An oil drain adapter for an aircraft engine
Patent Information
- Application Number
- CN202522323475.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-11-03
AI Technical Summary
[0002]飞机发动机在定期维护、检修或换油时,需要进行放油操作,在此过程中,为了收集放出的油液,防止其污染机坪环境并便于回收处理,通常需要使用专用的接油设备,传统的接油器多采用简单的漏斗结构,其在应对结构复杂、空间受限的飞机发动机舱时,往往存在安装不便、适应性差、易泄漏和清洁困难等问题
本实用新型通过设置的活动挂钩、固定挂钩和钢丝绳组合,使漏斗可根据发动机放油口的位置灵活调整悬挂角度和位置,从而实现适应不同机型或不同部位的放油需求,提高安装的灵活性和适用范围。
Smart Images

Figure CN224754187U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of engine auxiliary equipment, and in particular relates to an oil receiving device for draining oil from an aircraft engine. Background Technology
[0002] When aircraft engines undergo regular maintenance, repair, or oil changes, oil draining is required. In order to collect the drained oil, prevent it from polluting the apron environment, and facilitate recycling, specialized oil receiving equipment is usually needed. Traditional oil receiving devices often use a simple funnel structure, which often has problems such as inconvenient installation, poor adaptability, easy leakage, and difficult cleaning when dealing with the complex structure and limited space of aircraft engine compartments.
[0003] However, such devices typically have the following drawbacks: First, their suspension structures are mostly rigid or at a fixed angle, making it difficult to fine-tune the precise position of the oil drain port for different engine models. This can lead to inaccurate alignment or insecure installation, posing a risk of oil splashing. Second, the inner wall of the funnel easily retains viscous oil or accumulates grease after draining, causing waste and pollution. Long-term use can also easily lead to blockage of the funnel outlet, making cleaning and maintenance extremely inconvenient. Therefore, we provide an oil drain catcher for aircraft engines to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this utility model is to provide an oil catcher for draining oil from an aircraft engine. Through the combination of a movable hook, a fixed hook, and a wire rope, the suspension angle and position can be flexibly adjusted according to the location of the engine drain port. At the same time, the use of a linkage ring and a scraper effectively prevents oil residue and funnel blockage.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is an oil receiving device for draining oil from an aircraft engine, including a funnel. Two sets of fixed hooks are welded to the upper part of the outer wall of the funnel and are evenly distributed in a ring along the periphery of the funnel. A movable hook is provided directly above each set of fixed hooks. The movable hooks are connected to the fixed hooks directly below them by a steel wire rope. A linkage ring is provided on the upper part of the inner wall of the funnel. Four sets of scraper strips are fixed to the lower end face of the linkage ring and are evenly distributed in a ring along the periphery.
[0006] The present invention is further configured such that the lower end of the funnel is provided with an end head, and a quick connector is sleeved on the lower end face of the end head.
[0007] The present invention is further configured such that an L-shaped strip is fixed on the upper end face of the linkage ring located between the two sets of fixed hooks, and each L-shaped strip is hung on the upper end of the funnel.
[0008] The present invention is further configured such that the surface wall of the funnel located between the two sets of fixed hooks is provided with a sliding groove, and each sliding groove is provided with a slider that connects with the L-shaped strip.
[0009] The present invention is further configured such that a through hole is provided through the side wall of the L-shaped bar corresponding to the slider, and a locking bolt is provided on the surface wall of the L-shaped bar that passes through the through hole and is spirally connected to the slider.
[0010] This utility model has the following beneficial effects: This utility model, through the combination of movable hooks, fixed hooks and wire ropes, allows the funnel to flexibly adjust its suspension angle and position according to the location of the engine drain port, thereby adapting to the drain requirements of different engine models or different parts, improving the flexibility of installation and the scope of application.
[0011] This invention, by setting a linkage ring and a scraper on the inner wall of the funnel, can scrape off the oil stains or impurities adhering to the inner wall of the funnel during or after the oil discharge process, effectively preventing oil residue and funnel blockage, keeping the inner wall clean, and improving oil receiving efficiency and service life. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a structural diagram of the funnel in this utility model.
[0015] Figure 3 This is a structural diagram of the linkage ring and slider in this utility model.
[0016] Figure 4 This is a structural diagram of the linkage ring in this utility model.
