Annular illuminating lamp source of spectrophotometer

Abstract

The invention discloses an annular illuminating lamp source of a spectrophotometer, and particularly relates to the technical field of spectrophotometers, the annular illuminating lamp source comprises a main body shell, a center bracket is fixedly connected to the inner wall of the main body shell, and a plurality of moving mechanisms are arranged on the inner wall of the main body shell in an arc array distribution mode; a plurality of positioning mechanisms are arranged on the top of the moving mechanism in an arc-shaped array, and a plurality of pushing mechanisms are arranged on the inner wall of the main body shell in an arc-shaped array. According to the annular illuminating lamp source of the spectrophotometer, the mounting shell and the sliding plate are arranged, so that the distances between the plurality of lamp bead bodies and a sample can be independently adjusted, and therefore, for samples with irregular shapes, the distance between each lamp bead body and the sample can be independently adjusted, and the accuracy of the samples is improved. And the illumination angle can be optimized according to the specific shape and characteristics of the sample, so that each area can be properly irradiated, shadows and light spots are reduced, and the accuracy of a measurement result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of spectrophotometers, and in particular to a ring-shaped lighting source for a spectrophotometer. Background Art

[0002] The ring lighting source of a spectrophotometer plays a vital role in color measurement. It ensures that the spectrophotometer can provide highly accurate and consistent color measurement results. Ring lighting can reduce the impact of light deflection angle on measurement results, thereby reducing measurement deviations caused by different illumination angles.

[0003] In actual applications, the surfaces of many measurement objects are not completely flat or regular. If the sample has an irregular shape, such as protrusions, depressions, or complex surface features, the uniformity of the light source may be affected. Some parts may be illuminated more strongly by the light source, while other parts may be illuminated less strongly, thus affecting the accuracy of the measurement results. Summary of the Invention

[0004] The object of the present invention is to provide a ring-shaped lighting source for a spectrophotometer to solve the problems raised in the above-mentioned background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a ring-shaped lighting source for a spectrophotometer, comprising a main body shell, a central bracket fixedly connected to the inner wall of the main body shell, a plurality of movable mechanisms distributed in an arc array on the inner wall of the main body shell, a plurality of positioning mechanisms distributed in an arc array on the top of the movable mechanisms, a plurality of pushing mechanisms distributed in an arc array on the inner wall of the main body shell, the movable mechanism comprising a mounting shell fixedly connected to the inner wall of the main body shell, a slide slidably connected to the inner wall of the mounting shell, a vertical plate symmetrically fixedly connected to the top of the slide, cylinders symmetrically distributed and fixedly connected to the inner walls of the two vertical plates, and a lamp bead body movably mounted on the outer walls of the two cylinders.

[0006] Preferably, the moving mechanism also includes two sliders that are symmetrically distributed and are both slidably connected to the inner wall of the skateboard, the inner wall of the skateboard is symmetrically slidably connected with a slide rod, the outer walls of the two slide rods are respectively fixedly connected to the outer walls of the two sliders, the outer walls of the two slide rods are each sleeved with a sleeve rod, the outer walls of the two sleeve rods are both fixedly connected with a spring 1, the two spring 1s are respectively sleeved on the outer walls of the two slide rods, the outer walls of the two spring 1s are both fixedly connected to the outer wall of the skateboard, the outer walls of the two sleeve rods are both fixedly connected with a gear, the inner wall of the skateboard is symmetrically fixedly connected with a rack, and the outer walls of the gear on the same side are meshed with the outer wall of the rack.

[0007] Preferably, the moving mechanism further comprises a pointer 1 fixedly connected to the top of the slide, a transparent shell is fixedly connected to the top of the mounting shell, and a plurality of distance scale lines are fixedly connected to the inner wall of the transparent shell.

[0008] Preferably, the pushing mechanism includes a sliding shell fixedly connected and passing through the outer wall of the main shell, a push rod is slidably connected to the inner wall of the sliding shell, an arc plate is fixedly connected to the outer wall of the push rod, the bottom and top of the arc plate are both slidably connected to the inner wall of the main shell, and several connecting plates are fixedly connected in an arc-shaped array on the outer wall of the arc plate, and four anti-slip rubber blocks are fixedly connected to the inner walls of the several connecting plates.

