Portable wastewater detector

Abstract

The utility model discloses a portable waste water detector which comprises a shell, the shell consists of an upper shell and a lower shell, and a colorimetric groove assembly is arranged on the lower shell. The colorimetric groove assembly comprises a sample pipe rotating disc, a connecting shaft is arranged on the sample pipe rotating disc, a plurality of sample holes are formed in the sample pipe rotating disc, arc-shaped elastic pieces are arranged on the inner walls of the sample holes, a first sleeve is arranged on the outer ring of the connecting shaft, a second sleeve is arranged on the outer ring of the first sleeve, an annular rotating channel is formed between the first sleeve and the second sleeve, and a lamp mounting channel is formed in one side wall of each sleeve. A colorimetric lamp is arranged in the lamp installation channel, a light channel is arranged on the second sleeve, and a photoelectric sensor is arranged in the light channel. A plurality of sample tubes can be placed on the sample tube rotating disc at a time through the sample tube rotating disc, a worker only needs to rotate the sample tube rotating disc to rotate the next sample tube to the corresponding position, then detection can be conducted again, the detection efficiency is high, the drying degree in the colorimetric groove assembly can be kept through the drying pieces, and the corrosion speed of the device assembly is reduced.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, specifically a portable wastewater detector. Background Technology

[0002] In today's society, the protection and management of water resources are of paramount importance. With rapid industrial development, accelerated urbanization, and continuous population growth, the amount of wastewater generated is also increasing dramatically. If wastewater is discharged directly without effective treatment, it will cause serious environmental pollution, disrupt the ecological balance, and endanger human health. Therefore, accurate and rapid wastewater testing has become a crucial aspect of environmental protection and management.

[0003] Traditional wastewater testing methods mainly include chemical analysis and instrumental analysis. While chemical analysis is less expensive, it is cumbersome, time-consuming, and requires a high level of expertise from the personnel. Instrumental analysis offers higher accuracy and sensitivity, but existing wastewater testing instruments still have some shortcomings in practical applications.

[0004] Currently, most colorimeters on the market can only hold one sample tube at a time. This design is extremely inefficient when dealing with large-scale wastewater testing tasks. Testing personnel need to place each sample tube into the colorimeter individually for testing and then record the results, a very time-consuming and labor-intensive process.

[0005] Furthermore, testing each sample tube individually is prone to human error. Frequent tube changes can lead to inaccurate results due to improper handling. Moreover, testing only one sample tube at a time limits throughput, making it impossible to process large volumes of wastewater samples in a short period.

[0006] With the continuous improvement of environmental protection requirements and the continuous development of testing technology, there is an urgent need for a wastewater colorimeter that can hold multiple sample tubes at once, in order to improve testing efficiency, reduce human error, and meet the needs of large-scale wastewater testing. Summary of the Invention

[0007] (1) Technical problems solved

[0008] The technical problem this invention aims to solve is that traditional colorimeters can only place one sample tube for testing at a time, resulting in low testing efficiency.

[0009] (2) Technical solution

[0010] To solve the above problems, this utility model provides the following technical solution:

[0011] A portable wastewater analyzer includes a housing, which is composed of an upper housing and a lower housing. The upper housing has a touch screen. The lower housing has a battery compartment and a colorimetric cell assembly.

[0012] The colorimetric cell assembly includes a sample tube turntable. A connecting shaft is located at the lower part of the sample tube turntable, and the lower end of the connecting shaft is connected to the lower outer shell via a bearing. The sample tube turntable is connected to the upper outer shell via a bearing, and the upper surface of the sample tube turntable is flush with the upper surface of the upper outer shell. The sample tube turntable has multiple sample holes, and each sample hole has multiple arc-shaped spring pieces arranged in a circumferential array on its inner wall. A first sleeve is provided around the outer ring of the connecting shaft, and a second sleeve is provided around the outer ring of the first sleeve. The first sleeve and the second sleeve form an annular rotation channel. The circumference of the channel is greater than the inner diameter of the sample hole. Each sample hole is located between the outer wall of the first sleeve and the inner wall of the second sleeve. A lamp mounting channel is provided on the side wall of the first sleeve. A colorimetric lamp is always provided in the lamp mounting channel. The colorimetric lamp is movably installed in the lamp mounting channel. A control circuit board is provided on the back side of the colorimetric lamp. The control circuit board is connected to the first sleeve by screws. A light channel is provided on the second sleeve. A photoelectric sensor is provided in the light channel. A control circuit board is provided on the back side of the photoelectric sensor. The control circuit board is installed on the second sleeve by screws.

