Oil filling connector

Abstract

The utility model relates to the technical field of refueling connectors, in particular to a refueling connector which comprises a connector body, an inlet section is arranged at the upper end of the connector body, an outlet section is arranged at the lower end of the connector body, and a filtering structure is arranged on the inner side of the inlet section and comprises an installation ring located at the port position of the inlet section. The lower end of the mounting ring is fixedly connected with a fixed mesh enclosure, the fixed mesh enclosure is of a hollow circular truncated cone structure, the lower port of the fixed mesh enclosure is fixedly provided with a connecting ring, the lower surface of the connecting ring is provided with a butt-joint ring, the inner side of the butt-joint ring is fixedly provided with a soft mesh enclosure, and the upper surface of the butt-joint ring is fixedly provided with two positioning pins. According to the butt joint, the filter structure is arranged, and the detachable filter structure is arranged on the premise that the shape of an existing filter structure is not changed, so that the treatment efficiency of filtering oil residues at dead angle positions is improved, and the use performance of the butt joint body is improved to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of refueling connector technology, and in particular to a refueling connector. Background Technology

[0002] The pressure refueling connector is used by ground refueling equipment to pressurize and refuel aircraft fuel systems. It can be connected to international standard connectors and can be used to perform pressure refueling operations on aircraft and vehicles through the pressure refueling system.

[0003] A Chinese patent with publication number CN 222137027 U discloses an aircraft pressure refueling connector, comprising: a connector body, a pressure regulating valve, a hose connector, a docking copper plate, a valve assembly, and a docking handle. The connector body and the pressure regulating valve are connected by fasteners and are interconnected. The hose connector is disposed on the pressure regulating valve, the docking copper plate is disposed on the connector body, and the valve assembly is disposed within the connector body and is used to control the opening and closing of the connector body. The docking handle is installed on the surface of the connector body. A bidirectional impurity collection device is provided inside the hose connector. With this design, by providing a bidirectional impurity collection device on the filter assembly, impurities filtered out in the fuel line during refueling can be collected, and impurities in the fuel tank can also be collected during aircraft fuel extraction, facilitating unified cleaning and preventing secondary pollution to other aircraft.

[0004] Existing technologies often have the following drawbacks: when using the above-mentioned refueling connectors, the filter screen is often a one-piece structure, and the dead corners on the inside of the filter screen are prone to getting stuck with filtered oil residue, making it difficult to clean and reducing the performance of the oil residue.

[0005] Therefore, this utility model provides a refueling connector. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the difficulty in cleaning oil residue from the dead corners inside the filter screen of the aforementioned structure, and to propose an oil refueling connector.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a refueling connector, comprising a connector body, an inlet section at the upper end of the connector body, an outlet section at the lower end of the connector body, a filter structure on the inner side of the inlet section, the filter structure including an mounting ring located at the port of the inlet section, a fixed mesh cover fixedly connected to the lower end of the mounting ring, the fixed mesh cover being a hollow frustum structure, a connecting ring fixedly installed at the lower port of the fixed mesh cover, a mating ring provided on the lower surface of the connecting ring, and a soft mesh cover fixedly installed on the inner side of the mating ring.

[0008] The effect achieved by the above components is as follows: by setting up a filter structure, without changing the shape of the existing filter structure, a detachable filter structure is set up, which improves the processing efficiency of oil residue in dead corners and improves the performance of the connector body to a certain extent.

[0009] Preferably, two positioning pins are fixedly installed on the upper surface of the docking ring, and two positioning holes are formed on the lower surface of the connecting ring, the size of the positioning holes being adapted to the size of the positioning pins.

[0010] The effect achieved by the above components is that when the filter structure needs to be cleaned, since the upper surface of the docking ring is fixedly installed with a positioning pin and the lower surface of the connecting ring is provided with a positioning hole that matches its size, it is only necessary to separate the docking ring and the connecting ring.