[0017] The attached diagram lists the components represented by each number as follows: 1. Funnel; 101. End; 102. Fixed hook; 103. Sliding groove; 2. Quick connector; 3. Movable hook; 301. Steel wire rope; 4. Linkage ring; 401. Scraper; 402. Locking bolt; 403. Slider; 404. L-shaped bar; 405. Through hole. Detailed Implementation
[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Example
[0019] Please see Figures 1 to 4 This utility model is an oil receiving device for aircraft engine oil draining, including a funnel 1. The funnel 1 serves as the main container of the oil receiving device, used to collect oil drained from the aircraft engine. Its design ensures that the oil flows in a concentrated manner to the outlet, avoiding leakage or splashing. Two sets of fixed hooks 102 are welded to the upper part of the outer wall of the funnel 1 in a ring evenly distributed manner along the periphery of the funnel 1. A movable hook 3 is provided directly above each set of fixed hooks 102. The movable hook 3 is connected to the fixed hook 102 directly below by a steel wire rope 301. The movable hook 3 is connected to the fixed hook 102 by the steel wire rope 301. The movable hook 3 can be adjusted at will, thereby allowing the oil receiving device to adjust the suspension position and angle within a certain range, so as to adapt to different installation environments and enhance the installation flexibility of the funnel 1. The steel wire rope 301 provides a flexible and adjustable connection method, so that the entire oil receiving device can adapt to the oil draining needs of different parts of the engine and can maintain a firm connection. A linkage ring 4 is provided on the upper part of the inner wall of the funnel 1. Four sets of scraper blades 401 are fixed on the lower end face of the linkage ring 4 and are evenly distributed in a ring along the circumference. The linkage ring 4 is controlled to slide inside the funnel 1, thereby driving the scraper blades 401 to move on the inner wall of the funnel 1. This can remove residual oil or impurities, promote oil flow, keep the inner wall of the funnel 1 clean, and prevent blockage at the bottom of the funnel 1. An end head 101 is provided at the lower end of the funnel 1. A quick connector 2 is fitted on the lower end face of the end head 101. The oil pipe is installed on the quick connector 2, which allows the funnel 1 to be connected to the container through the oil pipe, reducing the risk of oil leakage and improving operating efficiency.
[0020] Specifically, an L-shaped strip 404 is fixed on the upper surface of the linkage ring 4 located between the two sets of fixed hooks 102, and each L-shaped strip 404 is hung on the upper part of the funnel 1. The L-shaped strip 404 is hung on the funnel 1, so that the L-shaped strip 404 is used to support the linkage ring 4, so that the linkage ring 4 is stably located in the upper part of the inner side of the funnel 1. The surface wall of the funnel 1 located between the two sets of fixed hooks 102 is provided with sliding grooves 103. Each sliding groove 103 is provided with a slider 403 that connects with the L-shaped strip 404. The slider 403 is set in the sliding groove 103. After the L-shaped strip 404 and the slider 403 are assembled and connected, the sliding groove 103 limits the slider 403. Thus, the slider 403 limits the L-shaped strip 404, so that the L-shaped strip 404 is stably fitted at the upper end of the funnel 1, and the scraper 401 does not vibrate up and down randomly on the inner wall of the funnel 1. The L-shaped bar 404 has a through hole 405 through the side wall of the slider 403. The surface wall of the L-shaped bar 404 is provided with a locking bolt 402 that passes through the through hole 405 and is spirally connected to the slider 403. The locking bolt 402 is passed through the through hole 405 and assembled with the slider 403. Therefore, when the L-shaped bar 404 is moved, the L-shaped bar 404 will drive the slider 403 to move in the sliding groove 103.
[0021] The operation process of this embodiment is as follows: the funnel 1 is suspended at the position of the engine drain port by the fixed hook 102 and the movable hook 3, and the wire rope 301 is adjusted to make the funnel 1 aligned with the drain port. When the engine oil is drained, the oil flows into the funnel 1. The oil pipe and end 101 are connected by the quick connector 2, so that the oil can be discharged into the external container. After the oil is drained, multiple sets of scrapers 401 are controlled to rotate along the inner wall of the funnel 1 to scrape off the oil adhering to the inner wall of the funnel 1 and promote the flow of oil. To clean the inner wall of funnel 1, move the L-shaped bar 404 to rotate the linkage ring 4 and scraper 401 along the inner wall of funnel 1 to scrape away the residue in funnel 1. After cleaning, disconnect the oil pipe from the quick connector 2 and store funnel 1 for easy storage and future use.
[0022] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An oil drainer for an aircraft engine, characterized in that: The funnel (1) is provided with two sets of fixed hooks (102) evenly distributed in a ring around the outer wall of the funnel (1) welded to the upper part of the outer wall. A movable hook (3) is provided directly above each set of fixed hooks (102). The movable hook (3) is connected to the fixed hook (102) directly below by a wire rope (301). A linkage ring (4) is provided on the upper part of the inner wall of the funnel (1). Four sets of scraper strips (401) evenly distributed in a ring around the outer wall are fixed on the lower end face of the linkage ring (4).
2. The oil drainer for an aircraft engine according to claim 1, characterized in that, The funnel (1) is provided with an end head (101) at its lower end, and a quick connector (2) is fitted onto the lower end face of the end head (101).
3. The oil drainer for an aircraft engine according to claim 1, characterized in that, An L-shaped strip (404) is fixed on the upper surface of the linkage ring (4) located between the two sets of fixed hooks (102), and each L-shaped strip (404) is hung on the upper end of the funnel (1).
4. An oil drainer for an aircraft engine according to claim 2, characterized in that, The surface wall of the funnel (1) located between the two sets of fixed hooks (102) is provided with sliding grooves (103), and each sliding groove (103) is provided with a slider (403) that connects with the L-shaped strip (404).
5. An oil drainer for an aircraft engine according to claim 3, characterized in that, The L-shaped bar (404) has a through hole (405) through the side wall of the slider (403), and the surface wall of the L-shaped bar (404) is provided with a locking bolt (402) that passes through the through hole (405) and is spirally connected to the slider (403).