Detection and sampling device for low-impurity automotive urea solution
By designing a urea solution detection and sampling device with lifting, moving, and storage components, the problem of ineffective sampling by traditional devices has been solved, enabling convenient sampling and accurate detection of urea at different depths.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional urea testing and sampling devices cannot effectively sample urea solution at different depths inside the vehicle, resulting in inaccurate test results and increasing the workload of staff.
A low-impurity automotive urea solution detection and sampling device was designed, comprising a base, a lifting and moving assembly, a storage assembly, a piston assembly, and a sampling assembly. The height of the base is adjusted by an electric push rod, and the solenoid valve and piston assembly are used to achieve the classification, storage, and sampling of urea at different depths.
It enables convenient sampling of urea at different depths, reduces the workload of staff, and improves the accuracy and efficiency of testing.
Smart Images

Figure CN224066416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urea solution sampling technology, and in particular to a low-impurity automotive urea solution detection and sampling device. Background Technology
[0002] Automotive urea is an essential product for heavy-duty diesel vehicles to meet the China IV emission standard. Automotive urea refers to an aqueous solution of urea with a urea concentration of 32.5% and ultrapure water as the solvent. The raw materials are special raw materials for automotive urea and ultrapure water.
[0003] During the use of automotive urea, it is necessary to sample and test the urea solution added inside the low-impurity vehicle. Most traditional sampling devices are not capable of sampling and testing urea solution at different depths inside the vehicle. The accuracy of urea test results from a single depth is not high, requiring staff to take multiple samples, which increases the workload of staff unnecessarily and is inconvenient for staff to use. Therefore, we have proposed a sampling device for testing low-impurity automotive urea solution. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a low-impurity automotive urea solution detection and sampling device to solve the aforementioned problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A sampling device for detecting low-impurity automotive urea solution includes a base, a lifting and moving assembly at the bottom of the base, two toolboxes fixedly connected to the top of the base in a symmetrical arrangement, a storage assembly at the top of the base, a connecting pipe at the top of the base, a sampling tube connected to the outside of the connecting pipe, a piston assembly at the outside of the sampling tube, and a sampling assembly at the top of the base.
[0007] Preferably, the lifting and moving assembly includes electric push rods located at the four corners of the base. The output ends of the four electric push rods are fixedly connected to the bottom of the base, and each of the four electric push rods is fixedly connected to a caster wheel. The height of the base can be adjusted by the lifting and moving assembly, which facilitates the sampling of urea from low-impurity vehicles of different heights.
[0008] Preferably, the storage component includes three correspondingly distributed storage boxes fixedly connected to the top of the base. One side of each of the three storage boxes is connected to a first connecting pipe, a second connecting pipe, and a third connecting pipe. The first connecting pipe, the second connecting pipe, and the third connecting pipe are all connected to the outside of the connecting pipe. By using the storage component, urea at different depths can be classified and stored.
[0009] Preferably, a first solenoid valve is provided on the outside of the first connecting pipe, a second solenoid valve is provided on the outside of the second connecting pipe, and a third solenoid valve is provided on the outside of the third connecting pipe.
[0010] Preferably, the piston assembly includes a piston barrel connected to the outside of the sampling tube, a piston plate movably connected inside the piston barrel, and a piston rod fixedly connected to one side of the piston plate. Through the piston assembly, urea can be drawn into the piston barrel.
[0011] Preferably, a handle is fixedly connected to one side of the piston rod. The handle is made of rubber, which improves the comfort of the operator when holding the handle.
[0012] Preferably, the sampling assembly includes a telescopic flexible tube connected to the outside of the sampling tube, and a suction head is connected to the outside of the telescopic flexible tube. Urea can be sampled through the sampling assembly.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When it is necessary to sample urea from a low-impurity vehicle, the base is first moved to the outside of the low-impurity vehicle. The height of the base can be adjusted by the electric push rod, which facilitates sampling of urea from low-impurity vehicles of different heights. Then, the telescopic hose and suction head are placed into the low-impurity vehicle. At this time, the handle is held and pulled. The movement of the handle will drive the piston rod and piston plate to move inside the piston barrel. Urea can then enter the piston barrel from the suction head, telescopic hose, and sampling tube. By opening the first solenoid valve, the urea inside the piston barrel can be stored in the corresponding storage box. When it is necessary to sample urea at different depths, the above operation is repeated. Simply open the second solenoid valve and close the first solenoid valve. The urea can then be stored in the corresponding storage box. With the above structure, it is convenient for staff to sample urea at different depths without having to sample multiple times, reducing unnecessary workload for staff and greatly facilitating the use of the equipment. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0016] Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A.
[0017] In the diagram: 1. Base; 2. Electric actuator; 3. Casters; 4. Toolbox; 5. Storage box; 6. First connecting pipe; 7. Second connecting pipe; 8. Third connecting pipe; 9. First solenoid valve; 10. Second solenoid valve; 11. Third solenoid valve; 12. Connecting pipe; 13. Sampling tube; 14. Telescopic hose; 15. Suction head; 16. Piston barrel; 17. Piston plate; 18. Piston rod; 19. Handle. Detailed Implementation
[0018] 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.