[0011] Preferably, a support bar is fixedly installed on the inner side of the mounting ring, and a hook frame is slidably connected inside the support bar. The hook frame consists of a U-shaped frame and two hook bars. A T-shaped rod is fixedly installed at the upper end of the soft mesh cover, and the T-shaped rod is sleeved on the inner side of the two hook bars on the hook frame.

[0012] The effect achieved by the above components is to pull up the soft mesh cover, thereby adjusting the soft mesh cover to be pulled into a cone-shaped structure.

[0013] Preferably, the support bar is internally threaded with a drive rod, and the drive rod is rotatably connected to the U-shaped frame on the hook frame.

[0014] The effect achieved by the above components is that rotating the drive rod will cause the hook frame to slide along the support bar, thereby adjusting the soft mesh cover to be pulled into a cone-shaped structure.

[0015] Preferably, the side wall of the outlet section is provided with a sealing device, the sealing device including a fixed plate fixedly connected to the side wall of the outlet section, a limit strip slidably connected inside the fixed plate, a circular block fixedly connected to the lower end of the limit strip, and a cover plate rotatably connected to the outer side of the circular block.

[0016] The effect achieved by the above-mentioned components is that by setting up a sealing device, it is convenient to flexibly cover and protect the outlet section.

[0017] Preferably, the fixing plate is internally threaded with a screw, and the screw is internally rotatably connected to the circular block.

[0018] The effect achieved by the above components is that rotating the screw causes the circular block to slide up and down along the fixed plate, thereby controlling the opening and closing of the cover plate.

[0019] Preferably, a sealing ring is bonded to the upper surface of the cover plate.

[0020] The effect achieved by the above components is that the sealing ring can enhance the sealing effect and prevent fuel leakage.

[0021] In summary:

[0022] 1. In this utility model, the connecting ring and the connecting ring are separated, and the soft mesh cover can be removed for cleaning. This solves the problem that oil residue in the dead corner of the filter screen is not easy to clean in the prior art. By setting a filter structure, a detachable filter structure is set without changing the shape of the existing filter structure, which improves the processing efficiency of oil residue in the dead corner and improves the performance of the connector body to a certain extent.

[0023] 2. In this utility model, a sealing ring is glued to the upper surface of the cover plate. When the cover plate is closed, the sealing ring can enhance the sealing effect and prevent fuel leakage. After the cover plate is opened, the cover plate on the circular block can be rotated to realize the twisting and opening of the cover plate at the outlet section. By setting the sealing device, the flexible covering and protection of the outlet section is facilitated. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the fixed mesh cover in this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the fixed mesh cover in this utility model;

[0027] Figure 4 In this utility model Figure 3 Another structural diagram from a different angle;

[0028] Figure 5 This is a schematic diagram of the structure of the soft mesh cover in this utility model;

[0029] Figure 6 This is a schematic diagram of the sealing device in this utility model.

[0030] Legend: 1. Connector body; 2. Inlet section; 3. Outlet section; 4. Filter structure; 401. Mounting ring; 402. Fixing mesh cover; 403. Connecting ring; 404. Butt ring; 405. Soft mesh cover; 406. Support bar; 407. Hook frame; 408. Drive rod; 409. T-shaped rod; 410. Positioning pin; 411. Positioning hole; 5. Sealing device; 51. Fixing plate; 52. Screw; 53. Limiting strip; 54. Circular block; 55. Cover plate; 56. Sealing ring. Detailed Implementation

[0031] Reference Figure 1As shown, this utility model provides a technical solution: a refueling connector, including an inlet section 2 at the upper end of the connector body 1, an outlet section 3 at the lower end of the connector body 1, a filter structure 4 on the inner side of the inlet section 2, and a sealing device 5 on the side wall of the outlet section 3.

[0032] The following section will explain the specific setup and function of its filter structure 4 and sealing device 5.

