Fixing device for short-optical-path cuvette

Abstract

The utility model discloses a fixing device for a short-optical-path cuvette. The fixing device comprises a base, a light guide plate and a light guide plate, a placing groove is formed in the middle of the base, a spring is arranged in the placing groove, and the spring is connected with the fixing piece; a rectangular fixing hole is formed in the middle of the containing groove, and a base plate is arranged on the lower wall of the base. The device can be directly placed on a measuring cell for use, the size of the opening can be adjusted by additionally arranging the fixing piece with the spring at the opening, and the device is suitable for placing and fixing cuvettes with different optical paths; besides, the cuvettes can be fixed at the same position through the acting force of the spring, so that the influence of the position change of the cuvettes on the measurement result is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to a fixing device for a short optical path cuvette. Background Art

[0002] When using near-infrared spectroscopy to detect liquid samples, a cuvette containing the sample to be tested is usually placed in a measuring cell, and the absorption spectrum of the sample is collected by transmission. Some samples require short-path cuvettes with an optical path of 1 mm, 2 mm, etc. Short-path cuvettes are thinner and are not easy to fix in the measuring cell, resulting in fluctuations in the spectrum collected each time, affecting the stability of the test results.

[0003] Therefore, the present application provides a fixing device for a short optical path cuvette. The device can be directly placed on a measuring cell for use. By installing a fixing sheet with a spring at the opening, the size of the opening can be adjusted, which is suitable for the placement and fixing of cuvettes with different optical paths. In addition, the cuvette can be fixed in the same position through the action of the spring, effectively reducing the impact of the change in the position of the cuvette on the measurement result. Utility Model Content

[0004] In view of the above problem, the utility model aims to provide a fixing device for a short optical path cuvette.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A fixing device for a short optical path cuvette, comprising: a base;

[0007] A placement groove is arranged in the middle of the base, a spring is arranged in the placement groove, and the spring is connected to the fixing plate;

[0008] A rectangular fixing hole is opened in the middle of the placement groove, and a pad is arranged on the lower wall of the base.

[0009] Further: a movable card slot is arranged on the opposite wall of the placement slot, the movable card slot is arranged to be open on one side, and a card plate is placed in the movable card slot.

[0010] Furthermore: the pad and the lower wall of the placement groove are both provided with a shock-absorbing layer, and the fixing plate and one side of the clamping plate are both provided with a soft cushion.

[0011] Further: the device also includes: a fixing frame;

[0012] The fixing frame is provided with a plurality of horizontal slots, the horizontal slots are provided with a fixing plate, the fixing plate is provided with a placing frame, the placing frame is provided with a vertical slot, the vertical slots are provided with a driving rod, and the driving rod is connected with a supporting plate.

[0013] Further: a label slot is arranged on the side wall of the placement frame.

[0014] Further: the side wall of the fixing plate is connected with a side plate, and the side plate and the fixing frame are both provided with clamping holes.

[0015] Compared with the prior art, the utility model has at least one of the following beneficial effects:

[0016] (1) It can be used to fix short-path cuvettes, has good fixing effect, is easy to use, and does not require changes to the existing measuring cell.

[0017] (2) The base is made of a relatively hard material and can be fixed on the measuring cell of the near-infrared spectrometer. There is a fixing hole in the middle of the base for the cuvette to be placed in. One side of the spring is connected to the fixing plate for easy fixation. This can effectively reduce the impact of the position change of the cuvette and improve the stability of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first top view of the base of the utility model.

[0019] Figure 2 It is a second top view of the base of the utility model.

[0020] Figure 3 It is a side view of the base of the utility model.

[0021] Figure 4 It is a side view of the fixing frame of the utility model.

[0022] Figure 5 It is a side view of the placement frame of the utility model.

