Hydraulic hose placement and cleaning integrated device
Patent Information
- Application Number
- CN202522452964.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-11-19
AI Technical Summary
解决现有技术中清洗装置无法移动作业,清洗成本高,繁琐、功率低下等技术问题
本实用新型的清洗装置结构简单,能够移动作业;油液可以反复利用,降低使用成本; 其中软管接口设置防错设计,避免误接导致泄漏;提高人工清洗效率,能够有效去除管内壁面的残留油渍。
Smart Images

Figure CN224885988U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic equipment cleaning and maintenance technology, and specifically to an integrated device for placing and cleaning hydraulic hoses. Background Technology
[0002] Cleaning the existing aircraft hydraulic system is the most important means of cleaning the aircraft hydraulic system, which is of great significance for ensuring the level of particulate pollutants on the aircraft. How to clean the aircraft efficiently and with high quality has always been a key focus in the field of hydraulic equipment cleaning and maintenance technology.
[0003] During the cleaning of aircraft hydraulic systems, it is necessary to short-connect the hoses of the left, middle, and right hydraulic sources in advance to form a complete circuit. If too few process hoses are used, the cleaning quality cannot be guaranteed. If a large number of process joints and hoses are used, the residual oil stains on the inner wall of the hoses will increase the risk of secondary contamination of the system during the cleaning process and increase the difficulty of cleaning.
[0004] 1. The structure is complex, it relies on a fixed site, and it cannot be moved for operation; 2. Single-use oil solutions are costly and pollute the environment; 3. The hose connection lacks a fault-prevention design, making it prone to misconnection and leakage; 4. Manual operation is cumbersome and inefficient; 5. Residual oil stains on the inner wall of the hose cannot be effectively removed. Utility Model Content
[0005] Utility Model Purpose This invention addresses the technical problems of existing cleaning devices, such as their inability to operate mobilely, high cleaning costs, cumbersome processes, and low power consumption.
[0006] Technical solution An integrated device for placing and cleaning hydraulic hoses includes a PLC controller, a cleaning connector, a circulating pump, an oil tank, a suspension arm, a steel plate, coarse and fine oil filters, a spiral guide pipe, a solenoid valve, a pressure sensor, a flow sensor, a level sensor, a temperature sensor, and an oil drain port. The steel plate is vertically welded inside the oil tank, and the control panel is welded to the side wall of the oil tank. The upper part of the control panel is equipped with a PLC controller, and the lower part is equipped with an oil filter and a guide pipe. A circulating pump is installed on one side of the oil tank, and a cleaning connector is installed on the other side. The circulating pump draws cleaning agent from the oil tank, and the flow rate and pressure of the cleaning agent are controlled by the PLC controller before reaching the oil filter. After being filtered by the oil filter, the cleaning agent reaches the cleaning connector. The cleaning connector connects to the hydraulic short-connecting hose to realize the automatic cleaning of the hydraulic short-connecting hose.
[0007] Furthermore, it also includes swivel casters, which are located at the bottom of the oil tank for moving the device.
[0008] Furthermore, it also includes a suspension arm, which is mounted on a steel plate and is used to store hydraulic short-connecting hoses of different specifications.
[0009] Furthermore, the cleaning connector is a quick-connect connector, and the specifications of the quick-connect connector are determined by the diameter of the hydraulic short-connect hose.
[0010] Furthermore, the oil filter includes a coarse filter J / YYL-172Z-1 and a fine filter J / YYL-123B, which purify the oil through physical interception and are arranged in a two-stage layout. The pressure oil circuit is equipped with a medium-pressure coarse oil filter, and the return oil circuit is equipped with a low-pressure fine oil filter. Its filtration accuracy is NAS 1638 7-level. After the oil is filtered by multiple oil filters, the oil recycling rate is greatly improved. Technical effect The cleaning device of this invention has a simple structure and can be moved for operation; the oil can be reused repeatedly, reducing the cost of use; the hose interface is designed to prevent misconnection and leakage; it improves the efficiency of manual cleaning and can effectively remove residual oil stains from the inner wall of the pipe. Attached Figure Description
[0011] Figure 1 This is a front view of the present invention; Figure 2 yes Figure 1 The cross-sectional view shown; Figure 3 yes Figure 1 The top view shown. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0013] The features and illustrative embodiments of various aspects of this utility model will now be described in detail. In the following detailed description, numerous specific details are set forth in order to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. This utility model is by no means limited to any specific setup and method set forth below, but covers any improvements, substitutions, and modifications to the structure, method, and device without departing from the spirit of this utility model. In the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring this utility model.
