A lubricating oil detection sampling device

Abstract

The utility model discloses a lubricating oil detection sampling device relates to sampling device technical field, in view of the lack of flexibility in prior art structure design, it is difficult to adapt to the sampling demand under different working conditions and the control precision of sampling volume is insufficient problem, present and propose the following scheme, including fixed shell, the bottom welding of fixed shell one side outer wall has the first fixed plate, and one end welding of first fixed plate has the pipe clamp and inserts the sampling pipe of fixedly having, the top welding of fixed shell one side outer wall has the second fixed plate. The utility model discloses through setting up the connecting mechanism, its unique structure design allows the rotary connection of connecting plate to be connected, and adjacent connecting mechanism can realize annular combination and parallel combination through the rotating rod. This innovative design makes sampling device when facing complex equipment layout and different sampling position demand, can show outstanding flexibility and adaptability.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, and in particular to a sampling device for testing lubricating oil. Background Technology

[0002] As a critical medium for ensuring the normal operation of mechanical equipment, the quality testing of lubricating oil is of paramount importance. In the lubricating oil quality testing process, the sampling stage is fundamental to obtaining representative samples, directly affecting the accuracy and reliability of subsequent test results. Accurate sampling can truly reflect the quality status of the entire batch of lubricating oil, providing crucial evidence for determining whether it meets usage standards. However, in practice, traditional lubricating oil testing and sampling devices have revealed many problems.

[0003] On the one hand, some devices lack flexibility in their structural design, making it difficult to adapt to sampling requirements under different working conditions. For example, in some complex equipment environments, the fixed connection mechanism of the sampling device makes it difficult to easily adjust its position and angle, resulting in difficulty in accurately extracting lubricating oil samples from the required location, thus affecting the comprehensiveness and accuracy of the test results.

[0004] On the other hand, existing devices lack sufficient precision in controlling the sampling quantity during the sampling process, making it unsuitable for some testing items with strict requirements on sampling quantity. Moreover, the operation of some devices is quite cumbersome, requiring operators to possess high levels of professional skills and experience; otherwise, sampling errors can easily occur, reducing sampling efficiency and the reliability of test results. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a lubricating oil testing and sampling device, which overcomes the deficiencies of existing technologies and effectively solves the problems of insufficient structural design flexibility, difficulty in adapting to sampling requirements under different working conditions, and insufficient control accuracy of sampling quantity in existing technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A lubricating oil testing sampling device includes a fixed shell. A first fixed plate is welded and fixed to the bottom of one side of the outer wall of the fixed shell, and a pipe clamp is welded and fixed to one end of the first fixed plate. A sampling tube is inserted and fixed inside the pipe clamp. A second fixed plate is welded and fixed to the top of one side of the outer wall of the fixed shell, and a push rod motor is installed and fixed to one bottom end of the second fixed plate. A connecting rod is installed and fixed to the bottom end of the push rod motor, and a piston is welded and fixed to the bottom of the connecting rod. A connecting mechanism is welded and fixed to the other side of the outer wall of the fixed shell. The connecting mechanism includes a connecting shell, connecting plates that are staggered and movable at both ends of the connecting shell, and limiting components that are symmetrically connected to both ends of one side of the outer wall of the connecting shell. The limiting components include a fixed frame, an insert rod inserted into one side of the outer wall of the fixed frame, a limiting block welded and fixed to one end of the insert rod, and a telescopic spring that is movable on the wall of the insert rod.

[0007] Preferably, a mounting plate is welded and fixed to the top of the fixed shell, and the mounting plate is connected and fixed to the external lifting equipment by bolts.

[0008] Preferably, a storage battery is installed and fixed inside the fixed housing, and the push rod motor is electrically connected to the storage battery through a wire.

[0009] Preferably, the outer diameter of the piston is adapted to the inner diameter of the sampling tube.

[0010] Preferably, one end of each connecting plate is rotatably connected to a rotating rod, and adjacent connecting mechanisms are combined in a ring or parallel configuration via the rotating rod.

[0011] Preferably, the two ends of the outer wall of one side of the connecting shell are respectively staggered with the upper and lower ends, and the inserts are slidably engaged with the limiting block. The outer wall of the connecting plate near the limiting block is provided with equally spaced slots, and the slots are plugged into the limiting block.

[0012] Preferably, the fixing frame is welded and fixed to the outer wall of the connecting shell, and the telescopic spring is located between the fixing frame and the limiting block.

