Elastic measuring device for human skin detection

Abstract

The invention provides an elasticity measuring device for human skin detection, which comprises a base assembly, a constant force measuring mechanism and a skin fitting piece, and is characterized in that the base assembly comprises a fixed base, an adjusting seat and a control panel; wherein the adjusting seat is integrally formed at the top of the fixed base, and the axial direction of the adjusting seat is perpendicular to the center of the cambered surface of the fixed base; the skin attaching piece is attached to the surface of the skin of the arm and placed in the fixed base, so that the surface of the skin attaching piece is perpendicular to the axial direction of the constant force measuring mechanism by adjusting the position or angle of the arm; when the constant force measuring mechanism is pressed down to store force, the split type traction connecting mechanism is in butt joint, so that when the constant force measuring mechanism is reset upwards, the traction connecting mechanism is matched to provide constant pulling force in the vertical direction for the skin attaching piece and the skin, and then the constant force measuring mechanism can be used for measuring the skin attaching piece and the skin according to the final reset height and the corresponding scale of the constant force measuring mechanism. And the skin traction length variation is visually displayed.

Description

Technical Field

[0001] This invention relates to a skin elasticity measuring device, specifically an elasticity measuring device for human skin testing, and belongs to the field of skin elasticity measuring technology. Background Technology

[0002] Skin elasticity measurement is a technique that quantifies the skin's deformation and resilience under external forces using non-invasive instruments or simple methods. Its core function is to reflect the integrity of collagen and elastic fibers in the dermis and the skin's viscoelasticity. Among mainstream methods, the negative pressure suction method (such as the Cutometer) is the most commonly used. This method applies controlled negative pressure through a probe to lift the skin, optically measuring the lifting height, rebound speed and degree, and calculating parameters such as elasticity index and viscosity recovery. Other methods include torsional stretching, indentation, and ultrasonic elastography, which can accurately assess skin firmness and aging, providing objective data support for beauty and skincare, medical aesthetic treatments, cosmetic development, and skin health management.

[0003] However, when using the negative pressure adsorption method to measure the elasticity of the skin, there is a high requirement for the flatness of the human skin to ensure that the adsorption probe is fully in contact with the human skin and to avoid negative pressure leakage. Moreover, the negative pressure adsorption measuring instruments are mostly handheld and it is necessary to strictly ensure that the adsorption force is perpendicular to the skin surface. This can easily lead to measurement errors due to probe tilt during the measurement process, affecting the accuracy and reliability of the data.

[0004] A Chinese patent, titled "A Device and Method for Measuring Skin Elasticity" (Publication No. CN109561829B), discloses a technology for measuring skin elasticity. By using multiple optical thresholds and measuring and calculating the amount of skin deformation, the amount of skin deformation can be determined more accurately, thus more precisely determining skin elasticity. However, this device also uses negative pressure adsorption to measure skin elasticity, which inevitably requires direct contact between the device and human skin during the measurement process. Furthermore, to avoid negative pressure leakage, the contact pressure between the probe and the skin must be strictly controlled. This not only increases the complexity of operation but may also cause slight skin irritation due to uneven pressure or prolonged contact, especially for people with sensitive skin, thus posing certain limitations. Therefore, this paper proposes a device for measuring the elasticity of human skin. Summary of the Invention

[0005] In view of this, the present invention provides an elasticity measuring device for human skin detection to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0006] The technical solution of this invention is implemented as follows: an elasticity measuring device for human skin detection includes a base assembly, a constant force measuring mechanism, and a skin-adhesive component. The base assembly includes a fixed base, an adjusting base, and a control panel.

[0007] The adjusting seat is integrally formed on the top of the fixed base, with its axis perpendicular to the center of the arc surface of the fixed base. The control panel is installed on the outer side wall of the fixed base. The constant force measuring mechanism is detachably installed inside the adjusting seat and can be adjusted in height in conjunction with the adjusting seat. A connecting drive mechanism is installed inside the constant force measuring mechanism. The skin-adhesive piece is located below the adjusting seat and is used to conform to human skin. A separate traction connecting mechanism is provided between the connecting drive mechanism and the skin-adhesive piece, which is used to traction human skin in conjunction with the constant force measuring mechanism and the skin-adhesive piece.

[0008] The constant force measuring mechanism has a constant force up-and-down telescopic function, which is used to apply a constant vertical traction force to the human skin in conjunction with the traction connection mechanism and the skin-adhesive piece, and can directly display the change in the skin traction length.

[0009] The connecting drive mechanism is used to drive the traction connecting mechanism and control the split-type traction connecting mechanism to dock or separate.

[0010] More preferably, the constant force measuring mechanism includes a threaded sleeve, a measuring inner cylinder, an outer end cap, a constraint groove, a constant force coil spring, and a scale section;

[0011] The threaded sleeve is threadedly connected to the inner wall of the adjusting seat, and the outer wall of the measuring inner cylinder is slidably connected to the inner wall of the threaded sleeve. There are multiple constraint grooves and constant force coil springs. Several constraint grooves are located at the bottom of the outer wall of the measuring inner cylinder, and several constant force coil springs are arranged in a ring on the inner wall of the threaded sleeve, corresponding to the constraint grooves. The outer wall of the constant force coil spring is slidably connected to the constraint groove. The outer end cap is fitted onto the outer wall of the measuring inner cylinder and threadedly connected to the top of the threaded sleeve. The scale is located at the top of the outer wall of the measuring inner cylinder and is used to display the change in skin traction length.

