CN214472824U

CN214472824U - Gold jewelry detects desk-top spectroscope

Info

Publication number: CN214472824U
Application number: CN202120186466.0U
Authority: CN
Inventors: 杨林; 王雷; 卢仲明; 卢仲春
Original assignee: Laboratory Of Guizhou Geology And Mineral Resources Center (quality Inspection Station For Gold And Gem Products Of Mineral Products In Guizhou Province)
Current assignee: Laboratory Of Guizhou Geology And Mineral Resources Center (quality Inspection Station For Gold And Gem Products Of Mineral Products In Guizhou Province)
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-22
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a gold jewelry detection desk-top spectroscope, which relates to the technical field of desk-top spectroscopes and comprises a frame plate, wherein a narrow edge at one side of the frame plate is connected with a dust cover through a damping rotating shaft, an instrument basket is arranged at the inner side of the dust cover, a connecting substrate is arranged on the side wall at the inner side of the frame plate, a sliding plate is arranged at the side part of the connecting substrate, the outer side of the sliding plate is sequentially connected with a spectroscope component and a light source component in a sliding way, a clamping mechanism is arranged between the spectroscope component and the light source component, a storage battery is arranged at the bottom of the sliding plate, and the storage battery is electrically connected with the light source component; the clamping mechanism consists of a clamping frame, a clamping assembly and a telescopic square rod, the clamping assembly is connected to the inner side of the clamping frame in a sliding manner, and the telescopic square rod is connected to one end of the clamping frame; not only can avoid being stained with dust when the cleaning machine is idle, but also can reduce the cleaning times and time; moreover, the distance among the detected gem, the light source and the spectroscope can be conveniently adjusted.

Description

Gold jewelry detects desk-top spectroscope

Technical Field

The utility model relates to a desk-top spectroscope technical field specifically says to a gold jewelry detects desk-top spectroscope.

Background

The desk-top spectroscope is a spectroscope arranged on the support; the spectroscope used by the jeweler can be divided into a handheld spectroscope and a desktop spectroscope in terms of the use mode; the handheld type has the advantages of small size, exquisite appearance and convenient carrying; the disadvantage is that the use is inconvenient, an observer needs to hold the spectroscope with one hand and an external light source with the other hand to align the gemstone to be detected, which obviously affects the detection efficiency; the commonly used table spectroscope is a detection instrument which is formed by uniformly assembling a handheld spectroscope, a necessary light source and a support for clamping a gem and can be arranged on a workbench;

however, it has been found through analysis that the existing desk-top spectroscope is easily contaminated with dust when being left unused, and it takes much time to clean; moreover, the existing table spectroscope cannot conveniently adjust the distance between the detected gemstone, the light source and the spectroscope.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above disadvantages, the present invention provides a table spectroscope for gold and jewelry inspection, which can avoid contamination with dust when in idle, and reduce the number of cleaning times and time; moreover, the distance among the detected gem, the light source and the spectroscope can be conveniently adjusted.

The utility model is realized in such a way, a gold and jewelry detection desk type spectroscope is constructed, which comprises a frame plate, wherein a narrow edge at one side of the frame plate is connected with a dust cover through a damping rotating shaft, an instrument basket is arranged at the inner side of the dust cover, a connecting substrate is arranged on the side wall at the inner side of the frame plate, a sliding plate is arranged at the side part of the connecting substrate, the outer side of the sliding plate is sequentially connected with a spectroscope component and a light source component in a sliding way, a clamping mechanism is arranged between the spectroscope component and the light source component, a storage battery is arranged at the bottom of the sliding plate, and the storage battery is electrically connected with the light source component; the spectroscope component consists of a spectroscope, clamping strips and a sliding clamp seat, wherein the clamping strips are arranged on two sides of the spectroscope, and the spectroscope is embedded into one end of the sliding clamp seat; grooves are arranged on two sides of the sliding plate, and threaded connecting holes are formed in one sides of the grooves; the light source component consists of an optical fiber lamp, clamping strips A and a sliding clamp seat A, the clamping strips A are arranged on two sides of the optical fiber lamp, and the optical fiber lamp is embedded into one end of the sliding clamp seat A; the clamping mechanism is composed of a clamping frame, a clamping assembly and a telescopic square rod, the clamping assembly is connected to the inner side of the clamping frame in a sliding mode, and the telescopic square rod is connected to one end of the clamping frame.

