A handheld high intensity fluorescence spectrometer

Abstract

The utility model relates to the technical field of fluorescence spectrometer discloses a handheld high strength fluorescence spectrometer, including the spectrometer body, spectrometer body one side is provided with display screen, spectrometer body other side is fixedly connected with the shell, the shell one side is fixedly connected with the fixed frame, the fixed frame inside is provided with the detection head, the spectrometer body bottom is fixedly connected with the support frame, the support frame inside is fixedly connected with the fixed column, the fixed column outer wall is rotatably connected with the rotating ring, the rotating ring bottom is fixedly connected with the handle, the support frame inside is provided with the folding limiting component. In the utility model, through the sliding handle drive rotating ring along the fixed column sliding, make spring one be compressed, realize the unlocking of folding limiting component, thereby reached the effect that the instrument storage space was optimized, solved the problem that the traditional instrument could not fold because of handle and led to the demand of storage space big, improved the convenience of instrument storage and transportation.

Description

Technical Field

[0001] This utility model relates to the field of fluorescence spectrometer technology, and in particular to a handheld high-intensity fluorescence spectrometer. Background Technology

[0002] Handheld high-intensity fluorescence spectrometers are precision analytical instruments widely used in environmental monitoring, food safety, and biomedicine. They qualitatively or quantitatively analyze the composition of substances by detecting the fluorescence signals emitted by excited samples. With the increasing demand for on-site testing, portability and efficiency have become the core development directions for this type of instrument. Although traditional handheld fluorescence spectrometers are lightweight, there is still room for optimization in their structural design, especially the fixed design of mechanical structures such as the handle and light-shielding components. This leads to problems such as large space occupation and insufficient adaptability when transporting, storing, or using the instrument in confined environments. Therefore, how to further improve the compactness and operational flexibility of the instrument through structural innovation has become the focus of current technological improvements.

[0003] Existing handheld fluorescence spectrometers typically employ a rigid grip and a fixed light shield design. The grip is directly connected to the main frame by bolts or welding to ensure grip stability, while the light shield is mostly a cylindrical structure of fixed length, fixed to the periphery of the detection head by threads or clips to shield against external stray light interference.

[0004] A prominent problem with existing technologies is that the handle cannot be folded, resulting in excessive space occupation during instrument storage and transportation. Since the handle is usually a straight rod or L-shaped rigid structure that extends at a fixed angle to the main body, a large space needs to be reserved when packing or carrying it to avoid collision damage. This not only increases logistics costs but also limits storage efficiency in confined spaces such as laboratory lockers or outdoor backpacks. In addition, the fixed handle is prone to deformation due to external impacts during transportation, which further affects the reliability and service life of the instrument. Therefore, a handheld high-intensity fluorescence spectrometer is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a handheld high-intensity fluorescence spectrometer, which aims to improve the problem that the handle cannot be folded in the prior art, resulting in excessive space occupation during instrument storage and transportation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A handheld high-intensity fluorescence spectrometer includes a spectrometer body, a display screen on one side of the spectrometer body, a housing fixedly connected to the other side of the spectrometer body, a fixed frame fixedly connected to one side of the housing, a detection head disposed inside the fixed frame, a support frame fixedly connected to the bottom of the spectrometer body, a fixed column fixedly connected inside the support frame, a rotating ring rotatably connected to the outer wall of the fixed column, a handle fixedly connected to the bottom of the rotating ring, and a folding limiting component disposed inside the support frame. The folding limiting component includes a second retaining ring, the side wall of which is fixedly connected to the inner wall of the support frame. The side wall of the rotating ring is fixedly connected to a first retaining ring, which is engaged with the second retaining ring. A first spring is sleeved on the outer wall of the fixing column, one end of which is fixedly connected to the inner wall of the support frame. A telescopic light-shielding component is provided inside the fixing frame.

[0007] As a further description of the above technical solution: The telescopic light-shielding assembly includes a light-shielding cover and a handle. The light-shielding cover is slidably connected inside the fixed frame, and the bottom of the handle is fixedly connected to the top of the light-shielding cover. A groove is provided inside the light-shielding cover.

[0008] As a further description of the above technical solution: A hollow frame is fixedly connected to the top of the fixed frame, and a sliding column is slidably connected inside the hollow frame.

[0009] As a further description of the above technical solution: A locking post is fixedly connected to the bottom of the sliding post, and the locking post engages with the groove.

[0010] As a further description of the above technical solution: The sliding column is slidably connected inside the fixed frame, and the locking column is slidably connected inside the fixed frame.

[0011] As a further description of the above technical solution: A pull ring is fixedly connected to the top of the sliding column, and a fixing plate is fixedly connected to the outer wall of the sliding column.

