Mannequin

Abstract

This invention relates to the field of medical device technology and discloses a human body model. The invention includes a torso, leaf springs, leaf spring support blocks, and a head. Rollers are installed at the free ends of the leaf springs to reduce chest skin abrasion; POM material is used for the leaf spring support blocks to reduce friction and debris; a stop block and limiting guide groove are used to prevent overpressure failure; elastic buckles are added for tool-free assembly and disassembly; anti-slip pads with folded edges are provided at the bottom of the torso to prevent damage to the chest skin during stacking; and the head uses a pleated seal and claw structure to achieve sealed installation and positioning indication. This invention improves the durability, stability, ease of use, and user experience of the model, and is suitable for cardiopulmonary resuscitation teaching and training.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to human models. Background Technology

[0002] Cardiopulmonary resuscitation (CPR) is a core skill in the field of first aid, and CPR training mannequins are a key tool for skills training, widely used in medical schools, emergency centers, and corporate safety training. With the increasing popularity of first aid training globally, the frequency of mannequin use has increased significantly. Their durability, lifespan, and training experience have become core considerations for users when choosing products, leading to a continued growth in market demand for high-performance, low-damage mannequins.

[0003] In existing technologies, the core structure of a mannequin typically includes a main torso component and a movable chest skin. The main torso component integrates functional modules such as compression feedback and airway simulation, and its front side has a receiving groove for mounting the chest skin. The chest skin is fitted into the receiving groove via clips, slide rails, or elastic support structures. To simulate the feel of realistic chest compressions, the chest skin needs a certain degree of freedom of movement to achieve compliant deformation and return to its original position during compressions. To ensure structural stability, in existing designs, the inner wall of the chest skin and the inner wall of the torso receiving groove are often in direct contact or transitioned by a simple pad, inevitably resulting in continuous friction between the two during long-term compression activities.

[0004] However, the existing structure has obvious defects: on the one hand, frequent friction between the chest skin and the main body components of the torso will cause the contact area of ​​the chest skin to wear down gradually. With the increase of use, the chest skin is prone to thinning, cracking, or even wearing through. Under moderate use, the average replacement cycle of the chest skin is only 3-6 months, which greatly increases the consumable cost for users. On the other hand, the worn chest skin will change the resistance feedback characteristics when pressing, resulting in a greater difference between the training feel and the real human body, which will affect the training effect. Moreover, the worn chest skin may expose the internal components of the torso, which may not only cause internal module contamination or damage, but may also scratch the user during training operations, seriously affecting the user experience and safety of the product. The friction wear problem of the existing mannequin has become a key pain point restricting its performance upgrade. Summary of the Invention

[0005] This invention provides a human body model to solve the above-mentioned problems.

[0006] This invention provides a human body model, comprising: The main body of the torso has an open cavity in the abdomen; A leaf spring is disposed inside the open cavity, with one end of it being rotatably connected to the cavity wall as a rotating end; the upper surface of the leaf spring is adapted to cover the chest skin. A roller is rotatably mounted on the free end of the leaf spring, and the free end of the leaf spring abuts against the chest skin via the roller.

[0007] In this invention, the torso constitutes the main torso of the human body model, and its abdominal region has an upward-opening cavity. This cavity is used to accommodate the pressure feedback mechanism.

[0008] The leaf spring is a long, elastic component housed within an open cavity in the torso. One end of the leaf spring is rotatably connected to the side wall of the open cavity via a pivot or hinge, serving as the rotating end and allowing the spring to oscillate around that point. The other end of the leaf spring is a free, movable end. The upper surface of the leaf spring supports and covers a simulated chest skin, mimicking the shape and feel of a human chest, which the user applies force directly to during CPR compressions.

[0009] The roller is a rotatable cylindrical component that is rotatably mounted on the free end of the leaf spring via a bearing or pin structure. Specifically, the axis of the roller is substantially parallel to the width direction of the leaf spring. In the assembled state, the free end of the leaf spring rolls against the inner surface of the overlying chest skin via the roller, rather than making fixed contact or sliding friction.