Furthermore, the sliding clamping seat is composed of a limiting frame, a square outer sleeve, an inverted cone-shaped through hole, a spring buckle, a square inner tube, a clamping frame and a fastener, the limiting frame is connected to one end of the square inner tube, the other end of the square inner tube is embedded into the square outer sleeve and is in sliding connection with the square outer sleeve, the clamping frame is arranged at one end of the square outer sleeve, the fastener is connected to one side of the clamping frame, the inverted cone-shaped through hole is formed in the top of the square outer sleeve, and the spring buckle is arranged at the top of one end of the square inner tube; one side of the clamping frame is provided with a threaded through hole, the fastener is composed of a threaded column and a turntable, one end of the threaded column is connected to one side of the turntable, and the other end of the threaded column penetrates through the threaded through hole;

the structure principle of the sliding clamping seat is consistent with that of the sliding clamping seat A, one end of the spectroscope is embedded into the limiting frame, the spectroscope is clamped through the clamping strip, the clamping frame is nested on the outer side of the sliding plate, the whole sliding clamping seat is driven to slide through the clamping frame in a sliding mode on the outer side of the sliding plate, the height of the spectroscope can be adjusted, the distance between the spectroscope and the clamping mechanism is adjusted, when the spectroscope is adjusted to a proper position, the threaded through hole is aligned with the threaded connecting hole, then the turntable is screwed to drive the threaded column to be screwed into the threaded connecting hole, the sliding clamping seat is fixed at the proper height position on the outer side of the sliding plate, the position of the spectroscope is fixed, then the square inner pipe is pulled out by the limiting frame by a proper length, the spring fastener gradually shrinks through the inclined plane of the inverted cone-shaped through hole, enters the square inner pipe along with the sliding of the square inner pipe, when the square inner pipe is pulled out by the proper length, the spring fastener can reset and rebound in the square outer sleeve, therefore, the spring fastener can support the square outer sleeve, the friction between the square inner tube and the square outer sleeve is increased, and the length of the square inner tube pulled out is fixed.

Furthermore, the clamping frame consists of a limiting channel, limiting slideways and a clamping plate A, the limiting slideways are arranged on two sides of the limiting channel, the clamping plate A is arranged at one end of the clamping frame, and a rubber gasket A is arranged on one side of the clamping plate A; the through-hole has been seted up to spacing passageway one end, and this through-hole diameter is less than spacing passageway, and rubber gasket A top is equipped with spacing, is convenient for spacing the gold jewelry top, prevents the gold jewelry landing, can avoid the gold jewelry to be held out the mar through rubber gasket A simultaneously.

Furthermore, the clamping assembly consists of a pull handle, a clamping plate B, a limiting rod and a fastening spring, wherein one end of the pull handle is connected with the clamping plate B, the limiting rod is arranged on two sides of the pull handle, the fastening spring is nested on the outer side of the pull handle, and a rubber gasket B is arranged on one side of the clamping plate B;

fastening spring one end is connected in spacing passageway one end, rubber gasket B top is equipped with spacing, gag lever post one end is embedded in inside spacing slide, the gag lever post other end is connected in grip block B opposite side, take out corresponding centre gripping apparatus from the apparatus basket and get up the gold jewelry centre gripping, then the pulling pull handle is moved outwards, grip block B oppression fastening spring shrink gets into spacing passageway this moment, the gag lever post slides into inside spacing slide simultaneously, then move the gold jewelry to between grip block B and grip block A, and be less than the spacing of rubber gasket B and rubber gasket A, make spacing cover at gold jewelry top border, then loosen the power of pulling the pull handle, fastening spring resets and drives grip block B and draws close towards grip block A department and live the gold jewelry centre gripping, and simultaneously sideslips, slide in spacing slide inside through the gag lever post, prevent the centre gripping subassembly.

