Noble metal detector

Abstract

The utility model discloses a kind of noble metal detectors, it includes main casing, detection panel, X-ray assembly and detector component.The top of main casing has openable upper cover;Detection panel is set in main casing and is located below upper cover, and detection panel is provided with detection hole, for accommodating noble metal to be detected;X-ray assembly is obliquely connected below detection panel, including detachable collimator, X-ray assembly is oriented as the noble metal in detection hole obliquely emits X-ray;Detector component is obliquely connected below detection panel, and detector component is configured to receive the fluorescence generated after noble metal is irradiated by X-ray.The collimator of the noble metal detector is detachably arranged, which simplifies the collimator structure, shortens the optical path between the X-ray assembly, the detector component and the noble metal to be detected, improves the energy intensity of X-ray irradiation to the noble metal and the fluorescence intensity received by the detector component, and has a beneficial effect on analysis accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of testing instrument technology, specifically relating to a precious metal detector. Background Technology

[0002] Precious metal detectors are intelligent non-destructive testing instruments, characterized by their ease of operation and high measurement speed. They are widely used in jewelry appraisal, gold and silver jewelry production, manufacturing, geological exploration, and environmental protection. Precious metal detectors primarily utilize energy-dispersive X-ray fluorescence (XRF) technology. XRF technology irradiates the sample with X-rays, exciting inner-shell electron transitions in the atoms within the sample and releasing characteristic X-ray fluorescence. The energy and intensity of these fluorescent rays are closely related to the types and amounts of elements in the sample. X-ray non-destructive testing technology is increasingly prevalent in jewelry, environmental protection, industrial testing, and mineral resource exploration. The market demands higher technical specifications for precious metal detectors, and existing detectors, with their complex structures, are finding it increasingly difficult to meet the required accuracy.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a precious metal detector, in which the X-ray component and detector component are tilted, the collimator is detachable, and the detection accuracy is higher and the structure is simpler.

[0005] To achieve the above objectives, a specific embodiment of this utility model provides the following technical solution: A precious metal detector includes a main housing, a detection panel, an X-ray assembly, and a detector assembly. The top of the main housing has an openable and closable top cover; the detection panel is disposed inside the main housing and located below the top cover, and the detection panel has a detection hole for accommodating the precious metal to be detected; the X-ray assembly is obliquely connected to the bottom of the detection panel, and the X-ray assembly includes a detachable collimator, and the X-ray assembly is oriented to obliquely emit X-rays towards the precious metal in the detection hole; the detector assembly is obliquely connected to the bottom of the detection panel and disposed opposite to the X-ray assembly, and the detector assembly is configured to receive the fluorescence generated by the precious metal after being irradiated by X-rays.

[0006] In one or more embodiments of this utility model, the X-ray assembly includes a first fixing plate, a collimator mounting block, and an X-ray generator. The first fixing plate is connected to the detection panel and extends obliquely downward below the detection hole; the collimator mounting block is disposed on the first fixing plate; the collimator is mounted on the collimator mounting block; the X-ray generator is disposed on the side of the collimator mounting block away from the detection hole, and the X-ray generator is configured to emit X-rays through the collimator into the detection hole towards the precious metal to be detected.

[0007] In one or more embodiments of the present invention, the collimator is inserted into the collimator mounting block and is detachably connected to the collimator mounting block.

[0008] In one or more embodiments of the present invention, the first fixing plate has a first horizontal segment connected to the detection panel and a first extension segment extending obliquely downward from the first horizontal segment, the collimator mounting block is disposed on the first extension segment and the collimator is disposed perpendicularly to the plane of the first extension segment.

[0009] In one or more embodiments of the present invention, a heat sink is provided on the surface of the X-ray generator, and a cooling fan is fixedly provided at the bottom of the heat sink.

[0010] In one or more embodiments of this invention, the detector assembly includes a second fixing plate and a detector. The second fixing plate is connected to the detection panel and extends obliquely downward; the detector is disposed on the second fixing plate and extends into the detection hole to receive the fluorescence emitted by the noble metal after it is irradiated by X-rays.

[0011] In one or more embodiments of the present invention, the second fixing plate has a second horizontal segment connected to the detection panel and a second extension segment extending obliquely downward from the second horizontal segment, and the detector is disposed on the second extension segment.

[0012] In one or more embodiments of the present invention, a guide groove is provided on the second extension section along its length direction, and the detector can move along the guide groove and be fixed in the guide groove.