[0012] As a further description of the above technical solution: A second spring is fitted on the outer wall of the sliding column. One end of the second spring is fixedly connected to the inside of the hollow frame, and the other end of the second spring is fixedly connected to the top of the fixed plate.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the sliding handle drives the rotating ring to slide along the fixed column, which compresses the spring and causes the retaining ring to disengage from the retaining ring, thus unlocking the folding limit component. Then, by rotating the handle, the rotating ring rotates around the fixed column, folding the handle and storing it in the support frame. This significantly reduces the overall space occupied by the instrument, thereby optimizing the storage space and solving the problem of large storage space requirements caused by the inability to fold the handle in traditional instruments. This improves the convenience of instrument storage and transportation.

[0014] 2. In this utility model, pulling the handle causes the light shield to slide inside the fixed frame. The sliding of the light shield changes the position of the groove. Then, when it is necessary to fix the light shield, pulling the pull ring causes the sliding column to slide within the hollow frame and the fixed frame. The sliding column causes the locking column to move. When the locking column engages with the groove, the light shield is fixed. Spring 2 provides power for the sliding column to reset, thereby allowing the light state of the detection head to be flexibly adjusted according to the needs, thus improving the detection accuracy, solving the problem of external light interference during detection, and improving the accuracy of instrument detection. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a handheld high-intensity fluorescence spectrometer proposed in this utility model; Figure 2 This is a schematic diagram of the rotating ring structure of a handheld high-intensity fluorescence spectrometer proposed in this utility model; Figure 3 This is a schematic diagram of the fixed frame structure of a handheld high-intensity fluorescence spectrometer proposed in this utility model; Figure 4 This is an exploded structural diagram of the light shield of a handheld high-intensity fluorescence spectrometer proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0016] Legend: 1. Spectrometer body; 2. Display screen; 3. Support frame; 4. Outer shell; 5. Fixing frame; 6. Fixing post; 7. Rotating ring; 8. Clamping ring one; 9. Clamping ring two; 10. Handle; 11. Spring one; 12. Detection head; 13. Light shield; 14. Groove; 15. Handle; 16. Hollow frame; 17. Pull ring; 18. Sliding post; 19. Spring two; 20. Fixing plate; 21. Clamping post. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1-5 This utility model provides an embodiment of a handheld high-intensity fluorescence spectrometer, comprising a spectrometer body 1, a display screen 2 on one side of the spectrometer body 1 for displaying detection data and an operation interface, a housing 4 fixedly connected to the other side of the spectrometer body 1 for protecting internal optical and electronic components, a fixed frame 5 fixedly connected to one side of the housing 4 for installing and fixing a detection head 12, the detection head 12 being disposed inside the fixed frame 5 for emitting excitation light and receiving fluorescence signals, a support frame 3 fixedly connected to the bottom of the spectrometer body 1 for providing structural support and accommodating a folding mechanism, a fixed column 6 fixedly connected inside the support frame 3 as the rotation axis of a rotating ring 7, a rotating ring 7 being rotatably connected to the outer wall of the fixed column 6 for driving a handle 10 to rotate and fold, a handle 10 fixedly connected to the bottom of the rotating ring 7 for easy handheld operation by the user, and a folding limit component disposed inside the support frame 3 for locking or releasing the folded state of the handle 10; The folding limiting assembly includes a second retaining ring 9, the side wall of which is fixedly connected to the inner wall of the support frame 3 to provide a locking and positioning surface. A first retaining ring 8 is fixedly connected to the side wall of the rotating ring 7 to cooperate with the second retaining ring 9 to fix the handle 10. The first retaining ring 8 and the second retaining ring 9 are engaged to ensure the stability of the handle 10 in the unfolded state. A first spring 11 is sleeved on the outer wall of the fixing post 6 to provide a restoring elastic force to keep the first retaining ring 8 and the second retaining ring 9 engaged. One end of the first spring 11 is fixedly connected to the inner wall of the support frame 3 to limit the displacement of the first spring 11. A telescopic light-shielding assembly is provided inside the fixing frame 5 to adjust the light-shielding range to reduce external light interference.

[0019] Reference Figures 1-5The telescopic light-shielding assembly includes a light-shielding cover 13 and a handle 15. The light-shielding cover 13 is slidably connected inside the fixed frame 5 to adjust the light-shielding range to adapt to different detection environments. The bottom of the handle 15 is fixedly connected to the top of the light-shielding cover 13 for the user to manually adjust the position of the light-shielding cover 13. A groove 14 is provided inside the light-shielding cover 13 for cooperating with the locking post 21 to fix the light-shielding cover 13. A hollow frame 16 is fixedly connected to the top of the fixed frame 5 to accommodate the sliding post 18 and provide guidance. The sliding post 18 is slidably connected inside the hollow frame 16 to drive the locking post 21 to move up and down. The bottom of the sliding post 18 is fixedly connected to the locking post 21 to engage with the groove 14 to fix the position of the light-shielding cover 13. The 14-phase engagement ensures the stability of the sunshade 13 during use. The sliding column 18 is slidably connected inside the fixed frame 5 to ensure the accuracy of the movement trajectory. The locking column 21 is slidably connected inside the fixed frame 5 to prevent displacement. A pull ring 17 is fixedly connected to the top of the sliding column 18 to facilitate the user's operation of raising and lowering the sliding column 18. A fixed plate 20 is fixedly connected to the outer wall of the sliding column 18 to limit the compression range of the second spring 19. The second spring 19 is sleeved on the outer wall of the sliding column 18 to provide a reset elastic force to keep the locking column 21 engaged with the groove 14. One end of the second spring 19 is fixedly connected inside the hollow frame 16 as a fixed fulcrum, and the other end of the second spring 19 is fixedly connected to the top of the fixed plate 20 to ensure effective transmission of elastic force.