[0009] Preferably, the pushing mechanism also includes sliding bars that are symmetrically distributed and fixed on the outer walls of the two sliders, the tops of the two sliding bars are fixedly connected with spherical blocks, the inner walls of the connecting plates are symmetrically provided with sliding grooves, the outer walls of the sliding bars on the same side are slidingly connected to the inner walls of the sliding grooves, the inner walls of the two sliding grooves are provided with mounting grooves, the inner walls of the two mounting grooves are fixedly connected with spring 2, and the outer walls of the two springs are fixedly connected with spherical rods.

[0010] Preferably, the pushing mechanism also includes a raised pressure plate slidably connected to the inner wall of the sliding shell, and the four corners of the top of the raised pressure plate are fixedly connected to springs three, and the four springs three are fixedly connected to the inner wall of the sliding shell, an extrusion rod is rotatably connected to the inner wall of the sliding shell, and a bend rod is fixedly connected to the outer wall of the extrusion rod.

[0011] Preferably, the positioning mechanism includes symmetrically distributed extrusion disks that are threadedly connected to the outer walls of the two cylinders, and a plurality of extension rods are fixedly connected to the outer walls of the two extrusion disks.

[0012] Preferably, the positioning mechanism also includes a turntable fixedly connected to the outer wall of the lamp bead body, a second pointer is fixedly connected to the outer wall of the turntable, an angle disk is rotatably connected to the outer wall of the turntable, and the bottom of the angle disk is fixedly connected to the top of the slide.

[0013] Preferably, the positioning mechanism further comprises a circular ring shell fixedly connected to the outer wall of the angle disk, and a magnifying lens is fixedly connected to the inner wall of the circular ring shell.

[0014] Preferably, the values ​​of the plurality of distance scale lines all increase in sequence from small to large as they get closer to the center bracket.

[0015] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art: 1. The mounting shell and slide plate provided in the present invention enable the distances between several lamp bead bodies and samples to be adjusted individually. In this way, for samples with irregular shapes, by individually adjusting the distance between each lamp bead body and the sample, the illumination angle can be optimized according to the specific shape and characteristics of the sample, thereby ensuring that each area can be properly illuminated, reducing shadows and light spots, and improving the accuracy of the measurement results; the gears and racks provided enable the two sliders to slide and fit together when the slide plate is moved back and forth, so that the gears and racks on the same side are disengaged, and do not hinder the movement of the slide plate. After the distance between the lamp bead body and the sample is adjusted to a suitable distance, the two sliders are released, and under the reaction force of the two springs, the two gears are respectively moved toward the two racks on the same side, so that the gears and racks on the same side are re-engaged together, playing a blocking role, so that the slide plate cannot be easily moved back and forth, thereby ensuring that in the process of the present invention cooperating with the light colorimeter to complete the sample color measurement, the lamp bead body after the position is adjusted will not slide arbitrarily, affecting the normal progress of the sample color measurement. 2. The spring 1 provided in the present invention can not only use its reaction force to move the two gears toward the two racks on the same side after releasing the two sliders, helping the gears on the same side to re-engage with the racks, but also when the reaction force of the spring 1 drives the gear to move toward the rack, if the teeth of the gear and the teeth of the rack are not exactly meshed but collide, the reaction force of the spring 1 drives the gear to continue to move toward the rack, prompting the gear to drive the sleeve rod to rotate together, thereby causing the gear to rotate a certain angle so that the gear and the rack can mesh. At this time, the spring 1 is in a deformed state. In this way, when the slide plate moves to any position and wants to use the two gears and two racks to stabilize the position of the slide plate, the gears and racks on the same side are meshed, thereby blocking the forward and backward movement of the slide plate. In this way, the flexibility of adjusting the distance between the lamp bead body and the sample can be improved to ensure the best lighting conditions, thereby improving the accuracy of color measurement by the spectrophotometer.

[0016] 3. The push rod, curved plate and connecting plate provided in the present invention enable the device to not only adjust the distance between each lamp bead body and the sample individually, but also adjust the distance between multiple lamp bead bodies and the sample at one time, thus saving time and avoiding the tedious process of adjusting the lamp bead bodies one by one. This method greatly improves work efficiency when using a light colorimeter to complete the sample color measurement process.