[0013] In one or more embodiments of the present invention, the precious metal detector further includes a camera assembly for determining the position of the precious metal to be detected within the detection hole.

[0014] In one or more embodiments of this utility model, the camera assembly includes a fixed bracket, a camera, and an auxiliary light source. The fixed bracket is disposed below the detection hole; the camera is mounted on the fixed bracket and located below the detection hole, and the X-ray assembly and detector assembly are respectively located on both sides of the camera; the auxiliary light source is disposed to the side of the camera and at a height lower than the camera, so as to illuminate the precious metal to be detected.

[0015] Compared with existing technologies, the collimator of this precious metal detector is detachable and can be replaced according to usage requirements. Unlike existing technologies, it eliminates the need for additional replacement structures, simplifying the collimator structure. Furthermore, the collimator and detector positions are adjustable and tilted relative to the detection panel, thereby shortening the distance between the X-ray generator, detector, and the precious metal to be detected. This increases the energy intensity of the characteristic spectrum of the precious metal irradiated by X-rays and the fluorescence intensity generated by the detector after receiving laser irradiation from the precious metal, thus improving the accuracy of detection and analysis. By changing the arrangement of the X-ray and detector components, optimizing the internal structure, and incorporating a heat sink and cooling fan, this precious metal detector improves the instrument's stability and accuracy. In addition, through optimized internal structure, this precious metal detector has fewer components, a smaller size, lower power consumption, and better detection results. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a precious metal detector according to an embodiment of the present invention;

[0018] Figure 2 This is an internal structural diagram of a precious metal detector according to one embodiment of the present invention;

[0019] Figure 3 This is a first perspective view of the X-ray assembly, detector assembly, and camera assembly in one embodiment of the present invention;

[0020] Figure 4 This is a second perspective view of the X-ray assembly, detector assembly, and camera assembly in one embodiment of the present invention:

[0021] Figure 5 This is a perspective view of the camera component in one embodiment of the present invention.

[0022] Explanation of key figure labels:

[0023] 1-Main housing, 11-Top cover, 2-Detection panel, 21-Detection hole, 3-X-ray assembly, 31-First fixing plate, 311-First horizontal section, 312-First extension section, 32-Collimator mounting block, 33-Collimator, 34-X-ray generator, 4-Detector assembly, 41-Second fixing plate, 411-Second horizontal section, 412-Second extension section, 4121-Guide groove, 42-Detector, 5-Heat sink, 51-Cooling fan, 6-Camera assembly, 61-Fixed bracket, 62-Camera, 63-Auxiliary light source, 7-Control board, 8-High voltage power supply. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0025] like Figure 1-5 As shown, a precious metal detector according to one embodiment of the present invention includes a main housing 1, a detection panel 2, an X-ray assembly 3, and a detector assembly 4. The main housing 1 has an openable and closable top cover 11. The detection panel 2 is disposed inside the main housing 1 and located below the top cover 11. The detection panel 2 has a detection hole 21 for accommodating the precious metal to be detected. The X-ray assembly 3 is obliquely connected to the lower part of the detection panel 2 and includes a detachably connected collimator 33. The X-ray assembly 3 is oriented to obliquely emit X-rays towards the precious metal in the detection hole 21. The detector assembly 4 is obliquely connected to the lower part of the detection panel 2 and disposed opposite to the X-ray assembly 3. The detector assembly 4 is configured to receive the fluorescence generated by the precious metal after being irradiated by X-rays.

[0026] The precious metal detector operates as follows: A transparent support, such as a transparent film, that does not affect X-ray transmission is placed at the detection port 21. The precious metal to be detected is placed on the transparent support. Then, the top cover 11 is closed, and the X-ray assembly 3 and detector assembly 4 are activated. The X-ray assembly 3 emits X-rays onto the precious metal placed on the transparent support. After being irradiated by X-rays, the inner-shell electrons of the atoms in the precious metal undergo transitions, releasing characteristic X-ray fluorescence. Then, the detector assembly 4 receives the characteristic X-ray fluorescence and performs analysis.

[0027] The collimator 33 of the precious metal detector in the above embodiment is detachable, so it can be replaced according to the usage. Compared with the complicated collimator structure of the existing detector, the precious metal detector simplifies the collimator 33 structure, shortens the distance between the X-ray component 3, the detector component 4 and the precious metal to be detected, and improves the energy intensity of the characteristic spectrum of the X-ray irradiation on the precious metal to be tested and the fluorescence intensity of the laser generated by the precious metal to be tested received by the detector component 4, thereby improving the accuracy of detection and analysis.

