A fluorescence spectrum comparison device for precious wood and different test agents

Abstract

The present invention relates to the field of wood detection technology, and in particular to a fluorescence spectrum comparison device for precious wood and different test agents. The present invention provides a fluorescence spectrum comparison device for precious wood and different test agents that can display the color status in a corresponding test tube in real time, which is convenient for judging the recorded fluorescence spectrum. A fluorescence spectrum comparison device for precious wood and different test agents includes a test box, a display screen, a tester, etc. The rear part of the test box is rotatably connected to a plurality of display screens that are symmetrically distributed on the left and right, and the tester is connected to the front side of the bottom of the test box. The present invention rotates the rotating rod so that the first gear drives the corresponding adjustment dial to rotate, so that the sliding frame drives the connecting rod to slide, so that the wedge blocks all push the display screen to rotate. At this time, the display screen can be flipped and unfolded following the change and adjustment of the corresponding test tube position, and the color of the corresponding test tube is displayed in real time, which is convenient for the detection personnel to intuitively record the color status in the test tube.

Description

Technical Field

[0001] The invention relates to the technical field of wood detection, in particular to a fluorescence spectrum comparison device for precious wood and different test agents. Background Art

[0002] When manufacturing wooden products, wood is required to be used as the basic material. Different qualities of wood will affect the quality of wooden products and also the sales price of wooden products. In order to detect the authenticity of the wood raw materials of wooden products, reagents can be added to react with wood samples. The color displayed after the reaction is compared with the fluorescence spectrum to determine the true state of the wood. When detecting wood, existing devices will sample the wood, place the sampled sawdust or wood powder in a test tube, and then add different test reagents to the test tube to react with the sawdust or wood powder to show corresponding colors, which are then compared based on the colors. However, during the color comparison process of the existing device, the test personnel need to carefully observe the color in the test tube. When there are too many test samples, it will make color recording inconvenient, and the test tube color will easily not match the recorded color, resulting in data confusion.

[0003] Therefore, in order to solve the above problems, a fluorescence spectrum comparison device is developed which can display the color status in the corresponding test tube in real time, so as to facilitate the judgment of the recorded precious wood and different test agents. Summary of the invention

[0004] In order to overcome the disadvantages of existing devices that, during the color comparison process, the test personnel need to carefully observe the color in the test tube, which will make color recording inconvenient when there are too many test samples, and the test tube color is prone to mismatch with the recorded color, resulting in data confusion. The present invention provides a fluorescence spectrum comparison device that can display the color status in the corresponding test tube in real time, which is convenient for judging the recorded precious wood and different test agents.

[0005] The technical solution of the present invention is: a fluorescence spectrum comparison device for precious wood and different test reagents, including a test box, a display screen, a tester, a conversion mechanism and a flipping mechanism, a plurality of display screens for displaying the color of reagents symmetrically distributed on the left and right are rotatably connected to the rear of the test box, a tester for testing wood is connected to the front side of the bottom of the test box, a conversion mechanism for quickly adjusting and converting the test tubes is provided on the test box, and a flipping mechanism for real-time matching and changing the display screen with the corresponding test tube is provided on the test box.

[0006] Furthermore, the conversion mechanism includes an adjusting turntable, a first gear, a rotating rod, a placing turntable and a limit bin. Two symmetrical adjusting turntables for converting the positions of test tubes are rotatably connected inside the test box. Two symmetrical first gears that can mesh with adjacent adjusting turntables are rotatably connected at the front of the test box. The tops of the first gears are connected to rotating rods for easy rotation by inspection personnel. The lower parts of the adjusting turntables are connected to placing turntables for placing test tubes. The placing turntables are connected to five limit bins for limiting the placement of test tubes.

[0007] Furthermore, the flipping mechanism includes a second gear, a toothed belt, a limit block, a sliding rod, a sliding frame, a connecting rod, a wedge block and a spiral spring. The bottom of the adjusting turntable is connected to the second gear, the left part of the test box is slidably connected to a front-and-rear symmetrical sliding rod, the right side of the sliding rod is connected to a toothed belt that can mesh with the adjacent second gear, the inside of the test box is connected to a plurality of limit blocks that are symmetrically distributed on the left and right for guiding the adjacent toothed belts, the left and right sides of the test box are slidably connected to sliding frames, the sliding frames are connected to adjacent sliding rods, the sides of the sliding frames that are away from each other are rotatably connected to four connecting rods for pushing the display screen, the upper part of the connecting rod is rotatably connected to a wedge block that can contact the display screen, and a spiral spring is connected between the wedge block and the adjacent connecting rod, and the spiral spring is wound around the adjacent wedge blocks.

