Portable jewelry evaluation standard environment device

Abstract

The utility model relates to a portable jewelry evaluation standard environment device which comprises a foldable rating lamp, and the foldable rating lamp is provided with a lamp holder, a lamp body and a base. Wherein the lamp holder is provided with an LED light source, and the LED light source is configured to provide a standard illumination light source required by jewelry grading; the lamp holder, the lamp body and the base are all of a flat-plate-shaped structure, and every two adjacent lamp holder, the lamp body and the base are rotationally connected so that folding and unfolding of the foldable rating lamp can be achieved. The folded foldable rating lamp is of a cuboid structure; the unfolded foldable rating lamp is of a cuboid structure with three open faces. The device is simple in structure, can be folded and unfolded, is convenient to carry, is suitable for various rating scenes, and improves the rating work efficiency and accuracy.

Description

Technical Field

[0001] The present application belongs to the technical field of jewelry evaluation and grading, and specifically relates to a portable jewelry evaluation standard environment device. Background Art

[0002] At present, the national standard has clear requirements for the jewelry grading environment. In order to define the quality of artificial light sources used to evaluate the color appearance, the International Commission on Illumination (CIE) has specified a series of standard illuminants and standard light sources. Standard lighting sources refer to physical radiators that are designated as standard for lighting. Colorimetric standard light sources are specified artificial light sources, and their radiant power is similar to colorimetric standard illuminants. The light sources used in actual life can only be close to standard lighting sources, but not exactly the same.

[0003] Different color quality light sources have different characterizations of the color attributes of objects under illumination, and the indicators for evaluating the color quality of light sources are also being continuously optimized. At present, the color quality of light sources includes fidelity, preference, naturalness, saturation, constancy, color discrimination, etc., which are closely related to their spectral structure. Both the spectral structure and the color of the color block have a significant impact on the subjective evaluation of the brightness, color vividness, and color preference of the object, which is of great significance to the study of the subjective evaluation of the lighting quality of the light source. The calculation of these color quality evaluation indicators takes into account the visual phenomena such as color adaptation, color contrast, and color assimilation caused by different lighting sources, lighting levels, and observation background conditions. It can better evaluate the color quality of the light source and characterize the color attribute perception of the human eye under the illumination of the light source. In particular, the color gamut area of ​​the light source can characterize the brightness and vividness of the object under the illumination of the light source to a certain extent. By maintaining the color temperature and optimizing the light source spectrum to increase its color gamut area, the brightness and vividness of the color of the object under the illumination of the light source can be increased to a certain extent, thereby enhancing the color saturation and color preference. It has important application value for the white light LED lighting environment with high color quality requirements on the market.

[0004] Taking the national standard "Sapphire Grading" GB / T 32862-2016 as an example, the sapphire grading environment requirements are that sapphire grading should be carried out indoors without direct sunlight, and the color tone of the grading environment should be white or neutral gray. The grading should be illuminated by the specified grading light source, and a neutral white (light gray) paper (board) with no fluorescence and no obvious directional reflection effect should be used as the observation background. Taking diamonds as an example, the evaluation environment illumination is 1200lx~2000lx, the color temperature is 5500K~7200K, the color rendering index is above 75, the environment color is neutral, and the reflectance is preferably 0.43.

[0005] However, existing jewelry evaluation and grading technologies have the following shortcomings and deficiencies:

[0006] (1) There are some portable and movable grading-specific light sources on the market. However, these grading-specific light source products do not fully consider the impact of the external light source environment on the grading test, which will cause the external light source environment to interfere with the accuracy of the representation of the jewelry grading standard samples, and ultimately affect the accuracy of the jewelry grading results. Moreover, this type of grading-specific light source is similar to the overall structure of a desk lamp, cannot be folded, is large in size, and is not easy to carry.

[0007] (2) There is no independent standard environment guarantee equipment for portable jewelry grading on the market. Currently, only some large laboratories have standard grading test environments. Standard grading test environments are fixed and occupy a large space, but other medium and small laboratories do not meet the construction requirements of such grading standard environments. In addition, due to site conditions, it is often impossible to provide sufficient experimental space when grading gemstones. For example, production sites, shopping malls, examinations, teaching and other scenarios also require jewelry standard grading test environments. The existing standard grading test environments that are only available in large laboratories cannot meet the needs of various mobile grading scenarios.

