A sample support for spectrophotometer verification

Abstract

The utility model discloses a sample support frame for spectrophotometer calibration belongs to spectrophotometer technical field, and its technical scheme main points include support base, the top of support base is provided with clamping fixed component and with clamping fixed component cooperation uses adjusting assembly, clamping fixed component includes support plate, the front side fixedly connected with U -shaped frame of support plate, both sides of U -shaped frame all are fixedly connected with clamping pneumatic cylinder, the clamping structure of present sample is more complex, and the clamping process needs to be realized through multistage transmission, and the operation step is complicated, and it is difficult to complete the clamping of sample quickly, and after it is fixed to sample, cannot adjust the front and rear left and right positions and height of sample according to the demand of calibration, if sample center and light path center are misaligned, will lead to the path deviation of light through sample, directly causes the error of calibration result, thereby is not favorable to the use problem of problem.

Description

Technical Field

[0001] This utility model relates to the field of spectrophotometer technology, and in particular to a sample support frame for spectrophotometer calibration. Background Technology

[0002] A spectrophotometer is a precision optical instrument that utilizes the selective absorption characteristics of substances to light of different wavelengths to achieve qualitative analysis, quantitative detection, or purity identification of substances. Its core principle is based on the "Lambert-Beer Law" (the degree to which a substance absorbs light is proportional to the concentration of the substance and the distance that the light travels through the substance). It is widely used in laboratory analysis and industrial testing in fields such as chemistry, biology, medicine, environment, and food.

[0003] Currently, most spectrophotometers on the market are designed for testing liquid samples. Therefore, most spectrophotometers do not have solid sample holders. Because spectrophotometers are not equipped with solid holders, the test data is prone to errors when testing solid samples. Existing patent (publication number: CN219915355U) discloses a solid sample holder for a spectrophotometer, comprising: a box body and multiple suction cups; the bottom side of the box body is fixedly connected to the top side of the suction cups; a through hole is provided on one side wall of the box body; a support frame a is fixed on one inner side wall of the box body, and a support frame b is fixed on one side wall of the box body; a clamping mechanism is installed inside the box body, the clamping mechanism including a driving component and a clamping component; in this utility model, the box body and suction cups can improve the stability of data during solid sample testing, and the through hole can improve the stability of the rack during movement; the driving component and clamping component can effectively improve the stability and firmness of the solid sample during testing; at the same time, the driving component drives the clamping component to move, which can further reduce the shaking or vibration of the solid sample during movement, thereby improving the accuracy of data during solid sample detection.

[0004] To address the aforementioned issues, existing patents offer solutions, but their sample clamping structures are complex, requiring multi-stage transmission for the clamping process, and the operation steps are cumbersome, making it difficult to quickly clamp the sample. Furthermore, after fixing the sample, it cannot adjust the front-back, left-right, and height positions of the sample according to the testing requirements. If the sample center is misaligned with the optical path center, it will cause the light to deviate from its path through the sample, directly resulting in errors in the testing results, thus hindering its use.

[0005] To address this, a sample support frame for spectrophotometer calibration is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a sample support frame for spectrophotometer calibration, which solves the problems of existing sample clamping structures being complex, requiring multi-stage transmission for clamping, and having cumbersome operation steps, making it difficult to quickly clamp the sample. Furthermore, after fixing the sample, it cannot adjust the front-back, left-right, and height positions of the sample according to calibration requirements. If the center of the sample is misaligned with the center of the optical path, the path of light passing through the sample will be deviated, directly causing errors in the calibration results, thus hindering its use.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a sample support frame for spectrophotometer calibration, comprising a support base, wherein the top of the support base is provided with a clamping and fixing component and an adjustment component used in conjunction with the clamping and fixing component; The clamping and fixing assembly includes a support plate, a U-shaped frame is fixedly connected to the front side of the support plate, clamping cylinders are fixedly connected to both sides of the U-shaped frame, the piston rods of the two clamping cylinders pass through the inner side of the U-shaped frame and are fixedly connected to arc-shaped clamping plates, and arc-shaped rubber pads are fixedly connected to the opposite side of the two arc-shaped clamping plates.

