Ultraviolet spectrophotometer for laboratory

Abstract

The utility model discloses an ultraviolet spectrophotometer for a laboratory, which comprises an equipment main body, a base arranged at the top of the equipment main body, a slot arranged on the surface of one side of the base, a drawing plate arranged on the inner side of the slot, a bottom plate arranged on the lower part of the inner side of the drawing plate, a fixing piece arranged on one side of the bottom plate far away from the drawing plate, and clamping rods arranged at two ends of the fixing piece, a suspended plate is arranged on the upper side of the bottom plate, and one end of the suspended plate is inserted into the inner side surface of the drawing plate. By arranging the drawing plate, the bottom plate and the suspension plate, different cuvettes, test tubes and other appliances for loading sample solutions can be placed after the side surface structure is pulled out, and are arranged according to the number plates, so that a batch of solutions or the whole solutions needing to be injected into the cuvettes can be treated at a time, repeated operation of a user is not needed, and the cost is reduced. Particularly, when a single cuvette is required to be detected for multiple times, the cuvette can be placed at a suspended plate at any time, so that the operation of a user in an experiment process is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment, and in particular to a laboratory ultraviolet spectrophotometer. Background Technology

[0002] An ultraviolet spectrophotometer is an analytical instrument based on the principle of ultraviolet-visible spectrophotometry, utilizing the absorption of radiation by molecules in the ultraviolet-visible spectral region for analysis. It mainly consists of a light source, monochromator, absorption cell, detector, and signal processor. Operation primarily includes: powering on and preheating the light source until stable; setting the detection wavelength and scanning parameters; injecting blank solvent into a matched cuvette to calibrate the baseline; replacing the sample solution; placing the sample in the sample chamber to measure the absorbance; repeating the measurement and taking the average; processing the data; turning off the instrument; cleaning the cuvette and stage; recording the usage; and disconnecting the power.

[0003] Therefore, in repetitive measurement procedures, because multiple sample solutions need to be injected into different cuvettes, users need to repeatedly operate on the same test tube solution or multiple test tube solutions, as well as multiple cuvettes. Not only is the order easily confused, but users also need to repeatedly confirm the numbers on the cuvettes or test tubes, leading to reduced experimental efficiency and a complex workflow. Therefore, to address the above problems, a laboratory ultraviolet spectrophotometer is provided. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a laboratory ultraviolet spectrophotometer, which mainly solves the technical problem of the complexity of repeated operations in the continuous measurement process.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model relates to a laboratory ultraviolet spectrophotometer, comprising a main body, a base on the top of the main body, a slot on one side surface of the base, a pull-out plate inside the slot, a bottom plate on the lower inner side of the pull-out plate, a fixing member on the side of the bottom plate away from the pull-out plate, clamping rods on both ends of the fixing member, a suspension plate on the upper side of the bottom plate, one end of the suspension plate being inserted into the inner surface of the pull-out plate, and the other end of the suspension plate being clamped and fixed by the clamping rods and the fixing member, a square groove on the surface of the suspension plate, a number plate on the front side of the square groove, and a circular groove on the surface of the bottom plate, the side length of the square groove being greater than the radial length of the circular groove, and the vertical positions of the square groove and the circular groove corresponding.

[0007] Preferably, the upper middle part of the pull-out plate is provided with a fastening block, and the fastening block and the base are connected by a ball-and-socket fastener.

[0008] Preferably, the base plate has slides on both sides, and the base plate and the inner wall of the slot are slidably connected.

[0009] Preferably, a movable head is installed at the left end of the clamping rod, a limit rod is installed at the bottom of the movable head, and a buckle block is provided at the bottom of the other end of the clamping rod. The fixing member is configured with an H-shaped structure, wherein a left column is provided at the left end of the fixing member, and an insertion hole is provided inside the left column, and the shape and position of the insertion hole and the limit rod are corresponding; a right column is installed at the right end of the fixing member, and a buckle groove is provided at the upper part of the right column, and the shape and position of the buckle block and the buckle groove are corresponding.

[0010] Preferably, the buckle groove and buckle block are buckled together, and the limiting rod and the insertion hole are inserted together.

[0011] Preferably, the fixing member is further provided with a crossbar in the middle, the suspended plate is installed on the surface of the crossbar, the surface of the crossbar and the suspended plate are provided with an upper connecting groove, the surface of the bottom plate is provided with a lower connecting groove, and the upper connecting groove and the lower connecting groove are located on the same vertical line.

[0012] Preferably, the cross-sections of the clamping rod and the movable head are both square, and the shapes of the upper connecting groove and the lower connecting groove are the same as those of the clamping rod.