[0008] Based on the above analysis, there is an urgent need to provide a portable jewelry evaluation standard environment device that takes into account the impact of the external light source environment on the grading test. The jewelry grading has high accuracy, meets the needs of mobile scenes, provides environmental protection for jewelry grading, and facilitates the grading work. Utility Model Content

[0009] In view of the above analysis, the embodiments of the utility model aim to provide a portable jewelry evaluation standard environment device to solve the problem in the existing jewelry grading technology that the external environment interferes with the accuracy of the characterization of the jewelry grading standard sample, thereby affecting the grading results, and to solve the problem that the existing grading environment equipment is not portable, making it difficult to implement the gem grading technology.

[0010] The purpose of the utility model is achieved in this way:

[0011] A portable jewelry evaluation standard environment device comprises a foldable rating lamp, wherein the foldable rating lamp has a lamp head, a lamp body and a base;

[0012] The lamp head is provided with an LED light source, which is configured to provide the standard lighting source required for jewelry grading;

[0013] The lamp head, the lamp body and the base are all flat plate structures, and two adjacent ones of the lamp head, the lamp body and the base are rotatably connected to realize the folding and unfolding of the foldable rating lamp;

[0014] The foldable rating light has a rectangular structure after being folded;

[0015] When unfolded, the foldable rating light is a rectangular structure with three open sides.

[0016] Furthermore, it also includes a light box back panel and a light box side panel, which are installed on the unfolded foldable rating light to form a light box structure with a side opening.

[0017] Furthermore, the light box back panel, the light box side panels and the unfolded foldable rating light are detachably connected.

[0018] Furthermore, the light box back panel, the light box side panels and the unfolded foldable rating light are magnetically connected.

[0019] Further, the LED light source includes at least one of a D50 standard light source, a D65 standard light source and an ultraviolet fluorescent lamp.

[0020] Furthermore, the lamp body includes plate one and plate two; the lamp head is rotatably connected to plate one through a first switching mechanism; plate one is connected to plate two through a second switching mechanism; plate two is rotatably connected to the base through a third switching mechanism.

[0021] Furthermore, the first adapter mechanism includes a first adapter bracket, a first folding shaft and a rotating shaft, the first adapter bracket is rotatably connected to the first end of plate one through the first folding shaft; the lamp head is rotatably connected to the first adapter bracket through the rotating shaft, and the axis of the first folding shaft is perpendicular to the axis of the rotating shaft.

[0022] Furthermore, after the foldable rating lamp is folded, the first plate is in surface contact with the second plate, the first plate is in surface contact with the lamp holder, and the second plate is in surface contact with the base.

[0023] Furthermore, the first adapter bracket is provided with an installation space, a fixing block is provided in the installation space, and the rotating shaft is rotatably arranged on the fixing block.

[0024] Furthermore, it also includes a light-absorbing coating, which is made of a light-absorbing material; the light-absorbing coating is attached to the back panel of the light box, the side panels of the light box, the lamp head, the lamp body and the base.

[0025] Compared with the prior art, the portable jewelry evaluation standard environment device provided by the utility model can be folded and unfolded. After folding, the device has a small volume, which is convenient for storage and carrying. After unfolding, it forms a light box structure with a side opening together with the light box back panel and the light box side panels. When the operator grades gemstones in the environment created by the light box structure, a grading working environment free from external interference can be provided for the operator. When the operator compares the color grading of gemstones with standard samples, the operator can make more accurate judgments, reduce errors and misjudgments caused by improper operation due to external light, environment, etc., and improve grading work efficiency and accuracy. Moreover, the unfolded light box structure occupies little space and can be applied to grading operating environments in different situations. It provides jewelry teaching and laboratories with grading equipment that can switch between different light sources, improves the functionality of the grading equipment, and provides various jewelry and jade practitioners with simple and portable grading environment guarantee equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of a foldable rating light of the portable jewelry evaluation standard environment device provided by the utility model in a folded state at a first angle;

[0028] Figure 2 A second angle schematic diagram of the foldable rating light of the portable jewelry evaluation standard environment device provided by the utility model;

[0029] Figure 3 A schematic diagram of the first angle of the unfolded state of the foldable rating light of the portable jewelry evaluation standard environment device provided by the utility model;

