Pressure fueling connector dismounting bracket

The modular design of the pressure refueling connector assembly and disassembly bracket solves the problems of high reliance on manual labor, numerous safety hazards, and low efficiency in traditional operations. It achieves stable fixing of the refueling connector, oil collection, and multi-specification compatibility, thereby improving the safety and efficiency of aviation assembly and disassembly operations.

CN224529000UActive Publication Date: 2026-07-21CHINA AVIATION FUEL CO LTD GANSU BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA AVIATION FUEL CO LTD GANSU BRANCH
Filing Date
2025-09-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing technology, the disassembly and assembly of aircraft pressure refueling connectors require two workers to operate together, which has problems such as complicated operation, safety hazards, difficulty in controlling oil leakage and low work efficiency.

Method used

A modular pressure refueling connector mounting bracket was designed, which uses casters, guide plates and triangular retainers to achieve stable fixing of the refueling connector, oil collection and flexible movement, and has a self-locking function and multi-specification adaptability.

Benefits of technology

It improves operational safety and efficiency, reduces oil leakage, is compatible with different specifications of refueling connectors, adapts to various operating scenarios, and reduces labor intensity and cleaning costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pressure oil filling connector dismounting bracket relates to aviation ground support equipment technical field, specifically is a kind of pressure oil filling connector dismounting bracket, including support base plate, its lower end is equipped with elastic self-locking buckle's universal wheel, it is convenient to move and fixed;Upper end is connected bracket through support column, and bracket is equipped with triangular fixer, and its upper portion is installed with the clamping groove, bolt and nut's clamp, can ±15 adjust clamping angle to adapt to multi-specification connector;Bracket is equipped with flow guide groove and with oil collecting barrel coaxial, 15 inclination angle's flow guide plate, flow guide groove is connected triangular fixer bottom and flow guide plate, and oil liquid is guided to oil collecting barrel;Triangular fixer side edge is equipped with reinforcing rib plate, and support column is welded or bolted with bracket. Through modular structure design and function integration, realize the stable fixation in the process of oil filling connector dismounting, oil collection and flexible movement.
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Description

Technical Field

[0001] This utility model relates to the field of aviation ground support equipment technology, specifically a pressure refueling connector disassembly and assembly bracket. Background Technology

[0002] In the aviation industry, the installation and removal of aircraft pressure refueling connectors is a crucial part of aircraft maintenance. Traditionally, this requires two workers: one to hold the hose clamps while the other holds the refueling connector for disassembly. Due to the lack of specialized tools, the hose often wobbles during disassembly, leading to oil leakage, environmental pollution, and potential personnel injury. Furthermore, after disassembly, the hose needs to be supported by a dedicated person or secured with a temporary stand, making the process cumbersome and unsafe. In addition, existing methods place high demands on the physical fitness of operators, and operational efficiency is limited by the level of teamwork, failing to meet the high efficiency and safety requirements of modern aviation.

[0003] Therefore, a specialized bracket integrating stable support, oil collection, and flexible adjustment is needed to improve operational safety and efficiency. However, existing patented technologies have the following drawbacks:

[0004] (1) High dependence on manual operation: The traditional disassembly and assembly process requires at least two people to work together, one person to fix the hose clamp and the other person to operate the oiling connector. They also need to use their leg strength to clamp the hose to complete the disassembly. The operation is complicated and the labor intensity is high.

[0005] (2) Significant safety hazards: When the joint is disassembled, the residual oil in the pipe is easily sprayed due to pressure, which will cause the workers' clothes to be contaminated and the environment to be polluted, posing a safety risk.

[0006] (3) Difficulty in controlling oil leakage: After disassembly, a special person is needed to support the hose or a temporary support is added, but it is still difficult to completely avoid secondary oil leakage, and the cleaning is difficult.

[0007] (4) Low work efficiency: The existing tools lack dedicated fixing and diversion devices, resulting in long operation time and difficulty in meeting the needs of efficient operation and maintenance. Utility Model Content

[0008] The purpose of this utility model is to provide a pressure refueling connector disassembly and assembly bracket, which achieves stable fixation, oil collection and flexible movement during the disassembly and assembly process of the refueling connector through modular structural design and functional integration.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a pressure refueling connector disassembly bracket, comprising a support base plate, a universal wheel at the lower end of the support base plate, a buckle at the end face of the universal wheel for fixing the universal wheel, a support column at the upper end of the support base plate, a bracket at the upper end of the support column, a guide plate at the bracket, and an oil collection tank at the upper end of the support base plate, wherein the guide plate and the oil collection tank are coaxially arranged.

[0010] Furthermore, the upper end of the bracket is provided with a triangular retainer, the upper end of the triangular retainer is provided with a clamp, the outer end of the clamp is provided with a groove, the inner end of the clamp is provided with a bolt, the end face of the bolt is provided with a nut, and the end face of the bracket is provided with a guide groove.

