Handheld water quality analysis device

Abstract

The utility model discloses a handheld water quality analysis device, which belongs to the technical field of water quality detection and comprises a base, a mainboard, a battery, a light source system, a detection system and a shell, the light source system is connected with the detection system through an optical fiber, so that an optical filter is connected with a linear screw motor sliding table to screen light sources with different wavelengths; a cuvette groove in a colorimetric seat of the detection system is provided with an arc-shaped concave surface capable of accommodating a colorimetric tube; a display screen, a detection hole, a switch button and a detection bin cover are arranged on the shell, the colorimetric tube can be inserted into the cuvette groove by installing a rotating tube adapter in the detection hole, the wavelength of a light source is adjusted through the light source system, the detection system drives a linkage gear through a stepping motor to enable the colorimetric tube to rotate, and the colorimetric tube can be detected through 360-degree rotation of the cuvette groove. The effect that the cuvette and the colorimetric tube are respectively measured by one detection groove is achieved. The handheld analysis device disclosed by the utility model is simple to operate and convenient to use, and the processing cost is reduced while the internal structure is optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of water quality detection, and in particular relates to a handheld water quality analysis device. Background Art

[0002] In recent years, with the popularization of water quality measuring instruments, the instrument has developed from the earliest single cuvette colorimetry to cuvette colorimetry and colorimetric tube colorimetry. The patent with announcement number CN213689377U discloses an ultraviolet water quality analysis and measuring instrument that detects cuvettes and colorimetric tubes in the same optical path, which realizes the simultaneous detection of cuvettes and colorimetric tubes using the same light source optical path. The composite light emitted by the light source enters the spectroscopic mechanism, which outputs parallel monochromatic light of different wavelengths, and then is focused by the front focusing lens into the cuvette for absorption and then emitted. The emitted light passes through the rear focusing lens and the converging mirror to the photocell to receive the signal and perform data analysis. However, in actual use, there are the following problems: 1. The cuvette is unstable when moving, resulting in errors in the experimental results; 2. The colorimetric tube is easily scratched and worn during detection, resulting in errors in the experimental results. Utility Model Content

[0003] The utility model aims at the deficiencies of the prior art and provides a handheld water quality analysis device.

[0004] The utility model is realized by the following technical solutions:

[0005] A handheld water quality analysis device comprises a base, on which a mainboard, a battery, a light source system and a detection system are installed, the source system and the detection system are connected via an optical fiber for transmitting the light source; the source system is provided with an adjustable filter; the detection system is provided with a cuvette slot compatible with a colorimetric tube, an adapter mounting seat is provided above the cuvette slot, and a tube adapter for placing a colorimetric tube is installed on the adapter mounting seat; a shell is installed on the base, a detection hole is provided on the shell corresponding to the top of the adapter mounting seat, the shell is provided with a detection compartment cover covering the detection hole, and the shell is also provided with a display screen and a switch button.

[0006] Furthermore, the light source system includes a light source, which is equipped with a light source cap, a lens is provided in the light source cap, a filter disc is connected to one end of the light source cap, a filter is provided on the optical path of the filter disc, the filter is connected to a linear screw motor slide installed on the base below, an optical coupling plate for limiting is installed above the filter, the optical coupling plate is installed on a bracket, the bracket is installed on the base, and a lens seat with a semi-mirror is installed at the position of the bracket corresponding to the optical path.

[0007] Furthermore, the detection system includes a colorimetric stand installed on the base, a fiber optic fixing plate is installed on one side of the colorimetric stand, the fiber optic fixing plate is provided with a fiber optic stand, a fiber optic condenser and a fiber optic cap are installed on the fiber optic stand, the colorimetric cell slot is provided in the middle of the colorimetric stand along the light path, the adapter mounting seat is installed on the colorimetric stand and is located above the colorimetric cell slot, a photoelectric signal receiver is provided on the other side of the colorimetric stand along the light path, the photoelectric signal receiver is installed on the colorimetric stand through a photoelectric signal fixing seat, the colorimetric stand and the photoelectric signal fixing seat are provided with through holes along the light path, and the groove surface in the middle of the colorimetric cell slot is provided with an arc-shaped concave surface capable of accommodating the colorimetric tube.

