A handwriting 3D profile measuring device mounting housing structure

Abstract

The utility model provides a handwriting 3D contour measurement equipment installation casing structure, include: casing, be provided with a front cover to front, and detection platform for placing handwriting sample, set up in the handwriting scanning device of casing, including setting up laser scanning module on the upper portion of frame, set up on the dustproof window assembly of front cover, dustproof window assembly includes the dustproof window of slidable setting up on the front cover, one spring is connected to the both ends side wall of dustproof window, another end of spring sets up on the top of front cover, the bottom of dustproof window is provided with a magnetic attraction piece, be provided with the magnetic attraction spare corresponding with magnetic attraction piece on the front cover, magnetic attraction piece and magnetic attraction spare magnetism suction fixed, be provided with an illumination module in the casing, be provided with a micro -switch on the front cover, micro -switch and illumination module electric connection, when dustproof window touches micro -switch, closes illumination module, avoids the illumination module influence appraisal result, reduces the error.

Description

Technical Field

[0001] This utility model relates to a mounting housing structure for a handwriting 3D contour measurement device. Background Technology

[0002] Handwriting identification (also known as handwriting examination or writer identification) is an important branch of forensic science. It involves systematically comparing two or more handwriting materials to determine whether they were written by the same person, providing evidence for investigation, trial, and civil disputes. However, handwriting identification by experts is time-consuming and resource-intensive. Therefore, automated equipment can now be used for handwriting identification by scanning the 3D contour of the handwriting, which can improve the identification efficiency. However, existing equipment still has the following problems: lighting equipment has a certain impact on handwriting identification, so it is necessary to turn off the lighting equipment during the detection process. Existing equipment lacks a linkage switch to turn off the lighting equipment. To address the above problems, this utility model designs a mounting shell structure for a handwriting 3D contour measurement device. Utility Model Content

[0003] This invention provides a mounting housing structure for a handwriting 3D contour measurement device, which can effectively solve the above-mentioned problems.

[0004] This utility model is implemented as follows: A mounting housing structure for a handwriting 3D contour measuring device, comprising: The casing has a front cover at the front, and The testing platform is used to hold handwriting samples; The handwriting scanning device, which is installed inside the housing, includes a laser scanning module installed above the frame. The laser scanning module is used to scan and identify handwriting samples placed on the detection platform. A dustproof window assembly is installed on the front cover. The dustproof window assembly includes a dustproof window that is slidably installed on the front cover. A spring is connected to each of the two side walls of the dustproof window. The other end of the spring is located on the top of the front cover. A magnetic block is located at the bottom of the dustproof window. A magnetic component corresponding to the magnetic block is provided on the front cover. The magnetic block and the magnetic component are magnetically attracted and fixed together. A lighting module is installed inside the housing. A micro switch is provided on the front cover. The micro switch is electrically connected to the lighting module. When the dustproof window touches the micro switch, the lighting module is turned off.

[0005] As a further improvement, a slider is provided on both sides of the dustproof window, and a corresponding slider is provided on the front cover, the slider being slidably disposed within the slide rail.

[0006] As a further improvement, a frame is installed inside the housing, a lifting mechanism is installed on the frame, and a testing platform is installed on the lifting mechanism.

[0007] As a further improvement, a distance sensing device is provided on the handwriting scanning device. The distance sensing device includes a distance sensor and an adjustment unit. The distance sensor is located on the handwriting scanning device and is used to detect the distance between the laser scanning module and the handwriting sample on the detection platform.

[0008] As a further improvement, the handwriting scanning device also includes an auxiliary scanning module mounted on the side wall of the frame.

[0009] As a further improvement, heat dissipation vents are provided on both sides of the housing.

[0010] The beneficial effects of this utility model are as follows: An illumination module is installed inside the housing, and a micro switch is installed on the front cover. The micro switch is electrically connected to the illumination module. When the dustproof window touches the micro switch, the illumination module is turned off, preventing the illumination equipment from affecting the test results during the testing process. A spring is connected to the side walls at both ends of the dustproof window, and the other end of the spring is located on the top of the front cover. A magnetic block is installed at the bottom of the dustproof window, and a corresponding magnetic component is installed on the front cover. The magnetic attraction facilitates the fixation of the dustproof window, and the spring provides damping, making it easy to open the dustproof window and preventing damage to the micro switch during use. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the shell provided in an embodiment of this utility model.

