Hydraulic quick locking device of oil transfer arm for wharf chemical transportation
By introducing a composite locking structure into the hydraulic quick-locking device of the oil delivery arm, the problem of loosening of the individual locking structure is solved, achieving higher stability and safety, and improving the device's performance.
Patent Information
- Application Number
- CN202520668705.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-10
AI Technical Summary
The individual locking structure of the hydraulic quick-locking device for oil conveying arms used in chemical transportation at the dock is prone to loosening, leading to the failure of the locking state and affecting the normal use of the oil conveying arm.
A composite locking structure was designed, comprising a compression locking ring, a quick-locking device body, an inclined inner connecting tube, an inclined outer connecting tube, a rotary fastening knob, an adsorption connector, an outer connecting cylinder, and a telescopic connector. The locking ring provides auxiliary support and locking functions through hydraulic drive, thereby enhancing stability.
The stability and safety of the hydraulic quick-locking device for the oil delivery arm have been improved, the risk of damage to the device has been reduced, and its practicality has been enhanced.
Smart Images

Figure CN223794793U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of petrochemical technology, specifically relating to a hydraulic quick-locking device for an oil conveying arm used in the transportation of chemical products at a dock. Background Technology
[0002] Oil transfer arms are used in the petrochemical and port logistics sectors. In the petrochemical industry, they are used to connect loading and unloading operations of liquid materials, especially in the transportation of liquid chemical products such as crude oil. Oil transfer arms can quickly and accurately complete loading and unloading operations, improving work efficiency and reducing personnel contact risks. In the port logistics sector, oil transfer arms are key equipment in terminal loading and unloading operations, mainly used for docking with ships to load and unload oil and other liquids. They are characterized by safety, reliability, and advanced manufacturing processes.
[0003] In the petrochemical industry, oil transfer arms are used to connect the loading and unloading operations of liquid materials. Especially in the transportation of liquid chemical products such as crude oil, oil transfer arms can quickly and accurately complete loading and unloading operations, improve work efficiency and reduce personnel contact risks.
[0004] The hydraulic quick-locking device for oil conveying arms used in chemical transportation at the dock uses the rotation of a hydraulic cylinder to extend or shorten a telescopic locking mechanism. This causes a ring structure, consisting of identical first and second locking components, to clamp or release the connection between the oil conveying arm and the pipeline, achieving rapid locking and unlocking.
[0005] However, the hydraulic quick-locking device for oil conveying arms used in port chemical transportation is usually a separate locking structure. A separate locking mechanism may loosen and lose its locking state, which will affect and interfere with the oil conveying arm.
[0006] This invention addresses the aforementioned problems by specifically designing a hydraulic quick-locking device for a dockside chemical transport arm with an auxiliary locking structure. Utility Model Content
[0007] The purpose of this utility model is to provide a hydraulic quick-locking device for oil conveying arms used in the transportation of chemical products at docks, in order to solve the problem mentioned in the background art that the hydraulic quick-locking device for oil conveying arms used in the transportation of chemical products at docks is usually a separate locking structure. A separate locking mechanism may loosen and lose its locking state, which in turn affects and interferes with the oil conveying arm.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic quick-locking device for an oil conveying arm used for transporting chemical products at a dock, comprising an oil conveying arm body and a compression locking ring disposed on the side of the oil conveying arm body;
[0009] A quick-locking device is provided on the side of the compression locking ring;
[0010] The quick-locking device has an inner inclined connecting tube at its bottom and an outer inclined connecting tube connected to its side. A rotating fastening knob is located on the side of the outer inclined connecting tube, and an adsorption connector is located at the end of the outer inclined connecting tube. An outer connecting cylinder is located inside the quick-locking device, and a telescopic connecting body is located in the middle of the outer connecting cylinder. An inner moving plate is located on the side of the telescopic connecting body, and a tension rod is located on the side of the inner moving plate. The end of the tension rod is connected to a compression locking ring. A connecting vent pipe is connected to the side of the outer inclined connecting tube, and the end of the connecting vent pipe communicates with the telescopic connecting body. When the compression locking ring moves inward, it stretches the telescopic connecting body, causing it to expand and adsorb at the adsorption connector.