[0010] When a user presses on the chest skin, the force is transmitted through the chest skin to the leaf spring. The leaf spring, with its rotating end as the fulcrum, undergoes elastic bending deformation, and its free end is displaced accordingly. During this process, the roller on the free end rolls relative to the inside of the chest skin. This design transforms the direct sliding friction between the free end of the leaf spring and the chest skin in existing technologies into rolling friction, significantly reducing frictional resistance. This effectively reduces chest skin wear, cracking, and debris generation caused by repeated pressing, extending the service life of the chest skin and the model as a whole, and improving the feel and training experience of the pressing operation.

[0011] In one optional embodiment, the torso body is provided with a leaf spring support block, and the free end of the leaf spring is movably disposed in a placement groove on the leaf spring support block; The leaf spring support block is made of POM material.

[0012] This invention effectively solves the wear problem caused by direct friction between the leaf spring and the main body made of ordinary engineering plastics in existing technologies by setting a leaf spring support block made of POM material and designing a groove on it to support the free end of the leaf spring. As an independent wear-resistant component, the leaf spring support block is easy to replace and maintain, further improving product reliability and user experience.

[0013] In one alternative implementation: A stop is provided on the inner side of the free end of the leaf spring; The bottom wall of the placement groove is provided with a limiting guide groove, and the stop block is movably disposed inside the limiting guide groove; The limiting guide groove is configured to limit the stop block, thereby restricting the degree of deformation of the leaf spring.

[0014] This design reliably prevents the free end of the leaf spring from completely detaching from the slot of the leaf spring support block due to excessive pressure via mechanical limiting, thus avoiding product malfunction. Compared to the fiber rope pulling method used in existing technologies, this mechanical limiting structure is more durable and reliable, ensuring the stability and safety of the model during long-term use.

[0015] In one optional embodiment, a buffer pad is provided on one wall of the limiting guide groove, and the buffer pad is configured to abut against the stop block.

[0016] During the pressing process, the stop block slides within the limiting guide groove and eventually reaches the end of the groove, where it contacts and abuts against the buffer pad. The elastic properties of the buffer pad allow it to undergo compressive deformation upon impact with the stop block, thereby absorbing the impact energy.

[0017] In one alternative implementation: The leaf spring support block is equipped with an elastic buckle; The free end of the leaf spring is provided with an elastic buckle adapter, which is adapted to engage with the elastic buckle adapter to fix the free end of the leaf spring.

[0018] This invention achieves quick, reliable, and tool-free installation and fixation between the free end of the leaf spring and the leaf spring support block through the snap-fit ​​design of the elastic buckle and elastic buckle adapter. This design simplifies the assembly and maintenance process, improves the assembly efficiency and ease of use of the product, and solves the problems of complexity, instability, or the need for auxiliary tools that may exist in traditional connection methods. The technical solution of this embodiment can be implemented independently and achieve its technical effects.

[0019] In one alternative embodiment, both the elastic buckle and the elastic buckle adapter have chamfered surfaces that are adapted to abut against each other.

[0020] The chamfered structure significantly reduces the risk of jamming during installation due to misalignment or edge interference, making the entire fastening process smoother and less strenuous, and further enhancing the convenience of tool-free quick installation.

[0021] In one alternative embodiment, the resilient buckle is provided with an actuating element configured to be pushed by an external force to force the resilient buckle to release the resilient buckle adapter.

[0022] This design enables tool-free, quick disassembly between the free end of the leaf spring and the leaf spring support block. Users can safely and effortlessly complete the disassembly by manually operating the lever without any auxiliary tools, greatly facilitating model maintenance, cleaning, or component replacement.

[0023] In one optional embodiment, the bottom of the torso body is provided with several mounting guide grooves, and anti-slip pads are installed in the mounting guide grooves. One side of the anti-slip pads is provided with a flange facing the inside of the torso body.