[0014] Figure 3 This is a schematic diagram of the dustproof window assembly structure provided in this embodiment of the utility model.

[0015] Figure 4 This is a schematic diagram of the lifting platform structure provided in an embodiment of the present utility model.

[0016] Figure 5 yes Figure 4 A magnified structural diagram of point A in the middle.

[0017] The attached diagram is labeled as follows: 10. Housing; 11. Frame; 12. Front cover; 121. Slide rail; 20. Lifting platform; 21. Lifting mechanism; 211. Base plate; 212. Lifting cylinder; 213. Scissor hinge assembly; 2131. Sliding rod; 2132. First lifting rod; 2133. Fixed rod; 2134. Second lifting rod; 22. Detection platform; 221. Scanning positioning frame; 30. Handwriting scanning device; 31. Laser scanning module; 32. Auxiliary scanning module; 40. Distance sensing device; 41. Distance sensor; 50. Dustproof window assembly; 51. Dustproof window; 511. Slider; 52. Spring; 53. Magnetic block; 54. Magnetic component; 60. Micro switch. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0019] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] Reference Figures 1-5 As shown, a fixed-distance lifting structure for a handwriting 3D contour measuring device includes: Housing 10, and frame 11 disposed within housing 10; The lifting platform 20 includes a lifting mechanism 21 mounted on the frame 11 and a detection platform 22 mounted on the lifting mechanism 21; The handwriting scanning device 30 includes a laser scanning module 31 disposed above the frame 11. The laser scanning module 31 is used to scan and identify handwriting samples placed on the detection platform 22. The distance sensing device 40 includes a distance sensor 41 and an adjustment unit. The distance sensor 41 is disposed on the handwriting scanning device 30 and is used to detect the distance between the laser scanning module 31 and the handwriting sample on the detection platform 22. The adjustment unit is used to receive the signal from the distance sensor 41 and control the lifting mechanism 21 to lift and lower, thereby adjusting the distance between the laser scanning module 31 and the handwriting sample on the detection platform 22.

[0021] Reference Figure 2 As shown, the handwriting scanning device 30 also includes an auxiliary scanning module 32 disposed on the side wall of the frame 11. The auxiliary scanning module 32 can work in conjunction with the laser scanning module 31 at the top to capture the contour information of the handwriting from different angles. This helps to build a more complete and accurate 3D model, especially for the side wall contours and deep indentations of the strokes. A single-angle scan may have shadows or occluded areas. Lateral auxiliary scanning can effectively make up for this deficiency and obtain more comprehensive three-dimensional information of the handwriting. Multi-source data fusion can provide more feature points for handwriting identification, such as the tilt angle of the strokes and the three-dimensional distribution of ink, thereby enhancing the persuasiveness of the identification conclusion.

[0022] As a further improvement, the lifting mechanism 21 includes a base plate 211 mounted on the frame 11, and a lifting cylinder 212 mounted above the base plate 211. The lifting cylinder 212 is connected to a scissor hinge assembly 213, which is connected to the detection platform 22. The scissor hinge assembly 213 is a very stable mechanical structure that can provide uniform and reliable vertical lifting, ensuring the stability of the detection platform 22 and the sample above, and avoiding shaking during scanning, which would affect data acquisition. The scissor hinge assembly 213 has a low height when retracted, which is beneficial to the overall miniaturization and compact design of the equipment.

[0023] Reference Figures 4-5 As shown, the scissor hinge assembly 213 includes a sliding rod 2131 slidably connected to the base plate 211. A lifting cylinder 212 is connected to the middle of the sliding rod 2131. First lifting rods 2132 are connected to both sides of the sliding rod 2131. The other end of the first lifting rods 2132 is connected to the detection platform 22. A fixing rod 2133 is provided at one end of the base plate 211 away from the lifting cylinder 212. A second lifting rod 2134 is connected to both ends of the fixing rod 2133. The other end of the second lifting rod 2134 is connected to the detection platform 22.

