Fluorescence spectrometer convenient for rapidly replacing light source

Abstract

The fluorescence spectrophotometer comprises a spectrophotometer body, a light inlet is formed in the top of the spectrophotometer body, a device box is fixedly connected to the top of the spectrophotometer body, and a rotating plate is rotationally connected to the middle of the top of the inner wall of the device box through a rotating shaft. According to the utility model, the driving mechanism drives the rotating plate and various different types of light sources mounted at the bottom of the rotating plate to synchronously rotate, so that the positions of the plurality of light sources are rotationally adjusted, and the positions of the light sources required to be used are adjusted to be opposite to the light inlets, so that the light sources can be quickly replaced without dismounting the light sources; operation is extremely easy and convenient, practicability is high, two sets of light sources are arranged for each type, the two sets of light sources of the same type can be used in a switching mode, work and stop in turn are achieved, and the situation that a single light source works for a long time and is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fluorescence spectrometers, in particular to a fluorescence spectrometer which is convenient for quickly replacing a light source. Background Art

[0002] Atomic fluorescence spectrometer is a method to determine the content of the element to be measured by measuring the fluorescence emission intensity produced by the atomic vapor of the element to be measured under the excitation of radiation energy. After the substance absorbs electromagnetic radiation, it is excited, and the excited atoms or molecules are deactivated by radiation, and then emit radiation with a wavelength that is the same or different from the wavelength of the exciting radiation.

[0003] For example, the Chinese patent with the authorization announcement number CN218157553U discloses a vertically distributed atomic fluorescence spectrometer, which relates to the field of atomic fluorescence spectrometers. In view of the fact that the current atomic fluorescence spectrometers are usually arranged horizontally, although this arrangement can distribute the light beam well, the volume occupied by the single atomic fluorescence spectrometer is too large, which is not convenient for its placement and installation. Now, the following scheme is proposed, which includes a box, the top of the box is provided with a light source mechanism extending inward, the inside of the box is provided with a first slit mechanism, and the bottom of the first slit mechanism is provided with a monochromator, and the bottom of the monochromator is provided with a detector. The vertically distributed atomic fluorescence spectrometer is vertically distributed to form an atomic fluorescence spectrometer, which reduces the footprint of the device, and the light source mechanism provided inside the device facilitates the rapid replacement of the hollow cathode lamp.

[0004] When the above-mentioned atomic fluorescence spectrometer is in use, if the light source needs to be replaced, it can only be replaced by disassembly and assembly. When replacing, the light source needs to be disconnected from the spectrometer body first, and then the light source is removed from the spectrometer. Then, the light source that needs to be replaced is installed on the spectrometer and electrically connected to the spectrometer. The operation process is relatively cumbersome, time-consuming and labor-intensive, and its replacement efficiency is not good. In addition, there is only a single light source in the above-mentioned spectrometer. When conducting large-scale testing, the light source needs to work for a long time, which is easy to cause damage, affecting the service life of the light source, and needs to be improved. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a fluorescence spectrometer which is convenient for quickly replacing the light source.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fluorescence spectrometer which is convenient for quickly replacing a light source, comprising a spectrometer body, a light inlet is opened on the top of the spectrometer body, a device box is fixedly connected to the top of the spectrometer body, a rotating plate is rotatably connected to the middle position of the top of the inner wall of the device box through a rotating shaft, a plurality of electrical connection seats are fixedly installed on the bottom of the rotating plate, a plurality of light sources of different models are electrically plugged on the electrical connection seats, and two groups of light sources of each model are provided, a driving mechanism for driving the rotating shaft to rotate is also provided on the device box, and a fixing mechanism is provided at the bottom of the rotating plate and at a position corresponding to each light source.

[0007] As a further description of the above technical solution:

[0008] The plurality of electrical connection sockets are distributed in a circular array with the axis of the rotating shaft as the center.

[0009] As a further description of the above technical solution:

[0010] The light source is a hollow cathode lamp.

[0011] As a further description of the above technical solution:

[0012] The driving mechanism comprises a driving motor fixedly mounted on the top of the device box, the output end of the driving motor is fixedly connected with a driving shaft, the bottom end of the driving shaft is fixedly connected with a driving gear, and the outer surface of the driving gear is meshed with a driven gear.

[0013] As a further description of the above technical solution:

[0014] The driven gear is fixedly sleeved on the outer surface of the rotating shaft.

