Handheld heavy metal detector

Abstract

The utility model discloses a handheld heavy metal detector, which relates to the technical field of heavy metal detection, and comprises a handheld detection module on the upper side and an analysis pool module on the lower side, the handheld detection module comprises an electrode tip, and the analysis pool module comprises an analysis pool detection position; a first connecting table is arranged on the lower side of the handheld detection module, and a second connecting table is arranged on the upper side of the analysis pool module; a first magnetic ejector pin is arranged on the first connecting table, and a second magnetic ejector pin is arranged on the second connecting table; by adopting the detachable design of the handheld detection module and the analysis pool module, after the handheld detection module is detached, a sample can be conveniently placed at an analysis pool detection position of the analysis pool module, then the handheld detection module is installed, an electrode tip is immersed into the sample, and then power-on detection work can be carried out, so that the use is simple, and the detection efficiency is high. And the whole device is miniaturized and portable, so that the requirement of on-site detection work is met.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy metal detection, in particular to a handheld heavy metal detector. Background Art

[0002] Heavy metal detection is very important for food safety and environmental safety. For example, for samples of dry and wet paddy, rice, wheat, corn, water quality, soil, etc., it is necessary to use heavy metal detectors to conduct timely detection of heavy metal ions such as lead, cadmium, arsenic, mercury, zinc, etc. that may be contained in them.

[0003] At present, there are many methods for detecting heavy metals in food and environmental samples. Among them, atomic absorption spectroscopy or atomic fluorescence spectrophotometer can achieve faster detection results. Specifically, the detection work needs to be carried out by electrode power-on detection. In practice, when testing by electrode power-on detection, the test sample needs to be soaked in an acid reagent and powered on by connecting the electrode. However, the existing heavy metal detector is large in size and not easy to carry. It is only suitable for use in the laboratory and cannot meet the needs of rapid on-site detection. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a handheld heavy metal detector.

[0005] The technical solution adopted by the utility model to solve its technical problems is: to provide a handheld heavy metal detector, including a handheld detection module on the upper side and an analysis cell module on the lower side, the handheld detection module including an electrode head, and the analysis cell module including an analysis cell detection position; a first connecting platform is arranged on the lower side of the handheld detection module, and a second connecting platform is arranged on the upper side of the analysis cell module, the handheld detection module is connected to the second connecting platform of the analysis cell module through the first connecting platform, wherein the first connecting platform and the second connecting platform are detachably connected; a first magnetic ejector pin is arranged on the first connecting platform, and a second magnetic ejector pin is arranged on the second connecting platform, and when the first connecting platform is connected to the second connecting platform, the first magnetic ejector pin is electrically connected to the second magnetic ejector pin.

[0006] According to the handheld heavy metal detector provided by the utility model, by adopting a detachable design of the handheld detection module and the analysis cell module, at least the following technical effects are achieved: after removing the handheld detection module, the sample can be conveniently placed in the analysis cell detection position of the analysis cell module, and then the handheld detection module can be installed and the electrode head can be immersed in the sample, and then power can be turned on to perform detection work. It is simple to use and the entire device can be miniaturized and portable, which is beneficial to the needs of on-site detection work.

[0007] As some preferred embodiments of the present utility model, the handheld detection module includes a detection module support, the first connecting platform is located at the lower side of the rear side of the detection module support, and the electrode head is located at the lower side of the front side of the detection module support.

[0008] As some preferred embodiments of the present utility model, the handheld detection module includes a display screen on the front side.

[0009] As some preferred embodiments of the present utility model, the handheld detection module includes a handle on the rear side.

[0010] As some preferred embodiments of the present utility model, the handheld detection module includes a printer.

[0011] As some preferred embodiments of the present utility model, the electrode head is connected to the detection module support via a rotating slip ring, and the rotating slip ring drives the electrode head to rotate.

[0012] As some preferred embodiments of the present invention, the second connecting platform is located at the rear side of the analysis cell module, the analysis cell module includes a front detection working surface, and the analysis cell detection position is located on the detection working surface.

[0013] As some preferred embodiments of the utility model, a plug-in boss is provided on the first connecting platform, and a plug-in recess is provided on the second connecting platform. The plug-in boss is plugged into the plug-in recess, the first magnetic ejector pin is located on the plug-in boss, and the second magnetic ejector pin is located on the plug-in recess.

