Rapid detection device for heavy metals in chemical products

Abstract

The utility model discloses a chemical product heavy metal rapid detection device which comprises a sampling pipe, a piston is arranged in the sampling pipe, a piston rod and a push handle are installed at the upper end of the piston, a shaft rod is inserted into long through holes formed in the centers of the piston, the piston rod and the push handle, and a through hole is vertically formed in the piston. A one-way valve is arranged in a vent pipe mounted at the upper end of the through hole; a stirring rod is mounted on a shaft rod at the lower end of the piston; a liquid discharge pipe and a first connecting pipe are mounted at the lower end of the sampling pipe, a detection pipe cover is connected to the side surface of the bottom of the first connecting pipe through a plurality of liquid guide pipes, and the detection pipe cover is mounted at the upper end of the detection pipe; compared with the prior art, the device disclosed by the utility model has the beneficial effects that when a chemical product is sampled and detected, detection reagents of different heavy metal elements are respectively added into the detection tubes, and after preparation of a sample solution is completed in the sampling tube, the piston rod is pushed downwards, and the sample solution enters the detection tubes and is mixed with the detection reagents to generate a chromogenic reaction.

Description

Technical Field

[0001] This utility model relates to the field of heavy metal detection technology in chemical products, specifically a rapid detection device for heavy metals in chemical products. Background Technology

[0002] When detecting heavy metal elements in chemical products such as cosmetics, rapid test strips or reagents can preliminarily determine whether the chemical products contain heavy metal elements. However, the chemical products need to be pre-treated before use, including mixing, stirring, and filtering, to prepare test samples. Then, depending on the testing requirements, the samples are injected into different reagents, and the content of heavy metal elements is preliminarily determined by color comparison. During testing, multiple separate test reagents and test bottles are required, and the test solution needs to be injected into different test containers as needed. The operation is relatively cumbersome, and the integration of the detection device is very low, making it inconvenient for detecting multiple heavy metal elements in various types of chemical products. Therefore, we propose a rapid detection device for heavy metals in chemical products. Utility Model Content

[0003] The purpose of this invention is to provide a rapid detection device for heavy metals in chemical products to solve the problems mentioned in the background art.

[0004] A rapid heavy metal detection device for chemical products includes a sampling tube, a piston inside the sampling tube that can move up and down within the tube, a piston rod at the upper end of the piston, a push handle at the upper end of the piston rod, a long through hole at the center of the piston, piston rod, and push handle, a shaft inserted into the long through hole, a rotating handle at the upper end of the shaft that can rotate within the long through hole, and the lower end of the shaft inserted to the bottom of the sampling tube. A limiting plate is installed on the shaft located on the upper surface of the push handle and the lower surface of the piston to prevent the shaft from moving up and down. A through hole is vertically opened on the piston, a vent pipe is installed at the upper end of the through hole, and a one-way valve is installed inside the vent pipe, allowing air to flow only from top to bottom. Several stirring rods are horizontally installed on the side of the shaft located at the lower end of the piston.

[0005] The sampling tube is equipped with a drain pipe at its lower end, and a switch valve is installed on the drain pipe. A first connecting pipe is detachably installed at the lower end of the drain pipe and is threadedly connected to the drain pipe. Several L-shaped liquid guide tubes are connected to the horizontal ends of the bottom side of the first connecting pipe. A detection tube cap is connected to the vertical end of the liquid guide tube and is installed at the upper end of the detection tube. A second connecting pipe is installed at the upper end of the detection tube cap, and a tube cap is installed at the upper end of the second connecting pipe.

[0006] Preferably, the bottom of the first connecting tube is equipped with an internally threaded tube, and a threaded block is screwed into the internally threaded tube. A connecting spring is installed at the lower end of the threaded block, and a base is installed at the lower end of the connecting spring. The connecting spring provides support for the detection device. After the connecting spring is bent and released, the high-frequency vibration of the connecting spring can make the detection sample in the detection tube fully contact and mix with the actual sample.