[0008] Preferably, the adjustment component includes a longitudinal guide rail, which is fixedly connected to the top of the support base. A longitudinal electric slide is slidably connected to the surface of the longitudinal guide rail. A transverse guide rail is fixedly connected to the top of the longitudinal electric slide, and a transverse electric slide is slidably connected to the surface of the transverse guide rail.

[0009] Preferably, an L-shaped bracket is fixedly connected to the top of the transverse electric slide block, and an electric lifting rod is fixedly connected to the top of the L-shaped bracket. The output rod of the electric lifting rod passes through the L-shaped bracket and is fixedly connected to the rear side of the top of the support plate. A limit guide rod is provided on the front side of the electric lifting rod. The bottom of the limit guide rod is fixedly connected to the top of the support plate, and the top of the limit guide rod extends through to the top of the L-shaped bracket.

[0010] Preferably, the top of the L-shaped bracket has a through hole for use with the electric lifting rod, the surface of the output rod of the electric lifting rod is slidably connected to the inner wall of the through hole, and the front side of the top of the L-shaped bracket has a sliding hole for use with the limiting guide rod, the surface of the limiting guide rod is slidably connected to the inner wall of the sliding hole.

[0011] Preferably, both sides of the U-shaped frame are provided with through holes for use with clamping cylinders, and the piston rod surface of the clamping cylinder is slidably connected to the inner wall of the through hole.

[0012] Preferably, limiting slide bars are fixedly connected to the rear sides of the opposite sides of the two arc-shaped clamps, and a limiting slide groove is provided on the rear side of the inner side of the U-shaped frame to cooperate with the limiting slide bar. The limiting slide bar is slidably connected in the limiting slide groove.

[0013] Preferably, a fixing bracket is fixedly connected to the right side of the support base, and a controller that works in conjunction with the clamping and fixing components and the adjusting components is fixedly connected to the top of the fixing bracket.

[0014] Preferably, support blocks are fixedly connected to the four corners of the bottom of the support base, and anti-slip pads are fixedly connected to the bottom of the support blocks. The bottom of the anti-slip pads is provided with anti-slip texture.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This application, through the setting of the clamping and fixing components, can quickly clamp and fix samples of different specifications. The clamping structure is relatively simple and the operation is relatively convenient, which effectively improves work efficiency and reduces the labor intensity of operators. 2. By adjusting the settings of the components, this application allows for convenient adjustment of the sample's front-back, left-right, and height positions and height according to the verification requirements after the sample is fixed, ensuring that the sample can be accurately aligned with the optical path center of the spectrophotometer, thereby improving the accuracy of the verification results. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the sample support frame for spectrophotometer calibration according to this utility model. Figure 2 In this utility model Figure 1 Top view of the structure; Figure 3 This is an exploded structural diagram of the clamping and fixing component in this utility model; Figure 4 This is an exploded structural diagram of the adjustment component in this utility model; Figure 5 This is a bottom view of the support block and anti-slip pad in this utility model.

