Multi-interface quick-change functional calibration board portable wearing table

Abstract

The utility model discloses a kind of multi-interface quick-change type function calibration board portable try-on platform, it is characterized in that, including: try-on platform main body, quick-change slot, the quick-change slot is set in the try-on platform main body, contain double slide rail and lead-in chamfer structure, cooperation sheet lock realizes single-handed plug-in play;Calibration board is connected with the quick-change slot by unified interface, the calibration board adopts three-layer superstructure design;Unified interface, located at the back of the calibration board, adopts ball-cone-flat three-point positioning structure, the utility model is designed by the quick-change structure of double slide rail+lead-in chamfer+sheet lock, cooperate the unified interface of ball-cone-flat three-point positioning, realize single-handed 2 seconds inside calibration board plug-in play operation, simultaneously ensure that alignment residual is ≤0.3mm.The design solves the core pain point that traditional try-on platform switches slowly, alignment repeatability is poor.

Description

Technical Field

[0001] This utility model relates to the field of art display, specifically to a portable try-on platform with a multi-interface quick-change functional calibration board. Background Technology

[0002] In scenarios such as industrial calibration, visual inspection, and AR / VR device calibration, the collaborative efficiency of the fitting platform and calibration board directly affects the accuracy of the operation and the timeliness of the overall process. However, traditional fitting platforms suffer from the following core pain points, which severely restrict the expansion of technology applications: First, low switching efficiency and poor alignment repeatability are long-standing technical bottlenecks. Traditional fitting platforms often employ a separate design for the calibration plate and fitting table. Replacing the calibration plate requires fixing with bolts or manually locking with clips, an operation that typically takes more than 30 seconds. Furthermore, relying on manual alignment makes it prone to errors that can lead to repeatability deviations exceeding 1mm, failing to meet high-precision calibration requirements. For example, in scenarios where different specifications of calibration plates are frequently switched on the production line, the time spent on a single replacement, combined with alignment errors, directly results in a decrease in the average daily operating efficiency of a single machine by more than 40%. Moreover, after long-term use, mechanical wear further widens the alignment residual to over 2mm, severely affecting measurement consistency.

[0003] Secondly, inconsistent interface standards and weak scalability limit device compatibility. Different manufacturers' or models of fitting stations often use customized interfaces, making calibration boards unusable across platforms. Users need to configure separate calibration boards for each interface, significantly increasing equipment management costs and inventory pressure. Simultaneously, traditional interfaces often employ planar contact or single-point positioning designs, resulting in weak shock resistance. In mobile scenarios or frequent insertion / removal scenarios, vibration can easily lead to poor contact, further exacerbating alignment errors.

[0004] Furthermore, the trade-off between portability and stability is difficult to reconcile. Traditional fitting stands often use heavy metal bases to achieve stability, resulting in an overall weight exceeding 3kg, making them inconvenient to carry. On the other hand, lightweight designs often sacrifice structural strength, leading to a tendency to tip over or wobble during use, especially in outdoor or mobile scenarios, where insufficient wind and vibration resistance directly affects calibration accuracy. At the same time, the calibration plate itself also has durability limitations—traditional single-layer calibration plates, due to material limitations, are prone to wear and blurring of AR markers after 500 wipes, with backlight uniformity differences exceeding 30%, leading to decreased reliability of calibration results.

[0005] This invention addresses the aforementioned problems by employing a quick-change structure with dual slide rails and spring locks to enable one-handed insertion and removal within 2 seconds. Combined with a unified interface for ball-cone-flat three-point positioning, it ensures that the alignment residual after thousands of insertions and removals is ≤0.3mm. Furthermore, a three-layer stacked calibration plate and modular optional components (replaceable battery compartment, folding feet / pads, universal perforation array) allow for flexible switching between portable form and usage mode. Ultimately, it achieves a synergistic technical effect of "quick replacement—high-precision alignment—portability and stability—expandability," breaking through the technical limitations of traditional calibration stations and meeting the comprehensive needs of industrial-grade calibration operations for efficiency, accuracy, and scenario adaptability. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems by providing a portable trial fitting platform for a multi-interface quick-change functional calibration board. Through a quick-change structure design featuring dual slide rails, a chamfered guide, and a spring-loaded lock, coupled with a unified interface for ball-cone-flat three-point positioning, the platform allows for single-handed insertion and removal of the calibration board within 2 seconds, while ensuring an alignment residual error of ≤0.3mm after 1000 insertions and removals. This design solves the core pain points of traditional trial fitting platforms, namely slow switching and poor alignment repeatability.

