Cuvette support groove

Abstract

A cuvette support groove is a cuboid-shaped cavity with an opening in the upper portion, light-transmitting openings are formed in the light-facing face and the backlight face of the support groove and used for allowing incident light to pass through, small square prisms are arranged at the four inner corners of the support groove, the four small prisms are consistent in size, one right angle of each small prism coincides with the right angle of the support groove, and the other right angle of each small prism coincides with the right angle of the support groove. The height of the small prism is equal to that of the support groove. And the distance between the two small prisms between the bracket groove light-facing surface and the bracket groove backlight surface is matched with the outer diameter between the two colorimetric light surfaces. And the inner diameter between the side surfaces of the two bracket grooves is matched with the outer diameter between the rough surfaces of the two cuvettes. According to the cuvette bracket groove provided by the utility model, the light surface of the cuvette is clamped by the four small prisms, and the rough surface of the cuvette is clamped by the two side surfaces, so that the cuvette is stably and vertically fixed on the bracket groove. Except the part contacted with the small prism, the smooth surface of the cuvette is not contacted and rubbed with the bracket groove in the plugging process, and the smooth surface is not abraded.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of spectrum analysis instrument, especially relates to a cuvette support groove. BACKGROUND

[0002] When the sample is determined by spectrophotometry, the sample solution is filled into the cuvette, and then the cuvette is placed in the cuvette support groove for determination.The cuvette support groove fixes and supports the cuvette to accurately determine the absorbance.

[0003] The cuvette support groove is generally a cuboid cavity, in order to fix the cuvette more stably, the inner diameter of the groove body is very close to the outer diameter of the cuvette, and the cuvette surface is easily scratched when the cuvette is inserted and pulled out, which causes the light transmittance of the cuvette to decrease and affects the use effect and service life of the cuvette.

[0004] The patent CN201120552763.9 discloses a cuvette support frame, which is designed to be an arc surface outwardly arched by opening the side surface with a light transmission port, to reduce the scratch on the cuvette surface.But the arc surface will be extruded and deformed after the cuvette is inserted and pulled out for many times, and the cuvette inserted into the support frame will not be kept in a vertical state, which affects the determination of the absorbance. SUMMARY

[0005] The utility model wants to solve the technical problem to provide a cuvette support groove with simple structure, which is not easy to scratch the cuvette surface when the cuvette is inserted and pulled out, and makes the cuvette keep in a vertical state.

[0006] In order to solve the above problems, the utility model provides the following technical scheme:

[0007] A cuvette support groove is a cuboid cavity with an upper opening, the light receiving surface and the back light surface of the support groove are both provided with a light transmission port for passing incident light, four inner corners of the support groove are provided with square small prisms, the sizes of the four small prisms are consistent, one right angle of the small prism coincides with the right angle of the support groove, and the height of the small prism is equal to the height of the support groove.

[0008] Further, the distance between the two small prisms between the light receiving surface and the back light surface of the support groove is adapted to the outer diameter between the two cuvette surfaces.

[0009] Further, the inner diameter between the two support groove side surfaces is adapted to the outer diameter between the two cuvette surface.

[0010] Further, the distance between the two small prisms between the two support groove side surfaces is greater than or equal to the width of the light transmission port.

[0011] The utility model discloses a cuboid small prism is additionally arranged in the colorimetric cup support groove, and the small prism clamps four edges of the colorimetric cup light surface, and the two sides of the support groove clamp the colorimetric cup rough surface, stably fix the colorimetric cup in the support groove, and make the colorimetric cup keep vertical state to accurately determine the absorbance.

[0012] The small prism is located at both sides of the light transmission port, and the distance between the two small prisms is greater than or equal to the width of the light transmission port, so that the incident light is not shielded.

[0013] The utility model discloses the beneficial effects are:

[0014] (1) the colorimetric cup support of the utility model is clamped by four small prisms to the colorimetric cup light surface, and the two sides are clamped to the colorimetric cup rough surface, and the colorimetric cup is stably and vertically fixed on the support to meet the determination requirement.

[0015] (2) the setting of the small prism avoids the friction between the colorimetric cup light surface and the support groove during the insertion and extraction process, and does not cause abrasion to the light surface.

[0016] (3) the support groove structure is simple and practical. DRAWINGS

[0017] Figure 1 It is the structure schematic view of the colorimetric cup support groove of the utility model.

[0018] Figure 2 It is the plan view of the colorimetric cup support groove after the colorimetric cup is put in.

[0019] In the drawing: 1 - support groove light receiving surface, 2 - support groove back light surface, 3 - light transmission port, 4 - small prism, 5 - support groove side, 6 - colorimetric cup rough surface, 7 - colorimetric cup light surface. CONCRETE IMPLEMENTATION

[0020] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the utility model is further explained in detail below with the specific implementation and application range. Figure 1 、 2 and specific implementation.