[0017] In the diagram, 1. Support base; 2. Clamping and fixing assembly; 21. Support plate; 22. U-shaped frame; 23. Clamping cylinder; 24. Arc-shaped clamping plate; 25. Arc-shaped rubber pad; 3. Adjustment assembly; 31. Longitudinal guide rail; 32. Longitudinal electric slide; 33. Transverse guide rail; 34. Transverse electric slide; 35. L-shaped bracket; 36. Electric lifting rod; 37. Limiting guide rod; 4. Through hole; 5. Sliding hole; 6. Through hole; 7. Limiting slide bar; 8. Limiting slide groove; 9. Fixing bracket; 10. Controller; 11. Support block; 12. Anti-slip pad. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 The present invention provides the following technical solution: A sample support frame for spectrophotometer calibration includes a support base 1, a clamping and fixing component 2 and an adjustment component 3 used in conjunction with the clamping and fixing component 2, and the top of the support base 1 is provided with a clamping and fixing component 2. The clamping and fixing assembly 2 includes a support plate 21. A U-shaped frame 22 is fixedly connected to the front side of the support plate 21. Clamping cylinders 23 are fixedly connected to both sides of the U-shaped frame 22. The piston rods of the two clamping cylinders 23 pass through the inner side of the U-shaped frame 22 and are fixedly connected to arc-shaped clamping plates 24. Arc-shaped rubber pads 25 are fixedly connected to the opposite side of the two arc-shaped clamping plates 24.

[0020] In this embodiment: by setting up a support base 1, a clamping and fixing component 2, and an adjustment component 3, the support base 1 provides a supporting foundation for the entire device during use. The clamping and fixing component 2 allows for the quick clamping and fixing of samples of different specifications. The clamping structure is relatively simple and easy to operate, effectively improving work efficiency and reducing the labor intensity of operators. The adjustment component 3 allows for easy adjustment of the sample's front-back, left-right, and height positions and height according to the testing requirements after the sample is fixed, ensuring that the sample can accurately align with the optical path center of the spectrophotometer, thereby improving the accuracy of the testing results.

[0021] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the adjustment component 3 includes a longitudinal guide rail 31, which is fixedly connected to the top of the support base 1. A longitudinal electric slide block 32 is slidably connected to the surface of the longitudinal guide rail 31. A transverse guide rail 33 is fixedly connected to the top of the longitudinal electric slide block 32. A transverse electric slide block 34 is slidably connected to the surface of the transverse guide rail 33.

[0022] Specifically, such as Figure 1 , Figure 2 , Figure 4As shown, an L-shaped bracket 35 is fixedly connected to the top of the transverse electric slide block 34, and an electric lifting rod 36 is fixedly connected to the top of the L-shaped bracket 35. The output rod of the electric lifting rod 36 passes through the L-shaped bracket 35 and is fixedly connected to the rear side of the top of the support plate 21. A limit guide rod 37 is provided on the front side of the electric lifting rod 36. The bottom of the limit guide rod 37 is fixedly connected to the top of the support plate 21, and the top of the limit guide rod 37 extends to the top of the L-shaped bracket 35.

[0023] Specifically, such as Figure 4 As shown, the top of the L-shaped bracket 35 is provided with a through hole 4 for use with the electric lifting rod 36. The surface of the output rod of the electric lifting rod 36 is slidably connected to the inner wall of the through hole 4. The front side of the top of the L-shaped bracket 35 is provided with a sliding hole 5 for use with the limiting guide rod 37. The surface of the limiting guide rod 37 is slidably connected to the inner wall of the sliding hole 5.

[0024] In this embodiment: by setting up a longitudinal guide rail 31, a longitudinal electric slide 32, a transverse guide rail 33, a transverse electric slide 34, an L-shaped bracket 35, an electric lifting rod 36, a limiting guide rod 37, a through hole 4, and a sliding hole 5, in use, by activating the longitudinal electric slide 32 to slide back and forth on the surface of the longitudinal guide rail 31, the front-back position of the clamping and fixing component 2 and the sample can be adjusted. By activating the transverse electric slide 34 to slide left and right on the surface of the transverse guide rail 33, the left-right position of the clamping and fixing component 2 and the sample can be adjusted. By activating the output rod of the electric lifting rod 36 to extend or retract, the clamping and fixing component can be moved. The height of the clamping and fixing component 2 and the sample can be adjusted by moving the component 2 up and down. This allows for convenient adjustment of the sample's front, back, left, right and height according to the verification requirements, ensuring that the sample can be accurately aligned with the optical path center of the spectrophotometer, thereby improving the accuracy of the verification results. The limiting guide rod 37 can guide and limit the support plate 21, improving its stability. The through hole 4 allows the electric lifting rod 36 to pass through the L-shaped bracket 35 for telescopic output. The sliding hole 5 allows the limiting guide rod 37 to slide through the L-shaped bracket 35.