[0008] Furthermore, the adapter mounting seat provided on the colorimetric base is a rotating tube gear, the rotating tube gear is linked to the motor gear, the motor gear is connected to the stepping motor, the stepping motor is provided with a motor bracket for limiting and fixing, and the motor bracket is installed on the base.

[0009] Furthermore, the inner side wall of the rotating tube adapter is provided with three elastic polytetrafluoroethylene rubber rings with angles of 120° to each other.

[0010] Furthermore, the battery is a storage battery, and the housing is provided with a charging interface connected to the battery.

[0011] Furthermore, the housing is provided with an electrode connector for connecting electrodes, and the electrode connector is connected to the main board.

[0012] Furthermore, a USB interface is provided on the shell, and the USB interface is connected to the mainboard.

[0013] Furthermore, the device is provided with a camera.

[0014] Furthermore, the device is provided with a Bluetooth function module and a Bluetooth printer.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a handheld water quality analysis device that can directly detect a cuvette, or detect a colorimetric tube by installing a tube transfer adapter, thereby realizing rapid switching between two different types of sample detections. One detection position can measure both the cuvette and the colorimetric tube, and the colorimetric tube can be rotated 360° for detection, thereby optimizing the internal structure and reducing the processing cost. The linear screw motor slide and the stepper motor are controlled by a display screen to realize an automated detection process, which is easy to operate. The detection process can be recorded in real time and the detection data can be saved by the display screen and the camera, which is convenient for subsequent data processing and analysis. An electrode connector is added to connect the optical electrode to detect the concentration of each substance in the water; a Bluetooth module and a Bluetooth printer are added to print the analysis results on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 This is a structural exploded view of the handheld analysis device of the utility model;

[0019] Figure 2 It is a left side view of the light source system of the utility model;

[0020] Figure 3 It is a rear view of the detection system of the utility model;

[0021] Figure 4 This is an exploded view of the structural components of the light source system of the utility model;

[0022] Figure 5 This is an exploded view of the structural components of the detection system of the utility model;

[0023] Figure 6 This is the principle diagram of the utility model;

[0024] In the figure: 1-base, 2-detection hole, 3-detection compartment cover, 4-battery, 5-mainboard, 6-housing, 7-electrode connector, 8-switch button, 9-LCD screen, 10-tube conversion head, 11-USB interface, 12-charging interface, 13-camera, 14-light source, 15-lens, 16-light source cap, 17-filter disc, 18-filter, 19-linear screw motor slide, 20-optical coupling plate, 21-semi-mirror, 22-lens seat, 23-bracket, 24-optical fiber fixing plate, 25-optical fiber seat, 26-optical fiber condenser, 27-optical fiber cap, 28-progressive motor, 29-motor bracket, 30-motor gear, 31-tube gear, 32-colorimetric seat, 33-photoelectric signal fixing seat, 34-photoelectric signal receiver, 35-optical fiber. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] The utility model discloses an embodiment of a handheld water quality analysis device, such as Figure 1-5 As shown, it includes a base 1 and a shell 6. A mainboard 5, a battery 4, a light source system and a detection system are installed on the base 1. The battery 4 provides power for the entire device. The mainboard 5 integrates electronic components and functional modules for realizing data processing and control functions. A display screen 9 and a switch button 8 are provided on the shell 6. The display screen 9 is connected to the mainboard 5.

[0027] Light source system such as Figure 4 As shown, the light source 14 includes a light source cap 16 installed therein, a lens 15 is arranged inside the light source cap 16, a filter disc 17 is connected to one end of the light source cap 16, a filter disc 17 is arranged on the optical path of the filter disc 17, the filter disc 17 is connected to a linear screw motor slide 19 installed below on the base 1, an optical coupling plate 20 for limiting is installed above the filter 18, the optical coupling plate 20 is installed on a bracket 23, the bracket 23 is installed on the base 1, and a lens holder 22 with a semi-mirror 21 is installed at a position of the bracket 23 corresponding to the optical path.