[0013] Preferably, an extension shaft is mounted on the end surface of the clamping rod, and a circular protrusion is provided in the middle of the four sides of the end of the clamping rod. A connecting hole is provided in the middle of the surface of the movable head near the extension shaft, and a circular groove is provided in the middle of the four sides of the end of the movable head. The circular groove and the circular protrusion are corresponding in shape, and the extension shaft is connected to the connecting hole.

[0014] Preferably, the movable head and the limiting rod are fixedly connected, and the clamping rod and the buckle block are fixedly connected; a telescopic spring shaft is installed inside the extension shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features a pull-out plate, a base plate, and a suspension plate, allowing different cuvettes and test tubes containing sample solutions to be placed after the side structure is pulled out and arranged according to numbered tags. This enables a batch or the entire solution to be injected into the cuvette to be processed at once, eliminating the need for repeated operations by the user. This is especially convenient when multiple tests are required on a single cuvette, as it can be placed on the suspension plate at any time, making it easier for the user to operate during the experimental process. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the base plate structure of this utility model;

[0020] Figure 3 This is an exploded view of the clamping rod structure of this utility model;

[0021] Figure 4 This is a front view of the movable head structure of this utility model;

[0022] In the diagram: 1. Main body of the equipment; 101. Base; 2. Slot; 201. Pull-out plate; 202. Base plate; 203. Circular groove; 204. Fastening block; 205. Slide rail; 206. Lower connecting groove; 3. Fixing component; 301. Left column; 302. Insertion hole; 303. Right column; 304. Snap-on groove; 305. Crossbar; 307. Upper connecting groove; 4. Clamping rod; 401. Snap-on block; 402. Extension shaft; 403. Circular protrusion; 5. Suspension plate; 501. Square groove; 502. Number plate; 6. Movable head; 601. Limiting rod; 602. Connecting hole; 603. Circular groove; 7. Telescopic spring shaft. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] In the attached diagram, all identical reference numerals refer to the same components.

[0025] Example 1

[0026] like Figure 1-2 As shown, this utility model provides a laboratory ultraviolet spectrophotometer, including a main body 1. The top of the main body 1 is provided with a base 101. A groove 2 is provided on one side surface of the base 101. A pull-out plate 201 is provided on the inner side of the groove 2. A base plate 202 is installed on the lower inner side of the pull-out plate 201. A fixing member 3 is provided on the side of the base plate 202 away from the pull-out plate 201. Clamping rods 4 are installed at both ends of the fixing member 3. A suspension plate 5 is provided on the upper side of the base plate 202. One end of the suspension plate 5 is inserted into the inner surface of the pull-out plate 201. The other end of the suspension plate 5 is clamped and fixed by the clamping rods 4 and the fixing member 3. A square groove 501 is provided on the surface of the suspension plate 5. A number plate 502 is provided on the front side of the square groove 501. A circular groove 203 is provided on the surface of the base plate 202. The side length of the square groove 501 is greater than the radial length of the circular groove 203, and the vertical positions of the square groove 501 and the circular groove 203 correspond.

[0027] In its conventional practical process, the liquid is usually drawn into the cuvette and then placed inside the equipment for processing. Since there are typically four cuvette placement slots, the operator needs to repeat the process four times before proceeding to the next step. Therefore, a slot 2 and a pull-out plate 201 are provided at the base 101. Pulling out the pull-out plate 201 exposes the inner suspended plate 5 and the base plate 202. The square slot 501 at the upper suspended plate 5 can hold cuvettes of different orientations. Because the circular slot 203 at the base plate 202 is smaller than the square slot 501, the cuvettes are lowered... The solution can be supported by the base plate 202; other solution carriers, such as test tubes, can also pass through the square groove 501. Therefore, the staff can directly insert the test tubes downwards into the circular groove 203 of the base plate 202 and let them fall onto the table to form a limit. At this point, the staff can operate on multiple test tubes and cuvettes in a unified manner. For example, test tubes with non-toxic solutions can be arranged in the order of the numbering tags 502, and cuvettes can be placed on the other side. At this time, the solution in the test tubes can be directly transferred to the cuvettes. Finally, they can be placed into the main body 1 of the equipment in batches to complete the next step of the operation.

[0028] A snap-fit ​​block 204 is provided on the upper middle side of the pull-out plate 201. The snap-fit ​​block 204 and the base 101 are connected by a ball-and-socket snap-fit, so that the pull-out plate 201 can be closed into the base 101 after being pushed up. When the main body of the equipment 1 is preheated, it can receive a certain amount of heat conduction from the bottom to the top, thereby increasing the temperature of the base plate 202 and the suspended plate 5 and avoiding the solution from accelerating stratification due to excessively low temperature. When opening, it can be pulled out as a whole from the pull opening on the surface of the pull-out plate 201.