[0024] When multiple identical mannequins are stacked, the bottom of the upper mannequin's torso rests on the chest skin of the lower mannequin. At this point, the inward-facing flange will contact the chest skin of the lower mannequin before the hard bottom surface of the torso. Because the anti-slip pads (including their flanges) are made of a soft material, they act as a cushioning layer, effectively preventing the hard torso from directly pressing and rubbing against the chest skin of the lower mannequin, thus avoiding indentations or abrasions on the chest skin.

[0025] In one alternative embodiment, the torso body has outwardly raised protrusions on both shoulders and waist.

[0026] When multiple identical human models are stacked or transported, the top of the protrusion on the torso of the upper model can abut against the bottom edge of the lower model, thus preventing direct contact between the upper and lower mannequins.

[0027] In one alternative implementation, it further includes: A sealing support is disposed at the neck of the main body of the torso, and the sealing support has an annular support surface; A sealing element is fixed to the annular support surface. The sealing element is annular and its sides are corrugated sealing surfaces. The head is installed in the neck of the main body of the torso, and the head is provided with a claw inside, which is adapted to abut against the back of the annular support surface to fix the sealing support; The pleated sealing surface is adapted to abut against the wall of the mounting cavity of the head.

[0028] During face skin installation (i.e., head and torso neck alignment), the operator snaps the head downwards. During this process, the sealing support and the seal fixed to it enter the head's mounting cavity. The corrugated sealing surface of the seal contacts and abuts against the cavity wall. Due to the special structure of the corrugated sealing surface, it can undergo significant elastic deformation under pressure, tightly conforming to the cavity wall, thus forming an effective radial seal between them, preventing external liquids or dust from entering the model.

[0029] Simultaneously, upon installation, the protruding ends of the claws inside the head extend beyond the back edge of the annular support surface of the sealing support and abut against that back edge. This abutment securely engages and fixes the sealing support (along with the seals thereon) between the head and the neck of the torso, preventing it from loosening. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a front view of a human body model according to an embodiment of the present invention; Figure 2 for Figure 1 The internal structural view of the human body model shown; Figure 3 for Figure 2 A partially enlarged schematic diagram of the front of the free end of the middle leaf spring; Figure 4 for Figure 2 A partially enlarged schematic diagram of the back of the free end of the middle leaf spring; Figure 5 for Figure 2 A partially enlarged schematic diagram of the leaf spring support block; Figure 6 for Figure 5 A partially enlarged schematic diagram of the flexible snap fastener adapter; Figure 7 A magnified view of a portion of the mannequin with guide grooves and anti-slip pads installed. Figure 8 This is a magnified view of a portion of the head and torso of a human body model.

[0032] Explanation of reference numerals in the attached figures: 1. Main body of the torso; 2. Leaf spring; 3. Chest skin; 4. Rollers; 5. Leaf spring support block; 6. Stop; 7. Limiting guide groove; 8. Cushioning pad; 9. Flexible buckle; 10. Flexible buckle accessories; 11. Actuating components; 12. Install the guide groove; 13. Boss; 14. Sealing support components; 15. Sealing components; 16. Head; 17. Claw; 18. Anti-slip foot mats. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Cardiopulmonary resuscitation (CPR) is a core skill in the field of first aid, and CPR training mannequins are a key tool for skills training, widely used in medical schools, emergency centers, and corporate safety training. With the increasing popularity of first aid training globally, the frequency of mannequin use has increased significantly. Their durability, lifespan, and training experience have become core considerations for users when choosing products, leading to a continued growth in market demand for high-performance, low-damage mannequins.

[0035] In existing technologies, the core structure of a mannequin typically includes a main torso component and a movable chest skin 3. The main torso component integrates functional modules such as compression feedback and airway simulation, and its front side has a receiving groove for mounting the chest skin 3. The chest skin 3 is fitted into the receiving groove via buckles, slide rails, or elastic support structures. To simulate the feel of realistic chest compressions, the chest skin 3 needs a certain degree of freedom of movement to achieve compliant deformation and reset during compressions. To ensure structural stability, in existing designs, the inner wall of the chest skin 3 and the inner wall of the torso receiving groove are often in direct contact or transitioned by a simple pad. This inevitably leads to continuous friction between the two during long-term compression activities.