[0008] Furthermore, it also includes a limiting mechanism, which includes a fixing frame, a limiting frame and a torsion spring. Two left-right symmetrical fixing frames are connected to the upper rear side of the test box. Two limiting frames for positioning the test tubes are rotatably connected to the fixing frames. Torsion springs are connected between the limiting frames and adjacent fixing frames, and the torsion springs are wound around the adjacent limiting frames.

[0009] Furthermore, it also includes a connecting mechanism, which includes a fixed plate, a rotating plate, a handle, a fixed block and a lever. The fixed plate is connected to the rear side of the test box, and the front sides of the left and right parts of the fixed plate are rotatably connected to the rotating plates. The rotating plates are connected to adjacent display screens. A handle is connected between the rear sides of the rotating plates for the convenience of the operator to hold. Two fixed blocks symmetrically connected to the fixed plate are connected to the fixed plate, and the front sides of the fixed blocks are rotatably connected to two upper and lower levers for limiting the display screen.

[0010] Furthermore, it also includes a fixing mechanism, which includes a fixing seat and a locking plate. The front sides of the left and right parts of the test box are both connected with the fixing seats, and the locking plate for locking the display screen is rotatably connected between the front parts of the fixing seats.

[0011] Furthermore, it also includes an anti-collision mechanism, which includes a damper, a support plate and a telescopic spring. A plurality of dampers for buffering are connected to the upper part of the test box. The dampers are slidably connected to support plates for supporting the display screen. Telescopic springs are connected between the support plates and adjacent dampers, and the telescopic springs are wound around adjacent dampers.

[0012] Furthermore, the rotating rods are all provided with rotating handles.

[0013] Furthermore, the wedge blocks are all L-shaped structures.

[0014] Furthermore, the limiting frames are all C-shaped structures.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention rotates the rotating rod so that the first gear drives the corresponding adjusting dial to rotate, and the second gear drives the toothed belt to rotate, so that the sliding rod drives the sliding frame to slide, and the sliding frame drives the connecting rod to slide, so that the wedge blocks push the display screen to rotate. At this time, the display screen can flip and unfold following the change and adjustment of the corresponding test tube position, and display the color of the corresponding test tube in real time, which is convenient for the detection personnel to intuitively record the color status in the test tube.

[0016] 2. The present invention limits the position of the test tube by cooperating between the limit frame and the torsion spring, so that the inspector can feel obvious resistance when changing the position of the test tube, which is convenient for changing the positioning of the test tube and avoiding excessive change of the position of the test tube.

[0017] 3. The present invention limits and fixes the display screen by means of a lever, so as to prevent the display screen from colliding with internal components and being damaged during the closing process of the test box. After the closing is completed, the device can be carried and held by means of a handle.

[0018] 4. The present invention uses a locking plate to limit and lock the display screen, thereby preventing the display screen from accidentally flipping open and causing damage during the process of carrying and transporting the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a partial structural schematic diagram of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the conversion mechanism of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the conversion mechanism of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the flip mechanism of the present invention from a first viewing angle.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the flip mechanism of the present invention from a second viewing angle.

[0025] Figure 7 It is a partial structural schematic diagram of the turning mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention.

[0027] Fig. 9 It is a structural schematic diagram of the connecting mechanism of the present invention.

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the connecting mechanism of the present invention.

[0029] Fig.11 It is a three-dimensional structural schematic diagram of the fixing mechanism of the present invention.

[0030] Fig.12 It is a three-dimensional structural schematic diagram of the anti-collision mechanism of the present invention.

[0031] Fig.13 It is a structural schematic diagram of the anti-collision mechanism of the present invention.

