An illuminating device for chemical analysis

Abstract

This utility model relates to the field of chemical analysis technology and discloses an illumination device for chemical analysis, including a base, a column at the top of the base, a mounting frame on the outside of the column, two support plates at both ends of the mounting frame, and titration clamps at the ends of the two support plates. The illumination component includes a storage groove on one side of the mounting frame, a fixing frame at one end of the storage groove, an extension plate on one side of the fixing frame, a sleeve on the inner side of the extension plate, and sliding grooves at both ends of the sleeve, with lamps installed inside the two sliding grooves. Gears are provided on the inner wall of the extension plate, and connecting frames are provided on one side of the two lamps, with racks on the inner wall of the connecting frames. This utility model, by folding and storing the illumination lamp inside the titration rack, can be unfolded in poor lighting conditions to illuminate the scale of the burette, facilitating observation of the titration endpoint color and titration volume in milliliters, ensuring data accuracy.

Description

Technical Field

[0001] This utility model relates to the field of chemical analysis technology, specifically to a lighting device for chemical analysis. Background Technology

[0002] Chemical titration analysis is a quantitative analytical method. It involves adding a reagent solution of known and accurate concentration (called a standard solution) dropwise to a solution of the analyte until the added reagent and the analyte react completely according to stoichiometry. The content of the analyte is then calculated based on the concentration of the standard solution and the volume consumed.

[0003] Since titration analysis relies on the color change of the indicator to determine the endpoint, appropriate lighting conditions can ensure the contrast of the indicator's color change and ensure accurate endpoint determination. However, during titration analysis, poor ambient lighting conditions (such as cloudy days or evenings) may occur, making it difficult to distinguish color changes during observation and leading to deviations in the determination of the titration endpoint. Summary of the Invention

[0004] The purpose of this invention is to provide a lighting device for chemical analysis to solve the problem mentioned in the background art where poor ambient lighting conditions occur during titration analysis, such as on weekends. As a result, the operator's sensitivity to distinguishing changes in indicator color is reduced during titration analysis, leading to inaccurate judgment and deviations in the determination of the titration endpoint.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lighting device for chemical analysis, comprising a base, a column at the top of the base, a mounting frame outside the column, two support plates at both ends of the mounting frame, titration clamps at the ends of the two support plates, and an lighting component for supplementing light during titration analysis inside the mounting frame. The lighting component includes a storage groove on one side of the mounting frame, a fixing frame at one end inside the storage groove, an extension plate on one side of the fixing frame, a sleeve inside the extension plate, sliding grooves at both ends of the sleeve, and lamp tubes inside the two sliding grooves.

[0006] The inner wall of the extension plate is provided with gears, and each of the two lamp tubes is provided with a connecting frame on one side, and the inner wall of the connecting frame is provided with a rack.

[0007] Preferably, one end of the column is connected to the base and placed perpendicular to the base, and the mounting bracket is sleeved on the outside of the column and tightened and fixed to the column by bolts.

[0008] Preferably, one of the support plates on one side of the mounting frame is a split structure and is rotatably connected to the mounting frame via a spring shaft, and the titration clamp is connected to the end of the support plate.

[0009] Preferably, the fixed frame is located inside the storage groove and is a two-section telescopic structure that can extend out of the storage groove. One end of the extension plate is rotatably connected to the fixed frame via a damping shaft.

[0010] Preferably, the sleeve is located inside the extension plate and is rotatably connected to the inner wall of the extension plate via a damping shaft, and one end of the lamp tube is located in the slide groove and is slidably connected to the inner wall of the slide groove.

[0011] Preferably, the gear is coaxially connected to the inner wall of the extension plate, the gear extends into the sleeve, the connecting frame is close to the gear side of the lamp tube in the slide groove, and the rack is connected to the inner wall of the connecting frame by bolts and abuts and meshes with the gear.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The lamp tubes used for supplemental lighting can be installed using the extension plate and sleeve. In the normal state, the lamp tubes can be stored inside the mounting frame by rotating the extension plate to avoid obstruction during titration analysis. When the ambient lighting conditions are poor, the lamp tubes can be folded and unfolded by rotating the extension plate and the fixed frame to provide illumination during titration analysis. At the same time, since the extension plate has a damping feel when rotating, it can be stopped at will to meet the needs of lighting at different angles, ensuring the comparison effect of the indicator during titration analysis and ensuring the accuracy of the comparison.