[0011] Preferably, the inner diameter of the inclined outer connecting pipe is equal to the outer diameter of the inclined inner connecting pipe, both the inclined inner connecting pipe and the inclined outer connecting pipe are cylindrical structures, and the inclined inner connecting pipe and the inclined outer connecting pipe are connected by inserting and sleeve.
[0012] Preferably, a driving hydraulic cylinder is provided on the side of the quick-locking device body, and the driving hydraulic cylinder is installed and connected to the quick-locking device body by screws.
[0013] Preferably, a side connection mounting post is provided at the middle position on the right side of the quick locking device body, and a connecting flange is provided on the side connection mounting post.
[0014] Preferably, a mounting base is provided at the bottom of the oil conveying arm body, and a through hole is provided at the bottom corner of the mounting base.
[0015] Preferably, a discharge port is provided on the side of the mounting base, and the discharge port is connected to the main body of the oil conveying arm.
[0016] Preferably, an inner arm of the oil delivery arm is provided on the upper side of the main body of the oil delivery arm, and an outer arm of the oil delivery arm is provided on the side of the inner arm of the oil delivery arm.
[0017] Preferably, an inner arm counterweight rod is provided at the bottom middle position of the inner arm of the oil delivery arm, and an inner arm counterweight body is provided at the bottom position of the inner arm counterweight rod.
[0018] Compared with the prior art, this utility model provides a hydraulic quick-locking device for oil conveying arms used in the transportation of chemical products at docks, which has the following beneficial effects:
[0019] An inclined inner connecting pipe is located at the bottom of the quick-locking device. An inclined outer connecting pipe is connected to the side of the inclined inner connecting pipe. A rotating fastening knob is located on the side of the inclined outer connecting pipe. An adsorption connector is located at the end of the inclined outer connecting pipe. An outer connecting cylinder is located inside the quick-locking device. A telescopic connecting body is located in the middle of the outer connecting cylinder. An inner moving plate is located on the side of the telescopic connecting body. A tension rod is located on the side of the inner moving plate. The end of the tension rod is connected to the compression locking ring. A connecting vent pipe is connected to the side of the inclined outer connecting pipe. The end of the air pipe is connected to the telescopic connector. When the squeezing locking ring moves inward, it stretches the telescopic connector, which expands to adsorb at the adsorption connector position. With the improvement of this utility model, it can provide auxiliary support and also play a connecting and locking function, reducing the pressure on the hydraulic quick-locking device of the oil conveying arm for chemical transportation at the dock. Therefore, it can improve the stability and safety of the hydraulic quick-locking device of the oil conveying arm for chemical transportation at the dock, making it less prone to damage, and thus effectively improving the practicality of the hydraulic quick-locking device of the oil conveying arm for chemical transportation at the dock. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the hydraulic quick-locking device for oil conveying arm used in the transportation of chemical products at the dock after installation.
[0021] Figure 2 This is a top view schematic diagram of the hydraulic quick-locking device for oil conveying arm used in the transportation of chemical products at the dock, according to this utility model.
[0022] Figure 3 This is an enlarged structural diagram of the hydraulic quick-locking device for oil conveying arm used in the transportation of chemical products at the dock, at position A.
[0023] In the diagram: 1. Outer arm of the oil delivery arm; 2. Inner arm of the oil delivery arm; 3. Counterweight rod of the inner arm; 4. Counterweight body of the inner arm; 5. Quick-locking device body; 6. Main body of the oil delivery arm; 7. Discharge port; 8. Mounting and connecting base; 9. Drive hydraulic cylinder; 10. Compression locking ring; 11. Adsorption connector; 12. Slanted outer connecting pipe; 13. Slanted inner connecting pipe; 14. Rotary fastening knob; 15. Side connecting mounting column; 16. Inner moving plate; 17. Telescopic connector; 18. Outer connecting cylinder; 19. Connecting vent pipe; 20. Tensioning rod. Detailed Implementation
[0024] 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.