[0032] The names and serial numbers of the parts in the figure are: 1_test box, 2_display screen, 3_tester, 4_conversion mechanism, 41_adjusting turntable, 42_first gear, 43_turn rod, 44_placing turntable, 45_limiting bin, 5_flipping mechanism, 51_second gear, 52_toothed belt, 53_limiting block, 54_sliding rod, 55_sliding frame, 56_connecting rod, 57_wedge block, 58_volute spring, 6_limiting mechanism, 61_fixing frame, 62_limiting frame, 63_torsion spring, 7_connecting mechanism, 71_fixing plate, 72_rotating plate, 73_handle, 74_fixing block, 75_dial rod, 8_fixing mechanism, 81_fixing seat, 82_card plate, 9_anti-collision mechanism, 91_damper, 92_support plate, 93_telescopic spring. DETAILED DESCRIPTION

[0033] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] A fluorescence spectrum comparison device for precious wood and different test agents, such as Figure 1 and Figure 2 As shown, it includes a test box 1, a display screen 2, a tester 3, a conversion mechanism 4 and a flipping mechanism 5. Ten display screens 2 symmetrically distributed on the left and right are rotatably connected to the rear of the test box 1. The tester 3 is connected to the front side of the bottom of the test box 1 by bolts. The test box 1 is provided with a conversion mechanism 4 and a flipping mechanism 5.

[0035] It should be noted that when sampling and testing the quality of wood, it is first necessary to sample the sampled wood, scrape wood chips or wood powder and put them into a test tube, then place the test tube on the conversion mechanism 4, adjust and convert the test tube by controlling the conversion mechanism 4, add different reagents into the test tube, and test it through the tester 3. At the same time, as the conversion mechanism 4 is adjusted, the flipping mechanism 5 will be driven to flip the display screen 2, so that the display screen 2 corresponds to the test tube being operated and displays the corresponding color, which is convenient for the inspector to make a quick judgment. After the test is completed, the display screen 2 can be flipped forward to close the test box 1, which is convenient for the inspector to carry and transport.

[0036] like Figure 1 , Figure 3 and Figure 4 As shown, the conversion mechanism 4 includes an adjusting turntable 41, a first gear 42, a rotating rod 43, a placing turntable 44 and a limiting bin 45. Two left-right symmetrical adjusting turntables 41 are rotatably connected inside the test box 1. The adjusting turntable 41 is used to convert the position of the test tube. Two left-right symmetrical first gears 42 are rotatably connected to the front of the test box 1. The first gears 42 can mesh with adjacent adjusting turntables 41. The first gears 42 are all located at the front side of the adjusting turntable 41. The top of the first gears 42 is connected to a rotating rod 43. The rotating rod 43 is provided with a rotating handle to facilitate the operator to rotate the rotating rod 43. The lower part of the adjusting turntable 41 is connected to a placing turntable 44. The placing turntable 44 is used to place the test tube. The placing turntable 44 is connected to five limiting bins 45. The limiting bins 45 are used to limit the placement of the test tube.

[0037] It should be noted that after collecting wood chips or wood powder, the wood chips or wood powder need to be placed in a test tube for centralized testing. First, the test tube is placed on the corresponding placement turntable 44 so that the bottom of the test tube is engaged with the corresponding limit bin 45. At this time, with the cooperation of the adjustment turntable 41 and the placement turntable 44, the test tube can be stably placed to prevent the test tube from tipping over. Then, the rotating rod 43 is rotated to rotate the first gear 42, and the first gear 42 drives the adjustment turntable 41 to rotate, so that the detection personnel can add reagents to the test tube in turn for detection. In summary, by rotating the rotating rod 43, the first gear 42 drives the adjacent adjustment turntable 41 to rotate, so that the position of the test tube can be quickly switched and adjusted, which is convenient for the detection personnel to add reagents to the test tube and improves the detection efficiency.

[0038] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, the flip mechanism 5 includes a second gear 51, a toothed belt 52, a limit block 53, a sliding rod 54, a sliding frame 55, a connecting rod 56, a wedge block 57 and a scroll spring 58. The bottom of the adjusting turntable 41 is connected to the second gear 51, the left part of the test box 1 is slidably connected to the front and rear symmetrical sliding rods 54, and the right side of the sliding rods 54 is connected to the toothed belt 52. The toothed belt 52 can mesh with the adjacent second gear 51. The inside of the test box 1 is connected to six limit blocks 53 symmetrically distributed on the left and right. The limit blocks 53 is used to guide the adjacent toothed belts 52. The left and right sides of the test box 1 are slidably connected with sliding frames 55. The sliding frames 55 are connected to adjacent sliding rods 54. The sides of the sliding frames 55 that are away from each other are rotatably connected with four connecting rods 56. The upper parts of the connecting rods 56 are rotatably connected with wedge blocks 57. The wedge blocks 57 can contact the display screen 2. The wedge blocks 57 are all L-shaped structures and can be snap-connected with the display screen 2. A spiral spring 58 is connected between the wedge blocks 57 and the adjacent connecting rods 56.