[0024] Reference Figure 3As shown, a front cover 12 is provided at the front of the housing 10. A dustproof window assembly 50 is provided on the front cover 12. The dustproof window assembly 50 includes a dustproof window 51 that is slidably disposed on the front cover 12. A spring 52 is connected to the side walls at both ends of the dustproof window 51. The other end of the spring 52 is disposed on the top of the front cover 12. A magnetic block 53 is provided at the bottom of the dustproof window 51. A magnetic component 54 corresponding to the magnetic block 53 is provided on the front cover 12. The magnetic block 53 and the magnetic component 54 are magnetically fixed together. When not in use, the closed dustproof window 51 can prevent dust from entering the inside of the equipment and contaminating precision components such as laser scanning modules, ensuring the measurement accuracy and lifespan of the equipment during long-term use. The spring design makes it easier to push the window open, improving the user experience.

[0025] Reference Figure 3 As shown, a slider 511 is provided on both sides of the dustproof window 51, and a corresponding slider 511 is provided on the front cover 12. The slider 511 is slidably disposed in the slide rail 121, which ensures that the dustproof window 51 moves smoothly and steadily in the vertical direction without jamming or deflection, thereby improving the reliability of operation and the quality of the product.

[0026] As a further improvement, an illumination module (not shown in the figure) is provided inside the housing 10, and a micro switch 60 is provided on the front cover 12. The micro switch 60 is electrically connected to the illumination module. When the dustproof window 51 touches the micro switch 60, the illumination module is turned off. When the dustproof window 51 is closed, it means that the device is about to start scanning handwriting and automatically turns off the internal lighting. By controlling the opening and closing of the dustproof window 51, the opening and closing of the illumination module is synchronously controlled, which can prevent the influence of external light sources on handwriting scanning and identification, and prevent errors in identification results caused by the user not turning off the light source. This can improve the user experience. The purpose of setting springs 52 on both sides of the dustproof window 51 is to provide a damping effect during use, which can prevent the micro switch 60 from being damaged during the opening and closing of the dustproof window 52.

[0027] Reference Figure 2 As shown, the detection platform 22 is equipped with a scanning positioning frame 221 corresponding to the handwriting sample, which provides clear visual guidance for the user and ensures that the handwriting sample can be placed in the best position in the scanning area each time, avoiding incomplete scanning or invalid data due to improper sample placement.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mounting housing structure for a handwriting 3D contour measuring device, characterized in that, include: The housing (10) has a front cover (12) at the front, and The detection platform (22) is used to place handwriting samples; The handwriting scanning device (30) installed in the housing (10) includes a laser scanning module (31) installed above the frame (11). The laser scanning module (31) is used to scan and identify handwriting samples placed on the detection platform (22). A dustproof window assembly (50) is provided on the front cover (12). The dustproof window assembly (50) includes a dustproof window (51) that is slidably provided on the front cover (12). A spring (52) is connected to the side walls of both ends of the dustproof window (51). The other end of the spring (52) is provided on the top of the front cover (12). A magnetic block (53) is provided at the bottom of the dustproof window (51). A magnetic component (54) corresponding to the magnetic block (53) is provided on the front cover (12). The magnetic block (53) and the magnetic component (54) are magnetically fixed together. A lighting module is provided inside the housing (10). A micro switch (60) is provided on the front cover (12). The micro switch (60) is electrically connected to the lighting module. When the dustproof window (51) touches the micro switch (60), the lighting module is turned off.

2. The mounting housing structure for a handwriting 3D contour measuring device according to claim 1, characterized in that, A slider (511) is provided on both sides of the dustproof window (51), and a slider (511) corresponding to the slider (511) is provided on the front cover (12). The slider (511) is slidably disposed in the slide rail (121).

3. The mounting housing structure for a handwriting 3D contour measuring device according to claim 1, characterized in that, A frame (11) is provided inside the housing (10), a lifting mechanism (21) is provided on the frame (11), and a detection platform (22) is provided on the lifting mechanism (21).

4. The mounting housing structure for a handwriting 3D contour measuring device according to claim 3, characterized in that, A distance sensing device (40) is provided on the handwriting scanning device (30). The distance sensing device (40) includes a distance sensor (41) and an adjustment unit. The distance sensor (41) is provided on the handwriting scanning device (30) and is used to detect the distance between the laser scanning module (31) and the handwriting sample on the detection platform (22).

5. The mounting housing structure for a handwriting 3D contour measuring device according to claim 4, characterized in that, The handwriting scanning device (30) also includes an auxiliary scanning module (32) disposed on the side wall of the frame (11).

6. The mounting housing structure for a handwriting 3D contour measuring device according to claim 4, characterized in that, The housing (10) has heat dissipation vents on both sides.

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