[0012] More preferably, a detection mechanism is also installed between the constant force measuring mechanism and the skin-applying component, the detection mechanism including a coil holder, a detection coil, and a detection plate;

[0013] The device comprises two coil holders and two detection coils, which are detachably connected. The top of one coil holder is detachably connected to the bottom of the threaded sleeve. The two detection coils are respectively installed on the inner sidewalls of the two coil holders. The detection piece is located in the middle of the upper surface of the skin-contact piece.

[0014] Further preferably, four indicator lights are installed at the bottom of the measuring inner cylinder, and the four indicator lights emit light at a uniform angle and converge above the skin-contact piece. A guide slider is fixedly connected to the outer wall of the measuring inner cylinder, and a guide groove is opened on the inner wall of the threaded sleeve. The guide groove is offset from the constant force coil spring. The outer wall of the guide slider is slidably connected to the inner wall of the guide groove. A display screen is installed on the surface of the control panel, and a data processing module is installed on the inner wall of the control panel. An anti-slip pad is fixedly connected to the bottom of the fixed base.

[0015] More preferably, the shape of the skin-adhesive component is a straight line, an X-shape, a cross shape, or a circle.

[0016] More preferably, the connecting drive mechanism consists of a first inner end cover, a first central shaft, an inner sleeve, a guide groove, a guide shaft, and a first spring;

[0017] The first central shaft is slidably connected to the inner wall of the measuring inner cylinder, the first inner end cap is threaded to the top of the measuring inner cylinder, the inner sleeve is installed on the top of the inner wall of the measuring inner cylinder, the guide groove is opened on the inner wall of the inner sleeve, the guide shaft is installed on the inner wall of the first central shaft, the outer wall of the guide shaft is slidably connected to the inner wall of the guide groove, one end of the first spring is fixedly connected to the top of the outer wall of the first central shaft, and the other end of the first spring abuts against the inner wall of the measuring inner cylinder.

[0018] More preferably, the guide groove is composed of an upper guide groove, a lower guide groove, and an eccentric protrusion;

[0019] The upper and lower guide grooves are in two sets, both located on the inner sidewall of the inner sleeve. The two sets of upper and lower guide grooves are interconnected, forming annular guide grooves distributed vertically. There are several eccentric protrusions, which are respectively located in the two sets of upper and lower guide grooves, and are used to guide the guide shaft to slide clockwise or counterclockwise in one direction within the annular guide groove.

[0020] More preferably, the traction connection mechanism consists of a flared groove, an upper shield, a first magnetic block, a lower shield, and a second magnetic block;

[0021] The flared groove is located at the bottom of the measuring inner cylinder. The upper shield is fixedly connected to the bottom of the first central shaft. The first magnetic block is fixedly connected to the inner wall of the upper shield. The upper shield and the first magnetic block form an inverted "concave" structure. The lower shield is fixedly connected to the upper surface of the detection piece. The bottom of the detection piece is fixedly connected to the upper surface of the skin-contact piece. The second magnetic block is fixedly connected to the inner wall of the lower shield. The lower shield and the second magnetic block form a "convex" structure.

[0022] More preferably, the connecting drive mechanism consists of a second inner end cover, a second central shaft, a second spring, and a pressing part;

[0023] The second central shaft is slidably connected to the inner wall of the measuring inner cylinder, the second inner end cap is threadedly connected to the top of the measuring inner cylinder, one end of the second spring is fixedly connected to the top of the outer wall of the second central shaft, the other end of the second spring is fixedly connected to the top of the inner wall of the measuring inner cylinder, and the extrusion part is located at the bottom end of the second central shaft.

[0024] More preferably, the traction connection mechanism consists of two grippers, two pressure-bearing protrusions, two gripping parts, two third springs, two connecting platforms, two clamping grooves, and a mushroom head;

[0025] The two grippers are symmetrically hinged at one end to the bottom of the inner wall of the measuring cylinder. The two pressure-bearing protrusions are located on the top of the adjacent side of the two grippers. The bottom of the squeezing part abuts against the surface of the two pressure-bearing protrusions. The two gripping parts are located at the bottom of the adjacent side of the two grippers. The two clamping grooves are respectively opened in the middle of the adjacent side of the two gripping parts. The two connecting platforms are respectively located on the non-adjacent side of the two grippers. The two third springs are respectively fixedly connected between the two connecting platforms and the inner wall of the measuring cylinder. The grippers, pressure-bearing protrusions, gripping parts, connecting platforms and clamping grooves are integrally formed. The bottom end of the mushroom head penetrates the detection piece and is fixedly connected to the middle of the upper surface of the skin-adhesive piece. The inner wall of the detection piece is fixedly connected to the bottom of the outer wall of the mushroom head. The inner wall of the clamping groove is engaged with the bottom of the outer wall of the mushroom head.