[0036] However, the existing structure has obvious defects: on the one hand, frequent friction between the chest skin 3 and the main torso components will cause the contact area of ​​the chest skin 3 to wear down gradually. With the increase of use, the chest skin 3 is prone to thinning, cracking, or even wearing through. Under moderate use, the average replacement cycle of the chest skin 3 is only 3-6 months, which greatly increases the user's consumable costs. On the other hand, the worn chest skin 3 will change the resistance feedback characteristics when pressing, resulting in a greater difference between the training feel and the real human body, which will affect the training effect. Moreover, the worn chest skin 3 may expose the internal components of the torso, which may not only cause internal module contamination or damage, but may also scratch the user during training operations, seriously affecting the product's user experience and safety. The friction wear problem of the existing mannequin has become a key pain point restricting its performance upgrade.

[0037] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0038] According to an embodiment of the present invention, a human body model is provided, including a torso body 1, a leaf spring 2, and a roller 4. The torso body 1 has an open cavity in the abdomen. The leaf spring 2 is disposed inside the open cavity, and one end of the leaf spring 2 is rotatably connected to the cavity wall of the open cavity as a rotating end. The upper surface of the leaf spring 2 is adapted to cover the chest skin 3. The roller 4 is rotatably disposed on the free end of the leaf spring 2, and the free end of the leaf spring 2 abuts against the chest skin 3 via the roller 4.

[0039] In this embodiment, the torso body 1 constitutes the main torso of the human body model, and its abdominal region has an upward-opening cavity. This cavity is used to accommodate the pressure feedback mechanism.

[0040] The leaf spring 2 is a long, elastic component housed within the open cavity of the torso body 1. One end of the leaf spring 2 is rotatably connected to the side wall of the open cavity via a pivot or hinge structure, serving as the rotating end of the leaf spring 2 and allowing it to swing around that point. The other end of the leaf spring 2 is a movable, free end. The upper surface of the leaf spring 2 supports and covers a simulated chest skin 3, which mimics the shape and feel of a human chest. During CPR, the user applies force directly to the chest skin 3.

[0041] Roller 4 is a rotatable cylindrical component that is rotatably mounted on the free end of leaf spring 2 via a bearing or pin structure. Specifically, the axis of roller 4 is substantially parallel to the width direction of leaf spring 2. In the assembled state, the free end of leaf spring 2 forms rolling contact with the inner surface of the overlying chest skin 3 via roller 4, rather than fixed contact or sliding friction.

[0042] When a user presses on the chest skin 3, the force is transmitted through the chest skin 3 to the leaf spring 2. The leaf spring 2 undergoes elastic bending deformation with its rotating end as the fulcrum, and its free end is displaced accordingly. During this process, the roller 4 on the free end rolls relative to the inner side of the chest skin 3. This design transforms the direct sliding friction between the free end of the leaf spring 2 and the chest skin 3 in the prior art into rolling friction, significantly reducing frictional resistance. This effectively reduces the problems of wear, cracking, and debris generation of the chest skin 3 caused by repeated pressing, extends the service life of the chest skin 3 and the model as a whole, and improves the feel and training experience of the pressing operation.

[0043] In one embodiment, the torso body 1 is provided with a leaf spring support block 5, and the free end of the leaf spring 2 is movably disposed in the placement groove on the leaf spring support block 5; the leaf spring support block 5 is made of POM material.

[0044] On the main body 1, specifically on the upper side of the waist, there is a leaf spring support block 5. A placement groove is provided on the leaf spring support block 5, and the free end of the leaf spring 2 is movably disposed within the placement groove. This means that the free end of the leaf spring 2 can be placed in the placement groove and slide or move within it during pressing.