[0013] The beneficial effects of this utility model are as follows: By incorporating a connecting mechanism, its unique structural design allows for rotatable connections between the connecting plates, and adjacent connecting mechanisms can achieve ring-shaped and parallel combinations via rotating rods. This innovative design enables the sampling device to demonstrate exceptional flexibility and adaptability when faced with complex equipment layouts and varying sampling location requirements. Operators can easily adjust the position and angle of the sampling device according to actual conditions, ensuring accurate extraction of lubricating oil samples from various key locations. This significantly improves the comprehensiveness and accuracy of the test results, providing strong support for the accurate assessment of lubricating oil quality. The limiting components in the device further enhance its functionality. The insertion and engagement of the limiting block with the slot on the connecting plate, along with the elastic force provided by the telescopic spring, ensures stable and reliable fixation after the position of the connecting mechanism is adjusted. This feature not only avoids sampling errors caused by device shaking or displacement during sampling, ensuring the accuracy and stability of sampling, but also reduces the additional burden on operators and improves sampling efficiency. Furthermore, this stable fixing method helps extend the device's service life, reduces wear and tear caused by frequent adjustments and unstable operation, and provides a reliable guarantee for long-term, efficient lubricant testing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a lubricating oil testing and sampling device proposed in this utility model; Figure 2 This is a schematic diagram of the connection mechanism of a lubricating oil testing and sampling device proposed in this utility model; Figure 3 This is a schematic diagram of the limiting component structure of a lubricating oil testing sampling device proposed in this utility model; Figure 4 This is a schematic diagram of the parallel assembly of multiple integral structures of a lubricating oil detection and sampling device proposed in this utility model. Figure 5 This is a schematic diagram of a multi-group integral ring assembly of a lubricating oil testing and sampling device proposed in this utility model.

[0015] In the diagram: 1. Fixed shell; 2. Mounting plate; 3. First fixed plate; 4. Pipe clamp; 5. Sampling tube; 6. Second fixed plate; 7. Push rod motor; 8. Connecting rod; 9. Piston; 10. Connecting mechanism; 11. Connecting shell; 12. Connecting plate; 13. Rotating rod; 14. Limiting assembly; 15. Fixing frame; 16. Insert rod; 17. Limiting block; 18. Telescopic spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example:

[0017] Reference Figure 1-5A lubricating oil testing sampling device includes a fixed shell 1. A first fixed plate 3 is welded and fixed to the bottom of one side of the outer wall of the fixed shell 1. A pipe clamp 4 is welded and fixed to one end of the first fixed plate 3. A sampling tube 5 is inserted and fixed inside the pipe clamp 4. A second fixed plate 6 is welded and fixed to the top of one side of the outer wall of the fixed shell 1. A push rod motor 7 is installed and fixed to one bottom end of the second fixed plate 6. A connecting rod 8 is installed and fixed to the bottom end of the push rod motor 7. A piston 9 is welded and fixed to the bottom of the connecting rod 8. A connecting mechanism 10 is welded and fixed to the other side of the outer wall of the fixed shell 1. The connecting mechanism 10 includes a connecting shell 11, connecting plates 12 that are inserted and moved between the two ends of the connecting shell 11 respectively, and limiting components 14 that are symmetrically connected to the two ends of one side of the outer wall of the connecting shell 11. The limiting component 14 includes a fixed frame 15, a rod 16 inserted into one side of the outer wall of the fixed frame 15, a limiting block 17 welded and fixed to one end of the rod 16, and a telescopic spring 18 that is sleeved on the rod wall of the rod 16. A mounting plate 2 is welded and fixed to the top of the fixed housing 1. The mounting plate 2 is connected and fixed to the external lifting equipment by bolts. The mounting plate 2 is welded to the top of the fixed housing 1, and its function is to establish a connection bridge between the device and the external lifting equipment. In practical applications, there are various types of external lifting equipment, such as common electric hoists and hydraulic lifts. The mounting plate 2 is pre-set with matching bolt holes. By passing high-strength bolts through the holes of the mounting plate 2 and connecting them to the corresponding mounting parts of the external lifting equipment, and tightening them with nuts, a stable connection between the two can be achieved. In this way, the external lifting equipment can accurately control the lifting action of the entire sampling device to meet the lubricating oil sampling needs at different heights. For example, in a large oil storage tank, the sampling device can be accurately delivered to different liquid level depths for sampling using the lifting equipment. A battery is installed and fixed inside the fixed housing 1, and the push rod motor 7 is electrically connected to the battery via wires. The fixed housing 1 has a dedicated space for installing the battery, which can be fixed with screws or clips to ensure it is stable and does not wobble during device operation. The battery is electrically connected to the push rod motor 7 via wires. The selection of wires must be determined based on the power and operating current of the push rod motor 7 to ensure the stability and safety of power transmission. During connection, one end of the wire is firmly connected to the positive and negative output terminals of the battery, and the other end is connected to the power interface of the push rod motor 7, ensuring correct polarity. In this way, the battery can continuously provide a stable power supply to the push rod motor 7, ensuring its normal operation and driving the piston 9. The outer diameter of the piston 9 is matched with the inner diameter of the sampling tube 5. The outer diameter of the piston 9 is precisely designed to fit tightly with the inner diameter of the sampling tube 5. In the actual manufacturing process, high-precision machining techniques, such as CNC lathe machining, are employed to ensure that the outer diameter tolerance of the piston 9 is controlled within an extremely small range, so as to achieve a precise fit with the inner diameter of the sampling tube 5. This tight fit is crucial. When the piston 9 moves inside the sampling tube 5, it can form a good sealing effect, effectively preventing lubricating oil leakage during the sampling process, ensuring the accuracy of the sampling quantity, and providing reliable samples for subsequent testing. One end of each connecting plate 12 is rotatably connected to a rotating rod 13. Adjacent connecting mechanisms 10 are combined in a ring or parallel configuration via the rotating rod 13. The outer wall of one side of the connecting shell 11 has staggered insertion slots at both ends, which slide in conjunction with the limiting block 17. The outer wall of the connecting plate 12 near the limiting block 17 has equally spaced slots, which insert into the limiting block 17. The staggered insertion slots at both ends of the outer wall of the connecting shell 11 are precisely matched in size to the limiting block 17, ensuring a smooth sliding fit. During assembly, the limiting block 17 is aligned with the insertion slot and inserted, ensuring it can slide freely within the slot. The equally spaced slots on the outer wall of the connecting plate 12 near the limiting block 17 are perfectly matched in shape and size to achieve a precise insertion fit. When the angle of the connecting mechanism needs to be adjusted, the operator only needs to apply external force to the limiting block 17 to overcome the elastic force of the telescopic spring 18, causing the limiting block 17 to slide out of the current slot. Then, the connecting plate 12 is rotated to the desired angle, and the limiting block 17 is released. Under the action of the telescopic spring 18, the limiting block 17 will automatically engage with the corresponding slot, thereby achieving a quick and stable adjustment of the angle of the connecting mechanism. The fixing frame 15 is welded to the outer wall of the connecting shell 11. The telescopic spring 18 is located between the fixing frame 15 and the limiting block 17. The fixing frame 15 is firmly connected to the outer wall of the connecting shell 11 through a welding process. During the welding process, the welding quality must be ensured to avoid problems such as incomplete welding or detachment. The insertion rod 16 passes through the reserved hole on one side of the outer wall of the fixing frame 15 and can slide freely in the hole. The limiting block 17 is welded to one end of the insertion rod 16 to ensure a firm connection between the two. The telescopic spring 18 is sleeved on the rod wall of the insertion rod 16 and is located between the fixing frame 15 and the limiting block 17. When the limiting block 17 is subjected to external force, it will compress the telescopic spring 18, causing the insertion rod 16 to slide in the fixing frame 15, thereby realizing the separation or insertion of the limiting block 17 and the slot on the connecting plate 12, providing a convenient and reliable control method for the angle adjustment and fixation of the connecting mechanism.