[0013] Furthermore, a knob is fixedly provided at the center of the sample tube turntable, and the knob is coaxial with the connecting shaft.

[0014] Furthermore, the sleeve one is provided with multiple vent holes and a semi-annular insert cavity that runs vertically through the sleeve one on the side away from the photoelectric sensor, and the lower outer shell is also provided with a semi-annular through slit corresponding to the semi-annular insert cavity.

[0015] Furthermore, the lower outer shell is provided with a circular groove, a connecting piece is provided in the circular groove, a semi-circular slot is provided at the position corresponding to the semi-circular insert cavity, and a drying piece is movably provided in the semi-circular slot.

[0016] Furthermore, the connecting piece and the circular groove are connected by an interference fit, and the connecting piece is made of corrosion-resistant rubber. The lower end face of the connecting piece is provided with a pull-in groove, and a pull rod is provided in the pull-in groove. The pull rod is made of hard plastic.

[0017] Furthermore, multiple colorimetric lamps are provided and arranged in a vertical array, and each colorimetric lamp is electrically connected to the control circuit board.

[0018] Furthermore, the photoelectric sensor is electrically connected to the control circuit board.

[0019] Furthermore, the upper outer shell is also provided with a protective cover, which is connected to the upper outer shell via a hinge, and the protective cover is made of opaque plastic.

[0020] Furthermore, a processor is also provided on the back of the upper casing at the location of the touch screen, and the processor is electrically connected to both the first control circuit board and the second control circuit board.

[0021] (3) Beneficial effects

[0022] The beneficial effects of the utility model are:

[0023] The sample tube turntable allows multiple sample tubes to be placed on it at once. After one test is completed, the operator only needs to rotate the turntable to move the next sample tube to the corresponding position for another test. Compared with traditional equipment with only one sample chamber that requires frequent replacement of different sample tubes, this device has high testing efficiency, reduces waiting time and waste, and the drying plate can maintain the dryness of the colorimetric cell assembly to a certain extent, reducing the rate of corrosion of the device components. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the colorimeter cell assembly of this utility model. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the structure of the colorimeter cell assembly of this utility model. Figure 2 ;

[0028] Figure 5 This is a cross-sectional view of the present invention. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the structure of the collar of this utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the connecting piece of this utility model.

[0031] The markings in the diagram are: 1-outer shell, 2-touch screen, 3-battery compartment, 4-colorimeter slot assembly, 5-semi-circular through-slit, 6-circular groove, 7-connecting piece, 8-semi-circular slot, 9-drying plate, 10-plug groove, 11-pull rod, 12-protective cover, 13-processor;

[0032] 101 - Upper outer shell, 102 - Lower outer shell;

[0033] 401-Sample tube turntable, 402-Connecting shaft, 403-Sample hole, 404-Arc-shaped spring, 405-Sleeve 1, 406-Sleeve 2, 407-Rotation channel, 408-Lamp mounting channel, 409-Color matching lamp, 410-Control circuit board 1, 411-Light channel, 412-Photoelectric sensor, 413-Control circuit board 2, 414-Knob, 415-Ventilation hole, 416-Semi-annular insert cavity. Detailed Implementation

[0034] 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.

[0035] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Please see Figures 1-7 The portable wastewater detector shown includes a housing 1, which consists of an upper housing 101 and a lower housing 102. The upper housing 101 is equipped with a touch screen 2, and a processor 13 is also provided on the back of the upper housing 101. The touch screen 2 is used for displaying and operating the device, and the touch screen 2 is electrically connected to the processor 13. The touch screen 2 is operated by sending instructions to the corresponding components through the processor 13 for execution.

[0037] The lower outer casing 102 is provided with a battery compartment 3, which can be equipped with a rechargeable battery or multiple dry batteries to provide power to the entire detector. The lower outer casing 102 is also provided with a colorimetric cell assembly 4.

[0038] The colorimetric cell assembly 4 includes a sample tube turntable 401, which is circular in shape. To allow the sample tube turntable 401 to rotate, a connecting shaft 402 is provided at the lower part of the sample tube turntable 401. The lower end of the connecting shaft 402 is connected to the lower outer shell 102 via a bearing. The sample tube turntable 401 is connected to the upper outer shell 101 via a bearing. A knob 414 is fixedly located at the center of the sample tube turntable 401, and the upper end surface of the sample tube turntable 401 is flush with the upper end surface of the upper outer shell 101. By rotating the knob 414, the sample tube turntable 401 is driven, allowing the sample to be changed according to the detection progress.