[0030] Figure 4 A second angle schematic diagram of the unfolded state of the foldable rating light of the portable jewelry evaluation standard environment device provided by the utility model;

[0031] Figure 5 A third angle schematic diagram of the unfolded state of the foldable rating light of the portable jewelry evaluation standard environment device provided by the utility model;

[0032] Figure 6 A schematic diagram of the disassembly of a foldable rating light of the portable jewelry evaluation standard environment device provided by the utility model;

[0033] Figure 7 A schematic diagram of the structure of the portable jewelry evaluation standard environment device provided by the utility model from a first angle;

[0034] Figure 8 A second angle structural diagram of the portable jewelry evaluation standard environment device provided by the utility model;

[0035] Fig. 9 A schematic diagram of the structure of the light box side panels and the light box back panel of the portable jewelry evaluation standard environment device provided by the utility model;

[0036] Fig.10 A schematic diagram of the structure of the connection between the lamp head and the lamp body of the portable jewelry evaluation standard environment device provided by the utility model;

[0037] Fig.11A schematic diagram of the partially disassembled structure of the foldable rating light of the portable jewelry evaluation standard environment device provided by the utility model Figure 1 ;

[0038] Fig.12 A structural schematic diagram of a first adapter bracket of a foldable rating light of a portable jewelry evaluation standard environment device provided by the utility model;

[0039] Fig.13 A schematic diagram of the partially disassembled structure of the foldable rating light of the portable jewelry evaluation standard environment device provided by the utility model Figure 2 ;

[0040] Fig.14 For application Fig.13 A schematic diagram of the structure of the rotating axis of the foldable rating light.

[0041] Reference numerals:

[0042] 1-lamp holder; 11-LED light source;

[0043] 2-lamp body; 21-board one; 211-adapter ear; 211a-mounting hole; 211b-fixing slot; 22-board two;

[0044] 3-base; 31-side cover;

[0045] 4-light box back panel;

[0046] 5-Light box side panel;

[0047] 6-first transfer mechanism; 61-first transfer bracket; 611-sleeve; 611a-central through hole; 611b-tooth groove; 611c-arc hole; 62-first folding shaft; 621-convex strip; 622-limiting part; 623-screw section; 63-rotating shaft; 64-fixing block; 65-nut;

[0048] 7-second transfer mechanism; 71-second transfer bracket; 72-second folding shaft;

[0049] 8 - third transfer mechanism; 81 - third transfer bracket; 82 - third folding shaft. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0051] In the drawings, the size and relative sizes of components may be exaggerated for clarity and / or descriptive purposes. Moreover, the same reference numerals denote the same components.

[0052] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0053] Example 1

[0054] A specific embodiment of the utility model is as follows Figures 1 to 6 As shown, a portable jewelry evaluation standard environment device is disclosed, including a foldable rating lamp, wherein the foldable rating lamp has a lamp head 1, a lamp body 2 and a base 3; wherein the lamp head 1 is provided with an LED light source 11, and is configured to provide a standard lighting source required for jewelry grading; the lamp head 1, the lamp body 2 and the base 3 are all flat plate structures, and adjacent two of the lamp head 1, the lamp body 2 and the base 3 are rotatably connected to realize the folding and unfolding of the foldable rating lamp;

[0055] The foldable rating lamp has a rectangular parallelepiped structure after being folded. The rectangular parallelepiped structure here refers to a regular rectangular parallelepiped structure or a nearly rectangular parallelepiped structure;

[0056] The unfolded foldable rating lamp is a rectangular parallelepiped structure with three open sides, and can stand on a horizontal operating table through the base 3 , with the lamp head 1 located above the base 3 .

[0057] In this embodiment, the portable jewelry evaluation standard environment device also includes a light box back panel 4 and a light box side panel 5. Figures 7 to 9 As shown, the light box back plate 4 and the light box side plate 5 are installed on the unfolded foldable rating lamp to form a light box structure with an open side. The unfolded foldable rating lamp can be used as a box frame of the light box structure. By combining and installing the light box back plate 4 and the light box side plate 5 on the box frame, the light box is assembled; after unfolding, the light box side plate 5 is parallel to the lamp body 2, and the light box back plate 4 is perpendicular to the lamp body 2 and the light box side plate 5. The light box back plate 4 and the light box side plate 5 can be two completely independent plates, or two plates connected by rotation.