Furthermore, the telescopic square rod consists of a square outer sleeve rod, a square inner sleeve rod, an inverted cone-shaped through hole A and a spring fastener A, one end of the square inner sleeve rod is embedded into the square outer sleeve rod, the inverted cone-shaped through hole A is formed in the top of the square outer sleeve rod, and the spring fastener A is installed at one end of the square inner sleeve rod; when the square inner loop bar is pulled out by a proper length, the spring fastener A gradually shrinks through the inclined plane of the inverted cone-shaped through hole A and slides into the square outer loop bar, meanwhile, the spring fastener A can reset in the square outer loop bar and rebound to prop against the square outer loop bar, the friction force between the square outer loop bar and the square inner loop bar is increased, and the pulled-out length of the square inner loop bar is fixed.

The utility model discloses a concrete advantage embodies:

the method has the advantages that: the utility model discloses after having used up, with flexible square pole shrink, inside sliding into square outer tube with square inner tube simultaneously, reduce, then slide spectroscope subassembly to the position that is close fixture through the slip cassette, twist and move inside the carousel drives screw post screw in threaded connection hole for the slip cassette is fixed in the position that is close fixture, then folds the dust cover, can avoid being infected with the dust, reduces clean number of times and time.

The method has the advantages that: the clamping frame slides on the outer side of the sliding plate to drive the whole sliding clamping seat to slide, so that the height of the spectroscope can be adjusted, the distance between the spectroscope and the clamping mechanism is adjusted, after the spectroscope is adjusted to a proper position, the threaded through hole is aligned with the threaded connecting hole, then the turntable is screwed to drive the threaded column to be screwed into the threaded connecting hole, the sliding clamping seat is fixed at a proper height position on the outer side of the sliding plate, and the position of the spectroscope is fixed; then the optical fiber lamp is driven by the sliding clamping seat A to slide upwards, so that the optical fiber lamp is close to the bottom of the clamped gold jewelry, and then the sliding clamping seat A is fixed at a proper height position in a clamping manner of the sliding clamping seat; through the above, the distance between the detected jewel, the light source and the spectroscope can be conveniently adjusted, and the gold jewelry can be conveniently detected.

Drawings

FIG. 1 is a schematic view of the structure of the table spectroscope for gold and jewelry inspection of the present invention;

FIG. 2 is a side view of the slide plate of the present invention;

fig. 3 is a sectional view of the slide holder of the present invention;

fig. 4 is a top view of the card frame of the present invention;

FIG. 5 is a schematic structural view of the clamping mechanism of the present invention;

fig. 6 is a rubber gasket B of the present invention;

FIG. 7 is a schematic view of the structure of the telescopic square rod of the present invention;

fig. 8 is a schematic view of the folding structure of the dust cover of the present invention.

The figure illustrates the format: the frame plate 1, the dust cover 2, the spectroscope assembly 3, the sliding plate 4, the light source assembly 5, the storage battery 6, the clamping mechanism 7, the connection substrate 8, the instrument basket 21, the spectroscope 31, the clamping strip 32, the sliding clamping seat 33, the limiting frame 331, the square outer sleeve 332, the inverted-cone-shaped through hole 333, the spring fastener 334, the square inner tube 335, the clamping frame 336, the fastener 337, the threaded through hole 3361, the threaded column 3372, the dial 3371, the groove 41, the threaded connection hole 42, the fiber lamp 51, the clamping strip a52, the sliding clamping seat a53, the clamping frame 71, the clamping assembly 72, the telescopic square rod 73, the limiting channel 711, the limiting slideway 712, the clamping plate a713, the pull handle 721, the clamping plate B722, the limiting rod 723, the fastening spring 724, the rubber gasket a7131, the rubber gasket B7221, the square outer sleeve 731, the square inner sleeve 732, the inverted-cone-shaped through hole a733, and the spring fastener a 734.

