Portable oil pouring device for oil tank
By using a key-and-groove combination structure and positioning mechanism in the portable oil pourer, the problems of complex oil pourer connection and leakage are solved, achieving simple operation and complete oil discharge, thus avoiding economic losses.
Patent Information
- Application Number
- CN202520326572.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing oil reversing devices have cumbersome connections and are prone to oil leaks, and residual oil is difficult to drain, resulting in economic losses.
A portable oil drainer was designed, which achieves easy connection through a movable sleeve and pipe clamp structure with sliding key and groove cooperation, and ensures sealing by combining positioning mechanism and sealing ring, and uses compressed air delivery pipe to drain residual oil.
It simplifies operation, reduces oil leakage, avoids residual oil loss, and meets the requirements for the transportation of hazardous chemicals.
Smart Images

Figure CN223836305U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a portable oil pourer for oil tanks, and pertains to the field of oil pourer technology. Background Technology
[0002] During the filling process, oil products are often overloaded to varying degrees after filling due to factors such as oil specific gravity, temperature, tank volume, and weight difference. In order to avoid overloading of oil tanks and to ensure that oil tank transportation complies with national requirements for the hazardous chemical transportation industry, it is necessary to unload the overloaded oil products.
[0003] Existing methods for draining oil typically involve connecting an oil pump to the unloading pipeline of the oil tank, using the pump to extract the oil. However, connecting the oil pump is a complicated process and requires a certain level of skill from the operators. Improper operation can lead to oil leakage during the draining process. After the overloaded oil is drained, the unloading pipeline of the oil tank needs to be sealed, which can result in residual oil in the pump pipeline that cannot be drained, causing economic losses. Summary of the Invention
[0004] The purpose of this invention is to design a portable oil pourer that is easy to install and can reduce oil loss.
[0005] This utility model includes an oil pipeline. At least one end of the oil pipeline is fitted with a movable sleeve via a key and groove mechanism. The outer end of the movable sleeve has a set of expansion joints along its circumference, connecting its inner and outer surfaces. A pipe clamp with an end opening is provided on the outside of the movable sleeve corresponding to the expansion joint. Bolt holes are provided at both ends of the pipe clamp, and the two ends of the pipe clamp are connected by bolts. A sealing ring is installed at the end of the oil pipeline. A positioning mechanism is provided between the oil pipeline and the movable sleeve. An oil outlet pipe and a compressed air delivery pipe with a one-way valve are respectively provided in the middle section of the oil pipeline.
[0006] Furthermore, the positioning mechanism includes a positioning post fixed on the outer surface of the movable sleeve and perpendicular to its axis, and a hook connected to the outer surface of the oil pipe via a shaft, with the hook portion hanging on the positioning post.
[0007] Furthermore, a set of axial keys is provided along the circumference on the outer surface of the oil pipeline end, and keyways for key mating are provided on the inner surface of the movable sleeve.
[0008] Furthermore, the inner end of the movable sleeve is provided with a keyway that mates with the oil pipeline, and its outer end is provided with a contraction and expansion joint.
[0009] Furthermore, movable sleeves are installed at both ends of the oil pipeline.
[0010] This utility model is equipped with a positioning mechanism. After the oil unloading pipe is placed into the movable sleeve and comes into contact with the sealing ring, the movable sleeve is slid to the side of the oil unloading pipe and locked. Then, the positioning column can be pulled with the hook to complete the connection of the pipeline. The operation is simple and convenient. After the positioning column is tightened by the hook, the rebound force of the sealing ring ensures the seal between the oil unloading pipe and the oil delivery pipe, avoiding the phenomenon of oil leakage.