[0011] Furthermore, the buckle of the caster adopts an elastic limiting structure. When the bracket is stationary, the wheel can be self-locked by rotating the buckle. When moving, the wheel can be unlocked by rotating in the opposite direction. The guide plate is inclined at a 40° angle to the horizontal plane, and its end extends to the edge of the oil collection tank opening.

[0012] Furthermore, the triangular retainer forms an axial limiting structure with bolts and clamps, allowing the clamping angle to be adjusted within a range of ±15°. The slot, bolts, and nuts are used to fix the refueling connector and restrict its movement.

[0013] Furthermore, the upper end of the support column is fixedly connected to the lower end face of the bracket by welding or bolts.

[0014] Furthermore, one end of the guide groove extends to the bottom of the triangular retainer, and the other end is connected to the starting end of the guide plate.

[0015] Furthermore, the three sides of the triangular retainer are provided with reinforcing ribs, which are fixedly connected to the upper end face of the bracket.

[0016] This utility model provides a pressure oil filling connector disassembly bracket, which has the following beneficial effects:

[0017] 1. Flexible and convenient to move or fix, improving operational efficiency.

[0018] The casters on the support base facilitate flexible movement of the entire bracket, adapting to different work scenarios. The elastic limit buckles designed on the end face of the casters can lock the wheels by rotating them when the bracket is stationary, effectively preventing the bracket from accidentally sliding during operation and ensuring operational safety and stability. When moving, simply rotate the buckles in the opposite direction to unlock them, making operation simple and efficient.

[0019] Oil collection and leak-proof design optimizes the working environment.

[0020] The guide plate on the bracket features a 40° incline, extending to the edge of the oil collection tank opening and coaxially aligned with it. Simultaneously, one end of the guide groove on the bracket's end face connects to the bottom of the triangular retainer, while the other end connects to the starting end of the guide plate, forming a continuous oil guiding path. This structure effectively concentrates and guides any oil dripping during assembly and disassembly into the oil collection tank, preventing indiscriminate oil leakage and contamination of the work environment, and reducing cleaning costs.

[0021] 3. The connector is reliably fixed and highly versatile, adaptable to various specifications.

[0022] The triangular retainer forms an axial limiting structure with bolts and clamps, allowing the clamp angle to be adjusted within a range of ±15°. With the groove at the outer end of the clamp and the bolts and nuts at the inner end, it can flexibly adapt to pressure oiling connectors of different sizes and shapes, ensuring the firmness of the connector fixation and significantly improving the bracket's compatibility with connectors of different specifications, thus expanding the applicable scenarios.

[0023] 4. High structural strength, balancing durability and maintainability.

[0024] The three sides of the triangular fastener are equipped with reinforcing ribs, which are fixedly connected to the upper end face of the bracket, effectively enhancing the triangular fastener's resistance to deformation and extending its service life. The support column and the bracket are fixedly connected by welding or bolts, which not only ensures the rigidity of the overall structure or its detachable maintainability, but also improves the assembly flexibility and convenience of later maintenance of the bracket. Attached Figure Description

[0025] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0028] Figure 3 This is an enlarged schematic diagram of the clamp of this utility model;

[0029] Figure 4 This is a plan view of the overall structure of this utility model. Detailed Implementation

[0030] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] Example 1: Disassembly and assembly of pressure refueling connectors in aircraft fuel systems

[0033] The fuel system of a certain type of transport aircraft requires periodic disassembly and reassembly of the pressure refueling connector. The specific implementation process using this bracket is as follows:

[0034] Movement and Fixation: The four casters 11 at the lower end of the support base plate 1 push the bracket to the bottom of the oiling connector. Rotate the elastic limit buckle 111 on the end face of each caster, and the buckle will engage with the locking groove of the wheel body, thus fixing the bracket stably.

[0035] Joint fixing: The triangular fixing device 21 at the upper end of the bracket 2 forms an axial limit with the clamp 22 through the bolt 222. Adjust the clamp to be slightly larger than the outer diameter of the joint, put the joint into the clamp groove 221, and tighten the nut 223. At the same time, the reinforcing ribs on the three sides of the triangular fixing device are welded to the upper end face of the bracket 2 to ensure that there is no deformation during fixing.

[0036] Oil collection: During the disassembly and assembly process, the aviation fuel dripping from the joint flows along the guide groove 23 on the end face of the bracket 2 to the bottom of the triangular fixing device 21, and then is guided by the guide plate 24 to the edge of the oil collection tank 3, and finally flows into the oil collection tank to avoid polluting the apron.

[0037] Convenience of maintenance: After the operation is completed, rotate the universal wheel buckle 111 in the opposite direction to release the lock and push the bracket to the maintenance area. If the guide plate 24 needs to be replaced, it can be disassembled by bolt connection between the support column 12 and the lower end face of the bracket 2 for quick maintenance.