[0020] Working principle: When the handle 10 needs to be folded, the operator slides the handle 10 laterally along the fixed post 6, causing the rotating ring 7 to move synchronously, compressing the spring 11, and causing the retaining ring 8 to disengage from the retaining ring 9, thus releasing the limit. Then, the user rotates the handle 10 around the fixed post 6, causing the rotating ring 7 to rotate and retract the handle 10 into the support frame 3. When unfolding the handle 10, the user rotates the handle 10 in the opposite direction, causing the rotating ring 7 to reset. The spring 11 rebounds and pushes the rotating ring 7 downwards, causing the retaining ring 8 to re-engage with the retaining ring 9, locking the handle 10 in position. When adjusting the sunshade 13, the operator pulls the handle 15 to slide the sunshade 13 within the fixed frame 5. When it reaches the target position, the operator pulls the pull ring 17 to move the sliding post 18 and the locking post 21 upward, compressing the second spring 19. After aligning the locking post 21 with the groove 14, the operator releases the pull ring 17. The second spring 19 rebounds and pushes the sliding post 18 and the locking post 21 downward, causing the locking post 21 to embed into the groove 14 and lock the position of the sunshade 13. To unlock, the operator pulls the pull ring 17 again to disengage the locking post 21 from the groove 14, thereby achieving the purpose of adjusting the position of the sliding sunshade 13.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A handheld high-intensity fluorescence spectrometer, comprising a spectrometer body (1), characterized in that: The spectrometer body (1) is provided with a display screen (2) on one side, and a shell (4) is fixedly connected to the other side of the spectrometer body (1). A fixed frame (5) is fixedly connected to one side of the shell (4). A detection head (12) is provided inside the fixed frame (5). A support frame (3) is fixedly connected to the bottom of the spectrometer body (1). A fixed column (6) is fixedly connected inside the support frame (3). A rotating ring (7) is rotatably connected to the outer wall of the fixed column (6). A handle (10) is fixedly connected to the bottom of the rotating ring (7). A folding limiting component is provided inside the support frame (3). The folding limiting component includes a second retaining ring (9), the side wall of which is fixedly connected to the inner wall of the support frame (3), the side wall of the rotating ring (7) is fixedly connected to a first retaining ring (8), the first retaining ring (8) is fitted with the second retaining ring (9), the outer wall of the fixing column (6) is fitted with a first spring (11), one end of the first spring (11) is fixedly connected to the inner wall of the support frame (3), and a telescopic light-blocking component is provided inside the fixing frame (5).

2. The handheld high-intensity fluorescence spectrometer according to claim 1, characterized in that: The telescopic light-shielding assembly includes a light-shielding cover (13) and a handle (15). The light-shielding cover (13) is slidably connected inside the fixed frame (5). The bottom of the handle (15) is fixedly connected to the top of the light-shielding cover (13). A groove (14) is provided inside the light-shielding cover (13).

3. A handheld high-intensity fluorescence spectrometer according to claim 2, characterized in that: The top of the fixed frame (5) is fixedly connected to a hollow frame (16), and a sliding column (18) is slidably connected inside the hollow frame (16).

4. A handheld high-intensity fluorescence spectrometer according to claim 3, characterized in that: The bottom of the sliding column (18) is fixedly connected to a locking post (21), which engages with the groove (14).

5. A handheld high-intensity fluorescence spectrometer according to claim 4, characterized in that: The sliding column (18) is slidably connected inside the fixed frame (5), and the locking column (21) is slidably connected inside the fixed frame (5).

6. A handheld high-intensity fluorescence spectrometer according to claim 5, characterized in that: A pull ring (17) is fixedly connected to the top of the sliding column (18), and a fixed plate (20) is fixedly connected to the outer wall of the sliding column (18).

7. A handheld high-intensity fluorescence spectrometer according to claim 6, characterized in that: The outer wall of the sliding column (18) is fitted with a second spring (19). One end of the second spring (19) is fixedly connected to the inside of the hollow frame (16), and the other end of the second spring (19) is fixedly connected to the top of the fixed plate (20).

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