A tubing filter device

By designing an oil pipe filter device with observation and rotation components, the problems of difficult observation and cumbersome maintenance of traditional devices are solved, achieving a fast and reliable filtration effect and ensuring the stable operation of the oil pipe system.

CN224462387UActive Publication Date: 2026-07-07CHINA AVIATION FUEL CO LTD EAST CHINA BRANCH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA AVIATION FUEL CO LTD EAST CHINA BRANCH
Filing Date
2025-06-10
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional fuel line filters are easily clogged by impurities, and the clogging cannot be monitored in real time, leading to increased fuel flow resistance and decreased fuel quality, as well as complicated maintenance.

Method used

An oil pipe filter device with an observation component and a rotating component was designed. The corresponding design of the observation cover and the channel facilitates the observation of the filter element blockage. The rotating component ensures that the filter element is accurately aligned with the channel. Combined with the double sealing structure of the sealing ring and the sealing sleeve, oil leakage is prevented.

Benefits of technology

It enables the observation of filter blockage without disassembling the valve body, and allows for quick cleaning or replacement of the filter, ensuring stable operation of the oil pipeline system, preventing oil circuit blockage and leakage, and improving the reliability and efficiency of the filtration device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to oil pipe filter technical field, concretely relates to an oil pipe filter device, including valve body, the inside inlaying installation of valve body has sealing ring, the rotary connection has ball core in valve body, the filter piece is inserted in ball core, is provided with rotating assembly and observation subassembly on valve body, the observation subassembly includes passageway, the passageway is established on valve body, fixed block no.
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Description

Technical Field

[0001] This utility model relates to the field of oil pipe filtration technology, specifically to an oil pipe filtration device. Background Technology

[0002] Traditional aircraft refueling trucks typically use open-type fuel line filters, which expose the fuel to outside air during filtration, making it susceptible to absorbing impurities such as moisture, dust, and microorganisms. For example, in the complex operating environment of airports, open filters are easily clogged by airborne particles, leading to increased fuel flow resistance and reduced refueling efficiency. Furthermore, contact between fuel and air can trigger oxidation, producing gum deposits that further contaminate fuel quality.

[0003] Currently, in existing technologies, filters are generally installed inside the oil pipe valve body. However, with prolonged use, these filters gradually become clogged. When clogged, it is necessary to unscrew the bolts at the connecting flange, separate the connecting flange, and then remove the filter for cleaning. This method is time-consuming, and the clogging status of the filter cannot be observed during its use. Therefore, an oil pipe filtration device is proposed. Utility Model Content

[0004] The main objective of this invention is to provide an oil pipe filtration device that can solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention proposes an oil pipe filtration device, comprising a valve body, wherein a sealing ring is embedded inside the valve body, a ball core is rotatably connected to the valve body, a filter element is inserted into the ball core, and a rotating assembly and an observation assembly are provided on the valve body, wherein the observation assembly includes:

[0006] A channel is provided on the valve body, and a fixing block is fixedly connected to the outer wall of the channel;

[0007] An observation cover is hinged to the outer wall of the channel. A fixing block two is fixedly connected to the outer wall of the observation cover, and a ring is rotatably connected to the fixing block two. By using the observation cover, the filter element can be aligned with the channel when the valve body is not in use, which makes it easy to observe the filter element and understand the clogging status of the filter element.

[0008] A limiting rod is fixed to a circular ring, and a limiting block is fixedly connected to the outer wall of the fixing block.

[0009] Preferably, the second fixing block is located on one side symmetrical to the hinge of the observation cover.

[0010] Preferably, the outer wall of the fixing block is provided with a through groove, and the width of the through groove matches the limiting rod. By rotating the ring, the limiting rod can be driven to rotate, releasing the limiting block from limiting the limiting rod, so that the observation cover can rotate around its hinge point, thereby opening the observation cover and making it convenient to take out the filter.

[0011] Preferably, the rotating assembly includes a handle, a valve stem is fixedly connected to the handle, a limit plate is fixedly connected to the outer wall of the valve stem, a sealing sleeve is fixedly connected to the outer wall of the valve body, the sealing sleeve is sleeved on the outside of the valve stem, and a limit pin is fixedly connected to the outer wall of the sealing sleeve.