[0021] The following embodiment is only used to help understanding the method and core idea of the utility model. For the general technical personnel in the art, according to the idea of the utility model, the specific implementation and application range will have changes, and the following content should not be understood as the limitation of the utility model. Example 1

[0022] (1) colorimetric cup support groove

[0023] A cuvette holder groove is a cuboid cavity with an open upper part. The light-incident surface 1 and the light-incident surface 2 are both provided with light-transmitting openings 3 for transmitting incident light. Four small cuboid prisms 4 are arranged at the four inner corners of the holder groove. The four small cuboid prisms 4 are of the same size. One right angle of the small cuboid prisms 4 coincides with a right angle of the holder groove. The height of the small cuboid prisms 4 is equal to the height of the holder groove.

[0024] The distance between the small cuboid prisms 4 on the light-incident surface 1 and the light-incident surface 2 is adapted to the outer diameter between the two cuvette light surfaces 7.

[0025] The inner diameter between the two holder groove side surfaces 5 is adapted to the outer diameter between the two cuvette light surfaces 6.

[0026] The distance between the small cuboid prisms 4 on the two holder groove side surfaces 5 is greater than the width of the light-transmitting openings 3.

[0027] (2) Use of the cuvette holder groove

[0028] (a) Inject the test solution into the cuvette. Wipe the cuvette light surface 7 with a lens paper or a water-absorbing paper.

[0029] (b) Hold the cuvette by the cuvette light surface 6. Insert the cuvette into the cuvette holder groove with the cuvette light surface 7 facing the light-transmitting openings 3. At this time, the two cuvette light surfaces 6 and the four small cuboid prisms 4 hold the cuvette, making the cuvette in a vertical and stable state.

[0030] (c) After the test, hold the cuvette by the cuvette light surface and take the cuvette out of the cuvette holder groove.

[0031] During the process of inserting and taking out the cuvette from the cuvette holder groove, the part of the cuvette light surface that is not in contact with the small cuboid prisms 4 does not contact the holder groove, and no abrasion occurs, which does not affect the light transmittance of the cuvette. In addition, the four small cuboid prisms hold the cuvette, making the cuvette in a stable and vertical state.

[0032] During the test, the small cuboid prisms 4 are located on both sides of the light-transmitting openings 3, and the distance between the two small cuboid prisms 4 is greater than the width of the light-transmitting openings 3, which does not block the incident light and does not affect the test. Example 2

[0033] (1) Cuvette holder groove

[0034] A cuvette holder groove is a cuboid cavity with an open upper part. The light-incident surface 1 and the light-incident surface 2 are both provided with light-transmitting openings 3 for transmitting incident light. Four small cuboid prisms 4 are arranged at the four inner corners of the holder groove. The four small cuboid prisms 4 are of the same size. One right angle of the small cuboid prisms 4 coincides with a right angle of the holder groove. The height of the small cuboid prisms 4 is equal to the height of the holder groove.

[0035] The distance between the small prisms 4 between the two support groove side faces 5 is equal to the width of the light transmission port 3.

[0036] The inner diameter between the two support groove side faces 5 and the outer diameter between the two colorimetric cell light faces 6 are matched.

[0037] The distance between the small prisms 4 between the two support groove side faces 5 is equal to the width of the light transmission port 3.

[0038] (2) Use of the colorimetric cell support groove

[0039] The use method of the colorimetric cell support groove is the same as that of Example 1.

[0040] In the process of inserting and pulling out the colorimetric cell into and out of the colorimetric cell support groove, except for the part in contact with the small prisms 4, the rest of the colorimetric cell light face does not contact the support groove, and no wear phenomenon occurs, which will not affect the light transmittance of the colorimetric cell. In addition, the four small prisms hold the colorimetric cell, making the colorimetric cell present a stable vertical state.

[0041] In the determination process, the small prisms 4 are located on both sides of the light transmission port 3, and the distance between the two small prisms 4 is equal to the width of the light transmission port 3, which will not block the incident light and will not affect the determination.

Claims

1. A cuvette holder slot, which is an open-top cuboid cavity, the light-incident surface (1) and the light-incident back surface (2) of the holder slot are both provided with a light-transmitting opening (3) for passing incident light, characterized in that: Four inner corners of the bracket groove are provided with small cuboid prisms (4), the four small cuboid prisms (4) are consistent in size, one right angle of the small cuboid prisms (4) coincides with the right angle of the bracket groove, and the height of the small cuboid prisms (4) is equal to the height of the bracket groove.

2. The cuvette holder slot according to claim 1, characterized in that: The distance between the two small cuboid prisms between the light-incident surface (1) and the light-incident surface (2) of the bracket groove is adapted to the outer diameter between the two colorimetric light surfaces (7).

3. The cuvette holder slot according to claim 1, characterized in that: The inner diameter between the two bracket groove side surfaces (5) is adapted to the outer diameter between the two colorimetric cell hair surfaces (6).

4. The cuvette holder slot according to claim 1 or 3, characterized in that: The distance between the small cuboid prisms (4) between the two bracket groove side surfaces (5) is greater than or equal to the width of the light-transmitting port (3).

Images