Vehicle-mounted storable top-mounted oil feeding crane pipe
By designing a retractable loading arm for vehicle use, and adopting a folding storage structure and a high-strength rotary joint, the problem of inconvenient storage of automotive loading arms in vehicles is solved, achieving flexible use and long-life sealing performance of the loading arm.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-03-31
AI Technical Summary
Existing automotive fuel loading arms are inconvenient to store in vehicles, affecting their usability.
A vehicle-mounted retractable loading arm was designed, which adopts a foldable and retractable structure, including a column, connecting frame, vertical tube, rotary joint and multi-arm structure. It utilizes a rotary joint made of high-strength aluminum alloy and a sealing ring made of PTFE material to achieve flexible rotation and excellent sealing performance.
It enables easy deployment and retrieval of the fuel loading arm, is lightweight and easy to use, meets the needs of efficient fuel delivery, adapts to harsh environments, has good sealing performance and long service life.
Smart Images

Figure CN224062442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loading arm technology, specifically a vehicle-mounted retractable loading arm. Background Technology
[0002] Currently, the standards for the integrity of oil depot equipment stipulate that the dispensing pipe of a truck-mounted loading arm must be inserted to the bottom of the tanker truck. At present, oil depot filling equipment mainly consists of pneumatic or manual loading arms, which insert the dispensing port into the tank opening to create a spray-type dispensing action.
[0003] In practical use, automotive fuel loading arms need to be longer to facilitate the transfer of fuel within the vehicle. However, longer fuel loading arms are inconvenient to store in the vehicle, affecting their usability. Utility Model Content
[0004] The purpose of this utility model is to provide a vehicle-mounted retractable upper-mounted fuel loading arm to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vehicle-mounted retractable upper-mounted fuel loading arm, including a column, a connecting frame fixedly installed on one side of the column, a vertical pipe installed on the connecting frame, and a connecting pipe connected to the bottom of the vertical pipe through a rotary joint.
[0006] The top of the vertical tube is connected to one end of the inner arm via a rotary joint two, and the other end of the inner arm is connected to one end of the curved tube via a rotary joint three. The other end of the curved tube is connected to one end of the outer arm, and the other end of the outer arm is connected to the vertical tube via a rotary joint four.
[0007] Preferably, a flange is installed at the bottom of the connecting pipe.
[0008] Preferably, a U-shaped frame is provided on one side of the outer arm, and a spring cylinder is installed on the U-shaped frame. The output end of the spring cylinder is connected to a connecting piece, and the connecting piece is sleeved on the bent pipe.
[0009] Preferably, the bent pipe is connected to the outer arm via a rotary joint.
[0010] Preferably, a shaft hole is provided on one side of the column, an arm support shaft is installed in the shaft hole, and an mounting plate is installed at one end of the arm support shaft, the mounting plate being fixed to one side of the vertical pipe.
[0011] Preferably, a connecting frame is welded to one side of the column.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] It adopts a foldable and retractable loading arm structure design, which features simple unfolding and retraction, and is lightweight. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a front view structural diagram of the present invention;
[0016] Figure 3 This is a schematic diagram of the column structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the arm support shaft structure of this utility model.
[0018] In the diagram: 1. Column; 2. Connecting frame; 3. Vertical pipe; 4. Rotary joint one; 5. Connecting pipe; 6. Flange; 7. Rotary joint two; 8. Inner arm; 9. Rotary joint three; 10. Bend; 11. Outer arm; 12. Rotary joint four; 13. Vertical pipe; 14. U-shaped frame; 15. Spring cylinder; 16. Connecting piece; 17. Mounting plate; 18. Loading arm support shaft; 19. Connecting frame; 20. Shaft hole. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a vehicle-mounted retractable top-mounted oil loading arm, including a column 1, a connecting frame 2 fixedly installed on one side of the column 1, a vertical pipe 3 installed on the connecting frame 2, and a connecting pipe 5 connected to the bottom of the vertical pipe 3 through a rotary joint 4.
[0021] The top of the vertical pipe 3 is connected to one end of the inner arm 8 via a rotary joint 2 7, and the other end of the inner arm 8 is connected to one end of the bent pipe 10 via a rotary joint 3 9. The other end of the bent pipe 10 is connected to one end of the outer arm 11, and the other end of the outer arm 11 is connected to the vertical pipe 13 via a rotary joint 4 12.
[0022] In this utility model, a flange 6 is installed at the bottom of the connecting pipe 5.
[0023] In this utility model, a U-shaped frame 14 is provided on one side of the outer arm 11, and a spring cylinder 15 is installed on the U-shaped frame 14. The output end of the spring cylinder 15 is connected to a connecting piece 16, and the connecting piece 16 is sleeved on the bent pipe 10.
[0024] In this utility model, the bent pipe 10 is connected to the outer arm 11 through a rotary joint 5.