[0014] In the description of this utility model, it should be noted that the directions or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on these directions or positional relationships and are only used for the convenience of describing this utility model and simplifying the description. They should not be construed as limiting this utility model. In addition, the use of ordinal numbers (e.g., "first and second," etc.) is for distinguishing objects and is not limited to this order, and should not be construed as indicating or implying relative importance.
[0015] 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, encompassing both direct connection and indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.
[0016] It should be noted that, where there is no conflict, the embodiments of this utility model and the features therein can be combined with each other, and the various embodiments can be referenced and cited in turn. The present utility model will now be described in detail with reference to and in conjunction with the embodiments.
[0017] An integrated device for placing and cleaning hydraulic hoses includes a PLC controller 1, a cleaning connector 2, a circulation pump 3, an oil tank 5, a suspension arm 6, a steel plate 7, coarse and fine oil filters 8, a spiral guide pipe 9, a solenoid valve 10, a pressure sensor 11, a flow sensor 12, a liquid level sensor 13, a temperature sensor 14, and an oil drain port 15. The steel plate 7 is vertically welded inside the oil tank 5. The control panel is welded to the side wall of the oil tank 5. The upper part of the control panel is equipped with the PLC controller 1, and the lower part is equipped with an oil filter and a guide pipe. The circulation pump 3 is located on one side of the oil tank 5, and the cleaning connector 2 is located on the other side. The circulation pump 3 draws cleaning agent from the oil tank 5, and the flow rate and pressure of the cleaning agent are controlled by the PLC controller 1 to reach the oil filter. After being filtered by the oil filter, the cleaning agent reaches the cleaning connector 2. The cleaning connector 2 is connected to the hydraulic short-connector hose to realize the automatic cleaning of the hydraulic short-connector hose.
[0018] Furthermore, it also includes swivel casters 4, which are located at the bottom of the oil tank 5 for moving the device.
[0019] Furthermore, it also includes a suspension arm 6, which is mounted on a steel plate 7 and is used to store hydraulic short-connecting hoses of different specifications.
[0020] Furthermore, the cleaning connector 2 is a quick-connect connector, and the specifications of the quick-connect connector are determined by the diameter of the hydraulic short-connect hose.
[0021] Furthermore, the oil filter 8 includes a coarse filter J / YYL-172Z-1 and a fine filter J / YYL-123B, which purify the oil through physical interception and are arranged in a two-stage layout. The pressure oil circuit is equipped with a medium-pressure coarse oil filter, and the return oil circuit is equipped with a low-pressure fine oil filter. Its filtration accuracy is NAS 1638. After the oil is filtered by multiple oil filters, the oil recycling rate is greatly improved. Furthermore, the PLC controller 1, with the intelligent control unit as its core, includes: 1. PLC (Programmable Logic Controller) CP1L-EL20DT-D: Serves as the control center, with multiple pre-stored cleaning process programs (such as "high-pressure flushing," "pulse cleaning," and "oil stain cleaning" modes). Each program corresponds to different combinations of pressure and flow logic.
[0022] 2. Human-Machine Interface (HMI Touch Screen): Communicates with the PLC and is used for: • Allows users to select cleaning programs, start / stop devices, and manually set custom parameters (such as target pressure and cleaning time); • Real-time display of key system parameters, including inlet pressure, outlet pressure, real-time flow rate, cleaning fluid temperature, filter element contamination status, current operating mode, and remaining time; • Provide alarm information prompts (such as "abnormal pressure", "filter blockage", "connection error").