[0028] In one implementation, such as Figure 3-4 As shown, the X-ray assembly 3 also includes a first fixing plate 31, a collimator mounting block 32, and an X-ray generator 34.

[0029] The first fixing plate 31 is connected to the detection panel 2 and extends obliquely downward below the detection hole 21. Specifically, as shown... Figure 4 As shown, the first fixing plate 31 has a first horizontal segment 311 connected to the detection panel 2 and a first extension segment 312 extending obliquely downward from the first horizontal segment 311. The first extension segment 312 extends obliquely downward from one end of the first horizontal segment 311 near the detection hole 21 towards the detection hole 21. The included angle between the first horizontal segment 311 and the first extension segment 312 can be between 40° and 50°, preferably 45°.

[0030] The collimator mounting block 32 is disposed on the first fixed plate 31. Specifically, an opening is provided on the first extension section 312, and the collimator mounting block 32 is disposed on the opening of the first extension section 312. Preferably, the extension direction of the collimator 33 is perpendicular to the plane of the first extension section 312, thereby ensuring that the X-rays can irradiate the precious metal to be detected at an angle after passing through the collimator 33.

[0031] The collimator 33 is movably mounted on the collimator mounting block 32 on the side facing the detection hole 21 and extends obliquely upward towards the detection hole 21. Specifically, the collimator 33 is inserted into the collimator mounting block 32 and can move along the collimator mounting block 32 and can be detachably connected to the collimator mounting block 32. Thus, the collimator 33 can be replaced as needed, and the structure is simplified, thereby shortening the distance between the collimator 33 and the metal to be detected.

[0032] The X-ray generator 34 is positioned on the side of the collimator mounting block 32 away from the detection hole 21. The X-ray generator 34 is configured to emit X-rays into the precious metal to be detected within the detection hole 21 through the collimator 33. Furthermore, to ensure the efficiency of the X-ray operation, a heat sink 5 is provided on the surface of the X-ray generator 34, and a cooling fan 51 is fixedly installed at the bottom of the heat sink 5, which can effectively prevent the X-ray generator 34 from overheating.

[0033] In one implementation, such as Figure 3-4 As shown, the detector assembly 4 includes a second fixing plate 41 and a detector 42.

[0034] The second fixing plate 41 is connected to the detection panel 2 and extends obliquely downward. Specifically, the second fixing plate 41 has a second horizontal section 411 connected to the detection panel 2 and a second extension section 412 extending obliquely downward from the second horizontal section 411. The second extension section 412 extends obliquely downward from the end of the second horizontal section 411 away from the detection hole 21 in a direction away from the detection hole 21. Preferably, the second extension section 412 is arranged parallel to the first extension section 312. Further, a guide groove 4121 is formed on the second extension section 412 along its length direction, and the detector 42 can move along the guide groove 4121 and be fixed in the guide groove 4121. For example, the detector 42 is fixed to the guide groove 4121 by screws. When it needs to be adjusted, the screws are loosened, and the detector 42 can move along the guide groove 4121. After moving to the appropriate position, the screws are tightened to fix the detector 42.

[0035] Detector 42 is mounted on the second fixed plate 41 and extends into the detection hole 21 to receive the fluorescence emitted by the noble metal after it has been irradiated by X-rays. Specifically, detector 42 is mounted on the second extension section 412.

[0036] In one implementation, such as Figure 5 As shown, to ensure that X-rays accurately irradiate the sample to be tested, the precious metal detector is also equipped with a camera assembly 6, which is used to determine the position of the precious metal to be tested within the detection aperture 21 so that the precious metal to be tested is visible. The camera assembly 6 includes a fixed bracket 61, a camera 62, and an auxiliary light source 63.

[0037] The mounting bracket 61 is positioned directly below the detection hole 21. The camera 62 is mounted on the mounting bracket 61 and located below the detection hole 21, with the camera 62 facing the detection hole 21. The X-ray assembly 3 and the detector assembly 4 are located on either side of the camera 62, and because the X-ray assembly 3 and the detector assembly 4 are tilted, they do not affect the positioning of the camera 62 on the precious metal, i.e., the field of view of the camera 62.