[0045] The leaf spring support block 5 is made of POM (polyoxymethylene resin). POM material has high hardness, wear resistance, and self-lubricating properties. By using the POM leaf spring support block 5, when the free end of the leaf spring 2 moves within the placement groove, the self-lubricating properties of POM significantly reduce the coefficient of friction between the leaf spring 2 and the support block, thereby reducing wear and debris generation. Simultaneously, the high hardness ensures that the support block is not easily deformed or damaged under repeated pressure, improving the model's durability and service life.

[0046] Furthermore, the leaf spring support block 5 is made of POM material, which greatly reduces the coefficient of friction between the chest skin 3 and the leaf spring support block 5 when the simulated person is being pressed.

[0047] This embodiment effectively solves the wear problem caused by direct friction between the leaf spring 2 and the main body 1 made of ordinary engineering plastic in the prior art by setting a leaf spring support block 5 made of POM material and designing a groove on it to support the free end of the leaf spring 2. As an independent wear-resistant component, the leaf spring support block 5 is easy to replace and maintain, further improving the reliability of the product and the user experience.

[0048] In one embodiment, a stop 6 is provided on the inner side of the free end of the leaf spring 2; a limiting guide groove 7 is provided on the bottom wall of the placement groove, and the stop 6 is movably disposed inside the limiting guide groove 7; the limiting guide groove 7 is configured to limit the stop 6 to restrict the degree of deformation of the leaf spring 2.

[0049] Specifically, on the inner side of the free end of leaf spring 2 (i.e. Figure 4 A stop 6 is fixedly installed on one side (as shown). The stop 6 can be a protruding structure that is connected to the leaf spring 2 by means of screws, snap-fit, or integral molding.

[0050] Corresponding to the stop block 6, a limiting guide groove 7 is recessed or machined on the bottom wall of the placement groove of the leaf spring support block 5. The stop block 6 is accommodated inside the limiting guide groove 7 and can slide within it. The limiting guide groove 7 has a preset length and direction, and its two ends constitute the physical boundaries of the movement of the stop block 6.

[0051] When chest compressions are applied to the model, the leaf spring 2 deforms under stress, its middle portion concave into the open cavity. Its free end then drives the stop block 6 to slide towards the model's head 16 within the limiting guide groove 7. The end of the limiting guide groove 7 (the end closest to the head 16) is designed as a retaining wall or a closed end. When the compression depth reaches a preset value, the stop block 6 will move to contact the retaining wall at the end of the limiting guide groove 7. At this point, the retaining wall prevents the stop block 6 from moving further, thus limiting the further displacement of the free end of the leaf spring 2, i.e., limiting the overall deformation of the leaf spring 2.

[0052] This design reliably prevents the free end of the leaf spring 2 from completely dislodging from the slot of the leaf spring support block 5 due to excessive pressure by using a mechanical limiting method, thus avoiding product malfunction. Compared with the fiber rope pulling method used in existing technologies, this mechanical limiting structure is more durable and reliable, ensuring the stability and safety of the model during long-term use.

[0053] In one embodiment, a buffer pad 8 is provided on one wall of the limiting guide groove 7, and the buffer pad 8 is configured to abut against the stop block 6.

[0054] Specifically, a buffer pad 8 is fixedly provided on the end wall of the limiting guide groove 7 (i.e., the groove wall where the stop block 6 is located). The buffer pad 8 is preferably made of an elastic material, such as silicone, rubber or polyurethane.

[0055] The buffer pad 8 is configured such that when the stop block 6 slides within the limiting guide groove 7 during the pressing process and eventually moves to the end of the guide groove, the stop block 6 will contact and abut against the buffer pad 8. The elastic properties of the buffer pad 8 enable it to undergo compressive deformation when impacted by the stop block 6, thereby absorbing impact energy.

