606 moves synchronously with the limiting column 302 under the action of the third connecting strip 605, so that the rotating plate 603 moves downward while driving the sliding rod 608 to move, thereby driving the whistle 606 to move synchronously, and when the whistle 606 is separated from the third cylinder 607, the gas inside the third cylinder 607 will enter the cavity 2, so that the whistle 606 will not continue to make a whistle sound, and when the limiting column 302 is reset , driving the whistle 606 to move upward, and when it contacts the inner conical surface of the conical sealing strip 611, the whistle 606 can accurately enter the inner side of the third cylinder 607 under the action of the conical sealing strip 611, and due to the squeezing effect of the whistle 606 on the conical sealing strip 611, the end of the third cylinder 607 is sealed, so that when the user presses in the wrong position, the whistle 606 makes a whistle sound, so that the device can make a whistle sound when it is misoperated, and will not make a sound under correct operation, thereby improving the stability of the device.

[0051] What has been described above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A teaching aid for basic nursing teaching, characterized in that: include: A cardiopulmonary resuscitation model (1), wherein a cavity (2) is provided on the inner side of the cardiopulmonary resuscitation model (1); A front chest (7), the front chest (7) being fixedly connected to the inner side of the cardiopulmonary resuscitation model (1); an adaptability adjustment mechanism, the adaptability adjustment mechanism being arranged on the inner side of the cavity (2) and being used for adjusting the hardness of the top of the front chest (7), the adaptability adjustment mechanism comprising two limit columns (302) fixedly connected to the inner side of the cavity (2), the outer wall of the limit column (302) being slidably connected to a first rectangular plate (301); An auxiliary pressing mechanism, the auxiliary pressing mechanism being arranged at the bottom of the first rectangular plate (301) and being used to limit the frequency of pressing by the user; A pressing warning mechanism, the pressing warning mechanism being arranged on the inner side of the cardiopulmonary resuscitation model (1) and used to warn the user of non-standard movements; A calibration warning mechanism, the calibration warning mechanism being arranged on both sides of the first rectangular plate (301) and used to warn the user when an error occurs in the pressing position; The auxiliary pressing mechanism comprises a first connecting column (401) fixedly connected to the bottom of the first rectangular plate (301); a first cylinder (407) is fixedly connected to the inner side of the first connecting column (401); a first circular groove (416) is provided on the inner side of the first cylinder (407); a first sliding plate (408) is slidably connected to the inner side of the first circular groove (416); one end of the first sliding plate (408) is fixedly connected to a trapezoidal block (409); a return spring (410) is installed between the other end of the first sliding plate (408) and the inner side of the first circular groove (416); the other end of the first sliding plate (408) is fixedly connected to a limiting plate (411); a limiting component is provided on the top of the limiting plate (411); The auxiliary pressing mechanism further comprises two first connecting strips (402) fixedly connected to the inner side of the cavity (2), a connecting card plate (403) fixedly connected between the two first connecting strips (402), a second connecting strip (404) fixedly connected to the top of the connecting card plate (403), and a first spherical rod (405) fixedly connected to the bottom of the second connecting strip (404); One end of the trapezoidal block (409) is provided with a first inclined surface (415), the bottom of the first spherical rod (405) is provided with a second spherical surface, one end of the connecting clamping plate (403) is fixedly connected to a plurality of limiting clamping strips (406), and one end of each of the plurality of limiting clamping strips (406) is provided with a slope.

2. A teaching aid for basic nursing teaching according to claim 1, characterized in that: The adaptive adjustment mechanism further comprises two hydraulic cylinders (305) installed inside the cavity (2); the outer walls of the two limit columns (302) are slidably connected to a rectangular block (303); the rectangular block (303) is fixedly connected to the output end of the hydraulic cylinder (305); and a first compression spring (304) is installed between the rectangular block (303) and the first rectangular plate (301).

3. A teaching aid for basic nursing teaching according to claim 2, characterized in that: The limiting assembly comprises a second spherical rod (412) slidably connected to the inner side of the first cylinder (407); the bottom of the second spherical rod (412) is arranged as a first spherical surface; the second spherical rod (412) penetrates through the outer wall of the first cylinder (407) and is fixedly connected to a second rectangular plate (413); a tension spring (414) is installed between the second rectangular plate (413) and the first cylinder (407); and a through hole matching the size of the second spherical rod (412) is opened on the inner side of the limiting plate (411).

4. A teaching aid for basic nursing teaching according to claim 3, characterized in that: The pressing warning mechanism comprises a rectangular groove (501) provided on the inner side of the cardiopulmonary resuscitation model (1); a second sliding plate (502) is slidably connected to the inner side of the rectangular groove (501); a conductive sheet (503) is fixedly connected to the top of the second sliding plate (502); a second compression spring (505) is installed between the second sliding plate (502) and the inner side of the rectangular groove (501); two power connection sheets (506) are installed on the inner side of the rectangular groove (501); a connecting groove (507) communicating with the rectangular groove (501) is provided on the inner side of the cardiopulmonary resuscitation model (1); a piston rod (504) is slidably connected to the inner side of the connecting groove (507); and the top of the piston rod (504) is fixedly connected to the second sliding plate (502).

5. A teaching aid for basic nursing teaching according to claim 4, characterized in that: The pressing warning mechanism also includes a second cylinder (511) fixedly connected to the inner side of the cavity (2), and the second cylinder (511) is arranged at the top of the connecting groove (507), and the connecting groove (507) is communicated with the inside of the second cylinder (511), the inner side of the second cylinder (511) is slidably connected to a piston plate (510), the outer wall of the first connecting column (401) is fixedly connected to a connecting plate (508), the bottom of the connecting plate (508) is fixedly connected to a second connecting column (509), and the second connecting column (509) passes through the inner side of the second cylinder (511) and is fixedly connected to the piston plate (510).

6. A teaching aid for basic nursing teaching according to claim 5, characterized in that: The calibration warning mechanism comprises rotating plates (603) arranged at both ends of the first rectangular plate (301), and both sides of the two rotating plates (603) are fixedly connected to a rotating rod (602), and both ends of the first rectangular plate (301) are fixedly connected to a group of connecting seats (601), and each group of connecting seats (601) is provided with two, and one end of the rotating rod (602) passes through the outside of the connecting seat (601) and is rotatably connected to the connecting seat (601), and a torsion spring (604) is installed between the connecting seat (601) and the rotating rod (602).

7. A teaching aid for basic nursing teaching according to claim 6, characterized in that: The calibration warning mechanism further comprises a third connecting strip (605) fixedly connected to the outer wall of the limiting column (302); two whistles (606) are fixedly connected to the inner side of the third connecting strip (605); two third cylinders (607) are fixedly connected to the inner side of the cavity (2); the third cylinder (607) is arranged on the top of the whistle (606); a sliding rod (608) is slidably connected to the inner side of the third cylinder (607); the top of the sliding rod (608) is arranged as a third spherical surface; a ring (609) is fixedly connected to the outer wall of the sliding rod (608); a third compression spring (610) is installed between the ring (609) and the third cylinder (607); a conical sealing strip (611) is fixedly connected to the inner side of the third cylinder (607); and one end of the conical sealing strip (611) is arranged to be conical.

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