[0039] It should be noted that after adding the reagent into the test tube, the reagent will react with the corresponding sawdust or wood powder to show different colors. In order to facilitate the inspector to intuitively record the color status, the color in the corresponding test tube is displayed through the display screen 2. It should be particularly noted that when the inspector rotates the rotating rod 43 so that the first gear 42 drives the adjusting dial 41 to rotate, it will drive the second gear 51 to rotate, so that the toothed belts 52 all start to move, and then push the guide rods to slide to the left. The sliding rod 54 slides to the left, which will drive the sliding racks 55 to slide to the left, so that the connecting rods 56 drive the wedge blocks 57 to slide to the left. As the wedge blocks 57 start to move to the left, the wedge blocks 57 will contact the corresponding display screens 2 and push the display screens 2 to rotate, that is, as the test tube position is adjusted and changed, the corresponding display screens 2 will rotate and adjust, so that the inspector can intuitively observe the color status in the test tube. As the connecting rod 56 drives the wedge blocks 57 to continue to move to the left, under the pressure of the display screen 2, the wedge blocks The blocks 57 will all rotate, so that the scroll springs 58 will all be deformed by force. When the wedge blocks 57 are out of contact with the display screen 2, under the action of the scroll springs 58, the wedge blocks 57 will all rotate and reset, and be engaged with the corresponding display screen 2. Then, as the connecting rod 56 drives the wedge blocks 57 to move rightward and reset, it will drive the display screen 2 to flip and close and reset. Similarly, as the wedge blocks 57 continue to move, the wedge blocks 57 will be out of engagement with the display screen 2, and rotate and reset under the action of the scroll springs 58. After the detection is completed, the connecting rods 56 can be rotated forward and stored for easy carrying and transportation by the detection personnel. In summary, by rotating the rotating rod 43, the first gear 42 drives the corresponding adjusting dial 41 to rotate, so that the second gear 51 drives the toothed belt 52 to rotate, so that the sliding rod 54 drives the sliding frame 55 to slide, and the sliding frame 55 drives the connecting rod 56 to slide, so that the wedge blocks 57 push the display screen 2 to rotate. At this time, the display screen 2 can be flipped and unfolded following the change and adjustment of the corresponding test tube position, which is convenient for the detection personnel to intuitively record the color state in the test tube.

[0040] like Figure 1 and Figure 8 As shown, it also includes a limiting mechanism 6, which includes a fixing frame 61, a limiting frame 62 and a torsion spring 63. Two left-right symmetrical fixing frames 61 are connected to the upper rear side of the test box 1 by bolts, and two limiting frames 62 are rotatably connected to the fixing frames 61. The limiting frames 62 are used to position the test tubes. The limiting frames 62 are all C-shaped structures and can fit with the edges of the test tubes. Torsion springs 63 are connected between the limiting frames 62 and the adjacent fixing frames 61.

[0041] It should be noted that in order to prevent the test personnel from excessively rotating when changing the test tube position, the test tube position can be positioned by the limit frame 62. As the test personnel control the rotating rod 43 to rotate the first gear 42, the test tube will be driven to rotate, so that the test tube pushes the limit frame 62, and the corresponding torsion spring 63 will be deformed by force. As the test tube completes a position change, under the action of the torsion spring 63, the limit frame 62 will rotate and reset and position the subsequent test tube. It should be particularly noted that when the operator converts the test tube position, the test tube is restricted by the limit frame 62 and can feel obvious resistance during the conversion process. As the test tube completes a position change, the test tube will be limited by the limit frame 62 again, that is, when the test personnel feel the second resistance when changing the test tube position, the conversion of the test tube position is completed. In summary, the position of the test tube is limited by the cooperation between the limit frame 62 and the torsion spring 63, so that the test personnel can feel obvious resistance when changing the test tube position, which is convenient for the test tube conversion and positioning, and avoids excessive test tube position conversion.