[0025] Specifically, such as Figure 3 As shown, both sides of the U-shaped frame 22 are provided with through holes 6 for use with clamping cylinders 23, and the piston rod surface of the clamping cylinder 23 is slidably connected to the inner wall of the through hole 6.

[0026] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, the rear sides of the two arc-shaped clamps 24 on opposite sides are fixedly connected with limiting slide bars 7. The rear side of the inner side of the U-shaped frame 22 is provided with a limiting slide groove 8 that cooperates with the limiting slide bar 7. The limiting slide bar 7 is slidably connected in the limiting slide groove 8.

[0027] In this embodiment: by setting the through hole 6, the piston rod of the clamping cylinder 23 can pass through the U-shaped frame 22 for telescopic output. By setting the limiting slide 7 and the limiting slide groove 8, the arc-shaped clamping plate 24 can be guided and limited so that the arc-shaped clamping plate 24 will not shake.

[0028] Specifically, such as Figure 1 , Figure 2 As shown, a fixed bracket 9 is fixedly connected to the right side of the support base 1, and a controller 10 is fixedly connected to the top of the fixed bracket 9 for use with the clamping and fixing component 2 and the adjusting component 3.

[0029] Specifically, such as Figure 1 , Figure 5 As shown, support blocks 11 are fixedly connected to the four corners of the bottom of the support base 1, and anti-slip pads 12 are fixedly connected to the bottom of the support blocks 11. The bottom of the anti-slip pads 12 is provided with anti-slip texture.

[0030] In this embodiment: by setting the fixed bracket 9, the controller 10 can be supported and fixed; by setting the controller 10, the clamping and fixing component 2 and the adjusting component 3 can be controlled to work; by setting the support block 11, the support base 1 can be supported; and by setting the anti-slip pad 12, the stability of the support base 1 can be improved.

[0031] Working principle: In use, the solid sample to be tested (such as a crystal block) is first placed in the U-shaped frame 22 between the two arc-shaped clamping plates 24. Then, the clamping program is started by the controller 10, causing the piston rods of the two clamping cylinders 23 to extend and drive the two arc-shaped clamping plates 24 to move towards the sample until the arc-shaped rubber pads 25 on the inner side of the two arc-shaped clamping plates 24 are in close contact with the sides of the sample. At the same time, the limiting slide strips 7 on the two arc-shaped clamping plates 24 will slide smoothly along the limiting slide grooves 8 of the U-shaped frame 22 to ensure... The arc-shaped clamp 24 moves only horizontally without tilting. Once the clamping force preset by the controller 10 is reached, the clamping cylinder 23 stops moving and maintains pressure, thus stabilizing the sample. The operation is relatively convenient. After the sample is fixed, the controller 10 can further operate the adjustment component 3 to adjust the sample in three-dimensional space according to the optical path requirements of the spectrophotometer. By activating the longitudinal electric slide 32 to slide back and forth on the surface of the longitudinal guide rail 31, the front and back positions of the clamping and fixing component 2 and the sample can be adjusted. The left and right positions of the clamping and fixing component 2 and the sample can be adjusted by sliding the transverse electric slide 34 left and right on the surface of the transverse guide rail 33. The height of the clamping and fixing component 2 and the sample can be adjusted by extending or retracting the output rod of the electric lifting rod 36. This allows for convenient adjustment of the front-back, left-right, and height positions of the sample according to the verification requirements, ensuring that the sample can be accurately aligned with the optical path center of the spectrophotometer, thereby improving the accuracy of the verification results. After all adjustments are completed, the spectrophotometer can be used for verification. In the scenario of multiple batches of sample verification, only a release command needs to be sent by the controller 10 to retract the piston rod of the clamping cylinder 23, which can quickly remove the verified sample and replace it with a new sample without repeating the basic adjustment parameters. After all verification operations are completed, the longitudinal electric slide 32, the transverse electric slide 34, and the electric lifting rod 36 can be reset by the controller 10, thus completing the entire verification auxiliary process.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sample support frame for spectrophotometer calibration, comprising a support base (1), characterized in that: The top of the support base (1) is provided with a clamping and fixing component (2) and an adjustment component (3) that works in conjunction with the clamping and fixing component (2); The clamping and fixing assembly (2) includes a support plate (21), a U-shaped frame (22) is fixedly connected to the front side of the support plate (21), and clamping cylinders (23) are fixedly connected to both sides of the U-shaped frame (22). The piston rods of the two clamping cylinders (23) pass through the inner side of the U-shaped frame (22) and are fixedly connected to the arc-shaped clamping plate (24). Arc-shaped rubber pads (25) are fixedly connected to the opposite side of the two arc-shaped clamping plates (24).