[0056] In one embodiment, the leaf spring support block 5 is provided with an elastic buckle 9; the free end of the leaf spring 2 is provided with an elastic buckle adapter 10, and the elastic buckle 9 is adapted to engage with the elastic buckle adapter 10 to fix the free end of the leaf spring 2.

[0057] In this embodiment, an elastic buckle 9 is provided on the leaf spring support block 5. The elastic buckle 9 can be a cantilever beam structure integrally formed with the leaf spring support block 5, and its end is provided with a hook. At the same time, an elastic buckle adapter 10 matching the elastic buckle 9 is provided on the free end of the leaf spring 2. The adapter can be a groove, a flange, or other structure that can engage with the hook.

[0058] When the free end of leaf spring 2 needs to be installed onto leaf spring support block 5, the operator aligns the free end of leaf spring 2 (along with its adapter) to the predetermined position on leaf spring support block 5 and applies pressure. During this process, the elastic snap-fit ​​adapter 10 contacts the elastic snap 9 and forces the elastic snap 9 to undergo elastic deformation (e.g., opening outward or contracting inward). When the free end of leaf spring 2 is in place, the hook of the elastic snap 9 rebounds under its own elastic restoring force, engaging with the elastic snap-fit ​​adapter 10, thereby reliably fixing the free end of leaf spring 2 onto leaf spring support block 5 and preventing it from accidentally dislodging when not pressed.

[0059] Conversely, when disassembly and maintenance are required, the operator only needs to apply a reverse force to the elastic clip 9 to deform it again, so that the hook can be disengaged from the adapter, thereby achieving quick disassembly of the free end of the leaf spring 2.

[0060] This embodiment achieves quick, reliable, and tool-free installation and fixation between the free end of the leaf spring 2 and the leaf spring support block 5 through the snap-fit ​​design of the elastic buckle 9 and the elastic buckle adapter 10. This design simplifies the assembly and maintenance process, improves the assembly efficiency and ease of use of the product, and solves the problems of complexity, instability, or the need for auxiliary tools that may exist in traditional connection methods. The technical solution of this embodiment can be implemented independently and achieve its technical effects.

[0061] In one embodiment, both the elastic buckle 9 and the elastic buckle adapter 10 have chamfered surfaces that are adapted to abut each other.

[0062] Specifically, a chamfer is provided on the end face or side face of the hook portion of the elastic buckle 9 facing the installation direction (i.e., the direction in which it initially contacts and interacts with the elastic buckle adapter 10). Correspondingly, a matching chamfer is also provided on the portion of the elastic buckle adapter 10 that contacts and engages with the hook of the elastic buckle 9.

[0063] Both the elastic buckle 9 and the elastic buckle adapter 10 have beveled chamfered surfaces on their contact surfaces for engagement. When installing the free end of the leaf spring 2, the operator roughly aligns the free end of the leaf spring 2 with the predetermined position on the leaf spring support block 5 and applies pressure. Due to the chamfer, the chamfered surface of the elastic buckle adapter 10 first contacts the chamfered surface of the elastic buckle 9. Under subsequent continuous pressure, the two beveled surfaces slide against each other, generating a component force perpendicular to the installation direction. This component force effectively guides the alignment of the two surfaces and more smoothly forces the elastic buckle 9 to undergo the required elastic deformation, allowing the hook to slide smoothly and finally engage with the corresponding position of the adapter.

[0064] The chamfered structure significantly reduces the risk of jamming during installation due to misalignment or edge interference, making the entire fastening process smoother and less strenuous, and further enhancing the convenience of tool-free quick installation.

[0065] In one embodiment, the resilient buckle 9 is provided with a toggle member 11, which is configured to be pushed by an external force to force the resilient buckle 9 to release the resilient buckle adapter 10.

[0066] Specifically, an actuating element 11 is provided on the elastic buckle 9. The actuating element 11 is preferably a protrusion, lever or similar structure integrally formed or fixedly connected to the elastic buckle 9, and its position is designed to facilitate contact and force application by the user (such as a finger).