[0042] like Figure 1 , Fig. 9 and Fig.10 As shown, it also includes a connecting mechanism 7, which includes a fixed plate 71, a rotating plate 72, a handle 73, a fixed block 74 and a lever 75. The fixed plate 71 is connected to the rear side of the test box 1 by bolts, and the rotating plates 72 are rotatably connected to the front sides of the left and right parts of the fixed plate 71. The rotating plates 72 are connected to adjacent display screens 2. A handle 73 is connected between the rear sides of the rotating plates 72. Two upper and lower symmetrical fixed blocks 74 are connected to the fixed plate 71. The front sides of the fixed blocks 74 are rotatably connected to upper and lower levers 75. The lever 75 is used to limit the display screen 2.

[0043] It should be noted that, after the test is completed, in order to facilitate the test personnel to carry the device, the display screen 2 can be flipped forward to close the test box 1. At this time, the lever 75 can support the frontmost display screen 2 to prevent the display screen 2 from flipping and colliding with the components inside the test box 1, causing damage to the surface of the display screen 2. The device can then be carried and held by the handle 73. It should be particularly noted that during the test process, in order to prevent the display screen 2 from being blocked by the lever 75 and unable to rotate, it is necessary to rotate the lever 75 90 degrees so that the display screen 2 is no longer subject to the limit lock. In summary, the display screen 2 is limited and fixed by the lever 75 to prevent the display screen 2 from colliding with internal components and being damaged during the closing process of the test box 1. After the closing is completed, the device can be carried and held by the handle 73.

[0044] like Figure 1 and Fig.11As shown, it also includes a fixing mechanism 8, which includes a fixing seat 81 and a locking plate 82. The front sides of the left and right parts of the test box 1 are both connected to the fixing seats 81 by bolts, and the locking plate 82 is rotatably connected between the front parts of the fixing seats 81. The locking plate 82 is used to lock the display screen 2.

[0045] It should be noted that, when the test box 1 is closed after the test is completed, in order to prevent the display screen 2 from accidentally flipping open during carrying, the display screen 2 can be limited and locked by the locking plate 82 to improve the stability of the display screen 2. When the display screen 2 is flipped forward and closed, the locking plate 82 is flipped upward so that the locking plate 82 and the display screen 2 are locked. In summary, the display screen 2 is limited and locked by the locking plate 82 to prevent the display screen 2 from accidentally flipping open and causing damage during the process of carrying and transporting the device.

[0046] like Figure 1 , Fig.12 and Fig.13 As shown, an anti-collision mechanism 9 is also included, and the anti-collision mechanism 9 includes a damper 91, a support plate 92 and a telescopic spring 93. Six dampers 91 are connected to the upper part of the test box 1. The dampers 91 are used for buffering. The dampers 91 are slidably connected to the support plates 92. The support plates 92 are used to support the display screen 2. Telescopic springs 93 are connected between the support plates 92 and adjacent dampers 91.

[0047] It should be noted that in order to further protect the display screen 2 and prevent the surface of the display screen 2 from being shattered by collision, the display screen 2 is supported by a support plate 92. During the support process, the damper 91 and the telescopic spring 93 cooperate with each other to provide buffering protection for the display screen 2 and prevent the display screen 2 from being damaged.