[0028] Detection system such as Figure 5 As shown, it includes a colorimetric seat 32 installed on the base 1, a fiber fixing plate 24 is installed on one side of the colorimetric seat 32, the fiber fixing plate 24 is provided with a fiber seat 25, a fiber condenser 26 and a fiber cap 27 are installed on the fiber seat 25, a colorimetric cell groove is provided in the middle of the colorimetric seat 32 along the light path, an adapter mounting seat is installed on the colorimetric seat 32 and is located above the colorimetric cell groove, a photoelectric signal receiver 34 is provided on the other side of the colorimetric seat 32 along the light path, the photoelectric signal receiver 34 is installed on the colorimetric seat 32 through a photoelectric signal fixing seat 33, the colorimetric seat 32 and the photoelectric signal fixing seat 33 are provided with through holes along the light path, and the groove surface in the middle of the colorimetric cell groove is provided with an arc-shaped concave surface capable of accommodating a colorimetric tube.

[0029] The lens holder 22 is connected to the optical fiber holder 25 via the optical fiber 35, and transmits the light source from the light source system to the detection system.

[0030] A detection hole 2 is provided on the housing 6 corresponding to the upper side of the adapter mounting seat, and the housing 6 is provided with a detection compartment cover 3 covering the detection hole 2 .

[0031] The cuvette slot is compatible with colorimetric tubes. When using the cuvette for detection, the light source system is controlled by the display screen 9 to select a light source suitable for the wavelength of the cuvette, the cuvette is placed in the cuvette slot, the detection chamber cover 3 is closed, and the detection result is read through the display screen 9; when using the colorimetric tube for detection, the transfer tube adapter 10 is installed on the adapter mounting seat, and the colorimetric tube is placed in the transfer tube adapter 10 so that the bottom of the colorimetric tube is located in the arc-shaped concave surface of the cuvette slot. The transfer tube adapter 10 prevents the colorimetric tube from being scratched and damaged. The light source suitable for the wavelength of the colorimetric tube is selected through the display screen 9, and the detection result is read through the display screen 9.

[0032] In order to further improve the detection effect of the colorimetric tube, the adapter mounting seat provided on the colorimetric seat 32 adopts a tube rotating gear 31, which is linked with a motor gear 30, and the motor gear 30 is connected with a stepper motor 28. The stepper motor 28 is provided with a motor bracket 29 for limiting and fixing, and the motor bracket 29 is installed on the base 1. The tube rotating gear 31 is driven by the linkage of the stepper motor 28 and the motor gear 30 to realize 360° rotation detection of the colorimetric tube.

[0033] In order to further reduce the scratches and wear of the colorimetric tube, the inner side wall of the tube adapter 10 is provided with three elastic polytetrafluoroethylene rubber rings with an angle of 120° to each other, which can effectively protect and reduce the colorimetric tube and stabilize the concentricity of the colorimetric tube.

[0034] Furthermore, the battery 4 is a storage battery, and the housing 6 is provided with a charging interface 12 connected to the battery 4 .

[0035] Furthermore, the housing 6 is provided with an electrode connector 7 for connecting electrodes and a USB interface 11. The optical electrode is connected via the electrode connector 7 to detect the concentration of various substances in water, and data is transmitted with a computer or a mobile phone via the USB interface.

[0036] Furthermore, the device is provided with a camera 13, a Bluetooth function module and a Bluetooth printer. The camera 13 and the Bluetooth function module are connected to the main board 5. The sampling process and on-site environmental conditions are recorded through the camera 13, data is transmitted to a mobile phone or computer through the Bluetooth function, and the test results are printed on-site using the Bluetooth printer.

[0037] The working principle of this utility model:

[0038] like Figure 6 As shown, the light source 14 emits composite light which is focused by the lens 15 and enters the filter 18. The filter 18 filters the wavelength to realize the emission of specific light. The emitted specific light is focused by the semi-transparent mirror 21 and is transmitted by the optical fiber 35 to the optical fiber condenser 26 for focusing. Then the specific light is incident on the cuvette containing the solution to be tested. A part of the specific light is absorbed by the solution to be tested in the cuvette, and the remaining part of the light is incident on the photoelectric signal receiver 34 for data analysis.