[0067] The actuating element 11 is configured such that when the free end of the leaf spring 2 needs to be removed, the user applies an external force to the actuating element 11. This external force is transmitted through the actuating element 11 to the elastic latch 9, thereby forcing the elastic latch 9 to undergo controlled elastic deformation (e.g., causing the latch to open outward or retract inward). When the deformation of the elastic latch 9 reaches a sufficient degree, the engagement between its latch and the elastic latch adapter 10 is released, i.e., the elastic latch adapter 10 is released, thereby allowing the free end of the leaf spring 2 to move off the leaf spring support block 5.

[0068] This design enables tool-free, quick disassembly between the free end of leaf spring 2 and leaf spring support block 5. Users can safely and effortlessly complete the disassembly by manually operating the lever 11 without any auxiliary tools, greatly facilitating model maintenance, cleaning, or component replacement.

[0069] In one embodiment, a plurality of mounting guide grooves 12 are provided around the bottom of the torso body 1, and anti-slip pads 18 are installed in the mounting guide grooves 12. One side of the anti-slip pads 18 is provided with a flange facing the inside of the torso body 1.

[0070] Several mounting guide grooves 12 are provided around the bottom of the main body 1. These mounting guide grooves 12 can be strip-shaped channels recessed into the bottom surface of the main body 1.

[0071] An anti-slip pad 18 is installed in each mounting guide groove 12. The anti-slip pad 18 is preferably made of an elastic or flexible material (such as rubber, thermoplastic elastomer TPE, etc.), with its main body embedded or snapped into the mounting guide groove 12, and part of its bottom surface exposed to contact the support surface.

[0072] Specifically, a protruding flange is provided on the side of the anti-slip foot pad 18 facing the center of the torso body 1. In the installed state, this flange faces the inside of the torso body 1 (i.e., towards the central axis of the model torso). The anti-slip foot pad 18 is physically fixed by its body engaging with the mounting guide groove 12, without relying on adhesive. When multiple identical human models are stacked, the flange increases the friction between the upper and lower models during stacking, improving stacking stability.

[0073] In one embodiment, the two shoulders and waist of the torso body 1 are provided with outwardly raised bosses 13, and the inner side of each raised boss 13 is formed with a limiting groove.

[0074] The torso body 1 has outwardly raised protrusions 13 at both shoulders and at the waist. These protrusions 13 protrude outward from the side surface of the torso body 1, forming local reinforcement or docking structures.

[0075] Specifically, a limiting groove is formed on the inner side of each outwardly raised protrusion 13 (i.e., the side facing the central axis of the torso body 1). This limiting groove can be an inwardly extending groove, channel, or guide rail-like structure.

[0076] When multiple identical human models are stacked or transported, the top of the protrusion on the torso of the upper model can abut against the bottom edge of the lower model, thus preventing direct contact between the upper and lower mannequins.

[0077] In one embodiment, the human body model further includes a sealing support 14, a sealing element 15, and a head 16. The sealing support 14 is disposed at the neck of the torso body 1 and has an annular support surface. The sealing element 15 is fixed to the annular support surface and is annular with its sides being pleated sealing surfaces. The head 16 is installed at the neck of the torso body 1 and has a claw 17 inside. The claw 17 is adapted to abut against the back of the annular support surface to fix the sealing support 14. The pleated sealing surface is adapted to abut against the wall of the mounting cavity of the head 16.

[0078] A sealing support 14 is disposed at the neck position of the torso body 1. The sealing support 14 is generally annular frame structure, with an annular support surface on the side facing the head 16. This annular support surface is used to support and fix the seal 15.

[0079] The seal 15 is annular and made of an elastic material (such as silicone), with its inner ring or bottom fixed to the annular support surface of the sealing support 14. The side structure of the seal 15 is a pleated sealing surface, which is composed of a series of continuous concave and convex pleats, and has a large deformation capacity and elasticity.

