Spectrum detection shading device

Abstract

The utility model discloses a spectrum detection shading device which comprises a mounting ring sleeved on a probe of a spectrograph, a mounting plate is fixedly arranged at the end part, facing the probe, of the mounting ring, a sliding ring is sleeved on the mounting ring, a shading tube is sleeved on the mounting plate in a sliding manner, and the end part of the shading tube is fixedly connected with the sliding ring; an elastic part is arranged between the mounting plate and the sliding ring, a folding shutter is arranged at the end, away from the sliding ring, of the shading pipe and is in a fan shape, one edge of the folding shutter is fixed to the side edge of the shading pipe, the other edge of the folding shutter is a free movable edge, and a driving assembly is arranged in the shading pipe and used for driving the folding shutter. And the spectrograph can be effectively protected during detection.

Description

Technical Field

[0001] This utility model belongs to the field of spectral detection equipment, and in particular relates to a spectral detection light-shielding device. Background Technology

[0002] In the printing industry, spectral imaging can detect color deviations in printed materials, ensuring consistency between printed colors and design drafts and improving color quality. For example, in high-end packaging printing, such as cosmetics and food packaging, extremely high color accuracy is required, and spectral imaging can effectively avoid product quality problems caused by color differences. It can also detect various defects on the surface of printed materials, such as ink spots, scratches, and omissions. To ensure accuracy, reduce interference from external light, improve measurement stability, and avoid stray light effects, necessary light-shielding measures are required during the testing process. While existing portable spectrometers are convenient to use, their probes are unshielded and directly exposed. When measuring the fluorescence spectrum of samples under strong light, without shielding, the strong external light can mask the weak fluorescence signal emitted by the sample itself, leading to inaccurate measurement results. Furthermore, some components of spectral detection instruments may be sensitive to light, and prolonged exposure to strong light may cause performance degradation or damage to these components. Utility Model Content

[0003] The purpose of this invention is to provide a light-shielding device for spectral detection in order to effectively protect the spectrometer during detection.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a spectral detection light-shielding device, characterized in that it includes a mounting ring sleeved on the probe of a spectrometer, a mounting plate fixedly disposed at the end of the mounting ring facing the probe, a sliding ring sleeved on the mounting ring, a light-shielding tube slidably sleeved on the mounting plate, an end of the light-shielding tube being fixedly connected to the sliding ring, an elastic element disposed between the mounting plate and the sliding ring, a folding louver disposed at the end of the light-shielding tube away from the sliding ring, the folding louver being fan-shaped, one edge of the folding louver being fixed to the side of the light-shielding tube, the other edge of the folding louver being a freely movable edge, and a driving component disposed inside the light-shielding tube, the driving component being used to drive the folding louver.

[0005] As a further description of the above technical solution: the elastic element is a spring disposed between the mounting plate and the sliding ring, one end of the spring is fixed on the mounting plate, and the other end of the spring is fixed on the sliding ring.

[0006] As a further description of the above technical solution: a protective rubber ring is provided at the end of the light-shielding tube away from the sliding ring, and the protective rubber ring is made of silicone.

[0007] As a further description of the above technical solution: four folding louvers are provided, and the four folding louvers are arranged in a circular overlapping manner, with each folding louver corresponding to a driving component.

[0008] As a further description of the above technical solution: the driving assembly includes a spiral blade and a driving block. A through hole is provided on the mounting plate, the spiral blade passes through the through hole, and the spiral blade rotates on the end face of the sliding ring. The driving block is fixed on the mounting plate and is adapted to the spiral blade. A connecting rod is fixedly provided at the end of the spiral blade away from the sliding ring, and the connecting rod is connected to the free movable edge of the folding louver.

[0009] As a further description of the above technical solution: the surfaces of the folding louvers and the light-shielding tube are coated with black or frosted.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0011] (1) In this utility model, when the spectrometer is not in use, the folded louvers cover and protect the probe, which can effectively protect it by isolating the light. When in use, pressure needs to be applied to the surface of the object to be measured to make the light-shielding tube move. At the same time, under the linkage of the drive component, the folded louvers will no longer cover the probe.

[0012] (2) This application effectively ensures that when the spectrometer switch is accidentally activated without direct close proximity to the analyte, the spectrometer is not affected by stray light under the protection of the folded louvers. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a front view of the present invention;

[0015] Figure 3 for Figure 2 Sectional view at point AA;

[0016] Figure 4 for Figure 2 Sectional view at point BB in the middle;

[0017] Figure 5 This is a three-dimensional structural diagram of the present invention from another angle, in which the protective rubber ring and the light-shielding tube are in cross-sectional view.

[0018] Legend: 1. Spectrometer; 2. Probe; 3. Mounting ring; 4. Mounting plate; 5. Sliding ring; 6. Light-shielding tube; 7. Spring; 8. Folding louver; 9. Spiral blade; 10. Drive block; 11. Connecting rod; 12. Protective rubber ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 This utility model provides a technical solution for a spectral detection light-shielding device:

[0021] A spectral detection light-shielding device includes a mounting ring 3 fitted onto a probe 2 of a spectrometer 1. The inner ring of the mounting ring 3 has a rubber layer. An interference fit between the mounting ring 3 and the probe 2 ensures stable mounting of the mounting ring 3 onto the probe 2. A mounting plate 4 is fixedly mounted on the end of the mounting ring 3 facing the probe 2. The mounting ring 3 and the mounting plate 4 are integrally formed by 3D printing. A sliding ring 5 is fitted onto the mounting ring 3. Both the mounting ring 3 and the sliding ring 5 have a square outer and circular inner cross-section. A light-shielding tube 6 is slidably fitted onto the mounting plate 4. The end of the light-shielding tube 6 is fixedly connected to the sliding ring 5. In this embodiment, the light-shielding tube 6 and the sliding ring 5 are integrally formed by 3D printing.