[0014] 2. By installing gears inside the extension plate and attaching connecting brackets to the outer wall of the lamp tube, when the lamp tube and the extension plate rotate, the gears mesh with the rack on the inner wall of the connecting bracket, thereby pushing the lamp tube to slide out inside the sleeve. This allows the lamp tube to be partially stored in the normal state, reducing the area occupied, and to be unfolded when in use to improve the lighting effect.

[0015] This invention folds and stores the lighting lamp inside the titration holder, allowing it to be unfolded and illuminated on the burette scale when lighting conditions are poor. This facilitates observation of the titration endpoint color and the titration volume in milliliters, ensuring data accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall isometric view of the present invention;

[0018] Figure 2 This is a structural diagram of the extension plate and sleeve of this utility model.

[0019] Figure 3 This is a structural diagram of the sleeve and lamp tube near the gear of this utility model;

[0020] Figure 4 This is an enlarged view of part A of this utility model.

[0021] In the diagram: 1. Base; 2. Column; 3. Mounting bracket; 301. Support plate; 302. Titration clamp; 4. Storage slot; 5. Fixing frame; 501. Extension plate; 6. Gear; 7. Sleeve; 701. Slide groove; 8. Lamp tube; 801. Connecting bracket; 802. Rack. Detailed Implementation

[0022] To make the technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention:

[0023] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.

[0024] like Figure 1-3 The illustrated illumination device for chemical analysis includes a base 1, a column 2 on top of the base 1, and a mounting frame 3 on the outside of the column 2 for connecting and installing a support plate 301 and a titration clamp 302 to the column 2. Two support plates 301 are provided at both ends of the mounting frame 3. One of the support plates 301 can be folded by a spring shaft and, in conjunction with the titration clamp 302, can clamp and fix a burette. Titration clamps 302 are provided at the ends of both support plates 301. An illumination component for supplemental lighting during titration analysis is provided inside the mounting frame 3. The illumination component includes a storage slot 4 on one side of the mounting frame 3 for adjusting the illumination during normal operation. The lamp tube 8 is stored in a storage compartment 4. A fixed frame 5 is provided at one end of the storage compartment 4. The fixed frame 5 can be extended and retracted so that when the lamp tube 8 is extended, the extension plate 501 can be rotated and folded to one side of the mounting bracket 3. An extension plate 501 is provided on one side of the fixed frame 5. The extension plate 501 can be connected to the sleeve 7 and position the sleeve 7. The sleeve 7 is provided inside the extension plate 501, which can store part of the lamp tube 8, reduce the space occupied by storage, and position and limit the angle of the lamp tube 8. Both ends of the sleeve 7 are provided with sliding grooves 701. The lamp tube 8 is provided inside both sliding grooves 701. The lamp tube 8 can produce light after being powered on and improve the illumination during titration analysis.

[0025] Furthermore, one end of the column 2 is connected to the base 1 and placed vertically to the base 1. The mounting bracket 3 is sleeved on the outside of the column 2 and tightened and fixed to the column 2 by bolts. One of the support plates 301 on one side of the mounting bracket 3 is a split structure and is rotatably connected to the mounting bracket 3 by a spring shaft. The titration clamp 302 is connected to the end of the support plate 301. The fixing frame 5 is located in the storage groove 4 and is a two-section telescopic structure that can extend out of the storage groove 4. One end of the extension plate 501 is rotatably connected to the fixing frame 5 by a damping shaft. The sleeve 7 is located inside the extension plate 501 and is rotatably connected to the inner wall of the extension plate 501 by a damping shaft. One end of the lamp tube 8 is located in the slide groove 701 and is slidably connected to the inner wall of the slide groove 701.

[0026] In this embodiment: when the lighting conditions of the external environment decrease, the extension plate 501 can be pulled to cooperate with the fixed frame 5 to make the extension plate 501 rotate and extend out of the storage slot 4 and be placed in the required lighting area. Then, the sleeve 7 is rotated to adjust the angle of the lamp tube 8 to be vertical, and the position of the lamp tube 8 is changed by rotating the extension plate 501 and the fixed frame 5. The lamp tube 8 is then energized to produce light and improve the lighting during titration analysis to ensure the accuracy of the data.