[0011] This utility model is equipped with an oil outlet and a compressed air delivery pipe. When the overloaded oil in the oil tank is discharged and the unloading pipe is blocked, compressed air can be delivered to the oil delivery pipe through the compressed air delivery pipe to discharge the remaining oil in the oil outlet pipe, thus avoiding oil residue and loss. Attached Figure Description
[0012] Figure 1 This is a front view of an embodiment of the present utility model;
[0013] Figure 2 for Figure 1 A cross-sectional view along the AA direction;
[0014] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;
[0015] Figure 4 This is a top view of an embodiment of the present utility model;
[0016] Figure 5 for Figure 1 Diagram showing the usage status of the positioning mechanism;
[0017] The components are: 1. oil delivery pipe, 2. sliding key, 3. moving sleeve, 4. expansion joint, 5. pipe clamp, 6. bolt, 7. positioning post, 8. hook base, 9. hook, 10. sealing ring, 11. oil outlet pipe, 12. oil outlet valve, 13. one-way valve, 14. compressed air delivery pipe, and 15. oil unloading pipe. Detailed Implementation
[0018] by Figure 1 Define the up, down, left, right, front, and back directions in this embodiment.
[0019] As shown in the figure, this embodiment includes an oil supply pipe 1. An oil outlet pipe 11 is located at the lower middle part of the oil supply pipe 1, and is connected to the oil supply pipe 1. An oil outlet valve 12 is located at the upper part of the outlet pipe 1. In use, opening the oil outlet valve 12 allows oil in the oil supply pipe 1 to flow out through the outlet pipe 11, facilitating oil collection. A one-way valve 13 is located at the upper middle part of the oil supply pipe 1. A compressed air delivery pipe 14 is located above the one-way valve 13. One end of the compressed air delivery pipe 14, near the oil supply pipe 1, is connected to the oil supply pipe 1 via the one-way valve 13. In this embodiment, the other end of the compressed air delivery pipe 14 is connected to an air pump, which, in use, can deliver compressed air to the oil supply pipe 1 and prevent oil backflow into the compressed air delivery pipe 14 via the one-way valve 13. In this embodiment, the end of each tubular structure near the middle of the oil supply pipe 1 is defined as the inner end, and the other end is defined as the outer end. A set of sliding keys 2 is provided at both the left and right ends of the oil pipeline 1. The sliding keys 2 are located on the outer surface of the oil pipeline 1 and are evenly distributed along the circumference of the oil pipeline 1. Each sliding key 2 extends axially from the outer end of the oil pipeline 1 toward the middle of the oil pipeline 1.
[0020] Movable sleeves 3 are provided on the outer periphery of both ends of the oil pipeline 1. Each movable sleeve 3 has a set of sliding grooves on its inner end. These grooves are formed on the inner surface of the movable sleeve 3 and are slidably connected to the sliding key 2. In use, each movable sleeve 3 can move left and right at both ends of the oil pipeline 1 through the connection between the sliding grooves and the sliding key 2. Each movable sleeve 3 has a set of expansion joints 4 on its outer end. These expansion joints 4 are evenly distributed along the circumference of the movable sleeve 3, allowing the inner and outer surfaces of the movable sleeve 4 to communicate. Corresponding to the position of each expansion joint 4, a pipe clamp 5 is provided on the outer surface of the movable sleeve 3. The pipe clamp 5 has an opening at its upper end, and bolt holes are provided at both ends of the opening. Bolts 6 are screwed into the bolt holes to connect the two ends of the pipe clamp 5. In use, tightening the bolts 6 can reduce the inner diameter of the pipe clamp 5, and the inner diameter of the outer end of the movable sleeve 3 can be reduced through the expansion joints 4.
[0021] A positioning mechanism is provided between the oil pipe 1 and the movable sleeve 3. The positioning mechanism includes a positioning post 7, which is fixedly installed on the outer surface of each movable sleeve 3 and is arranged perpendicular to the axial direction of the movable sleeve 3. A hook base 8 is provided on the outer surface of the left and right parts of the oil pipe 1, and the hook base 8 is fixedly connected to the outer surface of the oil pipe 1. A hook 9 is provided in the hook base 8. One end of the hook 9 near the oil pipe 1 is rotatably connected to the hook base 8 through a shaft, and the other end is a hook with a notch. The shape of the notch matches the positioning post 7. In use, rotating the hook 9 allows its hook to be hooked onto the positioning post 7. In this embodiment, two sets of positioning mechanisms are provided between each movable sleeve 3 and the oil pipe 1, and the two sets of positioning mechanisms are arranged symmetrically vertically.