[0039] When colorimetric tube detection is required, the operator installs the tube conversion head 10 in the detection hole 2, selects the colorimetric tube detection mode through the display screen 9, and the linear screw motor slide 19 drives the filter 18 to move to screen the wavelength of the detection colorimetric tube. After the colorimetric tube is inserted, the progressive electrode 28 drives the tube gear 31 through the motor gear 30 to rotate the colorimetric tube 360 ​​degrees, and the photoelectric signal receiver 34 receives the light waves transmitted through the colorimetric tube and analyzes the data.

[0040] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A handheld water quality analysis device, characterized in that: The invention comprises a base (1), on which a main board (5), a battery (4), a light source system and a detection system are mounted, wherein the source system and the detection system are connected via an optical fiber (35) for transmitting the light source; the source system is provided with an adjustable filter (18); the detection system is provided with a cuvette slot compatible with a colorimetric tube, an adapter mounting seat is provided above the cuvette slot, and a tube adapter (10) for placing a colorimetric tube is installed on the adapter mounting seat; the base (1) is provided with a housing (6), a detection hole (2) is provided on the housing (6) corresponding to the top of the adapter mounting seat, the housing (6) is provided with a detection compartment cover (3) covering the detection hole (2), and the housing (6) is also provided with a display screen (9) and a switch button (8).

2. A handheld water quality analysis device according to claim 1, characterized in that: The light source system comprises a light source (14), wherein the light source (14) is provided with a light source cap (16), wherein a lens (15) is provided in the light source cap (16), wherein one end of the light source cap (16) is connected to a filter disc (17), wherein a filter disc (18) is provided on the optical path of the filter disc (17), wherein the filter disc (17) is connected to a linear screw motor slide (19) installed below on the base (1), wherein an optical coupling plate (20) for limiting is installed above the filter disc (18), wherein the optical coupling plate (20) is installed on a bracket (23), wherein the bracket (23) is installed on the base (1), and wherein a lens holder (22) provided with a semi-mirror (21) is installed at a position of the bracket (23) corresponding to the optical path.

3. A handheld water quality analysis device according to claim 1, characterized in that: The detection system comprises a colorimetric seat (32) mounted on the base (1); a fiber fixing plate (24) is mounted on one side of the colorimetric seat (32); the fiber fixing plate (24) is provided with a fiber seat (25); a fiber condenser (26) and a fiber cap (27) are mounted on the fiber seat (25); the colorimetric cell slot is provided in the middle of the colorimetric seat (32) along the optical path; the adapter mounting seat is mounted on the colorimetric seat (32) and is located above the colorimetric cell slot; a photoelectric signal receiver (34) is provided on the other side of the colorimetric seat (32) along the optical path; the photoelectric signal receiver (34) is mounted on the colorimetric seat (32) via a photoelectric signal fixing seat (33); the colorimetric seat (32) and the photoelectric signal fixing seat (33) are provided with through holes along the optical path; and a groove surface in the middle of the colorimetric cell slot is provided with an arc-shaped concave surface capable of accommodating the colorimetric tube.

4. A handheld water quality analysis device according to claim 3, characterized in that: The adapter mounting seat provided on the colorimetric seat (32) is a tube rotating gear (31), the tube rotating gear (31) is linked with a motor gear (30), the motor gear (30) is connected with a stepping motor (28), the stepping motor (28) is provided with a motor bracket (29) for limiting and fixing, and the motor bracket (29) is mounted on the base (1).

5. A handheld water quality analysis device according to claim 1, characterized in that: The inner side wall of the rotating tube adapter (10) is provided with three elastic polytetrafluoroethylene rubber rings with angles of 120° to each other.

6. A handheld water quality analysis device according to claim 1, characterized in that: The battery (4) is a storage battery, and the housing (6) is provided with a charging interface (12) connected to the battery (4).

7. A handheld water quality analysis device according to claim 1, characterized in that: The housing (6) is provided with an electrode connector (7) for connecting electrodes, and the electrode connector (7) is connected to the main board (5).

8. A handheld water quality analysis device according to claim 1, characterized in that: The housing (6) is provided with a USB interface (11), and the USB interface (11) is connected to the mainboard (5).

9. A handheld water quality analysis device according to claim 1, characterized in that: The device is provided with a camera (13).

10. A handheld water quality analysis device according to claim 1, characterized in that: The device is provided with a Bluetooth function module and a Bluetooth printer.

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