[0027] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 3-4 The inner wall of the extension plate 501 is provided with a gear 6, which meshes with the rack 802 in the external connecting frame 801 of the lamp tube 8. The connecting frame 801 is provided on one side of each of the two lamp tubes 8, installed on the outside of the lamp tube 8, and can provide auxiliary positioning when the lamp tube 8 slides. The inner wall of the connecting frame 801 is provided with a rack 802. When the sleeve 7 rotates, since the angle of the gear 6 remains unchanged, the rack 802 meshes with the gear 6, which can push the connecting frame 801 to slide in the slide groove 701. The sliding direction of the connecting frame 801 can be adjusted by the rotation direction of the sleeve 7.

[0028] Furthermore, gear 6 is coaxially connected to the inner wall of extension plate 501, gear 6 extends into the sleeve 7, connecting frame 801 and lamp tube 8 are close to the side of gear 6 in slide groove 701, rack 802 is connected to the inner wall of connecting frame 801 by bolts and abuts and meshes with gear 6.

[0029] In this embodiment: when the sleeve 7 and the extension plate 501 rotate to adjust the angle of the lamp tube 8, the rack 802 on the inner wall of the lamp tube 8 external connecting frame 801 meshes with the gear 6 extending into the sleeve 7. The gear 6 rotates relative to the sleeve 7, so the rack 802 pushes the connecting frame 801 to slide in the slide groove 701, and drives the lamp tube 8 to slide and extend synchronously in the slide groove 701. Thus, when the sleeve 7 is vertical, the lamp tube 8 extends out of the sleeve 7, improving the intensity of the lighting effect. When the sleeve 7 and the extension plate 501 are parallel and need to be stored, one end of the lamp tube 8 is driven to retract into the sleeve 7 for easy folding and storage.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lighting device for chemical analysis, comprising a base (1), a column (2) disposed on the top of the base (1), a mounting frame (3) disposed on the outside of the column (2), two support plates (301) disposed at both ends of the mounting frame (3), titration clamps (302) disposed at the ends of the two support plates (301), and an lighting component for supplementing light during titration analysis disposed inside the mounting frame (3), characterized in that: The lighting assembly includes a storage slot (4) disposed on one side of the mounting bracket (3). A fixing frame (5) is disposed at one end of the storage slot (4). An extension plate (501) is disposed on one side of the fixing frame (5). A sleeve (7) is disposed inside the extension plate (501). A sliding groove (701) is disposed at both ends of the sleeve (7). A lamp tube (8) is disposed inside both sliding grooves (701). The inner wall of the extension plate (501) is provided with a gear (6), and a connecting frame (801) is provided on one side of each of the two lamp tubes (8). The inner wall of the connecting frame (801) is provided with a rack (802).

2. The illumination device for chemical analysis according to claim 1, characterized in that: One end of the column (2) is connected to the base (1) and is placed perpendicular to the base (1). The mounting bracket (3) is sleeved on the outside of the column (2) and is tightened and fixed to the column (2) by bolts.

3. The illumination device for chemical analysis according to claim 1, characterized in that: One of the support plates (301) on one side of the mounting bracket (3) is a split structure and is rotatably connected to the mounting bracket (3) via a spring shaft. The titration clamp (302) is connected to the end of the support plate (301).

4. The illumination device for chemical analysis according to claim 1, characterized in that: The fixed frame (5) is located inside the storage groove (4) and consists of two retractable structures that extend out of the storage groove (4). One end of the extension plate (501) is rotatably connected to the fixed frame (5) via a damping shaft.

5. A lighting device for chemical analysis according to claim 1, characterized in that: The sleeve (7) is located inside the extension plate (501) and is rotatably connected to the inner wall of the extension plate (501) through a damping shaft. One end of the lamp tube (8) is located in the groove (701) and is slidably connected to the inner wall of the groove (701).

6. The illumination device for chemical analysis according to claim 1, characterized in that: The gear (6) is coaxially connected to the inner wall of the extension plate (501), the gear (6) extends into the sleeve (7), the connecting frame (801) and the lamp tube (8) are close to the gear (6) side of the slide groove (701), the rack (802) is connected to the inner wall of the connecting frame (801) by bolts, and abuts and meshes with the gear (6).

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