[0022] In this embodiment, sealing rings 10 are provided at both outer ends of the oil pipeline 1. The sealing rings 10 are made of flexible materials such as rubber. Each sealing ring 10 matches the shape of the end of the oil pipeline 1 and is fixedly installed at both ends of the oil pipeline 1.
[0023] In this embodiment, when in use, the left and right ends of the oil supply pipe 1 need to be connected to the unloading pipes 15 of the overloaded oil tank and the empty oil tank, respectively. When connecting, first put the unloading pipe 15 into the movable sleeve 3 and make it contact the sealing ring 10. Then slide the movable sleeve 3 towards the unloading pipe 15. After sliding to the appropriate position, tighten the bolt 6. The outer end of the movable sleeve 3 is squeezed by the pipe clamp 5, so that the outer end of the movable sleeve 3 locks the unloading pipe 15. After locking, pull the movable sleeve 3 to one side of the oil supply pipe 1 and rotate the hook 9 so that the hook of the hook 9 is hooked on the positioning post 7. The connection between the oil supply pipe 1 and the unloading pipe 15 is sealed by the rebound force of the sealing ring 10, thus completing the connection between the oil supply pipe 1 and the unloading pipe 15. After connection, open the unloading pipes 15 at both ends to discharge the overloaded oil. The overloaded oil will be transported to the empty oil tank through pressure difference. After the overloaded oil is discharged, close the unloading pipes 15 at both ends, then open the oil outlet valve 12, and simultaneously start the air pump connected to the compressed air delivery pipe 14 to deliver compressed air into the oil delivery pipe 1, discharging the oil in the oil delivery pipe 1 through the oil outlet pipe 11. After the oil in the oil delivery pipe 1 is discharged, close the air pump and the oil outlet valve 12, then loosen all bolts 6 and remove the moving sleeve 3 and the oil delivery pipe 1.
Claims
1. A portable oil pourer for oil tanks, characterized in that: It includes an oil pipeline, with a movable sleeve installed on the periphery of at least one end of the oil pipeline via a key and groove joint. The outer end of the movable sleeve is provided with a set of expansion joints along its circumference, making its inner and outer surfaces communicate. A pipe clamp with an end opening is provided on the outer side of the movable sleeve corresponding to the position of the expansion joint. Bolt holes are provided at both ends of the pipe clamp, and the two ends of the pipe clamp are connected by bolts. A sealing ring is installed at the end of the oil pipeline, and a positioning mechanism is provided between the oil pipeline and the movable sleeve. An oil outlet pipe and a compressed air delivery pipe with a one-way valve are respectively provided in the middle section of the oil pipeline.
2. The portable oil pourer for oil tanks according to claim 1, characterized in that: The positioning mechanism includes a positioning column fixed on the outer surface of the movable sleeve and perpendicular to its axis, and a hook connected to the outer surface of the oil pipeline via a shaft, with the hook portion hanging on the positioning column.
3. The portable oil pourer for oil tanks according to claim 1 or 2, characterized in that: A set of axial keys is provided along the circumference on the outer surface of the oil pipeline end, and keyways for each key are provided on the inner surface of the movable sleeve.
4. The portable oil pourer for oil tanks according to claim 3, characterized in that: The inner end of the movable sleeve is provided with a keyway that mates with the oil pipeline, and the outer end is provided with a contraction and expansion joint.
5. The portable oil pourer for oil tanks according to claim 1 or 2, characterized in that: Movable sleeves are installed at both ends of the oil pipeline.