[0025] This utility model provides, for example Figure 1-3 As shown, a hydraulic quick-locking device for an oil conveying arm used in the transportation of chemical products at a dock includes an oil conveying arm body 6 and a compression locking ring 10 disposed on the side of the oil conveying arm body 6; a quick-locking device body 5 is disposed on the side of the compression locking ring 10; an inclined inner connecting pipe 13 is disposed at the bottom of the quick-locking device body 5, an inclined outer connecting pipe 12 is connected to the side of the inclined inner connecting pipe 13, a rotating fastening knob 14 is disposed on the side of the inclined outer connecting pipe 12, an adsorption connector 11 is disposed at the end of the inclined outer connecting pipe 12, an outer connecting cylinder 18 is disposed on the inner side of the quick-locking device body 5, a telescopic connecting body 17 is disposed at the middle of the outer connecting cylinder 18, an inner moving plate 16 is disposed on the side of the telescopic connecting body 17, and an inner moving plate 16 is disposed on the side of the inner moving plate 16. A tension rod 20 is provided at the position, and the end of the tension rod 20 is connected to the compression locking ring 10. A connecting vent pipe 19 is connected to the side of the inclined outer connecting pipe 12. The end of the connecting vent pipe 19 is connected to the telescopic connecting body 17. When the compression locking ring 10 is driven to move inward, it will stretch the telescopic connecting body 17. The telescopic connecting body 17 expands to adsorb the adsorption connecting head 11. After the improvement of this utility model, it can provide auxiliary support and at the same time play a connecting locking function, reducing the pressure on the hydraulic quick locking device of the oil conveying arm for transporting chemical products at the dock. Therefore, it can improve the stability and safety of the hydraulic quick locking device of the oil conveying arm for transporting chemical products at the dock, so that it will not be easily damaged, thereby effectively improving the practicality of the hydraulic quick locking device of the oil conveying arm for transporting chemical products at the dock.
[0026] like Figure 1 and Figure 2 As shown, the inner diameter of the inclined outer connecting pipe 12 is equal to the outer diameter of the inclined inner connecting pipe 13. Both the inclined inner connecting pipe 13 and the inclined outer connecting pipe 12 are cylindrical structures. The inclined inner connecting pipe 13 and the inclined outer connecting pipe 12 are connected by insertion and sleeve. The length of the connecting support pipe can be adjusted by the inclined inner connecting pipe 13 and the inclined outer connecting pipe 12, so that the support pipe can more smoothly contact and support the oil delivery arm body 6.
[0027] like Figure 1 and Figure 2As shown, a driving hydraulic cylinder 9 is provided on the side of the quick-locking device body 5. The driving hydraulic cylinder 9 is installed and connected to the quick-locking device body 5 by screws, and the driving hydraulic cylinder 9 provides the driving force to squeeze the locking ring 10 to move.
[0028] like Figure 1 and Figure 2 As shown, a side connection mounting post 15 is provided at the middle position on the right side of the quick-locking device body 5. A connecting flange is provided on the side connection mounting post 15. The quick-locking device body 5 is installed and connected to the designated position by screws passing through the flange on the side connection mounting post 15.
[0029] like Figure 1 As shown, an installation and connection base 8 is provided at the bottom of the oil transfer arm body 6. A through hole is provided at the bottom corner of the installation and connection base 8. The installation and connection base 8 can make the oil transfer arm body 6 more stably connected to the designated position.
[0030] like Figure 1 As shown, a discharge port 7 is provided on the side of the mounting base 8. The discharge port 7 is connected to the main body 6 of the oil conveying arm. An inner arm 2 of the oil conveying arm is provided on the upper side of the main body 6 of the oil conveying arm. An outer arm 1 of the oil conveying arm is provided on the side of the inner arm 2. An inner arm counterweight rod 3 is provided at the bottom middle position of the inner arm 2. An inner arm counterweight body 4 is provided at the bottom position of the inner arm counterweight rod 3. The inner arm counterweight body 4, in cooperation with the main counterweight and the auxiliary counterweight, keeps the inner arm and the outer arm of the oil conveying arm balanced in the no-load state, ensuring that the oil conveying arm can be stably in a specific position when it is not working, and has a tendency to return to the non-working state.