[0014] As some preferred embodiments of the utility model, a power connection recess is provided on the plug-in boss, the first magnetic ejector pin is located on the power connection recess, a power connection boss is provided on the plug-in recess, the second magnetic ejector pin is located on the power connection boss, and the power connection recess is connected to the power connection boss.

[0015] As some preferred embodiments of the present utility model, the analysis pool detection position is a concave structure, and the analysis pool detection position has a cavity.

[0016] The beneficial effects of the utility model are:

[0017] 1. This detector adopts anodic stripping voltammetry to meet the needs of heavy metal detection. It is suitable for rapid detection of heavy metal ions such as lead, cadmium, arsenic, mercury, zinc, etc. in samples such as dry and wet paddy, rice, wheat, corn, water quality, soil, etc.;

[0018] 2. The detector adopts a design that can be separated and disassembled from top to bottom. The upper part is a handheld detection module, and the lower part is an analysis cell module. The upper and lower parts are connected and matched through the first and second magnetic pins to charge and transmit the detection data of the analysis cell;

[0019] 3. When conducting the test, after removing the handheld test module, it is very convenient to place the sample in the analysis pool test position of the analysis pool module, and then install the handheld test module and immerse the electrode head in the sample, and then power on to conduct the test. It is easy to use and makes the entire device miniaturized and portable, which is conducive to the needs of on-site testing;

[0020] 4. The detector supports single-channel or channel selection detection mode, can detect multiple samples at the same time, can detect multiple elements such as lead, cadmium, copper, zinc, arsenic, mercury, etc., supports simultaneous detection of lead and cadmium, and adapts to more scenario requirements.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a three-dimensional diagram of the handheld heavy metal detector of the utility model;

[0024] Figure 2 This is a right side view of the handheld heavy metal detector of the utility model;

[0025] Figure 3 It is a right side sectional view of the handheld heavy metal detector of the utility model;

[0026] Figure 4 It is a three-dimensional diagram of the handheld detection module in the utility model;

[0027] Figure 5 It is a stereogram of the analysis cell module in the utility model.

[0028] Reference numerals:

[0029] Handheld detection module 100, first connecting platform 110, plug-in boss 111, power connection recess 112, first connecting platform limiting surface 113, first magnetic ejector pin 120, electrode head 130, rotating slip ring 131, detection module support 140, battery 141, display screen 150, handle 160, printer 170; analysis cell module 200, second connecting platform 210, plug-in recess 211, power connection boss 212, second connecting platform limiting surface 213, second magnetic ejector pin 220, analysis cell detection position 230, detection working surface 240. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, the meaning of "a plurality" is more than two, and "greater than", "less than", "exceed" etc. are understood to exclude the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model, referring to Figure 1 One embodiment of the utility model provides a handheld heavy metal detector for detecting the heavy metal content of a sample.

[0035] Further, see Figure 2 , Figure 3The handheld heavy metal detector of the utility model includes a handheld detection module 100 on the upper side and an analysis cell module 200 on the lower side. The handheld detection module 100 includes an electrode head 130, and the analysis cell module 200 includes an analysis cell detection position 230. The sample to be detected is placed at the position of the analysis cell detection position 230, and the electrode head 130 is immersed in the sample at the analysis cell detection position 230, and then the electrode head 130 is powered on to achieve the detection effect. The specific principle refers to other detection devices using anodic stripping voltammetry, which will not be repeated here.

[0036] Further, refer to Figure 4 , a first connection platform 110 is disposed at the lower side of the handheld detection module 100. Figure 5 , a second connection platform 210 is disposed on the upper side of the analysis cell module 200. Figure 2 , Figure 3 The handheld detection module 100 is connected to the second connection platform 210 of the analysis cell module 200 through the first connection platform 110, wherein the first connection platform 110 and the second connection platform 210 are detachably connected, that is, the connection between the handheld detection module 100 and the analysis cell module 200 is achieved by docking the first connection platform 110 with the second connection platform 210.

[0037] Further, refer to Figure 3 A first magnetic ejector pin 120 is provided on the first connecting platform 110, and a second magnetic ejector pin 220 is provided on the second connecting platform 210. When the first connecting platform 110 is connected to the second connecting platform 210, the first magnetic ejector pin 120 is electrically connected to the second magnetic ejector pin 220, thereby ensuring that the handheld detection module 100 and the analysis pool module 200 are electrically connected at the same time after being connected together.