[0017] 4. The cylinder and extrusion disk provided in the present invention allow the lamp bead body to rotate and remain stationary after rotation, thereby adjusting the angle at which the lamp bead body illuminates the sample. This makes the device more flexible in meeting the diverse measurement requirements of the spectrophotometer when cooperating with the spectrophotometer to complete sample color measurement, and can provide more accurate and consistent lighting conditions for various types of samples, thereby improving the reliability and accuracy of the measurement. The turntable, pointer 2, and angle dial provided allow the angle dial to be used as a reference when rotating the lamp bead body to adjust the sample illumination angle of the lamp bead body. This ensures accuracy, consistency, and standardization when adjusting the lamp bead body's illumination angle on the sample, thereby improving the measurement accuracy and reliability of the device in conjunction with the spectrophotometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 It is a schematic diagram of the local structure of the present invention; Figure 5 This is an exploded schematic diagram of the mobile mechanism structure of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure at A in the middle; Figure 7 It is a schematic cross-sectional view of a local structure of the moving mechanism of the present invention; Figure 8 It is a schematic cross-sectional view of a local structure of the present invention; Figure 9 It is a schematic diagram of the explosion of the local structure of the present invention; Figure 10 It is a schematic diagram of the partial structure of the pushing mechanism of the present invention; Figure 11 For the present invention Figure 10 Schematic diagram of the structure at B in the middle; Figure 12 It is a schematic cross-sectional view of a local structure of the present invention; Figure 13 It is a schematic diagram of the local structure of the present invention; Figure 14 It is a schematic cross-sectional view of a local structure of the pushing mechanism of the present invention; Figure 15 It is a schematic cross-sectional view of a local structure of the pushing mechanism of the present invention; Figure 16 It is a schematic diagram of the local structure of the present invention; Figure 17This is an exploded schematic diagram of the positioning mechanism structure of the present invention; Figure 18 It is a partial structural explosion diagram of the present invention.

[0019] Figure: 1, main body shell; 2, center bracket; 3, moving mechanism; 31, mounting shell; 32, slide plate; 33, vertical plate; 34, cylinder; 35, lamp body; 36, slider; 37, slide bar; 38, spring 1; 39, sleeve rod; 310, gear; 311, rack; 312, pointer 1; 313, transparent shell; 314, distance scale line; 4, positioning mechanism; 41, squeeze plate; 42, extension rod; 43, rotating Plate; 44. Pointer 2; 45. Angle plate; 46. Ring housing; 47. Magnifying lens; 5. Push mechanism; 51. Push rod; 52. Sliding housing; 53. Arc plate; 54. Connecting plate; 55. Anti-slip rubber block; 56. Slide groove; 57. Slide bar; 58. Spherical block; 59. Mounting slot; 510. Spring 2; 511. Spherical rod; 512. Raised pressure plate; 513. Spring 3; 514. Extrusion rod; 515. Prying rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Example 1, as Figure 1-Figure 4 As shown, a ring-shaped lighting source for a spectrophotometer includes a main housing 1, a central bracket 2 is fixedly connected to the inner wall of the main housing 1, a plurality of moving mechanisms 3 are distributed in an arc array on the inner wall of the main housing 1, a plurality of positioning mechanisms 4 are distributed in an arc array on the top of the moving mechanisms 3, and a plurality of pushing mechanisms 5 are distributed in an arc array on the inner wall of the main housing 1. The moving mechanism 3 includes a mounting housing 31 fixedly connected to the inner wall of the main housing 1, a slide 32 is slidably connected to the inner wall of the mounting housing 31, a vertical plate 33 is symmetrically fixedly connected to the top of the slide 32, and a cylinder 34 is symmetrically distributed and fixedly connected to the inner walls of the two vertical plates 33. A lamp bead body 35 is movably mounted on the outer walls of the two cylinders 34.

[0022] The aforementioned several lamp bead bodies 35 are all composed of a housing, LED lamp beads, a power supply and driver module, and a heat dissipation system. They have a dimming function that can adjust the brightness of the light source and are equipped with multiple light source modes. This is a mature technical means in the prior art. This solution only borrows its circular arrangement design to ensure that light is evenly irradiated on the surface of the sample to be measured, avoiding chromatic aberration errors caused by uneven illumination, and ensuring that the spectrophotometer can perform accurate color measurement under different conditions. Its structure and working principle will not be further elaborated. In a specific implementation of the present invention, the device is placed in a position where the sample needs to be illuminated in conjunction with the spectrophotometer to complete the sample color measurement. The sample is placed in the middle position of the central bracket 2. At this time, the plurality of slides 32 are fixed in a corresponding manner in the plurality of push mechanisms 5. The plurality of lamp bead bodies 35 are all turned on to illuminate the sample, thereby cooperating with the spectrophotometer to complete the sample color measurement. When the sample is irregular in shape and the light irradiated on the sample is uneven, resulting in light spots or shadows on the sample, the corresponding lamp bead body 35 whose distance from the sample needs to be adjusted is removed from the pushing mechanism 5, and the slide 32 is slid back and forth to change the distance between the lamp bead body 35 and the sample. In the present invention, the distances between several lamp bead bodies 35 and the sample can be adjusted individually. In this way, for irregularly shaped samples, by individually adjusting the distance between each lamp bead body 35 and the sample, the lighting angle can be optimized according to the specific shape and characteristics of the sample, thereby ensuring that each area can be properly illuminated, reducing shadows and light spots, and improving the accuracy of the measurement results.