[0015] As a further description of the above technical solution:

[0016] The fixing mechanism includes a U-shaped frame fixedly installed at the bottom of the rotating plate, a guide rod is fixedly connected to the inner wall of the U-shaped frame, and a bidirectional threaded rod is rotatably connected to the inner wall of the U-shaped frame, and the outer surface of the bidirectional threaded rod is threadedly connected to two threaded blocks, and the two threaded blocks are movably mounted on the guide rod.

[0017] As a further description of the above technical solution:

[0018] A connection block is fixedly connected to one side of the two threaded blocks close to the electrical connection seat, an arc-shaped clamping plate is fixedly connected to the connection block, and a rubber pad is fixedly connected to the inner wall of the arc-shaped clamping plate.

[0019] As a further description of the above technical solution:

[0020] A control panel is fixedly mounted on the front of the spectrometer body.

[0021] The utility model has the following beneficial effects:

[0022] 1. Compared with the prior art, the fluorescence spectrometer which is convenient for quickly replacing light sources starts the driving motor through the control panel to drive the rotating shaft to rotate, and then drives the driving gear to rotate, and drives the driven gear meshing therewith to rotate, and then drives the rotating plate and the various types of light sources installed at the bottom of the rotating plate to rotate synchronously, so as to rotationally adjust the positions of multiple light sources, and adjust the position of the light source to be used to be opposite to the light inlet, so as to complete the rapid replacement of the light source, without disassembling and assembling the light source, the operation is extremely simple and convenient, and the practicability is strong, and each type of light source is provided with two groups, and the two groups of light sources of the same type can be used in a switchable manner to realize working and stopping in turns, so as to avoid damage to a single light source due to long-term operation.

[0023] 2. Compared with the prior art, the fluorescence spectrometer which is convenient for quick replacement of the light source, by rotating the handle counterclockwise, drives the two arc-shaped clamping plates to move to the opposite side, and then clamps the light source by the two arc-shaped clamping plates to prevent the light source from loosening or falling off, and improves the stability of the connection between the light source and the electrical connection socket. The provision of the rubber pad can increase the friction between the arc-shaped clamping plate and the light source, improve the stability of clamping the light source, and the rubber pad can play a buffering role to prevent the arc-shaped clamping plate from rigidly clamping the light source and causing damage to the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a fluorescence spectrometer that is convenient for rapid replacement of light sources proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of a device box of a fluorescence spectrometer that is convenient for rapid replacement of light sources proposed by the utility model;

[0026] Figure 3 This is a cross-sectional view of a device box of a fluorescence spectrometer that is convenient for rapid replacement of light sources proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of a light source and a U-shaped frame of a fluorescence spectrometer that is convenient for rapid replacement of the light source, which is proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of an electrical connection base and a rotating plate of a fluorescence spectrometer that is convenient for rapid replacement of light sources proposed by the utility model;

[0029] Figure 6 The utility model is a schematic diagram of a fixing mechanism of a fluorescence spectrometer which is convenient for quickly replacing a light source.

[0030] Legend:

[0031] 1. Spectrometer body; 2. Light inlet; 3. Device box; 4. Rotating shaft; 5. Rotating plate; 6. Electrical connection socket; 7. Light source; 8. Driving motor; 9. Driving shaft; 10. Driving gear; 11. Driven gear; 12. U-shaped frame; 13. Guide rod; 14. Bidirectional threaded rod; 15. Threaded block; 16. Connecting block; 17. Arc clamping plate; 18. Rubber pad; 19. Control panel; 20. Turn handle. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-6 The utility model provides a fluorescence spectrometer that is convenient for quickly replacing light sources: it includes a spectrometer body 1 (the spectrometer body 1 adopts the existing technology, and its specific structure and working principle are not elaborated here. Please refer to the Chinese patent with the authorized announcement number CN218157553U and the name of a vertically distributed atomic fluorescence spectrometer), a light inlet 2 is opened on the top of the spectrometer body 1, a device box 3 is fixedly connected to the top of the spectrometer body 1, a rotating plate 5 is rotatably connected to the middle position of the top of the inner wall of the device box 3 through a rotating shaft 4, and a plurality of electrical connection seats 6 are fixedly installed on the bottom of the rotating plate 5. A plurality of different types of light sources 7 are electrically plugged into a plurality of electrical connection sockets 6 (at least two hollow cathode lamps of nickel, chromium, lead, calcium and copper are installed according to the use requirements for switching during use). The light source 7 is a hollow cathode lamp, and two groups of each type of light source 7 are provided. Two groups of light sources 7 of the same type can be used in a switchable manner to realize working and resting in turns, thereby preventing a single light source 7 from being damaged due to long-term operation. A driving mechanism for driving the rotating shaft 4 to rotate is also provided on the device box 3, and a fixing mechanism is provided at the bottom of the rotating plate 5 and at a position corresponding to each light source 7.