[0038] In actual work, after collecting the sample, first remove the handheld detection module 100, so that the sample to be detected can be conveniently placed at the analysis pool detection position 230 of the analysis pool module 200. After placing the sample, install the handheld detection module 100, immerse the electrode head 130 in the sample, and then energize the electrode head 130 to perform the detection work. The handheld detection module 100 on the upper side and the analysis pool module 200 on the lower side are electrically connected through the first magnetic ejector pin 120 and the second magnetic ejector pin 220 to realize power-on and transfer the data of the analysis pool.

[0039] Some embodiments, see Figure 4 The handheld detection module 100 includes a detection module support 140 , the first connection platform 110 is located at the lower side of the rear side of the detection module support 140 , and the electrode head 130 is located at the lower side of the front side of the detection module support 140 .

[0040] In some embodiments, a battery 141 is disposed in the detection module support 140 to serve as a power supply device for the handheld heavy metal detector of the present invention, thereby realizing wireless operation of the handheld heavy metal detector of the present invention.

[0041] In this embodiment, optionally, a wiring port is provided on the handheld detection module 100 for connecting an external power line or a data line.

[0042] Some embodiments, see Figure 1 , Figure 4 The handheld detection module 100 includes a display screen 150 on the front side for displaying information data. The display screen 150 can also use a touch screen as an operation panel.

[0043] Some embodiments, see Figure 2 , Figure 3 The handheld detection module 100 includes a handle 160 at the rear, which is convenient for workers to hold the handheld heavy metal detector of the utility model to perform detection work on site.

[0044] In this embodiment, optionally, two ends of the handle 160 are connected to the rear side of the display screen 150 and the upper side of the detection module support 140 .

[0045] Some embodiments, see Figure 3 The handheld detection module 100 includes a printer 170 for printing detection data.

[0046] In some embodiments, the electrode head 130 is connected to the detection module support 140 via a rotating slip ring 131, which drives the electrode head 130 to rotate, so that the electrode head 130 can play a stirring role after being immersed in the sample, and the accuracy of the detection is ensured by stirring. The rotating slip ring 131 can ensure that the power supply control of the electrode head 130 is not affected by the rotation process. The structure and working principle of the rotating slip ring 131 can refer to the slip ring device of the prior art.

[0047] In this embodiment, optionally, the electrode head 130 has a rotating shaft, and the rotating shaft is connected to the rotating slip ring 131, and the rotating slip ring 131 is driven to rotate by a reduction motor.

[0048] In this embodiment, optionally, the reduction motor is electrically connected to the PCBA mainboard to achieve rotation control of the electrode head 130 .

[0049] Some embodiments, see Figure 5 The second connecting platform 210 is located at the rear side of the analysis cell module 200. The analysis cell module 200 includes a front detection working surface 240. The analysis cell detection position 230 is located on the detection working surface 240. This allows the analysis cell module 200 to have enough space to facilitate the placement of samples.

[0050] In some embodiments, the electrode head 130 of the handheld heavy metal detector of the utility model corresponds to the detection position 230 of the analysis pool to form a detection channel, which can be designed as a single detection channel according to needs, and also supports multi-detection channel selection detection, so that multiple samples can be detected at the same time, and multiple elements such as lead, cadmium, copper, zinc, arsenic, mercury, etc. can be detected, and the simultaneous detection of lead and cadmium is supported to adapt to more scenario requirements.

[0051] Some embodiments, see Figure 4 , Figure 5 The first connection platform 110 is provided with a plugging boss 111, and the second connection platform 210 is provided with a plugging recess 211. The plugging boss 111 is plugged into the plugging recess 211. The first magnetic ejector pin 120 is located on the plugging boss 111, and the second magnetic ejector pin 220 is located on the plugging recess 211. By plugging the plugging boss 111 of the handheld detection module 100 into the plugging recess 211 of the analysis cell module 200, the handheld detection module 100 and the analysis cell module 200 are stably connected and installed.

