Ultraviolet and visible spectrophotometer

Abstract

The utility model relates to the field of environment detection equipment, in particular to an ultraviolet and visible spectrophotometer which comprises a cuvette groove with a notch, at least one first insertion plate and at least one second insertion plate, wherein the first insertion plate and the second insertion plate are arranged in the notch; three pairs of first inserting grooves for the first inserting plates to be inserted are formed in the two opposite inner walls of the notch, three pairs of second inserting grooves for the second inserting plates to be inserted are formed in the other two opposite inner walls of the notch, the first inserting grooves and the second inserting grooves are communicated with the end face of the notch, and the second inserting plates are detachably inserted in the first inserting plates. The cuvette groove with one specification can be used for placing cuvettes with different specifications, so that the use flexibility of the photometer is improved.

Description

Technical Field

[0001] This application relates to the field of environmental detection equipment, and particularly to an ultraviolet-visible spectrophotometer. Background Art

[0002] A spectrophotometer, also known as a spectrometer, is a scientific instrument that decomposes light with complex components into spectral lines. An ultraviolet-visible spectrophotometer is an analytical instrument based on the principle of ultraviolet-visible spectrophotometry, which uses the absorption of radiation in the ultraviolet-visible spectral region by substance molecules for analysis, and mainly consists of components such as a light source, a monochromator, an absorption cell, a detector, and a signal processor.

[0003] The existing ultraviolet-visible spectrophotometers usually include a body. A detection cavity is provided in the body, a light source is arranged in the detection cavity, a cavity cover for covering the detection cavity is hinged on the body, a cuvette slot is arranged in the detection cavity, a plurality of square notches are provided on the cuvette slot, and square cuvettes with a shape adapted thereto can be placed in the notches.

[0004] During use, an operator inserts a cuvette containing a sample into the cuvette slot, then closes the cavity cover, and the body starts to test and analyze the sample in the detection cavity.

[0005] The above-mentioned existing technical solutions have the following defects: The cuvette slot and the cuvette sold on the market currently have a strong correspondence. Since the notches of the cuvette slot are fixed and unchangeable, it is difficult for a cuvette slot of one specification to hold cuvettes of multiple different specifications, thereby reducing the flexibility of use of the spectrophotometer. Utility Model Content

[0006] This application provides an ultraviolet-visible spectrophotometer in order to enable a cuvette slot of one specification to hold cuvettes of multiple different specifications, thereby improving the flexibility of use of the spectrophotometer.

[0007] The above technical objectives of this application are achieved through the following technical solutions:

[0008] An ultraviolet-visible spectrophotometer includes a cuvette slot with notches, a first insertion plate and a second insertion plate arranged in the notches, and at least one first insertion plate is provided;

[0009] Three pairs of first slots for inserting the first insertion plate are provided on opposite inner walls of the notch, three pairs of second slots for inserting the second insertion plate are provided on the other opposite inner walls of the notch, both the first slots and the second slots are communicated with the end face of the notch, and the second insertion plate is detachably inserted on the first insertion plate.

[0010] By adopting the above technical solution, after the first plug plate and the second plug plate are mutually engaged and inserted into the notch, a plurality of square receiving slots are formed in the cuvette slot, and the cuvette can be placed in the receiving slots. At the same time, the positions of the first plug plate and the second plug plate in the cuvette slot can be adjusted according to the size of the cuvette, thereby forming receiving slots of different specifications, so as to adapt to cuvettes of different sizes for detection, thereby improving the use flexibility of the photometer.

[0011] Optionally, the edges of the first slot and the second slot at the connection points with the notch are processed to be arc-shaped.

[0012] By adopting the above technical solution, the arc-shaped edge makes the slot opening of the slot expand, which is convenient for the staff to insert the plug plate into the slot, thereby facilitating the adjustment of the size of the accommodating slot according to the size of the cuvette.

[0013] Optionally, three first bayonet ports are spaced apart on the first plug board, and a second bayonet port is provided on the second plug board, and the second bayonet port can be engaged with the first bayonet port.

[0014] By adopting the above technical solution, after the first bayonet and the second bayonet are engaged with each other, the connection stability between the plug boards can be enhanced, and the plug boards can be stably inserted into the slots.

[0015] Optionally, the first bayonet opening and the second bayonet opening have two opposite edges that are processed into arc shapes.