[0026] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions:

[0027] I. This invention applies a skin patch to the surface of the arm skin and places it in a fixed base. By adjusting the arm position or angle, the surface of the skin patch is made perpendicular to the axis of the constant force measuring mechanism. This avoids the problem of probe tilting caused by hand shaking or unstable force application during the measurement process of handheld measuring instruments, making the measurement operation more stable and reducing the impact of unstable factors on the measurement accuracy.

[0028] Second, this invention uses a constant force measuring mechanism to store force while simultaneously connecting a split traction connection mechanism. This allows the constant force measuring mechanism to provide a constant vertical tension to the skin-attachment and skin when it resets upwards. Then, the change in skin traction length can be visually displayed using the final reset height of the constant force measuring mechanism and the corresponding scale.

[0029] Third, the present invention drives the traction connection mechanism through the connection drive mechanism so that during the skin elasticity measurement process, the split traction connection mechanism is separated by the connection drive mechanism, the connection between the constant force measuring mechanism and the human skin is released, and the pulled skin is naturally reset so as to observe the skin fall-back speed.

[0030] The above overview is for illustrative purposes only and is not intended to limit the scope of the invention in any way. Further aspects, embodiments, and features of the invention will become apparent from the accompanying drawings and the following detailed description, in addition to the illustrative aspects, embodiments, and features described above. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a structural diagram of Embodiment 1 of the present invention;

[0033] Figure 2 This is a first-view sectional view of Embodiment 1 of the present invention;

[0034] Figure 3 This is a second-perspective sectional view of Embodiment 1 of the present invention;

[0035] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of area A structure;

[0036] Figure 5 This is an isometric view of the inner cylinder of the present invention.

[0037] Figure 6 For the present invention Figure 5 Exploded view;

[0038] Figure 7 This is an isometric view of the first central axis of the present invention;

[0039] Figure 8 This is a cross-sectional view of the first central axis of the present invention.

[0040] Figure 9 This is a schematic diagram of the structure of the lower shield and the second magnetic block of the present invention;

[0041] Figure 10 This is an isometric view of the threaded sleeve of the present invention;

[0042] Figure 11This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0043] Figure 12 This is a cross-sectional structural diagram of Embodiment 2 of the present invention;

[0044] Figure 13 For the present invention Figure 12 Enlarged schematic diagram of the structure of region B;

[0045] Figure 14 This is a schematic diagram of the structure of the second inner end cap and the second central shaft of the present invention;

[0046] Figure 15 For the present invention Figure 14 Exploded view;

[0047] Figure 16 This is a schematic diagram of the mushroom head structure of the present invention;

[0048] Figure 17 This is a schematic diagram of the shape of the skin-adhesive part of the present invention.

[0049] Reference numerals: 1. Base assembly; 2. Constant force measuring mechanism; 3. Connecting drive mechanism; 4. Skin-contact component; 5. Traction connecting mechanism; 6. Detection mechanism; 101. Fixed base; 102. Adjusting seat; 103. Control panel; 201. Threaded sleeve; 202. Measuring inner cylinder; 203. Outer end cap; 204. Constraint groove; 205. Constant force coil spring; 206. Scale section; 301. First inner end cap; 302. First central shaft; 303. Inner sleeve; 304. Guide groove; 341. Upper guide groove; 342. Lower guide groove; 343. Eccentric protrusion; 305. Guide shaft; 306. First spring; 5 01. Flared groove; 502. Upper shield; 503. First magnetic block; 504. Lower shield; 505. Second magnetic block; 601. Coil holder; 602. Detection coil; 603. Detection plate; 71. Indicator light; 72. Guide slider; 73. Guide groove; 74. Display screen; 75. Data processing module; 76. Anti-slip pad; 311. Second inner end cover; 312. Second central shaft; 313. Second spring; 314. Extrusion part; 511. Gripper; 512. Pressure-bearing protrusion; 513. Gripping part; 514. Third spring; 515. Connecting platform; 516. Clamping groove; 517. Mushroom head. Detailed Implementation

[0050] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0051] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0052] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0053] Example 1

[0054] like Figures 1-10 As shown, this embodiment of the invention provides an elasticity measuring device for human skin detection, including a base assembly 1, a constant force measuring mechanism 2, and a skin-adhesive component 4. The base assembly 1 includes a fixed base 101, an adjusting base 102, and a control panel 103.

[0055] The adjusting seat 102 is integrally formed on the top of the fixed base 101, and its axis is perpendicular to the center of the arc surface of the fixed base 101. The control panel 103 is installed on the outer side wall of the fixed base 101. The constant force measuring mechanism 2 is detachably installed inside the adjusting seat 102 and can be adjusted in height in conjunction with the adjusting seat 102. The constant force measuring mechanism 2 is equipped with a connecting drive mechanism 3. The skin-adhesive piece 4 is located below the adjusting seat 102 and is used to adhere to human skin. A separate traction connecting mechanism 5 is provided between the connecting drive mechanism 3 and the skin-adhesive piece 4 to cooperate with the constant force measuring mechanism 2 and the skin-adhesive piece 4 to traction human skin.