Detailed Description

The present invention will be described in detail below with reference to the attached drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention; furthermore, the terms "first," "second," "third," "upper, lower, left, right," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a gold jewelry detection desk-top spectroscope through improvement, as shown in the attached drawing of the specification, the method can be implemented as follows; the device comprises a frame plate 1, wherein a dust cover 2 is connected to the narrow edge of one side of the frame plate 1 through a damping rotating shaft, an instrument basket 21 is arranged on the inner side of the dust cover 2, a connecting base plate 8 is arranged on the side wall of the inner side of the frame plate 1, a sliding plate 4 is arranged on the side part of the connecting base plate 8, a spectroscope component 3 and a light source component 5 are sequentially connected to the outer side of the sliding plate 4 in a sliding manner, a clamping mechanism 7 is arranged between the spectroscope component 3 and the light source component 5, a storage battery 6 is arranged at the bottom of the sliding plate 4, and the storage battery 6 is electrically connected with the light source component 5; the spectroscope component 3 is composed of a spectroscope 31, clamping strips 32 and a sliding clamp seat 33, wherein the clamping strips 32 are arranged at two sides of the spectroscope 31, and the spectroscope 31 is embedded into one end of the sliding clamp seat 33; grooves 41 are arranged on two sides of the sliding plate 4, and threaded connecting holes 42 are formed in one side of each groove 41; the light source assembly 5 comprises an optical fiber lamp 51, clamping strips A52 and a sliding card seat A53, the clamping strips A52 are arranged on two sides of the optical fiber lamp 51, and the optical fiber lamp 51 is embedded into one end of the sliding card seat A53; the clamping mechanism 7 is composed of a clamping frame 71, a clamping assembly 72 and a telescopic square rod 73, wherein the clamping assembly 72 is connected to the inner side of the clamping frame 71 in a sliding mode, and the telescopic square rod 73 is connected to one end of the clamping frame 71.

More specifically, the sliding card seat 33 is composed of a limit frame 331, a square outer sleeve 332, an inverted-cone through hole 333, a spring fastener 334, a square inner tube 335, a card frame 336 and a fastener 337, wherein the limit frame 331 is connected to one end of the square inner tube 335, the other end of the square inner tube 335 is embedded in the square outer sleeve 332 and is slidably connected with the square outer sleeve 332, the card frame 336 is arranged at one end of the square outer sleeve 332, the fastener 337 is connected to one side of the card frame 336, the inverted-cone through hole 333 is opened at the top of the square outer sleeve 332, and the spring fastener 334 is arranged at the top of one end of the square inner tube 335; a threaded through hole 3361 is formed in one side of the clamping frame 336, the fastener 337 comprises a threaded post 3372 and a rotary table 3371, one end of the threaded post 3372 is connected to one side of the rotary table 3371, and the other end of the threaded post 3372 passes through the threaded through hole 3361;

the structure principle of the sliding clamping seat 33 is consistent with that of the sliding clamping seat A53, one end of the spectroscope 31 is embedded into the limiting frame 331, the spectroscope 31 is clamped by the clamping strip 32, the clamping frame 336 is embedded at the outer side of the sliding plate 4, the whole sliding clamping seat 33 is driven to slide by the sliding of the clamping frame 336 at the outer side of the sliding plate 4, the height of the spectroscope 31 can be adjusted, so that the distance between the spectroscope 31 and the clamping mechanism 7 is adjusted, after the spectroscope 31 is adjusted to a proper position, the threaded through hole 3361 is aligned with the threaded connecting hole 42, then the rotary disc 3371 is screwed to drive the threaded column 3372 to be screwed into the threaded connecting hole 42, so that the sliding clamping seat 33 is fixed at a proper height position at the outer side of the sliding plate 4, the position of the spectroscope 31 is fixed, then the square inner tube 335 is pulled out by a proper length through the limiting frame 331, at the moment, the spring fastener 334 gradually shrinks through the inclined plane of the inverted cone-shaped through hole 333 and enters the square outer sleeve 332 along with the sliding of the square inner tube 335, when the square inner tube 335 is pulled out to a proper length, the spring button 334 is reset and rebounded inside the square outer sleeve 332, so that the spring button 334 abuts against the square outer sleeve 332, friction between the square inner tube 335 and the square outer sleeve 332 is increased, and the pulled-out length of the square inner tube 335 is fixed.

More specifically, the clamping frame 71 is composed of a limiting channel 711, a limiting slideway 712 and a clamping plate A713, the limiting slideway 712 is arranged on two sides of the limiting channel 711, the clamping plate A713 is arranged at one end of the clamping frame 71, and a rubber gasket A7131 is arranged on one side of the clamping plate A713; the through-hole has been seted up to spacing passageway 711 one end, and this through-hole diameter is less than spacing passageway 711, and rubber gasket A7131 top is equipped with spacing, is convenient for spacing gold jewelry top, prevents the gold jewelry landing, can avoid the gold jewelry to be held out the mar through rubber gasket A7131 simultaneously.