[0025] In this utility model, a shaft hole 20 is provided on one side of the column 1, and an arm support shaft 18 is installed in the shaft hole 20. An mounting plate 17 is installed at one end of the arm support shaft 18 and the mounting plate 17 is fixed on one side of the vertical tube 3.
[0026] In this utility model, a connecting frame 19 is welded to one side of the column 1.
[0027] This utility model features a rotary joint made of high-strength aluminum alloy, precision-machined using CNC machine tools, and incorporating a double-raceway support structure for flexible and reliable rotation. The rotary joint boasts high load-bearing capacity and smooth operation. Its unique main sealing ring structure utilizes PTFE-reinforced polytetrafluoroethylene material, with a polished sealing surface for superior and reliable sealing performance, strong wear and corrosion resistance, and a long service life. The main and auxiliary sealing rings of the same model of loading arm are identical and interchangeable. The rotary joint is primarily used for the arm's rotational movement; each loading arm employs multiple rotary joints to achieve three-dimensional movement, meeting the requirements of unloading both high and low-profile vehicles. Meanwhile, the key component of the loading arm is the rotary joint. Our company's loading arms are designed with a high-performance rotary joint. This type of rotary joint is manufactured based on imported proprietary technology, featuring a reasonable design, flexible rotation, good sealing performance, and adaptability to harsh environments. This product is processed using advanced foreign technology, requiring CNC lathe machining and high precision. The inner ring is made of stainless steel, and the outer ring is made of 45# stainless steel with nitriding treatment. The structure is compact and flexible. The rotary joint's seal consists of a main seal and two auxiliary seals. The main seal is a PTFE lip seal with a stainless steel spring, containing carbon fiber for lubrication, and is resistant to high and low temperatures. The auxiliary seals are two "C"-shaped sealing rings for dust prevention.
[0028] The spring cylinder enables unrestricted balance within its working range, offering flexible, lightweight operation and simple maintenance; making positioning easy and convenient. All welds on the main pressure pipelines are argon arc welded and undergo rigorous flaw detection and hydrostatic testing, fully complying with HG / T 21608-2012 standards. The entire boom is easy to operate with low resistance, allowing for easy operation by one person.
[0029] The inner arm is made of aluminum alloy and connected to the interface. It can rotate in the horizontal plane and is connected to the outer arm through a bend. If there is a column, the inner arm can rotate ≤270°. It consists of a liquid phase tube inner arm and a gas phase tube inner arm. The outer arm is made of aluminum alloy tube and is connected to the inner arm and the vertical tube. It is the main part of the loading arm and can rotate in both the horizontal and vertical directions. The outer arm can rotate freely within the working range and easily dock with the tank truck.
[0030] One end of the vertical pipe connects to the outer arm, and the other end connects to the tanker opening of the truck, for transporting the medium. The vertical pipe can be designed according to site requirements; depending on the type of tanker truck, a lever-type quick coupling can be used.
[0031] The contents not described in detail in this specification are prior art known to those skilled in the art. 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 the present invention is defined by the appended claims and their equivalents.
Claims
1. A vehicle-mounted storable oil loading crane pipe, comprising a stand (1), characterized in that: One side of the column (1) is fixedly provided with a connecting frame (2), the connecting frame (2) is provided with a vertical pipe (3), and the bottom of the vertical pipe (3) is connected with a connecting pipe (5) through a rotary joint (4). The top of the vertical pipe (3) is connected with one end of an inner arm (8) through a rotary joint (7), the other end of the inner arm (8) is connected with one end of an elbow pipe (10) through a rotary joint (9), the other end of the elbow pipe (10) is connected with one end of an outer arm (11), and the other end of the outer arm (11) is connected with a vertical pipe (13) through a rotary joint (12).
2. The stowable upper loading fueling boom of claim 1, wherein: The bottom of the connecting pipe (5) is provided with a flange (6).
3. The stowable upper loading fueling boom of claim 1, wherein: One side of the outer arm (11) is provided with a U-shaped frame (14), the U-shaped frame (14) is provided with a spring cylinder (15), the output end of the spring cylinder (15) is connected with a connecting piece (16), and the connecting piece (16) is sleeved on the elbow pipe (10).
4. The stowable upper loading fueling boom of claim 1, wherein: The elbow pipe (10) is connected with the outer arm (11) through a rotary joint (5).
5. The stowable upper loading fueling boom of claim 1, wherein: One side of the column (1) is provided with an axle hole (20), the axle hole (20) is provided with a crane supporting shaft (18), and one end of the crane supporting shaft (18) is provided with a mounting plate (17), and the mounting plate (17) is fixed on one side of the vertical pipe (3).
6. The stowable upper loading fueling boom of claim 1, wherein: One side of the column (1) is welded with a connecting frame (19).