[0007] The technical solution of this utility model is as follows: This utility model discloses a portable trial-wearing platform for a multi-interface quick-change functional calibration board, comprising: a trial-wearing platform body; a quick-change slot disposed on the trial-wearing platform body, including a double slide rail and an inlet chamfer structure, which, together with a spring lock, enables one-handed insertion and removal; a calibration board connected to the quick-change slot through a unified interface, the calibration board adopting a three-layer stacked design; and a unified interface located on the back of the calibration board, adopting a ball-cone-flat three-point positioning structure.

[0008] The main body of the fitting platform serves as the basic load-bearing structure, integrating all functional modules and providing overall mechanical support and an operating interface. The quick-change slot uses double slide rails for guidance and chamfering to reduce insertion resistance, while the spring lock provides locking force, enabling calibration plate insertion and removal to be completed with one hand within 2 seconds, solving the problem of slow switching in traditional separate platforms. The layered design of the calibration plate meets the requirements of optical performance and structural durability, and the three layers working together ensure calibration accuracy and long-term stability. The ball-cone-flat three-point positioning achieves high-precision alignment through three-point contact, solving the problem of repeated alignment errors caused by inconsistent interface standards and adapting to the switching of multiple calibration plates.

[0009] Furthermore, the cross-sectional dimensions of the dual slide rails are 6–10mm × 3–5mm, controlling the rigidity and sliding friction of the slide rails to ensure smooth and wobbly sliding of the calibration plate, avoiding insufficient structural strength due to excessive size or increased operational resistance due to excessive size; the chamfer angle of the guide is 20–30°, optimizing the insertion guide angle, reducing mechanical interference during insertion, lowering the difficulty of operation, and improving ease of use for one-handed insertion and removal; the spring lock stroke is 0.8–1.5mm, with a locking force ≥15N, controlling the spring compression amount through the stroke range to ensure sufficient locking force to fix the calibration plate without damaging the interface, while avoiding insufficient locking force leading to detachment or excessive locking force leading to difficult operation.

[0010] Furthermore, the diameter of the ball in the unified interface is Ø3–Ø5mm; the cone angle of the unified interface is 70–90°, the ball provides point contact positioning, the cone ensures angle adaptability, and the flat point assists in stability.

[0011] Furthermore, the calibration plate has three layers stacked as follows: a backlight diffuser layer, 0.3–0.6 mm thick, which uniformly diffuses the backlight source to ensure uniform brightness on the calibration plate surface and avoid local overexposure or shadows affecting calibration accuracy; a printing layer, 0.2–0.4 mm thick, which carries the calibration pattern (such as AR markings), and the thickness control ensures the clarity of the pattern and wear resistance, adapting to the need for repeated wiping; and a support layer, 0.8–1.5 mm thick, which provides structural support, resists external deformation, ensures the overall flatness of the three-layer stack, and avoids calibration errors caused by bending.

[0012] Furthermore, the bottom of the fitting platform is equipped with a replaceable battery compartment and a foldable support / foot pad assembly.

[0013] Furthermore, the folding feet / foot pads form a stable support structure when unfolded; the replaceable battery compartment supports power supply for the backlight module, supports portable power supply, solves the limitation of external power supply, and enhances the adaptability to mobile use scenarios. The folding feet / foot pads form a stable support structure (such as a triangular support) when unfolded, improving the stability of the fitting table.

[0014] Furthermore, the bottom of the fitting platform is provided with a universal hole array for fixing and carrying adaptation. It reduces the volume when folded and achieves portability with the universal hole array at the bottom. The bottom hole array design is adapted to various fixing methods (such as screws, straps) and is compatible with different installation scenarios (such as laboratories and outdoors). At the same time, it serves as a carrying hook point, improving the versatility and portability of the device.

[0015] Furthermore, the quick-change slot and the spring lock adopt a cross-sectional structure. The spring lock is located inside the double slide rail to avoid exposure that could lead to accidental contact or damage. At the same time, it shortens the action path of the spring, improves the locking response speed and reliability, and ensures smooth one-handed operation.

[0016] Furthermore, in the three-layer stacked structure of the calibration board, the backlight diffuser layer and the substrate layer are fixed by an optical-grade adhesive layer to avoid interlayer air refraction affecting the uniformity of light, ensure no attenuation of optical performance, and at the same time, the adhesive strength meets the requirement of not delaminating during long-term use.