[0007] Preferably, a first sealing sleeve is provided inside the long through hole of the piston, and a second sealing sleeve is provided on the outer surface of the piston to ensure the sealing between the piston and the sampling tube and the sealing between the shaft and the long through hole.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] When sampling and testing chemical products, the test reagents for different heavy metal elements are first added to the test tubes. Then, the first connecting tube is separated from the drain tube. Next, the piston rod is pulled to pull the piston out of the sampling tube. Then, the sample to be tested is loaded into the sampling tube, and the solvent is injected. The sampling tube is then turned upwards, and the piston rod is pushed to expel the air in the sampling tube. Finally, the first connecting tube is connected to the drain tube. By rotating the shaft, several stirring rods are driven to rotate, so that the chemical product to be tested and the solvent are fully mixed and the sample solution is prepared.

[0010] Finally, pull the piston rod to allow air to enter the sampling tube through the one-way valve in the vent tube. Then push the piston rod down to allow the sample solution in the sampling tube to enter the detection tube through the drain tube, the first connecting tube, and the guide tube. After mixing with the detection reagent, a color reaction occurs, and the presence of heavy metals is detected by comparison.

[0011] This invention integrates multiple detection devices and sample solution preparation devices, enabling the preparation of sample solutions and simultaneous detection of multiple heavy metals. It reduces the number of operational steps and required testing instruments, thereby improving work efficiency and detection results. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention;

[0013] Figure 2 This is a front structural cross-sectional view of the present invention.

[0014] In the diagram: 1. Sampling tube, 2. Piston, 201. Through hole, 3. Piston rod, 301. Long through hole, 4. Push handle, 5. Shaft, 6. Limiting plate, 7. Rotary handle, 8. First sealing sleeve, 9. Second sealing sleeve, 10. Stirring rod, 11. Vent pipe, 12. One-way valve, 13. Drain pipe, 14. Switch valve, 15. First connecting pipe, 16. Guide pipe, 17. Detection tube cap, 18. Detection tube, 19. Second connecting pipe, 20. Pipe cap, 21. Internally threaded pipe, 22. Threaded block, 23. Connecting spring, 24. Base. Detailed Implementation

[0015] 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.

[0016] See Figure 1-2 A rapid heavy metal detection device for chemical products includes a sampling tube 1, a piston 2 disposed inside the sampling tube 1, the piston 2 being able to move up and down within the sampling tube 1, a piston rod 3 mounted on the upper end of the piston 2, a push handle 4 mounted on the upper end of the piston rod 3, an elongated through hole 301 formed at the center of the piston 2, piston rod 3, and push handle 4, a shaft 5 inserted into the elongated through hole 301, a rotating handle 7 mounted on the upper end of the shaft 5, the shaft 5 being able to rotate within the elongated through hole 301, and the lower end of the shaft 5 inserted to the bottom of the sampling tube 1. A limiting plate 6 is mounted on the shaft 5 located on the upper surface of the push handle 4 and the lower surface of the piston 2, the limiting plate 6 ensuring that the shaft 5 cannot move up and down, and a through hole 201 vertically formed on the piston 2, the upper end of the through hole 201 being fitted with a vent pipe. 11. A one-way valve 12 is provided inside the vent pipe 11. Air in the one-way valve 12 can only flow from top to bottom. Several stirring rods 10 are horizontally installed on the side of the shaft 5 located at the lower end of the piston 2. Pulling the piston rod 3 pulls the piston 2 out of the sampling tube 1. Then, the sample to be tested is loaded into the sampling tube 1, and then the solvent is injected. The sampling tube 1 is then turned upward, and the piston rod 3 is pushed to expel the air in the sampling tube 1. By rotating the shaft 5, the stirring rods 10 are rotated, so that the chemical product to be tested and the solvent are fully contacted and mixed to complete the preparation of the sample solution. A first sealing sleeve 8 is provided inside the long through hole 301 of the piston 2, and a second sealing sleeve 9 is provided on the outer surface of the piston 2 to ensure the sealing between the piston 2 and the sampling tube 1, as well as the sealing between the shaft 5 and the long through hole 301.