[0029] The base plate 202 has slides 205 on both sides, and the base plate 202 and the inner wall of the slot 2 are slidably connected; so that the overall structure is mainly based on the base plate 202 structure to pull outward to form a drawer-like structure.

[0030] A movable head 6 is installed at the left end of the clamping rod 4, and a limit rod 601 is installed at the bottom of the movable head 6. A buckle block 401 is provided at the bottom of the other end of the clamping rod 4. The fixing member 3 is set with an H-shaped structure. The left end of the fixing member 3 is provided with a left column 301. The left column 301 has an insertion hole 302 inside, and the shape and position of the insertion hole 302 and the limit rod 601 are corresponding. The right end of the fixing member 3 is provided with a right column 303. The upper part of the right column 303 is provided with a buckle groove 304. The shape and position of the buckle block 401 and the buckle groove 304 are corresponding. This allows the suspended plate 5 to be disassembled. When disassembly is required, only the upper clamping rod 4 needs to be removed, and the suspended plate 5 can be taken out separately.

[0031] The buckle groove 304 and the buckle block 401 are buckled together, and the limit rod 601 and the insertion hole 302 are inserted together; so that the clamping rod 4 can be installed at both ends of the fixing member 3 to form a clamping and fixing effect on the suspended plate 5.

[0032] Working principle: The overall structure is mainly located on the side surface of the base 101. After the user pulls out the pull plate 201 based on the slide 205, the inner suspension plate 5 and the base plate 202 will be exposed. The user can then place multiple test tubes or cuvettes in different compartments and classify them by batch according to the different colored number tags 502. The test tubes can pass through the circular groove 203. Because there is a gap between the base plate 202 and the bottom of the pull plate 201, the bottom of the test tube can be placed on the table while the middle is horizontally limited by the circular groove 203. Or, larger test tubes can be placed with their bottoms overlapping the circular groove 203 and their tops fixed by the square groove 501. At this time, the user can operate a cuvette individually or operate multiple cuvettes in batches in sequence and then put them into the device in sequence, thereby increasing the detection efficiency and eliminating the need to repeatedly check whether the numbers of the test tubes and cuvettes are correct.

[0033] Meanwhile, when the entire device needs cleaning, the clamping rod 4 and the fixing part 3 can be disassembled so that the suspended plate 5 can be removed from the pull plate 201 for separate cleaning. At the same time, the bottom plate 202 can be directly removed from the inside of the slot 2 based on the slide 205, so that the bottom plate 202 can also be cleaned or repaired separately. This makes it easy to clean and maintain the surfaces of the upper and lower plates after they are contaminated.

[0034] Example 2

[0035] The difference from Example 1 is that, as Figure 2-4 As shown, the middle part of the fixing member 3 is also provided with a crossbar 305, the suspended plate 5 is installed on the surface of the crossbar 305, the surface of the crossbar 305 and the suspended plate 5 are both provided with an upper connecting groove 307, the surface of the bottom plate 202 is provided with a lower connecting groove 206, and the upper connecting groove 307 and the lower connecting groove 206 are located on the same vertical line.

[0036] Both the clamping rod 4 and the movable head 6 have square cross-sections, and the upper connecting groove 307 and the lower connecting groove 206 have the same shape as the clamping rod 4.

[0037] An extension shaft 402 is mounted on the end surface of the clamping rod 4. A circular protrusion 403 is provided in the middle of the four sides of the end of the clamping rod 4. A connecting hole 602 is provided in the middle of the end surface of the movable head 6 near the extension shaft 402. A circular groove 603 is provided in the middle of the four sides of the end of the movable head 6. The circular groove 603 and the circular protrusion 403 correspond in shape. The extension shaft 402 is connected to the connecting hole 602.

[0038] The movable head 6 and the limiting rod 601 are fixedly connected, and the clamping rod 4 and the buckle block 401 are fixedly connected; the extension shaft 402 is equipped with a telescopic spring shaft 7.