[0016] By adopting the above technical solution, the arc-shaped edge forms a flared opening, thereby facilitating the plugging and locking of the plug boards with each other.

[0017] Optionally, when the second plug board is inserted into the slot, the second plug board protrudes from the slot.

[0018] By adopting the above technical solution, the edge of the second plugging plate protruding from the slot is convenient for workers to insert and remove, thereby facilitating the adjustment of the receiving slot.

[0019] Optionally, the photometer further comprises a limit plate hinged on the second plug plate, a spring sheet fixed on the limit plate, and a support member fixed on the limit plate;

[0020] The limit plate is L-shaped and its bend is hinged to the second plug plate near the edge of the second bayonet. One end of the spring sheet is fixed to the inner wall of the right-angle opening of the limit plate, and one end of the support member is fixed to the outer wall of the limit plate opening away from the spring sheet.

[0021] By adopting the above technical solution, when the cuvette is stably placed in the receiving groove, the second insertion plate can be rotated and set at a position slightly larger than the size of the cuvette, and then the cuvette is placed in the receiving groove. When the cuvette is placed in the opening of the limiting plate and gravity is applied downward, the other end of the limiting plate automatically rotates and drives the elastic sheet to clamp the cuvette, so that a cuvette with a mismatched size can be used, further improving the applicability of the photometer.

[0022] Optionally, the elastic sheet is arc-shaped, and the arc opening faces the right-angle opening of the limiting plate.

[0023] By adopting the above technical solution, the arc-shaped elastic sheet can not only stably clamp the cuvette, but also facilitate the cuvette to be placed into the receiving cavity.

[0024] Optionally, two elastic sheets are provided.

[0025] By adopting the above technical solution, the two elastic sheets can stably clamp the cuvette.

[0026] Optionally, the support member is a spring.

[0027] By adopting the above technical solution, the spring stably supports the limiting plate. When the cuvette is taken out, the compressed spring can also push the limiting plate upward to drive the limiting plate to rotate, thus facilitating the removal of the cuvette.

[0028] Optionally, two support members are provided.

[0029] By adopting the above technical solution, the limiting plate can be stably supported.

[0030] In summary, the present application has the following technical effects:

[0031] By providing a cuvette slot, a first insertion plate and a second insertion plate, after the first insertion plate and the second insertion plate are mutually engaged and inserted into the slot opening, a plurality of square receiving grooves are formed in the cuvette slot, and the cuvette can be placed in the receiving grooves. At the same time, according to the size of the cuvette, the positions of the first insertion plate and the second insertion plate in the cuvette slot can be adjusted, so as to form receiving grooves of different specifications, so as to adapt to cuvettes of different sizes for detection, improving the use flexibility of the photometer;

[0032] By providing a first bayonet and a second bayonet, after the first bayonet and the second bayonet are mutually engaged, it can not only enhance the connection stability between the insertion plates, but also stably insert the insertion plates into the slot opening;

[0033] By setting a limit plate, a shrapnel and a support member, the cuvette is placed into the receiving groove. When the cuvette is placed within the opening of the limit plate and a downward gravity is applied, the other end of the limit plate automatically rotates, driving the shrapnel to clamp the cuvette, so that a cuvette with a mismatched size can be used, further improving the applicability of the photometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the external structure diagram of the present application;

[0035] Figure 2 is the structural schematic diagram of the cuvette slot, the first plug board and the second plug board in the present application;

[0036] Figure 3 is the schematic diagram of the cooperation of the cuvette slot, the first plug board and the second plug board in the present application;

[0037] Figure 4 is the structural schematic diagram of the second plug board in the second embodiment of the present application.

[0038] Description of the reference numerals: 1, body; 2, cuvette slot; 21, slot opening; 22, first slot; 23, second slot; 3, first plug board; 31, first bayonet; 4, second plug board; 41, second bayonet; 5, limit assembly; 51, fixed seat; 52, limit plate; 53, shrapnel; 54, support member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The present application will be further described in detail below with reference to the accompanying drawings.

[0040] Embodiment 1

[0041] The embodiment of the present application discloses an ultraviolet-visible spectrophotometer. Referring to Figure 1 , the photometer includes a body 1, a detection cavity is opened inside the body, and a cuvette slot 2 is arranged in the detection cavity.