[0038] An auxiliary light source 63 is positioned to the side of the camera 62, with its height lower than that of the camera 62, to illuminate the precious metal. Preferably, two auxiliary light sources 63 are provided, one on each side of the camera 62. The two auxiliary light sources 63 can illuminate the precious metal to be detected, providing a bright field of view for the camera 62. Simultaneous illumination by the two auxiliary light sources 63 can avoid optical ghosting, solve the sample reflection problem, and improve the positioning effect. The auxiliary light source 63 can be an LED light.

[0039] The precious metal detector also includes a control board 7 and a high-voltage power supply 8. The control board 7 is used to control the operation of the X-ray assembly 3, the detector assembly 4, the camera assembly 6, and other cooperating components. The high-voltage power supply 8 is used to supply power to the X-ray assembly 3. It is understood that the precious metal detector also includes other electronic devices, such as switches and displays; these are conventional techniques in the field and will not be described in detail here.

[0040] In summary, the collimator 33 of this utility model's precious metal detector is detachable and can be replaced as needed without requiring additional replacement structures, simplifying the collimator 33 structure. Furthermore, the positions of the collimator 33 and detector 42 are adjustable and tilted relative to the detection panel, thereby shortening the distance between the X-ray generator 34, detector 42, and the precious metal to be detected. This increases the energy intensity of the characteristic spectrum of the precious metal irradiated by X-rays and the fluorescence intensity received by the detector 42 after laser irradiation of the precious metal, thus improving the accuracy of detection and analysis. By changing the arrangement of the X-ray component 3 and detector component 4, the internal structure of this precious metal detector is optimized, and a heat sink 5 and cooling fan 51 are included, improving the instrument's stability and accuracy. In addition, through the optimization of the internal structure, this precious metal detector has fewer components, a smaller size, lower power consumption, and better detection results.

[0041] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precious metal detector, characterized in that, include: The main housing has an openable and closable top cover; A detection panel is disposed inside the main housing and located below the upper cover. The detection panel has a detection hole for accommodating the precious metal to be detected. An X-ray assembly is obliquely connected below the detection panel. The X-ray assembly includes a detachable collimator and is oriented to obliquely emit X-rays toward the precious metal within the detection aperture. and A detector assembly is tilted and connected below the detection panel and positioned relative to the X-ray assembly. The detector assembly is configured to receive the fluorescence generated by the noble metal after it has been irradiated by X-rays.

2. The precious metal detector according to claim 1, characterized in that, The X-ray assembly includes: A first fixing plate is connected to the detection panel and extends obliquely downward below the detection hole; A collimator mounting block is disposed on the first fixing plate, and the collimator is mounted on the collimator mounting block; and An X-ray generator is disposed on the side of the collimator mounting block away from the detection aperture, and the X-ray generator is configured to emit X-rays through the collimator into the detection aperture toward the precious metal to be detected.

3. The precious metal detector according to claim 2, characterized in that, The collimator is inserted into the collimator mounting block and is detachably connected to the collimator mounting block.

4. The precious metal detector according to claim 2, characterized in that, The first fixing plate has a first horizontal section connected to the detection panel and a first extension section extending obliquely downward from the first horizontal section. The collimator mounting block is disposed on the first extension section and the collimator is disposed perpendicularly to the plane of the first extension section.

5. The precious metal detector according to claim 2, characterized in that, The surface of the X-ray generator is provided with a heat sink, and a cooling fan is fixedly installed at the bottom of the heat sink.

6. The precious metal detector according to claim 1, characterized in that, The detector assembly also includes: A second fixing plate is connected to the detection panel and extends obliquely downward; and A detector is mounted on the second fixed plate and extends into the detection hole to receive the fluorescence emitted by the noble metal after it is irradiated by X-rays.

7. The precious metal detector according to claim 6, characterized in that, The second fixing plate has a second horizontal section connected to the detection panel and a second extension section extending obliquely downward from the second horizontal section, and the detector is disposed on the second extension section.

8. The precious metal detector according to claim 7, characterized in that, The second extension has a guide groove along its length, and the detector can move along the guide groove and be fixed in the guide groove.

9. The precious metal detector according to claim 1, characterized in that, It also includes a camera assembly for determining the position of the precious metal to be detected within the detection aperture.

10. The precious metal detector according to claim 9, characterized in that, The camera component includes: A fixed bracket is positioned below the detection hole; A camera is mounted on the fixed bracket and located below the detection port; the X-ray assembly and detector assembly are located on either side of the camera, respectively. An auxiliary light source is positioned to the side of the camera and at a lower height than the camera to illuminate the precious metal to be detected.

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