Novel oil tank truck sampling device
By designing an outer and inner pipe structure on the oil tanker and utilizing a magnetic positioning component and piston rod system, the problem of inconvenient sampling by traditional sampling devices has been solved, enabling convenient sampling and discharge of light oil and improving the convenience and accuracy of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG HONGTAI HENGYE PETROCHEMICAL CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional oil tanker sampling devices are not convenient for the entry and exit of liquid oil, making sampling difficult.
A novel oil tanker sampling device was designed, which adopts an outer tube and an inner tube structure. A magnetic positioning component ensures that the oil inlet of the outer tube coincides with or is staggered with the oil inlet of the inner tube. Combined with the operation of the piston rod and piston block, the sampling and discharge of light oil are realized.
It enables convenient sampling and discharge of light oil, avoids relative rotation between the outer and inner tubes, and improves the convenience and accuracy of sampling operations.
Smart Images

Figure CN224216369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sampling technology, and in particular to a novel sampling device for oil tankers. Background Technology
[0002] Tanker trucks, also known as mobile refueling trucks, computer-controlled tax refueling trucks, oil tankers, oil loading trucks, oil transport trucks, oil hauling trucks, petroleum transport trucks, and edible oil transport trucks, are vehicles used for transporting and storing petroleum derivatives (gasoline, diesel, crude oil, lubricating oil, and coal tar, etc.).
[0003] In the petrochemical industry, light oil is often referred to as light distillate, mainly including naphtha and atmospheric gas oil. These primarily originate from crude oil distillation units and are important feedstocks for ethylene production via tubular furnace cracking. In the coal chemical industry, the light fractions with boiling points below 210℃ from coal tar and direct coal liquefaction are also called light oil. Some tank trucks are used to transport light oil. During transport, sampling and testing of the liquid oil are necessary. Traditional sampling devices are not convenient for controlling the entry and exit of the liquid oil, posing a challenge to sampling. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel oil tanker sampling device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel oil tanker sampling device, comprising an outer tube body, an inner tube body rotatably connected to the inner tube body, a through-hole opening at the top of the inner tube body, a piston rod inserted inside the through-hole opening, a piston block fixedly connected to the bottom end of the piston rod, the piston block slidably disposed inside the inner tube body, a piston handle fixedly connected to the top end of the piston rod, an L-shaped connecting rod slidably connected to the outer surface of the piston rod, an arc-shaped fixing block fixedly connected to the outer surface of the outer tube body, and a positioning component connecting the L-shaped connecting rod and the arc-shaped fixing block.
[0006] As a further description of the above technical solution:
[0007] The positioning component includes a first magnet fixedly connected to the end of an L-shaped connecting rod. The first magnet is slidably disposed inside an arc-shaped fixing block. A second magnet and a third magnet are fixedly connected inside the arc-shaped fixing block. The first magnet and the second magnet are magnetically connected.
[0008] As a further description of the above technical solution:
[0009] A second slider is fixedly connected to the side wall of the first magnet, and a second groove is provided on the inner wall of the arc-shaped fixing block. The second slider is slidably connected inside the second groove.
[0010] As a further description of the above technical solution:
[0011] The L-shaped connecting rod is fixedly connected to a first slider at one end near the piston rod. A first groove is formed on the outer surface of the piston rod. The first slider is slidably connected inside the first groove. A rubber block is fixedly connected to the inner wall of the through-hole. The rubber block is in slidable contact with the inner wall of the first groove.
[0012] As a further description of the above technical solution:
[0013] An oil outlet pipe is fixedly connected to the top of the inner tube.
[0014] As a further description of the above technical solution:
[0015] The inner wall of the through-hole has two symmetrically arranged limiting ports, and the outer surface of the piston rod is fixedly connected to two symmetrically arranged limiting strips, which are slidably connected inside the corresponding limiting ports.
[0016] As a further description of the above technical solution:
[0017] The outer tube body has an oil inlet through its surface, and the inner tube body has an oil inlet through its surface. The diameters of the oil inlets of the outer tube and the inner tube are the same.