[0058] When it is necessary to grade and evaluate the jewelry, the lamp body 2, lamp head 1 and lamp holder of the foldable rating lamp are unfolded to form a box frame, and the box frame is placed on a flat operating table. At this time, the box frame is open on three sides; the light box back plate 4 and the light box side plate 5 are installed at the two openings of the box frame to complete the assembly of the light box structure, and the internal space of the light box structure is used as the jewelry grading working environment; the LED light source 11 is turned on, and the light source type is selected according to the needs. The operator performs jewelry grading operations in the internal space of the light box structure through the side opening, providing the operator with a grading working environment that is not interfered by external borrowing. When the operator compares the color grading of the gemstone with the standard sample, it can make a more accurate judgment, reduce the errors and misjudgments caused by improper operation such as external light and environment, and improve the efficiency and accuracy of the grading work. After completing the grading evaluation, turn off the LED light source 11, first remove the light box back plate 4 and the light box side plate 5, and then fold and put away the foldable rating lamp. The folded device is small, easy to store and move, and has good portability.

[0059] In one optional embodiment, the light box back plate 4 and the light box side plate 5 are detachably connected to the unfolded foldable rating light. When the foldable rating light is unfolded, the light box back plate 4 and the light box side plate 5 are installed at two openings of the unfolded foldable rating light to form a light box structure with a side opening. Exemplarily, the light box back plate 4 and the light box side plate 5 are connected to the unfolded foldable rating light by magnetic attraction or snap-on method. Among them, in the technical solution of installing on the unfolded foldable rating lamp by magnetic attraction, the light box back panel 4 and the light box side panels 5 are both provided with magnetic attraction parts, such as magnets, and the magnetic attraction parts are arranged on the four corners of the light box back panel 4 and the light box side panels 5; the lamp head 1, the lamp body 2 and the side wall surfaces of the lamp holder are provided with magnetic attraction matching parts, such as iron sheets. When the light box back panel 4 and the light box side panels 5 are installed in the open position after the foldable rating lamp is unfolded, the magnetic attraction matching parts on the side wall surfaces of the lamp head 1, the lamp body 2 and the lamp holder can correspond to the magnetic attraction parts on the four corners of the light box back panel 4 and the light box side panels 5 to achieve magnetic fixation.

[0060] In this embodiment, the LED light source 11 is arranged in the lamp holder 1, and the light source may include various types of light sources, such as D50 standard light source, D65 standard light source and ultraviolet fluorescent lamp, etc. The light source type can be selected according to needs during grading.

[0061] In this embodiment, the lamp body 2 includes two foldable parts, that is, the lamp body 2 includes a rotatable and foldable plate 1 21 and a plate 22; the lamp holder 1 is rotatably connected to the plate 1 21 of the lamp body 2 via a first adapter mechanism 6; the plate 1 21 of the lamp body 2 is connected to the plate 2 22 via a second adapter mechanism 7; the plate 2 22 of the lamp body 2 is rotatably connected to the base 3 via a third adapter mechanism 8.

[0062] In one of the optional embodiments, the first adapter mechanism 6 includes a first adapter bracket 61, a first folding shaft 62 and a rotating shaft 63. The first adapter bracket 61 is rotatably connected to the first end of the lamp body 2 plate 21 through the first folding shaft 62 to achieve folding; the lamp head 1 is rotatably connected to the first adapter bracket 61 through the rotating shaft 63, and the axis of the first folding shaft 62 is perpendicular to the axis of the rotating shaft 63; the first folding shaft 62 is used to achieve the foldable rotation of the lamp head 1 and the lamp body 2, and the rotating shaft 63 is used to achieve multi-angle rotation of the lamp head 1 to ensure that the light can be focused on the working area.

[0063] Furthermore, the first adapter bracket 61 is provided with an installation space, a fixing block 64 is provided in the installation space, and the rotating shaft 63 is rotatably provided on the fixing block 64, such as Fig.11 By arranging the fixing block 64 in the first adapter bracket 61 , the stability of the rotating shaft 63 is improved, thereby improving the connection stability between the lamp holder 1 and the lamp body 2 , and extending the service life of the lamp holder 1 .