[0023] 3. Sensor group: including pressure sensor 11, flow sensor 12, temperature sensor 14, and liquid level sensor 13, used to collect system operating status data and feed it back to PLC.
[0024] 4. Actuator group: drives circulating pump 3, solenoid valve, alarm indicator light, etc., receives instructions from PLC and executes corresponding actions.
[0025] Control Principle and Process: The PLC, through its built-in program, receives sensor feedback signals according to preset logic or user instructions, and controls the actuators to achieve closed-loop automatic control, specifically including: • Process control: After the user selects the program, the PLC automatically adjusts the inverter output to control the speed of the circulating pump 3 motor, so that the system flow and pressure are stabilized at the program set values.
[0026] • Status monitoring and protection: The PLC compares the pressure sensor feedback value with the set value in real time. If an abnormal increase in pressure is detected (such as exceeding the set value by 15%), it is determined that the pipeline is blocked or the filter element is saturated. The PLC immediately triggers an audible and visual alarm and displays a prompt on the touch screen. At the same time, it can automatically execute safety procedures (such as reducing the pump speed or stopping the machine).
[0027] • Adaptive cleaning: In "pulse cleaning" mode, the PLC periodically controls the solenoid valve to open and close or adjusts the frequency converter at a preset frequency to generate a pulse flow of cleaning fluid, thereby enhancing the flushing effect on dirt adhering to the inner wall of the hose.
[0028] • Cycle termination judgment: The PLC can automatically stop the cleaning process and prompt the operator to complete the operation after the cleaning time or the cleanliness of the cleaning fluid (such as by optical sensor) reaches the set threshold.
[0029] The core structure includes: 1. Mobile rack - Vertical fixed steel plate, flexible hose suspension arm; bottom integrated universal casters (with locking function), vertical fixed steel plate, flexible hose suspension arm; - Lightweight frame, total weight ≤50kg.
[0030] 2. Error-proof short-circuit system - The quick-release coupling assembly features a different diameter / different color design (2 DN8 red couplings and 2 DN10 blue couplings). - Solenoid valve linkage control: Automatically cuts off the fluid circuit when not properly matched.
[0031] - Adaptive cleaning algorithm based on flow pressure feedback 3. Self-circulating cleaning module - Multi-stage filtration system (coarse filter + 20μm precision filter element); - Circulation pump (flow rate adjustable 0-30L / min) and storage tank (with liquid level sensor); - The spiral guide tube design extends the residence time of the cleaning fluid.
[0032] -Integrated design of movable structure and self-circulating system 4. Intelligent Control Unit - The PLC controller has multiple preset cleaning programs (such as high-pressure rinsing and pulse cleaning). - Touchscreen displays pressure, flow rate, and filtration status in real time. - Dual error prevention mechanism of irregular interface + solenoid valve The objective of this technology is achieved through the following technical solution: an integrated hydraulic hose placement and cleaning device that is portable, structurally simple, and easy to access. Features include a uniquely shaped interface, a solenoid valve for double error prevention, and multi-stage filtration. Before cleaning the hydraulic system, the short-connected hose undergoes a high-pressure, pulse dual-mode process to thoroughly remove residual material from the hose wall, improving the cleaning particle size of the hose.
[0033] 1. Cleaning efficiency is improved by more than 70%, supporting continuous dual-mode operation; 2. The rate of accidental connection errors has been reduced to zero; 3. The cleaning oil, after being filtered through a two-stage oil filter, has a recycling rate of ≥95%. A hydraulic hose placement and cleaning integrated device, a movable self-circulating hydraulic hose cleaning device with error prevention function, the overall structure includes a PLC controller 1, a cleaning connector 2, a circulation pump 3, bottom integrated universal casters 4, lower double-sided oil storage tanks 5, a hose suspension arm 6, a fixed vertical steel plate 7, a spiral guide plate 8, a multi-stage filtration system 9, a solenoid valve 10, an oil drain valve 11, and a single-sided handrail 12.