[0018] Working principle: First, after the device is securely connected to the external lifting equipment via the mounting plate 2, the entire device is accurately positioned to the lubricating oil storage location to be sampled, such as inside the oil tank, using the power of the external lifting equipment. At this point, with the sampling tube 5 secured by the pipe clamp 4, one end of it is already submerged in the lubricating oil. Next, the push rod motor 7 starts working. The power output shaft of the push rod motor 7 drives the connecting rod 8 to move upward, which in turn pushes the piston 9 to move upward within the sampling tube 5. Because the outer diameter of the piston 9 is closely matched with the inner diameter of the sampling tube 5, the upward movement of the piston 9 creates a negative pressure environment within the sampling tube 5. Under atmospheric pressure, lubricating oil is smoothly drawn into the sampling tube 5. By controlling the running time and stroke of the push rod motor 7, the amount of lubricating oil drawn into the sampling tube 5 can be precisely controlled to meet the sampling volume requirements of different testing items. The connecting mechanism plays a crucial role when the sampling position or angle needs to be adjusted. The operator manually operates the limiting component, applying external force to the limiting block 17 to overcome the elastic force of the telescopic spring 18, causing the limiting block 17 to slide out of its current slot on the connecting plate 12. At this time, the connecting plate 12 can rotate around the rotating rod 13. Since adjacent connecting mechanisms are combined in a ring or parallel configuration via the rotating rod 13, the shape and angle of the entire connecting mechanism can be flexibly adjusted according to actual needs. Once adjusted to the appropriate position, the limiting block 17 is released. Under the elastic force of the telescopic spring 18, the limiting block 17 automatically engages in the new slot on the connecting plate 12, achieving stable fixation of the connecting mechanism's position and ensuring that the sampling device can accurately align with the new sampling position. After sampling is completed, the push rod motor 7 is controlled again, driving the connecting rod 8 and piston 9 to move downwards. The downward movement of piston 9 pushes out the lubricating oil extracted from the sampling tube 5 for subsequent testing and analysis. Throughout the operation, the battery continuously provides a stable power supply to the push rod motor 7, ensuring the normal operation of the device. Simultaneously, the coordinated action of the connecting mechanism and limiting components allows the sampling device to flexibly adapt to various complex sampling environments, efficiently and accurately completing the lubricating oil sampling task and providing reliable sample support for lubricating oil quality testing.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lubricating oil testing and sampling device, comprising a fixed housing (1), characterized in that, A first fixing plate (3) is welded and fixed to the bottom of one side of the outer wall of the fixed shell (1), and a pipe clamp (4) is welded and fixed to one end of the first fixing plate (3). A sampling tube (5) is inserted and fixed inside the pipe clamp (4). A second fixing plate (6) is welded and fixed to the top of one side of the outer wall of the fixed shell (1), and a push rod motor (7) is installed and fixed to one bottom end of the second fixing plate (6). A connecting rod (8) is installed and fixed to the bottom end of the push rod motor (7), and a piston (9) is welded and fixed to the bottom of the connecting rod (8). A connecting mechanism (10) is welded and fixed on the other side of the outer wall. The connecting mechanism (10) includes a connecting shell (11), connecting plates (12) that are interlocked and movable at both ends of the connecting shell (11), and limiting components (14) that are symmetrically connected to both ends of the outer wall of one side of the connecting shell (11). The limiting component (14) includes a fixing frame (15), a plug rod (16) that is inserted into the outer wall of one side of the fixing frame (15), a limiting block (17) that is welded and fixed to one end of the plug rod (16), and a telescopic spring (18) that is sleeved on the wall of the plug rod (16).

2. The lubricating oil testing and sampling device according to claim 1, characterized in that, The top of the fixed shell (1) is welded and fixed with an installation plate (2), and the installation plate (2) is connected and fixed to the external lifting equipment by bolts.

3. The lubricating oil testing and sampling device according to claim 1, characterized in that, The battery is installed and fixed inside the fixed housing (1), and the push rod motor (7) is electrically connected to the battery through wires.

4. The lubricating oil testing and sampling device according to claim 1, characterized in that, The outer diameter of the piston (9) is adapted to the inner diameter of the sampling tube (5).

5. The lubricating oil testing and sampling device according to claim 1, characterized in that, One end of each connecting plate (12) is rotatably connected to a rotating rod (13), and adjacent connecting mechanisms (10) are combined in a ring or parallel manner through the rotating rod (13).

6. The lubricating oil testing and sampling device according to claim 1, characterized in that, The two ends of the outer wall of the connecting shell (11) are staggered and have slots, and the slots are in sliding fit with the limiting block (17). The outer wall of the connecting plate (12) near the limiting block (17) is provided with slots that are evenly distributed, and the slots are in plug-in fit with the limiting block (17).

7. The lubricating oil testing and sampling device according to claim 1, characterized in that, The fixing frame (15) is welded to the outer wall of the connecting shell (11), and the telescopic spring (18) is located between the fixing frame (15) and the limiting block (17).

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