[0064] In one of the optional embodiments, the second adapter mechanism 7 includes a second adapter bracket 71 and a second folding shaft 72, the third adapter mechanism 8 includes a third adapter bracket 81 and a third folding shaft, the third adapter bracket 81 is integrally formed at the second end of the plate 22; the second adapter bracket 71 is integrally formed at the second end of the plate 1 21, the second adapter bracket 71 is rotatably connected to the first end of the plate 22 through the second folding shaft 72, and the second end of the plate 22 is rotatably connected to the base 3 through the third folding shaft.

[0065] In this embodiment, the lamp holder 1, the lamp body 2 and the base 3 are all flat-plate structures. Except for the connection parts, the thickness, width and length parameters of each part are basically the same. In this way, the outer contour shape of the foldable rating lamp after folding is more regular, which is convenient for carrying and storage.

[0066] Furthermore, after folding, the first plate 21 and the second plate 22 are in surface contact, the first plate 21 and the lamp holder 1 are in surface contact, and the second plate 22 and the base 3 are in surface contact. When the foldable rating lamp is unfolded, the first plate 21 and the second plate 22 of the lamp body 2 are coplanar, that is, the angle between the first plate 21 and the second plate 22 is 180 degrees, the angle between the base 3 and the second plate 22 is 90 degrees, and the angle between the first plate 21 and the lamp holder 1 is 90 degrees.

[0067] In this embodiment, the base is provided with a power switch, a color temperature switching button, and a light source intensity adjustment button; wherein the light source intensity adjustment button realizes the adjustable light source intensity; the color temperature switching button realizes the switching of color temperatures including 5000k and 6500k. Optionally, a touch screen is provided on the base 3, and the power switch, color temperature switching button, and light source intensity adjustment button are all touch-controlled. Optionally, a rechargeable battery is provided on the base, and the rechargeable battery is used to power the LED light source.

[0068] In one optional embodiment, the portable jewelry evaluation standard environment device also includes a light-absorbing coating, which is made of a light-absorbing material. The light-absorbing coating can be attached to the light box back plate 4, the light box side plate 5, the lamp head 1, the lamp body 2 and the base 3. It can also be understood that when the environment device is unfolded and forms a light box structure, the inner wall surface of the light box structure, except for the light source, has a light-absorbing coating, so as to avoid the influence of light reflection on the background color and the light environment inside the light box structure, and ensure that the light environment for jewelry evaluation meets the national standards.

[0069] In this embodiment, the structures of the first folding shaft 62 , the second folding shaft 72 , and the third folding shaft 82 and the structures of the corresponding connecting parts are the same or similar.

[0070] In the first solution, the first folding shaft 62 is taken as an example for explanation. Fig.10As shown, two convex strips 621 are provided on the outer wall of the first folding shaft 62, and the two convex strips 621 are arranged along the axial direction of the first folding shaft 62, and the two convex strips 621 are arranged 180° symmetrically, and the axis of the first folding shaft 62 is located on the plane where the two convex strips 621 are located; the first adapter frame is provided with a sleeve 611, and a plurality of tooth grooves 611b are evenly provided on the inner wall of the central through hole 611a of the sleeve 611, and the length direction of the tooth grooves 611b is parallel to the center line of the sleeve 611, and the material of the tooth grooves 611b has a certain toughness and deformation ability, such as ABS or nylon material, the first folding shaft 62 and the convex strips 621 provided thereon are made of rigid material and cannot be deformed, and two adapter ears 211 are provided at the first end of the lamp body 2 plate 21, and the sleeve 611 can be installed between the two adapter ears 211, and the adapter ears 211 are provided There is a mounting hole 211a for mounting the first folding shaft 62. Two fixing grooves 211b are arranged on the wall of the mounting hole 211a. The fixing grooves 211b are arranged along the axial direction parallel to the mounting hole 211a. The positions of the two fixing grooves 211b match the positions of the two convex strips 621. When the first folding shaft 62 is installed in the mounting hole 211a and the sleeve 611 of the transfer ear 211, the two convex strips 621 can be installed in the two fixing grooves 211b to limit the rotation of the first folding shaft 62. In this way, when the plate 121 of the lamp body 2 is turned over, the sleeve 611 at the end of the plate 121 can rotate around the first folding shaft 62. The ductilely deformed tooth grooves 611b can not only allow the convex strips 621 to rotate in the sleeve 611, but also allow the plate 121 of the lamp body 2 and the lamp head 1 to rotate to the desired angle and then be fixed to maintain the desired turning angle. The folding shaft of the above structure adopts an insert type, which is easy to assemble and does not require screws.