[0038] Example 2: Inspection and maintenance scenario of pressure fuel dispenser connectors at ground gas stations

[0039] A certain type of pressurized fuel dispenser at a gas station requires routine maintenance. The specific implementation of this bracket is as follows:

[0040] Structural adaptation: The upper end of the support column 12 is welded to the lower end of the bracket 2 to enhance the overall rigidity; the triangular fastener 21 is cut from Q345 steel plate, the inner side of the clamp 22 is fitted with a rubber anti-slip pad, and the groove 221 is a V-shaped groove to adapt to joints with different cross-sectional shapes;

[0041] Angle adjustment: When it is necessary to fix a non-standard angle joint, loosen the nut 223 of the clamp 22, rotate the clamp around the bolt 222 to a range of ±15°, so that the groove fits against the surface of the joint, and then tighten the nut to complete the fixation, ensuring that the joint does not slip during maintenance;

[0042] Oil protection: The guide plate 24 is made of stainless steel and has a 15° tilt design to stabilize the oil flow rate. The end is precisely aligned with the center of the opening of the oil collection tank 3. The guide groove 23 is welded to the bottom of the triangular retainer to prevent oil from leaking into the bracket gap.

[0043] Mobility: The casters 11 are made of polyurethane coated wheels, and the elastic limit buckles 111 are made of spring steel. When moving, the buckles can be rotated to unlock, making pushing smooth and locking reliable when stationary.

[0044] Example 3: Temporary disassembly and assembly of pressure refueling equipment for emergency field rescue

[0045] At an emergency rescue site, a pressure refueling connector needs to be quickly disassembled and reassembled. The specific implementation of this bracket is as follows:

[0046] Multi-specification compatibility: The groove 221 at the outer end of the clamp 22 is designed to be adjustable, the bolt 222 uses M14 high-strength bolts, and the nut 223 has an anti-loosening washer to ensure the reliability of fixing the flange joint.

[0047] Structural reinforcement: The three sides of the triangular retainer 21 are welded with reinforcing ribs, which are fixed to the upper end of the bracket 2 with countersunk screws, which not only avoids welding deformation but also improves impact resistance.

[0048] Adaptability to complex terrain: The support base plate 1 is made of patterned steel plate, and the casters 11 are equipped with brakes. When moving on muddy or gravelly ground, the brake locking buckle 111 and the patterned steel plate prevent slippage, ensuring the stability of the bracket.

[0049] Oil collection reliability: The guide plate 24 is coaxially set with the oil collection tank 3, and the guide channel 23 guides the oil to the starting end of the guide plate 24. Even if the joint is tilted at 45°, the oil can still flow completely into the oil collection tank 3, avoiding oil dripping onto the ground and causing safety hazards.

[0050] 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 which is defined by the appended claims and their equivalents.

Claims

1. A pressure refueling connector disassembly bracket, comprising a supporting base plate (1), characterized in that: The lower end of the support base plate (1) is provided with a caster wheel (11), and the end face of the caster wheel (11) is provided with a buckle (111). The buckle (111) is used to fix the caster wheel (11). The upper end of the support base plate (1) is provided with a support column (12), and the upper end of the support column (12) is provided with a bracket (2). The bracket (2) is provided with a guide plate (24). The upper end of the support base plate (1) is provided with an oil collection tank (3). The guide plate (24) and the oil collection tank (3) are coaxially arranged.

2. The pressure oil filling connector disassembly bracket according to claim 1, characterized in that: The bracket (2) has a triangular retainer (21) at its upper end, a clamp (22) at its upper end, a groove (221) at the outer end of the clamp (22), a bolt (222) at the inner end of the clamp (22), a nut (223) at the end face of the bolt (222), and a guide groove (23) at the end face of the bracket (2).

3. The pressure oil filling connector disassembly bracket according to claim 1, characterized in that: The buckle (111) of the universal wheel (11) adopts an elastic limiting structure. When the bracket is stationary, the wheel can be self-locked by rotating the buckle. When moving, the wheel can be unlocked by rotating in the opposite direction. The guide plate (24) is inclined at a 40° angle to the horizontal plane, and its end extends to the edge of the opening of the oil collection tank (3).

4. The pressure oil filling connector disassembly bracket according to claim 2, characterized in that: The triangular retainer (21) forms an axial limiting structure with the clamp (22) through the bolt (222), so that the clamp (22) can adjust the clamping angle within the range of ±15°. The slot (221), bolt (222) and nut (223) are used to fix the oiling connector and restrict the movement of the oiling connector.

5. A pressure refill connector mounting bracket according to claim 1, characterized in that: The upper end of the support column (12) is fixedly connected to the lower end face of the bracket (2) by welding or bolts.

6. A pressure oil filling connector disassembly bracket according to claim 2, characterized in that: One end of the guide groove (23) extends to the bottom of the triangular retainer (21), and the other end is connected to the starting end of the guide plate (24).

7. A pressure refill connector mounting bracket according to claim 2, characterized in that: The three sides of the triangular fastener (21) are provided with reinforcing ribs, which are fixedly connected to the upper end face of the bracket.