[0012] Preferably, there are two sets of limiting pins, and the two sets of limiting pins are symmetrically arranged with the center line of the valve body as the axis of symmetry. By rotating the handle, the valve stem can drive the ball core to rotate, and then under the action of the limiting pins, the filter element can be aligned with the channel.

[0013] Preferably, the valve body is provided with an oil inlet and an oil outlet.

[0014] Preferably, the outer wall of the ball core is provided with an inlay groove, which matches the filter element. When the ball core is connected to the oil inlet and oil outlet, the filter element is limited by the sealing sleeve to ensure the stability of the filter element in use.

[0015] This utility model provides an oil pipe filtration device. It has the following beneficial effects:

[0016] (1) The oil pipe filter device has a corresponding design of observation cover and channel, which allows the filter to be directly observed without disassembling the valve body; after rotating the ring to drive the limit rod to release the limit, the observation cover can be quickly opened to take out the filter for cleaning or replacement, avoiding the cumbersome process of disassembling the valve body as a whole in traditional devices, shortening maintenance time, and ensuring the continuous and stable operation of the oil pipe system.

[0017] (2) The oil pipe filter device uses a rotating component to position the valve stem with a limit pin, ensuring that the filter element is accurately aligned with the channel after the ball core rotates, thus avoiding oil blockage or filtration failure due to positional deviation. At the same time, the double sealing structure of the sealing ring and the sealing sleeve effectively prevents oil leakage. The insertion groove limits the filter element, ensuring stability and sealing during the filtration process and improving the reliability of the filter device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0021] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0022] Figure 4 This utility model Figure 3 Schematic diagram of structure A in the middle;

[0023] Figure 5 This is a schematic diagram of the ring and limiting rod structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the filter element structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the ball valve structure of this utility model.

[0026] Explanation of icon numbers:

[0027] 1. Valve body; 2. Sealing ring; 3. Filter element; 4. Ball core; 5. Rotating assembly; 6. Observation assembly; 101. Oil inlet; 102. Oil outlet; 41. Embedding groove; 51. Handle; 52. Valve stem; 53. Limiting plate; 54. Sealing sleeve; 55. Limiting pin; 61. Channel; 62. Fixing block one; 63. Observation cover; 64. Fixing block two; 65. Ring; 66. Limiting rod; 67. Limiting block.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-7 This utility model proposes an oil pipe filtration device, including a valve body 1, an oil inlet 101 and an oil outlet 102 on the valve body 1, a sealing ring 2 embedded inside the valve body 1, a ball core 4 rotatably connected in the valve body 1, the sealing performance of the ball core 4 can be improved by the use of the sealing ring 2, a filter element 3 is inserted into the ball core 4, and an inlay groove 41 is opened on the outer wall of the ball core 4, the inlay groove 41 matches the filter element 3, and a rotating component 5 and an observation component 6 are provided on the valve body 1.

[0031] In this embodiment of the present invention, the observation assembly 6 includes a channel 61, an observation cover 63, and a limiting rod 66. The channel 61 is disposed on the valve body 1. A fixing block 62 is fixedly connected to the outer wall of the channel 61. The observation cover 63 is hinged to the outer wall of the channel 61. A fixing block 64 is fixedly connected to the outer wall of the observation cover 63. A ring 65 is rotatably connected to the fixing block 64. The limiting rod 66 is fixed to the ring 65. A limiting block 67 is fixedly connected to the outer wall of the fixing block 62. The fixing block 64 is disposed on one side symmetrical to the hinge of the observation cover 63. A through groove is formed on the outer wall of the fixing block 62, and the width of the through groove is... The belt matches the limiting rod 66. By using the observation cover 63, the filter element 3 can be aligned with the channel 61 when the valve body 1 is not in use, making it easy to observe the filter element 3 and understand its blockage status. When the filter element 3 is blocked and needs to be cleaned, rotating the ring 65 can drive the limiting rod 66 to rotate, releasing the limiting block 67 from limiting the limiting rod 66. This allows the observation cover 63 to rotate around its hinge point, thereby opening the observation cover 63 and making it easy to remove the filter element 3. This avoids the cumbersome process of disassembling the entire valve body 1 required by traditional devices, shortens maintenance time, and ensures the continuous and stable operation of the oil pipeline system.