[0052] In some embodiments, a first connecting platform limiting surface 113 is provided at the edge of the first connecting platform 110, and a second connecting platform limiting surface 213 is provided at the edge of the second connecting platform 210. When the first connecting platform 110 is docked with the second connecting platform 210, the first connecting platform limiting surface 113 presses against the second connecting platform limiting surface 213 to play a limiting and supporting role, thereby ensuring that the handheld detection module 100 and the analysis pool module 200 are sufficiently stable when connected together.

[0053] Some embodiments, see Figure 3 , Figure 4 The plug-in boss 111 is provided with a power connection recess 112, and the first magnetic ejector pin 120 is located on the power connection recess 112. Figure 3 , Figure 5 The plug-in recess 211 is provided with an electrical connection boss 212, and the second magnetic ejector pin 220 is located on the electrical connection boss 212. The electrical connection recess 112 is connected to the electrical connection boss 212, so that when the handheld detection module 100 is connected to the analysis cell module 200, the first magnetic ejector pin 120 of the handheld detection module 100 and the second magnetic ejector pin 220 of the analysis cell module 200 can also be aligned to ensure the electrical connection effect.

[0054] Some embodiments, see Figure 1 , Figure 5 The analysis pool detection position 230 is a concave structure, and the analysis pool detection position 230 has a cavity. The cavity of the analysis pool detection position 230 can be used to place a sample, or a container for placing a sample.

[0055] In some embodiments, a temperature sensor is provided on the analysis pool detection position 230 to detect the temperature of the sample.

[0056] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A handheld heavy metal detector, characterized in that: It comprises a handheld detection module (100) on the upper side and an analysis cell module (200) on the lower side, wherein the handheld detection module (100) comprises an electrode head (130), and the analysis cell module (200) comprises an analysis cell detection position (230); A first connection platform (110) is disposed at the lower side of the handheld detection module (100), and a second connection platform (210) is disposed at the upper side of the analysis cell module (200); the handheld detection module (100) is connected to the second connection platform (210) of the analysis cell module (200) via the first connection platform (110), wherein the first connection platform (110) and the second connection platform (210) are detachably connected; A first magnetic ejector pin (120) is disposed on the first connection platform (110), and a second magnetic ejector pin (220) is disposed on the second connection platform (210); when the first connection platform (110) is connected to the second connection platform (210), the first magnetic ejector pin (120) is electrically connected to the second magnetic ejector pin (220).

2. A handheld heavy metal detector according to claim 1, characterized in that: The handheld detection module (100) comprises a detection module support (140), the first connection platform (110) is located at a lower position on the rear side of the detection module support (140), and the electrode head (130) is located at a lower position on the front side of the detection module support (140).

3. A handheld heavy metal detector according to claim 1, characterized in that: The handheld detection module (100) comprises a display screen (150) on the front side.

4. A handheld heavy metal detector according to claim 1, characterized in that: The handheld detection module (100) comprises a handle (160) at the rear side.

5. A handheld heavy metal detector according to claim 1, characterized in that: The handheld detection module (100) comprises a printer (170).

6. A handheld heavy metal detector according to claim 2, characterized in that: The electrode head (130) and the detection module support (140) are connected via a rotating slip ring (131), and the rotating slip ring (131) drives the electrode head (130) to rotate.

7. A handheld heavy metal detector according to claim 1, characterized in that: The second connection platform (210) is located at the rear side of the analysis cell module (200); the analysis cell module (200) includes a front detection work surface (240); and the analysis cell detection position (230) is located on the detection work surface (240).

8. A handheld heavy metal detector according to claim 1, characterized in that: The first connecting platform (110) is provided with a plugging boss (111), the second connecting platform (210) is provided with a plugging recess (211), the plugging boss (111) is plugged into the plugging recess (211), the first magnetic ejector pin (120) is located on the plugging boss (111), and the second magnetic ejector pin (220) is located on the plugging recess (211).

9. A handheld heavy metal detector according to claim 8, characterized in that: The plugging boss (111) is provided with a power connection recess (112), the first magnetic ejector pin (120) is located on the power connection recess (112), the plugging recess (211) is provided with a power connection boss (212), the second magnetic ejector pin (220) is located on the power connection boss (212), and the power connection recess (112) is connected to the power connection boss (212).

10. A handheld heavy metal detector according to claim 1, characterized in that: The analysis pool detection position (230) is a concave structure, and the analysis pool detection position (230) has a cavity.

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