[0023] Example 2, as Figure 5-Figure 15 As shown, the moving mechanism 3 also includes two sliders 36 that are symmetrically distributed and are both slidably connected to the inner wall of the slide plate 32. The inner wall of the slide plate 32 is symmetrically slidably connected with a slide rod 37. The outer walls of the two slide rods 37 are respectively fixedly connected to the outer walls of the two sliders 36. The outer walls of the two slide rods 37 are each sleeved with a sleeve rod 39. The outer walls of the two sleeve rods 39 are each fixedly connected to a spring 1 38. The two springs 1 38 are respectively sleeved on the outer walls of the two slide rods 37. The outer walls of the two springs 1 38 are both fixedly connected to the outer wall of the slide plate 32. The outer walls of the two sleeve rods 39 are each fixedly connected to a gear 310. The inner wall of the slide plate 32 is symmetrically fixedly connected with a rack 311. The outer walls of the gear 310 on the same side are meshed with the outer walls of the rack 311. The moving mechanism 3 further includes a pointer 312 fixedly connected to the top of the slide 32, a transparent housing 313 fixedly connected to the top of the mounting housing 31, and a plurality of distance scale lines 314 fixedly connected to the inner wall of the transparent housing 313; The pushing mechanism 5 includes a sliding housing 52 fixedly connected to and extending through the outer wall of the main housing 1. A push rod 51 is slidably connected to the inner wall of the sliding housing 52. An arc-shaped plate 53 is fixedly connected to the outer wall of the push rod 51. The bottom and top of the arc-shaped plate 53 are both slidably connected to the inner wall of the main housing 1. A plurality of connecting plates 54 are fixedly connected to the outer wall of the arc-shaped plate 53 in an arc-shaped array. Four anti-slip rubber blocks 55 are fixedly connected to the inner walls of each of the connecting plates 54. The pushing mechanism 5 also includes sliding bars 57 symmetrically distributed and fixed to the outer walls of the two sliders 36. The tops of the two sliding bars 57 are fixedly connected to spherical blocks 58. The inner wall of the connecting plate 54 is symmetrically provided with sliding grooves 56. The outer walls of the sliding bars 57 on the same side are slidably connected to the inner walls of the sliding grooves 56. The inner walls of the two sliding grooves 56 are provided with mounting grooves 59. The inner walls of the two mounting grooves 59 are fixedly connected to springs 510. The outer walls of the two springs 510 are fixedly connected to spherical rods 511. The pushing mechanism 5 also includes a raised pressure plate 512 slidably connected to the inner wall of the sliding housing 52. The four corners of the top of the raised pressure plate 512 are fixedly connected to springs 513. The four springs 513 are all fixedly connected to the inner wall of the sliding housing 52. The inner wall of the sliding housing 52 is rotatably connected to an extrusion rod 514. The outer wall of the extrusion rod 514 is fixedly connected to a bending rod 515. The values ​​of the distance scale lines 314 all increase in sequence from small to large as they get closer to the center bracket 2 .