[0048] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A fluorescence spectrum comparison device for precious wood and different test agents, comprising a test box (1), a display screen (2) and a tester (3), wherein the rear of the test box (1) is rotatably connected to a plurality of display screens (2) for displaying the color of the reagents and which are symmetrically distributed on the left and right sides, and the front side of the bottom of the test box (1) is connected to the tester (3) for testing the wood, wherein: It also includes a conversion mechanism (4) and a flipping mechanism (5), wherein the test box (1) is provided with a conversion mechanism (4) for quickly adjusting and converting the test tubes to be tested, and the test box (1) is provided with a flipping mechanism (5) for matching and changing the display screen (2) with the corresponding test tubes in real time; The conversion mechanism (4) comprises an adjusting turntable (41), a first gear (42), a rotating rod (43), a placing turntable (44) and a limiting bin (45); two adjusting turntables (41) for converting the positions of test tubes are rotatably connected inside the test box (1); two first gears (42) that can mesh with adjacent adjusting turntables (41) are rotatably connected inside the front of the test box (1); the top of each of the first gears (42) is connected to a rotating rod (43) for easy rotation by a tester; the lower part of each of the adjusting turntables (41) is connected to a placing turntable (44) for placing the test tube; and the placing turntable (44) is connected to five limiting bins (45) for limiting the placement of the test tube; The flip mechanism (5) comprises a second gear (51), a toothed belt (52), a limit block (53), a sliding rod (54), a sliding frame (55), a connecting rod (56), a wedge block (57) and a spiral spring (58); the bottom of the adjusting turntable (41) is connected to the second gear (51); the left part of the test box (1) is slidably connected to a front-to-back symmetrical sliding rod (54); the right side of the sliding rod (54) is connected to a toothed belt (52) capable of meshing with an adjacent second gear (51); and the inside of the test box (1) is connected to a plurality of left-right symmetrically distributed toothed belts (52) for meshing with adjacent second gears (51). ) is provided with a limit block (53) for guiding, the left and right sides of the test box (1) are slidably connected with sliding frames (55), the sliding frames (55) are connected to adjacent sliding rods (54), the sides of the sliding frames (55) away from each other are rotatably connected with four connecting rods (56) for pushing the display screen (2), the upper parts of the connecting rods (56) are rotatably connected with wedge blocks (57) capable of contacting the display screen (2), and the wedge blocks (57) and adjacent connecting rods (56) are connected with volute springs (58), and the volute springs (58) are wound around adjacent wedge blocks (57).

2. The fluorescence spectrum comparison device of precious wood and different test agents according to claim 1, characterized in that: The test box (1) further comprises a limiting mechanism (6), the limiting mechanism (6) comprising a fixing frame (61), a limiting frame (62) and a torsion spring (63). Two fixing frames (61) are connected to the upper rear side of the test box (1) in a left-right symmetrical manner. The fixing frames (61) are rotatably connected to two limiting frames (62) for positioning the test tubes. The limiting frames (62) and adjacent fixing frames (61) are connected to torsion springs (63). The torsion springs (63) are wound around adjacent limiting frames (62).

3. The fluorescence spectrum comparison device of precious wood and different test agents according to claim 2, characterized in that: The test box (1) further comprises a connecting mechanism (7), the connecting mechanism (7) comprising a fixed plate (71), a rotating plate (72), a handle (73), a fixed block (74) and a lever (75), the fixed plate (71) being connected to the rear side thereof, the rotating plates (72) being rotatably connected to the front sides of the left and right parts of the fixed plate (71), the rotating plates (72) being connected to adjacent display screens (2), the rear sides of the rotating plates (72) being connected with a handle (73) for easy holding by an operator, the fixed plate (71) being connected with two fixed blocks (74) symmetrically arranged in an upper and lower direction, the front sides of the fixed blocks (74) being rotatably connected with two levers (75) for limiting the position of the display screen (2) in an upper and lower direction.

4. The fluorescence spectrum comparison device of precious wood and different test agents according to claim 3 is characterized by: The test box (1) further comprises a fixing mechanism (8), the fixing mechanism (8) comprising a fixing seat (81) and a locking plate (82), the front sides of the left and right parts of the test box (1) are both connected to the fixing seat (81), and the locking plate (82) for locking the display screen (2) is rotatably connected between the front parts of the fixing seat (81).

5. The fluorescence spectrum comparison device of precious wood and different test agents according to claim 4 is characterized by: The test box (1) further comprises an anti-collision mechanism (9), the anti-collision mechanism (9) comprising a damper (91), a support plate (92) and a telescopic spring (93); a plurality of dampers (91) for buffering are connected to the upper part of the test box (1); the dampers (91) are all slidably connected to support plates (92) for supporting the display screen (2); telescopic springs (93) are connected between the support plates (92) and adjacent dampers (91); and the telescopic springs (93) are all wound around adjacent dampers (91).

6. The fluorescence spectrum comparison device of precious wood and different test agents according to claim 1, characterized in that: The rotating rod (43) is provided with a rotating handle.

7. The fluorescence spectrum comparison device of precious wood and different test agents according to claim 1 is characterized by: The wedge-shaped blocks (57) are all L-shaped structures.

8. The fluorescence spectrum comparison device of precious wood and different test agents according to claim 2 is characterized by: The limiting frames (62) are all C-shaped structures.

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