2. The sample support frame for spectrophotometer calibration according to claim 1, characterized in that: The adjustment component (3) includes a longitudinal guide rail (31), which is fixedly connected to the top of the support base (1). A longitudinal electric slide (32) is slidably connected to the surface of the longitudinal guide rail (31). A transverse guide rail (33) is fixedly connected to the top of the longitudinal electric slide (32). A transverse electric slide (34) is slidably connected to the surface of the transverse guide rail (33).

3. The sample support frame for spectrophotometer calibration according to claim 2, characterized in that: The top of the transverse electric slide (34) is fixedly connected to an L-shaped bracket (35), and the top of the L-shaped bracket (35) is fixedly connected to an electric lifting rod (36). The output rod of the electric lifting rod (36) passes through the L-shaped bracket (35) and is fixedly connected to the rear side of the top of the support plate (21). A limit guide rod (37) is provided on the front side of the electric lifting rod (36). The bottom of the limit guide rod (37) is fixedly connected to the top of the support plate (21), and the top of the limit guide rod (37) passes through to the top of the L-shaped bracket (35).

4. A sample support frame for spectrophotometer calibration according to claim 3, characterized in that: The top of the L-shaped bracket (35) is provided with a through hole (4) for use with the electric lifting rod (36). The output rod surface of the electric lifting rod (36) is slidably connected to the inner wall of the through hole (4). The front side of the top of the L-shaped bracket (35) is provided with a sliding hole (5) for use with the limiting guide rod (37). The surface of the limiting guide rod (37) is slidably connected to the inner wall of the sliding hole (5).

5. A sample support frame for spectrophotometer calibration according to claim 1, characterized in that: Both sides of the U-shaped frame (22) are provided with through holes (6) for use with clamping cylinders (23), and the piston rod surface of the clamping cylinder (23) is slidably connected to the inner wall of the through hole (6).

6. A sample support frame for spectrophotometer calibration according to claim 1, characterized in that: The two arc-shaped clamps (24) are fixedly connected to the rear side of opposite sides with limiting slides (7). The rear side of the inner side of the U-shaped frame (22) is provided with a limiting slide groove (8) that works with the limiting slide (7). The limiting slide (7) is slidably connected in the limiting slide groove (8).

7. A sample support frame for spectrophotometer calibration according to claim 1, characterized in that: A fixed bracket (9) is fixedly connected to the right side of the support base (1), and a controller (10) is fixedly connected to the top of the fixed bracket (9) for use with the clamping and fixing component (2) and the adjusting component (3).

8. A sample support frame for spectrophotometer calibration according to claim 1, characterized in that: Support blocks (11) are fixedly connected to the four corners of the bottom of the support base (1), and anti-slip pads (12) are fixedly connected to the bottom of the support blocks (11). Anti-slip textures are provided on the bottom of the anti-slip pads (12).

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