[0017] Furthermore, in the ball-cone-flat three-point positioning structure, the ball, cone, and flat points are distributed in an equilateral triangle, which evenly distributes the positioning stress, avoids excessive force on a single point leading to deformation, improves positioning stability and repeatability accuracy, and is suitable for high-frequency insertion and removal scenarios.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. This utility model utilizes a quick-change structure design with double slide rails, chamfered guide, and spring lock, combined with a unified interface for ball-cone-flat three-point positioning, enabling the calibration plate insertion and removal operation to be completed with one hand within 2 seconds, while ensuring that the alignment residual error is ≤0.3mm after 1000 insertions and removals. This design solves the core pain points of traditional trial fitting platforms, such as slow switching and poor alignment repeatability.

[0019] 2. This utility model achieves flexible switching between "carrying mode" and "usage mode" through modular optional components such as a replaceable battery compartment, folding feet / pads, and a universal bottom hole array, as well as a three-layer stacked calibration plate design. Attached Figure Description

[0020] Figure 1 This is an overall appearance drawing of the present utility model; Figure 2 This is a cross-section of the quick-change slot and spring lock of this utility model; Figure 3 This utility model provides a three-point positioning interface for a ball, cone, and flat surface. Figure 4 This utility model features a three-layer stacked structure and an AR marker. Figure 5 This is a schematic diagram of the usage state of this utility model; Figure 6 This is a schematic diagram of the carrying configuration of this utility model.

[0021] Reference numerals: 1-Quick change slot; 2-Spring lock; 3-Double slide rail; 4-Calibration plate; 5-Backlight diffused layer; 6-Printing layer; 7-Bearing layer; 8-AR mark position; 9-Unified interface; 10-Folding support; 11-Backlight module; 12-Replaceable battery compartment; 13-Universal perforation array; 14-Slide rail cross-section; 15-Introduction chamfer; 16-Spring mechanism; 17-Locking part; 18-Ball positioning; 19-Positioning; 20-Plane positioning; 21-Positioning accuracy; 25-AR mark position; 26-Unfolded support; 27-Backlight indicator; 28-Folded state; 29-Handle. Detailed Implementation

[0022] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0024] like Figures 1-6 As shown, this embodiment takes the "multi-interface quick-change functional calibration board portable trial stage" as its core, and achieves its technical objectives through modular structural design and precise parameter control, as detailed below: In this embodiment, the main body of the fitting platform adopts a lightweight aluminum alloy frame with an anodized surface treatment, and the total weight is ≤1.5kg. The bottom of the main body integrates a replaceable battery compartment 12, which is connected to the folding support leg assembly 10. The support leg is connected by a hinge. When unfolded, it forms an unfolded support leg 26 with a 120° triangular support structure, increasing the bottom contact area by 80% and improving anti-tipping stability. When folded 28, it is embedded in the bottom groove and is matched with a universal hole array 13 with a standard M3 hole spacing of 20mm to accommodate straps / hooks. The volume is reduced by 40% in the carrying form, and the top handle 29 makes it easy to carry.

[0025] The quick-change slot 1 and spring lock 2 structure: The quick-change slot 1 is located on the front of the fitting table, including double slide rails 3, with a cross-sectional dimension of 8×4mm and a tolerance of ±0.2mm, and an inlet chamfer 15, 25°±2°. The spring lock 2 consists of a spring mechanism 16, made of 316 stainless steel with a thickness of 1.0mm, and a locking part 17, with a spring preload of ≥18N and a spring travel of 1.2mm±0.1mm. During operation, the calibration plate 4 slides in along the double slide rails 3, and the inlet chamfer 15 reduces insertion resistance; the spring mechanism 16 is compressed after contacting the side slot of the calibration plate, and after reaching the position, the locking part 17 pops up and locks, enabling quick insertion and removal with one hand.

[0026] Unified Interface 9 High-Precision Positioning Mechanism: The calibration board 4 integrates a unified interface 9 on the back, including ball positioning 18 (Ø4mm±0.1mm, HRC55), positioning 19 (80°±2° cone angle, chrome plating), and planar positioning 20 (Ra0.8). The three points are distributed in an equilateral triangle with a side length of 50mm. After 1000 insertions and removals, the positioning accuracy 21 ≤ 0.3mm. Positioning Principle: The ball positioning 18 and the base cone hole form a cone surface constraint, limiting X / Y displacement; the planar positioning 20 suppresses Z-direction movement; the three points are equilaterally distributed to evenly disperse stress and avoid single-point overload deformation.