[0032] Furthermore, the rotating assembly 5 includes a handle 51, to which a valve stem 52 is fixedly connected. A limit piece 53 is fixedly connected to the outer wall of the valve stem 52. A sealing sleeve 54 is fixedly connected to the outer wall of the valve body 1, and the sealing sleeve 54 is fitted over the valve stem 52. A limit pin 55 is fixedly connected to the outer wall of the sealing sleeve 54. Two sets of limit pins 55 are provided, and the two sets of limit pins 55 are symmetrically arranged about the center line of the valve body 1. By rotating the handle 51, the valve stem 52 can drive the ball core 4 to rotate, thereby... Under the action of the limiting pin 55, the filter element 3 can be aligned with the channel 61. At the same time, when the ball core 4 is connected to the oil inlet 101 and the oil outlet 102, the filter element 3 is limited by the sealing sleeve 54 to ensure the stability of the filter element 3 and avoid the oil circuit blockage or filtration failure due to position deviation. Meanwhile, the double sealing structure of the sealing ring 2 and the sealing sleeve 54 effectively prevents oil leakage. Together with the limiting of the filter element 3 by the embedding groove 41, it ensures the stability and sealing of the filtration process and improves the reliability of the filtration device.

[0033] In use, turn the handle 51 to make the valve stem 52 drive the ball core 4 to rotate. Then, under the action of the limit pin 55, the filter element 3 can be aligned with the channel 61, making it convenient for the staff to observe the blockage of the filter element 3. When it is necessary to remove the filter element 3, turn the ring 65 to drive the limit rod 66 to rotate, release the limit block 67 from the limit rod 66, and then the observation cover 63 can be rotated around its hinge point to open the observation cover 63 and then the filter element 3 can be removed. During the use of the ball core 4, when the ball core 4 is connected to the oil inlet 101 and the oil outlet 102, the filter element 3 is limited by the sealing sleeve 54 to ensure the stability of the filter element 3 in use.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An oil pipe filtration device, comprising a valve body (1), characterized in that: A sealing ring (2) is embedded inside the valve body (1). A ball core (4) is rotatably connected to the valve body (1). A filter element (3) is inserted into the ball core (4). A rotating assembly (5) and an observation assembly (6) are provided on the valve body (1). The observation assembly (6) includes: Channel (61), the channel (61) is disposed on valve body (1), and a fixing block (62) is fixedly connected to the outer wall of the channel (61); An observation cover (63) is hinged to the outer wall of the channel (61). A fixing block two (64) is fixedly connected to the outer wall of the observation cover (63), and a ring (65) is rotatably connected to the fixing block two (64). A limiting rod (66) is fixed to a ring (65), and a limiting block (67) is fixedly connected to the outer wall of the fixing block (62).

2. The oil pipe filtration device according to claim 1, characterized in that: The second fixing block (64) is located on one side symmetrical to the hinge of the observation cover (63).

3. The oil pipe filtration device according to claim 1, characterized in that: The outer wall of the fixing block (62) is provided with a through groove, and the width of the through groove matches the limiting rod (66).

4. The oil pipe filtration device according to claim 1, characterized in that: The rotating assembly (5) includes a handle (51), a valve stem (52) is fixedly connected to the handle (51), a limiting piece (53) is fixedly connected to the outer wall of the valve stem (52), a sealing sleeve (54) is fixedly connected to the outer wall of the valve body (1), the sealing sleeve (54) is sleeved on the outside of the valve stem (52), and a limiting pin (55) is fixedly connected to the outer wall of the sealing sleeve (54).

5. The oil pipe filtration device according to claim 4, characterized in that: The limiting pins (55) are provided in two sets, and the two sets of limiting pins (55) are symmetrically arranged with the center line of the valve body (1) as the axis of symmetry.

6. The oil pipe filtration device according to claim 1, characterized in that: The valve body (1) is provided with an oil inlet (101) and an oil outlet (102).

7. The oil pipe filtration device according to claim 1, characterized in that: The outer wall of the ball core (4) is provided with an inlay groove (41), which matches the filter element (3).