[0024] In a specific implementation of the present invention, when it is necessary to move the slide plate 32 back and forth to adjust the distance between the lamp bead body 35 and the sample placed on the central bracket 2, the two sliders 36 are pinched so that the two sliders 36 slide together, thereby driving the two slide bars 37 to move in the direction away from the two racks 311 on the same side. During the movement of the two slide bars 37, the two sleeve rods 39 are respectively driven to move in the direction away from the two racks 311 on the same side, thereby driving the two gears 310 to move in the direction away from the two racks 311 on the same side. In this way, the gears 310 and racks 311 on the same side are disengaged, and the process of moving the slide plate 32 back and forth is not hindered. At this time, the two springs 1 38 are both in a compressed state. After the distance between the lamp bead body 35 and the sample is adjusted to a suitable distance, the two sliders 36 are released. Under the reaction force of the two springs 1 38, the two sleeve rods 39 are respectively driven to move in the direction of the rack 311 on the same side, thereby respectively driving the two gears 310 to move in the direction of the rack 311 on the same side, thereby respectively driving the two slide rods 37 to move in the direction of the rack 311 on the same side, so that the gears 310 and the rack 311 on the same side are re-engaged. Since the two gears 310 are respectively fixed on the two sleeve rods 39, when the gears 310 and the rack 311 on the same side are re-engaged, when the slide plate 32 is moved back and forth at this time, the slide plate 32 cannot be easily moved back and forth due to the blocking effect of the two gears 310, thereby ensuring that the lamp bead body 35 after the position is adjusted will not slide arbitrarily during the process of completing the sample color measurement with the light colorimeter of the present invention, thereby affecting the normal progress of the sample color measurement. When the reaction force of spring 1 38 drives gear 310 to move toward rack 311, if the teeth of gear 310 and rack 311 do not mesh exactly but collide, the reaction force of spring 1 38 drives gear 310 to continue to move toward rack 311, prompting gear 310 to drive sleeve rod 39 to rotate together, thereby causing gear 310 to rotate a certain angle so that gear 310 and rack 311 can mesh. At this time, spring 1 38 is in a deformed state. In this way, when slide 32 moves to any position and wants to use the two gears 310 and the two racks 311 to stabilize the position of slide 32, the gear 310 and rack 311 on the same side are both meshed, thereby blocking the forward and backward movement of slide 32. In this way, the flexibility of adjusting the distance between lamp bead body 35 and sample can be improved to ensure the best lighting conditions, thereby improving the accuracy of color measurement of spectrophotometer. Pinch the two sliders 36 so that the two sliders 36 slide together, and slide the slide plate 32 toward the connecting plate 54 so that the two sliders 36 are both inserted into the connecting plate 54. In this way, the slide plate 32 and the connecting plate 54 can be assembled together. According to the above operation, several slide plates 32 and several connecting plates 54 are assembled together one by one. Several anti-slip rubber blocks 55 can increase the friction force and increase the stability of the two sliders 36 inserted into the connecting plate 54, thereby ensuring the stability of the slide plate 32 assembled with the connecting plate 54. When both sliders 36 are inserted into the connecting plate 54, the two slide bars 57 are respectively inserted into the two slide grooves 56. At this time, the two sliders 36 are continuously slid toward the connecting plate 54, which will drive the two slide bars 57 to slide in the two slide grooves 56 respectively. When the two slide bars 57 slide in the two slide grooves 56 until the two spherical blocks 58 are in contact with the two spherical rods 511 respectively, the two sliders 36 are continuously slid toward the connecting plate 54, and the two spherical blocks 58 will squeeze the two spherical rods 511 respectively, causing the two spherical rods 511 to move toward the two mounting holes respectively. When the two slide bars 57 are completely slid into the two slide grooves 56, the spherical blocks 58 on the same side no longer squeeze the spherical rods 511. Under the reaction force of the two springs 510, the two spherical rods 511 slide downward to return to their initial positions, thereby blocking the two spherical blocks 58. This prevents the two sliders 36 inserted into the connecting plate 54 from moving out of the connecting plate 54 easily, further increasing the stability of the two sliders 36 inserted into the connecting plate 54. After the slide plate 32 is inserted into the connecting plate 54 and both sliders 36 are completely removed from the connecting plate 54, moving the slide plate 32 back and forth will drive the pointer 1 312 to move back and forth. At this time, referring to the several distance scale lines 314, a clear and intuitive reference can be made to the distance moved back and forth by the slide plate 32, which helps to accurately adjust the distance between the several lamp bead bodies 35 and the sample, improve the accuracy, consistency and efficiency of the operation, and ensure reliable color measurement results. When the plurality of sliders 36 are correspondingly engaged with the plurality of connecting plates 54, thereby connecting the plurality of slide plates 32 and the plurality of connecting plates 54 one by one, the bend rod 515 is bent upward to drive the extrusion rod 514 to rotate, so that the extrusion rod 514 no longer presses the protruding pressure plate 512 downward. Under the reaction force of the four springs 513, the protruding pressure plate 512 slides upward and no longer presses the push rod 51. At this time, the push rod 51 can move back and forth smoothly, and the push rod 51 is slid back and forth to drive the curved plate 53 to move back and forth, thereby driving the plurality of connecting plates 54 to move back and forth, thereby driving the plurality of slide plates 32 to move back and forth, and adjusting the distance between the plurality of lamp bead bodies 35 and the samples at one time. This can save time and avoid the tedious process of adjusting the lamp bead bodies 35 one by one. This method greatly improves the work efficiency in the process of completing the sample color measurement using a light colorimeter. Since the two sliders 36 need to fit together before they can be inserted into the connecting plate 54, after the two sliders 36 are inserted into the connecting plate 54, the gear 310 and the rack 311 on the same side are both out of mesh, which will not hinder the forward and backward movement of multiple lamp bead bodies 35 at one time. After pushing the push rod 51 back and forth to adjust the several lamp bead bodies 35 to the appropriate position, turn the bend rod 515 downward to drive the squeezing rod 514 to rotate, and squeeze the raised pressure plate 512 again, so that the raised pressure plate 512 moves downward, pressing the push rod 51 tightly, so that the push rod 51 cannot move forward and backward at will, and prevents the several slides 32 from moving at will after the position is uniformly changed. At this time, the four springs 513 are all in a stretched state.