[0023] In the figure: base 1, placement slot 2, spring 3, fixing plate 4, fixing hole 5, pad 6, movable card slot 7, card plate 8, shock absorbing layer 9, cushion 10, fixing frame 11, horizontal card slot 12, fixing plate 13, placement frame 14, vertical card slot 15, driving rod 16, support plate 17, label slot 18, side plate 19, card hole 20. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] Embodiment 1:

[0026] A fixing device for a short optical path cuvette comprises: a base 1;

[0027] A placement slot 2 is provided in the middle of the base 1, a spring 3 is provided in the placement slot 2, and the spring 3 is connected to a fixing plate 4;

[0028] A rectangular fixing hole 5 is opened in the middle of the placement groove 2, and a pad 6 is provided on the lower wall of the base 1. The placement groove 2 is provided on the base 1, and the cuvette is placed in the placement groove 2. The spring 3 and the connected fixing plate 4 can fix the cuvette; the fixing hole 5 of the placement groove 2 is provided to facilitate the adjustment of the placement height according to the needs, and the pad 6 at the bottom of the base 1 is consistent with the height of the placement groove 2, which is convenient for placement. The width of the placement groove 2 is consistent with the width of the cuvette, which meets the needs.

[0029] Embodiment 2:

[0030] A movable card slot 7 is arranged on the opposite wall of the placement slot 2, and the movable card slot 7 is arranged to be open on one side, and a card plate 8 is placed in the movable card slot 7. The card plate 8 is placed from the opening of the movable card slot 7, so that the colorimetric cell can be placed in the area between the card plate 8 and the fixing plate 4 as needed.

[0031] Embodiment 3:

[0032] The pad 6 and the lower wall of the placement groove 2 are both provided with a shock-absorbing layer 9, and the fixing plate 4 and one side of the clamping plate 8 are both provided with a soft pad 10. The provision of the shock-absorbing layer 9 plays a shock-absorbing role; the provision of the soft pad 10 facilitates the placement of the cuvette.

[0033] Embodiment 4:

[0034] The device also includes: a fixing frame 11;

[0035] The fixing frame 11 is provided with a plurality of horizontal slots 12, the horizontal slots 12 are provided with a fixing plate 13, the fixing plate 13 is provided with a placing frame 14, the placing frame 14 is provided with a vertical slot 15, the vertical slot 15 is provided with a driving rod 16, and the driving rod 16 is connected to a supporting plate 17. The fixing plate 13 can be moved on the horizontal slot 12 as needed, the vertical slot 15 on the side wall of the placing frame 14 is provided with a driving rod 16, and the driving rod 16 is connected to the supporting plate 17, the base 1 is placed on the supporting plate 17, and can be taken out or placed as needed, so as to facilitate the detection of more cuvettes.

[0036] The side wall of the placement frame 14 is provided with a label slot 18. The provision of the label slot 18 facilitates the placement of labels.

[0037] The side wall of the fixing plate 13 is connected with a side plate 19, and a clamping hole 20 is provided on the side plate 19 and the fixing frame 11. A bayonet is placed in the clamping hole 20 of the side plate 19 and the clamping hole 20 of the fixing frame 11 for easy fixing.

[0038] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A fixing device for a short optical path cuvette, characterized in that: include: Base (1); A placement groove (2) is provided in the middle of the base (1), a spring (3) is provided in the placement groove (2), and the spring (3) is connected to a fixing plate (4); A rectangular fixing hole (5) is provided in the middle of the placement groove (2), and a pad (6) is provided on the lower wall of the base (1).

2. A fixing device for a short optical path cuvette according to claim 1, characterized in that: A movable card slot (7) is arranged on the opposite wall of the placement slot (2); the movable card slot (7) is arranged to be open on one side, and a card plate (8) is placed in the movable card slot (7).

3. A fixing device for a short optical path cuvette according to claim 1, characterized in that: The pad (6) and the lower wall of the placement groove (2) are both provided with a shock-absorbing layer (9), and the fixing plate (4) and one side of the clamping plate (8) are both provided with a soft pad (10).

4. A fixing device for a short optical path cuvette according to claim 1, characterized in that: The device also includes: a fixing frame (11); A plurality of horizontal slots (12) are arranged on the fixing frame (11), a fixing plate (13) is arranged on the horizontal slots (12), a placement frame (14) is arranged on the fixing plate (13), a vertical slot (15) is arranged on the placement frame (14), a driving rod (16) is arranged on the vertical slot (15), and the driving rod (16) is connected to a supporting plate (17).

5. A fixing device for a short optical path cuvette according to claim 4, characterized in that: A label slot (18) is provided on the side wall of the placement frame (14).

6. A fixing device for a short optical path cuvette according to claim 4, characterized in that: The side wall of the fixing plate (13) is connected to a side plate (19), and both the side plate (19) and the fixing frame (11) are provided with clamping holes (20).

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