[0039] The sample tube turntable 401 is provided with multiple sample holes 403 for placing the sample tubes to be tested. In order to increase the broadness of the sample holes 403, multiple arc-shaped spring pieces 404 are arranged in a circumferential array on the inner wall of each sample hole 403. When the outer diameter of the sample tube is much smaller than the inner diameter of the sample hole 403, the outer wall of the sample tube squeezes the arc-shaped spring pieces 404, so that the arc-shaped spring pieces 404 can abut against the outer wall of the sample tube, thereby fixing the sample tube.

[0040] The outer ring of the connecting shaft 402 is provided with a first sleeve 405, and the outer ring of the first sleeve 405 is provided with a second sleeve 406. The first sleeve 405 and the second sleeve 406 form an annular rotation channel 407. The annular channel 407 allows the sample tube to move without obstruction during rotation, ensuring that the sample tube can be rotated normally by the sample tube turntable 401.

[0041] In order to allow the sample tube to be installed properly, the circumference of the rotating channel 407 is larger than the inner diameter of the sample hole 403, and each sample hole 403 is located between the outer wall of sleeve one 405 and the inner wall of sleeve two 406.

[0042] In order to provide a detection light source for colorimetric testing, a lamp mounting channel 408 is provided on the side wall of sleeve 405. The lamp mounting channel 408 is equipped with a colorimetric lamp 409, and the light source emitted by the colorimetric lamp 409 is emitted outward through the lamp mounting channel 408.

[0043] The colorimeter lamp 409 is movably installed in the lamp installation channel 408, and a control circuit board 410 is provided on the back side of the colorimeter lamp 409. The control circuit board 410 is connected to the sleeve 405 by screws.

[0044] The light source emitted by the colorimetric lamp 409 requires a receiving end. A light channel 411 is provided on the second sleeve 406 for transmitting the light emitted by the colorimetric lamp 409. A photoelectric sensor 412 is provided in the light channel 411 for receiving the light from the colorimetric lamp 409 passing through the sample tube. A control circuit board 413 is provided on the back side of the photoelectric sensor 412. The control circuit board 413 is mounted on the second sleeve 406 by screws.

[0045] Specifically, the sleeve 405 is provided with multiple vent holes 415 and a semi-annular insert cavity 416 that runs vertically through the sleeve 405 on the side away from the photoelectric sensor 412. The lower outer shell 102 is also provided with a semi-annular through slot 5 corresponding to the semi-annular insert cavity 416.

[0046] The lower outer shell 102 is provided with a circular groove 6, a connecting piece 7 is provided in the circular groove 6, a semi-circular slot 8 is provided at the position corresponding to the semi-circular insert cavity 416, and a drying piece 9 is movably provided in the semi-circular slot 8.

[0047] In this embodiment, by setting a drying plate 9 and using the vent holes 415 to absorb moisture in the colorimetric cell assembly 4, the dryness inside the colorimetric cell assembly 4 is maintained, preventing the internal components of the colorimetric cell assembly 4 from being corroded.

[0048] Specifically, the connecting piece 7 and the circular groove 6 are connected by an interference fit, and the connecting piece 7 is made of corrosion-resistant rubber. The lower end face of the connecting piece 7 is provided with a pull-in groove 10, and a pull rod 11 is provided in the pull-in groove 10. The pull rod 11 is made of hard plastic.

[0049] In this embodiment, a connecting piece 7 that is easy to disassemble is provided to facilitate the replacement of the drying sheet 9. The connecting piece 7 can be pulled out by pinching the pull rod 11, thereby pulling the drying sheet set in the semi-annular slot 8 out from the lower part of the lower housing 102, which facilitates the replacement of the expired drying sheet 9.

[0050] Specifically, multiple colorimetric lamps 409 are provided and arranged in a vertical array. Each colorimetric lamp 409 is electrically connected to control circuit board one 410, and photoelectric sensor 412 is electrically connected to control circuit board two 413. Processor 13 is electrically connected to both control circuit board one 410 and control circuit board two 413.

[0051] In this embodiment, multiple colorimetric lamps 409 are provided, which can use the same type of lamp source or different types of lamp sources to adapt to the multi-parameter detection of wastewater.

[0052] Specifically, the upper outer casing 101 is also provided with a protective cover 12, which is connected to the upper outer casing 101 via a hinge, and the protective cover 12 is made of opaque plastic.

[0053] In this embodiment, the protective cover 12 serves a protective function, ensuring the accuracy of the test while preventing damage to the colorimetric cell assembly 4 and the sample tube.