[0056] Among them, the constant force measuring mechanism 2 has a constant force up and down extension function, which is used to work with the traction connection mechanism 5 and the skin-adhesive piece 4 to apply a vertical constant traction force to the human skin, and can directly display the change in skin traction length.

[0057] The connecting drive mechanism 3 is used to drive the traction connecting mechanism 5 and control the split traction connecting mechanism 5 to dock or separate.

[0058] In one embodiment, the constant force measuring mechanism 2 includes a threaded sleeve 201, a measuring inner cylinder 202, an outer end cap 203, a constraint groove 204, a constant force coil spring 205, and a scale section 206.

[0059] The threaded sleeve 201 is threadedly connected to the inner wall of the adjusting seat 102, and the outer wall of the measuring inner cylinder 202 is slidably connected to the inner wall of the threaded sleeve 201. There are several constraint grooves 204 and constant force coil springs 205. Several constraint grooves 204 are opened at the bottom of the outer wall of the measuring inner cylinder 202, and several constant force coil springs 205 are installed in a ring on the inner wall of the threaded sleeve 201 and are correspondingly set with the constraint grooves 204. The outer wall of the constant force coil spring 205 is slidably connected to the constraint groove 204. The outer end cap 203 is sleeved on the outer wall of the measuring inner cylinder 202 and threadedly connected to the top of the threaded sleeve 201. The scale part 206 is opened at the top of the outer wall of the measuring inner cylinder 202 and is used to display the change in skin traction length.

[0060] By rotating the threaded sleeve 201, the measuring inner cylinder 202 moves downward as a whole, so that the distance between the measuring inner cylinder 202 and the skin-adhesive piece 4 can be adjusted for different skin positions or different people. The scale part 206 is used to read the height data of the measuring inner cylinder 202 after resetting.

[0061] In one embodiment, a detection mechanism 6 is also installed between the constant force measuring mechanism 2 and the skin-adhesive part 4. The detection mechanism 6 includes a coil holder 601, a detection coil 602 and a detection piece 603.

[0062] There are two coil seats 601 and two detection coils 602. The two coil seats 601 are detachably connected. The top of one coil seat 601 is detachably connected to the bottom of the threaded sleeve 201. The two detection coils 602 are respectively installed on the inner sidewalls of the two coil seats 601. The detection piece 603 is located in the middle of the upper surface of the skin-adhesive piece 4.

[0063] The detection coil 602 is used to detect the passing detection piece 603 and generate a feedback signal.

[0064] In one embodiment, four indicator lights 71 are installed at the bottom of the measuring inner cylinder 202. The four indicator lights 71 emit light at a uniform angle and converge above the skin-contacting part 4. A guide slider 72 is fixedly connected to the outer wall of the measuring inner cylinder 202. A guide groove 73 is opened on the inner wall of the threaded sleeve 201. The guide groove 73 is offset from the constant force coil spring 205. The outer wall of the guide slider 72 is slidably connected to the inner wall of the guide groove 73. A display screen 74 is installed on the surface of the control panel 103. A data processing module 75 is installed on the inner wall of the control panel 103. An anti-slip pad 76 is fixedly connected to the bottom of the fixed base 101.

[0065] The anti-slip pad 76 is provided to increase the friction between the fixed base 101 and the placement plane. The guide slider 72 and guide groove 73 are provided to guide the sliding of the measuring inner cylinder 202 in the threaded sleeve 201 and to prevent the measuring inner cylinder 202 from rotating in the threaded sleeve 201. The display screen 74 is provided to display the data processed by the data processing module 75.

[0066] In one embodiment, the shape of the skin-adhesive component 4 is straight, X-shaped, cross-shaped, or circular, as shown in the specific shape... Figure 17 As shown, the material of the skin-adhesive part 4 can be silicone, elastic fabric, PU (polyurethane) film or PVC film.

[0067] In one embodiment, the connecting drive mechanism 3 consists of a first inner end cover 301, a first central shaft 302, an inner sleeve 303, a guide groove 304, a guide shaft 305, and a first spring 306;

[0068] The first central shaft 302 is slidably connected to the inner wall of the measuring inner cylinder 202, the first inner end cap 301 is threadedly connected to the top of the measuring inner cylinder 202, the inner sleeve 303 is installed on the top of the inner wall of the measuring inner cylinder 202, the guide groove 304 is opened on the inner wall of the inner sleeve 303, the guide shaft 305 is installed on the inner wall of the first central shaft 302, the outer wall of the guide shaft 305 is slidably connected to the inner wall of the guide groove 304, one end of the first spring 306 is fixedly connected to the top of the outer wall of the first central shaft 302, and the other end of the first spring 306 abuts against the inner wall of the measuring inner cylinder 202.