[0034] 1. The main body is composed of a vertically fixed steel plate and an integrated base. The vertically fixed plate has a lightweight frame with a total weight of ≤50kg for effective support. Flexible hose suspension arms on both sides are designed to store hoses of different diameters. Liquid storage tanks (with level sensors) are installed on both sides of the bottom to allow for simultaneous cleaning of hoses on both sides. 2. The lower tank is equipped with liquid storage tanks on both sides. A multi-stage oil filter (coarse filter screen + 20μm precision filter element) is designed on the side of the oil supply pipe and return oil line. It supports dual-mode continuous cleaning. After the cleaning oil is filtered by the multi-stage oil filter, the recycling rate is ≥95%, which achieves the purpose of cost reduction. 3. The bottom of the liquid storage tank is located on both sides at the upper metal part of the pipe short-connector. It is fixedly connected by a sealed quick-release connector assembly with different diameter / color design (such as red connector for DN8 and blue connector for DN10). Connect the hose to be cleaned to the corresponding color connector. The system automatically identifies the specifications to effectively prevent incorrect or missing connections. The upper oil isolation zone is designed with solenoid valve linkage control. It automatically cuts off the liquid path when the connection is not correct. It is based on an adaptive cleaning algorithm with flow and pressure feedback. 4. The PLC controller has multiple preset cleaning programs (such as high-pressure flushing and pulse cleaning). Selecting "high-pressure mode" starts the cleaning process, and the circulating pump circulates the oil at a flow rate of 25L / min. The touch screen displays the pressure, flow rate, and filtration status in real time. 5. Impurities are trapped by two-stage filtration, and the machine automatically shuts down once the cleanliness sensor meets the standard; 6. The oil is discharged after separation.
[0035] The above detailed embodiments are a description of the present utility model. It should not be considered that the specific embodiments of the present utility model are limited to these descriptions. For those skilled in the art, several simple deductions and substitutions can be made without departing from the concept of the present utility model, and all of these should be considered to fall within the protection scope of the present utility model.
Claims
1. An integrated device for placing and cleaning hydraulic hoses, characterized in that, The system includes a PLC controller, a cleaning connector, a circulating pump, an oil tank, a suspension arm, a steel plate, coarse and fine oil filters, a spiral guide pipe, a solenoid valve, a pressure sensor, a flow sensor, a level sensor, a temperature sensor, and an oil drain port. The steel plate is vertically welded inside the oil tank, and the control panel is welded to the side wall of the oil tank. The upper part of the control panel is equipped with a PLC controller, and the lower part is equipped with an oil filter and a guide pipe. A circulating pump is installed on one side of the oil tank, and a cleaning connector is installed on the other side. The circulating pump draws cleaning agent from the oil tank, and the flow rate and pressure of the cleaning agent are controlled by the PLC controller before reaching the oil filter. After being filtered by the oil filter, the cleaning agent reaches the cleaning connector. The cleaning connector connects to a hydraulic short-connector hose to realize automatic cleaning of the hydraulic short-connector hose.
2. The apparatus as claimed in claim 1, characterized in that, It also includes swivel casters, which are located at the bottom of the oil tank for moving the device.
3. The apparatus as described in claim 2, characterized in that, There are four omnidirectional casters, evenly distributed around the bottom of the oil tank.
4. The apparatus as claimed in claim 1, characterized in that, It also includes a suspension arm, which is mounted on a steel plate and is used to store hydraulic short-connector hoses of different specifications.
5. The apparatus as claimed in claim 1, characterized in that, The cleaning connector is a quick-connect connector, and the specifications of the quick-connect connector are determined by the diameter of the hydraulic short-connect hose.
6. The apparatus as claimed in claim 1, characterized in that, The oil filter includes a coarse filter J / YYL-172Z-1 and a fine filter J / YYL-123B.