[0054] Working principle: During the experiment, the operator places multiple sample tubes containing the liquid to be tested into the sample hole 403. Then, turning the knob 414 rotates the test tube turntable 401, positioning the sample tube to be tested at the corresponding position between the lamp mounting channel 408 and the photoelectric sensor 412. The protective cover 12 is then placed on top, and the testing program is started. The processor 13 sends a signal to the control circuit board 410, which transmits the signal to the colorimetric lamp 409. The colorimetric lamp 409 emits light, which passes through the sample tube and illuminates the photoelectric sensor 412 via the light channel. The photoelectric sensor 412 processes the received signal and transmits it to the processor 13 via the control circuit board 413. The processor 13 processes and analyzes the received signal and finally displays the test result on the touchscreen 2 for the operator to review. When the sample tube needs to be replaced, it is not necessary to remove the already tested sample tube before replacing it with a new one. Simply turn knob 414 to rotate the next sample tube to the detection position to complete the next detection.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A portable wastewater detector, comprising a housing (1), the housing (1) being composed of an upper housing (101) and a lower housing (102), wherein the upper housing (101) is provided with a touch screen (2), and the lower housing (102) is provided with a battery compartment (3), characterized in that: The lower outer shell (102) is also provided with a colorimetric groove assembly (4); The colorimetric cell assembly (4) includes a sample tube turntable (401). A connecting shaft (402) is provided at the lower part of the sample tube turntable (401). The lower end of the connecting shaft (402) is connected to the lower outer shell (102) via a bearing. The sample tube turntable (401) is connected to the upper outer shell (101) via a bearing, and the upper surface of the sample tube turntable (401) is flush with the upper surface of the upper outer shell (101). 1) The device has multiple sample holes (403), and each sample hole (403) has multiple arc-shaped spring pieces (404) arranged in a circumferential array on its inner wall. The connecting shaft (402) has a first sleeve (405) on its outer ring, and a second sleeve (406) on its outer ring. The first sleeve (405) and the second sleeve (406) form an annular rotating channel (407). The annular width is greater than the inner diameter of the sample hole (403). Each sample hole (403) is located between the outer wall of the first sleeve (405) and the inner wall of the second sleeve (406). A lamp mounting channel (408) is provided on the side wall of the first sleeve (405). The lamp mounting channel (408) is always provided with a colorimetric lamp (409). The colorimetric lamp (409) is movably arranged in the lamp mounting channel (408), and the colorimetric lamp (409) is... 9) has a control circuit board one (410) on its back side. The control circuit board one (410) is connected to the sleeve one (405) by screws. The sleeve two (406) has an optical channel (411). The optical channel (411) has a photoelectric sensor (412). The back side of the photoelectric sensor (412) has a control circuit board two (413). The control circuit board two (413) is set on the sleeve two (406) by screws.

2. The portable wastewater detector according to claim 1, characterized in that: A knob (414) is fixedly provided at the center of the sample tube turntable (401), and the knob (414) is coaxial with the connecting shaft (402).

3. The portable wastewater detector according to claim 1, characterized in that: The sleeve (405) is provided with a plurality of vent holes (415) and a semi-annular insert cavity (416) that penetrates the sleeve (405) in the vertical direction on the side away from the photoelectric sensor (412). The lower outer shell (102) is also provided with a semi-annular through slit (5) corresponding to the semi-annular insert cavity (416).

4. A portable wastewater detector according to claim 3, characterized in that: The lower outer shell (102) is provided with a circular groove (6), and a connecting piece (7) is provided in the circular groove (6). A semi-circular slot (8) is provided at the position corresponding to the semi-circular insert cavity (416) of the connecting piece (7), and a drying piece (9) is movably provided in the semi-circular slot (8).

5. A portable wastewater detector according to claim 4, characterized in that: The connecting piece (7) is connected to the circular groove (6) by an interference fit. The connecting piece (7) is made of corrosion-resistant rubber. The lower end face of the connecting piece (7) is provided with a pull-in groove (10). A pull rod (11) is provided in the pull-in groove (10). The pull rod (11) is made of hard plastic.

6. A portable wastewater detector according to claim 1, characterized in that: The colorimetric lamps (409) are provided in multiples and arranged in a vertical array, and each colorimetric lamp (409) is electrically connected to the control circuit board (410).

7. A portable wastewater detector according to claim 1, characterized in that: The photoelectric sensor (412) is electrically connected to the control circuit board (413).

8. A portable wastewater detector according to claim 1, characterized in that: The upper outer shell (101) is also provided with a protective cover (12), which is connected to the upper outer shell (101) by a hinge, and the protective cover (12) is made of opaque plastic.

9. A portable wastewater detector according to claim 1, characterized in that: A processor (13) is also provided on the back of the upper housing (101) at the position of the touch screen (2). The processor (13) is electrically connected to both the first control circuit board (410) and the second control circuit board (413).

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