More specifically, the clamping assembly 72 is composed of a pull handle 721, a clamping plate B722, a limiting rod 723 and a fastening spring 724, wherein one end of the pull handle 721 is connected with the clamping plate B722, the limiting rod 723 is arranged at two sides of the pull handle 721, the fastening spring 724 is nested outside the pull handle 721, and one side of the clamping plate B722 is provided with a rubber gasket B7221;

one end of a fastening spring 724 is connected with one end of a limiting channel 711, the top of a rubber gasket B7221 is provided with a limiting strip, one end of a limiting rod 723 is embedded in a limiting slide 712, the other end of the limiting rod 723 is connected with the other side of a clamping plate B722, a corresponding clamping device is taken out of the instrument basket 21 to clamp the gold jewelry, then a pull handle 721 is pulled to slide outwards, at the moment, the clamping plate B722 presses the fastening spring 724 to contract into the limiting channel 711, the limiting rod 723 slides into the limiting slide 712, then the gold jewelry is moved between the clamping plate B722 and a clamping plate A713 and is lower than the limiting strips of the rubber gasket B7221 and the rubber gasket A7131, so that the limiting strip covers the top edge of the gold jewelry, then the force for pulling the pull handle 721 is released, the fastening spring 724 resets to drive the clamping plate B722 to approach the clamping plate A713 to clamp the gold jewelry, and simultaneously, the limiting rod 723 slides in the limiting slide 712, preventing the clamping assembly 72 from slipping sideways.

More specifically, the telescopic square rod 73 is composed of a square outer sleeved rod 731, a square inner sleeved rod 732, an inverted-cone-shaped through hole a733 and a spring fastener a734, one end of the square inner sleeved rod 732 is embedded into the square outer sleeved rod 731, the inverted-cone-shaped through hole a733 is arranged at the top of the square outer sleeved rod 731, and the spring fastener a734 is installed at one end of the square inner sleeved rod 732; when the square inner loop bar 732 is pulled out by a proper length of the square outer loop bar 731, the spring fastener A734 gradually shrinks through the inclined surface of the inverted cone-shaped through hole A733 and slides into the square outer loop bar 731, and meanwhile, the spring fastener A734 can reset and rebound in the square outer loop bar 731 to prop against the square outer loop bar 731, so that the friction force between the square outer loop bar 731 and the square inner loop bar 732 is increased, and the pulled-out length of the square inner loop bar 732 is fixed.

The working principle of the gold jewelry detection table type spectroscope is as follows: the dust cover 2 is opened, the corresponding clamping apparatus is taken out from the apparatus basket 21 to clamp the gold jewelry, then the pull handle 721 is pulled to slide outwards, at the moment, the clamping plate B722 presses the fastening spring 724 to contract into the limiting channel 711, meanwhile, the limiting rod 723 slides into the limiting slide 712, then the gold jewelry is moved between the clamping plate B722 and the clamping plate A713 and is lower than the limiting strips of the rubber gasket B7221 and the rubber gasket A7131, so that the limiting strips cover the top edge of the gold jewelry, then the force for pulling the pull handle 721 is released, the fastening spring 724 is reset to drive the clamping plate B722 to approach to the clamping plate A713 to clamp the gold jewelry, then the sliding clamping seat 33 drives the spectroscope 31 to slide to a position close to the clamping mechanism 7, so that the spectroscope 31 approaches the clamped gold jewelry, then the rotary table 3371 is screwed to drive the threaded column 3372 to be screwed into the threaded connecting hole 42, so that the sliding seat 33 is fixed at a proper height position outside the sliding plate 4, fixing the position of the spectroscope 31, driving the optical fiber lamp 51 to slide upwards by the sliding clamping seat A53, enabling the optical fiber lamp 51 to be close to the bottom of the clamped gold jewelry, fixing the sliding clamping seat A53 at a proper height position in a clamping mode of the sliding clamping seat 33, powering the optical fiber lamp 51 by the storage battery 6, turning on the optical fiber lamp 51 to irradiate the clamped gold jewelry, and observing the gold jewelry through the spectroscope 31.