[0069] The guide groove 304 consists of an upper guide groove 341, a lower guide groove 342, and an eccentric protrusion 343;

[0070] There are two sets of upper guide grooves 341 and lower guide grooves 342, both of which are opened on the inner side wall of the inner sleeve 303. The two sets of upper guide grooves 341 and lower guide grooves 342 are interconnected to form annular guide grooves distributed vertically. There are several eccentric protrusions 343, which are respectively set in the two sets of upper guide grooves 341 and lower guide grooves 342, and are used to guide the guide shaft 305 to slide clockwise or counterclockwise in one direction within the annular guide groove.

[0071] The first central shaft 302, under pressure, drives the guide shaft 305 to move along the guide groove 304, and further compresses the first spring 306. When the guide shaft 305 slides to the lowest point along the lower guide groove 342, the first central shaft 302 is released, and the first spring 306 pushes the first central shaft 302 upward. The moving first central shaft 302 drives the guide shaft 305 to slide from the lower guide groove 342 into the upper guide groove 341. The eccentric protrusion 343 is provided for eccentric guidance to prevent the guide shaft 305 from sliding backward into the lower guide groove 342.

[0072] In one embodiment, the traction connection mechanism 5 is composed of a flared groove 501, an upper shielding cover 502, a first magnetic block 503, a lower shielding cover 504, and a second magnetic block 505;

[0073] Among them, the flared groove 501 is opened at the bottom end of the measuring inner cylinder 202, the upper shielding cover 502 is fixedly connected to the bottom end of the first central axis 302, the first magnetic block 503 is fixedly connected to the inner side wall of the upper shielding cover 502, the upper shielding cover 502 and the first magnetic block 503 form an inverted "concave" structure, the lower shielding cover 504 is fixedly connected to the upper surface of the detection piece 603, the bottom of the detection piece 603 is fixedly connected to the upper surface of the skin-attaching piece 4, the second magnetic block 505 is fixedly connected to the inner side wall of the lower shielding cover 504, and the lower shielding cover 504 and the second magnetic block 505 form a "convex" structure;

[0074] Through the mutual attraction of the first magnetic block 503 and the second magnetic block 505, the upper shielding cover 502, the first magnetic block 503, the lower shielding cover 504, and the second magnetic block 505 form a closed "square" structure, and a shielding layer can be formed outside the first magnetic block 503 and the second magnetic block 505 by the upper shielding cover 502 and the lower shielding cover 504, so as to avoid interfering with the detection accuracy of the detection coil 602.

[0075] When the present invention works: according to actual needs, the skin-attaching piece 4 is attached to the back of the human hand, the outer side of the forearm or the inner side of the upper arm, then the arm is moved, the skin-attaching piece 4 is placed into the fixed base 101, and the skin-attaching piece 4 is located directly below the constant force measuring mechanism 2. Then, by rotating the threaded sleeve 201, the measuring inner cylinder 202 moves downward as a whole, so as to adjust the distance between the measuring inner cylinder 202 and the skin-attaching piece 4 for different positions of the skin or different people, and the adjustment height of the threaded sleeve 201 can be assisted in judgment by using the light convergence point irradiated by the cursor lamp 71; when the distance adjustment is completed,配合光标灯71照射的光线,通过调节手臂位置或角度,使多角度光标灯71照射汇集的点向第二磁块505的轴心移动,进而控制贴肤件4的表面中心与恒力测量机构2的轴向呈垂直状态。(There is an error in this sentence in Chinese. It should be something like "cooperating with the light irradiated by the cursor lamp 71, by adjusting the position or angle of the arm, making the point where the multi-angle cursor lamp 71 irradiates and converges move towards the axis of the second magnetic block 505, thereby controlling the surface center of the skin-attaching piece 4 to be perpendicular to the axis of the constant force measuring mechanism 2.")

[0076] When the verticality adjustment is completed, the measuring inner cylinder 202 is moved to drive the constant force spring 205 and the first magnetic block 503 to move downward. The moving constant force spring 205 expands and stores energy downward, and the moving first magnetic block 503 and the second magnetic block 505 attract each other, so that the upper shielding cover 502, the first magnetic block 503, the lower shielding cover 504, and the second magnetic block 505 form a closed "square" structure, and a shielding layer can be formed outside the first magnetic block 503 and the second magnetic block 505 by using the upper shielding cover 502 and the lower shielding cover 504, so as to avoid interfering with the detection accuracy of the detection coil 602.

[0077] After the first magnetic block 503 and the second magnetic block 505 are fully attracted, the measuring inner cylinder 202 is released, and the stored constant force spring 205 provides a constant upward thrust to the measuring inner cylinder 202 as a whole. This allows the traction connection mechanism 5, which moves synchronously with the measuring inner cylinder 202, to work with the skin-adhesive piece 4 to provide a constant vertical upward pulling force to the human skin. When the detection piece 603 moves with the skin-adhesive piece 4 to the detection coil 602 located below, the detection coil 602 identifies the detection piece 603 and feeds the identification result back to the data processing module 75. This allows for correction of the initial height of skin stretching. The data processing module 75 also times the time it takes for the detection piece 603 to pass through the first detection coil 602. When the second detection piece 603 passes through the detection coil 602 located above, the data processing module 75 performs a second timing. By combining the two timing times with the distance between the two detection coils 602, the skin stretching speed can be calculated.