[0022] An elastic element is provided between the mounting plate 4 and the sliding ring 5. In this embodiment, the elastic element is a spring 7 provided between the mounting plate 4 and the sliding ring 5. One end of the spring 7 is fixed on the mounting plate 4, and the other end of the spring 7 is fixed on the sliding ring 5.

[0023] A folding louver 8 is provided at one end of the light-shielding tube 6 away from the sliding ring 5. The folding louver 8 is fan-shaped and made of black plastic. One edge of the folding louver 8 is fixed to the side of the light-shielding tube 6. In this embodiment, the fixing method is by adhesive bonding. The other edge of the folding louver 8 is a free-moving edge. A driving component is provided inside the light-shielding tube 6. The driving component is used to drive the folding louver 8.

[0024] The driving assembly includes a spiral blade 9 and a driving block 10. The mounting plate 4 has a through hole, and the spiral blade 9 passes through the through hole. The spiral blade 9 rotates on the end face of the sliding ring 5. The driving block 10 is fixed on the mounting plate 4 and is adapted to the spiral blade 9. A connecting rod 11 is fixedly provided at the end of the spiral blade 9 away from the sliding ring 5. The connecting rod 11 is connected to the free movable edge of the folding louver 8.

[0025] Four folding louvers 8 are provided, and the four folding louvers 8 are arranged in a circular overlapping manner. Each folding louver 8 corresponds to a driving component. The four folding louvers 8 that overlap in sequence completely cover the probe 2 and achieve protection.

[0026] A protective rubber ring 12 is provided at the end of the light-shielding tube 6 away from the sliding ring 5. The protective rubber ring 12 is made of silicone and is black. The surfaces of the folding louvers 8 and the light-shielding tube 6 are coated with black or frosted.

[0027] Working principle: Before using spectrometer 1 to detect the sample, such as... Figure 1 As shown, under the action of spring 7, the sliding ring 5 and the mounting ring 3 maintain the closest distance. At this time, the four folding louvers 8 are in the open and overlapping state, so that the probe 2 is completely blocked. When testing the object, the light-shielding tube 6 is pressed on the object and pressure is applied, which stretches the spring 7. While the light-shielding tube 6 moves, it drives the spiral blade 9. Under the action of the drive block 10, the spiral blade 9 rotates, driving the folding louvers 8 to fold, so that the probe 2 can directly contact the object and measure it. After the measurement is completed, the probe returns to the initial state under the action of spring 7.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spectral detection light-shielding device, characterized in that... The instrument includes a mounting ring (3) fitted onto the probe (2) of the spectrometer (1). A mounting plate (4) is fixedly mounted on the end of the mounting ring (3) facing the probe (2). A sliding ring (5) is fitted on the mounting ring (3). A light-shielding tube (6) is slidably fitted on the mounting plate (4). The end of the light-shielding tube (6) is fixedly connected to the sliding ring (5). An elastic element is provided between the mounting plate (4) and the sliding ring (5). A folding louver (8) is provided at the end of the light-shielding tube (6) away from the sliding ring (5). The folding louver (8) is fan-shaped. One edge of the folding louver (8) is fixed to the side of the light-shielding tube (6). The other edge of the folding louver (8) is a free-moving edge. A driving component is provided inside the light-shielding tube (6). The driving component is used to drive the folding louver (8).

2. The spectral detection light-shielding device according to claim 1, characterized in that: The elastic element is a spring (7) disposed between the mounting plate (4) and the sliding ring (5), with one end of the spring (7) fixed on the mounting plate (4) and the other end of the spring (7) fixed on the sliding ring (5).

3. The spectral detection light-shielding device according to claim 1, characterized in that: The end of the light-shielding tube (6) away from the sliding ring (5) is provided with a protective rubber ring (12), which is made of silicone.

4. The spectral detection light-shielding device according to claim 1, characterized in that: Four folding louvers (8) are provided, and the four folding louvers (8) are arranged in a circular overlap, with each folding louver (8) corresponding to a driving component.

5. The spectral detection light-shielding device according to claim 1, characterized in that: The drive assembly includes a spiral blade (9) and a drive block (10). The mounting plate (4) has a through hole, and the spiral blade (9) passes through the through hole. The spiral blade (9) rotates on the end face of the sliding ring (5). The drive block (10) is fixed on the mounting plate (4). The drive block (10) is adapted to the spiral blade (9). A connecting rod (11) is fixedly provided at the end of the spiral blade (9) away from the sliding ring (5). The connecting rod (11) is connected to the free-moving edge of the folding louver (8).

6. The spectral detection light-shielding device according to claim 4, characterized in that: The surfaces of the folding louvers (8) and the light-shielding tubes (6) are coated with black or frosted.

Images