[0042] Combined with Figure 2 and Figure 3, the cuvette slot 2 is a strip slot, and a slot 21 is provided on the cuvette slot 2, and the slot 21 is strip-shaped. A first plugboard 3 and a second plugboard 4 are detachably installed in the slot 21. In this embodiment, three first plugboards 3 are provided, and one second plugboard 4 is provided. First slots 22 for the first plugboard 3 to be plugged in are provided in pairs on two inner walls opposite to each other in the length direction of the slot 21, and three pairs of first slots 22 are provided, and the three pairs of first slots 22 are evenly spaced along the width direction of the slot 21. Second slots 23 for the second plugboard 4 to be plugged in are provided in pairs on two inner walls opposite to each other in the width direction of the slot 21, and three pairs of second slots 23 are provided, and the three pairs of second slots 23 are evenly spaced, and the three pairs of second slots 23 are located in the middle of the slot 21. The first slot 22 and the second slot 23 are respectively connected to the end faces of the slot 21, and the edges of the first slot 22 and the second slot 23 at the connection points with the slot 21 are processed into arc shapes, so as to facilitate the staff to insert the plug board into the slot.

[0043] Reference Figure 3 The first plug board 3 is a strip-shaped board, and both ends of the first plug board 3 can be inserted into a pair of first slots 22 at the same time. Three first bayonet holes 31 for the second plug board 4 to be engaged are arranged at intervals on one side of the length direction of the first plug board 3, and the second plug board 4 can be engaged in the first bayonet holes 31. When the first plug board 3 is inserted into the pair of first slots 22, the length direction of the first plug board 3 is parallel to the length direction of the cuvette slot 2, and the three first bayonet holes 31 are respectively located on the same straight line with the three pairs of second slots 23.

[0044] Reference Figure 3 The second plug board 4 is a strip-shaped board, and three second bayonet holes 41 are evenly spaced on the second plug board 4. The first plug board 3 can be clamped in the second bayonet holes 41, and the second bayonet holes 41 can be mutually clamped with the first bayonet holes 31. The edges of the openings of the first bayonet holes 31 and the second bayonet holes 41 are processed into arc shapes, so that the first bayonet holes 31 and the second bayonet holes 41 form an expanded shape, so that the staff can plug the first plug board 3 and the second plug board 4 together. When the second bayonet 41 is engaged with the first bayonet 31, the edge of the second plugboard 4 in the opening direction of the second bayonet 41 is flush with the edge of the first plugboard 3 away from the opening direction of the first bayonet 31, and both can fit into the bottom of the slot 21. When the second plugboard 4 fits into the bottom of the slot, the other side of the second plugboard 4 protrudes out of the slot 21. Therefore, when the second plugboard 4 is located in the slot 21, the second plugboard 4 protrudes out of one side of the slot 21, which makes it easy to plug and unplug the second plugboard 4 and to adjust the position of the second plugboard 4.

[0045] After the first plug board 3 and the second plug board 4 are mutually engaged and inserted into the notch 21, a plurality of square accommodation grooves are formed in the colorimetric cuvette slot 2, and colorimetric cuvettes can be placed in the accommodation grooves. At the same time, according to the size of the colorimetric cuvette, the positions of the first plug board 3 and the second plug board 4 in the colorimetric cuvette slot 2 can be adjusted, so as to form accommodation grooves of different specifications, so as to adapt to colorimetric cuvettes of different sizes for detection, and improve the use flexibility of the photometer.

[0046] Embodiment 2

[0047] The difference between this embodiment and Embodiment 1 is that:

[0048] Refer to Figure 4 , a limiting component 5 is arranged on the same board surface of the second plug board 4. There are four groups of limiting components 5, and the four groups of limiting components 5 are respectively located on both sides of the second bayonet 41. The limiting component 5 includes two fixed seats 51 arranged at intervals and fixed on the board surface of the second plug board 4, a limiting plate 52 hinged between the two fixed seats 51, a spring piece 53 fixed on the limiting plate 52, and a support piece 54 fixed on the limiting plate 52.

[0049] Refer to Figure 4 , the fixed seat 51 is arranged at the edge of the board surface on one side of the second bayonet 41 communicating with the length direction of the second plug board 4. The limiting plate 52 is L-shaped, and fixing shafts are respectively and fixedly arranged on both sides of the L-shaped bending part of the limiting plate 52. The two fixing shafts are respectively rotatably arranged in the two fixed seats 51, and the fixing shafts are located on the side of the fixed seat 51 away from the second plug board 4. The right-angle opening of the limiting plate 52 faces away from the opening direction of the second bayonet 41.