[0025] Example 3, as Figure 16-Figure 18 As shown, the positioning mechanism 4 includes symmetrically distributed extrusion discs 41 respectively connected to the outer walls of the two cylinders 34 by threads, and the outer walls of the two extrusion discs 41 are fixedly connected to a plurality of extension rods 42; The positioning mechanism 4 also includes a turntable 43 fixedly connected to the outer wall of the lamp bead body 35, a pointer 2 44 is fixedly connected to the outer wall of the turntable 43, an angle plate 45 is rotatably connected to the outer wall of the turntable 43, and the bottom of the angle plate 45 is fixedly connected to the top of the slide 32; The positioning mechanism 4 further includes a circular housing 46 fixedly connected to the outer wall of the angle plate 45 , and a magnifying lens 47 fixedly connected to the inner wall of the circular housing 46 .

[0026] In a specific implementation of the present invention, the lamp bead body 35 is fitted together with the cylinder 34 on one side, and the extension rod 42 is rotated to rotate and continuously move toward the lamp bead body 35 until the lamp bead body 35 is squeezed and clamped together with the cylinder 34 so that the lamp bead body 35 cannot rotate freely. According to the above operation, the squeeze plate 41 and the cylinder 34 on the other side are used to clamp the lamp bead body 35 to prevent the lamp bead body 35 from rotating. When the illumination angle of the lamp bead body 35 on the sample needs to be adjusted, the extension rod 42 is rotated to drive the extrusion plate 41 to rotate away from the lamp bead body 35, so that the lamp bead body 35 is no longer squeezed and can rotate. According to the above operation, the squeezing plate 41 on the other side also no longer squeezes the lamp bead body 35; At this time, by rotating the lamp body 35, the angle at which the lamp body 35 illuminates the sample can be adjusted. This makes the device more flexible in meeting the diverse measurement requirements of the spectrophotometer when used in conjunction with the spectrophotometer to measure the sample color. It can provide more precise and consistent lighting conditions for various types of samples, thereby improving the reliability and accuracy of the measurement. After adjusting the irradiation angle of the lamp bead body 35 to the sample to a suitable angle, keep the angle of the lamp bead body 35 fixed, rotate the extension rod 42 to rotate the extrusion plate 41, and use the two extrusion plates 41 and the cylinder 34 on the same side to fix the lamp bead body 35 after the changed angle to prevent the lamp bead body 35 from changing arbitrarily after the irradiation angle is changed; The rotation of the lamp body 35 drives the turntable 43 to rotate, thereby driving the second pointer 44 to rotate. Using the several scale lines indicating the angle on the angle disk 45 as a reference, the accuracy, consistency and standardization can be ensured when adjusting the illumination angle of the lamp body 35 on the sample, thereby improving the measurement accuracy and reliability of the device in conjunction with the spectrophotometer. During the rotation of the lamp bead body 35, the rotation angle of the lamp bead body 35 is judged by observing the change in the angle of the pointer 2 44 on the angle disk 45. This is observed through the magnifying lens 47. The magnifying lens 47 can effectively magnify the details of the pointer 2 44 and several angle scale lines on the angle disk 45, making the process of observing the angle change of the lamp bead body 35 clearer.