[0071] In the second solution, the first folding shaft 62 is also used as an example for explanation. Figure 13 to Figure 14As shown, the middle body of the first folding shaft 62 is a smooth round rod structure, one end of the first folding shaft 62 is provided with a limit portion 622, and the other end is a screw section 623 with an external thread, which can be installed with a nut 65; the first adapter is provided with a sleeve 611, and the sleeve 611 has a central through hole 611a with a smooth inner wall; two adapter ears 211 are provided at the first end of the lamp body 2 plate 1 21, and the sleeve 611 can be installed between the two adapter ears 211. The adapter ear 211 is provided with a mounting hole 211a for installing the first folding shaft 62, and the distance between the two adapter ears 211 is equal to the axial length of the sleeve 611. When the sleeve 611 is installed between the two adapter ears 211, the inner end faces of the two axial ends of the sleeve 611 are aligned with the two adapter ears 211. The relative inner sides of the adapter ear 211 are in contact; the size of the limiting portion 622 is larger than the aperture of the mounting hole 211a of the adapter ear 211. When the first folding shaft 62 is installed in the mounting hole 211a of the adapter ear 211 and the sleeve 611, the limiting portion 622 can be stuck outside the mounting hole 211a of the adapter ear 211, and the nut 65 is screwed on the screw segment 623 of the first folding shaft 62. The two adapter ears 211 are clamped from both sides of the outside by using the nut 65 and the limiting portion 622. The external clamping force creates friction between the two adapter ears 211 and the sleeve 611. This friction will not completely hinder the flipping of the lamp body 2 and the lamp holder 1, which can not only ensure the flipping of the lamp holder 1, but also maintain the required flipping angle after flipping, thereby playing a damping role.

[0072] Optionally, in order to cover the nut and / or the folding shaft, shielding members may be provided on the sides of the lamp head 1, the lamp body 2, and the lamp holder 3, such as a side cover 31 provided on the side of the base 3 to enhance the aesthetics of the device.

[0073] In one optional embodiment, the second switching mechanism 7 can only flip the first plate 21 and the second plate 22 between 0 and 180 degrees. This design enables the first plate 21 and the second plate 22 of the lamp body 2 to be located in the same vertical plane after being unfolded to the maximum angle, thereby preventing the first plate 21 and the second plate 22 from flipping too far and affecting the overall stability of the light box structure. For example, Fig.12 As shown, arc-shaped holes 611c are also provided on the two axial end sides of the sleeve 611, the center of which is located on the axis of the central through hole 611a, and the central angle of which is 180 degrees; a limiting rod is provided on the axial inner end face of the transfer ear 211, and the limiting rod can be inserted into the arc-shaped hole 611b, and the limiting rod cooperates with the arc-shaped hole 611c to realize the flipping of plate 1 21 and plate 2 22 between 0 degrees and 180 degrees.

[0074] In one of the optional implementations, the internal space of the unfolded light box structure is a rectangular space, and the size parameters of the rectangular space are: length 20-40cm, width 8-20cm, height 40-60cm; the light source is a flat LED lamp, and the length of the flat LED lamp is 10-30cm, and the width is 5-15cm. In addition, a reasonable setting of the grading space size is adopted, which effectively reduces the requirements of the grading work on the environmental space while ensuring accuracy, and facilitates the grading work.

[0075] Compared with the prior art, the portable jewelry evaluation standard environment device provided in this embodiment has at least one of the following beneficial effects:

[0076] 1. It can be folded and unfolded. The folded volume is small, which is convenient for storage and carrying. After unfolding, it forms a light box structure with a side opening together with the light box back panel and the light box side panels. When the operator grades gemstones in the environment created by the light box structure, it can provide the operator with a grading working environment that is not disturbed by external interference. When the operator compares the color grading of gemstones with standard samples, it can make more accurate judgments, reduce errors and misjudgments caused by improper operation due to external light, environment, etc., and improve grading work efficiency and accuracy; and the unfolded light box structure occupies a small space and can be used in grading operating environments in different situations, providing jewelry teaching and laboratories with grading equipment that can switch different light sources, improving the functionality of the grading equipment, and providing all kinds of jewelry and jade practitioners with simple and portable grading environment guarantee equipment.