[0050] Refer to Figure 4 , the spring piece 53 is made of a metal sheet. One end of the spring piece 53 is fixedly connected to a section of the limiting plate 52 close to the second plug board 4, and the other end of the spring piece 53 is arranged at an interval from the limiting plate 52. The spring piece 53 is located in the right-angle opening of the limiting plate 52 and on the board surface of the limiting plate 52 facing away from the second plug board 4. The spring piece 53 is arc-shaped and the arc opening faces the right-angle opening of the limiting plate 52. In this embodiment, two spring pieces 53 are arranged at intervals on one limiting plate 52, and the two spring pieces 53 can form a stable abutment against the colorimetric cuvette.

[0051] Refer to Figure 4 , at least two support pieces 54 are arranged. In this embodiment, the support piece 54 is a spring. One end of the spring is fixedly connected to a section of the limiting plate 52 away from the spring piece 53 and is located outside the right-angle opening. The other end of the support piece 54 can abut against the bottom of the notch 21.

[0052] When the cuvette still cannot be stably placed in the receiving groove after adjusting the first clamping plate and the second clamping plate, the second insertion plate 4 can be rotated and set at a position slightly larger than the size of the cuvette, and then the cuvette is placed in the receiving groove. When the cuvette is placed in the opening of the limiting plate 52 and a gravity is applied downward, the other end of the limiting plate 52 automatically rotates, and drives the elastic piece 53 to clamp the cuvette, so that the cuvette with a mismatched size can be used, further improving the applicability of the photometer.

[0053] This specific embodiment is only an explanation of the present application, and it does not limit the present application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A UV-visible spectrophotometer, characterized in that: It comprises a cuvette slot (2) with a notch (21), a first plugging plate (3) and a second plugging plate (4) arranged in the notch (21), wherein at least one first plugging plate (3) is provided; Three pairs of first slots (22) for the first plugging board (3) to be plugged into are provided on two opposite inner walls of the slot (21), and three pairs of second slots (23) for the second plugging board (4) to be plugged into are provided on two other opposite inner walls of the slot (21), the first slots (22) and the second slots (23) are both connected to the end surface of the slot (21), and the second plugging board (4) can be detachably plugged into the first plugging board (3).

2. The UV-visible spectrophotometer according to claim 1, characterized in that: The edges of the first slot (22) and the second slot (23) at the places where they are connected to the notch (21) are processed into an arc shape.

3. The UV-visible spectrophotometer according to claim 1, characterized in that: The first plug board (3) is provided with three first bayonet ports (31) at intervals, and the second plug board (4) is provided with a second bayonet port (41), and the second bayonet port (41) can be engaged with the first bayonet port (31).

4. The UV-visible spectrophotometer according to claim 3, characterized in that: The openings of the first bayonet (31) and the second bayonet (41) have two opposite edges processed into arc shapes.

5. A UV-visible spectrophotometer according to any one of claims 1 to 4, characterized in that: When the second plugging plate (4) is inserted into the slot (21), the second plugging plate (4) protrudes from the slot (21).

6. The UV-visible spectrophotometer according to claim 5, characterized in that: The photometer also includes a limit plate (52) hinged on the second plug plate (4), a spring sheet (53) fixedly connected to the limit plate (52), and a support member (54) fixedly connected to the limit plate (52); The limiting plate (52) is L-shaped and its bending part is hinged to the edge of the second plug plate (4) near the second bayonet (41); one end of the spring sheet (53) is fixed to the inner wall of the right-angle opening of the limiting plate (52); and one end of the support member (54) is fixed to the outer wall of the opening of the limiting plate (52) away from the spring sheet (53).

7. The UV-visible spectrophotometer according to claim 6, characterized in that: The spring sheet (53) is arc-shaped, and the arc-shaped opening faces the right-angle opening of the limiting plate (52).

8. The UV-visible spectrophotometer according to claim 7, characterized in that: The spring sheets (53) are provided in two pieces.

9. A UV-visible spectrophotometer according to any one of claims 6 to 8, characterized in that: The supporting member (54) is a spring.

10. The UV-visible spectrophotometer according to claim 9, characterized in that: Two support members (54) are provided.

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