[0018] This utility model has the following beneficial effects:
[0019] 1. Compared with the existing technology, this new type of oil tanker sampling device keeps the oil inlet of the outer pipe and the oil inlet of the inner pipe aligned. Light oil enters the inner pipe body through the oil inlet of the outer pipe and the oil inlet of the inner pipe. The piston rod is moved by pulling the piston handle, and the piston rod moves the piston block upward, which pushes the piston block upward towards the liquid oil. The liquid oil is discharged through the oil outlet pipe, completing the sampling operation. The operation is convenient.
[0020] 2. Compared with the existing technology, the new oil tanker sampling device keeps the oil inlet of the outer tube and the oil inlet of the inner tube aligned. At this time, the first magnet and the second magnet are magnetically attracted together, and the outer tube and the inner tube are not easy to rotate relative to each other. After oil is taken, the first magnet and the third magnet are magnetically attracted together, and the inner tube is not easy to rotate without human intervention. At this time, the oil inlet of the outer tube and the oil inlet of the inner tube are in a staggered state. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of a novel oil tanker sampling device proposed in this utility model;
[0022] Figure 2 This is a schematic diagram of the inner tube structure of a novel oil tanker sampling device proposed in this utility model;
[0023] Figure 3 This is a schematic diagram of the piston rod of a novel oil tanker sampling device proposed in this utility model;
[0024] Figure 4 This utility model proposes a novel oil tanker sampling device. Figure 1 Enlarged view of point A in the middle.
[0025] Legend:
[0026] 1. Outer tube body; 2. Inner tube body; 3. Through port; 4. Piston rod; 5. Piston block; 6. Piston handle; 7. Limit port; 8. Limit strip; 9. L-shaped connecting rod; 10. Arc-shaped fixing block; 11. First magnet; 12. Second magnet; 13. Third magnet; 14. First groove; 15. Rubber block; 16. Oil outlet pipe; 17. Outer tube oil inlet; 18. Inner tube oil inlet. Detailed Implementation
[0027] 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.
[0028] Reference Figures 1 to 4 This utility model provides a novel oil tanker sampling device, comprising an outer tube body 1, an inner tube body 2 rotatably connected inside the outer tube body 1, an oil outlet pipe 16 fixedly connected to the top of the inner tube body 2, a through-hole 3 opened at the top of the inner tube body 2, a piston rod 4 inserted inside the through-hole 3, two symmetrically arranged limiting ports 7 opened on the inner wall of the through-hole 3, two symmetrically arranged limiting strips 8 fixedly connected to the outer surface of the piston rod 4, the limiting strips 8 slidably connected inside the corresponding limiting ports 7, an outer tube oil inlet 17 through-hole opened on the surface of the outer tube body 1, an inner tube oil inlet 18 through-hole opened on the surface of the inner tube body 2, the outer tube oil inlet 17 and the inner tube oil inlet 18 having the same diameter, sealing gaskets provided on the inner walls of the through-hole 3 and the limiting ports 7, the limiting strips 8 cooperating with the limiting ports 7, so that the piston rod 4 can rotate with the inner tube body 2, or the piston rod 4 can slide on the inner tube body 2;
[0029] A piston block 5 is fixedly connected to the bottom end of the piston rod 4. The piston block 5 is slidably disposed inside the inner tube 2. A piston handle 6 is fixedly connected to the top end of the piston rod 4. An L-shaped connecting rod 9 is slidably connected to the outer surface of the piston rod 4. A first slider is fixedly connected to one end of the L-shaped connecting rod 9 near the piston rod 4. A first groove 14 is opened on the outer surface of the piston rod 4. The first slider is slidably connected inside the first groove 14. A rubber block 15 is fixedly connected to the inner wall of the through opening 3. The rubber block 15 slides in contact with the inner wall of the first groove 14 to ensure the sealing of the first groove 14.