[0031] 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 hydraulic quick locking device for oil transfer arms used in chemical transportation at ports, comprising an oil transfer arm body (6) and an extrusion locking ring (10) provided at a side position of the oil transfer arm body (6) of the oil transfer arm body (6); A quick locking device body (5) is provided at a side position of the extrusion locking ring (10); characterized in that A slanted inner connecting pipe (13) is provided at a bottom position of the quick locking device body (5), a slanted outer connecting pipe (12) is connected at a side position of the slanted inner connecting pipe (13), a rotating fastening knob (14) is provided at a side position of the slanted outer connecting pipe (12), a suction connecting head (11) is provided at an end position of the slanted outer connecting pipe (12), an outer connecting cylinder (18) is provided at an inner side position of the quick locking device body (5), an extension connecting body (17) is provided at a middle position of the outer connecting cylinder (18), an inner moving plate (16) is provided at a side position of the extension connecting body (17), a stretching rod (20) is provided at a side position of the inner moving plate (16), the stretching rod (20) is connected to the extrusion locking ring (10) at an end position thereof, a connecting air pipe (19) is connected to a side of the slanted outer connecting pipe (12), an end of the connecting air pipe (19) is in communication with the extension connecting body (17), when the extrusion locking ring (10) is driven to move inward, the extension connecting body (17) is stretched, and the extension connecting body (17) is expanded to perform suction at a position of the suction connecting head (11).
2. The hydraulic quick locking device of the oil transfer arm for chemical transportation in a dock according to claim 1, characterized in that: The inner diameter of the slanted outer connecting pipe (12) is equal to the outer diameter of the slanted inner connecting pipe (13), the slanted inner connecting pipe (13) and the slanted outer connecting pipe (12) are both in a cylindrical structure, and the slanted inner connecting pipe (13) and the slanted outer connecting pipe (12) are connected in a plug-in sleeve connection mode.
3. The hydraulic quick locking device of the oil transfer arm for chemical transportation in a dock according to claim 1, characterized in that: A driving hydraulic cylinder (9) is provided at a side position of the quick locking device body (5), and the driving hydraulic cylinder (9) is installed and connected to the quick locking device body (5) by screws.
4. The hydraulic quick locking device of the oil transfer arm for chemical transportation in a dock according to claim 1, characterized in that: A side connecting mounting column (15) is provided at a right middle position of the quick locking device body (5), and a connecting flange plate is provided on the side connecting mounting column (15).
5. The hydraulic quick locking device of the oil transfer arm for chemical transportation in a dock according to claim 1, characterized in that: An installation connecting base (8) is provided at a bottom position of the oil transfer arm body (6), and a through hole is provided at a bottom corner position of the installation connecting base (8).
6. The hydraulic quick locking device of the oil transfer arm for chemical transportation in a dock according to claim 5, characterized in that: A discharge connecting pipe opening (7) is provided at a side position of the installation connecting base (8), and the discharge connecting pipe opening (7) is in communication with the oil transfer arm body (6).
7. The hydraulic quick locking device of the oil transfer arm for chemical transportation in a dock according to claim 1, characterized in that: An oil transfer arm inner arm (2) is provided at an upper side position of the oil transfer arm body (6), and an oil transfer arm outer arm (1) is provided at a side position of the oil transfer arm inner arm (2).
8. The hydraulic quick locking device of the oil transfer arm for chemical transportation in a dock according to claim 7, characterized in that: An inner arm counterweight rod (3) is provided at a middle bottom position of the oil transfer arm inner arm (2), and an inner arm counterweight body (4) is provided at a bottom position of the inner arm counterweight rod (3).