[0033] Reference Figure 1-5 As shown in this embodiment: the filter structure 4 includes an installation ring 401 located at the port of the inlet section 2. A fixed mesh cover 402 is fixedly connected to the lower end of the installation ring 401. The fixed mesh cover 402 is a hollow frustum structure. A connecting ring 403 is fixedly installed at the lower port of the fixed mesh cover 402. A docking ring 404 is provided on the lower surface of the connecting ring 403. A soft mesh cover 405 is fixedly installed on the inner side of the docking ring 404. By setting the filter structure 4, a detachable filter structure 4 is provided without changing the shape of the existing filter structure 4, which improves the processing efficiency of oil residue in dead corners and improves the performance of the connector body 1 to a certain extent. Two positioning pins 410 are fixedly installed on the upper surface of the docking ring 404, and two positioning holes 411 are opened on the lower surface of the connecting ring 403. The size of the positioning holes 411 is adapted to the size of the positioning pins 410. When cleaning the filter structure 4 is required, since the upper surface of the docking ring 404 is fixedly installed with a positioning pin 410, and the lower surface of the connecting ring 403 has a positioning hole 411 that matches its size, it is only necessary to separate the docking ring 404 and the connecting ring 403. A support bar 406 is fixedly installed on the inner side of the mounting ring 401. A hook frame 407 is slidably connected inside the support bar 406. The hook frame 407 consists of a U-shaped frame and two hook bars. A T-shaped rod 409 is fixedly installed on the upper end of the soft mesh cover 405. The T-shaped rod 409 is sleeved on the inner side of the two hook bars on the hook frame 407. Pulling up the soft mesh cover 405 allows it to be adjusted into a conical structure. A drive rod 408 is threadedly connected inside the support bar 406. The drive rod 408 is rotatably connected to the inside of the U-shaped frame on the hook frame 407. Rotating the drive rod 408 will cause the hook frame 407 to slide along the support bar 406, thereby adjusting the soft mesh cover 405 to be pulled into a cone-shaped structure.

[0034] Reference Figure 1 and Figure 6As shown, specifically, the sealing device 5 includes a fixed plate 51 fixedly connected to the side wall of the outlet section 3. A limiting strip 53 is slidably connected inside the fixed plate 51, and a circular block 54 is fixedly connected to the lower end of the limiting strip 53. A cover plate 55 is rotatably connected to the outer side of the circular block 54. By setting up the sealing device 5, flexible covering and protection of the outlet section 3 is facilitated. A screw 52 is threadedly connected inside the fixed plate 51, and the screw 52 is rotatably connected to the circular block 54. Rotating the screw 52 causes the circular block 54 to slide up and down along the fixed plate 51, thereby controlling the opening and closing of the cover plate 55. A sealing ring 56 is glued to the upper surface of the cover plate 55. The sealing ring 56 enhances the sealing effect and prevents fuel leakage.

[0035] Working principle: By setting up the filter structure 4, when using this refueling connector, fuel enters from the inlet section 2 of the connector body 1. The filter structure 4 inside the inlet section 2 begins to function. The fuel first undergoes preliminary filtration through the fixed mesh cover 402. The fixed mesh cover 402 has a hollow frustum structure, which increases the filtration area and improves filtration efficiency. The T-shaped rod 409 fixedly installed at the upper end of the soft mesh cover 405 is fitted inside the two hook bars of the hook frame 407. The drive rod 408, which is internally threaded to the support bar 406, is rotatably connected to the U-shaped frame inside the hook frame 407. Rotating the drive rod 408 will cause the hook frame 407 to slide along the support bar 406, thereby adjusting the soft mesh cover 405 to be pulled into a conical structure. At this time, the structure formed by the fixed mesh cover 402 and the soft mesh cover 405 is the oil sludge in the prior art. In filter structure 4, oil residue accumulates between the soft mesh cover 405 and the fixed mesh cover 402. When cleaning filter structure 4 is required, first rotate the drive rod 408 to loosen the soft mesh cover 405, then remove the T-shaped rod 409 inside the hook frame 407. Since the upper surface of the docking ring 404 is fixedly installed with a positioning pin 410, and the lower surface of the connecting ring 403 is provided with a positioning hole 411 that matches its size, the soft mesh cover 405 can be removed for cleaning simply by separating the docking ring 404 and the connecting ring 403. This solves the problem of oil residue being difficult to clean in the dead corner of the filter screen in the prior art. By setting filter structure 4, without changing the shape of the existing filter structure 4, a detachable filter structure 4 is set, which facilitates the processing efficiency of oil residue in the dead corner and improves the performance of the connector body 1 to a certain extent.