[0027] Calibration plate 4 is a three-layer composite with optical performance: It consists of a backlight diffuser layer 5 (high-transmittance PC, 0.5mm ± 0.05mm thick), a printing layer 6 (PET substrate, 0.3mm ± 0.03mm thick), and a support layer 7 (glass fiber nylon, 1.0mm ± 0.1mm thick). The backlight diffuser layer 5 is frosted and, together with the bottom backlight module 11, has a brightness of 5000 lux. It is connected to the printing layer 6 via an optical-grade adhesive layer (not marked), with a transmittance ≥ 95%, ensuring a backlight uniformity ΔL ≤ 18% (measured at 15%). The printing layer 6 is coated with a 2H wear-resistant coating, with AR marking position 8 / 25 having a dimensional accuracy of ± 0.1mm, and shows no wear after 5000 wipes. The support layer 7 has a bending strength ≥ 120MPa and an overall flatness ≤ 0.1mm / 100mm to avoid calibration errors.

[0028] Extended Functional Collaboration Logic: When unfolded, the folding legs 10 can be fixed to different base surfaces using the universal hole array 13; the replaceable battery compartment 12 provides power to the backlight module 11 via a magnetic interface, offering up to 8 hours of battery life and supporting mobile scenarios; the carrying handle 29 and the folded state 28 enable convenient portability. The three-layer stacked calibration board 4 connects to the quick-change slot 1 via a unified interface 9, achieving "plug and play" functionality; the spring lock 2 and dual slide rails 3 feature optimized parameters to ensure rapid replacement, while ball-cone-flat positioning ensures long-term high-precision alignment, ultimately achieving the core technical effects of "2-second quick replacement, residual error ≤0.3mm after thousands of alignments, and portability and stability," meeting the requirements of industrial-grade calibration operations.

[0029] This implementation method achieves a comprehensive technical effect of rapid replacement, high-precision alignment, portability, stability, and strong expandability through precise control of structural parameters, material selection, and modular design, meeting the dual requirements of efficiency and accuracy for industrial-grade calibration operations.

[0030] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A portable trial fitting platform for a multi-interface quick-change functional calibration board, characterized in that, include: The fitting table body and the quick-change slot are provided in the fitting table body. The quick-change slot includes a double slide rail and an inlet chamfer structure, and is used with a spring lock to realize one-handed insertion and removal. The calibration plate is connected to the quick-change slot through a unified interface. The calibration plate adopts a three-layer stacked design. It also includes a unified interface, which is located on the back of the calibration plate and adopts a ball-cone-flat three-point positioning structure.

2. The fitting platform according to claim 1, characterized in that: The cross-sectional dimensions of the dual slide rails are 6–10 mm × 3–5 mm; the chamfer angle of the guide is 20–30°; the travel of the spring lock is 0.8–1.5 mm, and the locking force is ≥15 N.

3. The fitting platform according to claim 1, characterized in that: The ball diameter of the unified interface is Ø3–Ø5mm; the cone angle of the unified interface is 70–90°.

4. The fitting platform according to claim 1, characterized in that: The calibration board has a three-layer structure as follows: a backlight diffusion layer with a thickness of 0.3–0.6 mm; a printing layer with a thickness of 0.2–0.4 mm; and a bearing layer with a thickness of 0.8–1.5 mm.

5. The fitting platform according to claim 1, characterized in that: The bottom of the fitting stand is equipped with a replaceable battery compartment and foldable legs / foot pads.

6. The fitting platform according to claim 5, characterized in that: The folding feet / foot pads form a stable support structure when unfolded; the replaceable battery compartment supports power supply to the backlight module.

7. The fitting platform according to claim 1, characterized in that: The bottom of the fitting platform is provided with a universal hole array for fixing and carrying adaptation.

8. The fitting platform according to claim 1, characterized in that: The quick-change slot and the spring lock adopt a cross-sectional structure, with the spring lock located inside the double slide rail.

9. The fitting platform according to claim 1, characterized in that: In the three-layer stacked structure of the calibration plate, the backlight diffuser layer and the printing substrate are fixed by an optical-grade adhesive layer.

10. The fitting platform according to claim 1, characterized in that: In the sphere-cone-flat three-point positioning structure, the sphere, cone, and flat points are distributed in an equilateral triangle.

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