[0034] A plurality of electrical connection sockets 6 are distributed in a circular array around the axis of the rotating shaft 4 .

[0035] The driving mechanism includes a driving motor 8 fixedly mounted on the top of the device box 3, the output end of the driving motor 8 is fixedly connected to a driving shaft 9, the bottom end of the driving shaft 9 is fixedly connected to a driving gear 10, the outer surface of the driving gear 10 is meshed with a driven gear 11, and the driven gear 11 is fixedly sleeved on the outer surface of the rotating shaft 4;

[0036] In actual application, by starting the driving motor 8, the rotating shaft 4 is driven to rotate, and then the driving gear 10 is driven to rotate, and the driven gear 11 meshing therewith is driven to rotate, and then the rotating plate 5 and the various different types of light sources 7 installed at the bottom of the rotating plate 5 are driven to rotate synchronously, so that the positions of the multiple light sources 7 are rotationally adjusted, and the position of the light source 7 to be used is adjusted to be opposite to the light inlet 2, so that the light source 7 can be quickly replaced without disassembling and assembling the light source 7. The operation is extremely simple and convenient, and the practicability is strong. Two groups of light sources 7 of each type are provided, and the two groups of light sources 7 of the same type can be used in a switchable manner to realize taking turns to work and rest, thereby avoiding damage to a single light source 7 due to long-term operation.

[0037] The fixing mechanism includes a U-shaped frame 12 fixedly mounted on the bottom of the rotating plate 5, a guide rod 13 is fixedly connected to the inner wall of the U-shaped frame 12, and a bidirectional threaded rod 14 is also rotatably connected to the inner wall of the U-shaped frame 12, and the outer surface of the bidirectional threaded rod 14 is threadedly connected to two threaded blocks 15, and the two threaded blocks 15 are movably sleeved on the guide rod 13, and one end of the bidirectional threaded rod 14 is fixedly connected to a rotating handle 20, and the two threaded blocks 15 are fixedly connected to a connection block 16 on one side close to the electrical connection seat 6, and an arc-shaped clamping plate 17 is fixedly connected to the connection block 16, and a rubber pad 18 is fixedly connected to the inner wall of the arc-shaped clamping plate 17;

[0038] In actual application, by rotating the handle 20 counterclockwise, the two arc-shaped clamps 17 are driven to move to the opposite side, and then the light source 7 is clamped and fixed by the two arc-shaped clamps 17 to prevent the light source 7 from loosening or falling off, thereby improving the stability of the connection between the light source 7 and the electrical connection socket 6. The provision of the rubber pad 18 can increase the friction between the arc-shaped clamp 17 and the light source 7, thereby improving the stability of clamping and fixing the light source 7, and the rubber pad 18 can play a buffering role to prevent the arc-shaped clamp 17 from rigidly clamping the light source 7 and causing damage to the light source 7.

[0039] A control panel 19 is fixedly mounted on the front of the spectrometer body 1 , and the control panel 19 is electrically connected to the driving motor 8 .

[0040] Working principle: During use, when it is necessary to replace the light source 7 installed on the rotating plate 5, the bidirectional threaded rod 14 is driven to rotate by turning the handle 20 clockwise, and then the threaded block 15 is limited by the guide rod 13, so that the threaded block 15 moves toward the side away from the axis of the bidirectional threaded rod 14, and then the arc clamping plate 17 is driven to move toward the side away from the light source 7 through the connecting block 16, so as to release the limit fixation of the light source 7, and then the user holds the light source 7 and gently moves it downward to unplug the light source 7 from the electrical connection seat 6 (that is, to release the electrical connection with the electrical connection seat 6), and then replaces the light source 7 to be installed. After being plugged into the electrical connection base 6 (i.e., electrically connected to the electrical connection base 6), the handle 20 is then rotated counterclockwise to drive the two arc-shaped clamping plates 17 to move to the opposite side, and then the light source 7 is clamped and fixed by the two arc-shaped clamping plates 17 to prevent the light source 7 from loosening or falling off, thereby improving the stability of the connection between the light source 7 and the electrical connection base 6. The friction between the arc-shaped clamping plates 17 and the light source 7 can be increased by setting the rubber pad 18, thereby improving the stability of clamping and fixing the light source 7, and the rubber pad 18 can play a buffering role to prevent the arc-shaped clamping plates 17 from rigidly clamping the light source 7, thereby causing damage to the light source 7;