[0077] 2. The light sources used by the lamp head include various types of light sources such as D50 standard light source, D65 standard light source and ultraviolet fluorescent lamp. The type of light source can be selected according to needs during grading. By setting a light-absorbing coating on the inner wall of the light box structure, it can avoid the influence of light reflection on the background color and the internal light environment of the light box structure. It can provide jewelry teaching and laboratories with a scene-based detection and grading environment that strictly complies with national standards, and provide jewelry trade with a series of standard environments of different specifications such as display and explanation environment.

[0078] 3. A four-fold foldable rating lamp is adopted, and the lamp body is arranged in two parts, namely, foldable plate one and plate two. After the lamp head, lamp body and base are folded, plate one is in surface contact with plate two, plate one is in surface contact with the lamp head, plate two is in surface contact with the base, and after folding, an approximately rectangular structure can be formed, which significantly reduces the volume and improves portability.

[0079] 4. Use a lamp head that can rotate at multiple angles to ensure that the light can be focused on the working area to meet the needs of rating work.

[0080] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A portable jewelry evaluation standard environment device, characterized in that: It comprises a foldable rating lamp, wherein the foldable rating lamp has a lamp head (1), a lamp body (2) and a base (3); The lamp head (1) is provided with an LED light source (11) configured to provide a standard lighting source required for jewelry grading; The lamp head (1), the lamp body (2) and the base (3) are all flat plate structures, and two adjacent ones of the lamp head (1), the lamp body (2) and the base (3) are rotatably connected to achieve folding and unfolding of the foldable rating lamp; The foldable rating lamp has a rectangular structure after being folded; The foldable rating lamp after unfolding is a rectangular parallelepiped structure with three open sides; It also comprises a light box back plate (4) and a light box side plate (5), wherein the light box back plate (4) and the light box side plate (5) are installed on the unfolded foldable rating lamp to form a light box structure with an open side.

2. The portable jewelry evaluation standard environment device according to claim 1, characterized in that: The light box back plate (4) and the light box side plates (5) are detachably connected to the unfolded foldable rating light.

3. The portable jewelry evaluation standard environment device according to claim 2, characterized in that: The light box back panel (4) and the light box side panels (5) are magnetically connected to the unfolded foldable rating light.

4. The portable jewelry evaluation standard environment device according to claim 1, characterized in that: The LED light source (11) comprises at least one of a D50 standard light source, a D65 standard light source and an ultraviolet fluorescent lamp.

5. The portable jewelry evaluation standard environment device according to claim 1, characterized in that: The lamp body (2) comprises a first plate (21) and a second plate (22); the lamp head (1) is rotatably connected to the first plate (21) via a first switching mechanism (6); the first plate (21) is connected to the second plate (22) via a second switching mechanism (7); and the second plate (22) is rotatably connected to the base (3) via a third switching mechanism (8).

6. The portable jewelry evaluation standard environment device according to claim 5, characterized in that: The first adapter mechanism (6) comprises a first adapter bracket (61), a first folding rotating shaft (62) and a rotating shaft (63); the first adapter bracket (61) is rotatably connected to the first end of the plate 1 (21) via the first folding rotating shaft (62); the lamp holder (1) is rotatably connected to the first adapter bracket (61) via the rotating shaft (63); the axis of the first folding rotating shaft (62) is perpendicular to the axis of the rotating shaft (63).

7. The portable jewelry evaluation standard environment device according to claim 5 or 6, characterized in that: After the foldable rating lamp is folded, the first plate (21) and the second plate (22) are in surface contact, the first plate (21) and the lamp head (1) are in surface contact, and the second plate (22) and the base (3) are in surface contact.

8. The portable jewelry evaluation standard environment device according to claim 6, characterized in that: The first adapter bracket (61) is provided with an installation space, a fixing block (64) is provided in the installation space, and the rotating shaft (63) is rotatably arranged on the fixing block (64).

9. The portable jewelry evaluation standard environment device according to any one of claims 1 to 3, characterized in that: It also includes a light-absorbing coating, which is made of a light-absorbing material; the light-absorbing coating is attached to the light box back panel (4), the light box side panels (5), the lamp head (1), the lamp body (2) and the base (3).

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