[0027] The working principle of the present invention is as follows: the device is placed in a position where the sample needs to be illuminated in conjunction with the spectrophotometer to complete the sample color measurement, the sample is placed in the middle position of the central bracket 2, the sample is illuminated, and the spectrophotometer is used to complete the sample color measurement; When the sample is irregular in shape and the light irradiating the sample is uneven, resulting in light spots or shadows on the sample, pinch the two sliders 36 and slide them together to disengage the gear 310 and the rack 311 on the same side. Move the slide 32 back and forth to adjust the distance between the lamp bead body 35 and the sample placed on the center bracket 2, so that the light irradiated on the sample by several lamp bead bodies 35 is uniform. After the distance between the lamp bead body 35 and the sample is adjusted to a suitable distance, the two sliders 36 are loosened so that the gear 310 and the rack 311 on the same side are engaged, so that the lamp bead body 35 after the adjusted position does not slide randomly; When the slide 32 is moved back and forth, the pointer 1 312 is driven to move back and forth. At this time, referring to the several distance scale lines 314, a clear and intuitive reference can be made to the distance moved back and forth by the slide 32, which helps to accurately adjust the distance between the lamp bead body 35 and the sample. Pinch the two sliders 36 so that the two sliders 36 slide together so that the two sliders 36 are both stuck in the connecting plates 54. After the sliders 36 are stuck in the connecting plates 54 one by one, the sliders 32 are connected to the connecting plates 54 one by one. Then, the bend rod 515 is bent upward to drive the extrusion rod 514 to rotate so that the extrusion rod 514 no longer presses the raised pressure plate 512 downward, so that the raised pressure plate 512 no longer presses the push rod 51. The push rod 51 is slid back and forth to drive the curved plate 53 to move back and forth, thereby driving the connecting plates 54 to move back and forth, thereby driving the sliders 32 to move back and forth, and adjusting the distance between multiple lamp bead bodies 35 and samples at one time. After the push rod 51 is pushed forward and backward to adjust the plurality of lamp bead bodies 35 to the appropriate position, the bend lever 515 is rotated downward to drive the squeezing lever 514 to rotate, and the raised pressure plate 512 is squeezed again, so that the raised pressure plate 512 moves downward and presses the push rod 51 tightly, so that the push rod 51 cannot move forward and backward at will; When it is necessary to adjust the irradiation angle of the lamp bead body 35 to the sample, the extension rod 42 is rotated so that the two squeezing disks 41 rotate and move away from the lamp bead body 35, and no longer squeeze the lamp bead body 35, so that the lamp bead body 35 can rotate. The lamp bead body 35 is rotated to adjust the angle at which the lamp bead body 35 irradiates the sample. During the angle adjustment process, the rotation of the lamp bead body 35 drives the turntable 43 to rotate, thereby driving the second pointer 44 to rotate. The several scale lines indicating the angles on the angle disk 45 are used as references, and the angle of rotation of the lamp bead body 35 can be intuitively observed. After adjusting the irradiation angle of the lamp bead body 35 to the sample to a suitable angle, keep the angle of the lamp bead body 35 unchanged, rotate the extension rod 42 to rotate the extrusion plate 41, and use the two extrusion plates 41 and the cylinder 34 on the same side to re-fix the lamp bead body 35 after the changed angle to prevent the lamp bead body 35 from changing arbitrarily after the irradiation angle is changed.

[0028] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A ring-shaped lighting source for a spectrophotometer, comprising a main housing (1), characterized in that: The inner wall of the main shell (1) is fixedly connected to a central bracket (2), the inner wall of the main shell (1) is provided with a plurality of moving mechanisms (3) distributed in an arc array, the top of the moving mechanism (3) is provided with a plurality of positioning mechanisms (4) distributed in an arc array, the inner wall of the main shell (1) is provided with a plurality of pushing mechanisms (5) distributed in an arc array, the moving mechanism (3) comprises a mounting shell (31) fixedly connected to the inner wall of the main shell (1), a slide plate (32) is slidably connected to the inner wall of the mounting shell (31), a vertical plate (33) is symmetrically fixedly connected to the top of the slide plate (32), the inner walls of the two vertical plates (33) are symmetrically distributed and fixedly connected to cylinders (34), and the outer walls of the two cylinders (34) are movably mounted with a lamp bead body (35) together.