[0039] Specifically, the clamping rod 4 can also be used as a fixing structure. One side of the clamping rod 4's latching block 401 can be inserted from the upper connecting groove 307 to the lower connecting groove 206. After insertion, the interference fit between the clamping rod 4 and the upper connecting groove 307 can create a horizontal compression fixing effect on the suspended plate 5 with the pull-out plate 201. When the clamping rod 4 is placed vertically, its telescopic head is located at the top. Because the opening and closing cover of the main body 1 is near the edge, such as... Figure 1 On the left side of the display screen, because the limiting rod 601 can be inserted into the socket 302 or directly through the left column 301 to extend its length, the length of the limiting rod 601 exceeds the distance between the opening and closing cover and the edge. Therefore, when the opening and closing cover is opened, the movable head 6 can be pulled up and rotated 90 degrees based on the extension shaft 402. Then the telescopic spring shaft 7 pulls the movable head 6 back again so that the circular protrusion 403 aligns with the circular groove 603. At this time, the limiting rod 601 will lock the position of the opening and closing cover. Therefore, the opening and closing cover will always remain open when the movable head 6 is not turned back, so that the clamping rod 4 can avoid the opening and closing cover closing due to gravity due to accidental contact.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A laboratory ultraviolet spectrophotometer, comprising a main body (1), wherein a base (101) is provided on the top of the main body (1), characterized in that, The base (101) has a slot (2) on one side surface, and a pull-out plate (201) is provided inside the slot (2). A base plate (202) is installed on the lower part of the inner side of the pull-out plate (201). A fixing member (3) is provided on the side of the base plate (202) away from the pull-out plate (201). Clamping rods (4) are installed at both ends of the fixing member (3). A suspension plate (5) is provided on the upper side of the base plate (202). One end of the suspension plate (5) is inserted into the pull-out plate (201). On the inner surface, the other end of the suspended plate (5) is clamped and fixed by the clamping rod (4) and the fixing member (3). The surface of the suspended plate (5) is provided with a square groove (501). The front side of the square groove (501) is provided with a number plate (502). The surface of the bottom plate (202) is provided with a circular groove (203). The side length of the square groove (501) is greater than the radial length of the circular groove (203), and the vertical positions of the square groove (501) and the circular groove (203) correspond.

2. The laboratory ultraviolet spectrophotometer according to claim 1, characterized in that, The upper middle side of the pull-out plate (201) is provided with a fastening block (204), and the fastening block (204) and the base (101) are connected by a ball-and-socket snap or a magnetic connection.

3. The laboratory ultraviolet spectrophotometer according to claim 1, characterized in that, The base plate (202) is provided with slide rails (205) on both sides, and the base plate (202) and the inner wall of the slot (2) are slidably connected.

4. A laboratory ultraviolet spectrophotometer according to claim 1, characterized in that, The left end of the clamping rod (4) is equipped with a movable head (6), the bottom of the movable head (6) is equipped with a limiting rod (601), the bottom of the other end of the clamping rod (4) is provided with a buckle block (401), the fixing member (3) is set with an H-shaped structure, wherein the left end of the fixing member (3) is provided with a left column (301), the inside of the left column (301) is provided with an insertion hole (302), and the shape and position of the insertion hole (302) and the limiting rod (601) are corresponding; the right end of the fixing member (3) is equipped with a right column (303), the upper part of the right column (303) is provided with a buckle groove (304), and the shape and position of the buckle block (401) and the buckle groove (304) are corresponding.

5. A laboratory ultraviolet spectrophotometer according to claim 4, characterized in that, The buckle groove (304) and buckle block (401) are buckle connected, and the limit rod (601) and the insertion hole (302) are insertion connected.

6. A laboratory ultraviolet spectrophotometer according to claim 4, characterized in that, The middle part of the fixing member (3) is also provided with a crossbar (305), the suspended plate (5) is installed on the surface of the crossbar (305), the surface of the crossbar (305) and the surface of the suspended plate (5) are both provided with an upper connecting groove (307), the surface of the bottom plate (202) is provided with a lower connecting groove (206), and the upper connecting groove (307) and the lower connecting groove (206) are located on the same vertical line.

7. A laboratory ultraviolet spectrophotometer according to claim 6, characterized in that, The cross-sections of the clamping rod (4) and the movable head (6) are both square, and the shapes of the upper connecting groove (307) and the lower connecting groove (206) are the same as those of the clamping rod (4).

8. A laboratory ultraviolet spectrophotometer according to claim 7, characterized in that, An extension shaft (402) is mounted on the end surface of the clamping rod (4). A circular protrusion (403) is provided in the middle of the four sides of the end of the clamping rod (4). A connecting hole (602) is provided in the middle of the end surface of the movable head (6) near the extension shaft (402). A circular groove (603) is provided in the middle of the four sides of the end of the movable head (6). The circular groove (603) and the circular protrusion (403) correspond in shape. The extension shaft (402) is connected to the connecting hole (602).

9. A laboratory ultraviolet spectrophotometer according to claim 8, characterized in that, The movable head (6) and the limiting rod (601) are fixedly connected, and the clamping rod (4) and the buckle block (401) are fixedly connected; a telescopic spring shaft (7) is installed inside the extension shaft (402), and the length of the clamping rod (4) is higher than the overall height of the main body of the equipment (1).

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