[0080] The head 16 has an internal mounting cavity for accommodating the sealing support 14 and the seal 15. At least one claw 17 is provided on the cavity wall. This claw 17 can be a flexible cantilever structure with a protrusion at its end.

[0081] During face skin installation (i.e., head 16 aligned with the neck of the torso 1), the operator snaps the head 16 downwards. During this process, the sealing support 14 and the sealing element 15 fixed thereon enter the mounting cavity of the head 16. The pleated sealing surface of the sealing element 15 contacts and abuts against the cavity wall of the head 16 mounting cavity. Due to the special structure of the pleated sealing surface, it can produce significant elastic deformation when compressed, tightly conforming to the cavity wall, thereby forming an effective radial seal between them, preventing external liquids or dust from entering the model.

[0082] Simultaneously, when installed in place, the protruding end of the claw 17 inside the head 16 will extend beyond the back edge of the annular support surface of the sealing support 14 and abut against that back edge. This abutment securely engages and fixes the sealing support 14 (together with the seal 15 thereon) between the head 16 and the neck of the torso body 1, preventing it from loosening.

[0083] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A human body model, characterized in that, include: The main body of the torso (1) has an open cavity in the abdomen; A leaf spring (2) is disposed inside the open cavity, and one end of the leaf spring (2) is rotatably connected to the cavity wall of the open cavity as a rotating end; the upper surface of the leaf spring (2) is adapted to cover the chest skin (3). A roller (4) is rotatably mounted on the free end of the leaf spring (2), and the free end of the leaf spring (2) abuts against the chest skin (3) via the roller (4).

2. The human body model according to claim 1, characterized in that, The main body (1) is provided with a leaf spring support block (5), and the free end of the leaf spring (2) is movably disposed in the placement groove on the leaf spring support block (5); The leaf spring support block (5) is made of POM material.

3. The human body model according to claim 2, characterized in that: A stop (6) is provided on the inner side of the free end of the leaf spring (2); The bottom wall of the placement groove is provided with a limiting guide groove (7), and the stop block (6) is movably disposed inside the limiting guide groove (7); The limiting guide groove (7) is configured to limit the stop (6) to restrict the degree of deformation of the leaf spring (2).

4. The human body model according to claim 3, characterized in that, The limiting guide groove (7) has a buffer pad (8) on one of its groove walls, and the buffer pad (8) is configured to abut against the stop block (6).

5. The human body model according to claim 2, characterized in that: The leaf spring support block (5) is provided with an elastic buckle (9); The free end of the leaf spring (2) is provided with an elastic buckle adapter (10), and the elastic buckle (9) is adapted to engage with the elastic buckle adapter (10) to fix the free end of the leaf spring (2).

6. The human body model according to claim 5, characterized in that, Both the elastic buckle (9) and the elastic buckle adapter (10) have chamfered surfaces that are adapted to abut each other.

7. The human body model according to claim 5, characterized in that, The elastic buckle (9) is provided with a toggle member (11), which is configured to be pushed by an external force to force the elastic buckle (9) to release the elastic buckle adapter (10).

8. The human body model according to claim 1, characterized in that, The bottom of the main body (1) is provided with several mounting guide grooves (12), and anti-slip pads (18) are installed in the mounting guide grooves (12). The anti-slip pads (18) have a flange on one side, which faces the inside of the main body (1).

9. The human body model according to claim 1, characterized in that, The torso body (1) has outwardly raised protrusions (13) on both shoulders and waist.

10. The human body model according to claim 1, characterized in that, Also includes: A sealing support (14) is disposed at the neck of the main body (1), and the sealing support (14) has an annular support surface; A sealing element (15) is fixed on the annular support surface. The sealing element (15) is annular and its side is a corrugated sealing surface. The head (16) is installed in the neck of the torso body (1). The head (16) is provided with a claw (17) inside. The claw (17) is adapted to abut against the back of the annular support surface to fix the sealing support (14). The pleated sealing surface is adapted to abut against the mounting cavity wall of the head (16).

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