[0036] By setting the sealing device 5, the fuel flows out from the outlet section 3 after being filtered. When the refueling connector is not in use, the sealing device 5 on the side wall of the outlet section 3 can play a sealing role. Rotating the screw 52 will drive the circular block 54 to slide up and down along the fixed plate 51, thereby controlling the opening and closing of the cover plate 55. The upper surface of the cover plate 55 is glued with a sealing ring 56. When the cover plate 55 is closed, the sealing ring 56 can enhance the sealing effect and prevent fuel leakage. After opening the cover plate 55, the cover plate 55 on the circular block 54 can be rotated to realize the twisting opening of the cover plate 55 at the outlet section 3. By setting the sealing device 5, the flexible covering and protection of the outlet section 3 is facilitated.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A refueling connector, comprising a connector body (1), characterized in that: The upper end of the connector body (1) is provided with an inlet section (2), and the lower end of the connector body (1) is provided with an outlet section (3). The inner side of the inlet section (2) is provided with a filter structure (4). The filter structure (4) includes an installation ring (401) located at the port of the inlet section (2). The lower end of the installation ring (401) is fixedly connected with a fixed mesh cover (402). The fixed mesh cover (402) is a hollow frustum structure. The lower port of the fixed mesh cover (402) is fixedly installed with a connecting ring (403). The lower surface of the connecting ring (403) is provided with a docking ring (404). The inner side of the docking ring (404) is fixedly installed with a soft mesh cover (405).

2. The oil filling connector according to claim 1, characterized in that: Two positioning pins (410) are fixedly installed on the upper surface of the docking ring (404), and two positioning holes (411) are opened on the lower surface of the connecting ring (403). The size of the positioning holes (411) is adapted to the size of the positioning pins (410).

3. The oil filling connector according to claim 1, characterized in that: A support bar (406) is fixedly installed on the inner side of the mounting ring (401). A hook frame (407) is slidably connected inside the support bar (406). The hook frame (407) consists of a U-shaped frame and two hook bars. A T-shaped rod (409) is fixedly installed on the upper end of the soft mesh cover (405). The T-shaped rod (409) is sleeved on the inner side of the two hook bars on the hook frame (407).

4. The oil filling connector according to claim 3, characterized in that: The support bar (406) is internally threaded with a drive rod (408), and the drive rod (408) is internally rotatably connected to the U-shaped frame on the hook frame (407).

5. The oil filling connector according to claim 1, characterized in that: The side wall of the outlet section (3) is provided with a sealing device (5). The sealing device (5) includes a fixing plate (51) fixedly connected to the side wall of the outlet section (3). A limit strip (53) is slidably connected inside the fixing plate (51). A circular block (54) is fixedly connected to the lower end of the limit strip (53). A cover plate (55) is rotatably connected to the outer side of the circular block (54).

6. The oil filling connector according to claim 5, characterized in that: The fixing plate (51) is internally threaded with a screw (52), and the screw (52) is internally rotatably connected to the circular block (54).

7. The oil filling connector according to claim 5, characterized in that: A sealing ring (56) is glued to the upper surface of the cover plate (55).

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