[0041] When using the spectrometer body 1, the various types of light sources 7 installed on the rotating plate 5 make it convenient for the user to rotate and switch the light sources 7 without removing the light sources 7. The driving motor 8 is started through the control panel 19 to drive the rotating shaft 4 to rotate, thereby driving the driving gear 10 to rotate, and driving the driven gear 11 meshing therewith to rotate, thereby driving the rotating plate 5 and the various types of light sources 7 installed at the bottom of the rotating plate 5 to rotate synchronously, thereby rotating and adjusting the positions of the multiple light sources 7, and adjusting the position of the light source 7 to be used to be opposite to the light inlet 2, so as to complete the rapid replacement of the light source 7.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fluorescence spectrometer that is convenient for quickly replacing a light source, comprising a spectrometer body (1), wherein a light inlet (2) is provided at the top of the spectrometer body (1), and characterized in that: The top of the spectrometer body (1) is fixedly connected to a device box (3), and a rotating plate (5) is rotatably connected to the middle position of the top of the inner wall of the device box (3) via a rotating shaft (4). A plurality of electrical connection sockets (6) are fixedly installed at the bottom of the rotating plate (5), and a plurality of different types of light sources (7) are electrically plugged into the plurality of electrical connection sockets (6), and two groups of each type of light source (7) are provided. A driving mechanism for driving the rotating shaft (4) to rotate is also provided on the device box (3), and a fixing mechanism is provided at the bottom of the rotating plate (5) and at a position corresponding to each light source (7).

2. A fluorescence spectrometer that facilitates rapid replacement of light sources according to claim 1, characterized in that: The plurality of electrical connection sockets (6) are distributed in a circular array with the axis of the rotating shaft (4) as the center.

3. The fluorescence spectrometer for facilitating rapid replacement of light sources according to claim 1, characterized in that: The light source (7) is a hollow cathode lamp.

4. A fluorescence spectrometer that facilitates rapid replacement of light sources according to claim 1, characterized in that: The driving mechanism comprises a driving motor (8) fixedly mounted on the top of the device box (3); the output end of the driving motor (8) is fixedly connected to a driving shaft (9); the bottom end of the driving shaft (9) is fixedly connected to a driving gear (10); and the outer surface of the driving gear (10) is meshed with a driven gear (11).

5. A fluorescence spectrometer that facilitates rapid replacement of light sources according to claim 4, characterized in that: The driven gear (11) is fixedly sleeved on the outer surface of the rotating shaft (4).

6. The fluorescence spectrometer for facilitating rapid replacement of light sources according to claim 1, characterized in that: The fixing mechanism comprises a U-shaped frame (12) fixedly mounted on the bottom of the rotating plate (5); a guide rod (13) is fixedly connected to the inner wall of the U-shaped frame (12); a bidirectional threaded rod (14) is also rotatably connected to the inner wall of the U-shaped frame (12); two threaded blocks (15) are threadedly connected to the outer surface of the bidirectional threaded rod (14); the two threaded blocks (15) are movably sleeved on the guide rod (13); and a rotating handle (20) is fixedly connected to one end of the bidirectional threaded rod (14).

7. A fluorescence spectrometer that facilitates rapid replacement of light sources according to claim 6, characterized in that: The two threaded blocks (15) are fixedly connected to a connection block (16) on one side close to the electrical connection seat (6), the connection block (16) is fixedly connected to an arc-shaped clamping plate (17), and a rubber pad (18) is fixedly connected to the inner wall of the arc-shaped clamping plate (17).

8. The fluorescence spectrometer for facilitating rapid replacement of light sources according to claim 7, characterized in that: A control panel (19) is fixedly mounted on the front side of the spectrometer body (1).

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