[0017] The sampling tube 1 is equipped with a drain pipe 13 at its lower end. A switch valve 14 is installed on the drain pipe 13. A first connecting pipe 15 is detachably installed at the lower end of the drain pipe 13. The first connecting pipe 15 is threadedly connected to the drain pipe 13. Several L-shaped liquid guide pipes 16 are connected to the horizontal ends of the bottom side of the first connecting pipe 15. A detection tube cap 17 is connected to the vertical end of the liquid guide pipe 16. The detection tube cap 17 is installed at the upper end of the detection tube 18. A second connecting pipe 19 is installed at the upper end of the detection tube cap 17. A tube cap 20 is installed at the upper end of the second connecting pipe 19. When sampling and testing chemical products, the detection reagents for different heavy metal elements are first added to the detection tube 18 respectively. The piston rod 3 is pushed down so that the sample solution in the sampling tube 1 enters the detection tube 18 after passing through the drain pipe 13, the first connecting pipe 15, and the liquid guide pipes 16. After mixing with the detection reagents, a color reaction occurs. After comparison, the presence of heavy metals is detected.

[0018] The bottom of the first connecting tube 15 is equipped with an internally threaded tube 21, and a threaded block 22 is screwed into the internally threaded tube 21. A connecting spring 23 is installed at the lower end of the threaded block 22, and a base 24 is installed at the lower end of the connecting spring 23. The connecting spring 23 provides support for the detection device. After the connecting spring 23 is bent and released, the high-frequency vibration of the connecting spring 23 can make the detection sample in the detection tube 18 fully contact and mix with the actual sample.

[0019] Working principle: When sampling and testing chemical products, the detection reagents for different heavy metal elements are first added to the detection tube 18. Then, the first connecting tube 15 is separated from the drain tube 13. Next, the piston rod 3 is pulled to pull out the piston 2 from the sampling tube 1. Then, the sample to be tested is loaded into the sampling tube 1, and the solvent is injected. The sampling tube 1 is then turned upwards, and the piston rod 3 is pushed to expel the air in the sampling tube 1. Finally, the first connecting tube 15 is connected to the drain tube 13. By rotating the shaft 5, several stirring rods 10 are driven to rotate, so that the chemical product to be tested and the solvent are fully mixed and the sample solution is prepared.

[0020] Pull the piston rod 3 to allow air to enter the sampling tube 1 through the one-way valve 12 in the vent tube 11. Then push the piston rod 3 down to allow the sample solution in the sampling tube 1 to enter the detection tube 18 through the drain tube 13, the first connecting tube 15, and the guide tube 16. After mixing with the detection reagent, a color reaction occurs, and the presence of heavy metals is detected by comparison.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] 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 rapid detection device for heavy metals in chemical products, comprising a sampling tube (1), characterized in that: A piston (2) is provided inside the sampling tube (1). A piston rod (3) is installed at the upper end of the piston (2). A push handle (4) is installed at the upper end of the piston rod (3). A long through hole (301) is opened in the center of the piston (2), piston rod (3) and push handle (4). A shaft (5) is inserted into the long through hole (301). A rotating handle (7) is installed at the upper end of the shaft (5). The lower end of the shaft (5) is inserted into the bottom of the sampling tube (1). A limiting plate (6) is installed on the shaft (5) located on the upper surface of the push handle (4) and the lower surface of the piston (2). A through hole (201) is vertically opened on the piston (2). A vent pipe (11) is installed at the upper end of the through hole (201). A one-way valve (12) is provided inside the vent pipe (11). Several stirring rods (10) are horizontally installed on the side of the shaft (5) located at the lower end of the piston (2). The sampling tube (1) is equipped with a drain pipe (13) at its lower end. A switch valve (14) is provided on the drain pipe (13). A first connecting pipe (15) is detachably installed at the lower end of the drain pipe (13). The bottom side of the first connecting pipe (15) is connected to the horizontal ends of several L-shaped liquid guide pipes (16). The vertical end of the liquid guide pipe (16) is connected to a detection tube cap (17). The detection tube cap (17) is installed at the upper end of the detection tube (18). A second connecting pipe (19) is installed at the upper end of the detection tube cap (17). A tube cap (20) is installed at the upper end of the second connecting pipe (19).

2. The rapid detection device for heavy metals in chemical products according to claim 1, characterized in that: The bottom of the first connecting pipe (15) is fitted with an internally threaded pipe (21), and a threaded block (22) is threaded into the internally threaded pipe (21). A connecting spring (23) is installed at the lower end of the threaded block (22), and a base (24) is installed at the lower end of the connecting spring (23).

3. The rapid detection device for heavy metals in chemical products according to claim 1, characterized in that: A first sealing sleeve (8) is provided inside the elongated through hole (301) of the piston (2), and a second sealing sleeve (9) is provided on the outer surface of the piston (2).

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