In conclusion; compared with the existing desk type spectroscope, the desk type spectroscope for detecting gold and jewelry of the utility model can avoid being infected with dust when being idle, and reduce the cleaning times and time; moreover, the distance among the detected gem, the light source and the spectroscope can be conveniently adjusted.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a desktop spectroscope is detected to gold jewelry, includes frame plate (1), its characterized in that: the device comprises a frame plate (1), a dust cover (2) is connected to the narrow edge of one side of the frame plate (1) through a damping rotating shaft, an instrument basket (21) is arranged on the inner side of the dust cover (2), a connecting base plate (8) is arranged on the side wall of the inner side of the frame plate (1), a sliding plate (4) is arranged on the side portion of the connecting base plate (8), a beam splitter component (3) and a light source component (5) are sequentially connected to the outer side of the sliding plate (4) in a sliding mode, a clamping mechanism (7) is arranged between the beam splitter component (3) and the light source component (5), a storage battery (6) is installed at the bottom of the sliding plate (4), and the storage battery (6) is electrically connected with the light source component (5); the spectroscope component (3) is composed of a spectroscope (31), clamping strips (32) and a sliding clamp seat (33), wherein the clamping strips (32) are arranged on two sides of the spectroscope (31), and the spectroscope (31) is embedded into one end of the sliding clamp seat (33); grooves (41) are formed in two sides of the sliding plate (4), and threaded connecting holes (42) are formed in one side of each groove (41); the light source assembly (5) is composed of an optical fiber lamp (51), clamping strips A (52) and a sliding clamping seat A (53), the clamping strips A (52) are arranged on two sides of the optical fiber lamp (51), and the optical fiber lamp (51) is embedded into one end of the sliding clamping seat A (53); fixture (7) comprises centre gripping frame (71), centre gripping subassembly (72) and flexible square bar (73), centre gripping subassembly (72) sliding connection in centre gripping frame (71) are inboard, flexible square bar (73) are connected in centre gripping frame (71) one end.

2. The gold jewelry detection desk type spectroscope of claim 1, wherein: the sliding clamping seat (33) is composed of a limiting frame (331), a square outer sleeve (332), an inverted-cone-shaped through hole (333), a spring fastener (334), a square inner tube (335), a clamping frame (336) and a fastener (337), wherein the limiting frame (331) is connected to one end of the square inner tube (335), the other end of the square inner tube (335) is embedded into the square outer sleeve (332) and is in sliding connection with the square outer sleeve (332), the clamping frame (336) is arranged at one end of the square outer sleeve (332), the fastener (337) is connected to one side of the clamping frame (336), the inverted-cone-shaped through hole (333) is arranged at the top of the square outer sleeve (332), and the spring fastener (334) is arranged at the top of one end of the square inner tube (335); a threaded through hole (3361) is formed in one side of the clamping frame (336), the fastener (337) is composed of a threaded column (3372) and a rotary table (3371), one end of the threaded column (3372) is connected to one side of the rotary table (3371), and the other end of the threaded column (3372) penetrates through the threaded through hole (3361).

3. The gold jewelry detection desk type spectroscope of claim 1, wherein: the clamping frame (71) is composed of a limiting channel (711), a limiting slide way (712) and a clamping plate A (713), the limiting slide way (712) is arranged on two sides of the limiting channel (711), the clamping plate A (713) is arranged at one end of the clamping frame (71), and a rubber gasket A (7131) is arranged on one side of the clamping plate A (713).

4. The gold jewelry detection desk type spectroscope of claim 1, wherein: the clamping assembly (72) is composed of a pull handle (721), a clamping plate B (722), a limiting rod (723) and a fastening spring (724), one end of the pull handle (721) is connected with the clamping plate B (722), the limiting rod (723) is arranged on two sides of the pull handle (721), the fastening spring (724) is nested outside the pull handle (721), and a rubber gasket B (7221) is arranged on one side of the clamping plate B (722).

5. The gold jewelry detection desk type spectroscope of claim 1, wherein: the telescopic square rod (73) is composed of a square outer loop rod (731), a square inner loop rod (732), an inverted-cone-shaped through hole A (733) and a spring fastener A (734), one end of the square inner loop rod (732) is embedded into the square outer loop rod (731), the inverted-cone-shaped through hole A (733) is formed in the top of the square outer loop rod (731), and the spring fastener A (734) is installed at one end of the square inner loop rod (732).