[0030] An arc-shaped fixing block 10 is fixedly connected to the outer surface of the outer tube 1. A positioning component is connected between the L-shaped connecting rod 9 and the arc-shaped fixing block 10. The positioning component includes a first magnet 11 fixedly connected to the end of the L-shaped connecting rod 9. The first magnet 11 is slidably disposed inside the arc-shaped fixing block 10. A second magnet 12 and a third magnet 13 are fixedly connected inside the arc-shaped fixing block 10. The first magnet 11 and the second magnet 12 are magnetically connected. A second slider is fixedly connected to the side wall of the first magnet 11. A second sliding groove is opened on the inner wall of the arc-shaped fixing block 10. The second slider is slidably connected inside the second sliding groove. The first magnet 11 and the second magnet 12 are magnetically attracted together, and relative rotation between the outer tube 1 and the inner tube 2 is not easy.
[0031] Working principle:
[0032] When taking oil, keep the oil inlet 17 of the outer tube and the oil inlet 18 of the inner tube aligned. At this time, the first magnet 11 and the second magnet 12 are magnetically attracted together, and it is not easy for the outer tube 1 and the inner tube 2 to rotate relative to each other. Light oil enters the inner tube 2 through the oil inlet 17 of the outer tube and the oil inlet 18 of the inner tube. Then rotate the piston handle 6. The piston handle 6 rotates the piston rod 4, and the piston rod 4 rotates the inner tube 2 and the L-shaped connecting rod 9, so that the first magnet 11 and the third magnet 13 are magnetically attracted together. It is not easy for the inner tube 2 to rotate without human intervention. At this time, the oil inlet 17 of the outer tube and the oil inlet 18 of the inner tube are offset, and the liquid oil will not be discharged from the bottom of the inner tube 2.
[0033] During oil discharge, the piston rod 4 is moved by the piston handle 6. The piston rod 4 moves the piston block 5 upward, causing the piston block 5 to push the liquid oil upward. The liquid oil is discharged through the oil outlet pipe 16, completing the sampling operation.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel oil tanker sampling device, comprising an outer pipe body (1), characterized in that: The inner tube (2) is rotatably connected to the inner tube (1). The top of the inner tube (2) is provided with a through-hole (3). A piston rod (4) is inserted into the through-hole (3). A piston block (5) is fixedly connected to the bottom end of the piston rod (4). The piston block (5) is slidably disposed inside the inner tube (2). A piston handle (6) is fixedly connected to the top end of the piston rod (4). An L-shaped connecting rod (9) is slidably connected to the outer surface of the piston rod (4). An arc-shaped fixing block (10) is fixedly connected to the outer surface of the outer tube (1). A positioning component is connected between the L-shaped connecting rod (9) and the arc-shaped fixing block (10).
2. The novel oil tanker sampling device according to claim 1, characterized in that: The positioning component includes a first magnet (11) fixedly connected to the end of the L-shaped connecting rod (9). The first magnet (11) is slidably disposed inside the arc-shaped fixing block (10). A second magnet (12) and a third magnet (13) are fixedly connected inside the arc-shaped fixing block (10). The first magnet (11) and the second magnet (12) are magnetically connected.
3. The novel oil tanker sampling device according to claim 2, characterized in that: A second slider is fixedly connected to the side wall of the first magnet (11), and a second groove is provided on the inner wall of the arc-shaped fixing block (10), and the second slider is slidably connected inside the second groove.
4. The novel oil tanker sampling device according to claim 1, characterized in that: The L-shaped connecting rod (9) is fixedly connected to a first slider at one end near the piston rod (4). The outer surface of the piston rod (4) is provided with a first groove (14). The first slider is slidably connected inside the first groove (14). A rubber block (15) is fixedly connected to the inner wall of the through opening (3). The rubber block (15) is in sliding contact with the inner wall of the first groove (14).
5. The novel oil tanker sampling device according to claim 1, characterized in that: An oil outlet pipe (16) is fixedly connected to the top of the inner tube (2).
6. The novel oil tanker sampling device according to claim 1, characterized in that: The inner wall of the through-hole (3) has two symmetrically arranged limiting holes (7), and the outer surface of the piston rod (4) is fixedly connected to two symmetrically arranged limiting strips (8), which are slidably connected inside the corresponding limiting holes (7).
7. A novel oil tanker sampling device according to claim 1, characterized in that: The outer tube body (1) has an outer tube inlet (17) through its surface, and the inner tube body (2) has an inner tube inlet (18) through its surface. The outer tube inlet (17) and the inner tube inlet (18) have the same diameter.