[0078] When the measuring inner cylinder 202 is obstructed from resetting upwards, the change in skin traction length can be directly read using the scale 206 on the measuring inner cylinder 202. This read value can then be used to calculate the specific elastic modulus E of the human skin. The read value can be entered into the data processing module 75 via the control panel 103. The elastic modulus E is calculated using the expression E=(F*L0) / (A*ΔL)-V. Here, F represents the constant upward thrust provided to the measuring inner cylinder 202 by the constant force coil spring 205; L0 is the original length, i.e., the initial height of the skin-adhesive piece 4; A is the force-bearing area, i.e., the area affected by the skin-adhesive piece 4; V is the material influence value of the skin-adhesive piece 4; and ΔL is the recorded change in skin traction length. F, L0, A, and V are all quantitative values.

[0079] Then, by holding the measuring inner cylinder 202, the first central shaft 302 is pressed. Under the pressure, the first central shaft 302 drives the guide shaft 305 to move along the guide groove 304, and further compresses the first spring 306. When the guide shaft 305 slides to the lowest point along the lower guide groove 342, the first central shaft 302 is released. The stored force of the first spring 306 pushes the first central shaft 302 upward. The moving first central shaft 302 drives the guide shaft 305 to slide from the lower guide groove 342 into the upper guide groove 341. The eccentric protrusion 343 is used for eccentric guidance to prevent the guide shaft 305 from sliding back into the lower guide groove 342. At the same time, the first spring 306 provides an upward thrust to the first central shaft 302, which drives the first magnetic block 503 and the upper shield 502 to move upward, so that the first magnetic block 503 and the second magnetic block 505 are separated. The flared groove 501 is used to block the detection piece 603, preventing the second magnetic block 505 from continuing to move upward with the first magnetic block 503, and preventing excessive upward traction force, which would affect comfort.

[0080] When the first magnetic block 503 separates from the second magnetic block 505, the pulled human skin falls naturally. During the fall, the detection coil 602, in conjunction with the data processing module 75, times the time it takes for the detection piece 603 to pass through the two detection coils 602 in the opposite direction. The timing data is used to calculate the speed at which the human skin falls back, and the calculation result is displayed on the display screen 74 for reading.

[0081] It should be noted that during the skin retraction, the skin patch 4, detection plate 603, lower shield 504, and second magnetic block 505 will inevitably affect the calculation result of the skin retraction speed. However, the influence value of the skin patch 4, detection plate 603, lower shield 504, and second magnetic block 505 remains unchanged. Therefore, by subtracting the influence value from the calculated retraction speed, the actual skin retraction speed can be obtained.

[0082] The anti-slip pad 76 is provided to increase the friction between the fixed base 101 and the placement plane. The guide slider 72 and guide groove 73 are provided to guide the sliding of the measuring inner cylinder 202 in the threaded sleeve 201 and to prevent the measuring inner cylinder 202 from rotating in the threaded sleeve 201. The outer end cap 203 is provided to cooperate with the guide slider 72 to constrain the measuring inner cylinder 202 in the threaded sleeve 201.

[0083] Example 2

[0084] like Figures 1-16 As shown, this embodiment of the invention also provides an elasticity measuring device for human skin detection, including a base assembly 1, a constant force measuring mechanism 2 and a skin-adhesive component 4. The base assembly 1 includes a fixed base 101, an adjusting base 102 and a control panel 103.

[0085] The adjusting seat 102 is integrally formed on the top of the fixed base 101, and its axis is perpendicular to the center of the arc surface of the fixed base 101. The control panel 103 is installed on the outer side wall of the fixed base 101. The constant force measuring mechanism 2 is detachably installed inside the adjusting seat 102 and can be adjusted in height in conjunction with the adjusting seat 102. The constant force measuring mechanism 2 is equipped with a connecting drive mechanism 3. The skin-adhesive piece 4 is located below the adjusting seat 102 and is used to adhere to human skin. A separate traction connecting mechanism 5 is provided between the connecting drive mechanism 3 and the skin-adhesive piece 4 to cooperate with the constant force measuring mechanism 2 and the skin-adhesive piece 4 to traction human skin.

[0086] Among them, the constant force measuring mechanism 2 has a constant force up and down extension function, which is used to work with the traction connection mechanism 5 and the skin-adhesive piece 4 to apply a vertical constant traction force to the human skin, and can directly display the change in skin traction length.

[0087] The connecting drive mechanism 3 is used to drive the traction connecting mechanism 5 and control the split traction connecting mechanism 5 to dock or separate.

[0088] In one embodiment, the connecting drive mechanism 3 consists of a second inner end cap 311, a second central shaft 312, a second spring 313, and a pressing part 314;

[0089] The second central shaft 312 is slidably connected to the inner wall of the measuring inner cylinder 202, the second inner end cap 311 is threadedly connected to the top of the measuring inner cylinder 202, one end of the second spring 313 is fixedly connected to the top of the outer wall of the second central shaft 312, the other end of the second spring 313 is fixedly connected to the top of the inner wall of the measuring inner cylinder 202, and the extrusion part 314 is provided at the bottom end of the second central shaft 312.