2. The ring-shaped illumination light source for a spectrophotometer according to claim 1, wherein: The moving mechanism (3) further comprises two sliders (36) symmetrically distributed and slidably connected to the inner wall of the slide plate (32), the inner wall of the slide plate (32) is symmetrically slidably connected to a slide bar (37), the outer walls of the two slide bars (37) are respectively fixedly connected to the outer walls of the two sliders (36), the outer walls of the two slide bars (37) are each sleeved with a sleeve bar (39), the outer walls of the two sleeve bars (39) are each fixedly connected to a spring 1 (38), the two spring 1s (38) are respectively sleeved on the outer walls of the two slide bars (37), the outer walls of the two spring 1s (38) are each fixedly connected to the outer wall of the slide plate (32), the outer walls of the two sleeve bars (39) are each fixedly connected to a gear (310), the inner wall of the slide plate (32) is symmetrically fixedly connected to a rack (311), and the outer walls of the gear (310) and the outer walls of the rack (311) on the same side are meshed and connected.

3. The ring-shaped illumination light source for a spectrophotometer according to claim 2, wherein: The moving mechanism (3) further comprises a pointer (312) fixedly connected to the top of the slide (32); a transparent housing (313) is fixedly connected to the top of the mounting housing (31); and a plurality of distance scale lines (314) are fixedly connected to the inner wall of the transparent housing (313).

4. The ring-shaped illumination light source for a spectrophotometer according to claim 2, wherein: The pushing mechanism (5) comprises a sliding housing (52) fixedly connected to and passing through the outer wall of the main housing (1); a push rod (51) is slidably connected to the inner wall of the sliding housing (52); an arc-shaped plate (53) is fixedly connected to the outer wall of the push rod (51); the bottom and top of the arc-shaped plate (53) are both slidably connected to the inner wall of the main housing (1); a plurality of connecting plates (54) are fixedly connected to the outer wall of the arc-shaped plate (53) in an arc array; four anti-slip rubber blocks (55) are fixedly connected to the inner walls of the plurality of connecting plates (54).

5. The ring-shaped illumination light source for a spectrophotometer according to claim 4, wherein: The pushing mechanism (5) further includes sliding bars (57) symmetrically distributed and fixed on the outer walls of the two sliders (36), the tops of the two sliding bars (57) are fixedly connected with spherical blocks (58), the inner walls of the connecting plate (54) are symmetrically provided with sliding grooves (56), the outer walls of the sliding bars (57) on the same side are slidably connected to the inner walls of the sliding grooves (56), the inner walls of the two sliding grooves (56) are provided with mounting grooves (59), the inner walls of the two mounting grooves (59) are fixedly connected with spring 2 (510), and the outer walls of the two springs 2 (510) are fixedly connected with spherical rods (511).

6. The ring-shaped illumination light source for a spectrophotometer according to claim 4, wherein: The pushing mechanism (5) further comprises a raised pressure plate (512) slidably connected to the inner wall of the sliding housing (52), the four corners of the top of the raised pressure plate (512) are fixedly connected to spring three (513), the four spring threes (513) are fixedly connected to the inner wall of the sliding housing (52), an extrusion rod (514) is rotatably connected to the inner wall of the sliding housing (52), and a bending rod (515) is fixedly connected to the outer wall of the extrusion rod (514).

7. The ring-shaped illumination light source for a spectrophotometer according to claim 1, wherein: The positioning mechanism (4) comprises symmetrically distributed extrusion discs (41) respectively connected to the outer walls of the two cylinders (34) by threads, and the outer walls of the two extrusion discs (41) are fixedly connected to a plurality of extension rods (42).

8. The ring-shaped illumination light source for a spectrophotometer according to claim 7, wherein: The positioning mechanism (4) further comprises a turntable (43) fixedly connected to the outer wall of the lamp bead body (35), a second pointer (44) fixedly connected to the outer wall of the turntable (43), an angle plate (45) rotatably connected to the outer wall of the turntable (43), and a bottom of the angle plate (45) fixedly connected to the top of the slide plate (32).

9. The ring-shaped illumination light source for a spectrophotometer according to claim 8, characterized in that: The positioning mechanism (4) further comprises a circular ring housing (46) fixedly connected to the outer wall of the angle disc (45), and a magnifying lens (47) fixedly connected to the inner wall of the circular ring housing (46).

10. The annular lighting source for a spectrophotometer according to claim 3, characterized in that: The values ​​of the plurality of distance scale lines (314) all increase in sequence from small to large as they approach the center bracket (2).

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