[0019] Example: Refer to Figure 1-3 A sampling device for detecting low-impurity automotive urea solution includes a base 1. A lifting and moving assembly is provided at the bottom of the base 1. The lifting and moving assembly includes electric push rods 2 located at the four corners of the bottom of the base 1. The output ends of the four electric push rods 2 are fixedly connected to the bottom of the base 1. All four electric push rods 2 are fixedly connected to the bottom of the base 1 with casters 3. The height of the base 1 can be adjusted by the lifting and moving assembly, which facilitates the sampling of urea from low-impurity vehicles of different heights.
[0020] Specifically, a toolbox 4 is fixedly connected to the top of the base 1. There are two toolboxes 4, which are symmetrically distributed. A storage component is set on the top of the base 1. The storage component includes three corresponding storage boxes 5 fixedly connected to the top of the base 1. One side of each of the three storage boxes 5 is connected to a first connecting pipe 6, a second connecting pipe 7, and a third connecting pipe 8. The first connecting pipe 6, the second connecting pipe 7, and the third connecting pipe 8 are all connected to the outside of the connecting pipe 12. Through the storage component, urea of different depths can be classified and stored. A first solenoid valve 9 is set outside the first connecting pipe 6, a second solenoid valve 10 is set outside the second connecting pipe 7, and a third solenoid valve 11 is set outside the third connecting pipe 8. A handle 19 is fixedly connected to one side of the piston rod 18. The handle 19 is made of rubber. The rubber handle 19 improves the comfort of the operator when holding it.
[0021] Specifically, a connecting pipe 12 is provided on the top of the base 1, and a sampling pipe 13 is connected to the outside of the connecting pipe 12. A piston assembly is provided on the outside of the sampling pipe 13. The piston assembly includes a piston barrel 16 connected to the outside of the sampling pipe 13. A piston plate 17 is movably connected inside the piston barrel 16. A piston rod 18 is fixedly connected to one side of the piston plate 17. Through the piston assembly, urea can be drawn into the inside of the piston barrel 16.
[0022] Specifically, a sampling component is provided on the top of the base 1. The sampling component includes a telescopic hose 14 connected to the outside of the sampling tube 13. A suction head 15 is connected to the outside of the telescopic hose 14. Urea can be sampled through the sampling component.
[0023] In use: When sampling urea from a low-impurity vehicle, first move the base 1 to the outside of the vehicle. The height of the base 1 can be adjusted using the electric push rod 2, facilitating sampling of urea from vehicles of different heights. Then, place the telescopic hose 14 and suction head 15 into the vehicle. Hold and pull the handle 19; this movement moves the piston rod 18 and piston plate 17 within the piston barrel 16, allowing urea to enter the piston barrel 16 through the suction head 15, telescopic hose 14, and sampling tube 13. Opening the first solenoid valve 9 stores the urea in the corresponding storage tank 5. To sample urea at different depths, repeat the above steps, opening the second solenoid valve 10 and closing the first solenoid valve 9. This structure allows for convenient sampling of urea at varying depths without requiring multiple samplings, reducing unnecessary workload and greatly simplifying operation.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for detecting and sampling a low-impurity urea solution for automotive use, comprising a base (1), characterized in that, The bottom of the base (1) is provided with a lifting moving assembly, the top of the base (1) is fixedly connected with tool boxes (4), the number of the tool boxes (4) is two, which are symmetrically distributed, the top of the base (1) is provided with a storage assembly, the top of the base (1) is provided with a communication pipe (12), the outside of the communication pipe (12) is connected with a sampling pipe (13), the outside of the sampling pipe (13) is provided with a piston assembly, and the top of the base (1) is provided with a sampling assembly.
2. The low-impurity urea solution detection sampling device for vehicles according to claim 1, characterized by The lifting moving assembly comprises electric push rods (2) arranged at the four corners of the bottom of the base (1), the output ends of the four electric push rods (2) are fixedly connected to the bottom of the base (1), and the bottoms of the four electric push rods (2) are fixedly connected with universal wheels (3).
3. The low-impurity urea solution detection sampling device for vehicles according to claim 1, characterized by, The storage assembly comprises three storage boxes (5) fixedly connected to the top of the base (1) and arranged in correspondence, one side of each of the three storage boxes (5) is connected with a first connecting pipe (6), a second connecting pipe (7) and a third connecting pipe (8) in correspondence, and the first connecting pipe (6), the second connecting pipe (7) and the third connecting pipe (8) are connected to the outside of the communication pipe (12) in correspondence.
4. The low-impurity urea solution detection sampling device for vehicles according to claim 3, characterized by The outside of the first connecting pipe (6) is provided with a first electromagnetic valve (9), the outside of the second connecting pipe (7) is provided with a second electromagnetic valve (10), and the outside of the third connecting pipe (8) is provided with a third electromagnetic valve (11).
5. The low-impurity urea solution detection sampling device for vehicles according to claim 1, characterized by The piston assembly comprises a piston barrel (16) connected to the outside of the sampling pipe (13) in correspondence, the inside of the piston barrel (16) is movably connected with a piston plate (17), and one side of the piston plate (17) is fixedly connected with a piston rod (18).
6. The low-impurity urea solution detection sampling device for vehicles according to claim 5, characterized by One side of the piston rod (18) is fixedly connected with a handle (19), and the handle (19) is made of rubber material.
7. The low-impurity urea solution detection sampling device for vehicles according to claim 1, characterized by The sampling assembly comprises a flexible hose (14) connected to the outside of the sampling pipe (13) in correspondence, and the outside of the flexible hose (14) is connected with a suction head (15).