[0090] The traction connection mechanism 5 consists of two grippers 511, two pressure-bearing protrusions 512, two gripping parts 513, two third springs 514, two connecting platforms 515, two clamping grooves 516, and a mushroom head 517.

[0091] Two grippers 511 are symmetrically hinged at one end to the bottom of the inner wall of the measuring inner cylinder 202. Two pressure-bearing protrusions 512 are located on the top of adjacent sides of the two grippers 511. The bottom of the squeezing part 314 abuts against the surface of the two pressure-bearing protrusions 512. Two gripping parts 513 are located at the bottom of adjacent sides of the two grippers 511. Two clamping grooves 516 are respectively opened in the middle of adjacent sides of the two gripping parts 513. Two connecting platforms 515 are respectively located on the non-adjacent sides of the two grippers 511. The third spring 514 is fixedly connected between the two connecting platforms 515 and the inner wall of the measuring inner cylinder 202. The gripper 511, the pressure-bearing protrusion 512, the grasping part 513, the connecting platform 515 and the clamping groove 516 are integrally formed structures. The bottom end of the mushroom head 517 passes through the detection piece 603 and is fixedly connected to the middle of the upper surface of the skin-adhesive part 4. The inner side wall of the detection piece 603 is fixedly connected to the bottom of the outer side wall of the mushroom head 517. The inner side wall of the clamping groove 516 is engaged with the bottom of the outer side wall of the mushroom head 517.

[0092] The difference from Embodiment 1 is as follows: After the inner cylinder 202 is pressed down to the specified height, the second spring 313 is compressed by pressing the second central shaft 312, and the extrusion part 314 is used to extrude the two pressure-bearing protrusions 512. Under the pressure, the two pressure-bearing protrusions 512 respectively drive the two grippers 511 to deflect, so that the gripping parts 513 on the two grippers 511 unfold, so that the unfolded gripping parts 513 can pass over the top of the mushroom head 517. At the same time, the deflected grippers 511, in conjunction with the connecting platform 515, drive the third spring 514 to compress and store force. Then, when the pressure on the pressure-bearing protrusions 512 is released by releasing the second central shaft 312, the compressed third spring 514 drives the grippers 511 to reset. The reset grippers 511 drive the gripping parts 513, in conjunction with the clamping groove 516, to clamp the bottom of the outer wall of the mushroom head 517, thereby completing the connection operation of the traction connection mechanism 5, and then the elasticity measurement operation can be performed.

[0093] When it is necessary to release the mushroom head 517 and allow the skin to fall back, the second central shaft 312 is pressed a second time to push the pressure-bearing protrusion 512 to drive the gripper 511 to deflect again, thereby releasing the gripped mushroom head 517 and allowing the pulled skin to fall back downwards. During the fall, the fall speed can be collected and calculated.

[0094] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An elasticity measuring device for human skin detection, comprising a base assembly, a constant force measuring mechanism, and a skin-adhesive component, characterized in that, The base assembly includes a fixed base, an adjustment base, and a control panel; The adjusting seat is integrally formed on the top of the fixed base, with its axis perpendicular to the center of the arc surface of the fixed base. The control panel is installed on the outer side wall of the fixed base. The constant force measuring mechanism is detachably installed inside the adjusting seat and can be adjusted in height in conjunction with the adjusting seat. A connecting drive mechanism is installed inside the constant force measuring mechanism. The skin-adhesive piece is located below the adjusting seat and is used to conform to human skin. A separate traction connecting mechanism is provided between the connecting drive mechanism and the skin-adhesive piece, which is used to traction human skin in conjunction with the constant force measuring mechanism and the skin-adhesive piece. The constant force measuring mechanism has a constant force up-and-down telescopic function, which is used to apply a constant vertical traction force to human skin in conjunction with the traction connection mechanism and the skin-adhesive piece, and can directly display the change in skin traction length. The connecting drive mechanism is used to drive the traction connecting mechanism and control the split-type traction connecting mechanism to dock or separate.

2. The elasticity measuring device for human skin detection according to claim 1, characterized in that: The constant force measuring mechanism includes a threaded sleeve, a measuring inner cylinder, an outer end cap, a constraint groove, a constant force coil spring, and a scale section. The threaded sleeve is threadedly connected to the inner wall of the adjusting seat, and the outer wall of the measuring inner cylinder is slidably connected to the inner wall of the threaded sleeve. There are multiple constraint grooves and constant force coil springs. Several constraint grooves are located at the bottom of the outer wall of the measuring inner cylinder, and several constant force coil springs are arranged in a ring on the inner wall of the threaded sleeve, corresponding to the constraint grooves. The outer wall of the constant force coil spring is slidably connected to the constraint groove. The outer end cap is fitted onto the outer wall of the measuring inner cylinder and threadedly connected to the top of the threaded sleeve. The scale is located at the top of the outer wall of the measuring inner cylinder and is used to display the change in skin traction length.

3. The elasticity measuring device for human skin detection according to claim 2, characterized in that: A detection mechanism is also installed between the constant force measuring mechanism and the skin-applying component. The detection mechanism includes a coil holder, a detection coil, and a detection plate. The device comprises two coil holders and two detection coils, which are detachably connected. The top of one coil holder is detachably connected to the bottom of the threaded sleeve. The two detection coils are respectively installed on the inner sidewalls of the two coil holders. The detection piece is located in the middle of the upper surface of the skin-contact piece.

4. The elasticity measuring device for human skin detection according to claim 3, characterized in that: Four indicator lights are installed at the bottom of the measuring inner cylinder. All four indicator lights emit light at a uniform angle and converge above the skin-contact piece. A guide slider is fixedly connected to the outer wall of the measuring inner cylinder. A guide groove is formed on the inner wall of the threaded sleeve. The guide groove is offset from the constant force coil spring. The outer wall of the guide slider is slidably connected to the inner wall of the guide groove. A display screen is installed on the surface of the control panel. A data processing module is installed on the inner wall of the control panel. An anti-slip pad is fixedly connected to the bottom of the fixed base.

5. The elasticity measuring device for human skin detection according to claim 3, characterized in that: The shape of the skin-adhesive patch can be straight, X-shaped, cross-shaped, or circular.

6. The elasticity measuring device for human skin detection according to any one of claims 3-5, characterized in that: The connecting drive mechanism consists of a first inner end cover, a first central shaft, an inner sleeve, a guide groove, a guide shaft, and a first spring. The first central shaft is slidably connected to the inner wall of the measuring inner cylinder, the first inner end cap is threaded to the top of the measuring inner cylinder, the inner sleeve is installed on the top of the inner wall of the measuring inner cylinder, the guide groove is opened on the inner wall of the inner sleeve, the guide shaft is installed on the inner wall of the first central shaft, the outer wall of the guide shaft is slidably connected to the inner wall of the guide groove, one end of the first spring is fixedly connected to the top of the outer wall of the first central shaft, and the other end of the first spring abuts against the inner wall of the measuring inner cylinder.

7. The elasticity measuring device for human skin detection according to claim 6, characterized in that: The guide groove is composed of an upper guide groove, a lower guide groove, and an eccentric protrusion; The upper and lower guide grooves are in two sets, both located on the inner sidewall of the inner sleeve. The two sets of upper and lower guide grooves are interconnected, forming annular guide grooves distributed vertically. There are several eccentric protrusions, which are respectively located in the two sets of upper and lower guide grooves, and are used to guide the guide shaft to slide clockwise or counterclockwise in one direction within the annular guide groove.

8. The elasticity measuring device for human skin detection according to claim 6, characterized in that: The traction connection mechanism consists of a flared groove, an upper shield, a first magnetic block, a lower shield, and a second magnetic block; The flared groove is located at the bottom of the measuring inner cylinder. The upper shield is fixedly connected to the bottom of the first central shaft. The first magnetic block is fixedly connected to the inner wall of the upper shield. The upper shield and the first magnetic block form an inverted "concave" structure. The lower shield is fixedly connected to the upper surface of the detection piece. The bottom of the detection piece is fixedly connected to the upper surface of the skin-contact piece. The second magnetic block is fixedly connected to the inner wall of the lower shield. The lower shield and the second magnetic block form a "convex" structure.

9. The elasticity measuring device for human skin detection according to any one of claims 3-5, characterized in that: The connecting drive mechanism consists of a second inner end cover, a second central shaft, a second spring, and a pressing part; The second central shaft is slidably connected to the inner wall of the measuring inner cylinder, the second inner end cap is threadedly connected to the top of the measuring inner cylinder, one end of the second spring is fixedly connected to the top of the outer wall of the second central shaft, the other end of the second spring is fixedly connected to the top of the inner wall of the measuring inner cylinder, and the extrusion part is located at the bottom end of the second central shaft.

10. The elasticity measuring device for human skin detection according to claim 9, characterized in that: The traction connection mechanism consists of two grippers, two pressure-bearing protrusions, two gripping parts, two third springs, two connecting platforms, two clamping grooves, and a mushroom head; The two grippers are symmetrically hinged at one end to the bottom of the inner wall of the measuring cylinder. The two pressure-bearing protrusions are located on the top of the adjacent side of the two grippers. The bottom of the squeezing part abuts against the surface of the two pressure-bearing protrusions. The two gripping parts are located at the bottom of the adjacent side of the two grippers. The two clamping grooves are respectively opened in the middle of the adjacent side of the two gripping parts. The two connecting platforms are respectively located on the non-adjacent side of the two grippers. The two third springs are respectively fixedly connected between the two connecting platforms and the inner wall of the measuring cylinder. The grippers, pressure-bearing protrusions, gripping parts, connecting platforms and clamping grooves are integrally formed. The bottom end of the mushroom head penetrates the detection piece and is fixedly connected to the middle of the upper surface of the skin-adhesive piece. The inner wall of the detection piece is fixedly connected to the bottom of the outer wall of the mushroom head. The inner wall of the clamping groove is engaged with the bottom of the outer wall of the mushroom head.

Images